Nickel alloy seamless steel pipe

Abstract

The utility model relates to the technical field of steel pipes, and discloses a nickel alloy seamless steel pipe, a steel pipe A is connected with a steel pipe B through a connecting assembly, the connecting assembly comprises a rotating sleeve sleeved on the steel pipe A, a fixed sleeve fixedly arranged on the outer side of the steel pipe B, a sealing ring A and a sealing ring B. The diameter of the sealing ring A is larger than that of the sealing ring B; the inner side of the rotating sleeve and the outer side of the fixing sleeve are both provided with threads, and after the fixing sleeve is screwed on the rotating sleeve to be fixedly connected with the steel pipe B, the baffle ring B is fixedly connected with the baffle ring A. The bolt has the advantages that sealing performance is enhanced, gaps are reduced, and the problem that gas leaks outwards from the gaps under the condition that air pressure is high due to the fact that the gaps exist at the joints after the bolt is installed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, in particular to a nickel alloy seamless steel pipe. Background Art

[0002] Seamless steel pipe is a steel pipe made by perforating a whole round steel bar. There is no weld on the surface. It is called seamless steel pipe. According to the production method, seamless steel pipe can be divided into hot-rolled seamless steel pipe, cold-rolled seamless steel pipe, extruded seamless steel pipe, etc. According to the cross-sectional shape, seamless steel pipe can be divided into round and special-shaped. Special-shaped pipes have various complex shapes such as square, triangle, hexagon, etc.

[0003] Seamless steel pipes have a wide range of applications, and some seamless steel pipes are used to transport gas. When seamless steel pipes are used to transport gas, it is necessary to ensure that the joints of seamless steel pipes have strong airtightness to prevent gas leakage. The traditional way to connect seamless steel pipes usually uses flanges and bolts, and installs gaskets between the flanges for sealing. This sealing method requires holes to be drilled through the flanges and gaskets. After the bolts are installed, there will be gaps at the joints, which will cause gas to leak out from the gaps when the air pressure is high. Utility Model Content

[0004] The utility model aims to provide a nickel alloy seamless steel pipe to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nickel alloy seamless steel pipe, comprising a steel pipe A and a steel pipe B located on the right side of the steel pipe A, characterized in that: the steel pipe A is connected to the steel pipe B through a connecting assembly, the connecting assembly comprises a rotating sleeve sleeved on the steel pipe A, a fixed sleeve fixedly arranged on the outside of the steel pipe B, a sealing ring A and a sealing ring B, the diameter of the sealing ring A is larger than the diameter of the sealing ring B, a sealing groove A matching the sealing ring A is opened on the left side wall of the steel pipe B, a convex ring A matching the sealing groove A is fixedly arranged on the right side of the steel pipe A, the sealing ring A is located inside the sealing groove A, and the convex ring A is inserted into the sealing groove. The sealing groove A is in contact with the sealing ring A, a sealing groove B matching the sealing ring B is opened on the right side wall of the steel pipe A, a convex ring B matching the sealing groove B is fixedly arranged on the left side of the steel pipe B, the sealing ring B is located inside the sealing groove B, the convex ring B is inserted into the sealing groove B and is in contact with the sealing ring B, a retaining ring A is fixedly arranged on the outside of the steel pipe A, a retaining ring B is fixedly arranged on the inside of the rotating sleeve, the diameter of the retaining ring A is larger than the inner diameter of the retaining ring B, the retaining ring B is located on the left side of the retaining ring A, the inner side of the rotating sleeve and the outer side of the fixed sleeve are both provided with threads, and after the rotating sleeve is screwed on the fixed sleeve and fixedly connected to the steel pipe B, the retaining ring B is fixedly connected to the retaining ring A.

[0006] Preferably, the connecting component also includes soft magnets, a magnetic groove is provided on the outer wall of the steel pipe A, iron sheets are provided on the inner wall of the magnetic groove and the left wall of the steel pipe B, and the left and right ends of the soft magnets are magnetically connected to the iron sheets on the inner wall of the magnetic groove and the left wall of the steel pipe B respectively.

[0007] Preferably, a plurality of positioning columns are fixedly provided on the right side of the steel pipe A, a plurality of positioning holes matching the positioning columns are opened on the steel pipe B, the length of the positioning columns is smaller than the length of the positioning holes, and the positioning columns are inserted into the positioning holes to contact and connect with the steel pipe B.

[0008] Preferably, the connection assembly further comprises an elastic ring sleeved on the steel pipe A, and the elastic ring is located between the retaining ring A and the retaining ring B and is in contact with the both.

[0009] Preferably, a plurality of anti-slip strips are fixedly provided on the outer side of the rotating sleeve.

[0010] Preferably, a dustproof ring with a diameter larger than that of the rotating sleeve is fixedly provided on the right side of the fixed sleeve.

[0011] Preferably, the sealing ring A and the sealing ring B are both made of nitrile rubber, and the elastic ring is made of butadiene rubber.

[0012] The beneficial effects of the utility model are as follows: when the utility model is assembled, the steel pipe A is placed on the left side of the steel pipe B, the sealing ring A and the sealing ring B are respectively placed in the sealing groove A and the sealing groove B to be in contact with the steel pipe B and the steel pipe A, the convex ring A and the convex ring B are respectively aligned and inserted into the sealing groove A and the sealing groove B to be in contact with the sealing ring A and the sealing ring B. Since the sealing groove A is provided on the left side wall of the steel pipe B and the sealing groove B is provided on the right side wall of the steel pipe A, a double sealing structure in different directions is formed, which plays a role in enhancing the sealing performance; since the diameter of the retaining ring A is larger than the inner diameter of the retaining ring B, the retaining ring B is located on the left side of the retaining ring A, the rotating sleeve is screwed onto the fixing sleeve to be fixedly connected to the steel pipe B , so that the retaining ring B moves to the right and is fixedly connected with the retaining ring A, thereby squeezing the steel pipe A to make the steel pipe A and the steel pipe B fixedly connected, and then completely compressing the sealing ring A and the sealing ring B. Since no bolts are used to fix the steel pipe A and the steel pipe B, the gap is reduced. In summary, the utility model has the beneficial effects of enhancing the sealing and reducing the gap, and solves the problem that the traditional method of connecting seamless steel pipes usually uses flanges and bolts, and sealing gaskets are added between the flanges for sealing. This sealing method requires holes to be drilled through the flanges and the sealing gaskets. After the bolts are installed, there will be gaps at the connection, which causes gas to leak out from the gaps when the air pressure is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0014] Attached Figure 2It is a front view of the utility model;

[0015] Attached Figure 3 For attachment Figure 2 Sectional view at AA;

[0016] Attached Figure 4 For attachment Figure 3 Enlarged view of point A in the middle.

[0017] In the figure: steel pipe A1, steel pipe B2, rotating sleeve 3, fixed sleeve 4, sealing ring A5, sealing ring B6, sealing groove A7, convex ring A8, sealing groove B9, convex ring B10, retaining ring A11, retaining ring B12, soft magnet 13, magnetic suction groove 14, positioning column 15, positioning hole 16, elastic ring 17, anti-slip strip 18, dustproof ring 19. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] like Figure 1-4As shown, the utility model discloses a nickel alloy seamless steel pipe, comprising a steel pipe A1, a steel pipe B2 located on the right side of the steel pipe A1, the steel pipe A1 and the steel pipe B2 are connected by a connecting assembly, the connecting assembly comprises a rotating sleeve 3 sleeved on the steel pipe A1, a fixed sleeve 4 fixedly arranged on the outside of the steel pipe B2, a sealing ring A5 and a sealing ring B6, the diameter of the sealing ring A5 is larger than the diameter of the sealing ring B6, a sealing groove A7 matching the sealing ring A5 is opened on the left side wall of the steel pipe B2, a convex ring A8 matching the sealing groove A7 is fixedly arranged on the right side of the steel pipe A1, the sealing ring A5 is located inside the sealing groove A7, the convex ring A8 is inserted into the sealing groove A7 and is in contact with the sealing ring A5, A sealing groove B9 matching the sealing ring B6 is provided on the right side wall of the steel pipe A1, a convex ring B10 matching the sealing groove B9 is fixedly provided on the left side of the steel pipe B2, the sealing ring B6 is located inside the sealing groove B9, the convex ring B10 is inserted into the sealing groove B9 and is in contact with the sealing ring B6, a retaining ring A11 is fixedly provided on the outside of the steel pipe A1, a retaining ring B12 is fixedly provided on the inside of the rotating sleeve 3, the diameter of the retaining ring A11 is larger than the inner diameter of the retaining ring B12, the retaining ring B12 is located on the left side of the retaining ring A11, the inner side of the rotating sleeve 3 and the outer side of the fixed sleeve 4 are both provided with threads, and after the rotating sleeve 3 is screwed on the fixed sleeve 4 and fixedly connected to the steel pipe B2, the retaining ring B12 is fixedly connected to the retaining ring A11. When the utility model is assembled, the steel pipe A1 is placed on the left side of the steel pipe B2, the sealing ring A5 and the sealing ring B6 are respectively placed in the sealing groove A7 and the sealing groove B9 to contact and connect with the steel pipe B2 and the steel pipe A1, and the convex ring A8 and the convex ring B10 are respectively aligned and inserted into the sealing groove A7 and the sealing groove B9 to contact and connect with the sealing ring A5 and the sealing ring B6. Since the sealing groove A7 is provided on the left side wall of the steel pipe B2 and the sealing groove B9 is provided on the right side wall of the steel pipe A1, a double sealing structure in different directions is formed, which plays a role in enhancing the sealing performance; since the diameter of the retaining ring A11 is larger than the inner diameter of the retaining ring B12, the retaining ring B12 is located on the left side of the retaining ring A11, the rotating sleeve 3 is screwed onto the fixed sleeve 4 to fix with the steel pipe B2 Fixed connection, so that the retaining ring B12 moves to the right and is fixedly connected with the retaining ring A11, thereby squeezing the steel pipe A1 to make the steel pipe A1 and the steel pipe B2 fixedly connected, and then completely tightening the sealing ring A5 and the sealing ring B6. Since no bolts are used to fix the steel pipe A1 and the steel pipe B2, the gap is reduced. In summary, the utility model has the beneficial effects of enhancing sealing and reducing gaps, and solves the problem of the traditional method of connecting seamless steel pipes usually using flanges and bolts, and installing sealing gaskets between the flanges for sealing. This sealing method requires holes to be drilled through the flanges and the sealing gaskets. After the bolts are installed, there will be gaps at the connection, which causes gas to leak out from the gaps under high air pressure.

[0020] Preferably, the connection assembly further comprises a soft magnet 13, a magnetic groove 14 is provided on the outer wall of the steel pipe A1, iron sheets are provided on the inner wall of the magnetic groove 14 and the left wall of the steel pipe B2, and the left and right ends of the soft magnet 13 are magnetically connected to the inner wall of the magnetic groove 14 and the iron sheet on the left wall of the steel pipe B2. Since the left and right ends of the soft magnet 13 are magnetically connected to the inner wall of the magnetic groove 14 and the iron sheet on the left wall of the steel pipe B2, the steel pipe A1 and the steel pipe B2 are pre-fixed before they are completely fixed.

[0021] Preferably, a plurality of positioning posts 15 are fixedly provided on the right side of the steel pipe A1, a plurality of positioning holes 16 matching the positioning posts 15 are provided on the steel pipe B2, the length of the positioning posts 15 is less than the length of the positioning holes 16, and the positioning posts 15 are inserted into the positioning holes 16 to contact and connect with the steel pipe B2. Since the positioning posts 15 are inserted into the positioning holes 16 to contact and connect with the steel pipe B2, the steel pipe A1 is positioned when the steel pipe A1 is connected with the steel pipe B2; since the length of the positioning posts 15 is less than the length of the positioning holes 16, the positioning posts 15 are prevented from interfering with the steel pipe B2.

[0022] Preferably, the connection assembly further comprises an elastic ring 17 sleeved on the steel pipe A1, and the elastic ring 17 is located between the retaining ring A11 and the retaining ring B12 and is in contact with the two. Since the elastic ring 17 is located between the retaining ring A11 and the retaining ring B12 and is in contact with the two, it plays a role in preventing the retaining ring A11 and the retaining ring B12 from being seriously worn.

[0023] Preferably, a plurality of anti-skid strips 18 are fixedly disposed on the outer side of the rotating sleeve 3. Since a plurality of anti-skid strips 18 are fixedly disposed on the outer side of the rotating sleeve 3, the rotating sleeve 3 is prevented from slipping when rotating.

[0024] Preferably, a dustproof ring 19 having a larger diameter than the rotating sleeve 3 is fixedly arranged on the right side of the fixed sleeve 4. Since the dustproof ring 19 having a larger diameter than the rotating sleeve 3 is fixedly arranged on the right side of the fixed sleeve 4, it plays a role in preventing foreign dust from entering the threaded connection.

[0025] Preferably, the sealing ring A5 and the sealing ring B6 are made of nitrile rubber, and the elastic ring 17 is made of butadiene rubber. Since the sealing ring A5 and the sealing ring B6 are made of nitrile rubber, they have the characteristics of good air tightness and good wear resistance; since the elastic ring 17 is made of butadiene rubber, it has the characteristics of good elasticity and good wear resistance.

[0026] The above description is only a preferred embodiment of the present invention and is 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 nickel alloy seamless steel pipe, comprising a steel pipe A (1) and a steel pipe B (2) located on the right side of the steel pipe A (1), characterized in that: The steel pipe A (1) is connected to the steel pipe B (2) via a connecting assembly, the connecting assembly comprising a rotating sleeve (3) sleeved on the steel pipe A (1), a fixed sleeve (4) fixedly arranged on the outside of the steel pipe B (2), a sealing ring A (5) and a sealing ring B (6), wherein the diameter of the sealing ring A (5) is larger than the diameter of the sealing ring B (6), a sealing groove A (7) matching the sealing ring A (5) is provided on the left side wall of the steel pipe B (2), a convex ring A (8) matching the sealing groove A (7) is fixedly arranged on the right side of the steel pipe A (1), the sealing ring A (5) is located inside the sealing groove A (7), the convex ring A (8) is inserted into the sealing groove A (7) and is in contact with the sealing ring A (5), and a sealing groove A (8) matching the sealing ring B (6) is provided on the right side wall of the steel pipe A (1). The steel pipe (2) has a sealing groove B (6) matching the sealing groove B, a convex ring B (10) matching the sealing groove B is fixedly arranged on the left side of the steel pipe (2), the sealing ring B (6) is located inside the sealing groove B, the convex ring B (10) is inserted into the sealing groove B and is in contact with the sealing ring B (6), a retaining ring A (11) is fixedly arranged on the outer side of the steel pipe (1), a retaining ring B (12) is fixedly arranged on the inner side of the rotating sleeve (3), the diameter of the retaining ring A (11) is larger than the inner diameter of the retaining ring B (12), the retaining ring B (12) is located on the left side of the retaining ring A (11), the inner side of the rotating sleeve (3) and the outer side of the fixed sleeve (4) are both provided with threads, and after the rotating sleeve (3) is screwed onto the fixed sleeve (4) and fixedly connected to the steel pipe (2), the retaining ring B (12) is fixedly connected to the retaining ring A (11).

2. A nickel alloy seamless steel pipe according to claim 1, characterized in that: The connection assembly also includes a soft magnet (13). A magnetic attraction groove (14) is provided on the outer wall of the steel pipe A (1). Iron sheets are provided on the inner wall of the magnetic attraction groove (14) and the left wall of the steel pipe B (2). The left and right ends of the soft magnet (13) are magnetically connected to the inner wall of the magnetic attraction groove (14) and the iron sheet on the left wall of the steel pipe B (2).

3. The nickel alloy seamless steel pipe according to claim 1, characterized in that: A plurality of positioning posts (15) are fixedly arranged on the right side of the steel pipe A (1), and a plurality of positioning holes (16) matching the positioning posts (15) are opened on the steel pipe B (2). The length of the positioning posts (15) is smaller than the length of the positioning holes (16), and the positioning posts (15) are inserted into the positioning holes (16) to contact and connect with the steel pipe B (2).

4. The nickel alloy seamless steel pipe according to claim 1, characterized in that: The connection assembly further comprises an elastic ring (17) sleeved on the steel pipe A (1), wherein the elastic ring (17) is located between the retaining ring A (11) and the retaining ring B (12) and is in contact with the retaining ring.

5. The nickel alloy seamless steel pipe according to claim 1, characterized in that: A plurality of anti-slip strips (18) are fixedly arranged on the outer side of the rotating sleeve (3).

6. The nickel alloy seamless steel pipe according to claim 1, characterized in that: A dustproof ring (19) having a larger diameter than the rotating sleeve (3) is fixedly arranged on the right side of the fixed sleeve (4).

7. The nickel alloy seamless steel pipe according to claim 4, characterized in that: The sealing ring A (5) and the sealing ring B (6) are both made of nitrile rubber, and the elastic ring (17) is made of butadiene rubber.

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