Glass lining pipe orifice flange sealing surface porcelain glaze protection device

Abstract

The utility model discloses a porcelain glaze protection device for a sealing surface of a glass-lined pipe orifice flange, and relates to the technical field of fine chemical engineering. The utility model relates to a porcelain glaze protection device for a flange sealing surface of a glass-lined pipe orifice, which comprises a glass-lined equipment pipe orifice, and further comprises a polytetrafluoroethylene sleeve with an L-shaped upper end part, an L-shaped lower end part inserted into the glass-lined equipment pipe orifice, and an upper end part of the polytetrafluoroethylene sleeve wraps the upper end part of the glass-lined equipment pipe orifice; according to the utility model, through the wrapping of the polytetrafluoroethylene sleeve and the positioning and fixing of the tension spring and the L-shaped limiting plate, the protection device can be stably arranged on the pipe orifice of the glass lining equipment, so that the ceramic glaze of a sealing surface is effectively protected, and the material characteristics of the polytetrafluoroethylene sleeve are utilized, so that the corrosion of corrosion factors such as acid gas to the pipe orifice can be prevented, and the service life of the glass lining equipment is prolonged. The stress can be dispersed to a certain extent, the damage of porcelain glaze on a sealing surface caused by corrosion and stress concentration is reduced, the failure frequency of equipment is reduced, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of glass-lined equipment pipe installation in fine chemical industry, specifically, it relates to a device for protecting the enamel glaze on the sealing surface of a glass-lined pipe flange. Background Technology

[0002] In the field of fine chemicals, glass-lined equipment is widely used due to its good corrosion resistance and chemical stability. However, in actual use, the enamel on the sealing surface of the pipe openings of glass-lined equipment faces many problems.

[0003] Currently, traditional protection methods are insufficient to effectively cope with the challenges of the external environment, especially in environments with corrosive media (such as acidic gases). The metal on the outside of the pipe is easily corroded, which in turn affects the integrity of the enamel on the sealing surface. At the same time, uneven flange installation torque often occurs during equipment installation, which leads to stress concentration on the sealing surface, making the enamel prone to cracking and damage, thereby causing equipment failure, increasing maintenance costs, and shortening the service life of the equipment. In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a enamel protection device for the sealing surface of a glass-lined pipe flange that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A protective device for the enamel glaze on the sealing surface of a glass-lined pipe flange includes a glass-lined equipment pipe opening and further includes: a PTFE sleeve with an L-shaped upper end, inserted into the glass-lined equipment pipe opening, wherein the upper end of the PTFE sleeve covers the upper end of the glass-lined equipment pipe opening, a connecting seat is symmetrically fixedly connected to the PTFE sleeve, a sliding groove is formed on the connecting seat, an L-shaped limiting plate is slidably connected in the sliding groove, one end of the L-shaped limiting plate near the outer wall of the PTFE sleeve is engaged with the lower surface of the upper end of the glass-lined equipment pipe opening; a tension spring is disposed between the L-shaped limiting plate and the connecting seat, one end of the tension spring is fixedly connected to the L-shaped limiting plate, and the other end is fixedly connected to the connecting seat.

[0007] To improve the stability of the connection between the PTFE sleeve and the glass-lined equipment nozzle, preferably, a locking block corresponding to the L-shaped limiting plate is fixedly installed on the lower surface of the upper end of the glass-lined equipment nozzle. The locking block has a limiting groove, and the end of the L-shaped limiting plate near the outer wall of the PTFE sleeve is inserted into the limiting groove.

[0008] To improve the protection of the upper surface and outer facade of the upper end of the enameled equipment pipe opening, preferably, a sealing gasket is fixedly installed on the lower surface of the upper end of the enameled equipment pipe opening. The sealing gasket is L-shaped and covers the upper surface and outer facade of the upper end of the enameled equipment pipe opening.

[0009] To enhance the sealing between the outer wall of the glass-lined equipment nozzle and the inner wall of the PTFE sleeve, preferably, an annularly arranged airbag is also included. The airbag is disposed on the inner wall of the PTFE sleeve, and a sealing groove for use with the airbag is provided on the outer wall of the glass-lined equipment nozzle. A gas supply pipe connected to the airbag is provided on the PTFE sleeve, and the gas supply pipe is used to connect an external gas source to deliver gas into the airbag.

[0010] For controlling the opening and closing of the gas pipeline, a valve switch is further included, which is disposed on the gas pipeline.

[0011] To facilitate the operator in moving the L-shaped limiting plate by pulling the pull ring, preferably, a pull ring is also included, which is fixedly connected to the end of the L-shaped limiting plate away from the outer wall of the PTFE sleeve.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0013] This invention, through the wrapping of a PTFE sleeve and the positioning and fixing of a tension spring and an L-shaped limiting plate, ensures that the protective device can be stably installed on the pipe opening of the glass-lined equipment, providing effective protection for the enamel sealing surface. Utilizing the material properties of the PTFE sleeve, it can prevent corrosion from acidic gases and other corrosive factors from reaching the pipe opening, and can also disperse stress to a certain extent, reducing damage to the enamel sealing surface caused by corrosion and stress concentration, thus lowering the frequency of equipment failures and extending the equipment's service life. Furthermore, due to its relatively simple structure, installation and disassembly are convenient, facilitating equipment maintenance and repair, and improving the operability and maintainability of the equipment. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the PTFE sleeve and glass-lined equipment nozzle of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the PTFE sleeve of this utility model;

[0016] Figure 3 This is a cross-sectional view of the PTFE sleeve and airbag of this utility model;

[0017] Figure 4 This is a cross-sectional view of the pipe opening and locking block of the glass-lined equipment of this utility model;

[0018] Figure 5This is a schematic diagram of the structure of the pipe opening and locking block of the glass-lined equipment of this utility model;

[0019] Figure 6 This is a utility model Figure 1 Enlarged view of part A in the middle.

[0020] In the diagram: 1. Glass-lined equipment nozzle; 2. PTFE sleeve; 201. Sealing gasket; 202. Airbag; 203. Gas supply pipe; 204. Sealing groove; 205. Valve switch; 3. Connecting seat; 301. L-shaped limit plate; 302. Tension spring; 303. Pull ring; 304. Locking block; 305. Limit groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0022] Example 1:

[0023] Reference Figure 1 , Figure 2 , Figure 3 , Figure 6 A protective device for the enamel glaze on the sealing surface of a glass-lined pipe flange includes a glass-lined equipment pipe 1 and further includes: a PTFE sleeve 2 with an L-shaped upper end, inserted into the glass-lined equipment pipe 1, wherein the upper end of the PTFE sleeve 2 covers the upper end of the glass-lined equipment pipe 1, a connecting seat 3 is symmetrically fixedly connected to the PTFE sleeve 2, a sliding groove is provided on the connecting seat 3, an L-shaped limiting plate 301 is slidably connected in the sliding groove, one end of the L-shaped limiting plate 301 near the outer wall of the PTFE sleeve 2 is engaged with the lower surface of the upper end of the glass-lined equipment pipe 1; a tension spring 302 is disposed between the L-shaped limiting plate 301 and the connecting seat 3, one end of the tension spring 302 is fixedly connected to the L-shaped limiting plate 301, and the other end is fixedly connected to the connecting seat 3;

[0024] In use, first, align the PTFE sleeve 2 with the glass-lined equipment nozzle 1. Then, pull the L-shaped limiting plate 301 to move it away from the outer wall of the PTFE sleeve 2. As the L-shaped limiting plate 301 moves, it stretches the tension spring 302. Next, insert the PTFE sleeve 2 along the nozzle. When the PTFE sleeve 2 is inserted into the appropriate position, slowly open and close the L-shaped limiting plate 301. Under the action of the elastic potential energy released by the tension spring 302 after stretching, the L-shaped limiting plate 301 moves towards the outer wall of the PTFE sleeve 2 and engages with the glass-lined equipment nozzle 1. On the lower surface of the end, the PTFE sleeve 2 is positioned and initially fixed. Then, the L-shaped structure of the upper end of the PTFE sleeve 2 is used to wrap the upper end of the glass-lined equipment pipe opening 1, thereby protecting the pipe opening. At the same time, because the PTFE sleeve 2 has excellent corrosion resistance, it can prevent acidic gases and other corrosive factors from eroding the pipe opening. Its softness can also disperse stress to a certain extent, reduce the damage to the enamel of the sealing surface caused by corrosion and stress concentration, reduce the failure frequency of the equipment, and extend the service life of the equipment.

[0025] In summary, due to its relatively simple structure, it is easy to install and disassemble, which facilitates equipment maintenance and repair, and improves the operability and maintainability of the equipment.

[0026] Example 2:

[0027] Reference Figure 1 , Figure 4 , Figure 5 A protective device for the enamel glaze on the sealing surface of a glass-lined pipe flange is basically the same as in Embodiment 1. Furthermore, a locking block 304 corresponding to an L-shaped limiting plate 301 is fixedly installed on the lower surface of the upper end of the glass-lined equipment pipe 1. A limiting groove 305 is provided on the locking block 304, and one end of the L-shaped limiting plate 301 near the outer wall of the PTFE sleeve 2 is inserted into the limiting groove 305.

[0028] When the PTFE sleeve 2 is installed into the port 1 of the glass-lined equipment, the end of the L-shaped limiting plate 301 near the outer wall of the PTFE sleeve 2 will be inserted into the limiting groove 305 of the locking block 304 under the elastic force of the tension spring 302. This further improves the installation stability of the PTFE sleeve 2, prevents its displacement, and makes the sealing and protection effect of the protective device more stable and durable. It also reduces the risk that the enamel may be exposed to a corrosive environment or subjected to additional stress due to the loosening of the protective device, thereby improving the reliability and safety of the equipment.

[0029] Example 3:

[0030] Reference Figure 1A protective device for the enamel glaze on the sealing surface of a glass-lined pipe flange is basically the same as that in Embodiment 1. Furthermore, a sealing gasket 201 is fixedly installed on the lower surface of the upper end of the glass-lined equipment pipe 1. The sealing gasket 201 is L-shaped and covers the upper surface and outer vertical surface of the upper end of the glass-lined equipment pipe 1.

[0031] Before or simultaneously with the installation of the PTFE sleeve 2, install the sealing gasket 201 on the lower surface of the upper end of the glass-lined equipment nozzle 1, so that the sealing gasket 201 covers the upper surface and outer vertical surface of the upper end of the glass-lined equipment nozzle 1. Then, perform the installation operation of the PTFE sleeve 2, so that the sealing gasket 201 and the PTFE sleeve 2 work together to seal and protect the nozzle. On the one hand, it can prevent external corrosive gases from entering through the gap between the PTFE sleeve 2 and the glass-lined equipment nozzle 1, further enhancing the sealing effect. On the other hand, it can protect the outer vertical surface of the glass-lined equipment nozzle 1, preventing acidic gases and other corrosive media from directly contacting the metal outside the nozzle, reducing the possibility of corrosion, and thus extending the service life of the equipment.

[0032] Example 4:

[0033] Reference Figure 1 , Figure 3 , Figure 4 A protective device for the enamel glaze on the sealing surface of a glass-lined pipe flange is basically the same as that in Embodiment 1. Furthermore, it also includes an airbag 202 arranged in a ring. The airbag 202 is disposed on the inner wall of the PTFE sleeve 2. A sealing groove 204 that works with the airbag 202 is provided on the outer wall of the glass-lined equipment pipe 1. A gas supply pipe 203 connected to the airbag 202 is provided on the PTFE sleeve 2. The gas supply pipe 203 is used to connect an external gas source to supply gas into the airbag 202.

[0034] After the installation of the PTFE sleeve 2 is completed, an external gas source is connected through the gas supply pipe 203. Then, the gas source is turned on to deliver gas into the air bag 202, causing the air bag 202 to expand and fill the gap between the sealing groove 204 and the inner wall of the PTFE sleeve 2, thereby achieving a tighter fit and enhancing the sealing effect. At the same time, the expanded air bag 202 can generate a certain pressure, making the connection between the PTFE sleeve 2 and the glass-lined equipment nozzle 1 tighter, further enhancing the protection of the glass-lined equipment nozzle 1, reducing the risk of leakage and the damage to the enamel caused by stress concentration.

[0035] At the same time, the airbag 202 can achieve the required sealing effect by adjusting the pressure and volume of the air source as needed.

[0036] Example 5:

[0037] Reference Figure 2A protective device for the enamel sealing surface of a glass-lined pipe flange is basically the same as that in Embodiment 1. Furthermore, it also includes a valve switch 205, which is installed on the gas pipeline 203.

[0038] When inflation is required, open valve switch 205 to allow gas to enter airbag 202 through air supply pipe 203 to achieve inflation.

[0039] When deflation is required, turn off the gas supply and open valve switch 205 to release the gas in airbag 202;

[0040] By operating the valve switch 205, the inflation and deflation process of the airbag 202 can be easily controlled, thereby achieving precise control over the degree of inflation of the airbag 202 to achieve different sealing effects.

[0041] Example 6:

[0042] Reference Figure 2 , Figure 6 A protective device for the enamel glaze on the sealing surface of a glass-lined pipe flange is basically the same as that in Embodiment 1. Furthermore, it also includes a pull ring 303, which is fixedly connected to the end of the L-shaped limiting plate 301 away from the outer wall of the PTFE sleeve 2.

[0043] When installing or removing the protective device, the L-shaped limiting plate 301 can be easily pulled by the pull ring 303 to overcome the tension of the tension spring 302 and disengage from the limiting groove 305 of the locking block 304, which facilitates the insertion or removal of the PTFE sleeve 2, reduces the difficulty of installing and removing the protective device, and improves the operating efficiency.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A device for protecting the enamel glaze on the sealing surface of a glass-lined pipe flange, comprising a glass-lined equipment pipe flange (1), characterized in that, Also includes: A PTFE sleeve (2) with an L-shaped upper end is inserted into the port (1) of the glass-lined equipment. The upper end of the PTFE sleeve (2) covers the upper end of the glass-lined equipment pipe opening (1). A connecting seat (3) is symmetrically fixedly connected to the PTFE sleeve (2). A sliding groove is provided on the connecting seat (3). An L-shaped limiting plate (301) is slidably connected in the sliding groove. One end of the L-shaped limiting plate (301) near the outer wall of the PTFE sleeve (2) is engaged with the lower surface of the upper end of the glass-lined equipment pipe opening (1). A tension spring (302) is disposed between the L-shaped limiting plate (301) and the connecting seat (3). One end of the tension spring (302) is fixedly connected to the L-shaped limiting plate (301), and the other end is fixedly connected to the connecting seat (3).

2. The enamel protection device for the sealing surface of a glass-lined pipe flange according to claim 1, characterized in that, A locking block (304) corresponding to the L-shaped limiting plate (301) is fixedly installed on the lower surface of the upper end of the glass-lined equipment pipe (1). A limiting groove (305) is opened on the locking block (304). The end of the L-shaped limiting plate (301) near the outer wall of the PTFE sleeve (2) is inserted into the limiting groove (305).

3. The enamel protection device for the sealing surface of a glass-lined pipe flange according to claim 1, characterized in that, A sealing gasket (201) is fixedly installed on the lower surface of the upper end of the glass-lined equipment pipe (1). The sealing gasket (201) is L-shaped and covers the upper surface and outer facade of the upper end of the glass-lined equipment pipe (1).

4. The enamel protection device for the sealing surface of a glass-lined pipe flange according to claim 1, characterized in that, It also includes an airbag (202) arranged in a ring shape. The airbag (202) is set on the inner wall of the PTFE sleeve (2). A sealing groove (204) for use with the airbag (202) is opened on the outer wall of the glass-lined equipment port (1). A gas supply pipe (203) connected to the airbag (202) is provided on the PTFE sleeve (2). The gas supply pipe (203) is used to connect an external gas source to deliver gas into the airbag (202).

5. The enamel protection device for the sealing surface of a glass-lined pipe flange according to claim 4, characterized in that, It also includes a valve switch (205), which is disposed on the gas supply pipe (203).

6. The enamel protection device for the sealing surface of a glass-lined pipe flange according to claim 1, characterized in that, It also includes a pull ring (303), which is fixedly connected to one end of the L-shaped limiting plate (301) away from the outer wall of the PTFE sleeve (2).

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