• 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:
    A Split-type heat pump unit comprises a heat exchanger [14] having its primary side connected to the refrigerant circulation circuit © between the outlet of the indoor unit (9) radiator (10) and the inlet to the outdoor unit (1) and having its secondary side connected to a heating element (16) water is heated. A single-pass shield medium line (18) is provided to allow the refrigerant to short-circuit the radiator (10) of the indoor unit (9) and pass directly through the primary side of the heat exchanger (14). A bypass flow control element (19) is provided in the bypass line (18) to control the bypass shield flow through the bypass shield line. (Fig- 2)
    公开号:SE1150271A1
    申请号:SE1150271
    申请日:2009-10-19
    公开日:2011-03-28
    发明作者:Vilmos Toeroek
    申请人:Vilmos Toeroek；
    IPC主号:
    专利说明:

    15 20 25 30 2 room heating by introducing hot air, a lower air temperature at head height in people in the room is sufficient for sufficient heating comfort, which lowers the energy requirement for heating. With a heat pump that produces underfloor heating, your premises can be heated.
    There are air-to-water heat pumps, but these require a significantly higher price than air-to-air heat pumps with a single indoor unit and produce only water-borne heat.
    It is known (Mitsubishi) to produce water-borne heat energy together with air-borne heat from the indoor unit by means of additional equipment by letting the hot gaseous refrigerant flowing out of the outdoor unit's compressor pass a heat exchanger for water-borne underfloor heating before the refrigerant reaches the heat pump housing.
    The disadvantage of an arrangement of this kind is that the liquid condensed refrigerant formed in the heat exchanger for floor heating needs to be transported against the gravitational forces from the heat exchanger located near the floor level to the usually near the ceiling mounted indoor unit by means of bubble-shaped gas. This is an unreliable method of transport.
    In a well-dimensioned heat exchanger for underfloor heating, the refrigerant also condenses at a temperature close to the flow temperature of the water in the underfloor heating system, Lex. at just over 30 ° C. This refrigerant temperature is insufficient to provide appreciable heating of the room air passing the indoor part, especially when the indoor part fl is set at such a low speed that it does not produce disturbing noise, which is highly desirable, especially at night. An object of the invention is to remedy the above-described shortcomings of the prior art and to provide a heat pump unit which economically produces not only airborne heat energy as with the conventional split heat pump units but also waterborne heat energy.
    This object is achieved with the features set forth in the independent claim and is described in more detail below with the aid of the accompanying schematic drawing figures.
    The above object can advantageously be achieved with an additional unit by means of which commercial air-to-air heat pump units of the type indicated in the introduction can be modified to generate both air-borne and water-borne heat energy. This modification can be performed substantially without any intervention in the outdoor and indoor parts.
    Suppliers of outdoor and indoor units can therefore be expected to apply their usual product guarantees to devices modified according to the invention.
    Brief description of the drawings: Fig. 1 shows, as an illustration of the prior art, a conventional split-air defense pump assembly of split design; Fig. 2 shows the heat pump assembly of Fig. 1 modified in accordance with an embodiment of the invention; and Fig. 3 shows another modification of the heat pump unit in lig. 1.
    The heat pump unit is described in the following with a focus on its operation for the production of both hot air for room heating and water-borne heat for heating water for, for example, floor heating or other surface heating or heating of tap water. As is easily understood, it can in a manner known per se also be designed to be used for cooling, whereby the flow direction of the refrigerant is reversed with a four-way valve. The flow direction of the refrigerant is assumed to be that which applies to heating operation [as opposed to cooling operation), and such terms as, for example, inlet] outlet and upstream / downstream refer to this flow direction.
    The heat pump unit belonging to the prior art in Fig. 1 has an outdoor part 1 and an indoor part 9 which is connected to the outdoor part with a circulation circuit generally designated C by a refrigerant. During operation, a refrigerant circulates in the circulation circuit C through an expansion valve 2, a radiator 3 provided with a fan and a compressor 4, all included in the outdoor part 1, and through a radiator 10 provided with a fan in the indoor part 9. In the outdoor part 1 there is a control unit 5 to which a temperature sensor 6 for the outdoor air and a temperature sensor 7 for the hot gaseous refrigerant flowing out of the compressor 4 are connected. In the indoor part 9 there is also a control unit 11 to which a temperature sensor 12 for the indoor air and a temperature sensor 13 for the refrigerant partially flowing out of the radiator 10 are connected. The control units 5 and 11 in the outdoor part 1 resp. the indoor part 9 electrically communicates with each other through a signal line 8 and forms a control device for the heat pump unit.
    In the outdoor unit 1, during heat pump operation, the cold, partly gaseous refrigerant flowing out of the expansion valve 2 is preheated during its passage through the radiator 3, after which the refrigerant is compressed by the compressor 4. The hot refrigerant condenses in the indoor part radiator 10. to the outdoor part 1. By means of the temperature sensor 12 in the indoor part 9, the control unit 11 strives to pour the temperature of the indoor air at the desired set value.
    The temperature sensor 13 measures the condensate temperature of the refrigerant, an important intermediate quantity for regulating the temperature of the indoor air.
    Fig. 2, in which the reference numerals 1 to 13 in fig. 1 is used to denote the same or corresponding parts as in Fig. 1, shows an embodiment of the heat pump unit according to the invention. This heat pump unit comprises a number of modifications of the known apparatus in Fig. 1. Thus a first heat exchanger 14 is arranged which has its (heat emitting) primary side connected in the refrigerant circulation circuit C and directing the refrigerant leaving the radiator 10 to the inlet side 1 of the outdoor unit which the refrigerant flows through the expansion valve 2, the radiator 3 and the compressor 4 as in Fig. 1. Just as in Fig. 1, the refrigerant then flows back to the indoor unit 9 and its radiator 10 and into the primary side of the heat exchanger 14.
    The (heat receiving) secondary side of the heat exchanger 14 is connected to a water circulation circuit which includes a circulation pump 15 arranged to conduct water heated in the heat exchanger 14 to a heating element 16. In the illustrated embodiment the heating element is formed by a floor heating arrangement to which the water is supplied. it flows from the secondary side of the heat exchanger 14 through conduits connected between the upstream and downstream parts of the secondary side of the heat exchanger 14. It should be noted that the heating element 16 is not shown in its entirety but is only represented by four pairs of tubular connection parts which convey the hot water to a corresponding number of tubular heating circuits. Thus, the heater circuits are not displayed.
    Fig. 2 also shows an optional additional heat exchanger 17 connected in series with the first heat exchanger 14. If desired, more than one additional heat exchanger may be included in the refrigerant circulation circuit. Regardless of the number of such heat exchangers in addition to the first heat exchanger 14, temperature sensor 13 should be located downstream of the last heat exchanger, as it must sense the refrigerant temperature near the expansion valve 2 (for practical reasons, the refrigerant temperature can be assumed to be the same throughout the part of the refrigerant). the circulation circuit extending between the last additional heat exchanger and the inlet to the expansion valve 2).
    Fig. 2 also shows a further, likewise optional heat exchanger 20 having its [heat emitting) primary side connected in the part of the refrigerant circulation circuit C which extends between the output of the compressor 4 and the radiator 10 of the indoor part. A bypass line is connected between the inlet and the outlet of the radiator 10 of the indoor part 9 to allow the refrigerant to short-circuit this radiator and flow directly to the primary side of the heat exchanger 14 as shown. Such a bypass line is shown in fig. 2 and is designated 18. In the bypass line 18, a bypass styr fate control element 19 is connected for controlling the bypass shield medium flowing through the bypass shield medium line.
    The bypass flow control element can be, for example, a non-return valve or a solenoid valve which is operated automatically or manually when the heat pump unit is to be used for air conditioning (cooling of the radiator 10, the direction of the refrigerant flow through the radiators 3 and 10 and the expansion valve reversed). It can also simply be formed by the line 18 itself, e.g. be a pipe part with a suitable internal cross-section which short-circuits the inlet and outlet of the radiator 10 of the indoor part 9, or a throttle plate or some other fixed or adjustable limiting element. In some applications of the invention, one may advantageously use an adjustable shut-off valve to allow adjustment of the bypass flow rate over a suitable range, including zero fl fate rate. If the optional heat exchanger 20 is provided, at least that part of the refrigerant may condense on the primary side of this heat exchanger. If the heat exchanger 20 is located at a lower level than the radiator 10 of the indoor unit 9, so that there is a risk that any condensate will not be led to and through the radiator and past it on the outlet side of the radiator, the bypass line 18 should be mounted downwards in the desired direction for condensate fl desolate or at least not rising to conduct condensate to the part of the refrigerant circulation circuit (C) extending from the indoor part (9) to the outdoor part 1. If it is also desired that all gaseous refrigerant be safely led to the indoor part radiator (10), the bypass line should include a condensate valve, which can be of any known type.
    In the embodiment shown in Fig. 3, the heat pump unit is provided with an auxiliary heat source 22, namely a wood-burning stove with a water tank which acts as an accumulator for water-borne heat.
    The designations 1 t.o.m. 16 and 18 and 19 denote the same parts as the corresponding designations in Fig. 2. When the auxiliary heat source 22 is in operation, it supplies hot water to the primary side of the heat exchanger 20 by means of an associated circulation pump 21, the secondary side of which is flowed by water preheated by the heat exchanger heat exchanger 14. The circulation pump 15 supplies hot water from the heat exchanger to the heating element 16 formed by underfloor heating coils. It will be appreciated that the heat pump unit and the auxiliary heat source 22 may each supply the floor heating coils with hot water. When the heat pump unit and the auxiliary heat source 22 simultaneously generate heat, the heat pump unit adjusts its heating power thanks to its control device, consisting of control units 5 and 1 l, so that the heat pump unit strives to keep the indoor air temperature measured by the temperature sensor 12. The auxiliary protection source 22 can be switched on whenever the user wants to enjoy the comfort of the flames or when the heating power of the heat pump unit is not sufficient. An auxiliary heat source (not shown] may alternatively or additionally be connected to the other heat exchangers 17 and 20 in Figs. 2 and 3.
    权利要求:
    Claims (7)
    [1]
    A room heating system, comprising a first heat source, the first heat source being a conventional heat pump device comprising: - an outdoor part (1) with an expansion valve (2), a radiator (3) arranged to be heated by outdoor air, and a refrigerant compressor (4) , - an indoor part (9) with an air-cooled radiator (10), - a refrigerant circulation circuit (C) which contains the expansion valve (2) and is arranged to lead a refrigerant pressurized by the compressor (4) from the compressor to the radiator (10) and back to the compressor, and - a control device (5, 11), comprising a first temperature sensor for sensing the temperature of the refrigerant at the outlet of the compressor (4), a second temperature sensor (13) for sensing the temperature of it from the radiator (10) of the indoor part (9) cooling medium flowing to the expansion valve (2), and a third temperature sensor (12) for sensing the temperature of an air stream passing through the radiator (10) of the indoor part (9), characterized in that space the additional heating system further comprises an additional unit arranged to modify the room heating system substantially without any intervention in the outdoor and indoor parts, the additional unit comprising: - a heating element (16) which works with water as heat carrier, - a first heat exchanger (14) connected with its primary side the refrigerant circulation circuit (C) between the outlet of the radiator (10) of the indoor unit (9) and the expansion valve (2) and has its secondary side connected to the heating element (16), an additional heat source (22) connected to the secondary side of the first heat exchanger (14) - at least one circulation pump (15) arranged to supply water heated in the first heat exchanger (14) to the heating element (16), and - a bypass shield medium line (18) forming a refrigerant flow path shorting the part of the heat exchanger. the refrigerant flow path extending through the radiator (10) of the indoor unit (9) to allow refrigerant to pass past this radius dryer (10), wherein the heating element (16) is used for position temperature surface heating, heating a number of rooms and - the second temperature sensor (13) of the control device (5, 11) is positioned to sense the refrigerant temperature downstream of the heat exchanger (14) and upstream of the expansion valve. ).
    [2]
    A room heating system according to claim 1, wherein a bypass fate control element (19) is provided in the bypass line (18) to control bypass shield medium flowing through the bypass shield line.
    [3]
    Room heating system according to claim 1 or 2, wherein at least one further heat exchanger (17) with its primary side is connected in the refrigerant circulation circuit (C) between the outlet of the indoor part (9) raclator (10) and the expansion valve (2) and with its secondary side connected to an additional heater, and wherein the second temperature sensor (13) is positioned to sense the temperature of the refrigerant leaving the radiator (10) of the indoor part (9) to the expansion valve (2) at a sensing point between the additional heat exchanger (17) and the expansion valve ( 2) or, if there is more than one additional heat exchanger, downstream of the additional heat exchanger closest to the outdoor unit (1).
    [4]
    A room heating system according to claim 1 or 2 or 3, wherein at least one further heat exchanger (20) is arranged which has its primary side connected in the refrigerant circulation circuit (C) between the outlet from the outdoor part (1) and the inlet to the radiator of the indoor part (9). (10).
    [5]
    The pipe heating system according to any one of the preceding claims, wherein the bypass shield medium line (18) is arranged non-ascending to conduct condensate to the part of the cooler circulation circuit (C) located between the outlet of the indoor part (9) radiator (10) and the expansion valve (2).
    [6]
    The pipe heating system according to any one of the preceding claims, wherein the heating element (16) is used for floor heating.
    [7]
    A room heating system according to any one of the preceding claims, wherein the additional heat source (22) is a wood-burning stove provided with a water tank to function as an accumulator for water-borne heat.
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    同族专利:
    公开号 | 公开日
    WO2010047650A1|2010-04-29|
    SE0802227A2|2010-07-20|
    EP2352952A4|2012-03-21|
    SE0802227A1|2010-04-21|
    SE535212C2|2012-05-22|
    EP2352952A1|2011-08-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3976123A|1975-05-27|1976-08-24|Davies Thomas D|Refrigeration system for controlled heating using rejected heat of an air conditioner|
    DE2712110C2|1977-03-19|1985-02-07|Brown Boveri - York Kälte- und Klimatechnik GmbH, 6800 Mannheim|System for heating and / or cooling|
    JPH01252826A|1988-03-31|1989-10-09|Toshiba Corp|Operation control system for floor heating device|
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    DE102007009196B4|2007-02-26|2010-07-01|Kioto Clear Energy Ag|Hot water and heating system operating on the basis of renewable energy sources|CN101957034B|2010-05-14|2012-07-04|法凯涞玛冷暖设备（杭州）有限公司|Energy storage heat pump air conditioner|
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    CN102269485A|2011-07-12|2011-12-07|天津美意机电设备工程有限公司|Buried-pipe-type ground-source heat pump set|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE0802227A|SE0802227A2|2008-10-20|2008-10-20|Heat pump assembly|
    SE1150271A|SE535212C2|2008-10-20|2009-10-19|Heat pump assembly|
    PCT/SE2009/051183|WO2010047650A1|2008-10-20|2009-10-19|Heat pump apparatus|SE1150271A| SE535212C2|2008-10-20|2009-10-19|Heat pump assembly|
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