Integrated single outlet port gasket and machining tooling for machining thereof
By designing an integrated single-outlet gasket and special processing tooling, the problem of the lens gasket's inability to monitor the sealing status in real time in urea production equipment was solved, realizing real-time monitoring of the sealing status and safe and stable operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU HUAHAI SEALING CO LTD
- Filing Date
- 2026-07-03
- Publication Date
- 2026-08-04
AI Technical Summary
The lens gaskets of existing urea production equipment lack outlets, making it impossible to monitor the sealing status in real time. This makes it difficult to detect potential leaks in advance, resulting in insufficient system safety.
An integrated single-outlet gasket was designed, consisting of a lens gasket body and an integrated connection of the lead tube. The lead tube is equipped to monitor the sealing status in real time, and a forced seal is achieved through bolt connection. It is then precisely machined using specialized machining tools.
It enables real-time monitoring of the sealing status, reduces the risk of welding defects and the cost of non-destructive testing, improves the safety and stability of the system, and ensures the safe and stable operation of the equipment.
Smart Images

Figure CN224592891U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gaskets for urea production equipment, specifically an integrated single-outlet gasket and the processing tooling used for its processing. Background Technology
[0002] Lens pads are currently required in urea production equipment, but they do not have outlets, making it impossible to monitor the sealing status in real time and detect potential leaks in advance. Therefore, improvements are needed. Utility Model Content
[0003] The purpose of this invention is to provide an integrated single-outlet gasket to solve the problems mentioned in the background art. It has the advantages of adding an outlet pipe to monitor the sealing status in real time, improving system safety and ensuring the safe and stable operation of the system.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an integrated single-outlet gasket, comprising a lens pad body, an inlet tube integrally connected to the side of the lens pad body, the lens pad body and the inlet tube sharing the same connecting hole, an arc-shaped sealing surface on the side of the lens pad body, a housing on one side of the lens pad body, a sleeve body passing through the middle of the housing, a threaded sleeve on the other side of the lens pad body, the lens pad body positioned between the sleeve body and the threaded sleeve, and a mating flange connected to the housing on the outer side of the threaded sleeve.
[0005] By adopting the above technical solution, the lead tube and the lens pad body are integrated, avoiding leakage problems at the connection between the lead tube and the lens pad body under extreme working conditions. This greatly reduces the risk of welding defects and the cost of non-destructive testing if welding is used. Compared with traditional lens pads, the integrated single lead outlet gasket has an additional lead tube. In actual use, the threaded part of the lead tube is connected to a pressure gauge or pressure instrument valve to detect the pressure in the urea production equipment stripper.
[0006] With its superior high-pressure sealing performance and unique outlet pipe monitoring function, the single-outlet gasket has become an ideal choice for urea production equipment seals. The single outlet pipe can monitor the sealing status in real time, detect potential leaks in advance, improve system safety, and ensure the safe and stable operation of the system.
[0007] As a further embodiment of this utility model: two inclined surfaces are provided at the connection between the lead tube and the lens pad body, and the α angle of the two inclined surfaces is set to 20-40°.
[0008] As a further improvement of this invention, the angle α formed by the two inclined planes is set to 30°.
[0009] As a further improvement of this invention, the outer shell and the mating flange are connected by bolts.
[0010] By adopting the above technical solution, for the lens pad body, the circular sealing surface of the lens pad undergoes plastic deformation after being subjected to the fastening force of the flange cone surface by tightening the bolts, changing from the initial circumferential contact to a sealing ring, which belongs to the principle of forced sealing.
[0011] Another objective of this utility model is to provide a machining fixture for processing an integrated single-outlet gasket, including a positioning fixture and a pressure cap, wherein a screw is inserted through the center of the pressure cap, and a gasket located on one side of the pressure cap is sleeved on the screw.
[0012] By adopting the above technical solution, the lens pad body is placed on the positioning fixture, and then the lens pad body is fixed by the pressure cap and screw. The setting of the gasket reduces the wear of the screw.
[0013] As a further improvement of this utility model, an annular groove is provided on one side of the pressure cap.
[0014] By adopting the above technical solution, the annular groove increases the fit between the pressure cap and the lens pad body.
[0015] As a further improvement of this utility model, the positioning fixture is provided with a threaded groove in the middle.
[0016] By adopting the above technical solution, the screw and the threaded groove are connected by a thread.
[0017] As a further improvement of this utility model, one side of the positioning fixture is provided with a receiving groove for accommodating the lens pad body.
[0018] By adopting the above technical solution, the receiving groove is used to fix the lens pad body.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] The lead tube and lens pad body are integrated, avoiding leakage problems at the connection between the lead tube and lens pad body under extreme working conditions. This greatly reduces the risk of welding defects and the cost of non-destructive testing if welding is used. Compared with traditional lens pads, the integrated single lead outlet gasket has an additional lead tube. In actual use, the threaded part of the lead tube is connected to a pressure gauge or pressure instrument valve to detect the pressure in the urea production equipment stripper.
[0021] With its superior high-pressure sealing performance and unique outlet pipe monitoring function, the single-outlet gasket has become an ideal choice for urea production equipment seals. The single outlet pipe can monitor the sealing status in real time, detect potential leaks in advance, improve system safety, and ensure the safe and stable operation of the system. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of an embodiment;
[0023] Figure 2 This is a schematic diagram of the existing technology;
[0024] Figure 3 A schematic diagram showing the connection relationship between the positioning fixture and the lens pad body;
[0025] Figure 4 This is a structural diagram of the positioning fixture.
[0026] In the diagram: 1. Lens pad body; 2. Lead tube; 3. Connecting hole; 4. Arc sealing surface; 5. Outer shell; 6. Sleeve body; 7. Threaded sleeve; 8. Matching flange; 9. Bevel; 10. Screw; 11. Positioning fixture; 12. Gland; 13. Screw; 14. Gasket; 15. Annular groove; 16. Threaded groove; 17. Receiving groove. Detailed Implementation
[0027] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0028] In this embodiment of the utility model,
[0029] An integrated single-outlet gasket, such as Figures 1-4 As shown, the device includes a lens pad body 1, with a lead tube 2 integrally connected to its side. The lens pad body 1 and the lead tube 2 share a common connecting hole 3. The side of the lens pad body 1 has an arc-shaped sealing surface 4. A housing 5 is located on one side of the lens pad body 1, with a sleeve body 6 passing through the middle of the housing 5. A threaded sleeve 7 is located on the other side of the lens pad body 1, positioned between the sleeve body 6 and the threaded sleeve 7. A mating flange 8, connecting to the housing 5, is located on the outer side of the threaded sleeve 7. One end of the lead tube 2 is threaded.
[0030] Two inclined surfaces 9 are provided at the connection between the guide tube 2 and the lens pad body 1, and the angle α formed by the two inclined surfaces 9 is set to 20-40°.
[0031] Preferably, the angle α formed by the two inclined planes is set to 30°.
[0032] The housing 5 and the mating flange 8 are connected by screws 10.
[0033] A machining fixture for machining an integrated single-outlet gasket includes a positioning fixture 11 and a pressure cap 12. A screw 13 is inserted through the middle of the pressure cap 12, and a gasket 14 is sleeved on one side of the pressure cap 12.
[0034] An annular groove 15 is provided on one side of the pressure cap 12.
[0035] The positioning fixture 11 has a threaded groove 16 in the middle.
[0036] The positioning fixture 11 has a receiving groove 17 on one side for accommodating the lens pad body 1.
[0037] The manufacturing process of the integrated single-outlet gasket is as follows: First, the integrated single-outlet gasket blank (hereinafter referred to as the blank) is fixed on the positioning fixture 11. After the blank is pressed down by the pressure cap 12 of the positioning fixture 11, it is pre-tightened using the screw 13. At the same time, the lead tube 2 part of the blank is aligned. After the position is aligned, the bolt is tightened and the center at the tail of the lathe is fixed. The outer diameter part of the lead tube 2 of the blank is then machined. After the outer diameter part is machined, the center is removed and the through hole part of the lead tube 2 is machined. After this process is completed, the outer diameter is machined by milling. Then, the inner diameter of the blank and the arc sealing parts of both ends are machined on the clamped outer diameter part, and finally the final product of the integrated single-outlet gasket is obtained.
[0038] Working principle
[0039] The lead tube 2 part and the lens pad body 1 part are integrated, avoiding leakage problems at the connection point of the lead tube 2 and the lens pad body 1 under extreme working conditions. This greatly reduces the risk of welding defects and non-destructive testing costs caused by welding. Compared with traditional lens pads, the integrated single lead outlet gasket has an additional lead tube 2 part. In actual use, the threaded part of the lead tube 2 is connected to a pressure gauge or pressure instrument valve to detect the pressure in the urea production equipment stripper.
[0040] With its superior high-pressure sealing performance and unique outlet pipe monitoring function, the single-outlet gasket has become an ideal choice for urea production equipment sealing components. The single outlet pipe 2 can monitor the sealing status in real time, detect potential leakage risks in advance, improve system safety, and ensure the safe and stable operation of the system.
[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An integrated single outlet grommet comprising a lens gasket body (1) characterized by: The lens pad body (1) is integrally connected to the side of the lead tube (2). The lens pad body (1) and the lead tube (2) are provided with the same connecting hole (3). The side of the lens pad body (1) is provided with an arc sealing surface (4). The lens pad body (1) is provided with a shell (5) on one side. The middle of the shell (5) is provided with a sleeve body (6). The other side of the lens pad body (1) is provided with a threaded sleeve (7). The lens pad body (1) is located between the sleeve body (6) and the threaded sleeve (7). The outer side of the threaded sleeve (7) is provided with a mating flange (8) connected to the shell (5).
2. The integrated single-outlet gasket according to claim 1, characterized in that: Two inclined surfaces (9) are provided at the connection between the guide tube (2) and the lens pad body (1), and the angle α formed by the two inclined surfaces (9) is set to 20-40°.
3. The integrated single-outlet gasket according to claim 2, characterized in that: The angle α formed by the two inclined planes (9) is set to 30°.
4. The integrated single-outlet gasket according to claim 1, characterized in that: The outer casing (5) and the mating flange (8) are connected by bolts.
5. A machining fixture for machining an integrated single-outlet gasket as described in any one of claims 1-4, characterized in that: It includes a positioning fixture (11) and a pressure cap (12), with a screw (13) passing through the middle of the pressure cap (12), and a gasket (14) sleeved on one side of the pressure cap (12).
6. The machining fixture for machining an integrated single-outlet gasket according to claim 5, characterized in that: An annular groove (15) is provided on one side of the pressure cap (12).
7. The machining fixture for machining an integrated single-outlet gasket according to claim 6, characterized in that: The positioning fixture (11) has a threaded groove (16) in the middle.
8. The machining fixture for machining an integrated single-outlet gasket according to claim 7, characterized in that: The positioning fixture (11) has a receiving groove (17) on one side for accommodating the lens pad body (1).