An adjustable sealed insulation joint

Abstract

The application discloses an adjustable sealing and insulating joint, a first connecting pipe is inserted into a second connecting pipe, a first pipe section and a second pipe section are arranged on the end of the first connecting pipe, the diameter of the first pipe section is larger than that of the second pipe section, the diameter of the second pipe section is larger than that of the body of the first connecting pipe, a clamping head is arranged on the end of the first pipe section, and an insulating and sealing block is clamped on the clamping head; a third pipe section is arranged on the end of the second connecting pipe, the diameter of the third pipe section is larger than that of the body of the second connecting pipe, and a folded edge is arranged on the end of the third pipe section; an insulating and sealing gasket is arranged between the third pipe section and the second pipe section, an insulating and sealing ring is arranged on the folded edge, the first connecting pipe and the second connecting pipe are connected in an insulating and sealing mode through the insulating and sealing block, the insulating and sealing gasket and the insulating and sealing ring, and a sealing detection structure is arranged between the first pipe section and the first connecting pipe. The adjustable sealing and insulating joint can solve the problem that the existing insulating joint can only be used for connecting pipelines with specific lengths and has poor adaptability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of insulation joint, in particular to an adjustable sealing insulation joint. BACKGROUND

[0002] Insulation joint is an important element for cathodic protection of pipeline to prevent electrochemical corrosion. The structure of insulation joint mainly consists of a short section, a steel flange, a steel fixing ring, a sealing element, an insulation plate, an insulation sleeve and a filling insulation material, so as to form a complete closed system. In order to ensure the sealing and insulation of the existing insulation joint, the structure is generally rigid, which leads to that the insulation joint can only be connected to the pipeline of a specific length, and the adaptability of the insulation joint is poor. SUMMARY

[0003] The purpose of the present application is to provide an adjustable sealing insulation joint, which solves the problem of poor adaptability of the existing insulation joint which can only be connected to the pipeline of a specific length.

[0004] In order to achieve the above purpose, the present application provides an adjustable sealing insulation joint, which comprises a connecting pipe I and a connecting pipe II, the connecting pipe I is inserted into the inside of the connecting pipe II, a first pipe section and a second pipe section are sequentially arranged on the end of the connecting pipe I, the diameter of the first pipe section is larger than that of the second pipe section, the diameter of the second pipe section is larger than that of the body of the connecting pipe I, a clamping head is arranged on the end of the first pipe section, and an insulation sealing block is clamped on the clamping head; a third pipe section is arranged on the end of the connecting pipe II, the diameter of the third pipe section is larger than that of the body of the connecting pipe II, a folded edge is arranged on the end of the third pipe section; an insulation sealing gasket is arranged between the third pipe section and the second pipe section, an insulation sealing ring is arranged on the folded edge, the connecting pipe I and the connecting pipe II are insulated and sealed by the insulation sealing block, the insulation sealing gasket and the insulation sealing ring; and a sealing detection structure is arranged between the first pipe section and the connecting pipe I.

[0005] Preferably, the two ends of the insulation sealing block are provided with outwardly folded flanges.

[0006] Preferably, a first transition section is arranged between the clamping head and the first pipe section, and one end of the insulation sealing block is clamped on the first transition section.

[0007] Preferably, a second transition section is arranged between the first pipe section and the second pipe section, a third transition section is arranged between the second pipe section and the body of the connecting pipe II, a fourth transition section is arranged between the body of the connecting pipe I and the third pipe section, and the insulation sealing ring is in close contact with the inner surface of the third transition section.

[0008] Preferably, a mounting groove for mounting the insulation sealing ring is arranged on the folded edge, the insulation sealing ring and the mounting groove are in sealed sliding connection, and a spring is arranged between the insulation sealing ring and the bottom of the mounting groove.

[0009] Preferably, the inner surfaces of the first connecting pipe and the second connecting pipe are provided with insulation layers.

[0010] Preferably, the sealing detection structure comprises a sealing cavity formed between the first connecting pipe, the first pipe segment, the insulation sealing block and the insulation sealing pad, the sealing cavity is filled with inert gas, and a pressure gauge for detecting the gas pressure is arranged on the sealing cavity.

[0011] Preferably, the sealing cavity is provided with a gas inlet, and a sealing plug is arranged on the gas inlet.

[0012] Preferably, the outer surface of the first connecting pipe is provided with a fixing plate, the end of the clamp head is provided with a screw rod, a plurality of through holes for the screw rod to pass through are arranged on the fixing plate, and the screw rod and the fixing plate are connected through a nut.

[0013] Preferably, the inside of the through hole is provided with an insulation sleeve.

[0014] The adjustable sealing and insulation joint has the following advantages and positive effects:

[0015] 1. By adjusting the length of the first connecting pipe inserted into the second connecting pipe, the sealing and insulation joint can be connected with two pipelines to be connected at different distances, improving the adaptability. The insulation sealing block and the insulation sealing pad between the first connecting pipe and the second connecting pipe ensure the sealing and insulation connection between the first connecting pipe and the second connecting pipe. The insulation sealing ring is in close contact with the third transition segment under the action of the spring, further ensuring the sealing and insulation effect between the first connecting pipe and the second connecting pipe.

[0016] 2. The sealing cavity is arranged between the first pipe segment and the first connecting pipe, and the sealing cavity is filled with inert gas, which is beneficial to improve the sealing effect between the first connecting pipe and the second connecting pipe. The pressure gauge arranged on the first pipe segment can monitor the pressure of the inert gas, so as to detect the sealing property between the first connecting pipe and the second connecting pipe.

[0017] 3. The fixing plate is arranged on the first connecting pipe, the clamp head is connected with the fixing plate through the screw rod and the nut, the connection strength between the first connecting pipe and the second connecting pipe is improved, and the first connecting pipe and the second connecting pipe can also be limited, so as to ensure the sealing effect between the first connecting pipe and the second connecting pipe.

[0018] The technical solutions of the present application will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the adjustable sealing and insulation joint of the present application.

[0020] Figure 2 It is a partial enlarged view of A in the accompanying drawings. Figure 1 ​

[0021] Reference signs

[0022] 1, first pipe; 2, second pipe; 3, clamp; 4, first pipe section; 5, second pipe section; 6, first transition section; 7, second transition section; 8, third transition section; 9, third pipe section; 10, fourth transition section; 11, folded edge; 12, fixing plate; 13, screw; 14, nut; 15, insulating sealing block; 16, insulating sleeve; 17, insulating sealing gasket; 18, insulating sealing ring; 19, sealing cavity; 20, pressure gauge; 21, sealing plug; 22, mounting groove; 23, spring. DETAILED DESCRIPTION

[0023] The technical solutions of the present application are further described below by means of the accompanying drawings and examples.

[0024] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the usual meaning understood by a person with ordinary skill in the art to which the present application belongs. The terms "first", "second" and similar words used in the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar words mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, without excluding other elements or objects. The terms "connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0025] EMBODIMENT

[0026] Figure 1 A structure diagram of an embodiment of the adjustable sealing and insulating joint is shown in the figure. As shown in the figure, the adjustable sealing and insulating joint comprises a first pipe 1 and a second pipe 2, the first pipe 1 is located inside the second pipe 2, and the first pipe 1 is inserted into the second pipe 2. The first pipe 1 and the second pipe 2 are respectively welded and fixedly connected with the pipes connected therewith. The inner surfaces of the first pipe 1 and the second pipe 2 are respectively provided with insulating layers to improve the insulating effect.

[0027] The first pipe section 4 and the second pipe section 5 are sequentially arranged at the end of the connector 1. The diameter of the first pipe section 4 is larger than the diameter of the second pipe section 5, and the diameter of the second pipe section 5 is larger than the diameter of the connector 1 body. A clamp 3 is provided at the end of the first pipe section 4, and a clamping groove is provided on the clamp 3. An insulating sealing block 15 is clamped in the clamping groove of the clamp 3. The insulating sealing block 15 is a rubber annular sealing block, which has good insulation and sealing effect. Both ends of the insulating sealing block 15 are provided with outwardly folded flanges. One end of the insulating sealing block 15 is fitted onto the end of the clamp 3, improving the connection strength between the insulating sealing block 15 and the clamp 3.

[0028] An inclined first transition section 6 is provided between the clamp head 3 and the first pipe section 4. One end of the insulating sealing block 15 is clamped on the first transition section 6 to improve the connection strength between the insulating sealing block 15 and the clamp head 3. An inclined second transition section 7 is provided between the first pipe section 4 and the second pipe section 5, and an inclined third transition section 8 is provided between the second pipe section 5 and the main body of the second pipe connector 2.

[0029] A third pipe section 9 is provided at the end of pipe connector 2, and the diameter of the third pipe section 9 is larger than the diameter of the main body of pipe connector 2. An inclined fourth transition section 10 is provided between the main body of pipe connector 1 and the third pipe section 9. An inwardly bent flange 11 is provided at the end of the third pipe section 9.

[0030] An insulating gasket 17 is installed between the third pipe section 9 and the second pipe section 5. The annular insulating gasket 17 is in close contact with the third pipe section 9 and the second pipe section 5. An insulating sealing ring 18 is installed on the folded edge 11, and the insulating sealing ring 18 is in close contact with the inner surface of the third transition section 8. The insulating gasket 17 and the insulating sealing ring 18 are also made of rubber insulating sealing material. The first pipe 1 and the second pipe 2 are connected by an insulating sealing block 15, an insulating sealing gasket 17, and an insulating sealing ring 18. The three insulating sealing materials between the first pipe 1 and the second pipe 2 improve the insulating sealing effect between them.

[0031] Figure 2 For the appendix Figure 1 A partial enlarged view of section A. As shown, an annular mounting groove 22 for mounting an insulating sealing ring 18 is provided on the folded edge 11. The insulating sealing ring 18 is slidably connected to the mounting groove 22. The size of the insulating sealing ring 18 is slightly larger than the size of the mounting groove 22, resulting in a better sealing effect between the insulating sealing ring 18 and the mounting groove 22. A spring 23 is provided between the insulating sealing ring 18 and the bottom of the mounting groove 22. The spring 23 applies a pushing force to the insulating sealing ring 18, making the insulating sealing ring 18 in tight contact with the third transition section 8, thereby improving the insulation and sealing effect.

[0032] The sealing detection structure is arranged between the first pipe section 4 and the connecting pipe one 1. The sealing detection structure comprises a sealing cavity 19 formed between the connecting pipe one 1, the first pipe section 4, the insulation sealing block 15 and the insulation sealing pad 17. The sealing cavity 19 is filled with inert gas, and the inert gas has good insulation sealing effect. A pressure gauge 20 for detecting gas pressure is arranged on the sealing cavity 19, and the pressure gauge 20 is installed on the first pipe section 4. The sealing effect between the connecting pipe one 1 and the connecting pipe two 2 can be monitored through the pressure change on the pressure gauge 20. An air inlet is arranged on the sealing cavity 19, and a rubber sealing plug 21 is arranged on the air inlet. The inert gas can be filled into the sealing cavity 19 through the air inlet, so as to monitor the sealing effect between the connecting pipe one 1 and the connecting pipe two 2.

[0033] A fixing plate 12 is arranged on the outer surface of the connecting pipe one 1, and the annular fixing plate 12 is welded and fixed on the outer surface of the connecting pipe one 1. A screw rod 13 is arranged on the end of the chuck 3, and one end of the screw rod 13 is welded and fixed on the chuck 3. A plurality of through holes are arranged on the fixing plate 12, and the through holes are arranged in a circumferential array on the fixing plate 12. The screw rod 13 and the fixing plate 12 are locked and connected through a nut 14, so as to improve the connection strength between the connecting pipe one 1 and the connecting pipe two 2. The screw rod 13 also has a limiting effect on the connecting pipe one 1 and the connecting pipe two 2, so as to ensure the insulation sealing connection between the third pipe section 9 and the second pipe section 5. An insulation sleeve 16 is arranged in the through hole.

[0034] The length of the connecting pipe one 1 inserted into the connecting pipe two 2 is adjusted, so that the sealing insulation joint can be connected with two pipelines to be connected with different distances. The insulation sealing block 15 and the insulation sealing pad 17 between the connecting pipe one 1 and the connecting pipe two 2 ensure the sealing insulation connection between the connecting pipe one 1 and the connecting pipe two 2. The insulation sealing ring 18 is in close contact with the third transition section 8 under the action of the spring 23, so as to further ensure the sealing insulation effect between the connecting pipe one 1 and the connecting pipe two 2. The sealing insulation joint can adapt to the connection between pipelines with different lengths, so as to improve the adaptability.

[0035] Therefore, the adjustable sealing insulation joint can solve the problem that the existing insulation joint can only adapt to the connection of pipelines with specific length and has poor adaptability.

[0036] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application but not to limit them, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents, and these modifications or replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. An adjustable sealed insulated joint, characterized by: The utility pipe one is inserted into the utility pipe two, the end of the utility pipe two is provided with a first pipe segment and a second pipe segment in sequence, the diameter of the first pipe segment is larger than that of the second pipe segment, the diameter of the second pipe segment is larger than that of the utility pipe two, the end of the first pipe segment is provided with a clamping head, the clamping head is provided with an insulating sealing block; the end of the utility pipe one is provided with a third pipe segment, the diameter of the third pipe segment is larger than that of the utility pipe one, the end of the third pipe segment is provided with a folded edge; the third pipe segment and the second pipe segment are provided with an insulating sealing gasket, the folded edge is provided with an insulating sealing ring, the utility pipe one and the utility pipe two are connected through the insulating sealing block, the insulating sealing gasket and the insulating sealing ring; the first pipe segment and the utility pipe one are provided with a sealing detection structure; The two ends of the insulating sealing block are provided with outwardly folded edges; The clamping head and the first pipe segment are provided with a first transition segment, one end of the insulating sealing block is clamped on the first transition segment; The first pipe segment and the second pipe segment are provided with a second transition segment, the second pipe segment and the utility pipe two are provided with a third transition segment, the utility pipe one and the third pipe segment are provided with a fourth transition segment, the insulating sealing ring and the inner surface of the third transition segment are in close contact; The folded edge is provided with a mounting groove for mounting the insulating sealing ring, the insulating sealing ring and the mounting groove are in sealing sliding connection, a spring is arranged between the insulating sealing ring and the bottom of the mounting groove; The sealing detection structure comprises a sealing cavity, the sealing cavity is formed between the utility pipe one, the first pipe segment, the insulating sealing block and the insulating sealing gasket, the sealing cavity is filled with inert gas, and the sealing cavity is provided with a pressure gauge for detecting the gas pressure.

2. An adjustable sealed and insulated joint according to claim 1, characterized in that: The inner surfaces of the utility pipe one and the utility pipe two are provided with insulating layers.

3. An adjustable sealed and insulated joint according to claim 1, characterized in that: The sealing cavity is provided with a gas inlet, and the gas inlet is provided with a sealing plug.

4. An adjustable sealed insulation joint according to claim 1, wherein: The outer surface of the utility pipe one is provided with a fixed plate, the end of the clamping head is provided with a screw rod, the fixed plate is provided with a plurality of through holes through which the screw rod passes, and the screw rod and the fixed plate are connected through a nut.

5. An adjustable sealed insulated joint according to claim 4, wherein: The through hole is provided with an insulating sleeve.

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