CN101586890B - Absorption heating system and absorption heating method - Google Patents

Absorption heating system and absorption heating method Download PDF

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Publication number
CN101586890B
CN101586890B CN2008101120109A CN200810112010A CN101586890B CN 101586890 B CN101586890 B CN 101586890B CN 2008101120109 A CN2008101120109 A CN 2008101120109A CN 200810112010 A CN200810112010 A CN 200810112010A CN 101586890 B CN101586890 B CN 101586890B
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absorber
generator
absorbent solution
absorption
absorbent
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CN101586890A (en
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苏庆泉
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Priority to PCT/CN2009/000538 priority patent/WO2009140858A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B35/00Boiler-absorbers, i.e. boilers usable for absorption or adsorption
    • F25B35/02Boiler-absorbers, i.e. boilers usable for absorption or adsorption using a liquid as sorbent, e.g. brine
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

The invention relates to an absorption heating system and an absorption heating method. The heating system comprises a generator, an absorber, a steam channel and an absorbent solution conveying device, wherein the generator is provided with a generation heat exchanger inside, and absorbent solution is filled in the generator; the absorber is provided with an absorption heat exchanger inside, and absorbent solution is filled in the absorber; the steam channel is communicated with the generator and the absorber; the concentration of the absorbent solution in the generator is lower than that of the absorbent solution in the absorber; and the absorbent solution conveying device is connected to the generator and the absorber and is used for conveying the absorbent solution between the generator and the absorber. An external heat source heats the low-concentration absorbent solution in the generator to generate working substance steam, working substance steam in the absorber is absorbed by the high-concentration absorbent solution, and absorption heat is released at high temperature so as to output high-grade heat. The heating system and the heating method have the advantages of simple structure and high heating coefficient.

Description

Absorption heating system and heat supply method
Technical field
The present invention relates to a kind of heat supply process of Thermal Power Engineering Field, particularly a kind of absorption heating system and heat supply method of forming by two unit.
Background technology
See also shown in Figure 1, existing absorption heat pump circulating heat supply system mainly comprises: in establish generator 11 that heat exchanger 110 takes place, in establish condensing heat exchanger 120 condenser 12, in establish evaporating heat exchanger 130 evaporimeter 13 and in establish the absorber 14 that absorbs heat exchanger 140, also have absorbent solution as auxiliary equipment in addition from heat exchanger 150, absorbent solution pump and flow controller (not shown) etc.Generator 11 links to each other by vapor passageway 19 with condenser 12, and evaporimeter 13 links to each other by vapor passageway 18 with absorber 14.Absorbent solution circulates between generator 11 and absorber 14 by absorbent solution pipeline 16 and 15.
The course of work of existing absorption heat pump circulating heat supply system comprises: (1) utilizes driving heat source (as steam, hot water and combustion gas etc.) to heat in generator 11 from what absorber 14 transported to have a certain density lithium-bromide solution, and the water that bromizates in the lithium solution is evaporated, and the dense lithium-bromide solution of formation is recycled in the absorber 14.(2) steam enters in the condenser 12 by vapor passageway 19, and the cooling working medium in the heat exchanger 120 that is condensed again is condensed into condensed water.(3) this condensed water enters in the evaporimeter 13 through condensing water conduit 17, feeds same or another driving heat source in evaporating heat exchanger 130, makes the condensed water from condenser become steam.(4) above-mentioned steam enters generator 14 by vapor passageway 18, absorbed and produced from the dense lithium-bromide solution in the generator 11 and absorbed heat, the concentration of lithium-bromide solution reduces simultaneously, the lithium-bromide solution of low concentration is circulated in the generator 11, described absorption heat is used to the working medium (being generally water) in the heating heat exchanger 140, this working medium temperature is improved, as outwards exporting (when working medium is water than the more high-grade heat energy of above-mentioned driving heat source, form output that can steam), reach the purpose that this absorption heat pump circulating heat supply system is outwards exported heat energy.
Above-described existing absorption heat pump circulating system, for realizing in the generator 11 lithium-bromide solution being concentrated, must heat by 110 pairs of lithium-bromide solutions of heat exchanger take place, obtaining the lithium-bromide solution of high concentration, so this heat pump circulating system must be a driving heat source from the high temperature heat source of outside in the generator input.This has not only limited the raising of the coefficient of heat supply of this heat pump circulating system, also in the area of thermal source resource shortage, has limited the application of this heat pump circulating system.
Summary of the invention
Main purpose of the present invention is to overcome the problem that existing absorption heat pump circulating heat supply system exists, and provide a kind of absorption heating system and heat supply method, technical problem to be solved is to make it adopt two unit to realize absorption external heat supply, simplify heating system structure, be suitable for practicality more, and have the value on the industry.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of absorption heating system that the present invention proposes, it comprises: generator, be provided with the generation heat exchanger in it, and be filled with absorbent solution in this generator; Absorber is provided with the absorption heat exchanger in it, be filled with absorbent solution in this absorber; And steam channel, be communicated with described generator and described absorber; The concentration of absorbing of absorbent solution is lower than the concentration of absorbing of absorbent solution in the described absorber in the described generator.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Preferably, the absorption heating system of the embodiment of the invention, it also comprises the absorbent solution conveying device, is connected in described generator and described absorber, is used for carrying absorbent solution between generator and absorber.
Preferably, the absorption heating system of the embodiment of the invention, wherein said absorbent solution is made up of working medium and absorbent, and described working medium is the mixture of water, methyl alcohol and ethanol one of them or several materials; Described absorbent is LiBr, LiCl, LiNO 3, ZnCl 2And CaCl 2The mixture of one of them or several materials.
Preferably, the absorption heating system of the embodiment of the invention, wherein said absorber places generator inside, and perhaps generator places described absorber inside.
Preferably, the absorption heating system of the embodiment of the invention, wherein said generator and absorber have a shared sidewall, and described steam channel is the through hole that is opened on this sidewall.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of absorption heating method that the present invention proposes, it adopts above-mentioned absorption heating system, and this method comprises: in generator, heat lower concentration absorbing solution and produce working substance steam with low-temperature heat source; Above-mentioned working substance steam is delivered in the absorber by steam channel, and the high concentration absorbent solution that described working substance steam is absorbed in the device absorbs, and discharges the absorption heat of high temperature; And in absorber, carry out heat exchange, with above-mentioned outwards output of absorption heat.
Preferably, the absorption heating method of the embodiment of the invention, it also comprises: when the difference of absorbent solution concentration in the generator and the absorbent solution concentration in the absorber during less than preset value, stop to add the absorbent solution in the heater; Absorbent solution in the generator is delivered in the absorber; Absorbent solution in the cooling absorber makes it produce the absorbent crystallization; Supernatant in the absorber is delivered in the generator.
Preferably, the absorption heating method of the embodiment of the invention, wherein said generator is identical with the interior pressure of absorber.
Preferably, the absorption heating method of the embodiment of the invention, the absorbent solution in the wherein said absorber are saturated solution.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the heating system that the present invention proposes is compared with existing absorption heating system, and is simple in structure, is convenient to make and safeguard.In addition, the concentration difference of the absorbent solution in generator and the absorber can keep bigger value, thereby can make the thermal source grade of external output improve manyly, can obtain bigger temperature rise.Heating system of the present invention and heat supply method, because it does not establish evaporimeter and condenser, it only has low-temperature heat source to drop into process and a high temperature heat source output procedure and does not have cooling procedure, thereby has apparently higher than the coefficient of heat supply of existing absorption heat pump circulating system.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the flow chart of existing absorption heat pump circulating system.
Fig. 2 is the structural representation of the absorption heating system of the embodiment of the invention 1.
Fig. 3 is the structural representation of the absorption heating system of the embodiment of the invention 2.
Fig. 4 is the structural representation of the absorption heating system of the embodiment of the invention 3.
Fig. 5 is the flow chart of absorbent solution regenerative process in the heat supply method of the embodiment of the invention 4.
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment of absorption heating system, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Seeing also shown in Figure 2ly, is the structural representation of the absorption heating system of the embodiment of the invention 1.This heating system comprises: generator 21, absorber 22, steam channel 23 and liquid-feeding pump 24.Be filled with absorbent solution in the described generator 21, this absorbent solution is made up of working medium and absorbent.Be provided with in generator 21 heat exchanger 25 takes place, heat exchanger 25 takes place and connects outside low-temperature heat source in this, is used to heat absorbent solution.Be filled with absorbent solution in the described absorber 22, its working medium and absorbent are identical with absorbent solution in the generator 21, but its concentration of absorbing is higher than the concentration of absorbing of absorbent solution in the generator 21, preferable, absorbent solution in its absorber 22 is saturated solution (perhaps supersaturated solution, i.e. coexistence has the absorbent crystallization).Be provided with absorption heat exchanger 26 in absorber 22, this absorption heat exchanger 26 is used for that the absorption heat of absorber 22 is passed to the outside working medium (water, perhaps heating agent) that absorbs in the heat exchanger 26 to be used for the user.Described steam channel 23 is connected in described generator 21 and absorber 22, is used for the working substance steam that generator 21 produces is transported in the absorber 22.Described liquid-feeding pump 24 is connected in described generator 21 and absorber 22 by pipeline, is used for carrying absorbent solution between generator 21 and absorber 22.The course of work of the absorption heating system of present embodiment is, outside low-temperature heat source adds absorbent solution in the heater 21 by heat exchanger 21 takes place, make it produce working substance steam, this steam enters into absorber (as shown in phantom in FIG.) by jet chimney 23, because the concentration of the absorbent solution in the absorber 22 is higher than the concentration of absorbent solution in the generator 21, so under isobaric condition, absorbent solution in the absorber 22 can absorb the working substance steam that comes from generator 21 under higher temperature, absorb heat thereby discharge under this higher temperature.Outside working medium of feeding and absorbent solution are carried out heat exchange in absorbing heat exchanger 22, thereby the above-mentioned absorption torrid zone can be gone out absorber, thereby reach the purpose of outside heat supply.In the above-mentioned absorbent solution, described working medium is the mixture of water, methyl alcohol and ethanol one of them or several materials; Described absorbent is LiBr, LiCl, LiNO 3, ZnCl 2And CaCl 2The mixture of one of them or several materials.
Seeing also shown in Figure 3ly, is the structural representation of the absorption heating system of the embodiment of the invention 2.This heating system comprises: generator 31, absorber 32, steam channel 33 and liquid-feeding pump 34, the effect of above-mentioned each parts is identical with embodiment 1.Be filled with absorbent solution in the described generator 31, and be provided with generation heat exchanger 35.Be filled with absorbent solution in the described absorber 32, its concentration of absorbing is higher than the concentration of absorbing of absorbent solution in the generator 31, is provided with in the absorber 32 to absorb heat exchanger 26.
Described generator 31 and absorber 32 have shared top board and sidewall 37, and this sidewall 37 is an adiabatic wall, stop between generator 31 and the absorber 32 heat exchange takes place.Offer through hole as steam channel 37 on the top of this sidewall 37, the working substance steam that is used for generator 31 is produced flow to absorber 32, and is absorbed by high concentration absorbent solution wherein.The absorption heat that produces in the absorber 33 is exported by the outside working medium that absorbs in the heat exchanger 36, thereby reaches the purpose of heat supply.
Seeing also shown in Figure 4ly, is the structural representation of the absorption heating system of the embodiment of the invention 3.This heating system comprises: generator 41, absorber 42, steam channel 43 and liquid-feeding pump 44, the effect of above-mentioned each parts is identical with embodiment 1.Be filled with absorbent solution in the described generator 41, and be provided with generation heat exchanger 45.Be filled with absorbent solution in the described absorber 42, its concentration of absorbing is higher than the concentration of absorbing of absorbent solution in the generator 41, is provided with in the absorber 42 to absorb heat exchanger 46.Generator 41 in the present embodiment places within the absorber 42, so keeping generator 41 is uncovered state, can make its working substance steam that produces flow to the surface of the absorbent solution in the absorber 42, thereby absorbed by this absorbent solution, and it is hot to discharge absorption, should absorb outwards output of heat by absorbing heat exchanger 46, realize the purpose of heat supply.Generator 41 shown in the figure links to each other with the pipeline that passes through of absorber 42, is used for the absorbent solution of generator 41 is transported in the generator 42, is provided with valve 47 and is used to control the conducting of pipeline and close on this pipeline.Described liquid-feeding pump 44 also is connected in described generator 41 and absorber 42, is used for the absorbent solution on absorber 42 tops is transported to the higher generator in position 41.
Optionally, the structure of the heating system of embodiment 3 is constant, fills the absorbent solution of high concentration in generator 41, fills the absorbent solution of low concentration in absorber 42, by in absorbing heat exchanger 42, feeding outside low-temperature heat source, then can make the 45 outside heat supplies of generation heat exchanger.
Embodiments of the invention 4 also provide a kind of heat supply method, and it adopts the absorption heating system shown in embodiment 1 or 2 to realize.This method comprises: add lower concentration absorbing solution in the heater with outside low-temperature heat source by heat exchanger takes place, make it produce working substance steam; This working substance steam enters into absorber by steam channel; In absorber, absorbed by the absorbent solution of high concentration from the working substance steam of generator, and discharge and absorb heat.Because the absorbent solution concentration in the absorber is higher than the absorbent solution concentration in the generator, so under the absorber situation equal with the generator internal pressure, the absorbent solution in the absorber can be implemented in than absorbing working substance steam under the higher temperature of generator absorbent solution and discharging and absorb heat.By the outside working medium that absorbs in the heat exchanger above-mentioned absorption heat is delivered to external user, thereby reaches the purpose of heat supply.At this moment, because in said process, the operating temperature of absorber is higher than the operating temperature of generator, can realize being higher than from the outside working medium temperature that absorbs heat exchanger output the temperature of the outside low-temperature heat source that the heat exchanger input takes place, thereby more high-grade heat can be provided.According to the heat supply method of present embodiment, the temperature of the low-temperature heat source that drops into from the outside and the difference of the temperature of the high temperature heat source that provides to the outside are that the difference of concentration of temperature rise and generator absorbent solution and absorber absorbent solution is relevant.This concentration difference is big more, and then temperature rise is big more.Carrying out along with heat supplying process, concentration reduces absorbent solution in the absorber gradually owing to constantly absorb working substance steam, and the absorbent solution in the generator, because working medium constantly is evaporated, its concentration raises gradually, thereby the concentration difference of absorber absorbent solution and generator absorbent solution can reduce gradually.When above-mentioned concentration difference during, then stop heat supply less than certain predetermined numerical value.At this moment, need carry out the regenerative process of absorbent solution.See also shown in Figure 5, absorbent solution in the generator is transported in the absorber by liquid-feeding pump, in generator, feed the low temperature cold then, make the absorbent solution cooling in the absorber, along with the state that will reach capacity of the absorbent solution in the reduction absorber of temperature, when temperature further reduced, the absorbent in the absorbent solution can form crystallization and be deposited on the bottom of absorber, and the concentration of absorbing of supernatant can decrease.The temperature of the absorbent solution in absorber and then be reduced to a certain degree, absorber bottom deposits mass crystallization, and the concentration of absorbing of supernatant can stop cooling, and supernatant is delivered in the generator by liquid-feeding pump when being reduced to certain value.So far, the absorbent solution concentration in the absorber is improved and absorbent solution concentration in the generator has obtained reduction, thereby finishes the regenerative process of absorbent solution, after this can carry out heat supplying process next time.Because the specific heat capacity of absorbent solution is very little, its amount of cooling water is less, again because the crystallization heat of absorbent is more much smaller than the heat of evaporation of working medium, so the absorbent solution regenerative process only needs a spot of cold to finish.Working medium described in the present embodiment is the mixture of water, methyl alcohol and ethanol one of them or several materials; Described absorbent is LiBr, LiCl, LiNO 3, ZnCl 2And CaCl 2The mixture of one of them or several materials.
Below by example the exploitativeness of the foregoing description is described with concrete parameter.
Example
This example adopts the heat supply method of embodiment 4, and the moist steam that with saturation temperature is 75 ℃ is as outside low-temperature heat source.It is working medium that absorbent solution adopts water, and lithium bromide is an absorbent, and the LiBr initial mass concentration of absorbent solution is 56% in the generator, and it is 58% that LiBr stops mass concentration.The LiBr initial mass concentration of absorbent solution is 71% in the absorber, and the operating temperature of absorber remains at about 110 ℃ by the heat exchange of outside working medium and absorbent solution in absorption process.Because this example is possessed the LiBr crystallization all the time in absorber bottom, this crystallization is constantly dissolved in absorption process, thereby the LiBr mass concentration of absorbent solution remains at about 71% of 110 ℃ of saturated dissolved states in the absorber.110 ℃ that discharge in the absorption process absorb heat and provide to the outside by absorbing heat exchanger by outside working medium.
When the LiBr of absorbent solution in generator mass concentration increased to 58% left and right sides, the operating temperature of absorber can begin on a declining curve, and promptly finish absorption process and begin regenerative process this moment.At first, start liquid-feeding pump the absorbent solution in the generator is delivered to absorber, then the absorbent solution in the absorber is cooled off.This example adopts-15 ℃ non freezing solution as the cold source of supply, this non freezing solution is fed absorb heat exchanger with the absorbent solution in the cooling absorber.The non freezing solution cold of this example is provided by the compression-type refrigeration circulatory system, the compression-type refrigeration that adopts circulation be the low-temperature receiver of condenser with 15 ℃ cooling water, its coefficient of refrigerating performance (COP) is more than 3.0.The absorbent solution temperature reduce to-15 ℃ and finish the sedimentation separation of LiBr crystallization after, start liquid-feeding pump the supernatant in the absorber delivered to generator, the LiBr mass concentration of this supernatant is the saturation solubility under-15 ℃, promptly about 56%.The coefficient of heat supply of this example is about 0.80.
Comparative example
Adopt existing absorption heat pump circulating system as shown in Figure 1 to carry out heat supply, the moist steam that with saturation temperature is 75 ℃ is as the driving heat source (being outside low-temperature heat source) of evaporimeter and generator, with the low-temperature receiver of 15 ℃ cooling waters as condenser.It is working medium that absorbent solution adopts water, and lithium bromide is an absorbent, and the LiBr mass concentration of absorbent solution is 62% in the generator, and the LiBr mass concentration of absorbent solution is 58% in the absorber.Absorber discharges 110 ℃ absorption heat with this understanding, provides to the outside by absorbing heat exchanger by outside working medium.The coefficient of heat supply of this comparative example is about 0.47.
Above-mentioned example and comparative example coefficient of heat supply be defined as follows:
Coefficient of heat supply=by absorbing the heat that heat exchanger provides to the outside/(heat of the outside low-temperature heat source that drops into+be used for absorbent solution regenerate required cold)
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims (8)

1. absorption heating system is characterized in that it comprises:
Generator is provided with the generation heat exchanger in it, be filled with absorbent solution in this generator;
Absorber is provided with the absorption heat exchanger in it, be filled with absorbent solution in this absorber;
Steam channel is communicated with described generator and described absorber; And
The absorbent solution conveying device is connected in described generator and described absorber, is used for carrying absorbent solution between generator and absorber;
The concentration of absorbing of absorbent solution is lower than the concentration of absorbing of absorbent solution in the absorber in the generator.
2. absorption heating according to claim 1 system is characterized in that wherein said absorbent solution is made up of working medium and absorbent, and described working medium is the mixture of water, methyl alcohol and ethanol one of them or several materials; Described absorbent is LiBr, LiCl, LiNO 3, ZnCl 2And CaCl 2The mixture of one of them or several materials.
3. absorption heating according to claim 1 system is characterized in that wherein said absorber places generator inside, and perhaps generator places described absorber inside.
4. absorption heating according to claim 1 system is characterized in that wherein said generator and absorber have a shared sidewall, and described steam channel is the through hole that is opened on this sidewall.
5. an absorption heating method is characterized in that it adopts the described absorption heating of claim 1 system, and this method comprises:
In generator, heating lower concentration absorbing solution also produces working substance steam;
Above-mentioned working substance steam is delivered in the absorber by steam channel, and the high concentration absorbent solution that described working substance steam is absorbed in the device absorbs, and discharges the absorption heat of high temperature; And
In absorber, carry out heat exchange, with above-mentioned outwards output of absorption heat.
6. absorption heating method according to claim 5 is characterized in that it also comprises:
When the difference of absorbent solution concentration in the generator and the absorbent solution concentration in the absorber during, stop to add the absorbent solution in the heater less than preset value;
Absorbent solution in the generator is delivered in the absorber;
Absorbent solution in the cooling absorber makes it produce the absorbent crystallization;
The supernatant of absorber is delivered in the generator.
7. absorption heating method according to claim 5 is characterized in that wherein said generator is identical with the interior pressure of absorber.
8. the hot heat supply method of absorption according to claim 5 is characterized in that the absorbent solution in the wherein said absorber is saturated solution.
CN2008101120109A 2008-05-20 2008-05-20 Absorption heating system and absorption heating method Expired - Fee Related CN101586890B (en)

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CN2008101120109A CN101586890B (en) 2008-05-20 2008-05-20 Absorption heating system and absorption heating method
PCT/CN2009/000538 WO2009140858A1 (en) 2008-05-20 2009-05-19 Absorption type heat supply system and heat supply method

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Application Number Priority Date Filing Date Title
CN2008101120109A CN101586890B (en) 2008-05-20 2008-05-20 Absorption heating system and absorption heating method

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CN103673374A (en) * 2013-11-22 2014-03-26 清华大学 Working medium pair suitable for absorbing type energy storage circulation
CN109990366A (en) * 2017-12-29 2019-07-09 国家电投集团科学技术研究院有限公司 Heat accumulation couples absorption type heat pump heat distribution system
CN109350991B (en) * 2018-12-01 2023-09-26 中节能城市节能研究院有限公司 Solution active crystallization device for absorption type chemical energy storage
CN113405276B (en) * 2021-07-14 2022-07-05 重庆金康赛力斯新能源汽车设计院有限公司 Integrated cold source circulation generator and absorption type refrigerating device

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