CN202885330U - Double-generator single-pressure absorption type refrigeration device - Google Patents

Double-generator single-pressure absorption type refrigeration device Download PDF

Info

Publication number
CN202885330U
CN202885330U CN2012205876634U CN201220587663U CN202885330U CN 202885330 U CN202885330 U CN 202885330U CN 2012205876634 U CN2012205876634 U CN 2012205876634U CN 201220587663 U CN201220587663 U CN 201220587663U CN 202885330 U CN202885330 U CN 202885330U
Authority
CN
China
Prior art keywords
generator
absorber
absorbent
heat exchanger
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012205876634U
Other languages
Chinese (zh)
Inventor
叶鹏
梁俣
刘道平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Shanghai for Science and Technology
Original Assignee
University of Shanghai for Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Shanghai for Science and Technology filed Critical University of Shanghai for Science and Technology
Priority to CN2012205876634U priority Critical patent/CN202885330U/en
Application granted granted Critical
Publication of CN202885330U publication Critical patent/CN202885330U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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

Landscapes

  • Sorption Type Refrigeration Machines (AREA)

Abstract

The utility model relates to a double-generator single-pressure absorption type refrigeration device. Three types of work medium namely refrigerants, pressure balancing agents and absorption agents are used for synergistic effect, and a refrigeration loop, a pressure balancing agent loop and a absorbent loop are formed among a low-position generator, a vertical lifting pipe, a high-position generator, a solution heat exchanger, a rectifier, an absorber, a condenser, a pre-cooler and an evaporator to produce a refrigeration effect. The double-generator single-pressure absorption type refrigeration device is capable of directly utilizing a low-grade heat source, the components of the device work under the same low pressure, and the safety is high. The solution heat exchanger and the pre-cooler play the role of a heat regenerator, so that the efficiency of the device is improved. Pressure balancing agent steam passes through the solution heat exchanger and the rectifier and enables absorption agent steam to be separated, so that the absorption agent steam is prevented from entering the evaporator to cause circulation deterioration. The condenser is separated from the absorber, so that uncontrollability caused by mixed work of the condenser and the absorber is avoided. The three-fluid heat exchanger design of the solution heat exchanger and the pre-cooler simplifies a pipeline, and lowers resistance. Therefore, the whole double-generator single-pressure absorption type refrigeration device is simple in structure, simple in processing process, and good in sealing performance.

Description

A kind of double-generator single pressure absorption-type refrigeration device
Technical field
The utility model relates to a kind of refrigerating plant, particularly a kind of double-generator single pressure absorption-type refrigeration device.
Background technology
The further aggravation of energy crisis impels people that using energy source is introspected again, examines closely with a kind of brand-new angle, and for some new forms of energy, and the technology of utilizing of low-grade energy is progressively paid attention to.Simultaneously, the Globalization problem is day by day serious, brings new challenge to refrigeration industry development, ozone cavity and greenhouse effects, and the use of freon refrigerant is limited gradually, so that sorption type refrigerating technology obtains paying attention to and development again.The absorption type refrigerating unit that uses at present mostly is refrigeration system with lithium bromide absorption and ammonia absorption type refrigeration system, but these systems all are two the pressures or the multiple pressure circulation, and these pressure differentials need the mechanical devices such as solution pump and throttling arrangement to keep, so that the moving component that produces vibration and noise must be installed in these systems, and because the existence of these moving components, so that inevitably there is leakage problem in system.Simultaneously, the refrigerating capacity of these pairs pressure or multiple pressure formula refrigeration system is comparatively huge, has higher efficient to guarantee it, in the rare application of little these refrigeration systems of refrigerating capacity occasion.
SINGLE PRESSURE ABSORPTION REFRIGERATION CYCLE can utilize various energy resources to drive operation, not only can utilize high-grade energy, such as electric energy, can also utilize such as solar energy, and the low-grade energies such as waste heat, used heat.And SINGLE PRESSURE ABSORPTION REFRIGERATION CYCLE adopts environment amenable natural refrigerant, and is minimum to the environment negative effect, and system do not have moving component, and good seal is simple in structure, working stability, and noiselessness uses reliable, easy to maintenance.Traditional SINGLE PRESSURE ABSORPTION REFRIGERATION CYCLE is the spread-absorbing type kind of refrigeration cycle, there is the little problem of refrigerating capacity, can not satisfy the refrigeration demand of room air conditioner, and its pressure equilibrium agent that uses is hydrogen or nitrogen, operating pressure is high, sealing property and manufacturing technique requirent to system are very high, and production cost is high.
Summary of the invention
The utility model is can not satisfy the demands for present single pressure absorption-type refrigeration cooling system amount, the inner high problem of pressure equilibrium agent instructions for use, a kind of double-generator single pressure absorption-type refrigeration device has been proposed, can utilize low-grade heat source to drive, refrigerating capacity can satisfy Small Refrigerating Equipment and room air conditioner demand, and can in noiselessness operation under the lower pressure, have the single pressure absorption-type refrigeration system of the double-generator of good sealing property.
The technical solution of the utility model is: a kind of double-generator single pressure absorption-type refrigeration device, comprise the low level generator, the vertical-lifting pipe, high-order generator, solution heat exchanger, rectifier, absorber, condenser, forecooler and evaporimeter, use cold-producing medium, pressure equilibrium agent, three kinds of working medium of absorbent in the described double-generator single pressure absorption-type refrigeration device
Refrigerant loop: refrigerant liquid is from the inlet of condenser liquid outlet cold-producing medium heat exchanging chamber inflow evaporimeter through forecooler, the mixed vapour of cold-producing medium and pressure equilibrium agent is from the air inlet of gas outlet heat transfer of mixture gas chamber inflow absorber through forecooler of evaporimeter, and refrigerant vapour flows into the air inlet of condenser from the gas outlet of absorber;
The pressure equilibrium agent loop: the pressure equilibrium agent steam that generates in the low level generator flows into high-order generator by the vertical-lifting pipe, and with gas outlet the pressure equilibrium agent heat exchanging chamber through solution heat exchanger in of the pressure equilibrium agent steam that in high-order generator, generates by high-order generator, rectifier, the pressure equilibrium agent heat exchanging chamber flows into the air inlet of evaporimeter in the forecooler, the mixed vapour of cold-producing medium and pressure equilibrium agent is from the air inlet of the heat transfer of mixture gas chamber inflow absorber of gas outlet through forecooler of evaporimeter, and the pressure equilibrium agent and the absorbent solution that are absorbed the agent absorption flow into low level generator inlet from the concentrated solution heat exchanging chamber of absorber liquid outlet through solution heat exchanger;
The absorbent loop: absorbent solution is promoted to the high-order generator by the vertical-lifting pipe from the low level generator, be connected to the inlet of absorber through the absorbent weak solution of generating process from the weak solution heat exchanging chamber of liquid outlet through solution heat exchanger of high-order generator, the absorbent concentrated solution that has absorbed pressure equilibrium agent steam flows into the inlet of low level generator from the concentrated solution heat exchanging chamber of absorber liquid outlet through solution heat exchanger.
Described three kinds of working medium wherein cold-producing medium are insoluble to absorbent, and pressure equilibrium agent is soluble in absorbent.Described three kinds of working medium take butane as cold-producing medium, ammonia is absorbent as pressure equilibrium agent, water.
The beneficial effects of the utility model are: the utility model double-generator single pressure absorption-type refrigeration device, can directly use the low-grade heat sources such as waste heat used heat, solar energy, underground heat of factory, and enlarge the scope that thermal source utilizes; The low level generator makes solution produce gas under heat-driven, and utilizes the bubble of these gases formation that solution wherein is promoted in the high-order generator by the vertical-lifting pipe, reaches the double effects that produces gas and promote solution; Various parts is under the same operating pressure works, and this pressure is lower, and Security of the system is stronger; Solution heat exchanger and forecooler play the effect of regenerator, and the efficient of elevator system reduces energy consumption; Behind pressure equilibrium agent steam process solution heat exchanger and the rectifier, the absorbent steam that wherein comprises is separated, and effectively avoids absorbent steam to enter the circulation deterioration that evaporimeter causes; Condenser separates with absorber, the uncontrollability of avoiding condensation process and absorption process to bring simultaneously, and so that the design of system is more simple; System pipeline is simplified in the three fluid heat exchanger design of solution heat exchanger and forecooler, reduces the system flow resistance; System's movement-less part does not produce noise during operation; The effect of high-order generator is that the solution that heats from the low level generator produces gas; System architecture is simple, and with being welded to connect, processing technology is simple between each parts, favorable sealing property.
Description of drawings
Fig. 1 is the utility model double-generator single pressure absorption-type refrigeration apparatus structure schematic diagram.
The specific embodiment
The double-generator single pressure absorption-type refrigeration device that the utility model provides uses cold-producing medium, pressure equilibrium agent, three kinds of working medium synergies of absorbent to produce refrigeration, and wherein cold-producing medium is insoluble to absorbent, and pressure equilibrium agent is soluble in absorbent.Utilize low level generator and vertical-lifting duct ligation to close the airlift pump effect of generation, will be in solution elevating in the low level generator to high-order generator, and utilize the continuous periodic duty of absorbent in the potential difference moving system of high-order generator and miscellaneous part.
Double-generator single pressure absorption-type refrigeration apparatus structure schematic diagram as shown in Figure 1, device comprises low level generator 1, vertical-lifting pipe 2, high-order generator 3, solution heat exchanger 4, rectifier 5, absorber 6, condenser 7, forecooler 8 and evaporimeter 9.Solid line and arrow express liquid pipeline thereof are its flow direction among Fig. 1, and dotted line and arrow thereof represent that gas piping is its flow direction, and hollow arrow represents that heat inputs or outputs.
Refrigerant loop: this loop is through condenser 7, forecooler 8, evaporimeter 9 and absorber 6, detailed process is that refrigerant liquid is from the inlet of condenser 7 liquid outlets cold-producing medium heat exchanging chamber inflow evaporimeter 9 through forecooler 8, the mixed vapour of cold-producing medium and pressure equilibrium agent is from the air inlet of gas outlet heat transfer of mixture gas chamber inflow absorber 6 through forecooler 8 of evaporimeter 9, and refrigerant vapour flows into the air inlet of condenser 7 from the gas outlet of absorber 6.
The pressure equilibrium agent loop: this loop is through low level generator 1, vertical-lifting pipe 2, high-order generator 3, solution heat exchanger 4, rectifier 5, forecooler 8, evaporimeter 9, absorber 6, detailed process is that the pressure equilibrium agent steam that generates in low level generator 1 flows into high-order generator 3 by vertical-lifting pipe 2, and with gas outlet the pressure equilibrium agent heat exchanging chamber through solution heat exchanger 4 in of the pressure equilibrium agent steam that in high-order generator 3, generates by high-order generator 3, rectifier 5, the pressure equilibrium agent heat exchanging chamber flows into the air inlet of evaporimeter 9 in the forecooler 8, the mixed vapour of cold-producing medium and pressure equilibrium agent is from the air inlet of the heat transfer of mixture gas chamber inflow absorber 6 of gas outlet through forecooler 8 of evaporimeter 9, and the pressure equilibrium agent and the absorbent solution that are absorbed the agent absorption flow into low level generator inlet from the concentrated solution heat exchanging chamber of absorber 6 liquid outlets through solution heat exchanger 4.
The absorbent loop: this loop is through low level generator 1, vertical-lifting pipe 2, high-order generator 3, solution heat exchanger 4, absorber 6, detailed process is that absorbent solution is promoted to the high-order generator 3 by vertical-lifting pipe 2 from low level generator 1, be connected to the inlet of absorber 6 through the absorbent weak solution of generating process from the weak solution heat exchanging chamber of liquid outlet through solution heat exchanger 4 of high-order generator 3, the absorbent concentrated solution that has absorbed pressure equilibrium agent steam flows into the inlet of low level generator 1 from the concentrated solution heat exchanging chamber of absorber 6 liquid outlets through solution heat exchanger 4.
Below take a kind of working medium group that is applicable to native system as example, the concrete running of illustrative system.This working medium group take butane as cold-producing medium, ammonia is absorbent as pressure equilibrium agent, water.Concrete running is as follows: dense ammonia spirit in low level generator 1 by after its inner heater heating, ammonia steam is separated from solution, and in low level generator 1, form bubble, these bubbles rise and enter in the vertical-lifting pipe 2, and enter into high-order generator 3 with ammonia spirit in the vertical-lifting pipe 2.The ammonia spirit that enters high-order generator 3 is heated again, ammonia is wherein further separated from solution, and together flow out from the gas vent of high-order generator 3 with the former ammonia steam that is introduced into, the ammonia steam heat-exchanging chamber that enters into solution heat exchanger 4 is cooled, then enter into rectifier 5 and be further cooled rectifying, the water of separating in solution heat exchanger 4 and rectifier 5 is back in the low level generator by liquid line.Ammonia through rectifier 5 enters into evaporimeter 9 through after the further cooling of forecooler 8, and these ammonias have reduced the surface vapor pressure of liquefied butane in the evaporimeter 9, so that the liquefied butane vaporization produces refrigeration.Gaseous state butane after the evaporation mixes with ammonia, through forecooler 8 and with wherein fluid heat transfer after enter into absorber 6, the ammonia in the mist is absorbed by the dilute ammonia solution from high-order generator 3 in absorber 6.Remaining butane gas enters into condenser 7, because ammonia is absorbed, so the butane partial pressure of this moment rises, be condensed into the liquid butane after the extraneous cooling, these liquid butane enter into evaporimeter 9 through after the cooling of forecooler 8, finish refrigerant circulation.
The ammonia spirit of the process generating process second time becomes dilute ammonia solution in high-order generator 3, these hot dilute ammonia solutions enter in the absorber 6 after by cold concentrated ammonia solution cooling wherein through solution heat exchangers 4, these dilute ammonia solutions absorb the ammonia in the mist and the cooling that is cooled in absorber, to promote the ability that absorbs ammonia.The dilute ammonia solution that has absorbed ammonia becomes cold concentrated ammonia solution, and these concentrated ammonia solutions enter in the low level generator 1 after by the ammonia spirit of wherein heat and ammonia Steam Heating through solution heat exchangers 4.So far, the circulation of pressure equilibrium agent and absorbent is finished.
This system only need to input heats to low level generator 1 and high-order generator 3, and simultaneously rectifier 5, absorber 6, condenser 8 is cooled off, and can produce refrigeration in evaporimeter 9.Solution heat exchanger 4 in the system and the effect of forecooler 8 are the heat utilization ratios in the Effective Raise system, thus increase system efficiency; The purpose of the rectifying action of the fractionation that solution heat exchanger 4 plays and rectifier 5 is that anti-sealing enters evaporimeter 9 affects refrigeration except the water in the deammoniation steam.

Claims (3)

1. double-generator single pressure absorption-type refrigeration device, it is characterized in that, comprise low level generator (1), vertical-lifting pipe (2), high-order generator (3), solution heat exchanger (4), rectifier (5), absorber (6), condenser (7), use cold-producing medium, pressure equilibrium agent, three kinds of working medium of absorbent in forecooler (8) and the evaporimeter (9), described double-generator single pressure absorption-type refrigeration device
Refrigerant loop: refrigerant liquid is from the inlet of condenser (7) liquid outlet cold-producing medium heat exchanging chamber inflow evaporimeter (9) through forecooler (8), the mixed vapour of cold-producing medium and pressure equilibrium agent is from the air inlet of gas outlet heat transfer of mixture gas chamber inflow absorber (6) through forecooler (8) of evaporimeter (9), and refrigerant vapour flows into the air inlet of condenser (7) from the gas outlet of absorber (6);
The pressure equilibrium agent loop: the pressure equilibrium agent steam that generates in the low level generator (1) flows into high-order generator (3) by vertical-lifting pipe (2), and with gas outlet the pressure equilibrium agent heat exchanging chamber through solution heat exchanger (4) in of the pressure equilibrium agent steam that in high-order generator (3), generates by high-order generator (3), rectifier (5), the pressure equilibrium agent heat exchanging chamber flows into the air inlet of evaporimeter (9) in the forecooler (8), the mixed vapour of cold-producing medium and pressure equilibrium agent is from the air inlet of the heat transfer of mixture gas chamber inflow absorber (6) of gas outlet through forecooler (8) of evaporimeter (9), and the pressure equilibrium agent and the absorbent solution that are absorbed the agent absorption flow into low level generator (1) inlet from the concentrated solution heat exchanging chamber of absorber (6) liquid outlet through solution heat exchanger (4);
The absorbent loop: absorbent solution is promoted to the high-order generator (3) by vertical-lifting pipe (2) from low level generator (1), be connected to the inlet of absorber (6) through the absorbent weak solution of generating process from the weak solution heat exchanging chamber of liquid outlet through solution heat exchanger (4) of high-order generator (3), the absorbent concentrated solution that has absorbed pressure equilibrium agent steam flows into the inlet of low level generator (1) from the concentrated solution heat exchanging chamber of absorber (6) liquid outlet through solution heat exchanger (4).
2. described double-generator single pressure absorption-type refrigeration device according to claim 1 is characterized in that described three kinds of working medium wherein cold-producing medium are insoluble to absorbent, and pressure equilibrium agent is soluble in absorbent.
3. described double-generator single pressure absorption-type refrigeration device according to claim 2 is characterized in that, described three kinds of working medium take butane as cold-producing medium, ammonia is absorbent as pressure equilibrium agent, water.
CN2012205876634U 2012-11-09 2012-11-09 Double-generator single-pressure absorption type refrigeration device Expired - Fee Related CN202885330U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012205876634U CN202885330U (en) 2012-11-09 2012-11-09 Double-generator single-pressure absorption type refrigeration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012205876634U CN202885330U (en) 2012-11-09 2012-11-09 Double-generator single-pressure absorption type refrigeration device

Publications (1)

Publication Number Publication Date
CN202885330U true CN202885330U (en) 2013-04-17

Family

ID=48076754

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012205876634U Expired - Fee Related CN202885330U (en) 2012-11-09 2012-11-09 Double-generator single-pressure absorption type refrigeration device

Country Status (1)

Country Link
CN (1) CN202885330U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114322354A (en) * 2021-12-20 2022-04-12 安徽普泛能源技术有限公司 Absorption type circulating refrigeration system and process thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114322354A (en) * 2021-12-20 2022-04-12 安徽普泛能源技术有限公司 Absorption type circulating refrigeration system and process thereof
CN114322354B (en) * 2021-12-20 2023-07-28 安徽普泛能源技术有限公司 Absorption type circulating refrigeration system and process thereof

Similar Documents

Publication Publication Date Title
CN102620461B (en) Auto-cascade jet type refrigerator
CN202521938U (en) Heat pump system and drying system
CN204718176U (en) Utilize the absorption system of residual heat from boiler fume
CN103868278B (en) Low-grade energy drives CO2absorption type cold-hot chp system
CN105674558A (en) Gas engine driven steam compressing and absorbing combined type heat pump hot water unit running method
CN103322725A (en) Heat pump system, drying system, and respective method
CN202216448U (en) Diffusion absorption refrigeration and vapor compression refrigeration combined recycle system
CN102322705B (en) Circulating device combining diffusing absorption-type refrigeration and vapor compression refrigeration
CN108050571A (en) Single-stage balanced type ammonia-water reabsorbs formula heat pump cycle equipment and heat supply method
CN105401988B (en) Utilize the efficient circulation system of vortex tube
CN103175332B (en) Two-stage absorption refrigeration circulation system based on double working pairs and refrigeration method thereof
CN203190713U (en) Pressurization type three-phase absorption energy storage device
CN102401504B (en) High-efficiency 1.5-acting lithium bromide absorption-type refrigeration/heat pump unit
CN110986418B (en) Absorption type circulating system based on temperature rising and pressure rising technology
CN202885330U (en) Double-generator single-pressure absorption type refrigeration device
CN113587471B (en) Double-stage compression and absorption type high-temperature heat pump combined cold and heat combined supply system
CN110500688B (en) Dilution type refrigeration heat pump system for air conditioning by utilizing dilution heat
CN205383781U (en) Compression of driving vapour of gasengine and absorption combined type heat pump water heater group
CN110986420B (en) Absorption type circulating system based on temperature rise reheating technology
CN204963288U (en) Use lithium bromide absorption formula at solar energy and water source to heat, refrigerating plant
CN103994599A (en) Transcritical injection refrigeration system based on gas-liquid injection pump
CN210980197U (en) Dilution type refrigeration heat pump system for air conditioning by using dilution heat
CN204006779U (en) A kind of efficient HGAX absorption type refrigerating unit
CN108088111A (en) Two-stage isothermal ammonia-water reabsorbs formula heat pump cycle and heat supply method
CN202521939U (en) Heat pump system and drying system

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130417

Termination date: 20131109