CN111721146A - Heat conduction oil-water heat exchanger for efficient biomass coupling power generation - Google Patents
Heat conduction oil-water heat exchanger for efficient biomass coupling power generation Download PDFInfo
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- CN111721146A CN111721146A CN202010568503.4A CN202010568503A CN111721146A CN 111721146 A CN111721146 A CN 111721146A CN 202010568503 A CN202010568503 A CN 202010568503A CN 111721146 A CN111721146 A CN 111721146A
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- Prior art keywords
- shell
- box
- power generation
- heat exchanger
- pipe
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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
- 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
- F28D7/06—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 having a single U-bend
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
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- 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
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- 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
- F28F9/02—Header boxes; End plates
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- 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
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
- F28F9/10—Arrangements for sealing elements into header boxes or end plates by dismountable joints by screw-type connections, e.g. gland
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
- F28F9/12—Arrangements for sealing elements into header boxes or end plates by dismountable joints by flange-type connections
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the field of heat exchangers, in particular to a heat conduction oil-water heat exchanger for efficient biomass coupling power generation; the invention mainly applies to coal-fired coupling biomass power generation, and aims to solve the problems that when the heat exchange tube of the existing heat transfer oil-water heat exchanger leaks, heat transfer oil cannot enter a cooling water side, and cooling water leaks into the heat transfer oil and can be rapidly vaporized, so that the pressure of an oil side is rapidly increased.
Description
Technical Field
The invention relates to the field of heat exchangers, in particular to a heat conduction oil-water heat exchanger for efficient biomass coupling power generation; the method is mainly applied to coal-fired coupled biomass power generation.
Background
The national energy agency and the environmental protection department jointly issue notifications about the construction of coal-fired coupled biomass power generation technical projects. In order to construct a clean, low-carbon, safe and efficient energy system and implement atmospheric pollution prevention and control actions, the pilot work of coal-fired coupled biomass power generation is developed nationwide. In biomass coupling power generation, biomass needs to be gasified at high temperature in a biomass boiler, and the generated high-temperature biomass gas is cooled by heat conduction oil. The heat conducting oil-water heat exchanger is used for exchanging heat between high-temperature heat conducting oil and water supplement of a power generation boiler, recovering waste heat of a heat conducting oil system and improving the heat efficiency of the power generation system.
The heat conducting oil-water heat exchanger is a new type heat exchanger. When the heat exchange tube of the conventional heat conduction oil-water heat exchanger leaks, heat conduction oil cannot enter the cooling water side, and the cooling water leaking into the heat conduction oil can be quickly vaporized, so that the pressure of the oil side is quickly increased.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a heat conduction oil-water heat exchanger for efficient biomass coupling power generation, aiming at solving the problems that when the heat exchange pipe of the existing heat conduction oil-water heat exchanger leaks, heat conduction oil cannot enter a cooling water side, and cooling water leaking into the heat conduction oil can be rapidly vaporized, so that the pressure on an oil side is rapidly increased.
The invention is implemented by the following embodiments: a heat conduction oil-water heat exchanger for efficient biomass coupling power generation comprises a tube box, a tube plate and a body, wherein the tube box is connected with the body through the tube plate;
the heat transfer oil pipe comprises a heat transfer oil pipe box and a heat transfer oil pipe box, wherein the heat transfer oil pipe box comprises a pass partition plate, a box body end socket, a box body, a heat transfer oil outlet, a pipe box flange and a heat transfer oil inlet;
the body comprises a cooling water inlet, a shell, a middle diaphragm plate, a U-shaped heat exchange tube, a body end enclosure, a body flange, a cooling water outlet, a support and a plurality of baffle plates; the upper half section of the shell body of the shell is connected with a cooling water inlet, the lower half section of the shell body of the shell is connected with a cooling water outlet, one side of the shell is connected with a body seal head, the other side of the shell is connected with a body flange, a middle diaphragm plate, a U-shaped heat exchange tube and baffle plates are all arranged in the shell, a plurality of baffle plates are vertically fixed in the shell along the length direction, the middle diaphragm plate is horizontally fixed in the shell, and the U-shaped heat exchange tube penetrates through the baffle plates and the middle diaphragm plate; the outlet end and the inlet end of the U-shaped heat exchange tube are both arranged on one side close to the body flange, and the support is arranged at the bottom of the shell.
Further, the support includes fixing support and sliding support, and fixing support and sliding support all set up the bottom at the casing.
Further, the cooling water inlet and the cooling water outlet are both arranged on one side of the shell close to the body flange.
Further, the body still includes the registration arm, the registration arm sets up inside the casing, and a plurality of baffling boards all are connected with the registration arm.
Still further, the positioning pipe is provided with marks at equal intervals, and the baffle plates are arranged on the positioning pipe at equal intervals.
Furthermore, one end of the tube plate is in interference fit with the tube box flange, and the other end of the tube plate is in interference fit with the body flange.
And furthermore, the tube box flange and the body flange are respectively arranged on two sides of the tube plate and are connected by bolts.
Preferably, the top end of the shell is provided with a safety valve connecting pipe.
Preferably, the top end of the shell is provided with an exhaust connecting pipe.
Preferably, a sewage draining connecting pipe is arranged at the bottom end of the shell.
Has the advantages that:
1. the heat conducting oil-water heat exchanger for efficient biomass coupling power generation is arranged in a horizontal structure, the heat conducting oil is located on a tube pass, and cooling water flows through a shell pass. Under the accident condition, cooling water is released into the high-temperature heat-conducting oil side to be rapidly vaporized, the expansion of the heat-conducting oil side is limited by the space of the heat exchange tube, the cooling water is automatically prevented from being released, and the pressure cannot be rapidly increased.
2. The pipe system adopts a totally enclosed structure, is provided with the middle diaphragm plate, realizes pure countercurrent heat exchange, adopts a left and right baffling mode, effectively improves the transverse scouring flow velocity of cooling water, and improves the heat exchange efficiency of the U-shaped heat exchange pipe.
3. The shell side pressure of the heat exchanger is higher than that of the tube side when the heat exchanger operates, so that heat conducting oil is prevented from leaking into a power generation thermodynamic system to pollute other equipment, and the efficiency of the whole thermodynamic system is reduced.
4. The invention adopts the mode that the heat-conducting oil medium is positioned on the tube side and cooling water flows away from the shell side, thereby improving the working pressure of the shell side, constantly ensuring that the pressure of the shell side is greater than the pressure of the tube side and ensuring that the heat-conducting oil cannot leak into the shell side. The cooling water and the heat conducting oil adopt a pure countercurrent heat exchange mode, a middle partition plate is arranged in the middle of the shell pass cylinder, and the cooling water adopts a left-right baffling mode in the shell pass.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Detailed Description
This embodiment is described with reference to fig. 1:
the first embodiment is as follows: a heat conduction oil-water heat exchanger for efficient biomass coupling power generation comprises a tube box, a tube plate 5 and a body, wherein the tube box is connected with the body through the tube plate 5;
the heat transfer oil pipe box comprises a pipe box body, a pipe box flange and a heat transfer oil inlet 20, wherein the pipe box body comprises a pass partition plate 21, a box body seal head 1, a box body 2, a heat transfer oil outlet 3, the pipe box flange 4 and the heat transfer oil inlet 20, the upper half section of the box body 2 is connected with the heat transfer oil outlet 3, the lower half section of the box body 2 is connected with the heat transfer oil inlet 20, one side of the box body 2 is connected with the box body seal head 1, the other side of the box body 2 is connected with the pipe box;
the body comprises a cooling water inlet 7, a shell 10, a middle diaphragm plate 12, a U-shaped heat exchange tube 14, a body end enclosure 15, a body flange 6, a cooling water outlet 19, a support and a plurality of baffle plates 11; the upper half section of the shell body of the shell 10 is connected with a cooling water inlet 7, the lower half section of the shell body of the shell 10 is connected with a cooling water outlet 19, one side of the shell 10 is connected with a body seal head 15, the other side of the shell 10 is connected with a body flange 6, a middle diaphragm plate 12, a U-shaped heat exchange tube 14 and baffle plates 11 are all arranged in the shell, a plurality of baffle plates 11 are vertically fixed in the shell 10 along the length direction, the middle diaphragm plate 12 is horizontally fixed in the shell 10, and the U-shaped heat exchange tube 14 penetrates through the baffle plates 11 and the middle diaphragm plate 12; the outlet end and the inlet end of the U-shaped heat exchange tube 14 are both arranged at one side close to the body flange 6, and the support is arranged at the bottom of the shell 10.
The second embodiment is as follows: the support comprises a fixed support 18 and a sliding support 16, and the fixed support 18 and the sliding support 16 are both arranged at the bottom of the shell 10.
Other embodiments are the same as the first embodiment.
The third concrete implementation mode: the cooling water inlet 7 and the cooling water outlet 19 are both provided on the side of the housing 10 close to the body flange 6.
Other embodiments are the same as the first embodiment.
The fourth concrete implementation mode: the body further comprises a positioning pipe, the positioning pipe is arranged inside the shell 10, and the baffle plates 11 are connected with the positioning pipe.
Other embodiments are the same as the first embodiment.
The fifth concrete implementation mode: the positioning pipe is provided with marks at equal intervals, and the baffle plates 11 are arranged on the positioning pipe at equal intervals.
The other embodiments are the same as the fourth embodiment.
The sixth specific implementation mode: the tube box flange 4 and the body flange 6 are respectively arranged on two sides of the tube plate 5, and the tube box flange 4 and the body flange 6 are connected through bolts.
Other embodiments are the same as the first embodiment.
The seventh embodiment: the pass partition plate 21 is welded with the pipe box end enclosure 1, the pipe box 2 and the pipe box flange 4.
Other embodiments are the same as the first embodiment.
The specific implementation mode is eight: the top end of the shell 10 is provided with a safety valve connecting pipe 9.
Other embodiments are the same as the first embodiment.
The specific implementation method nine: the top end of the shell 10 is provided with an exhaust connecting pipe 13.
Other embodiments are the same as the first embodiment.
The detailed implementation mode is ten: the bottom end of the shell 10 is provided with a sewage connecting pipe 17.
Other embodiments are the same as the first embodiment.
The invention is not limited to the above embodiments, and one or a combination of several embodiments may also achieve the object of the invention.
The working principle is as follows: heat conduction oil enters the space at the lower part of the pipe box through a heat conduction oil inlet and enters through the U-shaped heat exchange pipe, the heat conduction oil flows out of the U-shaped heat exchange pipe after heat exchange and enters the space at the upper part of the pipe box, and the heat conduction oil flows out of the heat exchanger through a heat conduction oil outlet.
The cooling water enters the upper space inside the shell through the cooling water inlet on the shell, contacts with the outer surface of the U-shaped heat exchange tube, is baffled left and right between the baffle plates, enters the lower space of the shell in the tail bent tube area of the equipment, continues to be baffled left and right, enters the cooling water outlet at the foremost end of the equipment and finally flows out of the heat exchanger.
The cooling water adopts a double-flow left-right baffling mode, and the cooling water and the heat conducting oil are in a pure countercurrent heat exchange mode. When the equipment runs, the working pressure of the shell side is required to be higher than that of the tube side.
Claims (10)
1. A high-efficient biomass coupling is conduction oil-water heat exchanger for electricity generation which characterized in that: the device comprises a tube box, a tube plate (5) and a body, wherein the tube box is connected with the body through the tube plate (5);
the heat conduction oil pipe box comprises a pass partition plate (21), a box body seal head (1), a box body (2), a heat conduction oil outlet (3), a pipe box flange (4) and a heat conduction oil inlet (20), wherein the upper half section of the box body (2) is connected with the heat conduction oil outlet (3), the lower half section of the box body (2) is connected with the heat conduction oil inlet (20), one side of the box body (2) is connected with the box body seal head (1), the other side of the box body (2) is connected with the pipe box flange (4), and the pass partition plate (21) is horizontally arranged in the pipe box and fixedly connected with the box body (2;
the body comprises a cooling water inlet (7), a shell (10), a middle diaphragm plate (12), a U-shaped heat exchange tube (14), a body end enclosure (15), a body flange (6), a cooling water outlet (19), a support and a plurality of baffle plates (11); the upper half section of the shell body of the shell (10) is connected with a cooling water inlet (7), the lower half section of the shell body of the shell (10) is connected with a cooling water outlet (19), one side of the shell (10) is connected with a body end enclosure (15), the other side of the shell (10) is connected with a body flange (6), a middle transverse partition plate (12), a U-shaped heat exchange tube (14) and baffle plates (11) are all arranged in the shell, a plurality of baffle plates (11) are vertically fixed in the shell (10) along the length direction, the middle transverse partition plate (12) is horizontally fixed in the shell (10), and the U-shaped heat exchange tube (14) penetrates through the baffle plates (11) and the middle transverse partition plate (12); the outlet end and the inlet end of the U-shaped heat exchange tube (14) are both arranged on one side close to the body flange (6), and the support is arranged at the bottom of the shell (10).
2. The heat transfer oil-water heat exchanger for efficient biomass coupling power generation according to claim 1, characterized in that: the support comprises a fixed support (18) and a sliding support (16), and the fixed support (18) and the sliding support (16) are both arranged at the bottom of the shell (10).
3. The heat transfer oil-water heat exchanger for efficient biomass coupling power generation according to claim 1, characterized in that: and the cooling water inlet (7) and the cooling water outlet (19) are both arranged on one side, close to the body flange (6), of the shell (10).
4. The heat transfer oil-water heat exchanger for efficient biomass coupling power generation according to claim 1, characterized in that: the body further comprises a positioning pipe, the positioning pipe is arranged inside the shell (10), and the baffle plates (11) are connected with the positioning pipe.
5. The heat transfer oil-water heat exchanger for efficient biomass coupling power generation according to claim 4, characterized in that: the positioning pipe is provided with marks at equal intervals, and the baffle plates (11) are arranged on the positioning pipe at equal intervals.
6. The heat transfer oil-water heat exchanger for efficient biomass coupling power generation according to claim 1, characterized in that: the tube box flange (4) and the body flange (6) are respectively arranged on two sides of the tube plate (5), and the tube box flange (4) is connected with the body flange (6) through bolts.
7. The heat transfer oil-water heat exchanger for efficient biomass coupling power generation according to claim 1, characterized in that: the pass partition plate (21) is welded with the pipe box end enclosure (1), the pipe box (2) and the pipe box flange (4).
8. The heat transfer oil-water heat exchanger for efficient biomass coupling power generation according to claim 1, characterized in that: the top end of the shell (10) is provided with a safety valve connecting pipe (9).
9. The heat transfer oil-water heat exchanger for efficient biomass coupling power generation according to claim 1, characterized in that: the top end of the shell (10) is provided with an exhaust connecting pipe (13).
10. The heat transfer oil-water heat exchanger for efficient biomass coupling power generation as claimed in claim 1, wherein: and a sewage discharge connecting pipe (17) is arranged at the bottom end of the shell (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568503.4A CN111721146A (en) | 2020-06-19 | 2020-06-19 | Heat conduction oil-water heat exchanger for efficient biomass coupling power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568503.4A CN111721146A (en) | 2020-06-19 | 2020-06-19 | Heat conduction oil-water heat exchanger for efficient biomass coupling power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111721146A true CN111721146A (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010568503.4A Pending CN111721146A (en) | 2020-06-19 | 2020-06-19 | Heat conduction oil-water heat exchanger for efficient biomass coupling power generation |
Country Status (1)
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| CN (1) | CN111721146A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2442027A1 (en) * | 1974-09-03 | 1976-03-25 | Steinmueller Gmbh L & C | Shell and tube heat exchanger - having second inner shell to which baffles are attached |
| JPH08189786A (en) * | 1995-01-11 | 1996-07-23 | Ishikawajima Harima Heavy Ind Co Ltd | Heat exchanger |
| CN104075594A (en) * | 2014-06-30 | 2014-10-01 | 杨永坚 | Double shell pass tubular heat exchanger |
| CN204301567U (en) * | 2014-11-05 | 2015-04-29 | 江苏太阳宝新能源有限公司 | A kind of hi-temp hi-effective double tube plate heat exchanger |
| CN104634141A (en) * | 2015-02-15 | 2015-05-20 | 中国计量学院 | Shell-and-tube heat exchanger |
| CN204717647U (en) * | 2015-04-20 | 2015-10-21 | 卢晓琳 | U-tube formula waste heat boiler |
| CN204939433U (en) * | 2015-08-19 | 2016-01-06 | 武汉友谊食品工程有限公司 | A kind of lipin deacidifying deodorization workshop section is with driving, stopping interchanger |
| US20170016678A1 (en) * | 2015-07-14 | 2017-01-19 | Holtec International | Tubular heat exchanger |
| CN106610237A (en) * | 2016-12-05 | 2017-05-03 | 陕西科技大学 | Novel carbon dioxide cooling device |
| 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 |
| CN209131446U (en) * | 2018-10-29 | 2019-07-19 | 苏州圣汇装备有限公司 | A kind of efficient energy-saving coal air preheater |
| CN209820214U (en) * | 2018-12-25 | 2019-12-20 | 无锡可为化工机械有限公司 | U-shaped heat exchanger |
-
2020
- 2020-06-19 CN CN202010568503.4A patent/CN111721146A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2442027A1 (en) * | 1974-09-03 | 1976-03-25 | Steinmueller Gmbh L & C | Shell and tube heat exchanger - having second inner shell to which baffles are attached |
| JPH08189786A (en) * | 1995-01-11 | 1996-07-23 | Ishikawajima Harima Heavy Ind Co Ltd | Heat exchanger |
| CN104075594A (en) * | 2014-06-30 | 2014-10-01 | 杨永坚 | Double shell pass tubular heat exchanger |
| CN204301567U (en) * | 2014-11-05 | 2015-04-29 | 江苏太阳宝新能源有限公司 | A kind of hi-temp hi-effective double tube plate heat exchanger |
| CN104634141A (en) * | 2015-02-15 | 2015-05-20 | 中国计量学院 | Shell-and-tube heat exchanger |
| CN204717647U (en) * | 2015-04-20 | 2015-10-21 | 卢晓琳 | U-tube formula waste heat boiler |
| US20170016678A1 (en) * | 2015-07-14 | 2017-01-19 | Holtec International | Tubular heat exchanger |
| CN204939433U (en) * | 2015-08-19 | 2016-01-06 | 武汉友谊食品工程有限公司 | A kind of lipin deacidifying deodorization workshop section is with driving, stopping interchanger |
| CN106610237A (en) * | 2016-12-05 | 2017-05-03 | 陕西科技大学 | Novel carbon dioxide cooling device |
| 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 |
| CN209131446U (en) * | 2018-10-29 | 2019-07-19 | 苏州圣汇装备有限公司 | A kind of efficient energy-saving coal air preheater |
| CN209820214U (en) * | 2018-12-25 | 2019-12-20 | 无锡可为化工机械有限公司 | U-shaped heat exchanger |
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Application publication date: 20200929 |
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| RJ01 | Rejection of invention patent application after publication |