CN212870887U - Anti-corrosion device for heat exchanger bolt - Google Patents
Anti-corrosion device for heat exchanger bolt Download PDFInfo
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- CN212870887U CN212870887U CN202021049509.2U CN202021049509U CN212870887U CN 212870887 U CN212870887 U CN 212870887U CN 202021049509 U CN202021049509 U CN 202021049509U CN 212870887 U CN212870887 U CN 212870887U
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- bolt
- connecting terminal
- nut
- welded
- protective sleeve
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Abstract
The utility model provides an anticorrosive device for heat exchanger bolt. One end of a protective sleeve in the device is welded with a blocking plate in a sealing mode, the other end of the protective sleeve is welded with a connecting terminal, and the other end of the connecting terminal is welded with a nut, so that the nut, the connecting terminal, the protective sleeve and the blocking plate are integrated. The bolt penetrates through the pipe box connecting flange and the shell connecting flange, two ends of the bolt are in threaded connection with the nut welded with the connecting terminal, the protective sleeve and the blocking plate, and the pipe plate padded with the gasket is fastened. By using the device, the bolt can be freely disassembled in an extremely corrosive environment, the assembly is also convenient, the adverse factors influencing the safe operation of chemical equipment are reduced, the waste of resources can be reduced, the production cost is reduced, and the production and management cost is saved.
Description
Technical Field
The utility model relates to petrochemical industry equipment field, in particular to an anticorrosive device for heat exchanger bolt.
Background
Along with the large-scale and diversified production capacity of chemical equipment in chemical enterprises in China. The volume of more and more equipment is bigger and bigger along with it, and the operating mode environment is also more and more complicated abominable simultaneously. In most chemical equipment, bolts are commonly used for connecting heat exchanger equipment, and the bolts are generally required to be removed when the heat exchanger equipment needs to be cleaned and repaired. Most of bolts used at present are made of carbon steel, if chemical equipment operates in an extremely corrosive environment all year round, the bolts are easily corroded and cannot be smoothly taken down and installed, so that the safe operation of the chemical equipment is influenced, the service life of the chemical equipment is shortened, the normal production of chemical enterprises is seriously influenced, and the normal operation of production equipment is delayed.
Disclosure of Invention
An object of the utility model is to provide a heat exchanger bolt's anticorrosive device as an organic whole with nut and connecting terminal, protective sheath and closure plate welding. The utility model solves the technical problem that the bolt in the extremely strong corrosive environment can be freely disassembled, the assembly is also convenient, and the adverse factors influencing the safe operation of chemical equipment are reduced.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides an anticorrosive device for heat exchanger bolt, includes bolt, nut, connecting terminal, protection and closure plate, the one end seal welding of protective sheath in the device has the closure plate, and the other end welding of protective sheath has connecting terminal, and connecting terminal's the other end welds mutually with the nut, makes nut, connecting terminal, protective sheath and closure plate become a whole.
A bolt in the device penetrates through a pipe box connecting flange and a shell connecting flange, two ends of the bolt are in threaded connection with a nut welded with a connecting terminal, a protective sleeve and a blocking plate, and a pipe plate padded with a gasket is fastened.
The utility model discloses an actively the effect does:
1. the device welds the nut, the connecting terminal, the protective sleeve and the blocking plate into a whole, and after the nut is connected with the bolt, corrosive gas is prevented from entering the protective sleeve to corrode the bolt;
2. the bolt can be freely disassembled and assembled in an extremely corrosive environment by using the device, so that the adverse factors influencing the safe operation of chemical equipment are reduced;
3. the device can reduce the waste of resource, reduction in production cost practices thrift production and administrative cost.
Drawings
FIG. 1 is a partial structural schematic view of a corrosion prevention device of a bolt of a heat exchanger at the position A in FIG. 2;
FIG. 2 is a schematic view showing the installation of the corrosion prevention device of the bolt of the heat exchanger.
Wherein in the figure: 1. the heat exchanger comprises bolts, 2, nuts, 3, connecting terminals, 4, protective sleeves, 5, blocking plates, 6, a pipe box connecting flange, 7, a gasket, 8, a pipe plate, 9, a shell connecting flange, 10 a heat exchanger shell, 11, a heat exchange pipe bundle, 12 and a pipe box.
Detailed Description
The technical solution of the present invention will be further described clearly and completely with reference to the accompanying drawings.
Referring to the attached drawings 1-2, one end of a protective sleeve 4 in the device is welded with a blocking plate 5 in a sealing mode, the other end of the protective sleeve 4 is welded with a connecting terminal 3, and the other end of the connecting terminal 3 is welded with a nut 2, so that the nut 2, the connecting terminal 3, the protective sleeve 4 and the blocking plate 5 are integrated.
A bolt 1 in the device penetrates through a pipe box connecting flange 6 and a shell connecting flange 9, two ends of the bolt 1 are in threaded connection with a nut 2 welded with a connecting terminal 3, a protective sleeve 4 and a blocking plate 5, and a pipe plate 8 padded with a gasket 7 is fastened.
When the heat exchanger is installed, a bolt 1 penetrates through a pipe box connecting flange 6 and a shell connecting flange 9, two ends of the bolt 1 are respectively fastened by nuts 2 welded with a connecting terminal 3, a protective sleeve 4 and a blocking plate 5 into a whole, and a pipe plate 8 padded with a gasket 7 is fastened. Because the end cover of bolt 1 has protective sheath 4, and the screw thread in bolt 1 is isolated with corrosive gas, makes bolt 1 not corroded in the extremely strong environment of corrosivity.
When the heat exchanger tube box 12 needs to be disassembled and the heat exchanger tube bundle 11 in the heat exchanger shell 10 is drawn out, the nut 2 is firstly taken down, the connecting terminal 3, the protective sleeve 4 and the blocking plate 5 are taken down together while the nut 2 is taken down, the screw rod 1 is drawn out from the tube box connecting flange 6 and the shell connecting flange 9, and at the moment, the heat exchanger tube bundle 11 in the heat exchanger shell 10 can be disassembled, cleaned or replaced.
Claims (2)
1. The utility model provides an anticorrosive device for heat exchanger bolt, includes bolt (1), nut (2), connecting terminal (3), protective sheath (4) and closure plate (5), its characterized in that: one end of a protective sleeve (4) in the device is hermetically welded with a blocking plate (5), the other end of the protective sleeve (4) is welded with a connecting terminal (3), and the other end of the connecting terminal (3) is welded with a nut (2), so that the nut (2), the connecting terminal (3), the protective sleeve (4) and the blocking plate (5) are integrated.
2. The corrosion prevention device for a bolt of a heat exchanger according to claim 1, wherein: bolt (1) among the device passes pipe case flange (6) and casing flange (9), and the both ends of bolt (1) and the nut (2) that have welding connecting terminal (3), protective sheath (4) and closure plate (5) carry out threaded connection to tube sheet (8) fastening that will have filled up gasket (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021049509.2U CN212870887U (en) | 2020-06-10 | 2020-06-10 | Anti-corrosion device for heat exchanger bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021049509.2U CN212870887U (en) | 2020-06-10 | 2020-06-10 | Anti-corrosion device for heat exchanger bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212870887U true CN212870887U (en) | 2021-04-02 |
Family
ID=75208998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021049509.2U Active CN212870887U (en) | 2020-06-10 | 2020-06-10 | Anti-corrosion device for heat exchanger bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212870887U (en) |
-
2020
- 2020-06-10 CN CN202021049509.2U patent/CN212870887U/en active Active
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