• 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:
    The invention relates to a steam condensation plant discharged from a drying device, such as a vacuum dryer. The aim of the invention is to reduce energy costs when using water as a liquid for a liquid ring vacuum pump. The installation contains a vacuum dryer 1 equipped with a heating device 2 with a pre-switched heater 3. The dryer is connected by a steam outlet pipe 4 to a liquid ring vacuum pump 5 equipped with a drive 6 and a circulation circuit with a supply branch 7 and a discharge branch 8. The installation includes a heat exchanger 9, the heating side of which is included in the supply branch 7. The heat exchanger 9, the pump 5 and its drive 6 are covered by a heat insulating casing 12, the cavity of which communicates with the cooling side 11 of the heat exchanger 9. On the exhaust steam line 4 between the dryer and the pump 5 a vacuum rotary-spool or gas-ring pump 14 is connected, which is connected by a pipe 16 with the pump 5. Installation is possible in such a way that the heating device 2 is made in the form of sprays installed in the working cavity 26 of the dryer 1. At the same time, the heater 3 designed as a waste heat exchanger or ambient air heat. 2 hp f-ly, 2 ill.
    公开号:SU1535388A3
    申请号:SU874202308
    申请日:1987-04-07
    公开日:1990-01-07
    发明作者:Айххольц Хайнц
    申请人:Eichholz Heinz；
    IPC主号:
    专利说明:

    The invention relates to steam condensation plants discharged from an apparatus for drying, for example a vacuum dryer.
    The aim of the invention is to reduce energy costs when using water as a liquid for a liquid ring vacuum pump.
    FIG. 1 is a schematic representation of a plant for the condensation of water vapor, made as part of a vacuum dryer; figure 2 - installation diagram when performing heating devices dryers in the form of a system of nozzles.
    The steam condensation unit contains a vacuum dryer 1 equipped with a heating device 2 with heater 3 switched on. Dryer I is connected by a discharge steam line 4 to a liquid ring vacuum pump 5. Pump 5 is equipped with a drive 6 and the circulation circuit of its liquid with supply branch 7 and a branch line 8, one of which includes a heat exchanger 9. The heat exchanger 9 is made with heating 10 and cooling 1 1 sides and is connected to one of the latter with heating device 2 of dryer I. The installation contains a heat insulating casing 1 2, covering the pump 5 with the drive 6 and the heat exchanger 9. The heat exchanger 9 is connected by a cooling side 11 to the cavity of the casing 12 and is connected by the heating side 10 to the feed line 7 of the circulation circuit. A heating device 2 of the dryer 1 is included in the outflow branch 8 of the circuit. The heat insulating casing 12 is made with openings 13 for the passage of the branches 7 and 8 of the circuit and the steam line 4.
    i
    On the exhaust pipe 4 between
    the dryer 1 and the liquid ring pump 5 additionally include a vacuum rotary spool or gas ring pump 14. The latter has its own drive 15 and is connected to the liquid ring pump 5 by pipe 16. A fan 17 can be installed inside the casing 12, which creates the required air movement through the cooling side 11 of the heat exchanger 9.
    In the open branch beyond the pre-included heating of the GRS M can be installed
    five
    0
    five
    0
    five
    0
    five
    0
    five
    flax surge tank 18 with air holes 19.
    The dryer circuit (FIG. 0) may include during drying, for example, a granulate of synthetic material, a loading part 20, a transporting tube 21 with a screw 22 rotating in it and an collecting device 23, and the heating device 2 may be made in the form of a shirt 24 covering pipe 21.
    It is possible to perform the installation in such a way that the heating device 2 of the dryer 1 is made in the form of a system of nozzles 25 installed in its working cavity 26 (FIG. 2). The pre-activated heater 3 is in the form of a waste heat exchanger 27 of waste heat or environmental heat . The nozzles 25 are connected to a manifold 28, which is connected by a branch pipe 29 to an inlet branch 7 of the circulation circuit. The utilizer 27 of the waste heat or the heat of the ambient air is included in the circulation circuit 30 with the pump 31 and communicates at the outlet with the collector 28.
    The installation works as follows.
    Water of relatively low temperature flows through the supply branch 7 to the heat exchanger 9, where it is heated by supplying warm air blown by the fan 17 along the cooling side 11 of the heat exchanger 9. The air is heated by transferring the heat generated by the pumps 14 and 5 and their drives 15 and 6. Next, the water enters the liquid ring vacuum pump 5 and is directed along the discharge branch 8 into the space of the jacket 24 of the heating device 2, giving up its heat to the material to be dried. For heating during start-up, as well as for obtaining additional heat, a pre-heated heater 3 is installed in the inlet branch 8, for example, in the electric heating coil installed inside the branch 8. Air is removed from the water circuit through a surge tank 18 and apertures 19 for air release.
    The water vapor formed during the heating of the material to be dried in the air is discharged from the working cavity 26 of the dryer 1 along the water vapor treatment solution 4,
    This low-pressure steam enters the vacuum pump 14 and from it under a slightly higher pressure enters through the pipeline 16 into the liquid-ring vacuum pump 5. In it, water vapor condenses into water flowing through the pump, and its heat passes to water, which is suitably heated.
    The material to be dried enters through the loading part 20 into the transporting pipe 21, through which it is moved by means of the rotating screw auger 22. The dried bulk material is withdrawn from the dryer through the collecting device 23.
    When performing the heating device 2 in the form of a system of nozzles 25 installed in the working cavity 26 of the dryer 1 (FIG. 2), the device operates as follows. The selection and movement of water vapor occurs in the same way as previously described. Water vapor in the cavity 26 is also formed by spraying water using a spray system 25. Heated in a liquid ring pump, water is supplied along the outlet branch 8 to the heating device 2, where it releases its heat for heating purposes and enters cooled in the supply branch 7 circulating circuit.
    The discharge pipe 29 replaces the evaporated amount of water equal to the amount of steam discharged through the steam line A. The pump 31, located under the dryer 1, supplies non-evaporated condensed water to cavity 26 of the waste heat exchanger 27. This water in the heat exchanger 27 is heated heat bill of ambient air or waste heat. From the utilizer 27, the water enters the collector 28 and the nebulizers 25. As a result, the water vapor generated in the cavity 26 receives a relatively large amount of energy, which in a known manner is converted into thermal energy suitable for heating purposes.
    When using the proposed device, the greatest advantages are obtained if one
    temporarily required vacuum and heat energy; rational can be its use according to the scheme of the heat pump (figure 2). An important advantage is the use of water as a liquid for a liquid ring vacuum pump, which eliminates potentially hazardous refrigerants.
    权利要求:
    Claims (3)
    [1]
    Invention Formula
    I. Installation of water vapor condensation, containing a vacuum dryer equipped with a heating device with a pre-switched heater and connected with a discharge steam line to a liquid-lance vacuum pump equipped with a drive and circulation circuit of its liquid with supply and discharge branches, into one of the which includes a heat exchanger made with heating and cooling sides and connected with the heating device of the dryer by one of the latter, in order to reduce energy costs when using water as a fluid for the pump, it additionally contains a heat insulating jacket, covering the pump with a drive and a heat exchanger communicated by the cooling side to the housing cavity and switched on by the heating side
    into the inlet branch of the contour, into the outlet branch of which the heating device of the dryer is included, the heat insulating casing is made with openings for the passage of the contour branches and the steam line.
    [2]
    2. Installation according to claim 1, characterized in that a vacuum rotary slide valve or gas ring pump is additionally included in the exhaust steam pipe between the dryer and the liquid ring pump.
    [3]
    3. Installation on PP. 1 and 2, characterized in that the heating device of the dryer is made in the form
    the systems of sprayers installed in its working cavity, and the pre-included heater - in the form of a waste heat exchanger or the heat of the environment.
    类似技术:
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    SU1041837A1|1983-09-15|Drying plant
    同族专利:
    公开号 | 公开日
    US4753016A|1988-06-28|
    DE3611773A1|1987-10-15|
    JPH0817883B2|1996-02-28|
    DE3783636D1|1993-03-04|
    AT84870T|1993-02-15|
    CN1017967B|1992-08-26|
    EP0240793B1|1993-01-20|
    CN87102717A|1988-01-13|
    DE3611773C2|1988-05-11|
    JPS62244401A|1987-10-24|
    EP0240793A3|1990-06-06|
    EP0240793A2|1987-10-14|
    CA1291871C|1991-11-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE891979C|1953-08-20|Stuttgart-Lederberg Dipl.-Ing. Richard Schiel|Process for the operation of heated vacuum dryers and device for its implementation|
    US2021012A|1932-10-27|1935-11-12|Swann Res Inc|Process for production of acid alkali-metal pyrophosphates|
    US2478889A|1942-10-29|1949-08-16|Emulsol Corp|Method and apparatus for cooling hot hygroscopic solids|
    FR1161753A|1955-10-08|1958-09-04|Drying facility|
    US3392455A|1965-11-16|1968-07-16|Blaw Knox Co|Variable pressure solvent stripping system|
    US3605273A|1970-01-16|1971-09-20|Nat Distillers Chem Corp|Continuous process and apparatus for drying titanium sponge|
    IT1083106B|1977-05-17|1985-05-21|Pagnozzi Vincenzo|EMPTY DRYER PARTICULARLY FOR TIMBER|
    HU184671B|1979-03-21|1984-09-28|Richter Gedeon Vegyeszet|Apparatus for drying and granulating wet pastelike and/or fusible materials|
    US4290269A|1979-10-09|1981-09-22|Modo-Chemetics Ab|Process for the efficient conversion of water-containing organic materials as fuels into energy|
    US4331085A|1980-05-09|1982-05-25|Tyer Robert C|Exit gas control for flame stabilization and performance tuning of starved-air auger combustor|
    FR2510736B1|1981-07-28|1986-07-18|Beghin Say Sa|VAPOR RECOMPRESSION DRYING PROCESS|DE3803109C2|1988-02-03|1998-10-08|Eirich Maschf Gustav|Process for drying moist material|
    DD284662A5|1988-08-26|1990-11-21|Alex. Friedmann Kg,At|METHOD AND DEVICE FOR THICKNESSING SULFUR SUBSTANCES|
    DE4408147C1|1994-03-11|1995-08-24|Heinz Eichholz|Vacuum drying process and device for carrying it out|
    FI943225A0|1994-07-06|1994-07-06|High Speed Tech Ltd Oy|Apparatur Foer undertrycktorkning av materialet skaerskild virke ellyknand|
    US5916249A|1997-04-23|1999-06-29|Baker; H. Wayne|Method and apparatus for the recovery of ammonia refrigerant|
    DE19734212B4|1997-08-07|2007-10-11|Solar Und Vakuum TechnologieA.G.|Vacuum drying device|
    DE10257769A1|2002-12-10|2004-06-24|Wagner Magnete Gmbh & Co. Kg|Distilling or separating moisture from feed containing moisture involves using distillate from condenser as ring liquid for liquid ring vacuum pump|
    UA81138C2|2005-07-27|2007-12-10|Bielov Oleksandr Pavlovych|Apparatus for thermo-vacuum drying|
    WO2009135149A1|2008-05-01|2009-11-05|Jepson W Paul|Evaporative pump apparatus|
    KR101485850B1|2008-09-10|2015-01-26|삼성전자 주식회사|Clothing dryer|
    CN101671104B|2008-09-12|2011-08-17|王文准|Vacuum boiling sludge dewatering and drying method and system|
    CN102405128B|2009-04-21|2015-01-21|株式会社松井制作所|Drying device under reduced pressure for plastic forming material|
    CN102311308B|2010-07-07|2014-01-01|中国石油化工股份有限公司|Device for concentrating ethanol through ultrasonic atomization and method for concentrating ethanol|
    CN101922852A|2010-07-09|2010-12-22|丁鹏坤|Vacuum drying technology|
    GB201603952D0|2016-03-08|2016-04-20|Energy Recovery Systems Ltd|Methods and apparatus for treating waste|
    US20200200475A1|2017-05-16|2020-06-25|Enwave Corporation|Dehydration below the triple point of water|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3611773A|DE3611773C2|1986-04-08|1986-04-08|
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