Novel omega ring sealing protection device

Abstract

The utility model provides a novel omega ring sealing protection device, and belongs to the technical field of omega ring sealing. The novel omega ring sealing protection device comprises a tube box barrel and a tube plate, an equipment flange tube pass is fixedly installed on the side wall of the tube box barrel, an equipment flange shell pass is installed on the side wall of the equipment flange tube pass, a shell pass barrel is installed on the side wall of the equipment flange shell pass, and the tube plate is installed between the equipment flange tube pass and the equipment flange shell pass. The equipment flange tube pass and the equipment flange shell pass are each provided with a first welding ring type sealing piece. According to the utility model, the second omega ring is arranged, so that once the wound gasket of equipment fails in sealing or is not tightly sealed, leaked media leak into the annular storage device of the omega ring through the gaps between the first welding ring type sealing element and the tube plate and between the first omega ring and the second omega ring, and therefore, a large amount of leakage is avoided, and the service life of the equipment is prolonged. And a good protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of omega ring sealing, in particular to a novel omega ring sealing protection device. Background Art

[0002] Heat exchangers are widely used process equipment in chemical and petrochemical production facilities. They are compact and highly adaptable, especially in large-scale facilities and high-temperature and high-pressure working conditions. However, they are prone to leakage due to medium corrosion, poor gasket sealing, and insufficient preload between equipment flange and tube sheet during long-term use.

[0003] Therefore, the leakage problem of the heat exchanger directly affects the use of the equipment and the safe and reliable operation of the entire system. However, after the gasket seal fails, it cannot be sealed and protected, thereby failing to solve the various problems caused by the leakage of the heat exchanger. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a novel omega ring sealing protection device which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a novel omega ring sealing protection device, comprising a pipe box cylinder, a tube sheet and an equipment flange pipe side, wherein the side wall of the pipe box cylinder is fixedly installed with the equipment flange pipe side, the side wall of the equipment flange pipe side is installed with the equipment flange shell side, the side wall of the equipment flange shell side is installed with the shell side cylinder, a tube sheet is installed between the equipment flange pipe side and the equipment flange shell side, first welding ring type sealing components are respectively installed on the equipment flange pipe side and the equipment flange shell side, and first omega rings are respectively installed on two of the first welding ring type sealing components.

[0007] In a preferred solution, a stud is connected between the equipment flange pipe side and the equipment flange shell side, and nuts are threadedly connected at both ends of the stud.

[0008] In a preferred solution, the first welding ring seal is connected to the equipment flange pipe side and the equipment flange shell side by welding.

[0009] In a preferred solution, the first omega ring is connected to the first welding ring seal by welding.

[0010] In a preferred solution, a second omega ring is symmetrically welded on the surface of the tube sheet.

[0011] In a preferred solution, a second welding ring seal is welded between the two second omega rings.

[0012] In a preferred solution, a wound gasket is installed between the tube sheet and the equipment flange tube side and the equipment flange shell side respectively.

[0013] The utility model provides a novel omega ring sealing protection device, and its beneficial effects include:

[0014] 1. By setting the second omega ring, once the sealing of the wound gasket of the equipment fails or is not sealed tightly, the leaked medium will leak into the annular storage device of the omega ring through the gap between the first welding ring seal and the tube sheet, and between the first omega ring and the second omega ring, thereby avoiding large-scale leakage and playing a good protective role.

[0015] 2. The combination of the spiral wound pad and the omega ring seal is equivalent to double protection, and the sealing effect is more reliable. After the gasket seal fails, the omega ring seal structure becomes the second line of defense, ensuring that the equipment can continue to operate, reducing the frequency of maintenance, and avoiding large losses caused by equipment shutdown and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the main cross-sectional structure provided by an embodiment of the utility model;

[0018] Figure 2 The utility model embodiment provides Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 The utility model embodiment provides Figure 2 Enlarged view of point B in the middle;

[0020] In the figure: 1. pipe box cylinder; 2. equipment flange pipe side; 3. first welding ring seal; 4. first omega ring; 5. second omega ring; 6. equipment flange shell side; 7. studs; 8. nuts; 9. shell side cylinder; 11. spiral wound gasket; 12. tube sheet; 13. second welding ring seal. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] Reference Figure 1-3 The utility model provides a technical solution: a novel omega ring sealing protection device, comprising a tube box cylinder 1 and a tube sheet 12 and an equipment flange shell side 6, the side wall of the tube box cylinder 1 is welded with an equipment flange pipe side 2, the side wall of the equipment flange pipe side 2 is installed with an equipment flange shell side 6, a stud 7 is connected between the equipment flange pipe side 2 and the equipment flange shell side 6, nuts 8 are threadedly connected at both ends of the stud 7, which are used to fix the equipment flange pipe side 2 and the equipment flange shell side 6, a shell side cylinder 9 is welded on the side wall of the equipment flange shell side 6, a tube sheet 12 is installed between the equipment flange pipe side 2 and the equipment flange shell side 6, and the installation method between the two is to achieve sealing by pressing together with the stud 7 and the gasket.

[0024] Reference Figure 1-3 In a preferred embodiment, a first welding ring seal 3 is respectively installed on the equipment flange pipe side 2 and the equipment flange shell side 6, and a first omega ring 4 is respectively installed on the two first welding ring seals 3. The first welding ring seal 3 is welded to the equipment flange pipe side 2 and the equipment flange shell side 6, and the first omega ring 4 is welded to the first welding ring seal 3.

[0025] Reference Figure 1-3 In a preferred embodiment, second omega rings 5 ​​are symmetrically welded on the surface of the tube sheet 12, a second welding ring seal 13 is welded between the two second omega rings 5, and a winding gasket 11 is installed between the tube sheet 12 and the equipment flange pipe side 2 and the equipment flange shell side 6 respectively.

[0026] In a preferred embodiment, when in use, the sealing of the winding gasket 11 fails or is not tight, and the leaked medium leaks into the annular storage device of the omega ring through the gap between the first welding ring seal 3 and the tube sheet 12, and between the first omega ring 4 and the second omega ring 5, thereby avoiding large-scale leakage and playing a good protective role.

[0027] Specifically, the working process or working principle of the novel omega ring sealing protection device is as follows: when in use, the first welding ring seal 3 is welded on the equipment flange pipe side 2 and the equipment flange shell side cladding 6 respectively, and must be pressed with a tooling, and no gap is allowed. The first omega ring 4 is welded at the first welding ring seal 3, and the second omega ring 5 is welded on both sides of the second welding ring seal 13. Pay attention to strictly control the distance from the sealing surface of the tube sheet 12 to the seal to ensure that it is centered. After the assembly gap is adjusted evenly, the positioning welding is uniform and symmetrical spot welding is performed. After completion, the components consisting of the second welding ring seal 13 and the second omega ring 5 are welded to the cladding of the tube sheet 12 , assemble the shell side, tube bundle and pipe box, and assemble them according to the pre-tightening force and tightening torque of the stud 7 recorded in the shell side water pressure test to prevent leakage due to inadequate pre-tightening of the stud 7. At the same time, the flange spacing of the measured equipment must be consistent with the water pressure test data of the pipe side. After the water pressure test is completed, the closing mouth between the first welding ring seal 3 and the second omega ring 5 is finally welded and non-destructively tested. Once the sealing of the winding gasket 11 of the equipment fails or is not sealed tightly, the leaked medium will pass through the gap between the first welding ring seal 3 and the tube sheet 12 and the gap between the first omega ring 4 and the second omega ring 5 to leak into the annular storage device of the omega ring, thereby avoiding large-scale leakage and playing a good protective role.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel omega ring sealing protection device, comprising a tube box barrel (1), a tube sheet (12) and an equipment flange shell (6), characterized in that: A first welding ring type seal (3) is respectively installed on the equipment flange pipe side (2) and the equipment flange shell side (6), and a first omega ring (4) is respectively installed on the two first welding ring type seals (3).

2. A novel omega ring sealing and protection device according to claim 1, characterized in that: The side wall of the tube box cylinder (1) is fixedly mounted with an equipment flange pipe side (2), the side wall of the equipment flange pipe side (2) is mounted with an equipment flange shell side (6), the side wall of the equipment flange shell side (6) is mounted with a shell side cylinder (9), and a tube sheet (12) is mounted between the equipment flange pipe side (2) and the equipment flange shell side (6).

3. A novel omega ring sealing and protection device according to claim 1, characterized in that: A stud (7) is connected between the equipment flange pipe side (2) and the equipment flange shell side (6), and nuts (8) are threadedly connected at both ends of the stud (7).

4. A novel omega ring sealing and protection device according to claim 1, characterized in that: The first welding ring seal (3) is connected to the equipment flange pipe side (2) and the equipment flange shell side (6) by welding.

5. The novel omega ring sealing and protection device according to claim 1 is characterized in that: The first omega ring (4) is connected to the first welding ring seal (3) by welding.

6. A novel omega ring sealing and protection device according to claim 1, characterized in that: A second omega ring (5) is symmetrically welded on the surface of the tube plate (12).

7. A novel omega ring sealing and protection device according to claim 6, characterized in that: A second welding ring seal (13) is welded between the two second omega rings (5).

8. The novel omega ring sealing and protection device according to claim 1 is characterized in that: A wound gasket (11) is installed between the tube sheet (12) and the equipment flange tube side (2) and the equipment flange shell side (6).

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