Corrosion-resistant liner stainless steel sealing connecting piece

Abstract

The utility model discloses a corrosion-resistant lining stainless steel sealing connecting piece, which belongs to the technical field of stainless steel pipe fittings and comprises a left connecting piece and a right connecting piece, the left connecting piece and the right connecting piece respectively comprise a stainless steel inner pipe and an outer-layer steel pipe, and the outer wall of the stainless steel inner pipe is fixedly connected with the inner wall of the outer-layer steel pipe. The stainless steel inner pipe at the inner end of the left connecting piece extends rightwards to form an extending pipe, the stainless steel inner pipe of the right connecting piece is shrunk rightwards to form an inner connecting groove, a first flange plate is fixedly connected to the outer wall of the inner end of the outer-layer steel pipe of the left connecting piece, and a second flange plate is fixedly connected to the outer wall of the inner end of the outer-layer steel pipe of the right connecting piece. Sealing ring grooves are formed in the end faces of the opposite sides of the first flange plate and the second flange plate, sealing rings are embedded in the sealing ring grooves, the connecting piece is good in sealing performance, not prone to corrosion and convenient to use, and the sealing performance and the connecting efficiency of pipeline connection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipe fittings, in particular to a corrosion-resistant inner-lined stainless steel sealing connector. Background Technique

[0002] Stainless steel sealing connectors are an indispensable part of modern industrial pipeline systems. They are mainly used to ensure the sealing performance and reliability of pipeline systems. Stainless steel materials are widely used in various sealing connectors due to their excellent corrosion resistance and strength. The design and installation of these connectors are crucial for the performance of the entire pipeline system, and they can provide long-term sealing effects under different environments and conditions.

[0003] The installation of stainless steel sealing connectors involves multiple steps, including selecting the appropriate model, preparation work, connection preparation, fixing the head, and checking the sealing performance, etc. The correct installation method can ensure the sealing effect and service life of the connectors.

[0004] Existing stainless steel sealing connectors mostly adopt threading and welding methods. However, this method does not work well in the connection of inner-lined stainless steel pipes. Welding will damage the inner lining environment of the inner-lined stainless steel pipes, and it is easy to cause corrosion and fracture at the joints of the inner-lined stainless steel pipes. The outer wall of the inner-lined stainless steel pipes usually uses steel pipes. When using threaded connection, not only the outer wall of the inner-lined stainless steel pipes needs to be turned with threads, which increases the processing amount of the inner-lined stainless steel pipes, but also the sealing performance after connection is poor and leakage is likely to occur. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a corrosion-resistant inner-lined stainless steel sealing connector.

[0006] The technical solution of the utility model is: a corrosion-resistant inner-lined stainless steel sealing connector, including a left connector and a right connector. Both the left connector and the right connector include a stainless steel inner pipe and an outer steel pipe. The outer wall of the stainless steel inner pipe is fixedly connected to the inner wall of the outer steel pipe. The stainless steel inner pipe at the inner end of the left connector extends to the right to form an extension pipe. The stainless steel inner pipe of the right connector tapers to the right to form an inner connection groove. The outer wall of the inner end of the outer steel pipe of the left connector is fixedly connected with a first flange. The outer wall of the inner end of the outer steel pipe of the right connector is fixedly connected with a second flange. Sealing ring grooves are provided on the end faces of the opposite sides of the first flange and the second flange. A sealing ring is embedded in the sealing ring groove. The first flange and the second flange are fixedly connected by a plurality of first bolts. A clamping member is provided at each of the outer ends of the left connector and the right connector.

[0007] Further, the clamping member includes an insertion tube and a clamping tube. The insertion tube at the outer end of the left connecting member is inserted and connected into the inner-lined stainless steel pipe to be connected on the left side. The insertion tube at the outer end of the right connecting member is inserted and connected into the inner-lined stainless steel pipe to be connected on the right side. The clamping tube at the outer end of the left connecting member is threadedly connected to the outer steel pipe of the left connecting member. The clamping tube at the outer end of the right connecting member is threadedly connected to the outer steel pipe of the right connecting member. An elastic groove is formed on each of the front and rear side walls of the clamping tube. A sealing sleeve is fixedly connected to the inner wall of the clamping tube. A clamping groove is provided on the outer wall of the clamping tube, and a clamping band member is provided on the clamping groove.

[0008] Note: The insertion tube is inserted into the pipe to be connected, then the sealing sleeve is used to increase the sealing performance and friction of the connection, and finally the clamping band member is used to tighten.

[0009] Further, the clamping band member includes two semi-circular clamping rings, and the two ends of the two semi-circular clamping rings are respectively fixedly connected by bolts II.

[0010] Note: This kind of clamping band member is easy to disassemble and install.

[0011] Further, an anti-rust coating is sprayed on the outer wall of the outer steel pipe.

[0012] Note: The anti-rust coating can effectively protect the outer steel pipe from corrosion and provide effective protection for the outer steel pipe.

[0013] Further, an epoxy adhesive layer is provided on the outer wall of the insertion tube.

[0014] Note: The epoxy adhesive layer can effectively improve the connection stability between the insertion tube and the inner wall of the butt joint pipe, improve the sealing performance of the connection, and make the connection part not easy to fall off.

[0015] The beneficial effects of the present utility model are:

[0016] The present utility model is fixedly connected to the butt joint pipe through the clamping member. The sealing sleeve and the epoxy adhesive layer in the clamping member improve the sealing performance of the connection part, and at the same time improve the connection stability, making the connection part not easy to fall off. Compared with traditional welding, this kind of connecting member of the present utility model has good sealing performance, is not easy to rust, is convenient to use, and improves the sealing performance and connection efficiency of the pipe connection. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present utility model.

[0018] Figure 2 is Figure 1 the enlarged view of part A in

[0019] Figure 3 is Figure 1 the enlarged view of part B in

[0020] Figure 4 is Figure 1 The enlarged view at position C in

[0021] Figure 5 is the structural schematic diagram of the clamping pipe of the present utility model.

[0022] Figure 6 is the left view of the clamp member of the present utility model.

[0023] Wherein, 1 - left connecting member, 2 - right connecting member, 3 - stainless steel inner pipe, 4 - outer steel pipe, 31 - extension pipe, 32 - connecting groove, 11 - flange one, 21 - flange two, 5 - sealing ring groove, 51 - sealing ring, 52 - bolt one, 6 - clamping member, 61 - insertion pipe, 62 - clamping pipe, 63 - elastic groove, 64 - sealing sleeve, 65 - clamping groove, 66 - clamp member, 661 - semi-circular clamping ring, 662 - bolt two, 7 - anti-rust coating, 8 - epoxy adhesive layer. Specific embodiments

[0024] Embodiment 1:

[0025] As Figure 1 shown, it includes a left connecting member 1 and a right connecting member 2. Both the left connecting member 1 and the right connecting member 2 include a stainless steel inner pipe 3 and an outer steel pipe 4. The outer wall of the stainless steel inner pipe 3 is fixedly connected to the inner wall of the outer steel pipe 4. The stainless steel inner pipe 3 at the inner end of the left connecting member 1 extends rightward to form an extension pipe 31. The stainless steel inner pipe 3 of the right connecting member 2 tapers rightward to form an inner connecting groove 32. The outer wall of the inner end of the outer steel pipe 4 of the left connecting member 1 is fixedly connected with a flange one 11. The outer wall of the inner end of the outer steel pipe 4 of the right connecting member 2 is fixedly connected with a flange two 21. Sealing ring grooves 5 are provided on the opposite end faces of the flange one 11 and the flange two 21. A sealing ring 51 is embedded in the sealing ring groove 5. The flange one 11 and the flange two 21 are fixedly connected by a plurality of bolts one 52. A clamping member 6 is provided at each of the outer ends of the left connecting member 1 and the right connecting member 2.

[0026] As Figure 3 shown, the clamping member 6 includes an insertion pipe 61 and a clamping pipe 62. The insertion pipe 61 at the outer end of the left connecting member 1 is inserted and connected into the lined stainless steel pipe to be connected on the left side. The insertion pipe 61 at the outer end of the right connecting member 2 is inserted and connected into the lined stainless steel pipe to be connected on the right side. The clamping pipe 62 at the outer end of the left connecting member 1 is threadedly connected to the outer steel pipe 4 of the left connecting member 1. The clamping pipe 62 at the outer end of the right connecting member 2 is threadedly connected to the outer steel pipe 4 of the right connecting member 2. An elastic groove 63 is formed on each of the front and rear side walls of the clamping pipe 62. A sealing sleeve 64 is fixedly connected to the inner wall of the clamping pipe 62. A clamping groove 65 is provided on the outer wall of the clamping pipe 62. A clamp member 66 is provided on the clamping groove 65.

[0027] As Figure 6 shown, the clamp member 66 includes two semi-circular clamping rings 661, and both ends of the two semi-circular clamping rings 661 are fixedly connected through bolts II 662 respectively. This kind of clamp member 66 is easy to disassemble and install.

[0028] Embodiment 2:

[0029] Based on Embodiment 1, the difference between Embodiment 2 and Embodiment 1 is that, as Figure 4 shown, an anti-rust coating 7 is sprayed on the outer wall of the outer steel pipe 4, and the anti-rust coating 7 is formed by painting with the inorganic zinc-rich coating of the anti-rust paint under the brand of Tupu.

[0030] Compared with Embodiment 1, in Embodiment 2, the anti-rust coating 7 can effectively protect the outer steel pipe 4 from corrosion and provide effective protection for the outer steel pipe 4.

[0031] Embodiment 3:

[0032] Based on Embodiment 2, the difference between Embodiment 3 and Embodiment 2 is that an epoxy glue layer 8 is provided on the outer wall of the insertion pipe 61, and the material used for the epoxy glue layer 8 is the epoxy resin glue under the brand of Jianghe New Materials in the prior art.

[0033] Compared with Embodiment 2, in Embodiment 3, the epoxy glue layer 8 can effectively improve the connection stability between the insertion pipe 61 and the inner wall of the butt joint pipe, improve the connection tightness, and make the joint not easy to fall off.

[0034] The working method of the above Embodiment 3:

[0035] Thread the clamping members 6 onto the left connecting member 1 and the right connecting member 2 respectively, apply epoxy glue to the insertion pipes 61 on the left connecting member 1 and the right connecting member 2, then insert them into the interiors of the two pipes to be butted respectively. By tightening the bolts II 662 on the clamp member 66, make the sealing sleeve 64 closely adhere to the outer wall of the butt joint pipe to form a seal. Then insert the extension pipe 31 into the connection groove 32, and fixedly connect the flange I 11 and the flange II 21 to each other through the bolt I 52. The sealing rings 51 on the flange I 11 and the sealing rings 51 on the flange II 21 are mutually extruded to form a sealed environment.

Claims

1. A corrosion-resistant lined stainless steel sealed connector, characterized in that, It includes a left connecting piece (1) and a right connecting piece (2). Both the left connecting piece (1) and the right connecting piece (2) include a stainless steel inner pipe (3) and an outer steel pipe (4). The outer wall of the stainless steel inner pipe (3) is fixedly connected to the inner wall of the outer steel pipe (4). The stainless steel inner pipe (3) at the inner end of the left connecting piece (1) extends rightward to form an extension pipe (31). The stainless steel inner pipe (3) of the right connecting piece (2) tapers rightward to form an inner connecting groove (32). The outer wall of the inner end of the outer steel pipe (4) of the left connecting piece (1) is fixedly connected with a first flange (11). The outer wall of the inner end of the outer steel pipe (4) of the right connecting piece (2) is fixedly connected with a second flange (21). Sealing ring grooves (5) are provided on the end faces of the opposite sides of the first flange (11) and the second flange (21). Sealing rings (51) are embedded in the sealing ring grooves (5). The first flange (11) and the second flange (21) are fixedly connected by a plurality of first bolts (52). A clamping member (6) is provided at each of the outer ends of the left connecting piece (1) and the right connecting piece (2).

2. The corrosion-resistant inner-lined stainless steel sealing connector according to claim 1, wherein, The clamping member (6) includes an insertion pipe (61) and a clamping pipe (62). The insertion pipe (61) at the outer end of the left connecting piece (1) is inserted and connected into the left-side stainless steel-lined pipe to be connected. The insertion pipe (61) at the outer end of the right connecting piece (2) is inserted and connected into the right-side stainless steel-lined pipe to be connected. The clamping pipe (62) at the outer end of the left connecting piece (1) is threadedly connected to the outer steel pipe (4) of the left connecting piece (1). The clamping pipe (62) at the outer end of the right connecting piece (2) is threadedly connected to the outer steel pipe (4) of the right connecting piece (2). An elastic groove (63) is formed on each of the front and rear side walls of the clamping pipe (62). A sealing sleeve (64) is fixedly connected to the inner wall of the clamping pipe (62). A clamping groove (65) is provided on the outer wall of the clamping pipe (62). A clamping band member (66) is provided on the clamping groove (65).

3. The corrosion-resistant inner-lined stainless steel sealed connector according to claim 2, characterized in that, The clamping band member (66) includes two semi-circular clamping rings (661). The two ends of the two semi-circular clamping rings (661) are respectively fixedly connected by second bolts (662).

4. The corrosion-resistant inner-lined stainless steel sealing connector according to claim 1, wherein, An anti-rust coating (7) is sprayed on the outer wall of the outer steel pipe (4).

5. The corrosion-resistant lined stainless steel sealing connector according to claim 2, characterized in that, An epoxy glue layer (8) is provided on the outer wall of the insertion pipe (61).

Images