CN101806529A - Integrated main heat exchanger and subcooler - Google Patents
Integrated main heat exchanger and subcooler Download PDFInfo
- Publication number
- CN101806529A CN101806529A CN201010123992A CN201010123992A CN101806529A CN 101806529 A CN101806529 A CN 101806529A CN 201010123992 A CN201010123992 A CN 201010123992A CN 201010123992 A CN201010123992 A CN 201010123992A CN 101806529 A CN101806529 A CN 101806529A
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- China
- Prior art keywords
- nitrogen
- heat exchange
- liquid
- air
- exchange runner
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/04236—Integration of different exchangers in a single core, so-called integrated cores
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/0423—Subcooling of liquid process streams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
- F25J5/002—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention discloses an integrated main heat exchanger and subcooler, comprising at least one main heat exchanger core body part and a subcooler core body part, wherein the main heat exchanger core part(s) is/are used for performing heat exchange between the air and/or the pressurized air and backflow gas which consists of the oxygen and/or the nitrogen and/or the polluted nitrogen in respective heat exchange passageway, and the subcooler core part is used for performing heat exchange between the liquid air and/or the liquid nitrogen and the nitrogen and/or the polluted nitrogen, as well as between the liquid air and the oxygen in respective heat exchange passageway; and the main heat exchanger core body part(s) is/are overlapped with the subcooler core body part on the length direction to be formed into an integrative core body, and the oxygen and/or the nitrogen and/or the polluted nitrogen are/is crosswise arranged with the liquid air and/or the liquid nitrogen to transmit the heat by means of cross flow and to be formed into backflow gas. The invention not only improves the heat exchange efficiency, reduces the whole metal consumption, saves middle connection pipelines, can realize forming in a brazing way for once, saves the manufacture cost, reduces the resistance consumption, saves the running cost, improves the flow speed of the liquid, and makes up the increased heat exchange area for modifying difference in temperature when performing cross flow heat exchange.
Description
Technical field
What the present invention relates to is a kind of heat-exchange apparatus, especially a kind ofly is used for air separation plant and carries out the equipment that the different temperatures medium carries out heat exchange, belongs to wall-type heat exchange equipment.
Background technology
The cold that utilizes low temperature to backflow (comprising nitrogen and/or dirty nitrogen and/or oxygen etc.) by air and/or pressurized air in the present air separation unit, the heat exchanger of realizing cooling claims main heat exchanger usually, liquid air and/or liquid nitrogen utilize the cold of nitrogen and/or dirty nitrogen, realize that cold heat exchanger claimed subcooler.The nitrogen of extracting out from the fractionating column top and/or the temperature of dirty nitrogen are lower than the oxygen temperature of extracting out from the fractionating column middle part, usually just with nitrogen and/or dirty nitrogen elder generation and liquid air and/or liquid nitrogen heat exchange, made it cold, again with oxygen etc. backflow gas together with heat exchange such as air and/or pressurized air, re-heat is to normal temperature.Main heat exchanger is distinguished setting separately with subcooler in the tradition air separation unit because of its purpose that need realize heat transfer characteristic inequality, fluid is different, same media connects with pipeline again, bring difficulty to general layout, and gradation brazing filler metal, the manufacturing cost height, owing to set up pipeline, the resistance of fluid also increases simultaneously, waste of material not only, supporting sky divide energy consumption also corresponding increase.
Summary of the invention
The objective of the invention is to overcome existing main heat exchanger and the deficiency that subcooler splits, a kind of good effect of heat exchange is provided, can reduce the integrated main heat exchanger and the subcooler of manufacturing and/or operating cost.It includes at least one air and/or pressurized air and comprises the gas that backflows that is made of oxygen and/or nitrogen and/or dirty nitrogen carries out heat exchange at heat exchange runner separately main heat exchanger core body part, one liquid air and/or liquid nitrogen and nitrogen and/or dirty nitrogen, liquid air also carry out the subcooler core body part of heat exchange at heat exchange runner separately with oxygen; Described main heat exchanger core body and subcooler core body form a monoblock type core body in length direction stack back, and oxygen and/or nitrogen and/or dirty nitrogen are being arranged to become the described gas that backflows after cross-flow is conducted heat through intersecting with described liquid air and/or liquid nitrogen.
Described air is that one-way stream heat exchange runner is arranged, its heat exchange runner alternately is arranged to the partition countercurrent heat-transfer with comprising the heat exchange runner that constitutes the gas that backflows by oxygen and/or nitrogen and/or dirty nitrogen, described liquid air and/or liquid nitrogen are that one-way stream or multipass flow heat exchange runner are arranged, its heat exchange runner and nitrogen and/or dirty nitrogen heat exchange runner intersect and to be arranged to cross-flow and to conduct heat, and the heat exchange runner of liquid air intersects with oxygen heat exchange runner and is arranged to make the cold of oxygen partly to be transferred to the cross-flow heat transfer that liquid air is crossed cold part from former main heat exchanger simultaneously.
Described nitrogen and dirty nitrogen enter subcooler core body part by the bottom flow-guiding mouth, conduct heat with the cross-flow of liquid nitrogen heat exchange runner earlier in its heat exchange runner, liquid nitrogen are crossed be chilled to temperature requiredly, conduct heat with the cross-flow of liquid air heat exchange runner again, with liquid air cross be chilled to temperature required; Described nitrogen and dirty nitrogen are finished with described liquid air or/and after the heat exchange of the former subcooler section of liquid nitrogen, continue upwards to carry out countercurrent heat-transfer with described air and/or pressurized air heat exchange runner again.
Include nitrogen and/or dirty nitrogen and/or oxygen heat exchange runner and liquid air and/or liquid nitrogen heat exchange runner in the described heat exchange core body, the heat exchange runner elder generation and the liquid nitrogen cross-flow heat exchange of described nitrogen and/or dirty nitrogen, again with oxygen and liquid air cross-flow heat exchange, liquid nitrogen and liquid air separate with strip of paper used for sealing in the core body, and these two sections are merged into super cooled sect.
The present invention compared with prior art has following technique effect: this structure of the first has improved the flow velocity of liquid air and/or liquid nitrogen, has improved the coefficient of heat transfer of this side, has remedied the correction of the temperature difference in the cross-flow, does not reduce heat exchange efficiency because of the cross-flow heat exchange; It two is that cold with oxygen partly is transferred to liquid air from former main heat exchanger and crosses cold part, because the solution-air heat exchange than gas-gas heat exchange efficiency height, so realize same heat exchange amount, utilizes the required metal consumption of heat exchanger of the technology of the present invention few, reduces manufacturing cost; Its three main heat exchanger and subcooler reasonable combination with routine are integral, and have not only reduced the soldering number of times, and have reduced the end socket and the adapter (two groups of every unit) of backflow nitrogen and/or dirty import and export of nitrogen, have reduced bulk metal consumption and manufacturing cost; It four is to separate manufacturing with traditional main heat exchanger and subcooler, compares with the pipeline ways of connecting, can simplify pipe arrangement; It five is the flow resistances that can reduce the fluids that backflow such as nitrogen and/or dirty nitrogen, has saved operating cost, reaches energy-conservation purpose.
Description of drawings
Fig. 1 is that heat exchange runner of the present invention is arranged schematic diagram.
Fig. 2 is the corresponding core schematic diagram that heat exchange runner shown in Figure 1 is arranged.
Fig. 3 is that another kind of heat exchange runner of the present invention is arranged schematic diagram.
Fig. 4 is the corresponding core schematic diagram that heat exchange runner shown in Figure 3 is arranged.
Fig. 5 is that another heat exchange runner of the present invention is arranged schematic diagram.
Fig. 6 is the corresponding core schematic diagram that heat exchange runner shown in Figure 5 is arranged.
Fig. 7 is that another heat exchange runner of the present invention is arranged schematic diagram.
Fig. 8 is the corresponding core schematic diagram that heat exchange runner shown in Figure 7 is arranged.
Fig. 9 is that another heat exchange runner of the present invention is arranged schematic diagram.
Figure 10 is the corresponding core schematic diagram that heat exchange runner shown in Figure 1 is arranged.
The specific embodiment
The present invention will be described in detail below in conjunction with accompanying drawing: nitrogen of the present invention and/or dirty nitrogen enter heat exchanger channels by the bottom flow-guiding mouth, first and described liquid air is or/and liquid nitrogen heat exchange runner carries out heat exchange, carry out heat exchange with described air heat exchange runner again, all the other backflow as oxygen etc. then according to temperature gradient distribution, enter heat exchange core body in place, connecting pipe in the middle of having eliminated is made and can be realized lead welding and shaping one time.
Shown in Fig. 1,2, it includes at least one air and/or pressurized air and comprises the gas that backflows that is made of oxygen and/or nitrogen and/or dirty nitrogen carries out heat exchange at the first and second heat exchange runners 1,2 separately main heat exchanger core body part 3, one liquid air and/or liquid nitrogen and nitrogen and/or dirty nitrogen, liquid air also carry out the subcooler core body part 7 (referring to Fig. 6) of heat exchange at the 3rd, the 4th and the 5th heat exchange runner 4,5,6 separately with oxygen; Described main heat exchanger core body part 3 forms a monoblock type core body with subcooler core body part 7 in length direction stack back, and oxygen and/or nitrogen and/or dirty nitrogen are being arranged to become the described gas that backflows after cross-flow is conducted heat through intersecting with described liquid air and/or liquid nitrogen.
Described air is that one-way stream heat exchange runner is arranged, its heat exchange runner alternately is arranged to the partition countercurrent heat-transfer with comprising the heat exchange runner that constitutes the gas that backflows by oxygen and/or nitrogen and/or dirty nitrogen, described liquid air and/or liquid nitrogen are that one-way stream or multipass flow heat exchange runner are arranged, its heat exchange runner and nitrogen and/or dirty nitrogen heat exchange runner intersect and to be arranged to cross-flow and to conduct heat, and the heat exchange runner of liquid air intersects with oxygen heat exchange runner and is arranged to make the cold of oxygen partly to be transferred to the cross-flow heat transfer that liquid air is crossed cold part from former main heat exchanger simultaneously.
Described nitrogen and dirty nitrogen enter subcooler core body part 7 by core body bottom flow-guiding mouth, in its 4th heat exchange runner, conduct heat with liquid nitrogen the 3rd heat exchange runner cross-flow earlier, liquid nitrogen crossed be chilled to temperature requiredly, conduct heat with the cross-flow of liquid air heat exchange runner again, with liquid air cross be chilled to temperature required; Described nitrogen and dirty nitrogen are finished with described liquid air or/and after the heat exchange of the former subcooler section of liquid nitrogen, continue upwards to carry out countercurrent heat-transfer with described air and/or pressurized air at separately the second and first heat exchange runner again.
The present invention mainly includes air and/or pressurized air etc. and the gas that backflows (oxygen and/or nitrogen and/or dirty nitrogen etc.) and carries out countercurrent heat exchange at separately heat exchange runner, and liquid air and/or liquid nitrogen and nitrogen and dirty nitrogen carry out the core body of cross-flow heat exchange at heat exchange runner separately.Described air and/or pressurized air etc. and the gas that backflows (oxygen and/or nitrogen and/or dirty nitrogen etc.) intersect and are arranged to countercurrent heat-transfer, and this part heat exchange runner has played the effect of common title main heat exchanger, following Fig. 3,4, and Fig. 5,6, Fig. 7,8 structures are identical; Described liquid air and/or liquid nitrogen are that one-way stream heat exchange runner is arranged, its heat exchange runner and nitrogen and dirty nitrogen heat exchange runner intersect and be arranged to the cross-flow heat transfer, and this part heat exchange runner has played the effect of common title subcooler.
Shown in the accompanying drawing 3,4, the present invention includes liquid air and liquid nitrogen and nitrogen and/or dirty nitrogen carry out heat exchange at heat exchange runner separately core body at least, described liquid air and liquid nitrogen are that one-way stream heat exchange runner is arranged, its heat exchange runner and nitrogen and/or dirty nitrogen heat exchange runner intersect and be arranged to the cross-flow heat transfer.
Shown in the accompanying drawing 5,6, the present invention includes liquid air and liquid nitrogen and nitrogen and dirty nitrogen carry out heat exchange at heat exchange runner separately core body at least, described liquid air is that round trip stream, liquid nitrogen are that round trip stream heat exchange runner is arranged, its heat exchange runner and nitrogen and dirty nitrogen heat exchange runner intersect and to be arranged to cross-flow and to conduct heat, then to go out open height consistent with liquid air for oxygen inlet, participates in the cross-flow heat exchange with liquid air.
Shown in the accompanying drawing 7,8, the present invention includes liquid air and liquid nitrogen and nitrogen and/or dirty nitrogen carry out heat exchange at heat exchange runner separately core body at least, described liquid air round trip stream, liquid nitrogen multipass flow heat exchange runner are arranged, its heat exchange runner and nitrogen and dirty nitrogen heat exchange runner intersect and to be arranged to cross-flow and to conduct heat, it is consistent that oxygen inlet and liquid air go out open height, participates in the cross-flow heat exchange with liquid air.
Shown in the accompanying drawing 9,10, the present invention includes liquid air and liquid nitrogen and nitrogen and/or dirty nitrogen carry out heat exchange at heat exchange runner separately core body at least, described liquid air multipass flow, liquid nitrogen multipass flow heat exchange runner are arranged, its heat exchange runner and nitrogen and dirty nitrogen heat exchange runner intersect and to be arranged to cross-flow and to conduct heat, it is consistent that oxygen inlet and liquid air go out open height, participates in the cross-flow heat exchange with liquid air.
Two heat exchangers that the present invention will be commonly referred to main heat exchanger and subcooler superpose at length direction, unite two into one, and be a kind of integrated main heat exchanger and subcooler.
Include air and/or pressurized air and the gas that backflows (oxygen and/or nitrogen and/or dirty nitrogen etc.) in the described core body and intersect and to be arranged to countercurrent heat-transfer, this part heat exchange runner has played the effect of common title main heat exchanger.
Also including liquid air and/or liquid nitrogen heat exchange runner and nitrogen and/or dirty nitrogen heat exchange runner in the described core body intersects and to be arranged to cross-flow and to conduct heat, liquid air and oxygen heat exchange runner intersect and to be arranged to cross-flow and to conduct heat, and this part heat exchange runner has played the effect of common title subcooler.
Described nitrogen and/or dirty nitrogen enter core body by the bottom flow-guiding mouth, in its heat exchange runner, conduct heat with the cross-flow of liquid nitrogen heat exchange runner earlier, with liquid nitrogen cross be chilled to temperature required, again and/or oxygen conduct heat with the cross-flow of liquid air heat exchange runner together, with liquid air cross be chilled to temperature required.Described nitrogen and/or dirty nitrogen and/or oxygen are finished with described liquid air or/and after the heat exchange of the former subcooler section of liquid nitrogen, continuation is upwards carried out countercurrent heat-transfer with described air heat exchange runner again, has participated in the heat exchange of former main heat exchanger section.
Include liquid nitrogen and/or liquid air heat exchange runner in the described core body, described liquid air and/or liquid nitrogen heat exchange runner can be one-way stream as required, as accompanying drawing 1,2, shown in Fig. 3,4, also can be round trip stream, as accompanying drawing 5,6, shown in Fig. 7,8, can also be multipass flow, shown in accompanying drawing 9,10.
The present invention has realized a lead welding and shaping of former main heat exchanger and subcooler under same tolerance and temperature difference condition, simplified pipe arrangement, has reduced manufacturing cost, has shortened the manufacturing cycle.The present invention includes with metal monoblock type plate-fin heat exchanger and subcoolers such as aluminium, stainless steel, copper, improved the performance and the economic benefit of a whole set of air separation plant.Make the air separation plant technical merit of China bring up to a new class.
Claims (3)
1. integrated main heat exchanger and subcooler, it includes at least one air and/or pressurized air and comprises the gas that backflows that is made of oxygen and/or nitrogen and/or dirty nitrogen carries out heat exchange at heat exchange runner separately main heat exchanger core body part, one liquid air and/or liquid nitrogen and nitrogen and/or dirty nitrogen, liquid air also carry out the subcooler core body part of heat exchange at heat exchange runner separately with oxygen; Described main heat exchanger core body and subcooler core body form a monoblock type core body in length direction stack back, and oxygen and/or nitrogen and/or dirty nitrogen are being arranged to become the described gas that backflows after cross-flow is conducted heat through intersecting with described liquid air and/or liquid nitrogen.
2. a kind of integrated main heat exchanger according to claim 1 and subcooler, it is characterized in that described air is that one-way stream heat exchange runner is arranged, its heat exchange runner alternately is arranged to the partition countercurrent heat-transfer with comprising the heat exchange runner that constitutes the gas that backflows by oxygen and/or nitrogen and/or dirty nitrogen, described liquid air and/or liquid nitrogen are that one-way stream or multipass flow heat exchange runner are arranged, its heat exchange runner and nitrogen and/or dirty nitrogen heat exchange runner intersect and to be arranged to cross-flow and to conduct heat, and the heat exchange runner of liquid air intersects with oxygen heat exchange runner and is arranged to make the cold of oxygen partly to be transferred to the cross-flow heat transfer that liquid air is crossed cold part from former main heat exchanger simultaneously.
3. a kind of integrated main heat exchanger according to claim 1 and 2 and subcooler, it is characterized in that described nitrogen and dirty nitrogen enter subcooler core body part by the bottom flow-guiding mouth, in its heat exchange runner, conduct heat with the cross-flow of liquid nitrogen heat exchange runner earlier, with liquid nitrogen cross be chilled to temperature required, conduct heat with the cross-flow of liquid air heat exchange runner again, with liquid air cross be chilled to temperature required; Described nitrogen and dirty nitrogen are finished with described liquid air or/and after the heat exchange of the former subcooler section of liquid nitrogen, continue upwards to carry out countercurrent heat-transfer with described air and/or pressurized air heat exchange runner again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010123992A CN101806529A (en) | 2010-03-12 | 2010-03-12 | Integrated main heat exchanger and subcooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010123992A CN101806529A (en) | 2010-03-12 | 2010-03-12 | Integrated main heat exchanger and subcooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101806529A true CN101806529A (en) | 2010-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010123992A Pending CN101806529A (en) | 2010-03-12 | 2010-03-12 | Integrated main heat exchanger and subcooler |
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| CN (1) | CN101806529A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294953A (en) * | 2021-06-11 | 2021-08-24 | 四川大学华西医院 | Laboratory low temperature cabinet of drawing materials |
| EP3870914A4 (en) * | 2018-10-26 | 2022-06-15 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Plate fin heat exchanger assembly |
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| US4181174A (en) * | 1977-03-16 | 1980-01-01 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Heat exchangers |
| CN1229908A (en) * | 1998-03-24 | 1999-09-29 | 英国氧气集团有限公司 | Separation of air |
| US6044902A (en) * | 1997-08-20 | 2000-04-04 | Praxair Technology, Inc. | Heat exchange unit for a cryogenic air separation system |
| US6347662B1 (en) * | 1999-02-01 | 2002-02-19 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Heat exchanger, in particular plate heat exchanger for an air separation unit |
| CN101033909A (en) * | 2007-04-11 | 2007-09-12 | 杭州杭氧股份有限公司 | Air separation system for generating liquid oxygen and liquid nitrogen |
| CN101103240A (en) * | 2005-01-14 | 2008-01-09 | 乔治洛德方法研究和开发液化空气有限公司 | Method and device for separating air by low temperature distillation |
| CN101419032A (en) * | 2008-10-21 | 2009-04-29 | 杭州杭氧股份有限公司 | Cross flow type plate-fin subcooler |
| CN201377961Y (en) * | 2008-09-09 | 2010-01-06 | 苏州制氧机有限责任公司 | Multi-operating mode air separation equipment |
| CN201945139U (en) * | 2010-03-12 | 2011-08-24 | 杭州杭氧股份有限公司 | Integral type main heat exchanger and subcooler |
-
2010
- 2010-03-12 CN CN201010123992A patent/CN101806529A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4181174A (en) * | 1977-03-16 | 1980-01-01 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Heat exchangers |
| US6044902A (en) * | 1997-08-20 | 2000-04-04 | Praxair Technology, Inc. | Heat exchange unit for a cryogenic air separation system |
| CN1229908A (en) * | 1998-03-24 | 1999-09-29 | 英国氧气集团有限公司 | Separation of air |
| US6347662B1 (en) * | 1999-02-01 | 2002-02-19 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Heat exchanger, in particular plate heat exchanger for an air separation unit |
| CN101103240A (en) * | 2005-01-14 | 2008-01-09 | 乔治洛德方法研究和开发液化空气有限公司 | Method and device for separating air by low temperature distillation |
| CN101033909A (en) * | 2007-04-11 | 2007-09-12 | 杭州杭氧股份有限公司 | Air separation system for generating liquid oxygen and liquid nitrogen |
| CN201377961Y (en) * | 2008-09-09 | 2010-01-06 | 苏州制氧机有限责任公司 | Multi-operating mode air separation equipment |
| CN101419032A (en) * | 2008-10-21 | 2009-04-29 | 杭州杭氧股份有限公司 | Cross flow type plate-fin subcooler |
| CN201945139U (en) * | 2010-03-12 | 2011-08-24 | 杭州杭氧股份有限公司 | Integral type main heat exchanger and subcooler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3870914A4 (en) * | 2018-10-26 | 2022-06-15 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Plate fin heat exchanger assembly |
| CN113294953A (en) * | 2021-06-11 | 2021-08-24 | 四川大学华西医院 | Laboratory low temperature cabinet of drawing materials |
| CN113294953B (en) * | 2021-06-11 | 2022-10-28 | 四川大学华西医院 | Laboratory low temperature cabinet of drawing materials |
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Application publication date: 20100818 |