• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    refrigeration system The present invention relates to a refrigeration system primarily using co2 as refrigerant, the system comprising a receiver, where a liquid outlet is connected to expansion valves that are connected to evaporators that are connected to the suction side of the compressor. , the receiver comprising a second gas outlet which is connected to a second pressure reducing device. the object of the invention is to reduce energy consumption in co2 refrigeration systems, another object is to protect one or more compressors against liquid co2 at the compressor inlet by heating the suction gas. the second pressure reducing device is piped to a first heat exchange device, this first heat exchange device being integrated into the receiver. in this way it can be obtained that the gas which evaporates in the upper part of a receiver can be used for cooling the liquid part of the same receiver. As the gas is sent to a pressure reducing valve, the temperature is reduced in the gas, before the gas is sent to a heat exchanger device with the gas being sent from this heat exchanger device to the suction side of the compressor.
    公开号:BR112013031910B1
    申请号:R112013031910-0
    申请日:2012-06-12
    公开日:2021-09-08
    发明作者:Kim G. Christensen
    申请人:Advansor A/S；
    IPC主号:
    专利说明:

    Field of Invention
    [001] The present invention relates to a refrigeration system using mainly CO2 as refrigerant, the refrigeration system comprising at least one first compressor, from this compressor a pressure outlet pipe connected to at least one heat exchanger that rejects heat, the heat-rejecting heat exchanger being connected to at least a first pressure reducing device and further being connected by piping to at least one receiver, the receiver comprising at least one first liquid outlet, being the outlet connected by piping to one or more first pressure reducing devices, such as expansion valves, these expansion valves being connected to at least a first group of evaporators, the evaporators being connected by suction piping on the side compressor suction, this receiver comprising at least one second outlet, taking the second gas outlet and being 20 connected by piping to a second pressure reduction device. Fundamentals of the Invention
    [002] EP 1789732 discloses a CO2 refrigeration circuit for the circulation of a refrigerant in a predetermined flow direction, comprising in the flow direction a heat exchanger device that rejects heat, a receiver having a liquid portion and a portion of flash gas and after the receiver a medium temperature circuit and a low temperature circuit, each comprising 30 of the circuits, the medium temperature circuit and the low temperature circuit in the direction of flow an expansion device, an evaporator and a compressor, the refrigeration circuit further comprising a liquid line connecting the liquid portion of the receiver with at least one of the two medium temperature and low temperature circuits and having an internal heat exchanger device and a gas line flash connecting the flash gas portion to the receiver via the internal heat exchanger device with the low temperature compressor inlet, 10 transferring The internal heat exchanger device in use draws heat from the liquid flowing through the liquid line to the flash gas flowing through the flash gas line. Purpose of the Invention
    [003] The objective of the invention is to reduce energy consumption in refrigeration systems with CO2, another objective is to protect one or more compressors against liquid CO2 at the compressor inlet by heating the suction gas. Description of the Invention
    [004] The second pressure reduction device is connected by piping to a first heat exchanger device, the first heat exchanger device being integrated into the receiver, either in the liquid part or in the gas part or in both, being the heated refrigerant in the first heat exchanger device, the heated refrigerant being combined with the suction piping.
    [005] Subsequent to the first pressure reducing device, gas and liquid is created and enters the receiver. The formation of gas in the receiver cannot be prevented, but the flash gas portion must be removed to keep the pressure low (3,000 - 4,500kPa (30-45 bar)) inside the receiver. As the gas from the receiver top is sent to a second pressure reducing device, the temperature is reduced in the gas and some liquid is created. The gas is sent to a heat exchanger device, from this heat exchanger device the gas sent to the suction side of the compressor group. By recirculating the gaseous portion after the second pressure reducing device back to the receiver, the temperature in the liquid part of a receiver will be reduced and also some gas inside the receiver will condense. The efficiency of the refrigeration system as a whole is thus increased. Not only is the flash of the refrigerant in a receiver reduced, but the lower temperature in the liquid will also lead to greater efficiency in the evaporators which will then be supplied together with the liquid refrigerant through the pressure reducing means. As the flash gas is sent through the heat exchanger device in the receiver, the flash gas is heated inside the heat exchanger device and the flash gas is mixed with a suction gas increasing the temperature of the suction gas returning to the compressor. In this way it is also avoided that liquid refrigerant is sent towards the suction side of the compressor.
    [006] The second pressure reduction device can be connected by piping and be combined with the suction gas in a combined line, this line being connected to the input to the heat exchanger device, the heat exchanger device being connected by piping to the suction side of the compressor. In this way, the suction gas is heated and the refrigerant in the receiver is cooled even further.
    [007] The suction gas from the suction piping is piped to a second heat exchanger device, the second heat exchanger device being integrated into the receiver, the second heat exchanger device being piping connected to the suction side of the compressor. In this way it can be obtained that the suction gas coming from the evaporators having a relatively low temperature is heated in the heat exchanger device in the receiver. In this way the temperature inside the receiver is reduced, probably in a way that some compensation takes place, so that the amount of gas inside the receiver is reduced. The suction gas which is sent through the heat exchanger device is likewise being heated and the temperature of the suction gas is then so high that the presence of liquid particles in the gas in the suction line 20 towards the compressor. The suction gas exiting the evaporators may have a temperature that is only a few degrees below zero, and heating the gas perhaps up to an additional 10 degrees is sufficient to prevent any liquid particles from forming in the gas.
    [008] The refrigeration system may comprise a second group of evaporators, the evaporators being piping connected to the receiver outlet in the direction of pressure reducing devices such as expansion valves, the second evaporators being piping connected to the side of suction of one or more second compressors, the second compressors having a pressure output, the pressure output being piping connected to the suction line to the first compressors.
    [009] The refrigeration system comprises a second group of evaporators, the second evaporators being connected by piping to the receiver outlet in the direction of pressure reduction devices such as expansion valves, the second evaporators being connected by piping to a third device heat exchanger, the third heat exchanger device being integrated to the receiver, connecting the third heat exchanger device to a pipe to the suction side of one or more second compressors, the second compressors having a pressure output, the pressure outlet connected by piping to the suction line to the first compressors.
    [010] In this way the suction gas coming from the freezer group can be made, which is supposed to be relatively cold and at a temperature of at least 20 degrees below zero, with this gas at a low temperature , is sent through the heat exchanger device inside the receiver, thus the gas is being heated, but the contents of the receiver are being cooled. Therefore, additional condensation can occur inside the receiver and at least the leaving temperature of the liquid refrigerant to supply the expansion valves is at a reduced level. At the same time, the suction gas that is drawn towards a suction compressor has an increased temperature so that all the refrigerant will have evaporated when it reaches the compressor.
    [11l] The refrigeration system may comprise a second group of evaporators, the evaporators being piping connected to the receiver outlet in the direction of pressure reducing devices such as expansion valves, the second evaporators being piping connected to a third heat exchanger device, the third heat exchanger being integrated to the receiver, connecting the third heat exchanger device to a pipe on the suction side of one or more seconds 10 compressors, the second compressors having a pressure output, the output being of pressure connected by piping to a mixing point, the gas at this mixing point being mixed with the line coming from the second pressure reduction device, with the mixed gas being conducted by piping into the heat exchanger device, being the device heat exchanger connected by pipe to the second mixing point, the gas through this mixing point being mixed with the suction gas in a line from the first evaporators, the second mixing point being connected to the suction side of the compressor or compressor group.
    [012] The refrigeration system may comprise a second group of evaporators, the evaporators being piping connected to the receiver outlet in the direction of the 25 pressure reducing devices such as expansion valves, the second evaporators being piping connected to a third heat exchanger device, the third heat exchanger device being integrated into the receiver, connecting this third heat exchanger device to a pipe on the suction side of one or more second compressors, the second compressors having a pressure output, being this pressure outlet connected by piping to a mixing point, the gas at this mixing point being mixed with the suction gas in the line, with the mixed gas being connected by piping to a second mixing point, with the gas at this second point of mixing with the gas in the line coming from the second pressure reduction device, the mixed gas being piped to a heat exchanger device, the heat exchanger device being connected by piping to the suction side of the compressor or compressor group. Description of the Drawing
    [013] Figure 1 shows a refrigeration system in a first embodiment of the invention.
    [014] Figure 2 shows an alternative modality of the system described in Figure 1.
    [015] Figure 3 shows an alternative embodiment for the invention.
    [016] Figure 4 shows a third modality for the invention.
    [017] Figure 5 shows an alternative embodiment for the invention illustrated in Figure 4.
    [018] Figure 6 shows another alternative embodiment for the invention illustrated in Figure 4. Detailed Description of the Invention
    [019] Figure 1 shows a first possible modality for the invention. In Figure 1 a refrigeration system 102 is indicated which comprises one or more compressors104, the compressor 104 having a pressure output line 106 connected to a heat-rejecting heat exchanger device 108. The heat-rejecting heat exchanger 108 is connected through a high pressure control valve 109 via a line 110 to a receiver 112. This receiver has an output 114 connected to a connecting line 116 which is connected to the reducing means 118 mainly in the form of expansion valves 120 on the evaporators 122 From the evaporators 122 exits a line 124 connected to the suction side of the compressor 126. The receiver 10 112 further comprises a gas outlet 128 connected via line 130 to a pressure reducing valve 132 and thence via a line 134 into the heat exchanger device 136 arranged inside the receiver 112. From the heat exchanger device 136 there is a connection line 137 which is combined with the suction line 12 4.
    [020] In operation, the system will function as a traditional refrigeration system, operating primarily with carbon dioxide as the refrigerant. The difference from traditional refrigeration systems is that the pressure in the receiver is kept low by removing the gas from the receiver and the gas coming from the receiver 112 is used to cool the liquid and condense the gas in the receiver. This is achieved by allowing the flash gas to flow through the pressure reducing valve 132 and then into the heat exchanger device 136. Here the relatively cool gas is used to reduce the temperature in the refrigerant inside the receiver 112. inside the heat exchanger device 136 is heated and this heated gas is then transported through line 137, the suction gas is further increased. By using the gas inside the receiver to further cool the liquid portion of the receiver, the efficiency of the refrigeration system is increased.
    [021] Figure 2 shows an alternative modality to Figure 1. In Figure 1a a refrigeration system 102 is indicated which comprises one or more compressors 104, this compressor 104 having a pressure output line 106 connected to a heat exchanger that rejects heat 108. The heat-rejecting heat exchanger 108 is connected through a high pressure control valve 109 through a line 110 to a receiver 112. This receiver has an output 114 connected to a connecting line 116 which is connected to reducing means 118 mainly in the form of expansion valves 120 to evaporators 122. From the evaporators 122 there is a line 124 connected to the suction side of the compressor 126. The receiver 112 further comprises a gas outlet 128 connected via the line 130 to a pressure reducing valve 132 and thence through a line 134 to a connection point where the suction line 124 and the line 134 are combined in line 140, this line 140 being connected to the device. positive heat exchanger 136 disposed inside the receiver 112. The heat exchanger device has an output connected by line 137 to the suction line of compressor 126.
    [022] Figure 3 shows an alternative embodiment to that shown in Figure 1. Figure 4 shows a refrigeration system 302 this refrigeration system comprising a compressor or a group of compressors 204, which has a pressure output 206. This pressure output is connected to a heat-rejecting heat exchanger 208 and the heat-rejecting heat exchanger 208 is further connected to a high pressure control valve 209 from which a line 210 leads to a receiver 212. , an outlet 214 is sending liquid refrigerant towards expansion means such as expansion valves 218, 220 from which expanded refrigerant is sent through evaporators 222. Evaporators 222 are connected to a suction line 224. Line 224 is connected to an input 240 on receiver 212 and further into heat exchanger device 242 disposed on top of receiver 212. An output 244 from receiver 212 is connected to suction line 226 on direction of the compressor group 204.
    [023] The suction gas exiting the evaporators 222 is relatively cold as it crosses line 224 and flows into the exchange device 242. Thus the suction gas heated from the heat exchanger device and the gas within the receiver 212 is cooled to a lower temperature which probably leads to condensation in gas 20 and more liquid refrigerant is thus generated. The heated suction gas which exits through outlet 244 and is sent to the compressor through suction line 226 is thus increased in temperature so that the formation of any liquid particles as part of the gas 25 which is sucked in is totally avoided. of the compressor. In this way, greater safety is obtained against a liquid hammer compressor in a piston and the overall efficiency of the system is increased.
    [024] Figure 4 shows a refrigeration system 302 through a pressure line 306 to a heat-rejecting heat exchanger 308. From this heat-rejecting heat exchanger, the refrigerant flows through a high-pressure control valve 309 to a line 310 in a receiver 312. From this receiver a liquid outlet 314 is connected to the pressure reducing means or expansion valves 318, 320 in the evaporators 322 with the refrigerant being sent from there through a suction line 324 further to the suction side of compressor 326. The liquid outlet 314 from receiver 312 is further connected to low temperature evaporators through pressure reducing means or expansion valves 354, 356 on low temperature evaporators 350, the evaporators being 350 connected by piping 352 to the output of 15 receiver 314 in the direction of pressure reducing devices 354 such as expansion valves 356, the second evaporators 350 being connected by t pipe 358 to the suction side 364 of one or more second compressors 366 the second compressors having a pressure outlet 368, the pressure outlet 368 being connected by piping 370 to suction line 324 to the first compressors 304.
    [025] Figure 5 shows a third embodiment of the invention. A refrigeration system 302 comprises a group of compressors 304 that is connected through a pressure line 306 to a heat-rejecting heat exchanger 308. high pressure 309 for a line 310 in a receiver 312. From this receiver a liquid outlet 314 is connected to 30 pressure reducing means or expansion valves 318, 320 in evaporators 322, from which the refrigerant is still sent through the suction line. 324 to the suction side of compressor 326. Liquid outlet 314 is further connected from receiver 312 to low temperature evaporators through pressure reducing means or expansion valves 354, 356 on low temperature evaporators 350. The output of the evaporators 350 is via a line 358 sent through the heat exchanger device 360 integrated into the receiver 312. The output of the heat exchanger 362 is connected to a line suction line 364 of another low temperature compressor or compressor group 366 having an outlet 368 which is connected by line 370 to suction line 326. freezers is used for a reduction of the temperature in the receiver 312. In this way the liquid content and also the gaseous content of the receiver are cooled to a lower temperature which probably also leads to the condensation of the gas in the receiver 312. At the same time, this leads to heating the suction within the heat exchanger device 360 to a temperature level where the integral refrigerant evaporates before the refrigerant reaches the low temperature of the compressor 366.
    [026] Figure 6 shows a refrigeration system 302 25 comprising a group of compressors 304 that is connected through a pressure line 306 to a heat-rejecting heat exchanger 308. Of this heat-rejecting heat exchanger, the refrigerant passes through a high pressure control valve 309 and enters line 310 and a receiver 312. connected to the pressure reducing means or expansion valves 318, 320 to the evaporators 322 from where the refrigerant is further sent through a suction line 324 to the suction side of compressor 326. Liquid output 5 314 of receiver 312 is further connected to low temperature evaporators through pressure reducing means or expansion valves 354, 356 on low temperature evaporators 350, these evaporators 350 being connected by pipe 352 to the receiver outlet 314 in the direction of the 10 pressure reducing devices 354 such as expansion valves 356, the second evaporators 350 being pipe-connected 358 to a third heat exchanger device 360, the third heat exchanger device 360 being integrated with the receiver 312, from this third heat exchanger device 360 connecting a pipeline 362 to the suction side 364 of one or more second compressors 366 these second compressors 366 having a pressure outlet 368, the pressure outlet 368 being connected by line 380 to a mixing point 390, the gas 20 at this mixing point being mixed with the gas in line 334 from the second mixing device. pressure 332, the mixed gas being piped into a heat exchanger device 336, this heat exchanger device 332 being connected by piping 25 317 to a second mixing point 395, the gas being mixed through this mixing point 395 as suction gas in a line 324 from the first evaporators 322, the second mixing point 395 being connected to the suction side 326 of the compressor or of the 304 compressors.
    [027] Figure 7 shows a refrigeration system 302 J* that comprises a group of compressors 304 that is connected *through a pressure line 306 to a heat-rejecting heat exchanger 308. Of this heat-rejecting heat exchanger, the refrigerant flows through a high pressure control valve 309 to a line 310 to a receiver 312. From this receiver a liquid outlet 314 is connected to pressure reducing means or expansion valves 318, 320 in evaporators 322 from where the refrigerant is further sent through a suction line 10 324 to the suction side of compressor 326. The liquid outlet 314 coming from receiver 312 is further connected to the low temperature evaporators through pressure reducing means or expansion valves 354, 356 in low temperature evaporators 350, the 15 evaporators 350 being connected by piping 352 to the receiver output 314 in the direction of pressure reducing devices 354 such as exp valves. anson 356, the second evaporators 350 being connected by pipe 358 to a third heat exchanger device 360, the third heat exchanger device 360 being to the receiver 312, connecting this third heat exchanger device 360 by a pipe 364 on the side of suction of one or more second compressors 366, the second compressors 366 having a pressure outlet 368, the pressure outlet 368 being connected by piping 370 to a mixing point 390, at this mixing point 390 being the gas mixed with the suction gas in line 324, the mixed gas being connected by piping to a second mixing point 395, at this second mixing point 395 being the gas mixed with the gas in line 334 coming from the second pressure reducing device 332, being the mixed gas piped into a heat exchanger device 336, the heat exchanger device 332 being connected by pipeline 317 to the suction side 326 of the pad r or group of 5 compressors 304.
    [028] In a preferred embodiment, all of the different heat exchanger devices depicted in Figures 1-7 can be combined into a common system in which all or some of the heat exchanger devices 10 are disposed within the same receiver. All the heat exchanger devices described in Figures 1 - 7 are configured in the form of a volume and a surface capable of holding a volume of refrigerant and exchanging heat between the refrigerant inside the heat exchanger device 15 and the refrigerant in the receiver. The heat exchanger device could be designed in the form of a vessel, coil or plate construction. The position of the exchangers can vary from the gaseous part of the receiver to the liquid part of the receiver. In designs 20 with more than one heat exchanger device, the position of these heat exchanger devices can be selected independently of each other,
    [029] Many types of heat exchanger devices can be used, these can be plate heat exchangers or tubular heat exchangers, the heat exchanger in the form of a coil arranged outside the receivers is also possible.
    [030] The mixing points (190, 195, 290, 295, 390, 395) in the same refrigerant lines can be arranged 30 independently of each other and in different positions.
    权利要求:
    Claims (7)
    [0001]
    1. A refrigeration system (102, 202, 302) using primarily CO2 as a refrigerant, wherein the refrigeration system comprises at least a first compressor (104, 204, 304), wherein the compressor (104, 204, 304) comprises a pressure outlet pipe (106, 206, 306) connected to at least one heat-rejecting heat exchanger (108, 208, 308), the heat-rejecting heat exchanger (108, 208, 308) being connected to a first device of pressure reduction (109, 209, 309) and by piping (110, 210, 310) further connected to at least one receiver (112, 212, 312), wherein the receiver (112, 212, 312) comprises at least a first liquid outlet (114, 214, 314), this outlet (114, 214, 314) being piped (116, 216, 316) to one or more first pressure reducing devices (118, 218, 318), wherein first pressure reducing devices (118, 218, 318) are connected to at least a first group of evaporators (122, 222, 322), these evaporators being (122 , 222, 322) connected by suction piping (124, 224, 324) to a suction side (126, 226, 326) of the compressor (104, 204, 304), wherein the receiver (112, 212, 312) comprises at least one second gas outlet (128, 228, 328), this second outlet (128, 228, 328) being connected by piping (130, 230, 330) configured to direct gas refrigerant into the receiver (112, 212 , 312) to a second pressure reducing device (132, 232, 332), CHARACTERIZED in that the second pressure reducing device (132, 232, 332) is configured to expand the gas refrigerant to a state of lower temperature and is connected by piping (134, 234, 324) configured to direct expanded gas refrigerant from the second pressure reducing device (132, 232, 332) to a first heat exchanger device (136, 236, 336 ), the first heat exchanger device (136, 236, 336) being integrated into the receiver (112, 212, 312) and configured to transfer ca. lor the gas refrigerant within the receiver (112, 212, 312) to the gas refrigerant expanded in the first heat exchange device (136, 236, 336) with the heated refrigerant being connected to the suction piping (124, 224, 324 ).
    [0002]
    2. Cooling system according to claim 1, CHARACTERIZED by the fact that the second pressure reducing device (132, 232, 332) is connected by piping (134) and combined with the suction gas in a combined line (140), this line (140) being connected to the inlet to the heat exchanger device (136), the heat exchanger device being connected by piping (137) to the suction side of the compressor.
    [0003]
    3. Cooling system, according to claim 1, CHARACTERIZED by the fact that the suction gas comes from the suction pipe (224) by a pipe (240) connected to a second heat exchanger device (242), the second heat exchanger device (242) integrated in the receiver (212), the second heat exchanger device (242) being piped (244) to the suction side of the compressor (204).
    [0004]
    4. Refrigeration system, according to any one of claims 1 to 3, CHARACTERIZED by the fact that the refrigeration system comprises a second group of evaporators (350), the evaporators (350) being connected by piping (352) to the outlet of receiver (314) in the direction of pressure reducing devices (354) such as expansion valves (356), the second evaporators (350) being connected by piping (358) to the suction side (364) of one or more seconds compressors (366), the second compressors having a pressure outlet (368), the pressure outlet (368) being piped (370) to the suction line (324) to the first compressors (304).
    [0005]
    5. Refrigeration system, according to any one of claims 1 to 3, CHARACTERIZED by the fact that the refrigeration system comprises a second group of evaporators (350), the evaporators (350) being connected by piping (352) to the outlet of receiver (314) in the direction of the pressure reducing device (354) such as expansion valves (356), the second evaporators (350) being connected by piping (358) to a third heat exchanger device (360), the third heat exchanger device (360) integrated into the receiver (312), from which the piping (364) of the third heat exchanger device (360) connects to the suction side of one or more second compressors (366), having the second compressors a pressure outlet (368), the pressure outlet (368) being piped (370) through a mixing point (390) to the suction line (324) to the first compressors (304).
    [0006]
    6. Refrigeration system, according to any one of claims 1 to 3, CHARACTERIZED by the fact that the refrigeration system comprises a second group of evaporators (350), these evaporators (350) being connected by piping (352) to the outlet of receiver (314) in the direction of pressure reducing devices (354) such as expansion valves (356), the second evaporators (350) being connected by piping (358) to a third heat exchanger device (360), the third heat exchanger device (360) integrated into the receiver (312), from which the piping (362) of the third heat exchanger device (360) connects to the suction side (364) of one or more second compressors (366 ), the second compressors having a pressure outlet (368), this pressure outlet (368) being connected by piping (380) to a mixing point (390), and at this mixing point the gas is mixed with the line (334) which comes from the second device for reducing pressure (332), the mixed gas being piped into a heat exchanger device (336), the heat exchanger device (336) being connected by piping (317) to a second mixing point (395), being through this mixing point (395) the gas mixed with the suction gas in a line (324) coming from the first evaporators (322), the second mixing point being connected to the suction side (326) of the compressor or group of compressors (304).
    [0007]
    7. Refrigeration system, according to any one of claims 1 to 3, CHARACTERIZED by the fact that the refrigeration system comprises a second group of evaporators (350), these evaporators (350) being connected by piping (352) to the output of receiver (314) in the direction of the pressure reducing device (354) such as expansion valves (356), the second evaporators (350) being connected by piping (358) to a third heat exchanger device (360), being the third heat exchanger device (360) integrated into the receiver (312), from which the piping (364) of the third heat exchanger device (360) connects to the suction side of one or more second compressors (366), the second compressors having a pressure outlet (368), the pressure outlet (368) being connected by piping (370) to a mixing point (390), whereby at this mixing point (390) the gas is mixed with the suction gas in the line (324), the mixed gas being connected by piping to a second mixing point (395), whereby at this second mixing point (395) the gas is mixed with the gas in the line (334) coming from the second pressure reducing device (332), the gas being mixed piped into a heat exchanger device (336), the heat exchanger device (336) being piped (317) to the suction side (326) of the compressor or group of compressors (304).
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112013031910B1|2021-09-08|REFRIGERATION SYSTEM
    KR101790462B1|2017-10-25|Defrost system for refrigeration device and cooling unit
    JP6111157B2|2017-04-05|Gas vaporizer with cold energy recovery function and cold energy recovery device
    US5438846A|1995-08-08|Heat-pump with sub-cooling heat exchanger
    JP3966308B2|2007-08-29|Cooling and heating system and vending machine equipped with this cooling and heating system
    CN103649650B|2015-07-22|Refrigeration circuit, gas-liquid separator and heating and cooling system
    BRPI0915033B1|2019-12-31|reversible system for recovering heat energy by removing and transferring calories from one or more media to another or several other media
    KR20190023010A|2019-03-07|Continuous heating Air Conditioner system
    JP5490382B2|2014-05-14|Water source heat pump
    US10578344B2|2020-03-03|Reversible liquid suction gas heat exchanger
    EP3623724A1|2020-03-18|Heat pump with pre-heating / pre-cooling of heat / cold source
    KR101060511B1|2011-08-30|Heat pump system
    KR20170054373A|2017-05-17|Refrigeration Cycle Device
    KR101060512B1|2011-08-30|Cold and hot water generator
    KR20030081153A|2003-10-17|Absorption refrigerator
    JP2004232905A|2004-08-19|Refrigerator
    KR20120113456A|2012-10-15|Cooling and heating apparatus using the geothermal
    JP2011169558A|2011-09-01|Refrigerating machine for transportation
    WO2016161681A1|2016-10-13|Water supply device
    CN211011723U|2020-07-14|Air conditioner and cold liquid integrated system
    WO2016111616A1|2016-07-14|Mud cooling device
    CN209512325U|2019-10-18|A kind of water refrigerant air-conditioning equipment
    WO2019189748A1|2019-10-03|Refrigeration device
    CN207585139U|2018-07-06|Refrigerating circulatory device
    JP2020159585A|2020-10-01|Chiller unit
    同族专利:
    公开号 | 公开日
    US8966934B2|2015-03-03|
    PL2721355T3|2017-02-28|
    WO2012176072A3|2013-07-18|
    EP2721355B1|2016-11-02|
    CA2839087C|2018-07-17|
    CA2839087A1|2012-12-27|
    MX2013014718A|2014-09-01|
    DK177329B1|2013-01-14|
    EP2721355A2|2014-04-23|
    DK2721355T3|2017-01-23|
    MX336551B|2016-01-21|
    US20130145791A1|2013-06-13|
    BR112013031910A2|2020-10-06|
    ES2609115T3|2017-04-18|
    WO2012176072A2|2012-12-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS5434273Y2|1974-12-04|1979-10-20|
    JPS5174849A|1974-12-25|1976-06-29|Hiroyuki Nishikama| Ikoekibachi |
    JPH0232547B2|1983-06-17|1990-07-20|Hitachi Ltd|
    JPS60253763A|1984-05-30|1985-12-14|Hitachi Ltd|Refrigeration cycle|
    JPH09196480A|1996-01-12|1997-07-31|Hitachi Ltd|Liquid refrigerating apparatus for refrigerating device|
    US6170272B1|1999-04-29|2001-01-09|Systematic Refrigeration, Inc.|Refrigeration system with inertial subcooling|
    US7065979B2|2002-10-30|2006-06-27|Delaware Capital Formation, Inc.|Refrigeration system|
    EP1794510B1|2004-08-09|2012-02-08|Carrier Corporation|Co2 refrigeration circuit with sub-cooling of the liquid refrigerant against the receiver flash gas and method for operating the same|
    DE102004038640A1|2004-08-09|2006-02-23|Linde Kältetechnik GmbH & Co. KG|Refrigeration circuit and method for operating a refrigeration cycle|
    MX2007010002A|2005-02-18|2008-03-19|Carrier Corp|Refrigeration circuit with improved liquid/vapour receiver.|
    EP1856457B1|2005-02-18|2017-07-12|Carrier Corporation|Refrigeration circuit|
    CN101124438B|2005-02-18|2010-08-04|卡里尔公司|CO2-refrigeration device with heat reclaim|
    JP2007162988A|2005-12-12|2007-06-28|Sanden Corp|Vapor compression refrigerating cycle|
    US7900467B2|2007-07-23|2011-03-08|Hussmann Corporation|Combined receiver and heat exchanger for a secondary refrigerant|
    JP2009103301A|2007-10-02|2009-05-14|Nok Corp|Sealing device|
    CN101413745B|2007-10-17|2013-02-06|开利公司|Middle and low temperature integrated type refrigerated storage / refrigerating system with air discharging and defrosting functions|
    CA2662986C|2008-04-18|2012-02-07|Serge Dube|Co2 refrigeration unit|
    US7913506B2|2008-04-22|2011-03-29|Hill Phoenix, Inc.|Free cooling cascade arrangement for refrigeration system|
    US9989280B2|2008-05-02|2018-06-05|Heatcraft Refrigeration Products Llc|Cascade cooling system with intercycle cooling or additional vapor condensation cycle|
    DK2318782T3|2008-07-07|2019-04-23|Carrier Corp|COOLING CIRCUIT|
    US8973379B2|2008-07-25|2015-03-10|Hill Phoenix, Inc.|Refrigeration control systems and methods for modular compact chiller units|
    US8631666B2|2008-08-07|2014-01-21|Hill Phoenix, Inc.|Modular CO2 refrigeration system|
    CA2738874C|2008-10-23|2012-07-10|Serge Dube|Co2 refrigeration system|
    GB2469616B|2009-02-11|2013-08-28|Star Refrigeration|A refrigeration system operable under transcritical conditions|
    US20120022706A1|2009-03-27|2012-01-26|Carrier Corporation|System and method for controlling a refrigeration system|
    EP2417406B1|2009-04-09|2019-03-06|Carrier Corporation|Refrigerant vapor compression system with hot gas bypass|
    WO2010126980A2|2009-04-29|2010-11-04|Carrier Corporation|Transcritical thermally activated cooling, heating and refrigerating system|
    US10088202B2|2009-10-23|2018-10-02|Carrier Corporation|Refrigerant vapor compression system operation|
    DK2339265T3|2009-12-25|2018-05-28|Sanyo Electric Co|Cooling device|
    CA2724255C|2010-09-28|2011-09-13|Serge Dube|Co2 refrigeration system for ice-playing surfaces|
    CA2735347C|2011-03-28|2011-10-11|Serge Dube|Co2 refrigeration system for ice-playing surface|ES2741024T3|2013-05-03|2020-02-07|Hill Phoenix Inc|Systems and methods for pressure control in a CO2 cooling system|
    JP6091399B2|2013-10-17|2017-03-08|三菱電機株式会社|Air conditioner|
    US9657969B2|2013-12-30|2017-05-23|Rolls-Royce Corporation|Multi-evaporator trans-critical cooling systems|
    CN106415156B|2014-03-14|2019-05-31|三菱电机株式会社|Refrigerating circulatory device|
    EP3147591A4|2014-05-19|2018-01-31|Mitsubishi Electric Corporation|Air-conditioning device|
    CN106415153B|2014-06-27|2019-04-23|三菱电机株式会社|Refrigerating circulatory device|
    WO2017051228A1|2015-09-24|2017-03-30|Kolár Jaroslav|Method of increasing coefficient of performance and output of heat pumps|
    JP2017172873A|2016-03-24|2017-09-28|東芝キヤリア株式会社|Intermediate pressure receiver and refrigeration cycle device using intermediate pressure receiver|
    US11125483B2|2016-06-21|2021-09-21|Hill Phoenix, Inc.|Refrigeration system with condenser temperature differential setpoint control|
    US11118817B2|2018-04-03|2021-09-14|Heatcraft Refrigeration Products Llc|Cooling system|
    US11035584B1|2018-04-18|2021-06-15|Thomas A. Peronne, Jr.|Efficent air conditioning system|
    US10663196B2|2018-06-05|2020-05-26|Heatcraft Refrigeration Products Llc|Cooling system|
    CN112219074A|2018-06-15|2021-01-12|三菱电机株式会社|Refrigeration cycle device|
    US10663201B2|2018-10-23|2020-05-26|Hill Phoenix, Inc.|CO2 refrigeration system with supercritical subcooling control|
    US11268746B2|2019-12-17|2022-03-08|Heatcraft Refrigeration Products Llc|Cooling system with partly flooded low side heat exchanger|
    法律状态:
    2020-10-20| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-12-15| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-06-22| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-09-08| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/06/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA201170306|2011-06-16|
    DKPA201170306A|DK177329B1|2011-06-16|2011-06-16|Refrigeration system|
    PCT/IB2012/001995|WO2012176072A2|2011-06-16|2012-06-12|Refrigeration system|
    [返回顶部]