CN201043826Y - Supercharging-absorption ammonia absorption refrigerator - Google Patents
Supercharging-absorption ammonia absorption refrigerator Download PDFInfo
- Publication number
- CN201043826Y CN201043826Y CNU2007201033830U CN200720103383U CN201043826Y CN 201043826 Y CN201043826 Y CN 201043826Y CN U2007201033830 U CNU2007201033830 U CN U2007201033830U CN 200720103383 U CN200720103383 U CN 200720103383U CN 201043826 Y CN201043826 Y CN 201043826Y
- Authority
- CN
- China
- Prior art keywords
- ammonia
- heat exchanger
- inlet
- outlet
- solution
- 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 - Lifetime
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 pressurized ammonia-absorpting refrigeration device, comprising an ammonia circulating loop formed by a generator, a partial condenser, a heat exchanger, a condenser, an evaporator, an absorber, a subcooler, a solution pump, a dilute solution throttling valve, an expansion valve and an ammonia spirit circulating loop. The utility model also comprises a pressurizer arranged between the heat exchanger and the generator, the solution pump and the subcooler. The free ammonia runs through the pressurizer and enters into the heat exchanger, and an ammonia circulating loop is formed; the ammonia spirit runs into the heat exchanger through the pressurizer after being vented from the generator and/or the solution pump, and an ammonia spirit loop is formed. The utility model is added with a pressurizer system to improve the pressure of the absorber; therefore, the absorbing effect is improved, and the coefficient of refrigeration performance is increased. The pipeline is simple in structure and easy to implement, and can be extensively applied to ammonia absorpting refrigeration devices. The pressurizer system leads out a route of high-pressure ammonia solution from the outlet of the solution pump to pressurize the ammonia vapor from the generator to achieve the effect of pressurized absorption.
Description
Technical field
The present invention relates to a kind of refrigerating plant, relate in particular to the ammonia-water absorption-type refrigeration device that a kind of supercharging absorbs.
Background technology
Ammonia water absorbing refrigerator was just brought into use as far back as 1860.The cryogenic temperature scope of ammonia absorption type refrigeration is wide, can produce the following temperature of zero degrees celsius, and mainly be that dependence heat energy is power, only need a spot of electric energy to move, therefore in steam compression type refrigerating relatively advanced today, ammonia absorption type refrigeration still has irreplaceable space.Early stage ammonia water absorbing refrigerator, bulky, it is more that the manufacturing of equipment expends steel, and refrigerating efficiency is low.
At present, ammonia-water absorption-type refrigeration device as shown in Figure 1, mainly comprises generator 1, segregator 2, condenser 4, evaporimeter 5, absorber 6, subcooler 7, GAX heat exchanger 3, solution pump 8, weak solution choke valve 9, the first expansion valves 10, the second expansion valves 11.Described structure is divided into gas circuit and liquid road two parts closed circuit.The ammonia road connected mode of described structure: generator 1 ammonia outlet is connected with segregator 2 ammonias inlet, segregator 2 phegma pipelines are connected with generator 1, segregator 2 ammonia outlet are connected with condenser 4 inlets, condenser 4 outlets are connected with first expansion valve 10, first expansion valve 10 is connected with subcooler 7 ammoniacal liquors inlet, the outlet of subcooler 7 ammoniacal liquors is connected with second expansion valve 11, second expansion valve 11 is connected with evaporimeter 5 inlets, evaporimeter 5 outlets are connected with subcooler 7 ammonias inlet, and subcooler 7 ammonia outlet are connected with GAX heat exchanger 3 ammonias inlet.The solution road connected mode of described structure: the weak solution outlet of generator 1 is connected with weak solution choke valve 9, weak solution choke valve 9 is connected with the weak solution inlet of GAX heat exchanger 3, the taphole of GAX heat exchanger 3 is connected with absorber 6 inlets, the outlet of absorber 6 is connected with solution pump 8 inlets, heat exchange coil inlet in the outlet of solution pump 8 and the segregator 2 is connected, the heat exchange coil outlet of segregator 2 is connected with the heat exchange coil inlet of GAX heat exchanger 3, and the heat exchange coil outlet of GAX heat exchanger 3 is connected with generator 1 concentrated solution liquid return hole.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of and on the basis of existing ammonia absorption type refrigeration (heat) device, increase a pressure charging system, improve the pressure of absorber, make absorber obtain better assimilation effect, thereby improve the coefficient of performance of refrigerating of system.
To achieve these goals, the invention provides the ammonia-water absorption-type refrigeration device that a kind of supercharging absorbs, closed circuit by ammonia closed circuit and ammonia spirit constitutes, and comprising: generator, segregator, heat exchanger, condenser, evaporimeter, absorber, subcooler, solution pump, weak solution choke valve, expansion valve; Described generator ammonia outlet is connected with described segregator ammonia inlet, described segregator ammonia outlet is connected with described condenser inlet, described condensator outlet is connected with described subcooler ammoniacal liquor inlet by expansion valve, described subcooler ammoniacal liquor outlet is connected with described evaporator inlet by another expansion valve, described evaporator outlet is connected with described subcooler ammonia inlet, constitutes the closed circuit of ammonia; The solution road connected mode of described structure: the weak solution outlet of described generator is connected with described weak solution choke valve, described weak solution choke valve is connected with described heat exchanger entrance, described heat exchanger exit is connected with described absorber inlet, the outlet of described absorber is connected with described solution pump inlet, described solution pump is connected with the heat exchange coil inlet of described segregator, the outlet of described segregator heat exchange coil is connected with the heat exchange coil of heat exchanger inlet, the heat exchange coil outlet of described heat exchanger is connected with described generator concentrated solution liquid return hole, constitute the solution circulation loop of ammoniacal liquor, it is characterized in that, also comprise: supercharging device is arranged on described heat exchanger and described generator, described solution pump, between the described subcooler; In described ammonia closed circuit, ammonia is discharged from described subcooler and is entered described heat exchanger by described supercharging device, forms the ammonia closed circuit; In the closed circuit of described ammonia spirit, ammonia spirit enters described heat exchanger from described generator and/or described solution pump discharge back by described supercharging device, forms the closed circuit of ammonia spirit.
Above-mentioned supercharging device comprises the first continuous supercharging device and second supercharging device, and described first supercharging device one tunnel connects described subcooler, and another road connects described solution pump by check valve; Described second supercharging device connects described generator and described heat exchanger respectively.
In the closed circuit of above-mentioned ammonia, the ammonia outlet of described subcooler is connected with the ammonia inlet of described first supercharging device.
Above-mentioned solution delivery side of pump divides two-way, one the tunnel is connected with heat exchange coil inlet in the described segregator, the heat exchange coil outlet of described segregator is connected with the concentrated solution inlet of described heat exchanger, the concentrated solution outlet of described heat exchanger is connected with the concentrated solution inlet of described segregator, and the taphole of described segregator is connected with generator; Another road is connected with the ammonia inlet of described first supercharging device, and the outlet of first supercharging device is connected with the ammonia inlet of second supercharging device.
Above-mentioned first supercharging device and above-mentioned second supercharging device are emitter construction.
Above-mentioned heat exchanger is the GAX heat exchanger.
Effect of the present invention is, by increase a pressure charging system on the basis of existing ammonia absorption type refrigeration (heat) device, improves the pressure of absorber, makes absorber obtain better assimilation effect, thereby improves the coefficient of performance of refrigerating of system.This pipeline structure is simple, is easy to realize, can be widely used in ammonia-water absorption-type refrigeration device.This pressure charging system reaches the effect that supercharging absorbs by drawing one road high pressure aqua ammonia concentrated solution to the ammonia steam supercharging that evaporimeter comes out from the solution pump outlet.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is existing ammonia-water absorption-type refrigeration device structure schematic flow sheet;
Fig. 2 is a structure schematic flow sheet of the present invention;
Fig. 3 is the first supercharging device structural representation;
Fig. 4 is the second supercharging device structural representation.
Wherein, Reference numeral
1 generator, 2 segregators
3 GAX heat exchangers, 4 air-cooled condensers
5 evaporimeters, 6 air-cooled absorbers
7 subcoolers, 8 solution pumps
9 weak solution choke valves, 10 first expansion valves
11 second expansion valves, 12 check valves
13 first supercharging devices, 14 second supercharging devices
15 nozzles, 16 suction chambers
17 trunnions, 18 anemostats
The d1 concentrated solution is gone into d weak solution inlet
S ammonia steam S1 concentrated solution and ammonia steam mixture inlet
The specific embodiment
See also Fig. 2, the ammonia-water absorption-type refrigeration device that supercharging of the present invention absorbs comprises generator 1, segregator 2, heat exchanger 3 (the present invention adopts the GAX heat exchanger), air-cooled condenser 4, evaporimeter 5, air-cooled absorber 6, subcooler 7, solution pump 8, weak solution choke valve 9, the first expansion valves 10, second expansion valve 11, check valve 12, first supercharging device, 13, the second supercharging devices 14.
Its workflow is as follows:
1) stroke of gas circuit: the ammonia steam of the HTHP that generator 1 comes out and water vapor mixture body enter segregator 2 from the ammonia outlet k discharge of generator 1, carry out heat exchange with the concentrated solution heat exchanger tube of segregator, water recovery also is back to the generator 1 from pipeline m.The ammonia steam is discharged from segregator 2 ammonia outlet n and is entered air-cooled condenser 4, liquefied ammonia through air-cooled condenser 4 coolings becoming cryogenic high pressure, a discharges from the air-cooled condenser outlet, through first expansion valve 10, produces pressure drop, the little ammonia evaporation is arranged, the liquefied ammonia temperature is further reduced, enter subcooler 7 then, liquefied ammonia carries out heat exchange with the low temperature ammonia steam that comes out from evaporimeter 5, temperature further reduces, and liquefied ammonia comes out after second expansion valve 11 enters evaporimeter 5 evaporations from subcooler 7 outlet b.The ammonia steam ammonia inlet d1 from first supercharging device 13 after subcooler 7 heat exchange that comes out from evaporimeter 5 outlet c enters first supercharging device 13.
2) stroke on solution road: the ammoniacal liquor weak solution of discharging from generator 1 outlet h enters second supercharging device 14 from second supercharging device, 14 solution inlet d after 11 throttlings of weak solution choke valve, simultaneously also enter second supercharging device 14 and carry out supercharging from S1 from the mixture of the ammonia steam concentrated solution of first supercharging device 13, the mixture of solution and ammonia steam is discharged from the outlet of second supercharging device 14, inlet p from GAX heat exchanger 3, enter GAX heat exchanger 3, in the GAX heat exchanger, the ammoniacal liquor weak solution tentatively absorbs the ammonia steam, and emit heat, carry out heat exchange with the concentrated solution heat exchanger tube in the GAX heat exchanger 7, the ammoniacal liquor concentrated solution in the concentrated solution heat exchanger tube is heated.Ammonia spirit and unabsorbed ammonia steam are discharged from GAX heat exchanger 3 outlet q and are entered air-cooled absorber 6, and in air-cooled absorber 6, because lower temperature, the ammonia steam is absorbed completely, forms the ammoniacal liquor concentrated solution.The ammoniacal liquor concentrated solution that exports the e discharge from air-cooled absorber 6 is after solution pump 8 pressurizations, one the tunnel enters supercharging device 13 through check valve 9, another road enters the concentrated solution heat exchanger tube of segregator 2 from segregator 2 inlet f, with HTHP ammonia steam and the heat exchange of water vapor mixture body, discharge from segregator 2 outlet g after the heat exchange, enter the concentrated solution heat exchanger tube of GAX heat exchanger 3, enter segregator 2 from segregator 2 concentrated solutions inlet i through the ammoniacal liquor concentrated solution of heat exchange, from segregator 2 by the road m flow into generator 1.Enter the ammoniacal liquor concentrated solution of supercharging device 13 through individual event valve 12, the ammonia steam that comes from gas circuit inlet S is carried out the supercharging of the first step, the mixture of concentrated solution and ammonia steam is discharged from the outlet of supercharging device 13, and enters supercharging device 14 from the ammonia inlet d of supercharging device 14.
See also Fig. 3 first supercharging device structural representation; Fig. 4 second supercharging device structural representation.
First supercharging device 13 and second supercharging device 14 adopt existing emitter construction, comprise the nozzle 15 that is positioned at an end, be sheathed on the suction chamber 16 of nozzle 15, the trunnion 17 and the anemostat 18 that extend forward from suction chamber 16, the inlet of nozzle is the solution inlet, the lower end of suction chamber is provided with the ammonia vapour inlet, the trunnion sectional area is less than the suction chamber sectional area, the anemostat sectional area outwards strengthens gradually from trunnion, nozzle exit end makes the solution that enters from inlet spray into trunnion from going out the interruption-forming liquid jet less than arrival end.
The present invention increases supercharging device in the ammonia absorption type refrigeration system of existing GAX heat exchanger, improve absorption pressure, obtains better assimilation effect.The refrigeration performance of raising system absorbs.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (6)
1. the ammonia-water absorption-type refrigeration device that absorbs of a supercharging, closed circuit by ammonia closed circuit and ammonia spirit constitutes, and comprising: generator, segregator, heat exchanger, condenser, evaporimeter, absorber, subcooler, solution pump, weak solution choke valve, expansion valve; Described generator ammonia outlet is connected with described segregator ammonia inlet, described segregator ammonia outlet is connected with described condenser inlet, described condensator outlet is connected with described subcooler ammoniacal liquor inlet by expansion valve, described subcooler ammoniacal liquor outlet is connected with described evaporator inlet by another expansion valve, described evaporator outlet is connected with described subcooler ammonia inlet, constitutes the closed circuit of ammonia; The solution road connected mode of described structure: the weak solution outlet of described generator is connected with described weak solution choke valve, described weak solution choke valve is connected with described heat exchanger entrance, described heat exchanger exit is connected with described absorber inlet, the outlet of described absorber is connected with described solution pump inlet, described solution pump is connected with the heat exchange coil inlet of described segregator, the outlet of described segregator heat exchange coil is connected with the heat exchange coil of heat exchanger inlet, the heat exchange coil outlet of described heat exchanger is connected with described generator concentrated solution liquid return hole, constitute the solution circulation loop of ammoniacal liquor, it is characterized in that, also comprise: supercharging device is arranged on described heat exchanger and described generator, described solution pump, between the described subcooler; In described ammonia closed circuit, ammonia is discharged from described subcooler and is entered described heat exchanger by described supercharging device, forms the ammonia closed circuit; In the closed circuit of described ammonia spirit, ammonia spirit enters described heat exchanger from described generator and/or described solution pump discharge back by described supercharging device, forms the closed circuit of ammonia spirit.
2. the ammonia-water absorption-type refrigeration device that supercharging according to claim 1 absorbs, it is characterized in that, described supercharging device comprises the first continuous supercharging device and second supercharging device, and described first supercharging device one tunnel connects described subcooler, and another road connects described solution pump by check valve; Described second supercharging device connects described generator and described heat exchanger respectively.
3. the ammonia-water absorption-type refrigeration device that supercharging according to claim 2 absorbs is characterized in that, in the closed circuit of described ammonia, the ammonia outlet of described subcooler is connected with the ammonia inlet of described first supercharging device.
4. the ammonia-water absorption-type refrigeration device that supercharging according to claim 2 absorbs, it is characterized in that, described solution delivery side of pump divides two-way, one the tunnel is connected with heat exchange coil inlet in the described segregator, the heat exchange coil outlet of described segregator is connected with the concentrated solution inlet of described heat exchanger, the concentrated solution outlet of described heat exchanger is connected with the concentrated solution inlet of described segregator, and the taphole of described segregator is connected with generator; Another road is connected with the ammonia inlet of described first supercharging device, and the outlet of first supercharging device is connected with the ammonia inlet of second supercharging device.
5. the ammonia-water absorption-type refrigeration device that absorbs according to claim 2,3 or 4 described superchargings is characterized in that described first supercharging device and described second supercharging device are emitter construction.
6. the ammonia-water absorption-type refrigeration device that supercharging according to claim 1 absorbs is characterized in that described heat exchanger is the GAX heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201033830U CN201043826Y (en) | 2007-01-29 | 2007-01-29 | Supercharging-absorption ammonia absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201033830U CN201043826Y (en) | 2007-01-29 | 2007-01-29 | Supercharging-absorption ammonia absorption refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201043826Y true CN201043826Y (en) | 2008-04-02 |
Family
ID=39258719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201033830U Expired - Lifetime CN201043826Y (en) | 2007-01-29 | 2007-01-29 | Supercharging-absorption ammonia absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201043826Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944088A (en) * | 2012-11-29 | 2013-02-27 | 上海交通大学 | Refrigeration constant temperature control device driven by waste heat |
| CN104197575A (en) * | 2014-07-30 | 2014-12-10 | 中国电子科技集团公司第三十八研究所 | Efficient HGAX absorption refrigeration device |
| CN114383337A (en) * | 2021-12-21 | 2022-04-22 | 扬州大学 | Device and method for dynamically improving ammonia liquid purity in evaporator of ammonia absorption refrigeration system by utilizing ejector |
| CN115013998A (en) * | 2022-06-27 | 2022-09-06 | 张丽红 | Ammonia absorption heat pump and control method thereof |
-
2007
- 2007-01-29 CN CNU2007201033830U patent/CN201043826Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944088A (en) * | 2012-11-29 | 2013-02-27 | 上海交通大学 | Refrigeration constant temperature control device driven by waste heat |
| CN104197575A (en) * | 2014-07-30 | 2014-12-10 | 中国电子科技集团公司第三十八研究所 | Efficient HGAX absorption refrigeration device |
| CN114383337A (en) * | 2021-12-21 | 2022-04-22 | 扬州大学 | Device and method for dynamically improving ammonia liquid purity in evaporator of ammonia absorption refrigeration system by utilizing ejector |
| CN114383337B (en) * | 2021-12-21 | 2023-12-08 | 扬州大学 | Device and method for dynamically improving ammonia liquor purity in evaporator of ammonia water absorption refrigeration system by utilizing ejector |
| CN115013998A (en) * | 2022-06-27 | 2022-09-06 | 张丽红 | Ammonia absorption heat pump and control method thereof |
| CN115013998B (en) * | 2022-06-27 | 2023-05-12 | 张丽红 | Ammonia water absorption heat pump and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110345690B (en) | Double-ejector synergistic refrigeration cycle system for double-temperature refrigerator and working method | |
| CN100504242C (en) | Two-stage and multi-stage first kind absorption heat pump | |
| CN101825372A (en) | Device and method for combined ejection refrigeration and vapor compression refrigeration cycle | |
| CN101603746B (en) | Heat-insulating absorption refrigeration circulating device | |
| CN101825369A (en) | High-efficiency compact high-temperature absorption type heat pump unit | |
| CN105546863A (en) | Auto-cascade single-temperature or double-temperature refrigeration cycle system adopting ejector for synergism | |
| CN103759449B (en) | The two-stage steam compression type circulatory system of dual jet synergy | |
| CN104676958A (en) | Ejection-absorbing hybrid refrigerating and heat pump unit and operating method thereof | |
| CN101000180A (en) | Two-stage and multistage absorption refrigeration machine | |
| CN208920650U (en) | A kind of refrigeration system | |
| CN102322705B (en) | Circulating device combining diffusing absorption-type refrigeration and vapor compression refrigeration | |
| CN201043826Y (en) | Supercharging-absorption ammonia absorption refrigerator | |
| CN201255528Y (en) | Hot water type absorption heat pump unit | |
| CN101776347B (en) | Absorption type refrigerating unit with pressure recovery part | |
| CN108895708B (en) | Waste heat gradient recycling device and working method | |
| CN104792054A (en) | Ejector enhanced auto-cascade steam compressing type refrigeration cycle system | |
| CN101093118B (en) | Single stage composite absorption type compressor | |
| CN210089181U (en) | Absorption type transcritical carbon dioxide two-stage compression refrigeration system | |
| CN101603745A (en) | A kind of pressure-boosting absorptive-type auto-cascade absorption refrigeration circulating system | |
| CN104180555B (en) | A kind of cold dual effect type lithium bromide jet suction type cooling cycle system | |
| CN113883741B (en) | Absorption refrigeration system | |
| CN201340140Y (en) | Low-temperature refrigeration apparatus driven by low-temperature heat source | |
| CN201062907Y (en) | Ammonia absorption cooling/heating apparatus and device for protecting decompression inside thereof | |
| CN205137983U (en) | Economic benefits and social benefits second class absorption heat pump unit | |
| CN201062894Y (en) | Sfterheat type ammonia absorption refrigerator and device using flue gas thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080402 |