Repair sleeve for glass lining equipment
By designing a repair sleeve composed of Hastelloy bushings and other components, the problem of easy damage to the bottom discharge port of enamel equipment was solved, enabling rapid repair, ensuring normal equipment operation, and reducing economic losses and the risk of production stoppage.
Patent Information
- Application Number
- CN202423205420.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The bottom discharge port of existing enamel equipment is prone to damage, leading to equipment failure, affecting production efficiency and causing economic losses. A rapid repair solution is needed.
Design a repair kit consisting of Hastelloy bushings, PTFE gaskets, sealing flanges, stainless steel bolts and nuts, etc., to quickly repair damaged discharge ports of glass-lined equipment and ensure normal operation of the equipment.
It enables rapid repair, avoids production stoppages and major overhauls, ensures production efficiency, reduces economic losses, has a simple structure, is easy to install, has low cost, and does not affect the normal use of equipment.
Smart Images

Figure CN223483777U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of glass-lined repair sleeves, specifically relating to a repair sleeve for glass-lined equipment. Background Technology
[0002] Enameled equipment is an industrial device made by coating a metal surface with a high-silicon enamel and firing it at 950℃ to ensure the enamel adheres tightly to the metal substrate. This equipment combines the chemical stability of glass with the strength of metal, exhibiting excellent corrosion resistance. Enameled equipment is widely used in industrial production and scientific research in chemical, pharmaceutical, dye, pesticide, organic synthesis, petroleum, food manufacturing, and defense industries for processes such as reaction, evaporation, concentration, synthesis, extraction, polymerization, saponification, mineralization, chlorination, and nitration, replacing expensive stainless steel and non-ferrous metals.
[0003] In the actual use of existing enamel-lined equipment, the bottom discharge port is often the first area where the enamel layer breaks. This is mostly due to frequent opening of the discharge valve, causing material to scour the pipe opening, or the presence of particulate material that accumulates and wears down the bottom enamel layer. If left untreated, localized damage to the enamel layer at the bottom discharge port during the service life of the equipment can lead to the destruction of the entire machine and significant economic losses. Therefore, how to quickly repair the bottom discharge port to ensure production and the normal operation of the enamel-lined equipment is a primary issue that enamel-lined equipment manufacturers and users must address. Thus, we need to upgrade and modify existing technologies. Utility Model Content
[0004] The purpose of this utility model is to provide a repair sleeve for enamel-lined equipment to solve the problems mentioned in the background art.
[0005] To solve the above problems, the following technical solutions are provided:
[0006] A repair kit for enamel-lined equipment is designed, comprising a device body, the device body containing a Hastelloy bushing, a PTFE gasket below the Hastelloy bushing, and a damaged enamel-lined discharge port outside the Hastelloy bushing. A sealing flange is located on the lower left side of the damaged enamel-lined discharge port, and a bolt and nut are located on the right side of the damaged enamel-lined discharge port. A threaded clamping flange is located below the sealing flange, and a stainless steel bolt is located below the threaded clamping flange. A sealing assembly is located below the bolt and nut, and an enamel-lined discharge valve is located below the sealing assembly.
[0007] Furthermore, a stainless steel nut is installed on the stainless steel bolt, and the stainless steel bolt and the stainless steel nut are threaded together.
[0008] Furthermore, both the stainless steel bolts and stainless steel nuts are made of austenitic material.
[0009] Furthermore, a sealing groove is provided inside the lower part of the Hastelloy bushing.
[0010] Furthermore, the sealing assembly includes a positioning groove, which has an annular groove shape.
[0011] Furthermore, the sealing assembly contains a plurality of sealing gaskets.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] 1. This utility model, by setting up Hastelloy bushings, stainless steel bolts, stainless steel nuts, threaded clamping flanges, sealing flanges, PTFE gaskets, bolts and nuts, and sealing components, can quickly repair the discharge port of damaged enamel-lined equipment, avoiding production stoppages for major overhauls, ensuring factory production efficiency, and ensuring the normal operation of enamel-lined equipment during its service life before major overhauls. This repair kit is low in cost, simple in structure, easy to install, and does not affect the normal use function of the equipment after repair.
[0014] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description
[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0016] Figure 1 This is a perspective view of the overall structure of a repair sleeve for enamel-lined equipment according to the present invention;
[0017] Figure 2 This is a perspective view of a repair sleeve for an enameled equipment according to the present invention.
[0018] Figure 3 This is a top view of a threaded clamping flange structure for a repair sleeve for glass-lined equipment according to this utility model;
[0019] Figure 4 This is a top view of the sealing flange structure of a repair sleeve for glass-lined equipment according to the present invention.
[0020] In the figure: 1. Device body; 2. Hastelloy bushing; 3. Stainless steel bolt; 4. Stainless steel nut; 5. Threaded clamping flange; 6. Sealing flange; 7. PTFE gasket; 71. Sealing gasket groove; 8. Bolt and nut; 9. Sealing assembly; 91. Positioning groove; 10. Enameled glass discharge valve; 11. Damaged enamel-lined discharge port. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] like Figure 1 - Figure 4 As shown, this embodiment provides a repair kit for glass-lined equipment, including a device body 1. The device body 1 contains a Hastelloy bushing 2. A PTFE gasket 7 is provided below the Hastelloy bushing 2, and a damaged glass-lined discharge port 11 is provided outside the Hastelloy bushing 2. A sealing flange 6 is provided on the lower left side of the damaged glass-lined discharge port 11, and a bolt and nut 8 is provided on the right side of the damaged glass-lined discharge port 11. A threaded clamping flange 5 is provided below the sealing flange 6, and a stainless steel bolt 3 is provided below the threaded clamping flange 5. A sealing component 9 is provided below the bolt and nut 8, and a glass-lined discharge valve 10 is provided below the sealing component 9.
[0023] Preferably, a stainless steel nut 4 is installed on the stainless steel bolt 3. The stainless steel bolt 3 and the stainless steel nut 4 are threaded together, which can connect and fix the devices, ensuring the safety of the devices during use and avoiding the trouble of disassembling the devices later. Both the stainless steel bolt 3 and the stainless steel nut 4 are made of austenitic 316 material. By using austenitic 316 material, the service life and working time of the stainless steel bolt 3 and the stainless steel nut 4 can be extended, and the corrosion of the devices can be reduced.
[0024] Preferably, a sealing groove 71 is provided inside the lower part of the Hastelloy bushing 2. By setting the sealing groove 71, it is convenient for users to install and fix the sealing ring, providing convenience for users. The sealing assembly 9 includes a positioning groove 91, which is annular in shape. By setting the positioning groove 91, it is convenient for users to quickly install and position the device, avoiding the trouble of inconvenient installation. Several sealing gaskets are provided in the sealing assembly 9, which increases the sealing performance of the device and ensures the safety of the device during use.
[0025] The working principle and process of this utility model are as follows: When installing the equipment, first empty the materials from the enamel-lined equipment and clean the materials around the damaged enamel discharge port 11. Place the PTFE gasket 7 into the sealing groove of the Hastelloy bushing 2. Insert the Hastelloy bushing 2 into the damaged enamel discharge port 11 from inside the enamel-lined equipment, ensuring that the Hastelloy bushing 2 covers all the damaged enamel surfaces. Install the sealing assembly 9 and sealing flange 6 at the external pipe opening of the enamel-lined equipment. Pre-install the bolts and nuts 8 with the sealing flange 6 and the loose flange at the equipment pipe opening. Screw the threaded clamping flange 5 into the threaded section outside the Hastelloy bushing 2, continuously adjusting the screws. Adjust the length of the feed, adjust the compression of the sealing gaskets in each part to ensure good sealing of each sealing surface, tighten the bolts and nuts 8 to ensure no leakage between the sealing flange 6 and the equipment port, assemble the stainless steel bolts 3 and stainless steel nuts 4, install them on the threaded clamping flange 5 to hold the sealing flange 6, and lock them with stainless steel nuts 4. Finally, install the new glass-lined discharge valve 10 on the Hastelloy bushing 2. The installation of the new, well-sealed discharge port repair kit is then complete. When the equipment needs maintenance, remove the glass-lined discharge valve 10, loosen the fasteners, remove the threaded clamping flange 5 and the sealing flange 6 in sequence, take out the Hastelloy bushing 2 from inside the equipment, and check the condition of the discharge port.
[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.
Claims
1. A repair sleeve for enamel-lined equipment, characterized in that, The device includes a main body (1), which contains a Hastelloy bushing (2). A PTFE gasket (7) is provided below the Hastelloy bushing (2), and a broken glass-lined discharge port (11) is provided outside the Hastelloy bushing (2). A sealing flange (6) is provided below the left side of the broken glass-lined discharge port (11), and a bolt and nut (8) is provided on the right side of the broken glass-lined discharge port (11). A threaded clamping flange (5) is provided below the sealing flange (6), and a stainless steel bolt (3) is provided below the threaded clamping flange (5). A sealing assembly (9) is provided below the bolt and nut (8), and a glass-lined discharge valve (10) is provided below the sealing assembly (9).
2. The repair sleeve for enamel-lined equipment according to claim 1, characterized in that, A stainless steel nut (4) is installed on the stainless steel bolt (3), and the stainless steel bolt (3) and the stainless steel nut (4) are threaded together.
3. A repair sleeve for enamel-lined equipment according to claim 2, characterized in that, The stainless steel bolts (3) and stainless steel nuts (4) are both made of austenitic 316 material.
4. A repair sleeve for enamel-lined equipment according to claim 1, characterized in that, A sealing groove (71) is provided inside the lower part of the Hastelloy bushing (2).
5. A repair sleeve for enamel-lined equipment according to claim 1, characterized in that, The sealing assembly (9) includes a positioning groove (91), which has an annular groove shape.
6. A repair sleeve for enamel-lined equipment according to claim 1, characterized in that, The sealing assembly (9) contains several sealing gaskets.