A sealing mechanism with long service life

Abstract

The present invention discloses a sealing mechanism with a long service life, comprising a supporting tube sheet and a pipeline, wherein a sealing tube sheet is arranged at the bottom end of the supporting tube sheet, a clamping flange is arranged at the bottom end of the sealing tube sheet, the pipeline passes through the clamping flange, the sealing tube sheet and the supporting tube sheet, a first mounting groove is provided on the top end surface and the bottom end surface of the sealing tube sheet, a pipe sleeve is provided inside the first mounting groove, a first connecting groove is provided on the top end surface of the pipe sleeve, a second mounting groove is provided on the bottom end surface of the supporting tube sheet and the top end surface of the clamping flange, the first mounting groove and the second mounting groove are both located outside the pipeline, a sealing mechanism and a partition block are respectively provided inside the second mounting groove, a second connecting groove and a fixing groove are respectively provided on the top end surface and the bottom end surface of the partition block; by respectively providing fixing grooves on the top end and the bottom end of the partition block, it is convenient for staff to install the sealing mechanism and the partition block.

Description

Technical Field

[0001] The invention belongs to the technical field of sealing mechanisms, and in particular relates to a sealing mechanism with a long service life. Background Art

[0002] Wastewater discharged from sulfuric acid drying, chemical, steel and other industries contains a large amount of waste sulfuric acid. At present, the recycling and reuse of waste sulfuric acid mainly relies on the concentration method to increase the mass fraction of waste sulfuric acid, and remove other impurities to become pure concentrated sulfuric acid for reuse. Under the process requirements of the concentration method, the waste sulfuric acid concentrated acid heat exchanger needs to withstand very high thermometer pressure tests. Under corrosion resistance and high temperature conditions, silicon carbide material as a tube material reflects advantages that are different from traditional graphite pipes and metal pipes. The selection of the tube sheet material of the heat exchanger and the sealing form of the heat exchange tube and the tube sheet have become important control nodes for the stable operation and long life of the equipment. The existing sealing mechanism requires the three-layer sealing mechanism to be placed in the second installation groove in turn, and then the partition block is placed between the sealing mechanisms. The operation is cumbersome and it brings inconvenience to the staff to seal the tube sheet. For this reason, we propose a sealing mechanism with a long service life. Summary of the invention

[0003] The purpose of the present invention is to provide a sealing mechanism with a long service life to solve the problem in the above background technology that the existing sealing mechanism needs to sequentially place three layers of sealing mechanisms into the second installation groove and then place partition blocks between the sealing mechanisms, which is cumbersome to operate and brings inconvenience to the staff in sealing the tube plate.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sealing mechanism with a long service life, comprising a supporting tube sheet and a pipeline, a sealing tube sheet is arranged at the bottom end of the supporting tube sheet, a clamping flange is arranged at the bottom end of the sealing tube sheet, the pipeline passes through the clamping flange, the sealing tube sheet and the supporting tube sheet, a first mounting groove is provided on the top surface and the bottom surface of the sealing tube sheet, a pipe sleeve is arranged inside the first mounting groove, a first connecting groove is provided on the top surface of the pipe sleeve, a second mounting groove is provided on the bottom surface of the supporting tube sheet and the top surface of the clamping flange, the first mounting groove and the second mounting groove are both located outside the pipeline, a sealing mechanism and a partition block are respectively arranged inside the second mounting groove, a second connecting groove and a fixing groove are respectively provided on the top surface and the bottom surface of the partition block, the fixing groove and the second connecting groove are connected to each other, a limiting ring is provided on the inner wall of the fixing groove, a connector is provided on the top end of the sealing mechanism, a limiting groove is provided on the outside of the connector, the connector is located inside the fixing groove, and the limiting ring is located inside the limiting groove.

[0005] Preferably, the supporting tube sheet, the sealing tube sheet and the clamping flange are fixedly connected by threaded rods and nuts, and the pipe sleeve is fixedly connected to the pipeline by a first mounting groove.

[0006] Preferably, the sealing mechanism is fixedly connected to the connecting head, and the outer side of the bottom end of the connecting head is a slope.

[0007] Preferably, the limiting ring is fixedly connected to the spacer block via a fixing groove, and the connecting head is fixedly connected to the limiting ring via a limiting groove.

[0008] Preferably, the supporting tube sheet is fixedly connected to the pipeline, and the cross section of the limiting groove is an arc surface.

[0009] Preferably, the top end of the sealing mechanism is sealed and connected to the partition block through the second connecting groove, and the bottom end of the sealing mechanism is sealed and connected to the pipe sleeve through the first connecting groove.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] (1) By opening fixed grooves at the top and bottom of the partition block, when the sealing mechanism and the partition block need to be placed in the second installation groove, the assembled sealing mechanism and the partition block are directly placed in the second installation groove, the partition block is moved, the sealing mechanism is driven by the partition block to move, and the sealing mechanism is aligned with the second installation groove. When the sealing mechanism and the partition block are completely inserted into the second installation groove, the operation is completed, which is convenient for the staff to install the sealing mechanism and the partition block. The supporting tube sheet and the sealing tube sheet are made of polytetrafluoroethylene material, which has the characteristics of low cost, corrosion resistance and long service life, and is more convenient for enterprises to control costs.

[0012] (2) By opening a first connecting groove at the top of the pipe sleeve, the contact area between the pipe sleeve and the sealing mechanism is increased, thereby improving the sealing of the connection between the pipe sleeve and the sealing mechanism. By opening a second connecting groove on the top surface and the bottom surface of the partition block, the contact area between the sealing mechanism and the partition block is increased under the action of the second connecting groove, thereby improving the sealing of the connection between the sealing mechanism and the partition block, and further improving the sealing of the connection between the sealing tube sheet and the supporting tube sheet and the sealing tube sheet and the clamping flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic cross-sectional structural diagram of the sealing mechanism of the present invention;

[0014] Figure 2 for Figure 1 The enlarged structural diagram at a in FIG.

[0015] Figure 3 for Figure 2 The enlarged structural diagram at b in FIG.

[0016] In the figure: 1. Support tube sheet; 2. Sealing tube sheet; 3. Clamping flange; 4. Pipe; 5. Pipe sleeve; 6. Sealing mechanism; 7. Separation block; 8. First connecting groove; 9. Second connecting groove; 10. Fixing groove; 11. Connector; 12. Limiting groove; 13. Limiting ring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 3 The present invention provides a technical solution: a sealing mechanism with a long service life, comprising a supporting tube sheet 1 and a pipeline 4, a sealing tube sheet 2 is arranged at the bottom end of the supporting tube sheet 1, a clamping flange 3 is arranged at the bottom end of the sealing tube sheet 2, the pipeline 4 passes through the clamping flange 3, the sealing tube sheet 2 and the supporting tube sheet 1, a first mounting groove is provided on the top surface and the bottom surface of the sealing tube sheet 2, a pipe sleeve 5 is arranged inside the first mounting groove, a first connecting groove 8 is provided on the top surface of the pipe sleeve 5, a second mounting groove is provided on the bottom surface of the supporting tube sheet 1 and the top surface of the clamping flange 3, the first mounting groove and the second mounting groove are both located on the outside of the pipeline 4, a sealing mechanism 6 and a partition block 7 are respectively arranged inside the second mounting groove, a second connecting groove 9 and a fixing groove 10 are respectively provided on the top surface and the bottom surface of the partition block 7, the fixing groove 10 and the second connecting groove 9 are mutually connected, a limiting ring 13 is provided on the inner wall of the fixing groove 10, a connector 11 is provided on the top end of the sealing mechanism 6, a limiting groove 12 is provided on the outer side of the connector 11, and the connector 11 is located in the fixing groove 10 Internally, the limiting ring 13 is located inside the limiting groove 12 .

[0019] In order to facilitate fixing of the pipe sleeve 5, in this embodiment, preferably, the supporting tube sheet 1, the sealing tube sheet 2 and the clamping flange 3 are fixedly connected by threaded rods and nuts, and the pipe sleeve 5 is fixedly connected to the pipeline 4 through the first mounting groove.

[0020] In order to facilitate the installation of the connector 11, in this embodiment, preferably, the sealing mechanism 6 is fixedly connected to the connector 11, and the outer side of the bottom end of the connector 11 is an inclined surface.

[0021] In order to facilitate the assembly of the sealing mechanism 6 and the spacer block 7 , in this embodiment, preferably, the limit ring 13 is fixedly connected to the spacer block 7 through the fixing groove 10 , and the connector 11 is fixedly connected to the limit ring 13 through the limiting groove 12 .

[0022] In order to facilitate the fixing of the support tube sheet 1, in this embodiment, preferably, the support tube sheet 1 is fixedly connected to the pipeline 4, and the cross section of the limiting groove 12 is an arc surface.

[0023] In order to improve the sealing performance of the connection between the supporting tube sheet 1 and the sealing tube sheet 2 , in this embodiment, preferably, the top end of the sealing mechanism 6 is sealedly connected to the partition block 7 through the second connecting groove 9 , and the bottom end of the sealing mechanism 6 is sealedly connected to the pipe sleeve 5 through the first connecting groove 8 .

[0024] The working principle and use process of the present invention: After the device is completed, by opening fixed grooves 10 at the top and bottom of the partition block 7, when it is necessary to put the sealing mechanism 6 and the partition block 7 into the second installation groove, directly put the assembled sealing mechanism 6 and the partition block 7 into the second installation groove, move the partition block 7, drive the sealing mechanism 6 to move by the partition block 7, and align the sealing mechanism 6 with the second installation groove. When the sealing mechanism 6 and the partition block 7 completely enter the second installation groove, the operation is completed, which is convenient for the staff to install the sealing mechanism 6 and the partition block 7. The supporting tube sheet 1 and the sealing tube sheet 2 are made of polytetrafluoroethylene material and have a formed The characteristics of low cost, corrosion resistance and long service life make it easier for enterprises to control costs. By opening a first connecting groove 8 at the top of the pipe sleeve 5, the contact area between the pipe sleeve 5 and the sealing mechanism 6 is increased, thereby improving the sealing of the connection between the pipe sleeve 5 and the sealing mechanism 6. By opening a second connecting groove 9 on the top surface and the bottom surface of the dividing block 7, respectively, under the action of the second connecting groove 9, the contact area between the sealing mechanism 6 and the dividing block 7 is increased, thereby improving the sealing of the connection between the sealing mechanism 6 and the dividing block 7, and then respectively improving the sealing of the connection between the sealing tube sheet 2 and the supporting tube sheet 1 and the sealing of the sealing tube sheet 2 and the clamping flange 3.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing mechanism with a long service life, comprising a supporting tube sheet (1) and a pipeline (4), characterized in that: The bottom end of the supporting tube sheet (1) is provided with a sealing tube sheet (2), the bottom end of the sealing tube sheet (2) is provided with a clamping flange (3), the pipeline (4) passes through the clamping flange (3), the sealing tube sheet (2) and the supporting tube sheet (1), the top end surface and the bottom end surface of the sealing tube sheet (2) are both provided with a first mounting groove, a pipe sleeve (5) is provided inside the first mounting groove, the top end surface of the pipe sleeve (5) is provided with a first connecting groove (8), the bottom end surface of the supporting tube sheet (1) and the top end surface of the clamping flange (3) are provided with a second mounting groove, the first mounting groove and the second mounting groove are both located outside the pipeline (4), the second mounting groove is respectively provided with a sealing mechanism (6) and a partition block (7), the top end surface and the bottom end surface of the partition block (7) are respectively provided with a second connecting groove (9) and a fixing groove (10), the fixing groove (10) ) and the second connecting groove (9) are interconnected, a limiting ring (13) is provided on the inner wall of the fixing groove (10), a connecting head (11) is provided on the top end of the sealing mechanism (6), the sealing mechanism (6) is fixedly connected to the connecting head (11), and the outer side of the bottom end of the connecting head (11) is an inclined surface; a limiting groove (12) is provided on the outer side of the connecting head (11), the connecting head (11) is located inside the fixing groove (10), and the limiting ring (13) is located inside the limiting groove (12); the limiting ring (13) is fixedly connected to the spacer block (7) through the fixing groove (10), and the connecting head (11) is fixedly connected to the limiting ring (13) through the limiting groove (12); the top end of the sealing mechanism (6) is sealedly connected to the spacer block (7) through the second connecting groove (9), and the bottom end of the sealing mechanism (6) is sealedly connected to the pipe sleeve (5) through the first connecting groove (8).

2. A sealing mechanism with a long service life according to claim 1, characterized in that: The supporting tube sheet (1), the sealing tube sheet (2) and the clamping flange (3) are fixedly connected via threaded rods and nuts, and the pipe sleeve (5) is fixedly connected to the pipeline (4) via a first mounting groove.

3. A sealing mechanism with a long service life according to claim 1, characterized in that: The supporting tube plate (1) is fixedly connected to the pipeline (4), and the cross section of the limiting groove (12) is an arc surface.

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