CN104006581A - Novel ammonia refrigeration condenser - Google Patents
Novel ammonia refrigeration condenser Download PDFInfo
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- CN104006581A CN104006581A CN201410278677.1A CN201410278677A CN104006581A CN 104006581 A CN104006581 A CN 104006581A CN 201410278677 A CN201410278677 A CN 201410278677A CN 104006581 A CN104006581 A CN 104006581A
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- heat exchanger
- ammonia
- injector
- shell
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses a novel ammonia refrigeration condenser which comprises a shell-and-tube heat exchanger, a circulating tube and an ejector. A lower tube pass of the shell-and-tube heat exchanger is connected with a cooling water inlet tube, an upper tube pass of the shell-and-tube heat exchanger is connected with a cooling water outlet tube, and an inlet of ammonia steam to be liquefied and condensed enters the top of a shell pass of the shell-and-tube heat exchanger through the ejector. The ejector comprises a spray tube, an expansion tube and an ejector tube wall, the position, with a large opening, of the spray tube is connected with the inlet of the ammonia steam to be liquefied and condensed, the position, with a small opening, of the spray tube is connected with the position, with a small opening, of the expansion tube, an annular clearance is formed in the connecting position, the position, with a large opening, of the expansion tube is communicated with the top of the shell pass of the shell-and-tube heat exchanger, a sealed cavity is formed by the ejector tube wall, the wall of the spray tube and the wall of the expansion wall, and the cavity is communicated with the circulating tube. According to the novel ammonia refrigeration condenser, the influence of an air enrichment film on ammonia steam condensation and liquidation is ingeniously and reasonably removed based on the Venturi effect, the efficiency and work performance of an ammonia refrigeration device are improved, electric power is saved, the structure is simple, and high practicality is achieved.
Description
Technical field
The present invention relates in a kind of ammonia refrigerating installation the condenser for ammoniacal liquor and condensation.
Background technology
Ammonia has good thermodynamic property, in relatively large refrigeration system, is all generally to adopt ammonia as cold-producing medium.In compression, condensation, throttling, evaporation four steps of refrigeration circulate, the condensation of ammonia is wherein one of four step circulations, ammonia condenser is exactly to utilize recirculated water heat exchange to realize the condensation liquefaction of ammonia steam, and the general design pressure of ammonia condenser approaches 2.5MP, is typical pressure vessel.
In the condensation cycle of ammonia, overall heat-transfer coefficient is affected by more factor, the incoagulable gas of wherein being sneaked into wherein affects very large, incoagulable gas in actual production is exactly generally air, in the condensation process at ammonia steam, ammonia steam orientation is shifted to heat exchange surface heat exchange condensation, as long as there is a small amount of incoagulable gas will be enriched in heat exchange surface in such process, forms air enrichment film.
Ammonia steam will be realized condensation, must produce very large resistance to mass tranfer with diffusion way through air film, directly makes overall heat-transfer coefficient drop to very low, has a strong impact on condensation process.Once condensing pressure rises, directly make Compressor Discharge Pressure raise, cause compressor power consumption severe overweight, cause refrigeration to worsen.
Although there is air separator in ammonia refrigeration system, state-of-the-art air separator also can not be removed the incoagulable gas such as air in system 100%, thereby need to eliminate the impact of air enrichment film as far as possible, improves the coefficient of heat transfer.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art exactly, a kind of novel ammonia refrigeration condenser is provided, this condenser passes through Venturi effect, the ingenious rational impact of air enrichment film on ammonia steam-condensation and liquefaction of having eliminated, improve condensation and the liquefaction efficiency of ammonia steam, thereby improved the service behaviour of ammonia refrigerating installation, saved electric power, there is feature simple in structure, practical.
For overcoming the deficiencies in the prior art, the present invention takes following technical scheme:
A kind of novel ammonia refrigeration condenser, comprise tubular heat exchanger, circulation pipe and injector, it is characterized in that: the lower tube side of tubular heat exchanger connects cooling water inlet pipe, upper tube side connects cooling water outlet pipe, the ammonia steam inlet for the treatment of liquefaction and condensation enters the top of tubular heat exchanger shell side through injector, the middle and lower part of tubular heat exchanger shell side is communicated with injector through circulation pipe; Injector comprises jet pipe, convergent divergent channel and injector tube wall, jet pipe opening larger part connects the ammonia steam inlet for the treatment of liquefaction and condensation, opening smaller part connects convergent divergent channel opening smaller part and there is annular space junction, convergent divergent channel opening larger part is connected the top of tubular heat exchanger shell side, injector tube wall and jet pipe tube wall, convergent divergent channel tube wall form airtight cavity, and cavity and circulation pipe are connected.
The design's core is on the basis of traditional ammonia refrigeration condenser structure, to add an injector, and injector, because ammonia steam sprays into generation Venturi effect, makes whole condenser inner high voltage γ-ray emission convective motion, produces ascending air in circulation pipe.
When treating that the ammonia steam of liquefaction and condensation imports from air inlet, while making gas spray into convergent divergent channel at a relatively high speed by jet pipe, can produce certain low pressure at injector walls inner chamber, low pressure can be impelled the gas in circulation pipe to be inhaled into and from convergent divergent channel, discharge Venturi effect that similar pump sucks continuously, Here it is.
Key of the present invention is the gas circulation function that will produce suction, discharge, so jet pipe and convergent divergent channel have improved ammonia steam flow rate by reducing, produces negative pressure and circulate with regard to driving whole condenser to form airflow convection by circulation pipe in cavity.
Although area of injection orifice progressively reduces, but it is very little that throttling produces resistance, causing that Compressor Discharge Pressure raises also can ignore completely, the impact of compressor is far smaller than because micro-incoagulable gas exists and affects the Compressor Discharge Pressure that condensation produces and increase, thereby can not cause the increase of compressor power consumption.
Adopt this injector to drive the internal high pressure ammonia vapor recycle of condenser, just can realize continuous disturbance and abolish air enrichment film, thereby greatly improving the overall heat-transfer coefficient in ammonia Condensation, reducing ammonia condensing pressure, Compressor Discharge Pressure is reduced, and compressor power consumption reduces.
Compared with prior art, beneficial effect of the present invention is:
Do not have moving component, structural design ingenious especially, simple, reasonable, utilize to spray drive bulk convection can not stop disturbance and destroy air enrichment film, real-time update heat-transfer surface, keeps higher overall heat-transfer coefficient; Improve overall heat-transfer coefficient, just can reduce ammonia condensing pressure, thereby reduced Compressor Discharge Pressure, reduced power consumption; Ammonia steam throttling injection degree is very little, can not cause that power consumption exceeds standard; Equipment is simple, reliable, does not need manual operation and maintenance.
Accompanying drawing explanation
Fig. 1 is the planar structure schematic diagram of novel ammonia refrigeration condenser.
Fig. 2 is the plane enlarged drawing of injector.
In figure, each label represents:
1, cooling water outlet pipe; 2, heat exchanger tube upper cover; 3, wait to liquefy and the ammonia steam inlet of condensation; 4, injector; 5, circulation pipe; 6, heat exchanger outer wall; 7, heat exchanger tube; 8, ammoniacal liquor recycle control valve; 9, heat exchanger tube low head; 10, cooling water inlet pipe; 11, injector tube wall; 12, jet pipe; 13 convergent divergent channels.
The specific embodiment
Now by reference to the accompanying drawings, the present invention is further illustrated.
Novel ammonia refrigeration condenser as depicted in figs. 1 and 2, comprise tubular heat exchanger, circulation pipe 5 and injector 4, the lower tube side of tubular heat exchanger connects cooling water inlet pipe 1, upper tube side connects cooling water outlet pipe 10, the ammonia steam inlet 3 for the treatment of liquefaction and condensation enters the top of tubular heat exchanger shell side through injector 4, the middle and lower part of tubular heat exchanger shell side is communicated with 4 through circulation pipe 5 with injector; Injector 4 comprises jet pipe 12, convergent divergent channel 13 and injector tube wall 11, jet pipe 12 opening larger parts connect the ammonia steam inlet 3 for the treatment of liquefaction and condensation, opening smaller part connects convergent divergent channel 13 opening smaller parts and there is annular space junction, convergent divergent channel 13 opening larger parts are connected the top of tubular heat exchanger shell side, injector tube wall 11 forms airtight cavity with jet pipe 12 tube walls, convergent divergent channel 13 tube walls, and cavity and circulation pipe 5 are connected.
The design's core is on the basis of traditional ammonia refrigeration condenser structure, to add an injector 4, and injector 4, because ammonia steam sprays into generation Venturi effect, makes whole condenser inner high voltage γ-ray emission convective motion, at the interior generation ascending air of circulation pipe 5.
When treating that the ammonia steam of liquefaction and condensation imports from air inlet 3, while making gas spray into convergent divergent channel 13 at a relatively high speed by jet pipe 12, can produce certain low pressure at injector walls inner chamber, low pressure can be impelled the gas in circulation pipe 5 to be inhaled into and from convergent divergent channel 13, discharge Venturi effect that similar pump sucks continuously, Here it is.
Key of the present invention is the gas circulation function that will produce suction, discharge, so jet pipe 12 and convergent divergent channel 13 have improved ammonia steam flow rate by reducing, produces negative pressure and just can drive whole condenser to circulate by circulation pipe 5 formation airflow convections in cavity.
Although area of injection orifice progressively reduces, but it is very little that throttling produces resistance, causing that Compressor Discharge Pressure raises also can ignore completely, the impact of compressor is far smaller than because micro-incoagulable gas exists and affects the Compressor Discharge Pressure that condensation produces and increase, thereby can not cause the increase of compressor power consumption.
Adopt this injector 4 to drive the internal high pressure ammonia vapor recycle of condenser, just can realize continuous disturbance and abolish air enrichment film, thereby greatly improving the overall heat-transfer coefficient in ammonia Condensation, reducing ammonia condensing pressure, Compressor Discharge Pressure is reduced, and compressor power consumption reduces.
Above-mentioned is preferred embodiment of the present invention, not the present invention is done to any pro forma restriction.Any those of ordinary skill in the art, in the situation that not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible changes and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solution of the present invention,, all should drop in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to the technology of the present invention essence.
Claims (1)
1. a novel ammonia refrigeration condenser, comprise tubular heat exchanger, circulation pipe and injector, it is characterized in that: the lower tube side of tubular heat exchanger connects cooling water inlet pipe, upper tube side connects cooling water outlet pipe, the ammonia steam inlet for the treatment of liquefaction and condensation enters the top of tubular heat exchanger shell side through injector, the middle and lower part of tubular heat exchanger shell side is communicated with injector through circulation pipe; Injector comprises jet pipe, convergent divergent channel and injector tube wall, jet pipe opening larger part connects the ammonia steam inlet for the treatment of liquefaction and condensation, opening smaller part connects convergent divergent channel opening smaller part and there is annular space junction, convergent divergent channel opening larger part is connected the top of tubular heat exchanger shell side, injector tube wall and jet pipe tube wall, convergent divergent channel tube wall form airtight cavity, and cavity and circulation pipe are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410278677.1A CN104006581B (en) | 2014-06-21 | 2014-06-21 | Novel ammonia refrigeration condenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410278677.1A CN104006581B (en) | 2014-06-21 | 2014-06-21 | Novel ammonia refrigeration condenser |
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| Publication Number | Publication Date |
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| CN104006581A true CN104006581A (en) | 2014-08-27 |
| CN104006581B CN104006581B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410278677.1A Active CN104006581B (en) | 2014-06-21 | 2014-06-21 | Novel ammonia refrigeration condenser |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839536A (en) * | 2017-03-23 | 2017-06-13 | 烟台冰轮股份有限公司 | A kind of heat pump intercooler |
| CN107934987A (en) * | 2017-12-21 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | One kind removes crystallization from wash type ammonia condensing cooling device |
| CN108784143A (en) * | 2018-06-07 | 2018-11-13 | 蒙城县信德木业有限公司 | A kind of showing stand of agricultural and sideline product purchase and sale adjustable height and angle |
| CN110907016A (en) * | 2019-12-06 | 2020-03-24 | 河南开祥精细化工有限公司 | Liquid level measuring device based on sonar external measurement type methanol-ammonia cooler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070000262A1 (en) * | 2005-06-30 | 2007-01-04 | Denso Corporation | Ejector cycle system |
| CN2876633Y (en) * | 2005-12-29 | 2007-03-07 | 张步健 | Parallel pipe type condenser |
| WO2007055635A1 (en) * | 2005-11-10 | 2007-05-18 | Ericsson, Svenning | Elector pump in device for cooling/heating systems |
| CN203881009U (en) * | 2014-06-21 | 2014-10-15 | 吉首大学 | Novel ammonia refrigeration condenser |
-
2014
- 2014-06-21 CN CN201410278677.1A patent/CN104006581B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070000262A1 (en) * | 2005-06-30 | 2007-01-04 | Denso Corporation | Ejector cycle system |
| WO2007055635A1 (en) * | 2005-11-10 | 2007-05-18 | Ericsson, Svenning | Elector pump in device for cooling/heating systems |
| CN2876633Y (en) * | 2005-12-29 | 2007-03-07 | 张步健 | Parallel pipe type condenser |
| CN203881009U (en) * | 2014-06-21 | 2014-10-15 | 吉首大学 | Novel ammonia refrigeration condenser |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839536A (en) * | 2017-03-23 | 2017-06-13 | 烟台冰轮股份有限公司 | A kind of heat pump intercooler |
| CN107934987A (en) * | 2017-12-21 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | One kind removes crystallization from wash type ammonia condensing cooling device |
| CN107934987B (en) * | 2017-12-21 | 2024-05-14 | 中冶焦耐(大连)工程技术有限公司 | Remove crystallization from washing formula ammonia condensation cooling device |
| CN108784143A (en) * | 2018-06-07 | 2018-11-13 | 蒙城县信德木业有限公司 | A kind of showing stand of agricultural and sideline product purchase and sale adjustable height and angle |
| CN110907016A (en) * | 2019-12-06 | 2020-03-24 | 河南开祥精细化工有限公司 | Liquid level measuring device based on sonar external measurement type methanol-ammonia cooler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104006581B (en) | 2016-01-20 |
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Effective date of registration: 20181220 Address after: 401120 No. 7, East Airport Road, Shuangfengqiao Street, Yubei District, Chongqing Patentee after: Chongqing Brilliant Aluminum Furniture Co., Ltd. Address before: 416000 No. 120 Renmin South Road, Jishou City, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Patentee before: Jishou University |
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Effective date of registration: 20201102 Address after: Room 239, block B, e-commerce Industrial Park, No. 33, Shangxi Road, Shanghe County, Jinan City, Shandong Province Patentee after: Jinan Jiaofeng Intelligent Equipment Co.,Ltd. Address before: 401120 No. 7, East Airport Road, Shuangfengqiao Street, Yubei District, Chongqing Patentee before: Chongqing Brilliant Aluminum Furniture Co.,Ltd. |
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Effective date of registration: 20210713 Address after: Room 239, block B, block F, e-commerce Industrial Park, No. 33, Shangxi Road, Shanghe County, Jinan City, Shandong Province Patentee after: JINAN GAORUI BIOTECHNOLOGY Co.,Ltd. Address before: Room 239, block B, block F, e-commerce Industrial Park, No. 33, Shangxi Road, Shanghe County, Jinan City, Shandong Province Patentee before: Jinan Jiaofeng Intelligent Equipment Co.,Ltd. |