CN102980425A - Low-temperature heat exchanger - Google Patents
Low-temperature heat exchanger Download PDFInfo
- Publication number
- CN102980425A CN102980425A CN2012104550317A CN201210455031A CN102980425A CN 102980425 A CN102980425 A CN 102980425A CN 2012104550317 A CN2012104550317 A CN 2012104550317A CN 201210455031 A CN201210455031 A CN 201210455031A CN 102980425 A CN102980425 A CN 102980425A
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- exchange core
- diameter
- outlet
- nitrogen
- 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.)
- Pending
Links
Images
Landscapes
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention discloses a low-temperature heat exchanger which comprises a heat exchange core (1), an ethylene inlet (4), a nitrogen outlet (3), an ethylene outlet (5) and a nitrogen inlet (2), the ethylene inlet (4) is arranged on the upper lateral face of the heat exchange core (1), the nitrogen outlet (3) is arranged on the upper portion of the left lateral face of the heat exchange core (1), the ethylene outlet (5) and the nitrogen inlet (2) are respectively arranged on the lower portions of the left side and the right side of the heat exchange core (1). The heat exchange core (1) is an aluminum plate fin-type heat exchange core, the diameter of the ethylene inlet (4) is greater than that of the ethylene outlet (5), and the diameter of the nitrogen outlet (3) is greater than that of the nitrogen inlet (2). With the structure, the low-temperature heat exchanger which is high in heat efficiency, good in safe performance, and suitable of super-low-temperature working condition can be obtained.
Description
Technical field
The present invention relates to field of heat exchangers, relate in particular to a kind of heat exchanger that is applied under the cryogenic conditions.
Background technology
At present, the low temperature storing and transporting technology, such as the low temperature storing and transporting technology of ethene because the advantage such as its storing cost is low, storing is safe, easy to operate obtains using more and more widely.Wherein, the liquefaction of ethene is the important prerequisite that realizes this technology.Existing low-temperature heat exchange mainly adopts the conventional tube shell heat exchanger to carry out, and heat transfer effect is poor, and the volatilization of liquid nitrogen is serious, and the ethene liquefaction effect is bad, causes the huge waste of the energy.And the heat exchanger tube poor toughness, there is certain potential safety hazard in fragile under low temperatureization and cause disconnected pipe.
Summary of the invention
The technical problem to be solved in the present invention is for overcoming the deficiencies such as existing heat exchanger structure is unreasonable, heat transfer effect is poor, and existing heat exchanger is improved design, the cryogenic heat exchanger that obtain that a kind of heat exchange efficiency is high, security performance is good, is applicable to ultralow-temperature operation conditions.
For solving the problems of the technologies described above, the technical solution used in the present invention is, a kind of cryogenic heat exchanger is provided, comprise heat exchange core, be arranged on the ethene import of heat exchange core upper side, be arranged on the nitrogen outlet on the top of this heat exchange core left surface, and the ethene outlet and the nitrogen inlet that are separately positioned on the bottom of this hot core left and right side.Wherein, heat exchange core is the aluminum plate-fin type heat exchange core.The diameter of ethene import is greater than the diameter of ethene outlet, and the diameter of nitrogen outlet is greater than the diameter of nitrogen inlet.
The first preferred version of the present invention is, the diameter of ethene import is 7～7.5 times of diameter of ethene outlet.
The second preferred version of the present invention is, the diameter of nitrogen outlet is 6～7 times of diameter of nitrogen inlet.
Technical advantage of the present invention is: because this engine heat exchanger employing is that the plate fin heat-exchanging core carries out heat exchange, heat exchange area is large, and the coefficient of heat transfer is high, is conducive to the raising of heat exchange efficiency.Again because adopt be aluminium as the material of heat exchanger, mechanical performance and the intensity of aluminium in low temperature environment is still fine, even increases.When heat exchanger when to finish initial temperature be 37.8 ℃ the low-temperature heat exchange of ethene for-195 ℃ of low temperature liquid nitrogens and initial temperature, the black brittleness problem of general carbon steel can not appear, and heat exchange property and security performance all effectively improve.After the heat exchange, nitrogen becomes gaseous state by liquid state, and volume changes from small to big, and ethene becomes liquid state by gaseous state, and volume from large to small.When the diameter of the ethene import diameter greater than the ethene outlet, the diameter of nitrogen outlet is during greater than the diameter of nitrogen inlet, then can effectively keep the constant of heat exchange core internal pressure, assurance nitrogen and ethene can be finished sufficient heat exchange and smoothly circulation in heat exchange core.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the front view of cryogenic heat exchanger embodiment of the present invention.
Fig. 2 is the left view of cryogenic heat exchanger embodiment of the present invention.
The specific embodiment
By the left view of the front view of cryogenic heat exchanger shown in Figure 1 and cryogenic heat exchanger shown in Figure 2 as can be known, a kind of cryogenic heat exchanger comprises heat exchange core 1, be arranged on the ethene import 4 of this heat exchange core 1 upper side, be arranged on the nitrogen outlet 3 on the top of this heat exchange core 1 left surface, and the ethene outlet 5 and the nitrogen inlet 2 that are separately positioned on the bottom of this heat exchange core 1 left and right side.Wherein, heat exchange core 1 is the aluminum plate-fin type heat exchange core, and the diameter of ethene import 4 is greater than the diameter of ethene outlet 5, and the diameter of nitrogen outlet 3 is greater than the diameter of nitrogen inlet 2.
In addition, be 7～7.5 times of diameter of ethene outlet 5 when the diameter of ethene import 4, when the diameter of nitrogen outlet 3 is 6～7 times of diameter of nitrogen inlet 2, after low temperature nitrogen and ethene carry out heat exchange, all undergo phase transition, such import and export design can effectively guarantee nitrogen and ethene sufficient heat exchange and the maintenance heat exchange core 1 interior invariablenes pressure of liquid in heat exchange core 1, can not make heat exchanger produce distortion and leakage.
During use equipment, temperature enters heat exchange core 1 for-195 ℃ of low temperature liquid nitrogens from the nitrogen inlet 2 of the bottom that is arranged in heat exchange core 1 right flank, and temperature to be 37.8 ℃ ethene enter heat exchange core 1 from the ethene import 4 that is arranged in heat exchange core 1 upper side.Both carry out heat exchange in heat exchange core 1 after, liquid nitrogen heat absorption is vaporized into temperature for-68 ℃ the nitrogen nitrogen outlet 3 from the top of heat exchange core 1 left surface flows out, and is liquefied as temperature after the heat of gaseous ethylene is absorbed by liquid nitrogen and flows out from the ethene outlet 5 of the bottom of heat exchange core 1 left surface for-120 ℃ liquid ethylene.Because what heat exchange core 1 adopted is the aluminum plate-fin type heat exchange core, so that under such ultra-low temperature surroundings, heat exchange core 1 still has higher mechanical performance and intensity, heat exchange efficiency is high, and security performance is good.
The present invention is not limited to the above-described embodiment and examples, in the ken that the art personnel possess, can also make a variety of changes without departing from the inventive concept of the premise.
Claims (3)
1. cryogenic heat exchanger, comprise heat exchange core (1), be arranged on the ethene import (4) of this heat exchange core (1) upper side, be arranged on the nitrogen outlet (3) on the top of this heat exchange core (1) left surface, and the ethene outlet (5) and the nitrogen inlet (2) that are separately positioned on the bottom of this heat exchange core (1) left and right side, it is characterized in that: described heat exchange core (1) is the aluminum plate-fin type heat exchange core, the diameter of described ethene import (4) exports the diameter of (5) greater than described ethene, and the diameter of described nitrogen outlet (3) is greater than the diameter of described nitrogen inlet (2).
2. according to cryogenic heat exchanger claimed in claim 1, it is characterized in that: the diameter of described ethene import (4) is 7～7.5 times of diameter of described ethene outlet (5).
3. according to claim 1 or 2 described cryogenic heat exchangers, it is characterized in that: the diameter of described nitrogen outlet (3) is 6～7 times of diameter of described nitrogen inlet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104550317A CN102980425A (en) | 2012-11-14 | 2012-11-14 | Low-temperature heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104550317A CN102980425A (en) | 2012-11-14 | 2012-11-14 | Low-temperature heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102980425A true CN102980425A (en) | 2013-03-20 |
Family
ID=47854670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104550317A Pending CN102980425A (en) | 2012-11-14 | 2012-11-14 | Low-temperature heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102980425A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953525A (en) * | 2016-06-24 | 2016-09-21 | 无锡市豫达换热器有限公司 | Novel nitrogen condensation type natural gas heat exchanger |
| CN109059367A (en) * | 2018-07-17 | 2018-12-21 | 张同庆 | A kind of air conditioner freon reclaiming method |
| CN109059368A (en) * | 2018-07-17 | 2018-12-21 | 张同庆 | A kind of air conditioner freon reclaiming device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141892A (en) * | 1991-11-18 | 1993-06-08 | Osaka Gas Co Ltd | Heat exchanger |
| CN201651761U (en) * | 2010-01-28 | 2010-11-24 | 天津市奥利达燃气设备技术有限公司 | Horizontal nitrogen vaporizer |
| CN101981365A (en) * | 2008-03-27 | 2011-02-23 | 乔治洛德方法研究和开发液化空气有限公司 | Method for vaporizing cryogenic liquid through heat exchange using calorigenic fluid |
| CN202082606U (en) * | 2011-05-24 | 2011-12-21 | 苏州新锐低温设备有限公司 | Warm-water circulating water-bath gasification device |
| CN202956009U (en) * | 2012-11-14 | 2013-05-29 | 无锡豫达换热器有限公司 | Low-temperature heat exchanger |
-
2012
- 2012-11-14 CN CN2012104550317A patent/CN102980425A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141892A (en) * | 1991-11-18 | 1993-06-08 | Osaka Gas Co Ltd | Heat exchanger |
| CN101981365A (en) * | 2008-03-27 | 2011-02-23 | 乔治洛德方法研究和开发液化空气有限公司 | Method for vaporizing cryogenic liquid through heat exchange using calorigenic fluid |
| CN201651761U (en) * | 2010-01-28 | 2010-11-24 | 天津市奥利达燃气设备技术有限公司 | Horizontal nitrogen vaporizer |
| CN202082606U (en) * | 2011-05-24 | 2011-12-21 | 苏州新锐低温设备有限公司 | Warm-water circulating water-bath gasification device |
| CN202956009U (en) * | 2012-11-14 | 2013-05-29 | 无锡豫达换热器有限公司 | Low-temperature heat exchanger |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953525A (en) * | 2016-06-24 | 2016-09-21 | 无锡市豫达换热器有限公司 | Novel nitrogen condensation type natural gas heat exchanger |
| CN109059367A (en) * | 2018-07-17 | 2018-12-21 | 张同庆 | A kind of air conditioner freon reclaiming method |
| CN109059368A (en) * | 2018-07-17 | 2018-12-21 | 张同庆 | A kind of air conditioner freon reclaiming device |
| CN109059367B (en) * | 2018-07-17 | 2020-09-29 | 泰州程顺制冷设备有限公司 | Air conditioner Freon recovery and regeneration method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103808060B (en) | Band flash vessel two-stage absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit | |
| CN206352906U (en) | A kind of exhaust steam direct-absorption type lithium bromide heat pump system | |
| CN102980425A (en) | Low-temperature heat exchanger | |
| CN203561058U (en) | Hot water unit of carbon dioxide heat pump | |
| CN106091574A (en) | Gas liquefaction device with compression heat recovery function and liquefaction method thereof | |
| CN202956009U (en) | Low-temperature heat exchanger | |
| CN204472492U (en) | A kind of commercial refrigeration car LNG cold energy recovery system | |
| CN101093118B (en) | Single stage composite absorption type compressor | |
| CN204478575U (en) | Efficient large temperature difference suction-type lithium bromide two class heat pump | |
| CN204255129U (en) | A kind of cooling tower | |
| CN207797462U (en) | Gas recovery system for oil not stop defrosting device | |
| CN103808058B (en) | Band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit | |
| CN203837330U (en) | CO2 heat pump heat exchange enthalpy increase device | |
| CN207792672U (en) | A kind of gas recovery system for oil | |
| CN103175331B (en) | Branch circulation type II absorption heat pump | |
| CN204594028U (en) | The energy-conservation feeding mechanism of technique chilled water | |
| CN202951273U (en) | Energy-saving type condensing tank | |
| CN202835901U (en) | Lithium bromide absorption type first kind heat pump unit usable in winter and summer | |
| CN202956010U (en) | Heat exchanger capable of recycling natural gas cold energy | |
| CN202630508U (en) | Open type heat pump device | |
| US9689591B2 (en) | Sectional regenerative third-type absorption heat pump | |
| CN202403442U (en) | Small absorption refrigeration device | |
| CN206618156U (en) | A kind of efficient refrigerator heat exchanger | |
| CN105180507A (en) | Self-overlapping vortex tube absorbing refrigerating system | |
| CN204514120U (en) | composite heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |