CN201062907Y - Ammonia absorption cooling/heating apparatus and device for protecting decompression inside thereof - Google Patents
Ammonia absorption cooling/heating apparatus and device for protecting decompression inside thereof Download PDFInfo
- Publication number
- CN201062907Y CN201062907Y CNU2007201495454U CN200720149545U CN201062907Y CN 201062907 Y CN201062907 Y CN 201062907Y CN U2007201495454 U CNU2007201495454 U CN U2007201495454U CN 200720149545 U CN200720149545 U CN 200720149545U CN 201062907 Y CN201062907 Y CN 201062907Y
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- Prior art keywords
- ammonia
- generator
- outlet
- segregator
- heating machine
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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 utility model discloses an ammonia-water absorption type refrigeration and heating machine and an internal pressure relief protective device. The ammonia water absorption type refrigeration and heating machine comprises: a generator, a partial condenser, a condenser, an evaporator, an absorber, a super-cooler, a GAX heat exchanger, a solution pump, a dilute solution throttle valve, a first expansion valve, a second expansion valve and an internal pressure relief protective device. For the circulation of the liquid and air, a high pressure and a low pressure system are formed in the whole circulating system, wherein, the generator, the partial condenser and the condenser are high pressure system, and the evaporator and the absorber are low pressure system. When a transient high pressure is generated in the generator of the ammonia water absorption type refrigeration (heating) machine due to the change of the fuel flow rate or the other reasons, an internal pressure relief valve shall open to release the high pressure gas in the generator into the GAX heat changer of the low pressure part, so that the opening of the system safety can be avoided, and the system refrigeration medium can be prevented from damaging by the transient high pressure. The utility model can be extensively used in the ammonia water absorption type refrigeration and heating machine.
Description
Technical field
The utility model relates to a kind of protective device of refrigeration plant, particularly relates to a kind of ammonia water absorbing cooling and heating machine and inner decompression protection device thereof.
Background technology
The application of ammonia absorption refrigerator was early 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, the ammonia absorption type refrigeration still has irreplaceable space.Early stage ammonia absorption refrigerator, bulky, it is more that the manufacturing of equipment expends steel, and refrigerating efficiency is low.Many in recent years companies and research institution make the continuous miniaturization of ammonia absorption refrigerator through constantly research and improvement, and refrigerating efficiency also has raising.
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 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, and 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.
The utility model content
For addressing the above problem, the purpose of this utility model is to propose a kind of ammonia water absorbing cooling and heating machine and inner decompression protection device thereof, to be easy to generate the problem of up time high pressure in the generator that solves ammonia absorption type refrigeration (heat) machine.
For achieving the above object, the utility model proposes a kind of inside decompression protection device of ammonia water absorbing cooling and heating machine, comprising: generator, segregator, condenser, evaporimeter, absorber, subcooler; the GAX heat exchanger, solution pump, weak solution choke valve; first expansion valve, second expansion valve.Described structure is divided into gas circuit and liquid road two parts closed circuit.The ammonia road connected mode of described structure: generator ammonia outlet is connected with segregator ammonia inlet, the segregator ammonia outlet is connected with condenser inlet, condensator outlet is connected with first expansion valve, first expansion valve is connected with subcooler ammoniacal liquor inlet, the outlet of subcooler ammoniacal liquor is connected with second expansion valve, second expansion valve is connected with evaporator inlet, and evaporator outlet is connected with subcooler ammonia inlet, and the subcooler ammonia outlet is connected with GAX heat exchanger ammonia inlet.The solution road connected mode of described structure: the weak solution outlet of generator is connected with the weak solution choke valve, the weak solution choke valve is connected with the weak solution inlet of GAX heat exchanger, the taphole of GAX heat exchanger is connected with the absorber inlet, the outlet of absorber is connected with the solution pump inlet, heat exchange coil inlet in solution delivery side of pump and the segregator is connected, the heat exchange coil outlet of segregator is connected with the heat exchange coil inlet of GAX heat exchanger, the heat exchange coil outlet of GAX heat exchanger is connected with generator concentrated solution liquid return hole, described generator, segregator and condenser constitute high-pressure system, wherein, also comprise: a relief valve, arrival end is communicated with described high-pressure system by pipeline, and the port of export is communicated with described subcooler ammonia outlet by pipeline.
The inside decompression protection device of above-mentioned ammonia water absorbing cooling and heating machine, wherein, described relief valve arrival end is communicated with described generator ammonia outlet by pipeline.
The inside decompression protection device of above-mentioned ammonia water absorbing cooling and heating machine, wherein, described relief valve arrival end is communicated with described segregator ammonia outlet by pipeline.
The inside decompression protection device of above-mentioned ammonia water absorbing cooling and heating machine, wherein, described relief valve is the simple metal structure.
The inside decompression protection device of above-mentioned ammonia water absorbing cooling and heating machine, wherein, described relief valve is by metallic hard contact sealing.
In order to realize above-mentioned purpose better; the utility model also provides a kind of ammonia water absorbing cooling and heating machine; comprise: generator; segregator; condenser; the ammonia water absorbing cooling and heating machine of subcooler and GAX heat exchanger; 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; described subcooler ammonia outlet is connected with described GAX heat exchanger ammonia inlet; described generator; segregator and condenser constitute high-pressure system; wherein; also comprise an inner decompression protection device; comprise: a relief valve; arrival end is communicated with described high-pressure system by pipeline, and the port of export is communicated with described subcooler ammonia outlet by pipeline.
Above-mentioned ammonia water absorbing cooling and heating machine, wherein, described relief valve arrival end is communicated with described generator ammonia outlet by pipeline.
Above-mentioned ammonia water absorbing cooling and heating machine, wherein, described relief valve arrival end is communicated with described segregator ammonia outlet by pipeline.
Above-mentioned ammonia water absorbing cooling and heating machine, wherein, described relief valve is the simple metal structure.
The inside decompression protection device of above-mentioned ammonia water absorbing cooling and heating machine is characterized in that, described relief valve is by metallic hard contact sealing.
The utility model is simple in structure, has solved the problem that is easy to generate instantaneous high pressure in the generator of ammonia absorption type refrigeration (heat) machine, and refrigeration (heat) medium that can guarantee unit simultaneously again can not opened because of safety valve and lose.
Description of drawings
Fig. 1 is ammonia absorption type refrigeration (heat) the apparatus structure schematic flow sheet of known technology;
Fig. 2 A is the structure schematic flow sheet of inside decompression protection device of ammonia absorption type refrigeration (heat) machine of the utility model first embodiment;
Fig. 2 B is the structure schematic flow sheet of inside decompression protection device of ammonia absorption type refrigeration (heat) machine of the utility model second embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described.
Shown in Fig. 2 A and Fig. 2 B, be respectively two embodiment of the present utility model.Two embodiment provide a kind of inside decompression protection device of ammonia water absorbing cooling and heating machine respectively; wherein; in first embodiment; relief valve 13 is installed on existing ammonia absorption type refrigeration (heat) machine; relief valve 13 inlets are communicated with (Fig. 2 A) by pipeline with segregator 2 tops (being segregator 2 ammonia outlet); in a second embodiment; relief valve 13 is installed on existing ammonia absorption type refrigeration (heat) machine; relief valve 13 inlets are communicated with (Fig. 2 B) by pipeline with generator 1 top (being generator 1 ammonia outlet), and relief valve 13 outlets are communicated with subcooler 7 ammonia outlet by pipeline.
Process of gas path: the ammoniacal liquor concentrated solution in generator 1 through the heating after, produce the ammonia of HTHP and the mist and the ammoniacal liquor weak solution of water vapour, the mist of HTHP is through generator 1 top and segregator 2 rectifying, water recovery becomes aqueous water to be back in the generator 1, the ammonia of high temperature is discharged through segregator 2 ammonia outlet, enter condenser 4, after condenser 4 condensations, the ammonia of HTHP becomes the liquid ammonia of cryogenic high pressure, ammoniacal liquor pressure after 10 throttlings of first expansion valve reduces, enter subcooler 7, carry out heat exchange with the ammonia of the low-temp low-pressure that comes out from evaporimeter 5, ammoniacal liquor after heat exchange pressure after 11 throttlings of second expansion valve further reduces, and enters evaporator evaporation.Ammoniacal liquor becomes the ammonia of low-temp low-pressure after evaporimeter 5 heat exchange, ammonia is discharged through evaporimeter 5 outlets, enters subcooler 7 and carries out heat exchange, and the ammonia after subcooler 7 heat exchange enters the GAX heat exchanger.
Liquid road flow process: the ammoniacal liquor weak solution of discharging from generator 1 enters GAX heat exchanger 3 and joins with the ammonia that subcooler 7 comes out, carry out preliminary absorption and heat release, the mixture of solution and ammonia is discharged from the bottom of GAX heat exchanger 3 and is entered absorber 6, further absorb and form the ammoniacal liquor concentrated solution, after the ammoniacal liquor concentrated solution is come out from absorber 6, through solution pump 8 pressurizations, enter the ammonia of segregator 2 heat exchange coils and HTHP and the mist of water vapour and carry out heat exchange, the ammoniacal liquor concentrated solution after the heat exchange is carried out heat exchange from entering GAX heat exchanger 3 heat exchange coils again after segregator 2 comes out.Ammoniacal liquor concentrated solution after heat exchange enters generator from generator 1 top at last.
Whole circulation system by the circulation of gas and liquid, has constituted high pressure and low pressure two parts system, generator 1, and segregator 2, condenser 4 is a high-pressure system.Evaporimeter 5, absorber 6 is a low-pressure system, subcooler 7 and GAX heat exchanger 3 exist high pressure and low pressure two parts.
When the generator 1 of ammonia absorption type refrigeration (heat) machine because fuel flow rate changes or other reasons when producing inner instantaneous high pressure, inner relief valve 13 will be opened, the gases at high pressure of generator 1 are let out in the system low-voltage part GAX heat exchanger 3, avoided the unlatching of security of system valve, guaranteed that system's refrigerant can not lose because of instantaneous high pressure.
In addition, relief valve 13 is the simple metal structure, by metallic hard contact sealing.
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; be familiar with those of ordinary skill in the art and work as and to 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 (10)
1. inner decompression protection device; be installed on and comprise: the ammonia water absorbing cooling and heating machine of generator, segregator, condenser, subcooler and GAX heat exchanger; 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; described subcooler ammonia outlet is connected with described GAX heat exchanger ammonia inlet; described generator, segregator and condenser constitute high-pressure system; it is characterized in that; also comprise: an inner decompression protection device comprises:
One relief valve, arrival end is communicated with described high-pressure system by pipeline, and the port of export is communicated with described subcooler ammonia outlet by pipeline.
2. the inside decompression protection device of ammonia water absorbing cooling and heating machine according to claim 1 is characterized in that described relief valve arrival end is communicated with described generator ammonia outlet by pipeline.
3. the inside decompression protection device of ammonia water absorbing cooling and heating machine according to claim 1 is characterized in that, described relief valve arrival end is communicated with described segregator ammonia outlet by pipeline.
4. the inside decompression protection device of ammonia water absorbing cooling and heating machine according to claim 1 is characterized in that described relief valve is the simple metal structure.
5. the inside decompression protection device of ammonia water absorbing cooling and heating machine according to claim 4 is characterized in that, described relief valve is by metallic hard contact sealing.
6. ammonia water absorbing cooling and heating machine; comprise: generator; segregator; condenser; the ammonia water absorbing cooling and heating machine of subcooler and GAX heat exchanger; 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; described subcooler ammonia outlet is connected with described GAX heat exchanger ammonia inlet; described generator; segregator and condenser constitute high-pressure system; it is characterized in that; also comprise an inner decompression protection device; comprise: a relief valve; arrival end is communicated with described high-pressure system by pipeline, and the port of export is communicated with described subcooler ammonia outlet by pipeline.
7. ammonia water absorbing cooling and heating machine according to claim 6 is characterized in that, described relief valve arrival end is communicated with described generator ammonia outlet by pipeline.
8. ammonia water absorbing cooling and heating machine according to claim 6 is characterized in that, described relief valve arrival end is communicated with described segregator ammonia outlet by pipeline.
9. ammonia water absorbing cooling and heating machine according to claim 6 is characterized in that, described relief valve is the simple metal structure.
10. the inside decompression protection device of ammonia water absorbing cooling and heating machine according to claim 9 is characterized in that, described relief valve is by metallic hard contact sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201495454U CN201062907Y (en) | 2007-06-08 | 2007-06-08 | Ammonia absorption cooling/heating apparatus and device for protecting decompression inside thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201495454U CN201062907Y (en) | 2007-06-08 | 2007-06-08 | Ammonia absorption cooling/heating apparatus and device for protecting decompression inside thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201062907Y true CN201062907Y (en) | 2008-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201495454U Expired - Lifetime CN201062907Y (en) | 2007-06-08 | 2007-06-08 | Ammonia absorption cooling/heating apparatus and device for protecting decompression inside thereof |
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| CN (1) | CN201062907Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245126A (en) * | 2013-04-09 | 2013-08-14 | 天津大学 | Cold electric double-effect waste heat recovery system for marine engine |
| CN103277931A (en) * | 2013-06-25 | 2013-09-04 | 东南大学 | Nanofluid ammonia water absorption refrigeration cycle device |
| CN113739443A (en) * | 2021-09-18 | 2021-12-03 | 安徽普泛能源技术有限公司 | Refrigeration system with desorption tower as generator and operation method thereof |
-
2007
- 2007-06-08 CN CNU2007201495454U patent/CN201062907Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245126A (en) * | 2013-04-09 | 2013-08-14 | 天津大学 | Cold electric double-effect waste heat recovery system for marine engine |
| CN103277931A (en) * | 2013-06-25 | 2013-09-04 | 东南大学 | Nanofluid ammonia water absorption refrigeration cycle device |
| CN103277931B (en) * | 2013-06-25 | 2015-04-15 | 东南大学 | Nanofluid ammonia water absorption refrigeration cycle device |
| CN113739443A (en) * | 2021-09-18 | 2021-12-03 | 安徽普泛能源技术有限公司 | Refrigeration system with desorption tower as generator and operation method thereof |
| CN113739443B (en) * | 2021-09-18 | 2022-11-22 | 安徽普泛能源技术有限公司 | Refrigerating system with desorption tower as generator and operation method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080521 |
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| CX01 | Expiry of patent term |