SU800527A1

SU800527A1 - Absorption-type solar cooling plant

Info

Publication number: SU800527A1
Application number: SU792758349A
Authority: SU
Inventors: Амандурды Хандурдыев; Аннадурды Какабаев
Original assignee: Туркменский Государственныйуниверситет Им. A.M.Горького
Priority date: 1979-04-24
Filing date: 1979-04-24
Publication date: 1981-01-30

Description

Изобретение относится к холодильной технике, а точнее к абсорбционным гелиохолодильным установкам.The invention relates to refrigeration, and more specifically to absorption solar refrigeration units.

Известны абсорбционные гелиохолодильные установки, содержащие генератор типа горячий ящик, сообщенный линией крепкого раствора через водяной подогреватель с абсорбером, в корпусе которого над его теплообменной поверхностью размещен испаритель, подключенный к линии циркуляционной охлаждаемой воды,снабженной насосом ИНедостатком известных установок является их малая экономичность вслед-^5 ствие высокой температуры крепкого раствора, подаваемого в абсорбер.Known absorption solar refrigeration units containing a hot-box type generator communicated by a strong solution line through a water heater with an absorber, in the case of which an evaporator is placed above its heat-exchange surface, connected to a circulating cooled water line equipped with a pump. A disadvantage of the known installations is their low cost due to 5 The high temperature of the strong solution supplied to the absorber.

Цель изобретения — повышение экономичности .The purpose of the invention is improving efficiency.

Указанная цель достигается тем, 20 что установка снабжена теплообменником-регенератором и дополнительным абсорбером, в корпусе которого, над его теплообменной поверхностью, размещен дополнительный испаритель, причем теплообменник-регенератор с дополнительным абсорбером последовательно включены в линию крепкого раствора между водяным нагревателем и первым абсорбером, а теплообменная по- верхность дополнительного абсорбера подключена к линии циркуляционной охлаждаемой воды первого испарителя с образованием замкнутого циркуляционного контура.This goal is achieved by the fact that the installation is equipped with a heat exchanger-regenerator and an additional absorber, in the casing of which, above its heat-exchange surface, an additional evaporator is placed, and the heat exchanger-regenerator with an additional absorber is sequentially connected to the strong solution line between the water heater and the first absorber, and the heat exchange surface of the additional absorber is connected to the line of circulating cooled water of the first evaporator with the formation of a closed circulation the primary circuit.

На чертеже схематически представлена предлагаемая установка.The drawing schematically shows the proposed installation.

Устройство содержит генератор 1 типа солнечный ящик, линию 2 крепкого раствора, водяной подогреватель 3, первый абсорбер 4, корпус 5, теплообменную поверхность 6 абсорбера 4, первый испаритель 7, линию 8 циркуляционной охлаждаемой воды, насос 9, теплообменник-регенератор 10, дополнительный абсорбер 11, корпус 12 дополнительного абсорбера 11, теплообменную поверхность 13 дополнительного абсорбера 11, дополнительный испаритель 14, поплавковый клапан 15, стеклянный экран 16, сборник 17 горячей воды, насос 18 слабого раствора, водоразборные краны 19 и 20 горячей воды и бак 21 крепкого раствора.The device comprises a solar box type generator 1, a strong solution line 2, a water heater 3, a first absorber 4, a housing 5, a heat exchanger surface 6 of an absorber 4, a first evaporator 7, a cooling water line 8, a pump 9, a heat exchanger-regenerator 10, an additional absorber 11, housing 12 of additional absorber 11, heat transfer surface 13 of additional absorber 11, additional evaporator 14, float valve 15, glass screen 16, hot water collector 17, weak solution pump 18, hot water taps 19 and 20 water tank 21 and the rich solution.

Установка работает следующим образом.Installation works as follows.

Слабый раствор, стекая по поверхности генератора 1, обогревается солнечной энергией через стеклянный экран 16 и обдувается наружным воздухом с малым влагосодержанием. При этом из раствора выпаривается в окружающую среду пары хладагента (воды). Оставшийся крепкий раствор сливается в бак 21 и через поплавковый клапан 15, водяной подогреватель 3 и теплообменник-регенератор 10 поступает в дополнительный абсорбер 11. Здесь крепкий раствор орошает теплообменную поверхность 13 и одновременно обогащается парами хладагента от -кипящей при глубоком вакууме в испарителе 14 воды, и несколько разбавленным стекает через вторую полость теплообменникарегенератора в первый абсорбер 4. Орошая теплообменную поверхность 6, раствор окончательно обогащается за счет поглощения паров хладагента, отходящих от испарителя 7, и слабым стекает в нижнюю часть корпуса 5, откуда насосом 18 подается в генератор 1 на выпаривание. Охлаждаемая вода в испарителе 7 подается по линии 8 к насосу 9, который ее прокачивает через теплообменную поверхность 13 снова в испаритель 7. Вода, охлажденная в испарителе 14, подается потребителю холода (не показан). Вода, проходящая теплообменную поверхность б первого абсорбера 4, поступает в водяной подогреватель 3 и горячей сливается в сборник 17 или подается непосредственно через кран 20 потребителю .A weak solution, flowing down the surface of the generator 1, is heated by solar energy through a glass screen 16 and blown by outside air with low moisture content. In this case, refrigerant vapor (water) is evaporated from the solution into the environment. The remaining strong solution is discharged into the tank 21 and through the float valve 15, the water heater 3 and the heat exchanger-regenerator 10 enters the additional absorber 11. Here, the strong solution irrigates the heat exchange surface 13 and is simultaneously enriched with refrigerant vapor from the water boiling off under the high vacuum in the evaporator 14, and drains somewhat diluted through the second cavity of the heat exchanger of the regenerator into the first absorber 4. Irrigating the heat exchange surface 6, the solution is finally enriched by absorption of refrigerant vapor, leaving them from the evaporator 7, and weak flows into the lower part of the housing 5, from which the pump 18 is supplied to the generator 1 for evaporation. The cooled water in the evaporator 7 is supplied via line 8 to the pump 9, which pumps it through the heat exchange surface 13 again to the evaporator 7. The water cooled in the evaporator 14 is supplied to the consumer (not shown). Water passing through the heat exchange surface b of the first absorber 4, enters the water heater 3 and is hot drained into the collector 17 or fed directly to the consumer via a faucet 20.

Предлагаемая установка позволяет снизить расход тепла на одновремен ное производство холодной и горячей воды.The proposed installation allows to reduce the heat consumption for the simultaneous production of cold and hot water.

Claims

The invention relates to refrigeration technology, and more specifically to absorption solar cooling systems. Absorption solar cooling systems are known, containing a hot box type generator, connected by a strong solution line through a water heater with an absorber, in the case of which an evaporator is placed above its heat exchange surface and connected to a circulating cooled water line equipped with a pump 1. A disadvantage of the known installations is their low efficiency due to the high temperature of the strong solution supplied to the absorber. The purpose of the invention is to increase efficiency. This goal is achieved by the fact that the plant is equipped with a heat exchanger-regenerator and an additional absorber, in the case of which, over its heat-exchanging surface, an additional evaporator is placed, and the heat exchanger-regenerator with an additional absorber is successively included in the line of strong solution between the water heater and the first absorber, and the heat exchange surface of the additional absorber is connected to the circulation line of the cooled water of the first evaporator with the formation of a closed circulation about contour. The drawing shows schematically the proposed installation. The device contains a solar generator type generator 1, a strong solution line 2, a water heater 3, the first absorber 4, the housing 5, the heat exchange surface 6 of the absorber 4, the first evaporator 7, the line B of the circulating cooled water, the pump 9, the heat exchanger regenerator 10, additional absorber 11, body 12 of additional absorber 11, heat exchange surface 13 of additional absorber 11, additional evaporator 14, float valve 15, glass screen 16, hot water collection 17, weak solution pump 18, water taps 19 and 20 g p and hot water tank 21, the rich liquor. The installation works as follows. The weak solution, of the stack over the surface of the generator 1, is heated by solar energy through the glass screen 16 and is blown with outside air with low moisture content. The vapor of the coolant (water) is evaporated from the solution into the environment. The remaining strong solution is discharged into the tank 21 and, through the float valve 15, the water heater 3 and the heat exchanger regenerator 10 enters the additional absorber 11. Here the strong solution irrigates the heat exchange surface 13 and at the same time enriches the vapor from the refrigerant boiling under deep vacuum. in the evaporator 14 of water, and somewhat diluted flows through the second cavity of the heat exchanger of the regenerator to the first absorber 4. After irrigating the heat exchange surface b, the solution is finally enriched due to the absorption of refrigerant vapors d boiling from evaporator 7 and weak flows into the lower part of the housing 5, from where the pump 18 is supplied to the generator 1 for evaporation. Cooled water in the evaporator 7 is supplied via a line to the pump 9, which pumps it through the heat exchange surface 13 again to the evaporator 7. Water cooled to the evaporator 14 is fed to a cold consumer (not shown). Water passing through the heat exchange surface b of the first absorber 4 enters the water preheater 3 and merges hot into the collector 17 or is fed directly through the valve 20 to the consumer. The proposed installation allows to reduce heat consumption for the simultaneous production of cold and hot water. Claims: Absorption solar cooling plant comprising a hot box type generator connected by a strong solution line through a water heater with an absorber, in the case of which an evaporator is placed above its heat exchanging surface connected to a circulating cooled water line equipped with a pump containing that, in order to increase efficiency, it is equipped with a heat exchanger-regenerator and an additional absorber, in the case of which, above its heat exchange surface, is an additional A new evaporator, the heat exchanger regenerator with an additional absorber is sequentially connected to the strong solution line with a water heater and the first absorber, and the heat exchange surface of the additional absorber is connected to the circulating cooled water line of the first evaporator to form a 3-1 closed circuit. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 498458, class, F 25 V 15/06, 1976.

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