CN210796635U - Corrosion-resistant seal head - Google Patents
Corrosion-resistant seal head Download PDFInfo
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- CN210796635U CN210796635U CN201921850385.5U CN201921850385U CN210796635U CN 210796635 U CN210796635 U CN 210796635U CN 201921850385 U CN201921850385 U CN 201921850385U CN 210796635 U CN210796635 U CN 210796635U
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- power supply
- end socket
- external power
- corrosion
- socket body
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Abstract
The utility model belongs to the technical field of the head, concretely relates to corrosion-resistant head. The corrosion-resistant end socket comprises an end socket body and an external power supply arranged on the end socket body, wherein the external power supply is a direct current power supply, and the negative electrode of the external power supply is electrically connected with the end socket body; the anode of the external power supply is also electrically connected with an auxiliary anode, and the auxiliary anode is arranged on the inner side of the seal head body in a protruding manner and is supported by an insulating layer; the external power supply is arranged in a power supply protection box outside the end socket body; the power supply protection box is provided with a through hole communicated with an external power supply lead-out wire; the composite coating is coated inside the end socket body and is a zinc-chromium and organic resin coating. The corrosion-resistant end socket is simple in structure, and the end socket body is protected by an external power supply cathode protection method in an electrochemical protection method, so that corrosion is slowed down, and the service life of the end socket is long.
Description
Technical Field
The utility model belongs to the technical field of the head, concretely relates to corrosion-resistant head.
Background
The end socket is an essential important part in pressure container equipment in petrochemical industry, atomic energy and food industry, and plays a role in sealing. Firstly, the upper bottom and the lower bottom of the pot-shaped pressure container are made, secondly, the pipeline is finished and is not ready to extend forwards, and then a seal head is used for sealing the pipe in a welding mode. Products that function much like closures have blind flanges and caps, but those two products are removable. And the seal head can not be detached after being welded. The matched pipe fittings include pressure vessels, pipelines, flange plates, elbows, tees, cross joints and other products. The quality of the seal head is directly related to the long-term safe and reliable operation of the pressure container.
The seal head of prior art adopts the coating method in order to make it have corrosion resisting property usually, and the coating in case the breakage appears, must make the seal head have "secretly hinder" to influence the life of seal head, and corrosion-resistant coating also can drop along with the extension of live time, need regularly to overhaul the change.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: to the above defect, the utility model provides a corrosion-resistant head, simple structure adopts the external power supply cathodic protection method in the electrochemical protection method to protect the head body to make the corruption slow down, head long service life.
The utility model provides a technical scheme that its technical problem adopted as follows: a corrosion-resistant end socket comprises an end socket body and an external power supply arranged on the end socket body, wherein the external power supply is a direct current power supply, and the negative electrode of the external power supply is electrically connected with the end socket body; the positive pole of external power supply still electricity is connected with auxiliary anode, auxiliary anode is at the inboard protruding setting of head body to support through the insulating layer. The direct current generated by the external power supply changes the potential of the end socket body, so that corrosion is slowed down or stopped, the end socket body made of metal has a good protection effect, and the end socket is long in service life.
Further, the external power supply is arranged in a power supply protection box outside the end socket body; the power protection box is provided with a through hole communicated with an external power lead-out wire. The external power supply is protected by the power protection box, the risks that the external power supply is poor in conductive capacity and causes stray current due to the fact that the external power supply is affected by the external environment are avoided, and the safety factor is high.
Furthermore, the external power supply is one of a rectifier, a potentiostat or a solar cell, and the rectifier, the potentiostat or the solar cell can reduce and provide stable protection current, so that the potential of the end socket body is always in the optimal protection range; renewable energy is used, and the power supply cost is reduced.
Further, the interior of the end socket body is coated with a composite coating, and the composite coating is a zinc-chromium and organic resin coating. Through setting up composite biocoating, combine with the electrochemistry protection method, further protect the head body to reach anticorrosive and self-lubricating effect, head long service life.
The utility model has the advantages that: by adopting the scheme, the potential of the end socket body is changed by the direct current generated by the external power supply, so that the corrosion is slowed down or stopped, the end socket body made of metal has a good protection effect, and the service life of the end socket is long; the composite coating is arranged and combined with an electrochemical protection method, so that the end socket body is further protected to achieve the effects of corrosion resistance and self-lubrication, and the service life of the end socket is long; the external power supply is protected by the power supply protection box, so that the risks of poor conduction capability and stray current of the external power supply caused by the influence of the external power supply on the external environment are avoided, and the safety coefficient is high; the rectifier, the potentiostat or the solar cell can reduce and provide stable protection current, so that the potential of the end socket body is always in the optimal protection range; renewable energy is used, and the power supply cost is reduced.
Drawings
The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of part A;
wherein: the sealing head comprises a sealing head body 1, an external power supply 2, a negative electrode 21, a positive electrode 22, an auxiliary anode 23, a composite coating 3, a power supply protection box 4, a through hole 41 and an insulating layer 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the corrosion-resistant end socket comprises an end socket body 1, wherein an external power supply 2 is arranged on the end socket body 1, the external power supply 2 is a direct current power supply, specifically, the external power supply 2 is a rectifier, and a negative electrode 21 of the external power supply 2 is electrically connected with the end socket body 1; the anode 22 of the external power supply 2 is also electrically connected with an auxiliary anode 23, and the auxiliary anode 23 is arranged on the inner side of the seal head body 1 in a protruding manner and is supported by an insulating layer 5; the composite coating 3 is coated inside the end socket body 1, and the composite coating 3 is a zinc-chromium and organic resin coating; the external power supply 2 is arranged in a power supply protection box 4 outside the end socket body 1; the power protection box 4 is provided with a through hole 41 through which an outgoing line of the external power supply 2 is communicated.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The utility model provides a corrosion-resistant head, includes head body (1), its characterized in that: an external power supply (2) is arranged on the end socket body (1), the external power supply (2) is a direct current power supply, and a negative electrode (21) of the external power supply (2) is electrically connected with the end socket body (1); the positive pole (22) of external power supply (2) still is connected with auxiliary anode (23) electrically, auxiliary anode (23) are in head body (1) inboard protrusion setting to support through insulating layer (5).
2. A corrosion resistant head according to claim 1, wherein: the external power supply (2) is arranged in a power supply protection box (4) outside the seal head body (1); the power protection box (4) is provided with a through hole (41) through which an outgoing line of the external power supply (2) is communicated.
3. A corrosion resistant head according to claim 1, wherein: the external power supply (2) is one of a rectifier, a potentiostat or a solar cell.
4. A corrosion resistant head according to claim 1, wherein: the end socket is characterized in that a composite coating (3) is coated inside the end socket body (1), and the composite coating (3) is a zinc-chromium and organic resin coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921850385.5U CN210796635U (en) | 2019-10-31 | 2019-10-31 | Corrosion-resistant seal head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921850385.5U CN210796635U (en) | 2019-10-31 | 2019-10-31 | Corrosion-resistant seal head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210796635U true CN210796635U (en) | 2020-06-19 |
Family
ID=71226091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921850385.5U Active CN210796635U (en) | 2019-10-31 | 2019-10-31 | Corrosion-resistant seal head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210796635U (en) |
-
2019
- 2019-10-31 CN CN201921850385.5U patent/CN210796635U/en active Active
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