CN219714107U - Plate heat exchanger suitable for high temperature working condition - Google Patents
Plate heat exchanger suitable for high temperature working condition Download PDFInfo
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- CN219714107U CN219714107U CN202320113804.7U CN202320113804U CN219714107U CN 219714107 U CN219714107 U CN 219714107U CN 202320113804 U CN202320113804 U CN 202320113804U CN 219714107 U CN219714107 U CN 219714107U
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- core body
- heat exchanger
- hot side
- cold side
- core
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- 238000005192 partition Methods 0.000 claims abstract description 13
- 238000011010 flushing procedure Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 15
- 239000003546 flue gas Substances 0.000 abstract description 15
- 239000000779 smoke Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a plate heat exchanger suitable for high-temperature working conditions.A cuboid-shaped core body which is obliquely arranged is arranged in a heat exchanger shell, a partition plate connected with the core body is arranged between a cold side shell and a hot side shell, a core body side expansion joint is welded between two partition plates positioned at the inlet end part of the hot side of the core body and a core body side seam, and the top and the bottom of the core body, the partition plate and the core body side expansion joint are respectively welded with the inner walls of an upper cover plate and a lower cover plate; an expansion joint on the upper surface of the core body is welded between the top of the core body and the upper cover plate. The separator separates the inside hot side of heat exchanger casing from cold side, and when operating under the high temperature operating mode, core length direction's thermal expansion accessible core side expansion joint compensates, and core height direction's thermal expansion accessible core upper surface expansion joint compensates, has prevented that the core from taking place to warp, causes the leakage of flue gas, has guaranteed the safe operation of equipment.
Description
Technical Field
The utility model relates to the technical field of heat exchange equipment, in particular to a plate heat exchanger with a special structure and suitable for a high-temperature working condition.
Background
In the waste heat recovery heat exchanger of high-temperature flue gas, the temperature of the high-temperature flue gas can exceed 500 ℃, so that the temperature difference between the cold side and the hot side of the heat exchanger is large, the heat exchanger is easy to tear a welding seam of equipment and deform a shell under the normal operation working condition, the high-temperature flue gas is caused to leak, and the heat exchange equipment is scrapped seriously. Therefore, the problem of thermal expansion is solved, and the key point of realizing the high-temperature flue gas waste heat recovery heat exchanger is realized.
Disclosure of Invention
The utility model aims to provide a plate heat exchanger suitable for high-temperature working conditions, so as to solve the problems in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a plate heat exchanger suitable for high temperature operating mode, includes the square plate heat exchanger casing that comprises cold side casing, hot side casing, upper cover plate, lower cover plate, and heat exchanger casing internally mounted has the cuboid form core of slope placement, and core inside hot side runner and cold side runner are crisscross arranged, are provided with cold side outlet connection pipe and cold side inlet connection pipe on the cold side casing lateral wall, are provided with hot side inlet connection pipe and hot side outlet connection pipe on the lateral wall of hot side casing, install the baffle that is connected with the core between cold side casing and the hot side casing, the top and the bottom of core and baffle are welded with upper cover plate and lower cover plate respectively, weld core side expansion joint between two baffles and the core side seam that are located core hot side inlet end, and core side expansion joint's top and bottom are connected with upper cover plate and lower cover plate's inner wall respectively; an expansion joint on the upper surface of the core body is welded between the top of the core body and the upper cover plate.
Preferably, the expansion joint on the side surface of the core body and the expansion joint on the upper surface of the core body are corrugated steel plates.
Preferably, an anti-collision distribution plate is arranged between the hot side inlet connecting pipe and the hot side inlet end of the core body and between the cold side inlet connecting pipe and the cold side inlet end of the core body, the side wall of the anti-collision distribution plate is welded with a supporting piece, and the other end of the supporting piece is fixed on the inner wall of the inlet connecting pipe.
Preferably, a plurality of sieve holes are uniformly distributed on the anti-impact distribution plate.
Preferably, the front of the inlet end of the cold side of the core body is provided with a flushing pipe, a plurality of spray heads which are opposite to the medium flow passage of the core body are arranged on the flushing pipe, and one end of the flushing pipe is communicated with a water inlet pipe arranged on the shell of the cold side.
Preferably, the cold side and the hot side of the lower cover plate are both provided with drain outlets.
Preferably, the cold side outlet connecting pipe, the cold side inlet connecting pipe, the hot side inlet connecting pipe and the hot side outlet connecting pipe are all provided with inspection manholes.
Preferably, the bottom of the lower cover plate is provided with a base.
The working process of the utility model is as follows:
when high-temperature flue gas enters the heat exchanger shell through the hot side inlet connecting pipe, the high-temperature flue gas enters the hot side flow channel of the core body after the pressure of the high-temperature flue gas is reduced through the anti-impact distribution plate, meanwhile, low-temperature medium entering the heat exchanger shell from the cold side inlet connecting pipe enters the cold side flow channel of the core body after the pressure of the low-temperature medium is reduced through the anti-impact distribution plate, and after the heat exchange of the high-temperature flue gas and the low-temperature medium, the high-temperature flue gas flows out from the hot side outlet connecting pipe, and the low-temperature medium flows out from the cold side outlet connecting pipe.
According to the utility model, the partition plates are arranged between the hot side shell, the cold side shell and the core body to separate the hot side from the cold side in the heat exchanger shell, the core body side expansion joint is welded between the two partition plates positioned at the inlet end of the hot side of the core body and the side seam of the core body, the core body upper surface expansion joint is welded between the top of the core body and the upper cover plate, when the heat exchanger runs under a high-temperature working condition, the thermal expansion in the length direction of the core body can be compensated through the core body side expansion joint, the thermal expansion in the height direction of the core body can be compensated through the core body upper surface expansion joint, the deformation of the core body is prevented, the leakage of smoke gas is caused, and the safe running of equipment is ensured.
According to the utility model, the impact-resistant distribution plates are arranged at the front of the hot side inlet end and the cold side inlet end of the core body, so that high-pressure high-temperature smoke and cold medium are dispersed and depressurized, the direct impact of the medium on the welding seam of the core body is avoided, the service life of the device is prolonged, the medium is distributed more uniformly, and the heat exchange efficiency of the device is improved.
The flushing pipeline is arranged in front of the cold side inlet end part of the core body, so that the core body flow channel can be cleaned on line under the working condition of no stop, medium in the flushing flow channel is deposited, and the heat exchange efficiency of the equipment is improved.
According to the utility model, the cold side and the hot side of the lower cover plate are provided with the sewage outlets, so that sewage generated during equipment cleaning and overhaul can be discharged in time.
According to the utility model, the inspection manholes are arranged on the cold side outlet connecting pipe, the cold side inlet connecting pipe, the hot side inlet connecting pipe and the hot side outlet connecting pipe, so that maintenance staff can conveniently inspect and maintain the inside of the equipment.
The utility model has compact structure and scientific and reasonable design.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic view of the impact distribution plate of FIG. 1;
FIG. 4 is a schematic view of the side expansion joint of the body of FIG. 1;
FIG. 5 is a schematic illustration of the flush line of FIG. 1;
in the figure: 1. the core, 2, upper cover plate, 3, drain, 4, cold side casing, 5, cold side import takeover, 6, baffle, 7, hot side casing, 8, hot side import takeover, 9, scour protection distributing plate, 10, flushing line, 11, core side expansion joint, 12, cold side export takeover, 13, hot side export takeover, 14, manhole, 15, base, 16, lower cover plate, 17, core upper surface expansion joint, 18, shower nozzle, 19 sieve meshes.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings.
The plate heat exchanger suitable for the high temperature working condition as shown in fig. 1 to 4 comprises a square plate heat exchanger shell consisting of a cold side shell 4, a hot side shell 7, an upper cover plate 2 and a lower cover plate 16, wherein a cuboid core body 1 which is obliquely arranged is arranged in the heat exchanger shell, hot side runners and cold side runners in the core body 1 are arranged in a staggered manner, a cold side outlet connecting pipe 12 and a cold side inlet connecting pipe 5 are arranged on the side wall of the cold side shell 4, a hot side inlet connecting pipe 8 and a hot side outlet connecting pipe 13 are arranged on the side wall of the hot side shell 7, a partition plate 6 connected with the core body 1 is arranged between the cold side shell 4 and the hot side shell 7, the top and the bottom of the core body 1 and the partition plate 6 are respectively welded with the upper cover plate 2 and the lower cover plate 16, a core body side expansion joint 11 is welded between the two partition plates 6 positioned at the hot side inlet end part of the core body 1 and the side seams of the core body 1, and the top and the bottom of the core body side expansion joint 11 are respectively connected with the inner walls of the upper cover plate 2 and the lower cover plate 16; an expansion joint 17 on the upper surface of the core body is welded between the top of the core body 1 and the upper cover plate 2.
Preferably, the expansion joint 11 on the side surface of the core body and the expansion joint 17 on the upper surface of the core body are corrugated steel plates.
Preferably, an anti-impact distribution plate 9 is arranged between the hot side inlet connection pipe 8 and the hot side inlet end part of the core body 1 and between the cold side inlet connection pipe 5 and the cold side inlet end part of the core body 1, a supporting piece is welded on the side wall of the anti-impact distribution plate 9, and the other end of the supporting piece is fixed on the inner wall of the inlet connection pipe.
The support piece is made of supporting round steel, one end of the support piece is welded with the anti-impact distribution plate 9, and the other end of the support piece is welded with the inner wall of the medium inlet connecting pipe.
Preferably, a plurality of sieve holes are uniformly distributed on the anti-impact distribution plate 9.
Preferably, the flushing pipe 10 is installed in front of the cold side inlet end and the hot side inlet end of the core 1, a plurality of spray heads 18 facing the medium flow passage of the core 1 are installed on the flushing pipe 10, and one end of the flushing pipe 10 is respectively communicated with the water inlet pipe ports installed on the cold side shell 4 and the hot side shell 7.
Preferably, both the cold side and the hot side of the lower cover plate 16 are provided with a drain 3.
Preferably, the cold side outlet connection pipe 12, the cold side inlet connection pipe 5, the hot side inlet connection pipe 8 and the hot side outlet connection pipe 13 are all provided with an inspection manhole 14.
Preferably, the bottom of the lower cover plate 16 is equipped with a base 15.
The working process of the utility model is as follows:
when the high-temperature flue gas enters the heat exchanger shell through the hot side inlet connecting pipe 8, the high-temperature flue gas enters the hot side flow channel of the core body 1 after the pressure of the high-temperature flue gas is reduced through the anti-impact distribution plate 9, meanwhile, the low-temperature medium entering the heat exchanger shell from the cold side inlet connecting pipe 5 enters the cold side flow channel of the core body 1 after the pressure of the low-temperature medium is reduced through the anti-impact distribution plate 9, and after the high-temperature flue gas and the low-temperature medium perform heat exchange, the high-temperature flue gas flows out from the hot side outlet connecting pipe 13, and the low-temperature medium flows out from the cold side outlet connecting pipe 12.
According to the utility model, the partition plates are arranged between the hot side shell, the cold side shell and the core body to separate the hot side from the cold side in the heat exchanger shell, the core body side expansion joint is welded between the two partition plates positioned at the inlet end of the hot side of the core body and the side seam of the core body, the core body upper surface expansion joint is welded between the top of the core body and the upper cover plate, when the heat exchanger runs under a high-temperature working condition, the thermal expansion in the length direction of the core body can be compensated through the core body side expansion joint, the thermal expansion in the height direction of the core body can be compensated through the core body upper surface expansion joint, the deformation of the core body is prevented, the leakage of smoke gas is caused, and the safe running of equipment is ensured.
The above are only preferred examples of the present utility model. It should be noted that other equivalent modifications and improvements will occur to those skilled in the art, and are intended to be within the scope of the present utility model.
Claims (8)
1. The utility model provides a plate heat exchanger suitable for high temperature operating mode, include by cold side casing (4), hot side casing (7), upper cover plate (2), square form plate heat exchanger casing that lower apron (16) constitute, heat exchanger casing internally mounted has cuboid form core (1) of slope placement, core (1) inside hot side runner and cold side runner are crisscross to be arranged, be provided with cold side outlet connection pipe (12) and cold side inlet connection pipe (5) on cold side casing (4) lateral wall, be provided with hot side inlet connection pipe (8) and hot side outlet connection pipe (13) on the lateral wall of hot side casing (7), its characterized in that: a partition plate (6) connected with the core body (1) is arranged between the cold side shell (4) and the hot side shell (7), the top and the bottom of the core body (1) and the partition plate (6) are respectively welded with the upper cover plate (2) and the lower cover plate (16), a core body side expansion joint (11) is welded between the two partition plates (6) at the hot side inlet end part of the core body (1) and a side seam of the core body (1), and the top and the bottom of the core body side expansion joint (11) are respectively connected with the inner walls of the upper cover plate (2) and the lower cover plate (16); an expansion joint (17) on the upper surface of the core body is welded between the top of the core body (1) and the upper cover plate (2).
2. A plate heat exchanger adapted for high temperature conditions according to claim 1, wherein: the side expansion joint (11) of the core body and the expansion joint (17) of the upper surface of the core body are corrugated steel plates.
3. Plate heat exchanger suitable for high temperature conditions according to claim 1 or 2, characterized in that: and a shock-proof distribution plate (9) is arranged between the hot side inlet connecting pipe (8) and the hot side inlet end part of the core body (1) and between the cold side inlet connecting pipe (5) and the cold side inlet end part of the core body (1), a supporting piece is welded on the side wall of the shock-proof distribution plate (9), and the other end of the supporting piece is fixed on the inner wall of the inlet connecting pipe.
4. A plate heat exchanger adapted for high temperature conditions according to claim 3, wherein: a plurality of sieve holes (19) are uniformly distributed on the anti-impact distribution plate (9).
5. The plate heat exchanger adapted for high temperature conditions according to claim 4, wherein: the front of the cold side inlet end part of the core body (1) is provided with a flushing pipe (10), the flushing pipe (10) is provided with a plurality of spray heads (18) which are opposite to the medium flow passage of the core body (1), and one end of the flushing pipe (10) is communicated with a water inlet pipe arranged on the cold side shell (4).
6. The plate heat exchanger adapted for high temperature conditions according to claim 5, wherein: and the cold side and the hot side of the lower cover plate (16) are provided with drain outlets (3).
7. The plate heat exchanger adapted for high temperature conditions according to claim 6, wherein: and the cold side outlet connecting pipe (12), the cold side inlet connecting pipe (5), the hot side inlet connecting pipe (8) and the hot side outlet connecting pipe (13) are respectively provided with an inspection manhole (14).
8. The plate heat exchanger adapted for high temperature conditions according to claim 7, wherein: the bottom of the lower cover plate (16) is provided with a base (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320113804.7U CN219714107U (en) | 2023-01-16 | 2023-01-16 | Plate heat exchanger suitable for high temperature working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320113804.7U CN219714107U (en) | 2023-01-16 | 2023-01-16 | Plate heat exchanger suitable for high temperature working condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219714107U true CN219714107U (en) | 2023-09-19 |
Family
ID=88016143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320113804.7U Active CN219714107U (en) | 2023-01-16 | 2023-01-16 | Plate heat exchanger suitable for high temperature working condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219714107U (en) |
-
2023
- 2023-01-16 CN CN202320113804.7U patent/CN219714107U/en active Active
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