High-purity high-cleanliness semiconductor electrolytic polishing stainless steel tube

Abstract

The utility model relates to the technical field of stainless steel pipes, in particular to a high-purity high-cleanliness semiconductor electrolytic polishing stainless steel pipe which comprises a stainless steel pipe body, a reinforcing sleeve is fixedly arranged in the stainless steel pipe body, and an anti-corrosion inner pipe is fixedly arranged in the reinforcing sleeve. Fixing plates are welded to the upper end and the lower end of the stainless steel pipe body correspondingly, connectors are welded to the tops of one set of fixing plates, and gaskets are movably arranged between the connectors and the fixing plates. A mounting groove is formed between the anti-corrosion inner pipe and the reinforcing sleeve, the connector penetrates through the interior of the mounting groove, the interior of the fixing plate is in threaded connection with a fastening screw, a sealing ring is bonded to the exterior of the connector, a reinforcing assembly is fixedly arranged on the exterior of the stainless steel pipe body, and the reinforcing assembly comprises two sets of supporting lantern rings. The stainless steel pipe can be connected through the fixing plate and the auxiliary matched screws, and the sealing performance of the stainless steel pipe is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, in particular to a high-purity and high-cleanliness semiconductor electrolytic polishing stainless steel pipe. Background Art

[0002] High-purity and high-cleanliness semiconductor electrolytically polished stainless steel pipes are also called EP stainless steel pipes. After electrolytic polishing treatment, the surface finish is significantly improved, which can achieve a mirror effect, reduce surface roughness, reduce friction coefficient, and facilitate fluid flow. EP stainless steel pipes can be used in the semiconductor industry to manufacture high-cleanliness equipment and pipelines to prevent particulate contamination.

[0003] Currently, EP stainless steel pipes are used to build pipelines in the semiconductor industry. Generally speaking, EP stainless steel pipes are usually assembled using clamp connections, flange connections, welding and threaded connections, and are connected through external auxiliary accessories such as clamps and flanges. However, clamps have certain limitations and are not suitable for high-pressure and high-temperature environments. Flange connections require flange connections of appropriate sizes to be connected to stainless steel pipes, and inappropriate gaskets will affect the sealing. If welding is used for connection, it is inconvenient to disassemble the stainless steel pipe, and the threaded connection has low reliability.

[0004] Based on this, how to achieve convenient installation of EP stainless steel pipes has become a problem that needs to be solved for EP stainless steel pipes. Summary of the Invention

[0005] The purpose of the utility model is to provide a high-purity and high-cleanliness semiconductor electrolytic polished stainless steel tube, which can be connected through its own fixing plate and auxiliary matching screws to ensure the sealing of the stainless steel tube, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a high-purity and high-cleanliness semiconductor electrolytic polished stainless steel tube, comprising a stainless steel tube body, a reinforcing sleeve fixedly disposed inside the stainless steel tube body, and an anti-corrosion inner tube fixedly disposed inside the reinforcing sleeve, fixing plates welded to the upper and lower ends of the stainless steel tube body, a connector welded to the top of one set of the fixing plates, and a gasket movably disposed between the connector and the fixing plate;

[0007] An installation groove is provided between the anti-corrosion inner tube and the reinforcement sleeve, the connector runs through the interior of the installation groove, the internal thread of the fixing plate is connected with a fastening screw, and a sealing ring is bonded to the outside of the connector.

[0008] Preferably, a reinforcement component is fixedly provided on the outside of the stainless steel pipe body, and the reinforcement component includes two groups of support rings.

[0009] Preferably, a support member is welded between the support collar and the stainless steel pipe body.

[0010] Preferably, reinforcing ribs are provided between the upper and lower groups of support members, and both ends of the reinforcing ribs are respectively fixed to the support members.

[0011] Preferably, the reinforcing ribs are spirally wound along the surface of the stainless steel pipe body, and the reinforcing ribs and the surface of the stainless steel pipe body are in contact with each other.

[0012] Preferably, the gasket is embedded in the surface of the fixing plate, and the gasket is detachably connected to the fixing plate.

[0013] Preferably, the connector is threadedly connected to the anti-corrosion inner tube, and the surface of the anti-corrosion inner tube is provided with external threads, and the inner wall of the connector is provided with internal threads.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The provided connector can be inserted into the installation groove, and the gasket on the fixing plate is squeezed inward, so that the two sets of fixing plates are completely sealed. The anti-corrosion inner tube and the reinforced sleeve are sealed with the sealing ring, which can ensure the sealing of the stainless steel pipe body. In addition, the two sets of stainless steel pipe bodies can be reliably installed without the need for additional flanges and other accessories;

[0016] 2. The stainless steel pipe body can be strengthened as a whole by providing a reinforcing sleeve and a reinforcement component on the outside of the stainless steel pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is the overall structural view of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the fixed plate of the present invention when connected;

[0020] Figure 3 This is a schematic diagram of a half-section structure of the stainless steel pipe body of the present utility model;

[0021] Figure 4 For the utility model Figure 3 A magnified view of center.

[0022] Description of reference numerals:

[0023] 1. Stainless steel pipe body; 2. Fixing plate; 3. Gasket; 4. Reinforcement assembly; 401. Support member; 402. Reinforcement rib; 403. Support collar; 5. Connector; 6. Sealing ring; 7. Anti-corrosion inner tube; 8. Fastening screws; 9. Reinforcement sleeve; 10. Mounting groove. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] The utility model provides a technical solution:

[0026] See also Figures 1 to 4 A high-purity and high-cleanliness semiconductor electrolytic polishing stainless steel tube includes a stainless steel tube body 1, a reinforcing sleeve 9 is fixedly provided inside the stainless steel tube body 1, and an anti-corrosion inner tube 7 is fixedly provided inside the reinforcing sleeve 9, and the upper and lower ends of the stainless steel tube body 1 are welded with fixing plates 2, and a connector 5 is welded to the top of one set of the fixing plates 2, and a gasket 3 is movably provided between the connector 5 and the fixing plate 2;

[0027] An installation groove 10 is provided between the anti-corrosion inner tube 7 and the reinforcing sleeve 9, the connecting head 5 passes through the inside of the installation groove 10, the internal thread of the fixing plate 2 is connected with a fastening screw 8, the outside of the connecting head 5 is bonded with a sealing ring 6 and a gasket 3 is embedded in the surface of the fixing plate 2, and the gasket 3 is detachably connected to the fixing plate 2, the connecting head 5 is threadedly connected to the anti-corrosion inner tube 7, and the surface of the anti-corrosion inner tube 7 is provided with an external thread, and the inner wall of the connecting head 5 is provided with an internal thread.

[0028] By adopting the above technical solution, when two groups of stainless steel pipe bodies 1 are connected, the connecting head 5 is rotated to connect the connecting head 5 with the anti-corrosion inner pipe 7. At this time, the connecting head 5 is inserted into the installation groove 10, so that the fixing plates 2 on the two groups of stainless steel pipe bodies 1 fit each other, and the gaskets 3 on the fixing plates 2 are squeezed inward, so that the two groups of fixing plates 2 are completely sealed, thereby installing the fastening screws 8 on the fixing plates 2 to achieve the connection of the stainless steel pipe bodies 1. Since the connection gap between the connecting head 5 and the anti-corrosion inner pipe 7 is misaligned with the connection gap between the two groups of fixing plates 2, leakage of the stainless steel pipe bodies 1 can be further avoided. At the same time, the sealing ring 6 on the connecting head 5 seals the anti-corrosion inner pipe 7 with the reinforcing sleeve 9, which can ensure the sealing of the stainless steel pipe body 1, and the reinforcing sleeve 9 in the stainless steel pipe body 1 strengthens the stainless steel pipe body 1 as a whole.

[0029] Specifically, such as Figure 1 As shown, a reinforcement component 4 is fixedly provided on the outside of the stainless steel pipe body 1, and the reinforcement component 4 includes two groups of support rings 403, and a support member 401 is welded between the support ring 403 and the stainless steel pipe body 1. A reinforcing rib 402 is provided between the upper and lower groups of support members 401, and the two ends of the reinforcing rib 402 are respectively fixed to the support member 401. The reinforcing rib 402 is spirally wound along the surface of the stainless steel pipe body 1, and the reinforcing rib 402 and the surface of the stainless steel pipe body 1 are in contact with each other.

[0030] By adopting the above technical solution, a reinforcement component 4 is set on the outside of the stainless steel pipe body 1. Through the support member 401 and the reinforcing ribs 402 wrapped around the outside of the stainless steel pipe body 1, used in conjunction with the reinforcing sleeve 9, the stainless steel pipe body 1 is further strengthened to prevent the stainless steel pipe body 1 from deformation.

[0031] Working principle: The inside of the anti-corrosion inner tube 7 is made into a smooth surface by electrolytic polishing. When the two groups of stainless steel pipe bodies 1 are connected, the connecting head 5 is rotated to connect the connecting head 5 to the anti-corrosion inner tube 7. At this time, the connecting head 5 is inserted into the installation groove 10, so that the fixing plates 2 on the two groups of stainless steel pipe bodies 1 fit each other, and the gaskets 3 on the fixing plates 2 are squeezed inward, so that the two groups of fixing plates 2 are completely sealed, thereby installing the fastening screws 8 on the fixing plates 2 to achieve the connection of the stainless steel pipe body 1. Since the connection gap between the connecting head 5 and the anti-corrosion inner tube 7 is misaligned with the connection gap between the two groups of fixing plates 2, leakage of the stainless steel pipe body 1 can be further avoided. At the same time, the sealing ring 6 on the connecting head 5 seals the anti-corrosion inner tube 7 with the reinforcing sleeve 9 to ensure the sealing of the stainless steel pipe body 1. The reinforcing sleeve 9 inside the stainless steel pipe body 1 and the reinforcement component 4 outside the stainless steel pipe body 1 strengthen the stainless steel pipe body 1 as a whole.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-purity and high-cleanliness semiconductor electrolytic polished stainless steel tube, comprising a stainless steel tube body (1), characterized in that: A reinforcing sleeve (9) is fixedly provided inside the stainless steel pipe body (1), and an anti-corrosion inner pipe (7) is fixedly provided inside the reinforcing sleeve (9). Fixing plates (2) are welded to the upper and lower ends of the stainless steel pipe body (1), and a connector (5) is welded to the top of one set of the fixing plates (2). A gasket (3) is movably provided between the connector (5) and the fixing plate (2). A mounting groove (10) is provided between the anti-corrosion inner tube (7) and the reinforcing sleeve (9), the connector (5) passes through the interior of the mounting groove (10), the internal thread of the fixing plate (2) is connected with a fastening screw (8), and the exterior of the connector (5) is bonded with a sealing ring (6).

2. The high-purity and high-cleanliness semiconductor electrolytic polished stainless steel tube according to claim 1, characterized in that: A reinforcement component (4) is fixedly provided on the outside of the stainless steel pipe body (1), and the reinforcement component (4) comprises two groups of supporting collars (403).

3. The high-purity and high-cleanliness semiconductor electrolytic polished stainless steel tube according to claim 2, characterized in that: A support member (401) is welded between the support collar (403) and the stainless steel pipe body (1).

4. The high-purity and high-cleanliness semiconductor electrolytic polished stainless steel tube according to claim 3, characterized in that: A reinforcing rib (402) is provided between the upper and lower groups of support members (401), and both ends of the reinforcing rib (402) are respectively fixed to the support members (401).

5. The high-purity and high-cleanliness semiconductor electrolytic polished stainless steel tube according to claim 4, characterized in that: The reinforcing ribs (402) are spirally wound along the surface of the stainless steel pipe body (1), and the reinforcing ribs (402) and the surface of the stainless steel pipe body (1) are in contact with each other.

6. The high-purity and high-cleanliness semiconductor electrolytic polished stainless steel tube according to claim 5, characterized in that: The gasket (3) is embedded in the surface of the fixing plate (2), and the gasket (3) and the fixing plate (2) are detachably connected.

7. The high-purity and high-cleanliness semiconductor electrolytic polished stainless steel tube according to claim 6, characterized in that: The connector (5) is threadedly connected to the anti-corrosion inner tube (7), and the surface of the anti-corrosion inner tube (7) is provided with external threads, and the inner wall of the connector (5) is provided with internal threads.

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