CN109029050A - It is a kind of bilayer heat exchanger tube and its composition heat exchanger - Google Patents
It is a kind of bilayer heat exchanger tube and its composition heat exchanger Download PDFInfo
- Publication number
- CN109029050A CN109029050A CN201810640277.9A CN201810640277A CN109029050A CN 109029050 A CN109029050 A CN 109029050A CN 201810640277 A CN201810640277 A CN 201810640277A CN 109029050 A CN109029050 A CN 109029050A
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- CN
- China
- Prior art keywords
- tube
- heat exchanger
- partition
- pressure
- outer tube
- 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.)
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Links
- 238000012806 monitoring device Methods 0.000 claims abstract description 20
- 238000005192 partition Methods 0.000 claims description 42
- 238000003466 welding Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000002360 explosive Substances 0.000 abstract description 5
- 231100000331 toxic Toxicity 0.000 abstract description 5
- 230000002588 toxic effect Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 18
- 230000006872 improvement Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 241001453233 Doodia media Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/003—Multiple wall conduits, e.g. for leak detection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/16—Safety or protection arrangements; Arrangements for preventing malfunction for preventing leakage
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The heat exchanger of a kind of bilayer heat exchanger tube and its composition, the bilayer heat exchanger tube are made of inner tube and outer tube, and the inner tube is inserted into the inner cavity of the outer tube, and the inner cavity of the inner tube is heat exchange inside medium, and the periphery of the outer tube is heat exchange lateral media；The outer wall of the inner tube and the inner wall of the outer tube directly contact or between there are intermediate cavities, offer the groove for conducting pressure to pressure monitoring device on the outer wall of the inner tube or/and the inner wall of outer tube, the pressure voltage of the inner tube and outer tube is not less than the maximum pressure value in the operating pressure of the inside medium and the operating pressure of lateral media.The present invention can not only play the role of preventing dielectric leakage, in conjunction with special pressure monitoring devices, moreover it is possible to which the leakage situation for exchanging heat pipeline is monitored, the occasion especially suitable for the heat exchange of the danger mediums such as inflammable, explosive, toxic, high pressure.
Description
Technical field
The present invention relates to a kind of heat-exchanger rigs, and in particular to it is a kind of bilayer heat exchanger tube and its composition heat exchanger, belong to heat
Power technical field.
Background technique
Heat exchanger is the device that the cold and hot medium inside and outside pipe is exchanged heat by heat exchanger tube, the heat of hot side medium
Cold side medium is passed to by heat exchanger tube, so that the heating of cold side medium or object is mutually changed, while hot side medium cooling or object phase
It changes.
Traditional heat exchanger tube is single-layer pipeline structure, once heat exchange pipeline is damaged, will lead to inside and outside pipeline two media from
High side to low side leakage, to cause two media mixing or other related security risks.
Summary of the invention
The technical problem to be solved by the present invention is to, overcome the deficiencies of existing technologies, provide a kind of double-deck heat exchanger tube and its
The occurrence of heat exchanger of composition, the mixing of medium caused by effectivelying prevent piping failure to leak, reduces heat exchange pipeline leakage
Risk.
The technical solution that the present invention solves its technical problem is as follows:
A kind of bilayer heat exchanger tube, is made of inner tube and outer tube, and the inner tube is inserted into the inner cavity of the outer tube,
The inner cavity of the inner tube is heat exchange inside medium, and the periphery of the outer tube is heat exchange lateral media.
As a further improvement, the outer wall of the inner tube is directly contacted with the inner wall of the outer tube.
As a further improvement, the outer wall of the inner tube is not contacted with the inner wall of the outer tube, the inner tube with
There are intermediate cavities between outer tube.
As a further improvement, being filled with heat-conducting medium in the intermediate cavity.
As a further improvement, offering for conducting pressure on the outer wall of the inner tube to pressure monitoring device
Groove.
As a further improvement, offering for conducting pressure on the inner wall of the outer tube to pressure monitoring device
Groove.
As a further improvement, the pressure voltage of the inner tube and outer tube is not less than the work pressure of the inside medium
Maximum pressure value in the operating pressure of power and lateral media.
Another technical solution of the invention are as follows:
A kind of heat exchanger using the above-mentioned double-deck heat exchanger tube, including shell, first partition, second partition and Duo Gen bilayer change
Heat pipe, the first partition and second partition be placed in parallel in the shell along the heat exchanger cross section and respectively with it is described
The inner wall sealing welding of shell, bilayer heat exchanger tube being longitudinally arranged along the heat exchanger, which includes mutual
The outer tube and inner tube being nested with, the inner tube be placed through front first partition and with the first partition sealing welding, should
Outer tube be placed through the second partition at rear and with the second partition sealing welding, the inner cavity of the inner tube is heat exchange inside
Medium is heat exchange lateral media between the outer tube and shell.
As a further improvement, being provided with pressure monitoring dress on shell between the first partition and second partition
It sets, the space between the pressure monitoring device and the first partition and second partition is connected to, the space and the inner tube
Gap connection between outer tube, so that the pressure monitoring device is able to detect that sky between the inner tube and outer tube
Pressure in gap, thus the pressure monitoring device is monitored the leakage situation of the double-deck heat exchanger tube.
Compared with traditional heat exchanger tube and heat exchanger, the present invention is had the advantage that
1, using the two-layer pipe of ectonexine nesting, therefore can guarantee in the case where any one layer of pipe leakage,
The medium of leakage can only all reach the annular space between two layers of pipeline, the other side without entering heat exchanger tube.
2, the voltage endurance capability of inside and outside two layers of pipeline is not less than the maximum working pressure (MWP) of lateral media in heat exchanger tube, to guarantee
When any one layer of pipe leakage, leaking medium can only all be leaked between two layers of pipeline, be situated between without different from other side
Matter mixing, this is particularly suitable for the occasion of the higher media for heat exchange of the risk such as inflammable and explosive, toxic, high pressure.
3, the outer wall of inner layer pipe and/or the inner wall of outer layer pipe offer groove, these grooves can be in double-skin duct
In the case where any one layer of leakage, by the pressure conduction of the side to pressure monitoring device, to be monitored to leakage, if outer layer
It is identical with heat exchanger cavity pressure that pipe leakage then detects pressure, detects pressure and heat exchanger tube internal pressure phase if inner tube leaks
Together, it is possible thereby to judge which side pipe leakage.
In short, the present invention can not only play the role of preventing dielectric leakage, in conjunction with special pressure monitoring devices, moreover it is possible to
The leakage situation of exchange heat pipeline is monitored, the field especially suitable for the heat exchange of the danger mediums such as inflammable, explosive, toxic, high pressure
It closes.
Detailed description of the invention
Fig. 1 is the schematic diagram of the embodiment of the present invention one.
Fig. 2 is the drawing in side sectional elevation of Fig. 1.
Fig. 3 is the schematic diagram of the embodiment of the present invention two.
Fig. 4 is the schematic diagram of the embodiment of the present invention three.
Fig. 5 is the enlarged drawing in the portion E in Fig. 4.
Specific embodiment
The present invention is described in detail in the following with reference to the drawings and specific embodiments, but protection scope of the present invention is not limited to
Following embodiments.The equivalence changes and modification that all contents according to this specification are made, belong to claimed
Technical scope.
Embodiment one
Fig. 1 and Fig. 2 are please referred to, the double-deck heat exchanger tube is illustrated and is made of inner tube 2 and outer tube 1, the inner tube 2 is inserted into institute
State the inner cavity of outer tube 1, medium A on the inside of the inner cavity fluid interchange of the inner tube 2, the periphery fluid interchange of the outer tube 1
Lateral media B.Medium A and heat exchange lateral media B can be the high-risks such as inflammable, explosive, toxic, high pressure Jie on the inside of the heat exchange
Matter.
The outer wall of the inner tube 2 is not contacted with the inner wall of the outer tube 1, is existed between the inner tube 2 and outer tube 1
There is intermediate cavity 3, is filled with heat-conducting medium in the intermediate cavity 3.
The pressure voltage of the inner tube 2 and outer tube 1 is not less than the operating pressure and lateral media of the inside medium A
Maximum pressure value in the operating pressure of B, so that the medium of leakage can only all reach two layers when guaranteeing any one layer of pipe leakage
In annular space intermediate cavity 3 between pipeline, the other side without entering heat exchanger tube is mixed from different media.
Embodiment two
It is made of referring to Fig. 3, illustrating the double-deck heat exchanger tube inner tube 2 and outer tube 1, the inner tube 2 is inserted into described outer
The inner cavity of layer pipe 1, the inner cavity fluid interchange inside medium A of the inner tube 2, the periphery fluid interchange outside of the outer tube 1
Medium B.Medium A and heat exchange lateral media B can be inflammable, explosive, toxic, high pressure grade high danger medium on the inside of the heat exchange.
The outer wall of the inner tube 2 is directly contacted with the inner wall of the outer tube 1.On the outer wall of the inner tube 2
Several grooves 4 are offered, which can give the pressure conduction of the side in the case where any one layer of leakage of double-skin duct
Pressure monitoring device.The groove 4 can also be opened on the inner wall of the outer tube 1.
Embodiment three
Please refer to Fig. 4 and Fig. 5, diagram heat exchanger includes shell 2-1, first partition 2-4, second partition 2-5 and Duo Gen bis-
Layer heat exchanger tube.The first partition 2-4 and second partition 2-5 are put in the shell 2-1 along the heat exchanger cross section is parallel
Set, the first partition 2-4 preceding, second partition 2-5 rear, and the first partition 2-4 and second partition 2-5 respectively with
The inner wall sealing welding of the shell 2-1 forms an envelope between the first partition 2-4 and second partition 2-5 referring to Fig. 5
The space closed.
Bilayer heat exchanger tube being longitudinally arranged along the heat exchanger, which includes the outer tube being mutually nested with
1 and inner tube 2, the outer wall of the inner tube 2 do not contacted with the inner wall of the outer tube 1, between the inner tube 2 and outer tube 1
There are annular spaces.The inner tube 2 passes through the first partition 2-4 and is tightly connected with first partition 2-4, described outer
Layer pipe 1 passes through the second partition 2-5 and is tightly connected with second partition 2-5.The inner cavity flowing of the inner tube 2 has heat exchange
Inside medium A, flowing has heat exchange lateral media B between the outer tube 2 and shell 2-1.
Pressure monitoring device 2-6, institute are provided on shell 2-1 between the first partition 2-4 and second partition 2-5
The space stated between pressure monitoring device 2-6 and the first partition 2-4 and second partition 2-5 is connected to, the space with it is described interior
Annular space connection between layer pipe 2 and outer tube 1, so that the pressure monitoring device 2-6 is able to detect that the inner tube 2
Pressure between outer tube 1 in annular space；Thus the pressure monitoring device 2-6 can let out the double-deck heat exchanger tube
Leakage situation is monitored, and it is identical as the heat exchange lateral media B pressure in heat exchanger cavity to detect pressure if outer tube 1 leaks,
It is identical as medium A pressure on the inside of the heat exchange inside heat exchanger tube that pressure is detected if inner tube 2 leaks, it is possible thereby to judge internal layer
Pipe 2 or outer tube 1 leak.
The present invention claims protection scope be not limited only to above-described embodiment, also should include that other are obvious to the invention
Transformation and alternative solution.
Claims (9)
1. a kind of bilayer heat exchanger tube, it is characterised in that: the bilayer heat exchanger tube is made of inner tube and outer tube, the inner tube
It is inserted into the inner cavity of the outer tube, the inner cavity of the inner tube is heat exchange inside medium, and the periphery of the outer tube is that heat exchange is outer
Side medium.
2. bilayer heat exchanger tube as described in claim 1, it is characterised in that: the outer wall of the inner tube and the outer tube
Inner wall directly contacts.
3. bilayer heat exchanger tube as described in claim 1, it is characterised in that: the outer wall of the inner tube and the outer tube
Inner wall does not contact, and there are intermediate cavities between the inner tube and outer tube.
4. bilayer heat exchanger tube as claimed in claim 3, it is characterised in that: be filled with heat-conducting medium in the intermediate cavity.
5. bilayer heat exchanger tube as claimed in claim 1 or 2, it is characterised in that: opened up on the outer wall of the inner tube useful
In conducting pressure to the groove of pressure monitoring device.
6. bilayer heat exchanger tube as claimed in claim 1 or 2, it is characterised in that: opened up on the inner wall of the outer tube useful
In conducting pressure to the groove of pressure monitoring device.
7. bilayer heat exchanger tube as described in claim 1, it is characterised in that: the pressure voltage of the inner tube and outer tube is not low
Maximum pressure value in the operating pressure of the inside medium and the operating pressure of lateral media.
8. a kind of heat exchanger using bilayer heat exchanger tube described in claim 1, it is characterised in that: the heat exchanger includes outer
Shell, first partition, second partition and Duo Gen bilayer heat exchanger tube, the first partition and second partition are in the shell along described
Heat exchanger cross section is placed in parallel and respectively with the inner wall sealing welding of the shell, and the bilayer heat exchanger tube is along the heat exchanger
Be longitudinally arranged, which includes the outer tube and inner tube being mutually nested with, which is placed through the of front
One partition and with the first partition sealing welding, the outer tube be placed through the second partition at rear and with the second partition seal
Welding, the inner cavity of the inner tube are heat exchange inside medium, are heat exchange lateral media between the outer tube and shell.
9. heat exchanger as described in claim 1, it is characterised in that: on the shell between the first partition and second partition
It is provided with pressure monitoring device, the space between the pressure monitoring device and the first partition and second partition is connected to, should
Gap between space and the inner tube and outer tube is connected to, so that the pressure monitoring device is able to detect that the internal layer
Pressure between pipe and outer tube in gap, thus the pressure monitoring device carries out the leakage situation of the double-deck heat exchanger tube
Monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640277.9A CN109029050A (en) | 2018-06-21 | 2018-06-21 | It is a kind of bilayer heat exchanger tube and its composition heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640277.9A CN109029050A (en) | 2018-06-21 | 2018-06-21 | It is a kind of bilayer heat exchanger tube and its composition heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109029050A true CN109029050A (en) | 2018-12-18 |
Family
ID=64609977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640277.9A Withdrawn CN109029050A (en) | 2018-06-21 | 2018-06-21 | It is a kind of bilayer heat exchanger tube and its composition heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109029050A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288826A (en) * | 2020-03-29 | 2020-06-16 | 孙厚才 | Three-cavity nuclear leakage prevention heat exchanger with nuclear energy band interlayer and pressure feedback |
| CN114264184A (en) * | 2021-12-14 | 2022-04-01 | 中核武汉核电运行技术股份有限公司 | Double-wall heat transfer pipe and manufacturing process thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090102U (en) * | 1991-05-20 | 1991-12-04 | 沈阳变压器研究所 | Core construction of water-cooled apparatus |
| JPH0878242A (en) * | 1994-08-31 | 1996-03-22 | Tada Denki Kk | Double-tube cooler |
| CN201322559Y (en) * | 2008-06-17 | 2009-10-07 | 风凯换热器制造(常州)有限公司 | Tubular heat exchanger |
| CN201497403U (en) * | 2009-08-26 | 2010-06-02 | 山东聚翔科技有限公司 | Leakage-proof heat exchanger |
| CN201628497U (en) * | 2010-04-15 | 2010-11-10 | 山西汾西热能工程有限公司 | Double pipe gap filling liquid leakage alarm air cooler |
| CN202420264U (en) * | 2011-12-31 | 2012-09-05 | 中国船舶重工集团公司第七一一研究所 | Double-layer heat exchange tube and sealing connecting structure of double layer heat exchange tube and tube plates |
| CN106152856A (en) * | 2015-03-26 | 2016-11-23 | 天津易成百业科技有限公司 | Double-deck heat exchanger tube for refrigerating plant in automatic vending machine |
| CN207365762U (en) * | 2017-10-23 | 2018-05-15 | 中国科学院广州能源研究所 | Three-dimensional becomes space structure changes two-tube-pass double tube plate heat exchanger |
-
2018
- 2018-06-21 CN CN201810640277.9A patent/CN109029050A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090102U (en) * | 1991-05-20 | 1991-12-04 | 沈阳变压器研究所 | Core construction of water-cooled apparatus |
| JPH0878242A (en) * | 1994-08-31 | 1996-03-22 | Tada Denki Kk | Double-tube cooler |
| CN201322559Y (en) * | 2008-06-17 | 2009-10-07 | 风凯换热器制造(常州)有限公司 | Tubular heat exchanger |
| CN201497403U (en) * | 2009-08-26 | 2010-06-02 | 山东聚翔科技有限公司 | Leakage-proof heat exchanger |
| CN201628497U (en) * | 2010-04-15 | 2010-11-10 | 山西汾西热能工程有限公司 | Double pipe gap filling liquid leakage alarm air cooler |
| CN202420264U (en) * | 2011-12-31 | 2012-09-05 | 中国船舶重工集团公司第七一一研究所 | Double-layer heat exchange tube and sealing connecting structure of double layer heat exchange tube and tube plates |
| CN106152856A (en) * | 2015-03-26 | 2016-11-23 | 天津易成百业科技有限公司 | Double-deck heat exchanger tube for refrigerating plant in automatic vending machine |
| CN207365762U (en) * | 2017-10-23 | 2018-05-15 | 中国科学院广州能源研究所 | Three-dimensional becomes space structure changes two-tube-pass double tube plate heat exchanger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288826A (en) * | 2020-03-29 | 2020-06-16 | 孙厚才 | Three-cavity nuclear leakage prevention heat exchanger with nuclear energy band interlayer and pressure feedback |
| CN114264184A (en) * | 2021-12-14 | 2022-04-01 | 中核武汉核电运行技术股份有限公司 | Double-wall heat transfer pipe and manufacturing process thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181218 |