Fixing device for connecting high-temperature pipeline in narrow space

Abstract

The invention relates to a fixing device for connecting a high-temperature pipeline in a narrow space, which comprises a first flange, a second flange and a fixing piece, the fixing piece comprises a plurality of clamping blocks, the plurality of clamping blocks are connected through connecting pieces, one side of each clamping block is provided with a clamping groove, and the inner surface of each clamping groove can be attached to the outer surface of the first flange and the outer surface of the second flange. When the high-temperature pipeline needs to be replaced, the overlapped side edges of the first flange and the second flange are clamped into the clamping grooves in the clamping blocks to fix the connection between the high-temperature pipeline and equipment or between the high-temperature pipelines, so that the connection of the high-temperature pipelines can be quickly disassembled and assembled in a narrow space, and welding is not needed.

Description

Technical Field

[0001] The invention relates to the technical field of high-temperature pipeline fixing, and in particular to a fixing device for connecting high-temperature pipelines in a narrow space. Background Art

[0002] In chemical industries such as chemical plants, power plants and refineries, the production process includes many large equipment, and different equipment are connected by pipelines, which are used to transport intermediate products of the production process. Various high-temperature gases and intermediate products will be generated in the production process, and it is necessary to design a high-temperature operation system. The high-temperature operation system includes various equipment. These equipment are arranged in a limited space and connected by various high-temperature pipelines. They are channels for various gases and fluids, and have high sealing requirements. If there is an abnormality in the equipment in the high-temperature operation system during operation, the equipment or high-temperature pipeline needs to be checked or replaced. However, the space of some existing high-temperature pipelines is small, and there is insufficient welding space between high-temperature pipelines or when connecting high-temperature pipelines to equipment. It is difficult to connect through conventional flanges, and it is impossible to disassemble and assemble quickly. Summary of the invention

[0003] The purpose of the present invention is to design a fixing device for connecting high-temperature pipelines in a narrow space, which can realize the rapid disassembly and assembly of the connection between the high-temperature pipeline and equipment or between high-temperature pipelines in a narrow space, so as to solve the problems raised by the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a fixing device for connecting high-temperature pipelines in a narrow space is provided, comprising a first flange, a second flange and a fixing member, wherein the fixing member comprises a plurality of clamping blocks, and the plurality of clamping blocks are connected by a connecting member, and a clamping groove is provided on one side of the clamping block, and the inner surface of the clamping groove can be fitted with the outer surfaces of the first flange and the second flange.

[0005] Furthermore, a first through hole is formed at one end of the clamping block, a second through hole is formed at the first flange and the second flange, and the clamping block, the first flange and the second flange are connected by a pin passing through the first through hole and the second through hole.

[0006] Furthermore, a through hole is opened at one end of the clamping block, and the connecting member includes a bolt and two nuts. The bolt passes through the through holes of two adjacent clamping blocks to connect with the two adjacent clamping blocks, and the two nuts are respectively threadedly connected to the bolt.

[0007] Furthermore, anti-loosening washers are provided at both ends of the bolt.

[0008] Furthermore, a boss is provided on the lower surface of the first flange, and a groove is provided on the upper surface of the second flange, and the boss cooperates with the groove.

[0009] Furthermore, a sealing gasket is provided in the groove.

[0010] Furthermore, the sealing gasket is a high temperature resistant gasket.

[0011] Furthermore, the card block is a high temperature resistant card block.

[0012] Furthermore, the cross section of the clamping block is irregular, and the inner side of the clamping block is arc-shaped, which cooperates with the first flange and the second flange.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a fixing piece, and when the high-temperature pipeline needs to be replaced, the side edges of the first flange and the second flange after being superimposed are snapped into the slots on the clamping block to fix the connection between the high-temperature pipeline and the equipment or between the high-temperature pipelines. In this way, the connection of the high-temperature pipeline can be quickly disassembled and assembled in a small space without welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0017] Among them: 1. first flange; 2. second flange; 3. clamping block; 4. pin shaft; 5. first through hole; 6. bolt; 7. nut; 8. anti-loosening gasket; 9. boss; 10. groove; 11. sealing gasket. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0019] Example: Refer to Figure 1-2A fixing device for connecting a high-temperature pipeline in a narrow space comprises a first flange 1, a second flange 2 and a fixing part. A boss 9 is provided on the lower surface of the first flange 1, a groove 10 is provided on the upper surface of the second flange 2, the boss 9 cooperates with the groove 10, a sealing gasket 11 is provided in the groove 10, and the first flange 1 and the second flange 2 use a tongue-and-groove surface structure to fix the sealing gasket 11, with accurate positioning and reliable connection. The sealing gasket 11 is a high-temperature resistant gasket, which plays a sealing role after compression to ensure the sealing of the connection between the high-temperature pipeline and the equipment or between the high-temperature pipelines. The fixing part comprises a plurality of clamping blocks 3, which are high-temperature resistant clamping blocks 3. The plurality of clamping blocks 3 are connected by a connecting piece, a clamping groove is provided on one side of the clamping block 3, and the inner surface of the clamping groove can be fitted with the outer surface of the first flange 1 and the second flange 2. The high-temperature resistant clamping block 3 with a clamping groove is used to fit the outer contour of the first flange 1 and the second flange 2 in a whole circle, and the sealing effect is good. The cross section of the block 3 is irregular, and the inner side of the block 3 is arc-shaped, which cooperates with the first flange 1 and the second flange 2; a first through hole 5 is provided at one end of the block 3, and a second through hole is provided at the first flange 1 and the second flange 2; the block 3, the first flange 1 and the second flange 2 are connected by a pin 4 through the first through hole 5 and the second through hole, and the pin 4 is used to connect each block 3 into a chain shape, and a small space can also be connected. A through hole is provided at one end of the block 3, and the connecting piece includes a bolt 6 and two nuts 7, both of which are made of high-temperature resistant materials. The bolt 6 passes through the through holes of two adjacent blocks 3 and is connected to the two adjacent blocks 3, and the two nuts 7 are respectively threadedly connected with the bolt 6; the nut 7 is constrained in the length direction and connected as a whole; the bolt 6 is a full thread structure, which can play a role of quick connection; the chain-shaped block 3 is connected by bolts 6 and nuts 7, fixed at one place, and connected in a whole circle, which can realize quick installation and quick removal; different numbers of blocks 3 can be used for pipes of different specifications, and the application range is wide. Anti-loosening washers 8 are provided at both ends of the bolt 6. The anti-loosening gasket 8 is mainly used to prevent the nut 7 from loosening during high-temperature operation. To ensure the sealing performance during long-term high-temperature operation; the block 3 is connected together by bolts 6 and nuts 7, fixed in one place, and connected in a whole circle, so that the connection can be achieved even in a small space. The anti-loosening gasket 8 is used to prevent the nut 7 on the bolt 6 from loosening. When the high-temperature pipeline needs to be replaced, the side of the first flange 1 and the second flange 2 after being superimposed is inserted into the slot on the block 3 to fix the connection between the high-temperature pipeline and the equipment or the high-temperature pipeline. In this way, the connection of the high-temperature pipeline can be quickly disassembled and assembled in a small space without welding.

[0020] The working principle of this embodiment is as follows: when in use, a certain number of blocks 3 are selected according to the diameter of the high-temperature pipeline, and the pins 4 are used to connect the blocks 3 into a chain shape. The sides of the first flange 1 and the second flange 2 after being superimposed are inserted into the slots on the blocks 3. Bolts 6 and nuts 7 connect multiple blocks 3 together to fix the connection between the high-temperature pipeline and the equipment or between the high-temperature pipelines, so that the connection of the high-temperature pipeline can be quickly disassembled and assembled in a narrow space.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0022] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fixing device for connecting high-temperature pipelines in a narrow space, characterized in that: The invention comprises a first flange (1), a second flange (2) and a fixing member, wherein the fixing member comprises a plurality of clamping blocks (3), the plurality of clamping blocks (3) are connected via a connecting member, a clamping groove is provided on one side of the clamping block (3), and the inner surface of the clamping groove is in contact with the outer surface of the first flange (1) and the second flange (2).

2. The fixing device for connecting high-temperature pipelines in a narrow space according to claim 1, characterized in that: A first through hole (5) is formed at one end of the clamping block (3), and a second through hole is formed at the first flange (1) and the second flange (2). The clamping block (3), the first flange (1) and the second flange (2) are connected via a pin shaft (4) passing through the first through hole (5) and the second through hole.

3. The fixing device for connecting high-temperature pipelines in a narrow space according to claim 1, characterized in that: A through hole is formed at one end of the clamping block (3); the connecting member comprises a bolt (6) and two nuts (7); the bolt (6) passes through the through holes of two adjacent clamping blocks (3) to be connected to the two adjacent clamping blocks (3); and the two nuts (7) are respectively threadedly connected to the bolt (6).

4. The fixing device for connecting high-temperature pipelines in a narrow space according to claim 3 is characterized in that: Anti-loosening washers (8) are provided at both ends of the bolt (6).

5. The fixing device for connecting high-temperature pipelines in a narrow space according to claim 1, characterized in that: The lower surface of the first flange (1) is provided with a boss (9), and the upper surface of the second flange (2) is provided with a groove (10), and the boss (9) cooperates with the groove (10).

6. The fixing device for connecting high-temperature pipelines in a narrow space according to claim 5, characterized in that: A sealing gasket (11) is arranged in the groove (10).

7. The fixing device for connecting high-temperature pipelines in a narrow space according to claim 6, characterized in that: The sealing gasket (11) is a high temperature resistant gasket.

8. The fixing device for connecting high-temperature pipelines in a narrow space according to claim 1, characterized in that: The card block (3) is a high temperature resistant card block (3).

9. The fixing device for connecting high-temperature pipelines in a narrow space according to claim 1, characterized in that: The cross section of the clamping block (3) is irregular, and the inner side of the clamping block (3) is arc-shaped, and cooperates with the first flange (1) and the second flange (2).

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