CN1192527A - Evaporation and sorption device - Google Patents
Evaporation and sorption device Download PDFInfo
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- CN1192527A CN1192527A CN98111829A CN98111829A CN1192527A CN 1192527 A CN1192527 A CN 1192527A CN 98111829 A CN98111829 A CN 98111829A CN 98111829 A CN98111829 A CN 98111829A CN 1192527 A CN1192527 A CN 1192527A
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- low pressure
- pressure cavity
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- heat exchanger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Abstract
It is composed of two independent low pressure chambers, each of which is equipped with evaporator and normal absorber. The evaporator is composed of sprayer, eraporation area and cooler container. The absorbing heat exchangers in each chamber are connected in series or parallel. The cooler circulation system are connected in series. Said apparatus adopts different evaporation pressures in the low pressure chamber and eliminates the tube bundle of the traditional evaporation heat exchanger to implement the step utilization of the concn. of the actuating medium, thus the efficiency of the set is improved, mean-while the productive cost is greatly lowered and the set volume is reduced.
Description
The present invention relates to absorption refrigeration equipment, especially the refrigerating circulatory device in the absorption refrigeration unit.
Existing absorption refrigeration unit evaporation absorption cycle apparatus, its structure is to be provided with one group of evaporimeter and absorber in unit main cylinder low pressure vessel, they place the both sides of low pressure vessel respectively.Evaporimeter drenches device, evaporating heat exchanger, refrigerant container by cloth to be formed; Absorber is made up of liquid spray device, absorption heat exchanger, solution container.Chilled water in the evaporating heat exchanger leads to air heat exchanger circulation heat absorption, and the cooling water that absorbs in the heat exchanger leads to the cooling tower heat release.When refrigeration machine is worked, because cryogen boiling temperature under low pressure is very low, therefore when spraying on the evaporating heat exchanger from the cryogen of condenser in the low pressure vessel, just evaporate tempestuously, absorb a large amount of heats that chilled water brings in the evaporating heat exchanger from room air, produce a large amount of refrigerant vapours; And the intrinsic characteristic of working medium solution of absorber spray is to absorb cryogen in large quantities, therefore coming the refrigerant vapour of flash-pot to be absorbed the working medium solution that sprays in the device absorbs rapidly, discharge a large amount of heats, the cooling water that this heat is absorbed in the heat exchanger is taken out of outside the unit, is discharged in the Nature.In low pressure vessel, chilled water, cooling water, working medium solution, cryogen constantly circulate, spray the purpose that has just reached refrigeration.
Existing Absorption Refrigerator has only one group of evaporimeter and absorber, and therefore the cyclic process of evaporation and absorption can only be carried out under an evaporating pressure and evaporating temperature.As being example with the lithium-bromide absorption-type refrigerating machine: the concentration of working medium solution is subjected to the restriction of crystallization temperature can not be too high, and solution concentration is too high, and solution will crystallization in cyclic process, influences the normal operation of unit.And the working medium solution that absorption process ends is subjected to its concentration that limits of refrigerant water outlet temperature can not be low again, therefore, the venting scope of existing Absorption Refrigerator is narrower, about 4-5%, make the circulating ratio height of working medium solution, charging amount is big, unit efficiency is lower, the heat exchange area of unit is big, manufacturing cost is high, and in economic limit, unit only can provide and be higher than 7 ℃ chilled water.
The cryogen of above-mentioned evaporating and absorbing unit and chilled water are the tube wall heat exchange by evaporating heat exchanger, therefore just need certain heat transfer temperature difference, thereby reduced heat transfer efficiency, simultaneously this structure also needs a large amount of heat exchanger tubes, and complex structure, volume is big, manufacturing cost is also high.
The purpose of this invention is to provide a kind of wider range of exitting, efficient height, evaporation and adsorption arrangement for absorption refrigerating machine that cost is low.
To achieve these goals, technical scheme of the present invention is: a kind of evaporation and sorption device, and it is made up of low pressure vessel, evaporimeter and absorber; Evaporimeter drenches device, evaporating area and refrigerant container by cloth to be formed, and absorber is made up of liquid spray device, absorption heat exchanger, solution container; Low pressure vessel is divided into two or more low pressure cavity volumes independent of each other with dividing plate, in each low pressure cavity volume evaporimeter and absorber is set all.Cloth in each low pressure cavity volume drenches device and becomes series connection with refrigerant container, refrigerant container in the first low pressure cavity volume connects air heat exchanger by cryogenic fluid pump, the cloth that connects then in the second low pressure cavity volume drenches device, the cloth that also can directly connect in the second low pressure cavity volume drenches device, and the refrigerant container of the second low pressure cavity volume drenches device by the cloth that cryogenic fluid pump connects the first low pressure cavity volume; Absorption heat exchanger in each low pressure cavity volume becomes series connection; The cooling water intake that absorbs heat exchanger in the second low pressure cavity volume connects the sub-cooled water pipe, the cooling water outlet that absorbs heat exchanger in the second low pressure cavity volume connects the cooling water intake that absorbs heat exchanger in the first low pressure cavity volume, and the cooling water outlet that absorbs heat exchanger in the first low pressure cavity volume connects the high-temperature cooling water pipe; The liquid spray device of the first low pressure cavity volume is met sb. at the airport and is organized the working medium solution discharge pipe of generator, and the solution container of the first low pressure cavity volume connects the liquid spray device of the second low pressure cavity volume by solution pump.The solution container of the second low pressure cavity volume is met sb. at the airport by solution pump and is organized the working medium solution feed tube of generator.Absorption heat exchanger in each low pressure cavity volume also can become and connect, and the water inlet that respectively absorb heat exchanger this moment connects the sub-cooled water pipe, and each delivery port that absorbs heat exchanger connects the high-temperature cooling water pipe.Evaporating area in the low pressure cavity volume can be the space of no evaporation and heat-exchange tube bank, also can be the big evaporative component of evaporation surface, can also be conventional evaporating heat exchanger.
When moving, in low pressure cavity volume evaporating area, gasification forms a large amount of refrigerant vapours rapidly from the cryogen of unit condenser spray.The working medium solution that is absorbed in the device absorbs, take away a large amount of heats, cryogen self temperature is reduced significantly, cryogen after temperature reduces flows in the refrigerant container, the cloth that enters another low pressure cavity volume drenches device and continues the spraying and sprinkling evaporation cooling, again the cryogen after the cooling is delivered to air heat exchanger by cryogenic fluid pump, and displacement raises from temperature behind the heat of air, and then is returned to the cloth pouring device of low pressure cavity volume and from the circulated sprinkling evaporative cooling together of the cryogen in the condenser.The cooling water that absorbs in the heat exchanger is constantly taken two systemic heats of low pressure cavity volume outside the unit out of.Circulation has so again and again just reached the purpose of freezing.
Because the present invention is provided with two groups or more independently evaporimeter and absorber in refrigeration unit, in each low pressure cavity volume, can reach different evaporating pressure and evaporating temperatures respectively by absorbing and the setting of cooling water flow path and the adjustment of working medium solution concentration of heat exchanger heat exchange area, get low evaporating pressure as high concentration end in lithium-bromide absorption-type refrigerating machine at working medium solution, the low concentration end is got high evaporation pressure, this has reached cascade utilization with regard to the concentration that makes working medium solution, thereby the venting scope of refrigeration unit is enhanced about more than once, can reaches 11-12%.Because this device has been cancelled conventional evaporation and heat-exchange tube bank in evaporimeter unit volume and weight are reduced, efficient improves, and cost reduces greatly.
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the operation logic figure when evaporating area is the space in the two low pressure cavity volumes.
Fig. 2 is the operation logic figure when evaporating area one is evaporating heat exchanger for space one in the two low pressure cavity volumes.
As shown in Figure 1, the low pressure vessel 22 of absorption refrigeration unit is divided into low pressure cavity volume 1 and low pressure cavity volume 2 by dividing plate 9.Drench the evaporimeter that device 3, evaporating area 4 and refrigerant container 5 are formed by the absorber of forming by liquid spray device 6, absorption heat exchanger 7 and solution container 8 with by cloth in the low pressure cavity volume 1.Drench the evaporimeter that device 10, evaporating area 11 and refrigerant container 12, cryogen shower 21 are formed by the absorber of forming by liquid spray device 13, absorption heat exchanger 14 and solution container 15 with by cloth in the low pressure cavity volume 2.Part 7 and part 14 series connections, the delivery port of part 7 connects the high-temperature cooling water pipe, the delivery port of the water inlet fitting 14 of part 7, the water inlet of part 14 connects the sub-cooled water pipe.Part 6 is met sb. at the airport and is organized the working medium solution discharge pipe of generator, and part 8 is through solution pump 18 fittings 13, and part 12 is through cryogenic fluid pump 17 fittings 3, and part 5 is after cryogenic fluid pump 19 connects air heat exchanger 20, and fitting 10 again, and part 15 is met sb. at the airport through solution pump 16 and organized the working medium solution feed tube of generator.
During the operation of absorption refrigeration unit, part 21 is the 11 spray cryogens of the evaporating space in part 2 constantly, under low-pressure state, the cryogen evaporation of vaporizing rapidly, the working medium solution that is sprayed by part 13 absorbs, remaining refrigerant temperature reduces inflow part 12 rapidly, part 17 with the cryogen of lower temperature pump in the part 1 part 3 again spray in evaporating space 4, the cryogen of lower temperature is carburation by evaporation again, the working medium solution from generator that is sprayed by part 6 absorbs, remaining refrigerant temperature reduces again in the inflow part 5, and part 19 pumps into part 20 with cryogenic coolant.In part 20, chilled water and cryogenic coolant have carried out sufficient heat exchange, are taken away by cryogen from the heat in the refrigerant in the room air heat exchanger, and the low temperature chilled water interior air heat exchanger of inlet chamber again carries out heat exchange.The cryogen that has carried out the temperature rising after the heat exchange enters part 10 circulated sprinklings again, carburation by evaporation cooling in two evaporating area in part 1, part 2.Cooling water is taken the heat in the absorber out of unit and is discharged outward.Absorb working medium solution behind the refrigerant vapour through twice spray, flow into part 15, part 16 pumps into the generator feed tube with this working medium solution, and then through generator discharge circulated sprinkling in back takes place.Circularly cooling in the present embodiment is identical with conventional unit with heat exchange principle, different is that cryogen enters the heat in the heat exchanger exchange chilled water after twice cooling, make the venting scope of refrigeration unit wideer, efficient is higher, and because no evaporating heat exchanger tube bank in evaporating area, save a large amount of copper pipes, reduced manufacturing cost, dwindled unit volume.Part 7 and part 14 also can in parallel use, and cooling water advances from the water inlet of part 7 and part 14 simultaneously, go out from the delivery port of part 7 and part 14 simultaneously again then.
Mandatory declaration be that present embodiment also can save heat exchanger 20, directly cryogen is gone into indoor air heat exchanger heat exchange as refrigerant pump, and then it is pumped in the part 10 sprays circulating and evaporating.As shown in phantom in FIG..
As shown in Figure 2, the low pressure vessel 22 of absorption refrigeration unit is divided into low pressure cavity volume 1 and low pressure cavity volume 2 by dividing plate 9.Absorber of being made up of liquid spray device 6, absorption heat exchanger 7 and solution container 8 in the low pressure cavity volume 1 and the evaporimeter of being made up of cloth pouring device 3, evaporating area 4 and refrigerant container 5, cryogen shower 21 drench the evaporimeter that device 10, evaporating heat exchanger 11 and refrigerant container 12 are formed by the absorber of being made up of liquid spray device 13, absorption heat exchanger 14 and solution container 15 with by cloth in the low pressure cavity volume 2.Part 7 and part 14 series connections, the delivery port of part 7 connects the high-temperature cooling water pipe, the delivery port of the water inlet fitting 14 of part 7, the water inlet of part 14 connects the sub-cooled water pipe.Part 6 is met sb. at the airport and is organized the working medium solution discharge pipe of generator, and part 8 is through solution pump 18 fittings 13, and part 12 is through cryogenic fluid pump 17 fittings 3, and part 5 is through cryogenic fluid pump 19 fittings 10, and part 15 is met sb. at the airport through solution pump 16 and organized the working medium solution feed tube of generator.Part 11 connects air heat exchanger.
During the operation of absorption refrigeration unit, part 21 is the 4 spray cryogens of the evaporating space in part 1 constantly, under low-pressure state, the cryogen evaporation of vaporizing rapidly, the working medium solution that is sprayed by part 6 absorbs, remaining refrigerant temperature reduces inflow part 5 rapidly, part 19 sprays the part 10 that cryogenic coolant pumps in the part 2 in part 11 again, the cryogen of low temperature has absorbed in the evaporating heat exchanger behind the chilled water heat, and temperature raises, and the sensible heat of cryogen is utilized, when refrigerant temperature rises to saturation temperature under the evaporating pressure, the cryogen evaporation that comes to life produces a large amount of refrigerant vapours, with latent heat mode absorption refrigeration.Refrigerant vapour is absorbed by the working medium solution that part 13 sprays, and remaining cryogen flows in the part 12, and part 17 pumps into the cooling of part 3 circulated sprinklings with cryogen.Cooling water is taken the heat in the absorber out of unit and is discharged outward.Absorb working medium solution behind the refrigerant vapour through twice spray, flow into part 15, part 16 pumps into the generator feed tube with this working medium solution, and then through generator discharge circulated sprinkling in back takes place.
The circularly cooling of present embodiment is identical with conventional unit with heat exchange principle, and different is that the cryogenic coolant that sprays out from part 10 has a sensible heat utilization process, and the temperature difference of effectively utilizing of evaporating heat exchanger is strengthened.Because no evaporating heat exchanger tube bank in part 1 has been saved copper pipe, reduced cost, dwindled unit volume simultaneously.
Part 7 and part 14 also can in parallel use in the present embodiment, and cooling water advances from the water inlet of part 7 and part 14 simultaneously, go out from the delivery port of part 7 and part 14 simultaneously again then.
Evaporating area in this device can be a space, also can be the big evaporative component of evaporation surface, can also be conventional evaporating heat exchanger.
Low pressure cavity volume in this device can be separated by the low pressure vessel of unit, also can be low pressure cavity independently.
Claims (4)
1. an evaporation and sorption device is made up of low pressure vessel, evaporimeter and absorber etc., and absorber is absorbed heat exchanger and solution container and formed by liquid spray device.It is characterized in that: low pressure vessel is divided into two or more low pressure cavity volumes independent of each other with dividing plate, in each low pressure cavity volume evaporimeter and absorber is set all; Evaporimeter drenches device, evaporating area and refrigerant container by cloth to be formed; Cloth in each low pressure cavity volume drenches device and becomes series connection with refrigerant container, and the refrigerant container in the first low pressure cavity volume connects air heat exchanger, and the cloth that connects then in the second low pressure cavity volume drenches device, and the cloth that the refrigerant container of the second low pressure cavity volume connects the first low pressure cavity volume drenches device; Absorption heat exchanger in each low pressure cavity volume becomes series connection; The cooling water intake that absorbs heat exchanger in the second low pressure cavity volume connects the sub-cooled water pipe, the cooling water outlet that absorbs heat exchanger in the second low pressure cavity volume connects the cooling water intake that absorbs heat exchanger in the first low pressure cavity volume, and the cooling water outlet that absorbs heat exchanger in the first low pressure cavity volume connects the high-temperature cooling water pipe; The liquid spray device of the first low pressure cavity volume is met sb. at the airport and is organized the working medium solution discharge pipe of generator, and the solution container of the first low pressure cavity volume connects the liquid spray device of the second low pressure cavity volume.The solution container of the second low pressure cavity volume is met sb. at the airport and is organized the working medium solution feed tube of generator.
2. evaporation and sorption device according to claim 1, it is characterized in that: the absorption heat exchanger in described each low pressure cavity volume also can become and connect, each water inlet that absorbs heat exchanger connects the sub-cooled water pipe, and each delivery port that absorbs heat exchanger connects the high-temperature cooling water pipe.
3. evaporation and sorption device according to claim 1 is characterized in that: described evaporating area can be the space, also can be the big evaporative component of evaporation surface, can also be conventional evaporating heat exchanger.
4. evaporation and sorption device according to claim 1 is characterized in that: described low pressure cavity volume also can be single independently low pressure cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111829A CN1192527A (en) | 1998-01-22 | 1998-01-22 | Evaporation and sorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111829A CN1192527A (en) | 1998-01-22 | 1998-01-22 | Evaporation and sorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1192527A true CN1192527A (en) | 1998-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98111829A Pending CN1192527A (en) | 1998-01-22 | 1998-01-22 | Evaporation and sorption device |
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| Country | Link |
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| CN (1) | CN1192527A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095273A (en) * | 2011-03-01 | 2011-06-15 | 李华玉 | Double generation-diabsorption system and backheating type second absorption heat pump |
| CN102519166A (en) * | 2011-11-29 | 2012-06-27 | 李华玉 | First-class absorption heat pump with section absorption |
| CN101306543B (en) * | 2007-05-18 | 2012-07-25 | 童飞雁 | Energy and water saving device of ''cold-hot-cold'' gluing technique |
| CN106322594A (en) * | 2015-07-03 | 2017-01-11 | 广州市华德工业有限公司 | Evaporative type cooling device |
-
1998
- 1998-01-22 CN CN98111829A patent/CN1192527A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306543B (en) * | 2007-05-18 | 2012-07-25 | 童飞雁 | Energy and water saving device of ''cold-hot-cold'' gluing technique |
| CN102095273A (en) * | 2011-03-01 | 2011-06-15 | 李华玉 | Double generation-diabsorption system and backheating type second absorption heat pump |
| CN102095273B (en) * | 2011-03-01 | 2013-06-05 | 李华玉 | Double generation-diabsorption system and backheating type second absorption heat pump |
| CN102519166A (en) * | 2011-11-29 | 2012-06-27 | 李华玉 | First-class absorption heat pump with section absorption |
| CN102519166B (en) * | 2011-11-29 | 2014-03-12 | 李华玉 | First-class absorption heat pump with section absorption |
| CN106322594A (en) * | 2015-07-03 | 2017-01-11 | 广州市华德工业有限公司 | Evaporative type cooling device |
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