CN211451967U - Heat exchanger with anticorrosion coating on outer wall of heat exchange tube - Google Patents
Heat exchanger with anticorrosion coating on outer wall of heat exchange tube Download PDFInfo
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- CN211451967U CN211451967U CN201921702243.4U CN201921702243U CN211451967U CN 211451967 U CN211451967 U CN 211451967U CN 201921702243 U CN201921702243 U CN 201921702243U CN 211451967 U CN211451967 U CN 211451967U
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Abstract
The utility model belongs to the technical field of the heat exchanger, concretely relates to heat exchanger of heat exchange tube outer wall area anticorrosive coating, including the shell, the shell both ends set up the tube sheet, and the tube sheet has connect the head, is equipped with a plurality of heat exchange tubes between the tube sheet at both ends in the shell, is equipped with the baffling board in the shell, is equipped with a plurality of baffling boards on the baffling board, baffling board single face chamfer, the heat exchange tube follow the baffling board in pass, heat exchange tube outer wall and baffling board are downthehole all to be equipped. The heat exchanger with the anticorrosion coating on the outer wall of the heat exchange tube of the utility model is chamfered at the baffle plate hole side in the tube penetrating direction, thereby being convenient for penetrating and assembling and avoiding hard scratch; and moreover, an anticorrosive coating is added on the inner surface of the hole of the baffle plate, the friction between the original coating and steel is optimized to the mutual friction between the coatings, and the damage of the coatings is avoided. Can be with the damage of heat exchange tube outer wall coating will minimum, effectively prolonged the anticorrosive operation cycle of heat exchange tube.
Description
Technical Field
The utility model relates to a heat exchanger of heat exchange tube outer wall area anticorrosive coating belongs to heat exchanger technical field.
Background
Modern large petrochemical devices all require continuous, stable and safe operation, which puts higher demands on long-period and reliable operation of equipment. Various anticorrosion heat exchangers are applied more and more widely aiming at different media. Wherein the water cooler made of carbon steel accounts for 50 percent of the total number of heat exchangers of various devices. When circulating water in the water cooler exchanges heat with a medium with higher temperature, the pipe wall at the water side is easy to scale; when the flow rate of the circulating water is low and the water quality is poor, slime is accumulated on the pipe wall. The scale layer and the slime not only increase the thermal resistance and reduce the heat exchange efficiency of the equipment, but also have the possibility of causing internal leakage due to corrosion in the running process of the water cooler. The outer wall of the heat exchange tube is provided with the anticorrosive coating to reduce tube bundle scaling and delay corrosion leakage of the heat exchanger, but the existing heat exchanger has defects in structure and construction process: baffle hole and tube sheet hole size and equipment in-process are to the fish tail of coating, cause heat exchange tube outer wall coating to drop to some extent, and after the fish tail, the equipment construction or operation in-process can't effectively be restoreed. And because of the limitation of the process, the end part of the heat exchange tube is not coated, and the whole corrosion resistance effect is influenced.
SUMMERY OF THE UTILITY MODEL
According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: the heat exchanger with the anti-corrosion coating on the outer wall of the heat exchange tube is provided, the integrity of the anti-corrosion coating is guaranteed, the problem that damage of the coating cannot be repaired in the installation process in the prior art is solved, and the overall anti-corrosion effect is guaranteed.
Heat exchanger of heat exchange tube outer wall area anticorrosive coating, including the shell, the shell both ends set up the tube sheet, the tube sheet has connect the head, is equipped with a plurality of heat exchange tubes in the shell between the tube sheet at both ends, is equipped with the baffling board in the shell, is equipped with a plurality of baffling board holes on the baffling board, baffling board hole single face chamfer, the heat exchange tube is followed the baffling board in pass, heat exchange tube outer wall and baffling board are downthehole all to be equipped with anticorrosive coating.
Chamfering is carried out on one side of the baffle hole, and when the heat exchange tube is assembled, the heat exchange tube penetrates through the side, provided with the chamfer, of the baffle hole, so that the heat exchange tube is convenient to assemble; the outer wall of the heat exchange tube and the baffle plate holes are internally provided with the anticorrosive coatings, and the two coatings have the same hardness during assembly, so that the damage of the coatings on the outer wall of the heat exchange tube is avoided. The utility model discloses can be with the damage of heat exchange tube coating will be minimum, effectively prolonged the anticorrosive operation cycle of heat exchange tube.
The baffle hole and the heat exchange tube are in transition fit, the obtained clearance and interference are small, and the hole shaft (namely the baffle hole and the heat exchange tube) has good centering performance and coaxiality and is easy to disassemble and assemble.
The heat exchange tube and the tube plate are connected in an expansion joint mode. The end of the heat exchange tube extending into the tube plate hole is extruded by the tube expander to enable the end of the tube to generate plastic deformation, the tube plate hole generates elastic deformation at the same time, and the tube plate and the end of the heat exchange tube are tightly attached together to achieve the purpose of sealing, fastening and connecting. The part of the end part of the heat exchange tube, which is not provided with the coating, is wrapped by the tube plate hole, so that the whole corrosion-resistant effect is improved.
The end sockets at the two ends of the shell are respectively provided with a tube pass inlet and a tube pass outlet; the shell is provided with a shell pass inlet and a shell pass outlet.
Compared with the prior art, the utility model beneficial effect who has is:
the heat exchanger with the anticorrosion coating on the outer wall of the heat exchange tube of the utility model is chamfered at the baffle plate hole side in the tube penetrating direction, thereby being convenient for penetrating and assembling and avoiding hard scratch; and moreover, an anticorrosive coating is added on the inner surface of the hole of the baffle plate, the friction between the original coating and steel is optimized to the mutual friction between the coatings, and the damage of the coatings is avoided. Can be with the damage of heat exchange tube outer wall coating will minimum, effectively prolonged the anticorrosive operation cycle of heat exchange tube. The utility model discloses after the input operation, can realize shell side anticorrosive coating's heat exchanger life extension at least one time and above, can make can not take place interim shutdown and salvage or overhaul of the equipments because of leaking in the water cooler in two at least operation periods of device. After the technical scheme is put into use, the intrinsic safe operation of the equipment is ensured, the maintenance cost of the equipment is reduced, the continuous operation capacity of production is improved, and the maximization of the production benefit is realized. Has wide application prospect in the petrochemical industry.
Drawings
FIG. 1 is a perspective view of the present invention with a cross-sectional structure;
fig. 2 is a second perspective view of the cross-sectional structure of the present invention;
fig. 3 is a schematic plan view of the cross-sectional structure of the present invention;
FIG. 4 is a partial enlarged view of portion A of FIG. 3;
fig. 5 is a schematic view of the heat exchange tubes and baffles.
In the figure: 1. sealing the end; 2. a tube side outlet; 3. a shell-side inlet; 4. a housing; 5. a tube sheet; 6. a tube side inlet; 7. a shell-side outlet; 8. a heat exchange pipe; 9. a baffle plate; 10. and (4) an anticorrosive coating.
Detailed Description
The invention will be further described with reference to the following examples:
as shown in fig. 1 ~ 5, heat exchanger of heat exchange tube outer wall area anticorrosive coating, including shell 4, 4 both ends of shell set up tube sheet 5, and tube sheet 5 has connect head 1, is equipped with a plurality of heat exchange tubes 8 between the tube sheet 5 at both ends in the shell 4, is equipped with baffling board 9 in the shell 4, is equipped with a plurality of baffling holes on the baffling board 9, baffling board hole single face chamfer, heat exchange tube 8 follow the baffling hole in pass, 8 outer walls of heat exchange tube and the baffling board are downthehole all to be equipped with anticorrosive coating 10.
Wherein, the baffle hole and the heat exchange tube 8 are in transition fit. The heat exchange tube 8 and the tube plate 5 are connected in an expansion joint mode.
The end sockets 1 at the two ends of the shell 4 are respectively provided with a tube pass inlet 6 and a tube pass outlet 2; the shell 4 is provided with a shell side inlet 3 and a shell side outlet 7.
The utility model discloses carry out the chamfer in the baffling board hole side of poling direction, increased anticorrosive coating 10 at baffling board hole internal surface, optimize the friction between original coating and the iron and steel for the mutual friction between the coating, avoided the damage of coating. Can be with the damage of heat exchange tube outer wall coating will minimum, effectively prolonged 8 anticorrosive operation cycles of heat exchange tube.
Claims (4)
1. The utility model provides a heat exchanger of anticorrosive coating of heat exchange tube outer wall area, includes shell (4), and shell (4) both ends set up tube sheet (5), and tube sheet (5) have connect head (1), are equipped with a plurality of heat exchange tubes (8), its characterized in that between tube sheet (5) at both ends in shell (4): be equipped with baffling board (9) in shell (4), be equipped with a plurality of baffling board holes on baffling board (9), baffling board hole single face chamfer, heat exchange tube (8) are followed the baffling board in pass, heat exchange tube (8) outer wall and baffling are downthehole all to be equipped with anticorrosive coating (10).
2. The heat exchanger with the anticorrosion coating on the outer wall of the heat exchange tube according to claim 1, characterized in that: the baffle hole and the heat exchange tube (8) are in transition fit.
3. The heat exchanger with the anticorrosion coating on the outer wall of the heat exchange tube according to claim 1, characterized in that: the heat exchange tube (8) and the tube plate (5) are connected in an expansion joint mode.
4. The heat exchanger with the anticorrosion coating on the outer wall of the heat exchange tube according to claim 1, characterized in that: the end sockets (1) at the two ends of the shell (4) are respectively provided with a tube pass inlet (6) and a tube pass outlet (2); the shell (4) is provided with a shell pass inlet (3) and a shell pass outlet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921702243.4U CN211451967U (en) | 2019-10-10 | 2019-10-10 | Heat exchanger with anticorrosion coating on outer wall of heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921702243.4U CN211451967U (en) | 2019-10-10 | 2019-10-10 | Heat exchanger with anticorrosion coating on outer wall of heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211451967U true CN211451967U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921702243.4U Active CN211451967U (en) | 2019-10-10 | 2019-10-10 | Heat exchanger with anticorrosion coating on outer wall of heat exchange tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN211451967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797838A (en) * | 2021-01-15 | 2021-05-14 | 辽阳市隆达化工设备有限公司 | High-efficient shock attenuation graphite heat exchanger |
| CN113418410A (en) * | 2021-06-09 | 2021-09-21 | 鲁西化工集团股份有限公司煤化工二分公司 | High-temperature heat exchanger and manufacturing process thereof |
-
2019
- 2019-10-10 CN CN201921702243.4U patent/CN211451967U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797838A (en) * | 2021-01-15 | 2021-05-14 | 辽阳市隆达化工设备有限公司 | High-efficient shock attenuation graphite heat exchanger |
| CN113418410A (en) * | 2021-06-09 | 2021-09-21 | 鲁西化工集团股份有限公司煤化工二分公司 | High-temperature heat exchanger and manufacturing process thereof |
| CN113418410B (en) * | 2021-06-09 | 2022-06-03 | 鲁西化工集团股份有限公司煤化工二分公司 | High-temperature heat exchanger and manufacturing process thereof |
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