Conductive sealing gasket structure of enamel equipment

Abstract

The invention relates to the technical field of gaskets, in particular to a conductive sealing gasket structure of enamel equipment, which comprises a polytetrafluoroethylene jacket and a metal corrugated elastic ring gasket, the two end faces of the metal corrugated elastic ring gasket are fixedly connected with the end faces of the two asbestos-free or graphite-free filling layers respectively, the inner side faces of the metal corrugated elastic ring gasket and the asbestos-free or graphite-free filling layers are fixedly connected with the inner side face of the polytetrafluoroethylene clamping sleeve, and wedge-shaped grooves are formed in the inner side face of the polytetrafluoroethylene clamping sleeve. According to the conductive sealing gasket structure for the enamel equipment, the chemical corrosion resistance and hardness of tetrafluoroethylene are not changed, the compression stroke of the gasket is large, the sealing performance is excellent, the conductive and sealing performance is achieved at the same time, the enamel equipment does not need to be adjusted at all, the service life of the enamel equipment is prolonged, and the service life of the enamel equipment is prolonged. Cost is low and efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of gaskets, in particular to a conductive sealing gasket structure for enamel equipment. Background Art

[0002] Enamel reactors are used for processing highly toxic, highly corrosive, and highly explosive materials. During the stirring or feeding process, static electricity is generated inside the reactor and gradually accumulates. If it is not eliminated in time, there is a risk of breakdown of the enamel layer or explosion.

[0003] The industry currently generally adopts methods such as changing the feeding method, reducing the stirring speed, and using metal inserts to remove static electricity. The above methods have the characteristics of low efficiency and high cost.

[0004] Some domestic practitioners use polytetrafluoroethylene powder and metal powder to mold and process polytetrafluoroethylene gaskets. This method has great limitations:

[0005] 1. Because the chemical corrosion resistance of tetrafluoroethylene is reduced, it is not suitable for strong corrosive conditions in glass-lined media;

[0006] 2. This type of gasket seal is usually hard and has a maximum thickness of 6mm. It has insufficient flange compensation capacity for glass-lined equipment, resulting in frequent leakage. Summary of the Invention

[0007] In view of the problems existing in the prior art, the present invention discloses a conductive sealing gasket structure for enameled equipment. The technical solution adopted is as follows: it includes a polytetrafluoroethylene jacket and a metal corrugated elastic ring gasket. The polytetrafluoroethylene jacket is annular as a whole and has a U-shaped cross-section. The two end faces of the metal corrugated elastic ring gasket are respectively fixedly connected to the end faces of two asbestos-free or graphite filling layers. The inner side surfaces of the metal corrugated elastic ring gasket and the asbestos-free graphite filling layer are fixedly connected to the inner side surface of the polytetrafluoroethylene jacket. A wedge-shaped groove is provided on the inner side surface of the polytetrafluoroethylene. A conductive wedge-shaped module is fixedly connected to the groove on the inner side surface of the polytetrafluoroethylene jacket. One end of the inner side of the conductive wedge-shaped module is fixedly connected to the metal corrugated elastic ring gasket.

[0008] As a preferred technical solution of the present invention, the conductive wedge module includes a PTFE component and a tantalum wire. The PTFE component is wedge-shaped, and a tantalum wire is fixedly installed in a through hole in the middle of the PTFE component. One end of the tantalum wire is flush with the side of the PTFE component, and the other end passes through the through hole on the polytetrafluoroethylene jacket and is fixedly connected to the metal corrugated elastic ring gasket.

[0009] As a preferred technical solution of the present invention, the diameter of the tantalum wire is 0.1 mm.

[0010] The beneficial effects of the present invention are as follows: the present invention does not change the chemical corrosion resistance of tetrafluoroethylene, can be applied to strong corrosion conditions, does not change the hardness of tetrafluoroethylene and the thickness of the gasket, the gasket has a large compression stroke, can meet the compensation capacity of the flange of glass-lined equipment, has excellent sealing performance, and adopts a wedge-shaped conductive module to enable the gasket to have both conductive and sealing properties, does not require any adjustment to the enameled equipment, has low cost and high efficiency, and is applicable to any enameled equipment and pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0012] Figure 2 This is a schematic diagram of the connection of the conductive wedge module of the present invention;

[0013] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of the conductive wedge-shaped module of the present invention.

[0015] In the figure: 1 polytetrafluoroethylene jacket, 2 conductive wedge module, 21 PTFE component, 22 tantalum wire, 3 asbestos-free or graphite filling layer, 4 metal corrugated elastic ring gasket. DETAILED DESCRIPTION

[0016] Example 1

[0017] like Figures 1 to 4As shown, the present invention discloses a conductive sealing gasket structure for enameled equipment, and the technical solution adopted is as follows: it includes a polytetrafluoroethylene jacket 1 and a metal corrugated elastic ring gasket 4, the polytetrafluoroethylene jacket 1 is annular as a whole, and has a U-shaped cross-section, the two end faces of the metal corrugated elastic ring gasket 4 are fixedly connected to the end faces of two asbestos-free or graphite filling layers 3, the inner side faces of the metal corrugated elastic ring gasket 4 and the asbestos-free graphite filling layer 3 are fixedly connected to the inner side face of the polytetrafluoroethylene jacket 1, a wedge-shaped groove is provided on the inner side face of the polytetrafluoroethylene 1, a conductive wedge-shaped module 2 is fixedly connected to the groove on the inner side face of the polytetrafluoroethylene jacket 1, one end of the inner side of the conductive wedge-shaped module 2 is fixedly connected to the metal corrugated elastic ring gasket 4, and the conductive wedge-shaped module 2 includes a PTFE component 21 and tantalum wire 22, the PTFE component 21 is wedge-shaped, and the tantalum wire 22 is fixedly installed in the through hole in the middle of the PTFE component 21. One end of the tantalum wire 22 is flush with the side of the PTFE component 21, and the other end passes through the through hole on the polytetrafluoroethylene jacket 1 and is fixedly connected to the metal corrugated elastic ring gasket 4. The diameter of the tantalum wire 22 is 0.1mm, which does not change the chemical corrosion resistance of tetrafluoroethylene and can be used in strong corrosion conditions. It does not change the hardness of tetrafluoroethylene and the thickness of the gasket. The gasket has a large compression stroke, which can meet the compensation capacity of the flange of glass-lined equipment and has excellent sealing performance. The wedge-shaped point module 2 can have both conductive and sealing properties, without any adjustment to the enameled equipment. It is low cost and high efficiency and is suitable for any enameled equipment and pipelines.

[0018] The working principle of the present invention is as follows: the gasket is installed in the glass-lined equipment, and the tantalum wire 22 on the wedge-shaped conductive module 2 conducts static electricity to the metal corrugated elastic pad 4 and then to other grounding equipment, completely conducting the static electricity out of the glass-lined equipment, protecting the equipment from the threat of static electricity. The gasket as a whole is composed of a polytetrafluoroethylene jacket 1 and a metal corrugated elastic ring pad 3. When used, the gasket has a large compression stroke and is suitable for static electricity conduction and sealing of enameled equipment.

[0019] Components not described in detail herein are prior art.

[0020] Although the specific embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes can be made without departing from the purpose of the present invention. Modifications or deformations that do not involve creative work are still within the scope of protection of the present invention.

Claims

1. A conductive sealing gasket structure for enamel equipment, characterized in that: The invention comprises a polytetrafluoroethylene jacket (1) and a metal corrugated elastic ring gasket (4); the polytetrafluoroethylene jacket (1) is annular in shape as a whole and has a U-shaped cross section; the two end faces of the metal corrugated elastic ring gasket (4) are respectively fixedly connected to the end faces of two asbestos-free or graphite-free filling layers (3); the inner side faces of the metal corrugated elastic ring gasket (4) and the asbestos-free or graphite-free filling layers (3) are fixedly connected to the inner side face of the polytetrafluoroethylene jacket (1); a wedge-shaped groove is provided on the inner side face of the polytetrafluoroethylene (1); a conductive wedge-shaped module (2) is fixedly connected to the groove on the inner side face of the polytetrafluoroethylene jacket (1); and one end of the inner side of the conductive wedge-shaped module (2) is fixedly connected to the metal corrugated elastic ring gasket (4).

2. The conductive sealing gasket structure for enamel equipment according to claim 1, characterized in that: The conductive wedge-shaped module (2) comprises a PTFE component (21) and a tantalum wire (22); the PTFE component (21) is wedge-shaped; the tantalum wire (22) is fixedly installed in a through hole in the middle of the PTFE component (21); one end of the tantalum wire (22) is flush with the side surface of the PTFE component (21); and the other end passes through a through hole on a polytetrafluoroethylene jacket (1) and is fixedly connected to a metal corrugated elastic ring gasket (4).

3. The conductive sealing gasket structure for enamel equipment according to claim 1, characterized in that: The diameter of the tantalum wire (22) is 0.1 mm.

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