CN1267687C - Absorption-injection type composite refrigerator - Google Patents
Absorption-injection type composite refrigerator Download PDFInfo
- Publication number
- CN1267687C CN1267687C CNB200410012681XA CN200410012681A CN1267687C CN 1267687 C CN1267687 C CN 1267687C CN B200410012681X A CNB200410012681X A CN B200410012681XA CN 200410012681 A CN200410012681 A CN 200410012681A CN 1267687 C CN1267687 C CN 1267687C
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- CN
- China
- Prior art keywords
- refrigerating machine
- lithium
- type refrigerating
- bromide absorption
- absorption
- 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
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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
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention discloses a composite refrigerator of absorption types and jetting types, which is formed by that the combination of the absorption refrigeration circulation and the jetting refrigeration circulation of lithium bromide. An evaporator of a lithium bromide absorption type refrigerator is a condenser of a jetting type refrigerator, and an absorber of the lithium bromide absorption type refrigerator is a generator of the jetting type refrigerator. Only the lithium bromide absorption type refrigerator needs to consume external energy sources, and the driving heat sources of the jetting type refrigerator come from heat absorption and heat release in the absorber of the lithium bromide absorption type refrigerator; simultaneously, the refrigerating capacity of the evaporator of the lithium bromide absorption type refrigerator is used for reducing the condensation temperature of the jetting type refrigerator so as to ensure the normal work of the jetting type refrigerator, so that the evaporation temperature of the jetting type refrigerator can achieve below zero DEG C. In this way, the present invention can satisfy the temperature requirements of users below zero DEG C, and can reduce the consumption of the driving heat sources so as to improve the refrigeration coefficient of the composite refrigerator.
Description
Technical field
The present invention relates to a kind of refrigerating plant, particularly relate to the refrigerating plant that a kind of acquisition is lower than 0 ℃ of requirement
Background technology
Lithium-bromide absorption-type refrigerating machine is a kind of eco-friendly refrigerating plant, to environment without any destruction.Because what adopt is that heat energy drives, and not only can adopt the elevated temperature heat sources such as steam more than 100 ℃, and can adopt temperature waste heat sources such as solar energy, waste vapour, waste gas, spent hot water as driving heat source, has the considerable energy saving effect.But lithium-bromide absorption-type refrigerating machine is owing to adopt and use water as cold-producing medium, can only use under temperature is higher than 0 ℃ condition, can not satisfy to be lower than 0 ℃ temperature requirement.Though ammonia water absorbing refrigerator can obtain 0 ℃ of following temperature, the temperature requirement height of driving heat source, generally more than 120 ℃, and the coefficient of performance is lower.Ejector type refrigerating machine driving heat source temperature depends on environment temperature, the environment temperature height, and then heat source temperature requires high.So, under the normal temperature environment condition, its heat source temperature requires also than higher, as to adopt R134a be cold-producing medium, and condensation temperature is 40 ℃, when evaporating temperature is-10 ℃, its driving heat source temperature will reach about 90 ℃, cause generator pressure very big, the pressure limit that is allowed considerably beyond general R134a refrigeration system, and also its coefficient of refrigerating performance is lower.
2003 the 31st the 2nd phases of volume of " fluid machinery " magazine have been delivered one piece of article, name is called " jet heat pump and the pre-test of absorption refrigeration combined-circulation ", this compound-refrigerating circulation adopts the injecting type heat pump to provide driving heat source for lithium-bromide absorption-type refrigerating machine, help improving the coefficient of refrigerating performance of lithium-bromide absorption-type refrigerating machine, but this compound-refrigerating circulation can not obtain the evaporating temperature below 0 ℃.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art part, provide a kind of absorption-jet type combined refrigeration machine, in order to obtain 0 ℃ of following evaporating temperature, especially in order under the low-temperature heat source drive condition, obtain 0 ℃ of following evaporating temperature, realize the coefficient of refrigerating performance of raising system.
For achieving the above object, the technical solution used in the present invention is, a kind of absorption-jet type combined refrigeration machine, the lithium-bromide absorption-type refrigerating machine generator links to each other with the lithium-bromide absorption-type refrigerating machine condenser, and the lithium-bromide absorption-type refrigerating machine generator links to each other by first throttle valve, solution pump and the lithium-bromide absorption-type refrigerating machine absorber of lithium-bromide absorption-type refrigerating machine respectively, the lithium-bromide absorption-type refrigerating machine condenser links to each other with the lithium-bromide absorption-type refrigerating machine evaporimeter by U type pipe, and the lithium-bromide absorption-type refrigerating machine evaporimeter links to each other with the lithium-bromide absorption-type refrigerating machine absorber; The lithium-bromide absorption-type refrigerating machine absorber links to each other with the ejector type refrigerating machine injector, injector links to each other with lithium-bromide absorption-type refrigerating machine evaporimeter, ejector type refrigerating machine evaporimeter respectively, the lithium-bromide absorption-type refrigerating machine evaporimeter links to each other with the ejector type refrigerating machine evaporimeter by second choke valve, and the lithium-bromide absorption-type refrigerating machine evaporimeter links to each other with the lithium-bromide absorption-type refrigerating machine absorber by the refrigerated medium pump of ejector type refrigerating machine.
The invention has the advantages that: the present invention has only lithium-bromide absorption-type refrigerating machine need consume outside resources, and the driving heat source of ejector type refrigerating machine comes from the absorption thermal discharge in the lithium-bromide absorption-type refrigerating machine absorber.Simultaneously, reduce the ejector type refrigerating machine condensation temperature with the refrigerating capacity of lithium-bromide absorption-type refrigerating machine evaporimeter, can operate as normal to guarantee ejector type refrigerating machine, make the evaporating temperature of ejector type refrigerating machine can reach below 0 ℃.Like this, not only make the present invention can satisfy the temperature requirement of user below 0 ℃, can also reduce the consumption of drive energy, improved the coefficient of refrigerating performance of system.Driving heat source can adopt temperature waste heat sources such as solar energy, waste vapour, waste gas, spent hot water.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention.
The specific embodiment
By shown in Figure 1, the present invention is composited by lithium bromide absorbing type refrigeration circulation and spray type refrigerating circulation.The present invention includes the refrigerated medium pump 12 and the injector 13 of lithium-bromide absorption-type refrigerating machine generator 1, lithium-bromide absorption-type refrigerating machine condenser 2, U type pipe 3, lithium-bromide absorption-type refrigerating machine evaporimeter 4, lithium-bromide absorption-type refrigerating machine absorber 5, lithium-bromide absorption-type refrigerating machine solution pump 6, first throttle valve 7, driving heat source 8, cooling medium 9, second choke valve 10, ejector type refrigerating machine evaporimeter 11, ejector type refrigerating machine.Driving heat source 8 can adopt temperature waste heat sources such as solar energy, waste vapour, waste gas, spent hot water.Cooling medium 9 can be water or air.
Lithium-bromide absorption-type refrigerating machine generator 1 links to each other with lithium-bromide absorption-type refrigerating machine condenser 2, and lithium-bromide absorption-type refrigerating machine generator 1 links to each other by first throttle valve 7, solution pump 6 and the lithium-bromide absorption-type refrigerating machine absorber 5 of lithium-bromide absorption-type refrigerating machine respectively, lithium-bromide absorption-type refrigerating machine condenser 2 links to each other with lithium-bromide absorption-type refrigerating machine evaporimeter 4 by U type pipe 3, and lithium-bromide absorption-type refrigerating machine evaporimeter 4 links to each other with lithium-bromide absorption-type refrigerating machine absorber 5; Lithium-bromide absorption-type refrigerating machine absorber 5 links to each other with ejector type refrigerating machine injector 13, injector 13 links to each other with lithium-bromide absorption-type refrigerating machine evaporimeter 4, ejector type refrigerating machine evaporimeter 11 respectively, lithium-bromide absorption-type refrigerating machine evaporimeter 4 links to each other with ejector type refrigerating machine evaporimeter 11 by second choke valve 10, and lithium-bromide absorption-type refrigerating machine evaporimeter 4 links to each other with lithium-bromide absorption-type refrigerating machine absorber 5 by the refrigerated medium pump 12 of ejector type refrigerating machine.
The generator 1 of lithium-bromide absorption-type refrigerating machine obtains energy from driving heat source 8, produces the cold-producing medium water vapour in the generator 1 of lithium-bromide absorption-type refrigerating machine, and the condenser 2 that the enters lithium-bromide absorption-type refrigerating machine medium 9 that is cooled is condensed into aqueous water.After 3 throttlings of U type pipe, step-down, cooling, the middle evaporation heat absorption of evaporimeter 4 (this evaporimeter is again the condenser of ejector type refrigerating machine) that enters lithium-bromide absorption-type refrigerating machine becomes low pressure water vapor.Enter the absorber 5 (this absorber is again the generator of ejector type refrigerating machine) of lithium-bromide absorption-type refrigerating machine then, water vapour is flowed out from the generator 1 of lithium-bromide absorption-type refrigerating machine, and absorb through the bromize lithium concentrated solution of first throttle valve 7, after becoming bromize lithium dilute solution, the generator 1 of being delivered to lithium-bromide absorption-type refrigerating machine by solution pump 6 circulates again.
In the absorber 5 of lithium-bromide absorption-type refrigerating machine, the cold-producing medium of spray type refrigerating circulation is heated and becomes refrigerant vapour, enter the injector 13 of ejector type refrigerating machine, the low pressure refrigerant vapor that produces in the evaporimeter 11 of injection from ejector type refrigerating machine, and in the injector 13 of ejector type refrigerating machine, after the compression, send in the evaporimeter 4 of lithium-bromide absorption-type refrigerating machine and be condensed into refrigerant liquid.Then, be divided into two-way, the one tunnel through after 10 throttlings of second choke valve, and step-down, cooling enter evaporimeter 11 absorption refrigerations of ejector type refrigerating machine, become the injected device 13 of refrigerant vapour and suck, and carry out next kind of refrigeration cycle.Absorber 5 heating evaporations that lithium-bromide absorption-type refrigerating machine is sent into through refrigerated medium pump 12 in another road are steam, carry out next one circulation.
The present invention also can comprise heat exchanger, and this heat exchanger is between lithium-bromide absorption-type refrigerating machine generator 1 and lithium-bromide absorption-type refrigerating machine solution pump 6, simultaneously between lithium-bromide absorption-type refrigerating machine generator 1 and first throttle valve 7.Concentrated solution in lithium-bromide absorption-type refrigerating machine generator 1 enters heat exchanger, and with the weak solution heat exchange of coming out from lithium-bromide absorption-type refrigerating machine solution pump 6, the concentrated solution Hou ， Longitude first throttle valve 7 that is cooled enters lithium-bromide absorption-type refrigerating machine absorber 5.By reclaiming the heat of concentrated solution, can reduce the consumption that lithium-bromide absorption-type refrigerating machine generator 1 drives energy effectively, further improve the coefficient of refrigerating performance of absorption-jet type combined refrigeration machine.
Claims (2)
1. absorption-jet type combined refrigeration machine, it is characterized in that: lithium-bromide absorption-type refrigerating machine generator (1) links to each other with lithium-bromide absorption-type refrigerating machine condenser (2), and lithium-bromide absorption-type refrigerating machine generator (1) passes through the first throttle valve (7) of lithium-bromide absorption-type refrigerating machine respectively, solution pump (6) links to each other with lithium-bromide absorption-type refrigerating machine absorber (5), lithium-bromide absorption-type refrigerating machine condenser (2) links to each other with lithium-bromide absorption-type refrigerating machine evaporimeter (4) by U type pipe (3), and lithium-bromide absorption-type refrigerating machine evaporimeter (4) links to each other with lithium-bromide absorption-type refrigerating machine absorber (5); Lithium-bromide absorption-type refrigerating machine absorber (5) links to each other with ejector type refrigerating machine injector (13), injector (13) links to each other with lithium-bromide absorption-type refrigerating machine evaporimeter (4), ejector type refrigerating machine evaporimeter (11) respectively, lithium-bromide absorption-type refrigerating machine evaporimeter (4) links to each other with ejector type refrigerating machine evaporimeter (11) by second choke valve (10), and lithium-bromide absorption-type refrigerating machine evaporimeter (4) links to each other with lithium-bromide absorption-type refrigerating machine absorber (5) by the refrigerated medium pump (12) of ejector type refrigerating machine.
2. compound-refrigerating machine according to claim 1, it is characterized in that: also comprise heat exchanger, this heat exchanger is positioned between lithium-bromide absorption-type refrigerating machine generator (1) and the lithium-bromide absorption-type refrigerating machine solution pump (6), is positioned at simultaneously between lithium-bromide absorption-type refrigerating machine generator (1) and the first throttle valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410012681XA CN1267687C (en) | 2004-01-17 | 2004-01-17 | Absorption-injection type composite refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410012681XA CN1267687C (en) | 2004-01-17 | 2004-01-17 | Absorption-injection type composite refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1558165A CN1558165A (en) | 2004-12-29 |
| CN1267687C true CN1267687C (en) | 2006-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410012681XA Expired - Fee Related CN1267687C (en) | 2004-01-17 | 2004-01-17 | Absorption-injection type composite refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1267687C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969526A (en) * | 2017-05-09 | 2017-07-21 | 上海海洋大学 | A kind of new type solar energy absorption system |
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2004
- 2004-01-17 CN CNB200410012681XA patent/CN1267687C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1558165A (en) | 2004-12-29 |
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