CN111912260A - Heat exchange equipment integrating preheating, evaporation and overheating - Google Patents
Heat exchange equipment integrating preheating, evaporation and overheating Download PDFInfo
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- CN111912260A CN111912260A CN202010589810.0A CN202010589810A CN111912260A CN 111912260 A CN111912260 A CN 111912260A CN 202010589810 A CN202010589810 A CN 202010589810A CN 111912260 A CN111912260 A CN 111912260A
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- section
- heat exchange
- evaporation
- preheating
- overheating
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- 238000001704 evaporation Methods 0.000 title claims abstract description 53
- 230000008020 evaporation Effects 0.000 title claims abstract description 52
- 238000013021 overheating Methods 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000005192 partition Methods 0.000 claims abstract description 23
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
- F28D7/1653—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape
- F28D7/1661—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape with particular pattern of flow of the heat exchange media, e.g. change of flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A heat exchange device integrating preheating, evaporation and overheating relates to the field of integrated heat exchangers. The invention aims to solve the problem that the existing heat exchange system has large occupied space due to the fact that the number of shell-and-tube heat exchange equipment is large and the integration is poor. The space inside the shell of the heat exchange equipment is divided into a preheating section, an evaporation section and a superheating section, the preheating section is separated from the evaporation section by a first partition plate, the evaporation section is separated from the superheating section by a second partition plate, the first partition plate and the second partition plate are arranged in parallel and are fixedly supported by a plurality of support plates, a plurality of preheating baffle plates which are parallel to each other are uniformly arranged inside the preheating section along the flow direction of a working medium, a vapor-liquid separation device is arranged on the second partition plate and is used for performing vapor-liquid separation on the working medium mixed with vapor and liquid in the evaporation section, a plurality of superheating baffle plates which are parallel to each other are uniformly arranged inside the superheating section along the length direction of the superheating section, and the outlet of the superheating section is.
Description
Technical Field
The invention belongs to the technical field of energy, energy conservation and environmental protection, and particularly relates to an integrated heat exchanger.
Background
The metallurgical, pharmaceutical, chemical and energy industries contain shell-and-tube heat exchange equipment for evaporating and superheating liquid. Generally, the evaporation and superheating of a liquid are divided into three devices, namely: the three devices are communicated with each other through pipelines, so that the occupied space is large, and the cost is higher. With the development of high-efficiency heat exchanger technology, more and more application occasions of shell-and-tube heat exchange equipment have requirements on the integration, cost and pressure loss of the equipment. However, less research is currently being conducted on integrated heat exchangers, and three devices have significant disadvantages in terms of system integration and system performance.
In conclusion, the integration of the shell-and-tube heat exchange equipment of the existing heat exchange system is backward, and the problems of large equipment quantity, large occupied space and large shell side resistance loss exist.
Disclosure of Invention
The invention provides a heat exchange device integrating preheating, evaporation and overheating, aiming at solving the problems of large occupied space and large shell side resistance loss caused by the large number and poor integration of shell-and-tube heat exchange devices of the existing heat exchange system.
A heat exchange device integrating preheating, evaporation and overheating comprises: the heat exchange device comprises a shell and a heat exchange tube positioned inside the shell, wherein the inner space of the shell of the heat exchange device is divided into a preheating section, an evaporation section and a superheating section, the preheating section and the evaporation section are separated by a first partition plate, the evaporation section and the superheating section are separated by a second partition plate, the first partition plate and the second partition plate are arranged in parallel, the first partition plate and the second partition plate are fixedly supported by a plurality of partition plate supporting plates, an inlet of the preheating section is communicated with an inlet of the shell, an outlet of the preheating section is communicated with an inlet of the evaporation section, a plurality of preheating baffle plates which are parallel to each other are uniformly arranged inside the preheating section along the flowing direction of a working medium, a vapor-liquid separation device is arranged on the second partition plate, the vapor-liquid separation device is used for performing vapor-liquid separation on the working medium mixed with vapor and liquid in the evaporation section.
A plurality of heat exchange tube supporting plates which are parallel to each other are uniformly arranged in the evaporation section along the length direction of the evaporation section.
The vapor-liquid separation device is a wire mesh demister.
The vapor-liquid separation device is fixedly connected with the second partition plate through round steel.
The heat exchange tubes in the preheating section and the superheating section are arranged in a triangular tube distribution mode, and the heat exchange tubes in the evaporation section are arranged in a square tube distribution mode.
The square pipe arrangement mode is as follows: four circles of four heat exchange tube cross sections can constitute a square, four heat exchange tubes are two liang adjacent.
The triangular pipe arrangement mode is as follows: in the array formed by all the heat exchange tubes, two adjacent rows of heat exchange tubes are arranged in a staggered manner.
Compared with the prior art, the invention has the following effects:
1. the heat exchanger is an integrated heat exchanger integrating a preheater, an evaporator and a superheater, so that the integration of heat exchange equipment is improved; meanwhile, the partition plate is additionally arranged in the structure, so that each functional area can be effectively distinguished, and the universality of the equipment is improved.
2. The invention integrates three devices into a whole, effectively reduces the pressure loss of the shell side, reduces the weight of the total material and saves the cost.
Drawings
FIG. 1 is a schematic view of the overall structure of a heat exchange device integrating preheating, evaporation and overheating;
fig. 2 is a cross-sectional view of fig. 1.
Detailed Description
The first embodiment is as follows: referring to fig. 1 and fig. 2, the present embodiment is specifically described, and the heat exchange device integrating preheating, evaporation and overheating in the present embodiment includes: the heat exchanger comprises a shell and a heat exchange tube 11 positioned in the shell, wherein the inner space of the shell of the heat exchange device is divided into a preheating section 1, an evaporation section 2 and a superheating section 3.
The preheating section 1 and the evaporation section 2 are separated by a first partition plate 5, the evaporation section 2 and the superheating section 3 are separated by a second partition plate 8, and the first partition plate 5 and the second partition plate 8 are arranged in parallel and are fixedly supported by a plurality of partition plate supporting plates 7.
The inlet of the preheating section 1 is communicated with the inlet of the shell, the outlet of the preheating section 1 is communicated with the inlet of the evaporation section 2, and the preheating section 1 is divided into a straight pipe section and a bent pipe section. A plurality of parallel preheating baffle plates 4 are uniformly arranged in the straight pipe section along the flow direction of the working medium, the working medium enters the preheating section 1 from the inlet, and then is subjected to baffling enhancement heat exchange by the preheating baffle plates 4, and finally flows out of the bent pipe section at the tail outlet of the preheating section 1 and enters the evaporation section 2.
The evaporation section 2 is uniformly provided with a plurality of heat exchange tube supporting plates 6 which are parallel to each other along the length direction of the evaporation section, and the heat exchange tube supporting plates 6 are used for supporting a plurality of heat exchange tubes 11 inside. The second clapboard 8 is provided with a through hole, the through hole is provided with a vapor-liquid separation device 10, and the vapor-liquid separation device 10 is used for performing vapor-liquid separation on the vapor-liquid mixed working medium in the evaporation section 2. The vapor-liquid separation device 10 is specifically a wire mesh demister and is fixedly connected with the second partition plate 8 through round steel.
A plurality of overheating baffle plates 9 which are parallel to each other are uniformly arranged in the overheating section 3 along the length direction of the overheating section, and heat exchange is enhanced through baffling. The outlet of the superheating section 3 is communicated with the outlet of the shell.
The working principle of the above embodiment is as follows:
working medium enters the preheating section 1 from the inlet of the preheating section 1 to be heated, and flows out of the bent pipe section at the tail outlet of the preheating section 1 to enter the evaporation section 2 after being baffled by the preheating baffle plate 4 to enhance heat exchange. The working medium in the evaporation section 2 is evaporated through heat exchange, the evaporated working medium is changed into a vapor-liquid mixed state, and then vapor-liquid separation is performed through the vapor-liquid separation device 10. In the process, the liquid drops are separated and fall back to the lower part of the evaporation section 2, and the vapor enters the overheating section 3 through the vapor-liquid separation device 10 on the second partition plate 8. In practical application, it is necessary to ensure that a sufficient evaporation space is left above the evaporation section 2. Finally, the gas working medium is baffled by the heat baffle plate 9 to enhance heat exchange and is discharged from an outlet of the overheating section 3.
Further, the heat exchange tubes 11 in the preheating section 1 and the superheating section 3 are arranged in a triangular tube arrangement mode, and the heat exchange tubes 11 in the evaporation section 2 are arranged in a square tube arrangement mode.
The square pipe arrangement mode is as follows:
four circles of the cross sections of the four heat exchange tubes 11 can form a square, and the four heat exchange tubes 11 are adjacent to each other in pairs.
The triangular pipe distribution mode is as follows:
in the array formed by all the heat exchange tubes 11, two adjacent rows of heat exchange tubes 11 are arranged in a staggered manner.
The evaporation section 2 adopts a square pipe arrangement mode, which is favorable for evaporation and flow of vapor from liquid.
This embodiment can be integrated preheating, evaporation and overheated, reduces the cost of evaporation and overheating equipment, reduces the loss of pressure of indirect heating equipment shell side.
Claims (7)
1. A heat exchange device integrating preheating, evaporation and overheating comprises: a shell and a heat exchange tube (11) located inside the shell, characterized in that,
the inner space of the shell of the heat exchange equipment is divided into a preheating section (1), an evaporation section (2) and a superheating section (3),
the preheating section (1) and the evaporation section (2) are separated by a first clapboard (5), the evaporation section (2) and the superheating section (3) are separated by a second clapboard (8), the first clapboard (5) and the second clapboard (8) are arranged in parallel and are fixedly supported by a plurality of clapboard supporting plates (7),
the inlet of the preheating section (1) is communicated with the inlet of the shell, the outlet of the preheating section (1) is communicated with the inlet of the evaporation section (2), a plurality of parallel preheating baffle plates (4) are uniformly arranged in the preheating section (1) along the flow direction of the working medium,
the second clapboard (8) is provided with a vapor-liquid separation device (10), the vapor-liquid separation device (10) is used for performing vapor-liquid separation on the working medium mixed with vapor and liquid in the evaporation section (2),
a plurality of parallel overheating baffle plates (9) are uniformly arranged in the overheating section (3) along the length direction, and the outlet of the overheating section (3) is communicated with the outlet of the shell.
2. A heat exchange device integrating preheating, evaporation and overheating as a whole as recited in claim 1 in which a plurality of heat exchange tube support plates (6) parallel to each other are uniformly arranged inside the evaporation section (2) along the length direction thereof.
3. The heat exchange device integrating preheating, evaporation and overheating as claimed in claim 1, wherein the vapor-liquid separation device (10) is a wire mesh demister.
4. The heat exchange equipment integrating preheating, evaporation and overheating as claimed in claim 1, wherein the vapor-liquid separation device (10) is fixedly connected with the second partition plate (8) through round steel.
5. The heat exchange device integrating preheating, evaporation and overheating as claimed in claim 1, wherein the heat exchange tubes (11) in the preheating section (1) and the overheating section (3) are arranged in a triangular tube distribution manner,
the heat exchange tubes (11) in the evaporation section (2) are arranged in a square tube arrangement mode.
6. The heat exchange device integrating preheating, evaporation and overheating as claimed in claim 5, wherein the square tube arrangement mode is as follows:
four circles of the cross sections of the four heat exchange tubes (11) can form a square, and the four heat exchange tubes (11) are adjacent to each other in pairs.
7. The heat exchange device integrating preheating, evaporation and overheating as claimed in claim 5, wherein the triangular tube distribution mode is as follows:
in the array formed by all the heat exchange tubes (11), two adjacent rows of heat exchange tubes (11) are arranged in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010589810.0A CN111912260A (en) | 2020-06-24 | 2020-06-24 | Heat exchange equipment integrating preheating, evaporation and overheating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010589810.0A CN111912260A (en) | 2020-06-24 | 2020-06-24 | Heat exchange equipment integrating preheating, evaporation and overheating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111912260A true CN111912260A (en) | 2020-11-10 |
Family
ID=73227864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010589810.0A Pending CN111912260A (en) | 2020-06-24 | 2020-06-24 | Heat exchange equipment integrating preheating, evaporation and overheating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111912260A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149999A (en) * | 2008-09-08 | 2011-08-10 | 巴尔克有限公司 | Heat exchanger in modular design |
| CN103013579A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated sarciniform radiation preheating hybrid heat recovery device with flue gas chilling function |
| US20130112156A1 (en) * | 2009-11-17 | 2013-05-09 | Balcke-Duerr Gmbh | Heat exchanger for generating steam for solar power plants |
| TW201520500A (en) * | 2013-11-27 | 2015-06-01 | Ind Tech Res Inst | Heat exchanger with preheating and evaporating functions and heat cycle system and method using the same |
| US20150308295A1 (en) * | 2012-06-26 | 2015-10-29 | Eberspächer Exhaust Technology GmbH & Co. KG | Evaporator |
| CN107606974A (en) * | 2017-09-14 | 2018-01-19 | 上海铠韧气体工程股份有限公司 | Integrated combination heat exchanger |
| CN207196447U (en) * | 2017-09-11 | 2018-04-06 | 甘肃光热发电有限公司 | The stable type steam generating system of photo-thermal power generation |
| CN109210968A (en) * | 2017-06-30 | 2019-01-15 | 中石化广州工程有限公司 | A kind of integral type vaporizer-superheater |
| CN212431866U (en) * | 2020-06-24 | 2021-01-29 | 哈尔滨汽轮机厂辅机工程有限公司 | Heat exchange equipment integrating preheating, evaporation and overheating |
-
2020
- 2020-06-24 CN CN202010589810.0A patent/CN111912260A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149999A (en) * | 2008-09-08 | 2011-08-10 | 巴尔克有限公司 | Heat exchanger in modular design |
| US20130112156A1 (en) * | 2009-11-17 | 2013-05-09 | Balcke-Duerr Gmbh | Heat exchanger for generating steam for solar power plants |
| US20150308295A1 (en) * | 2012-06-26 | 2015-10-29 | Eberspächer Exhaust Technology GmbH & Co. KG | Evaporator |
| CN103013579A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated sarciniform radiation preheating hybrid heat recovery device with flue gas chilling function |
| TW201520500A (en) * | 2013-11-27 | 2015-06-01 | Ind Tech Res Inst | Heat exchanger with preheating and evaporating functions and heat cycle system and method using the same |
| CN109210968A (en) * | 2017-06-30 | 2019-01-15 | 中石化广州工程有限公司 | A kind of integral type vaporizer-superheater |
| CN207196447U (en) * | 2017-09-11 | 2018-04-06 | 甘肃光热发电有限公司 | The stable type steam generating system of photo-thermal power generation |
| CN107606974A (en) * | 2017-09-14 | 2018-01-19 | 上海铠韧气体工程股份有限公司 | Integrated combination heat exchanger |
| CN212431866U (en) * | 2020-06-24 | 2021-01-29 | 哈尔滨汽轮机厂辅机工程有限公司 | Heat exchange equipment integrating preheating, evaporation and overheating |
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