Integral insulation joint, auxiliary installation mechanism and installation method

Abstract

The invention relates to an integral insulation joint, an auxiliary installation mechanism and an installation method, and relates to the technical field of pipeline connection and installation. Comprising an upper connector, a lower connector, a sealing assembly, a sleeve and an insulating sleeve, and it is ensured that pipelines are connected tightly and insulated. The auxiliary installation mechanism comprises a supporting base, a lead screw driving assembly and a butt joint ring assembly. The invention further discloses an installation method adopting the auxiliary installation mechanism. The effect of guaranteeing the sealing performance and the insulating performance of pipeline connection is achieved, meanwhile, by means of the auxiliary installation mechanism and the installation method, accurate butt joint and efficient installation of the pipelines can be achieved, the installation process is stable and reliable, and the working efficiency and the installation quality are improved.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline connection and installation, and in particular to an integral insulating joint, an auxiliary installation mechanism and an installation method. Background Art

[0002] In the transportation of oil, gas, and other energy sources, the safety and stability of pipeline systems are paramount. As key components in pipeline systems, insulating joints fulfill the dual responsibilities of electrical insulation and pipe connection. Their performance directly impacts the proper and safe operation of the entire pipeline system. With the growing demand for transporting energy sources like oil and gas, and the increasing scale of pipeline systems, higher requirements are being placed on the performance and reliability of insulating joints. Their proper operation helps ensure efficient pipeline transportation and mitigates potential risks associated with electrical issues and connection failures, playing a vital role in the stable development of the entire energy transportation industry.

[0003] In previous technologies, to solve pipe connection and insulation problems, traditional insulating joints often adopted specific structural designs. Some insulating joints use common sealing components to achieve basic sealing functions, but the structural design of these sealing components does not fully consider the complexity of actual working conditions. Maintaining insulation performance mainly relies on ordinary insulating components to isolate the current and achieve a certain insulation effect. During the installation process, construction workers usually manually dock and install the various components of the insulating joint, without specialized auxiliary equipment to assist. This method relies entirely on manual experience, and the position needs to be repeatedly adjusted during docking to ensure maximum accuracy. Furthermore, during installation, the insulation joints are protected by simple shielding measures, which lack systematic and targeted protection.

[0004] However, traditional insulating joints have significant defects. On the one hand, the unreasonable design of the sealing structure results in poor sealing effect of the sealing components, which can easily cause medium leakage problems. This not only wastes resources, but also poses serious safety hazards. On the other hand, it is difficult to maintain stable insulation performance over a long period of time. As the use time increases, the insulating components are affected by environmental factors, and the insulation performance gradually decreases, which cannot meet the long-term insulation requirements of the pipeline system. In addition, the installation method is complicated and inefficient. The lack of a dedicated auxiliary installation mechanism makes it difficult to accurately connect the components. In addition, insufficient protective measures during the installation process can easily damage the sealing and insulating components, affecting the performance and life of the insulating joint. Summary of the Invention

[0005] In order to solve the above problems, the present application provides an integral insulating joint, an auxiliary installation mechanism and an installation method.

[0006] An integral insulating joint, comprising an upper joint fixed to the end of an upper conduit and a lower joint fixed to the end of a lower conduit; the upper joint and the lower joint are coaxially butted together, and a sealing assembly is provided at the butt joint; a first clamping flange is provided on the side of the upper joint away from the lower joint, and a second clamping flange is provided on the outer side of the lower joint; sleeves are also installed on the outer sides of the upper and lower joints, and the cross-section of the sleeve is L-shaped, and the narrow end and the wide end of the sleeve are respectively abutted against the first clamping flange and the second clamping flange; an insulating sleeve is provided between the sleeve and the lower joint, and the cross-section of the insulating sleeve is Z shape, one section of the insulating sleeve is arranged between the second clamping flange and the narrow end of the sleeve, and the other section is arranged between the wide end of the sleeve and the lower joint, and the sleeve restricts the upper joint and the lower joint from radial movement; the first clamping flange and the second clamping flange are both arranged around the outer peripheral wall of the corresponding joint, and the outer diameter of the first clamping flange is adapted to the inner diameter of the narrow end of the sleeve, and the outer diameter of the second clamping flange is adapted to the inner diameter of the wide end of the sleeve, so as to ensure a tight fit between the sleeve and the upper joint and the lower joint.

[0007] By adopting the above technical solution, the coaxial docking of the upper joint and the lower joint and the setting of the sealing assembly at the docking point can realize the connection and effective sealing of the pipeline to prevent medium leakage; the first clamping flange and the second clamping flange cooperate with the L-shaped sleeve, so that the sleeve restricts the upper joint and the lower joint from radial movement, thereby ensuring the stability of the joint structure; the Z-shaped insulating sleeve is set at different positions between the sleeve and the lower joint, which can enhance the insulation performance of the insulating joint; the outer diameters of the first clamping flange and the second clamping flange are respectively adapted to the inner diameters of the narrow end and the wide end of the sleeve, ensuring that the sleeve is closely matched with the upper and lower joints, further improving the sealing and insulation effects.

[0008] Preferably, the sealing assembly includes an insulating gasket and a sealing gasket, a bayonet is opened on the inner side of the sealing gasket, the cross-section of the sealing gasket is concave, the insulating gasket is installed in the bayonet, and the upper joint and the lower joint are respectively abutted against the two sides of the insulating gasket; the thickness of the insulating gasket is greater than the depth of the sealing gasket bayonet, so that when the upper joint and the lower joint abut against the insulating gasket, the sealing gasket can be squeezed and deformed.

[0009] By adopting the above technical solution, the sealing gasket and the insulating gasket realize the sealing of the joint between the upper joint and the lower joint, avoiding medium leakage, reducing resource waste, and reducing the risk of safety accidents; the insulation properties of the insulating gasket are used to improve the insulation performance of the insulating joint, and the sealing gasket is squeezed and deformed when the upper joint and the lower joint abut against the insulating gasket, thereby enhancing the sealing effect.

[0010] Preferably, the wide end of the sleeve completely covers the lower joint and extends toward the downcomer for a certain length, so that a gap is formed between the sleeve and the downcomer, and the gap is filled with epoxy resin.

[0011] By adopting the above technical solution, the wide end of the sleeve covers and extends the lower joint, which can protect the lower joint. Filling the gap formed between the sleeve and the lower conduit with epoxy resin can enhance the sealing and insulation performance of the insulating joint and improve the reliability and service life of the integral insulating joint.

[0012] An auxiliary installation mechanism includes a support base, a screw drive assembly and a docking ring assembly; a support leg is installed at the bottom of the support base, and the docking ring assembly includes a first docking ring and a second docking ring, the first docking ring is used to fix the upper joint and the upper conduit, and the second docking ring is used to fix the lower conduit; the first docking ring and the second docking ring are respectively driven by independent screw drive assemblies to move along the support base; a linear guide groove is provided on the upper surface of the support base, and the screw drive assembly includes a motor, a screw and a threaded block, and the output shaft of the motor is connected to one end of the screw through a coupling.

[0013] By adopting the above technical solution, the support base and the support legs provide stable support for the overall installation, and the independent screw drive assembly drives the first docking ring and the second docking ring to move along the linear guide groove, which can enable the upper conduit and the lower conduit to be precisely docked, thereby improving the installation efficiency of the integral insulating joint, avoiding unstable performance of various components due to inaccurate docking during the installation process, and at the same time reducing damage to sealing and insulating components, thereby ensuring the performance and life of the insulating joint.

[0014] Preferably, the first docking ring and the second docking ring are both composed of two semicircular rings, and a rotating handle is provided at the bottom of the two semicircular rings, and the rotating handle is rotatably mounted on the threaded block.

[0015] By adopting the above technical solution, the first docking ring and the second docking ring are composed of two semicircular rings and a rotating handle is provided at the bottom of the semicircular ring and is rotatably installed on the threaded block. The angle and position of the docking ring can be flexibly adjusted, which facilitates the installation of the upper conduit and the lower conduit into the corresponding docking rings respectively. It can improve the docking efficiency and accuracy of the conduit and the docking ring when installing the integral insulating joint, making the docking operation easier.

[0016] Preferably, the tops of the two semicircular rings can adjust the diameter of the docking ring through the top nuts.

[0017] By adopting the above technical solution and using the butt nut to adjust the diameter of the docking ring, the docking ring can hold the upper and lower conduits more tightly, ensuring the precise docking of the various components of the integral insulating joint during installation.

[0018] Preferably, a first clamping hole is opened inside the first docking ring, and the first clamping hole is set as a stepped hole. The stepped hole includes a first hole section with a larger diameter and a second hole section with a smaller diameter. The first hole section is used to accommodate the first clamping flange of the upper joint, and the second hole section is used to cooperate with the outer wall of the upper conduit, and the inner diameter of the second hole section is adapted to the outer diameter of the upper conduit.

[0019] By adopting the above technical solution, the first clamping hole is set as a stepped hole, the first hole section accommodates the first clamping flange of the upper joint, and the second hole section cooperates with the outer wall of the upper conduit and is adapted to the inner diameter, which can achieve accurate installation and positioning of the upper conduit and the first docking ring, ensuring the position accuracy of the upper conduit and the upper joint during installation, improving the efficiency and accuracy of the subsequent installation of the integral insulating joint, and enabling the auxiliary installation mechanism to better assist in installation.

[0020] Preferably, a second clamping hole is provided inside the second docking ring, and the second clamping hole is configured as a straight hole, the inner diameter of the straight hole being adapted to the outer diameter of the downpipe.

[0021] By adopting the above technical solution, the second clamping hole of the second docking ring is set as a straight hole whose inner diameter is adapted to the outer diameter of the down pipe, so that the down pipe can be accurately installed in the second docking ring, ensuring that the outer wall of the down pipe fits with the inner wall of the second clamping hole, which helps to ensure the accuracy of the installation position of the down pipe during the installation process, thereby ensuring the precise docking of the various components of the insulating joint and improving the stability of the performance of the insulating joint after installation.

[0022] Preferably, a welding groove communicating with the first clamping hole is provided on the outer side of the first docking ring, and the welding groove is annular.

[0023] By adopting the above technical solution, the sleeve and the upper joint of the integral insulating joint can be more conveniently welded together through the welding groove, ensuring the connection stability of the integral insulating joint. At the same time, the annular design facilitates full welding to improve welding quality.

[0024] An installation method comprises the following steps: S1. Install the upper conduit in the first docking ring so that the first clamping flange of the upper connector is clamped into the first hole section of the first clamping hole of the first docking ring, and the outer wall of the upper conduit is in contact with the inner wall of the second hole section of the first clamping hole; S2. After installing the insulating sleeve in the sleeve, insert the assembled sleeve from the end of the lower guide tube away from the lower joint, and push the sleeve to make it close to the lower joint, ensuring that the two ends of the insulating sleeve are accurately located between the second clamping flange and the narrow end of the sleeve, and between the wide end of the sleeve and the lower joint respectively; S3. Install the downpipe after step S2 into the second docking ring so that the side surface of the second docking ring abuts against the wide end of the sleeve and the outer wall of the downpipe fits against the inner wall of the second engaging hole of the second docking ring; S4. Tighten the counter-nuts and rotate the first and second nuts that match each other to bring the two semicircular rings closer to each other, so that the docking rings tightly embrace the upper and lower conduits; S5. Install the insulating gasket in the bayonet, and then install the sealing gasket inside the sleeve, ensuring that the insulating gasket is completely located in the bayonet of the sealing gasket. S6. Start the screw drive assembly. The motor drives the screw to rotate through the coupling, causing the threaded block in the screw drive assembly to move along the linear guide rail, thereby driving the first docking ring and the second docking ring to move, docking the upper and lower conduits, and squeezing the sealing gasket and the insulating gasket between the upper and lower joints. S7: Slippage occurs between the second docking ring and the lower conduit, causing the second docking ring to push the sleeve and the upper joint tightly. During this process, the resistance experienced by the second docking ring is greater than the friction between the lower conduit and the second docking ring. S8. Weld the sleeve and the upper joint together through the welding groove, and use appropriate welding technology to ensure welding quality; S9. Remove the second docking ring and apply epoxy resin in the gap between the sleeve and the downcomer. After the epoxy resin is cured, the installation of the integral insulating joint is completed.

[0025] By adopting the above technical solution, the installation method uses an auxiliary installation mechanism to achieve precise docking of the upper conduit and the lower conduit, which is convenient for the installation of the upper joint and the lower joint; during the installation process, it can ensure that the sealing component and the insulating sleeve are correctly installed, ensuring good sealing and insulation performance of the insulating joint; the butt nut is used to make the docking ring tightly embrace the conduit to prevent the conduit from shifting during installation; the screw drive assembly drives the docking ring to move to complete the conduit docking and component extrusion, thereby improving installation efficiency; the welding groove facilitates the welding of the sleeve and the upper joint, ensuring the welding quality; finally, epoxy resin is applied to enhance the overall performance of the insulating joint, extend its service life, and solve the problems of complex installation operation, low installation efficiency and easily damaged components of traditional insulating joints.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. A sealing component is set between the upper joint and the lower joint to effectively prevent medium leakage, avoid resource waste and safety accidents; 2. A Z-shaped insulating sleeve is set between the sleeve and the lower joint to enhance the insulation performance of the insulating joint and meet the long-term insulation requirements of the pipeline system; 3. The auxiliary installation mechanism can ensure the precise docking of the various components of the insulating joint, improve the installation efficiency and the performance stability of the insulating joint after installation, while reducing the damage to the sealing and insulating components during the installation process and extending the service life of the insulating joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional view of the integral insulating head; Figure 2 and Figure 3 It is a cross-sectional view of an integral insulating head; Figure 4 It is a three-dimensional view of the auxiliary mounting mechanism; Figure 5 2. This is a schematic diagram of the specific structure of the first docking ring and the second docking ring; Figure 6 It is a cross-sectional view of the auxiliary mounting mechanism.

[0028] Explanation of the accompanying drawings: 11. upper conduit; 111. upper joint; 112. first clamping flange; 12. lower conduit; 121. lower joint; 122. second clamping flange; 13. sleeve; 131. narrow end; 132. wide end; 14. insulating sleeve; 15. epoxy resin; 16. insulating gasket; 17. sealing gasket; 171. bayonet; 21. support base; 211. support foot; 212. linear guide groove; 31. motor; 32. screw rod; 33. threaded block; 41. first docking ring; 411. first clamping hole; 413. first hole section; 414. second hole section; 412. welding groove; 42. second docking ring; 421. second clamping hole; 43. turning handle; 44. top nut. DETAILED DESCRIPTION

[0029] The present application is further described in detail below with reference to the accompanying drawings.

[0030] In the description of the invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the invention.

[0031] Example 1 The integral insulating joint provided in the embodiment of the present application is Figure 1-3, including an upper joint 111, a lower joint 121, a sealing assembly, a sleeve 13, and an insulating sleeve 14. The upper joint 111 is fixed to the end of the upper conduit 11, and the lower joint 121 is fixed to the end of the lower conduit 12. The upper joint 111 and the lower joint 121 are coaxially connected. A sealing assembly is provided at the connection point to prevent medium leakage. The sleeve 13 is installed on the outside of the upper joint 111 and the lower joint 121, and the narrow end 131 and the wide end 132 of the sleeve 13 are respectively abutted against the first clamping flange 112 and the second clamping flange 122. The sleeve 13 restricts the upper joint 111 and the lower joint 121 from radial movement. At the same time, the insulating sleeve 14 is provided between the sleeve 13 and the lower joint 121 to improve the sealing and insulation performance of the insulating joint. The sealing assembly can effectively prevent the leakage of the medium. The cooperation between the sleeve 13 and the clamping flange ensures structural stability, and the insulating sleeve 14 enhances the insulation performance. The upper joint 111 includes a main body and a first snap-fit ​​flange 112, and the main body is a tubular structure. The first snap-fit ​​flange 112 is arranged around the outer peripheral wall of the main body of the upper joint 111, and its outer diameter is adapted to the inner diameter of the narrow end 131 of the sleeve 13, so that the sleeve 13 can fit tightly with the upper joint 111. The first snap-fit ​​flange 112 is molded with the main body at one time by casting, ensuring the integrity of the snap-fit ​​flange and the main body. The lower joint 121 includes a main body and a second snap-fit ​​flange 122. Similarly, the main body is also a tubular structure. The second snap-fit ​​flange 122 is arranged around the outer peripheral wall of the lower joint 121, and its outer diameter is adapted to the inner diameter of the wide end 132 of the sleeve 13 to achieve a tight fit with the sleeve 13.

[0032] The sealing assembly includes an insulating gasket 16 and a sealing gasket 17. A recess 171 with a concave cross-section is defined within the sealing gasket 17. The insulating gasket 16 is installed within the recess 171. The thickness of the insulating gasket 16 is greater than the depth of the recess 171. During installation, the upper connector 111 and the lower connector 121 abut against the insulating gasket 16, squeezing and deforming the sealing gasket 17 and enhancing the sealing effect. When the pressure of the medium in the pipeline increases, the squeezed and deformed sealing gasket 17 can better fill the gap and prevent leakage.

[0033] The sleeve 13 has an L-shaped cross-section, with its narrow end 131 and wide end 132 respectively abutting against the first and second engaging flanges 112, 122, restricting radial movement of the upper and lower connectors 111, 121. The insulating sleeve 14 has a Z-shaped cross-section, with one section disposed between the second engaging flange 122 and the narrow end 131 of the sleeve 13, and the other section disposed between the wide end 132 of the sleeve 13 and the lower connector 121, providing insulation.

[0034] The implementation principle of this embodiment is as follows: the integrated insulating joint effectively improves the sealing and insulation performance of the insulating joint through reasonable structural design, using components such as the sealing assembly, sleeve 13 and insulating sleeve 14. The special design of the sealing assembly enables it to better play a sealing role when under pressure to prevent medium leakage. The cooperation between the sleeve 13 and the snap-on flange ensures the stability of the joint structure and avoids radial displacement. The insulating sleeve 14 effectively isolates the upper joint 111 and the lower joint 121 to prevent current conduction. Compared with traditional insulating joints, the insulating joint of this embodiment has more reliable performance, is more convenient to install and maintain, and greatly improves the safety and stability of the pipeline system.

[0035] Example 2 The auxiliary installation mechanism provided in the embodiment of the present application refers to Figure 4-6 , including a support base 21, a screw rod 32 drive assembly and a docking ring assembly, wherein a support leg 211 is installed at the bottom of the support base 21, which can provide stable support for the entire mechanism. The docking ring assembly includes a first docking ring 41 and a second docking ring 42, which are used to fix the upper joint 111 and the upper and lower conduits 11 and 12 respectively. The screw rod 32 drive assembly can drive the first docking ring 41 and the second docking ring 42 to move along the support base 21, so as to achieve precise docking of the upper and lower conduits 11 and 12, thereby achieving the beneficial effect of improving the installation efficiency and installation accuracy of the insulating joint. The support leg 211 ensures the stability of the mechanism, the screw rod 32 drive assembly can accurately control the movement of the docking ring, and the docking ring assembly can firmly fix the conduit. The support base 21 is a plate-like structure and can withstand a large weight. The support legs 211 are installed at the four corners of the bottom of the support base 21. The screw rod 32 drive assembly includes a motor 31, a screw rod 32 and a threaded block 33. The output shaft of the motor 31 is connected to one end of the screw rod 32 through a coupling. When the screw rod 32 rotates, the threaded block 33 moves axially along the screw rod 32.

[0036] The docking ring assembly includes a first docking ring 41 and a second docking ring 42, each consisting of two semicircular rings. A handle 43 is provided at the bottom of the semicircular ring, which is rotatably mounted on the threaded block 33. This allows the semicircular ring to rotate around the handle 43, facilitating the installation and removal of the catheter. A first engaging hole 411 is defined within the first docking ring 41. This first engaging hole 411 is configured as a stepped hole, comprising a first hole section 413 with a larger diameter and a second hole section 414 with a smaller diameter. The first hole section 413 is configured to accommodate the first engaging flange 112 of the upper connector 111, while the second hole section 414 is configured to engage the outer wall of the upper catheter 11. A second engaging hole 421 is defined within the second docking ring 42. This second engaging hole 421 is configured as a straight hole, the inner diameter of which matches the outer diameter of the lower catheter 12. The tops of the two semicircular rings are nutted with a countersunk nut 44 to adjust the diameter of the docking rings. When the countersunk nut 44 is tightened, the two semicircular rings move closer together, thereby clamping the catheter.

[0037] The working principle of this embodiment is as follows: This auxiliary installation mechanism achieves efficient and precise installation of the insulating joint through the coordinated operation of various components. The support base 21 and support legs 211 provide a stable working platform. The screw 32 drive assembly precisely controls the movement of the docking ring, which securely secures the conduit and facilitates adjustment. Compared to traditional manual installation methods, this mechanism significantly improves installation efficiency and accuracy, reduces human error, and eases installation difficulty. It also better protects the sealing and insulating components of the insulating joint, extending the service life of the insulating joint.

[0038] Example 3 The installation method provided in the embodiment of the present application includes the following steps: S1. Install the upper conduit 11 within the first docking ring 41, ensuring that the first engaging flange 112 of the upper connector 111 engages with the first hole section 413 of the first engaging hole 411 of the first docking ring 41. The outer wall of the upper conduit 11 abuts against the inner wall of the second hole section 414 of the first engaging hole 411. To ensure that the upper conduit 11 is properly installed, use a measuring tool to check the installation accuracy of the upper conduit 11 and the first docking ring 41.

[0039] S2. After installing the insulating sleeve 14 in the sleeve 13, insert the assembled sleeve 13 from the end of the lower guide tube 12 away from the lower joint 121, and push the sleeve 13 to make it tight against the lower joint 121, ensuring that the two ends of the insulating sleeve 14 are accurately located between the second clamping flange 122 and the narrow end 131 of the sleeve 13, and between the wide end 132 of the sleeve 13 and the lower joint 121.

[0040] S3. Install the downconduit 12 after step S2 into the second docking ring 42, ensuring that the side surface of the second docking ring 42 abuts against the wide end 132 of the sleeve 13 and that the outer wall of the downconduit 12 fits against the inner wall of the second engaging hole 421 of the second docking ring 42. Ensure concentricity between the downconduit 12 and the second docking ring 42 during installation.

[0041] S4. Tighten the counter-nut 44. By rotating the first nut and the second nut that match each other, the two semicircular rings are brought closer to each other, so that the docking ring tightly embraces the upper conduit 11 and the lower conduit 12.

[0042] S5. Install the insulating gasket 16 in the bayonet 171, and then install the sealing gasket 17 inside the sleeve 13, ensuring that the insulating gasket 16 is completely located in the bayonet 171 of the sealing gasket 17. During installation, be sure to clean the sealing gasket 17 and the insulating gasket 16 to prevent impurities from affecting the sealing performance.

[0043] S6. Start the screw rod 32 drive assembly, and the motor 31 drives the screw rod 32 to rotate through the coupling, so that the threaded block 33 in the screw rod 32 drive assembly moves along the linear guide rail, and then drives the first docking ring 41 and the second docking ring 42 to move, so that the upper conduit 11 and the lower conduit 12 are docked, and the sealing gasket 17 and the insulating gasket 16 are squeezed between the upper joint 111 and the lower joint 121.

[0044] S7. Slippage occurs between the second docking ring 42 and the lower tube 12, causing the second docking ring 42 to push the sleeve 13 and the upper joint 111 tightly. During this process, the resistance encountered by the second docking ring 42 is greater than the friction between the lower tube 12 and the second docking ring 42.

[0045] S8. Weld the sleeve 13 and the upper joint 111 together through the welding groove 412. Use appropriate welding technology to ensure welding quality.

[0046] S9. Remove the second docking ring 42, apply epoxy resin 15 in the gap between the sleeve 13 and the downpipe 12, and complete the installation of the integral insulating joint after the epoxy resin 15 is cured.

[0047] The principle behind this embodiment is that this installation method, through a series of sequential steps and utilizing an auxiliary installation mechanism, achieves precise installation of a monolithic insulating joint. From conduit installation and insulation component assembly to final welding and sealing, this method ensures the quality of the insulating joint. Compared to traditional installation methods, this method improves installation efficiency and accuracy, reduces damage to the insulating joint during installation, and also ensures the sealing and insulation performance of the insulating joint.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An integral insulating joint, characterized in that: It comprises an upper joint (111) fixed at the end of an upper conduit (11) and a lower joint (121) fixed at the end of a lower conduit (12); The upper joint (111) and the lower joint (121) are coaxially butted against each other, and a sealing assembly is provided at the butt joint; A first clamping flange (112) is provided on a side of the upper joint (111) away from the lower joint (121), and a second clamping flange (122) is provided on the outer side of the lower joint (121). A sleeve (13) is also installed on the outer sides of the upper joint (111) and the lower joint (121), and the cross-section of the sleeve (13) is L-shaped. The narrow end (131) and the wide end (132) of the sleeve (13) are respectively in contact with the first clamping flange (112) and the second clamping flange (122). An insulating sleeve (14) is provided between the sleeve (13) and the lower joint (121). The cross-sectional shape of the insulating sleeve (14) is Z-shaped. One section of the insulating sleeve (14) is provided between the second clamping flange (122) and the narrow end (131) of the sleeve (13), and the other section is provided between the wide end (132) of the sleeve (13) and the lower joint (121). The sleeve (13) restricts the upper joint (111) and the lower joint (121) from being radially The first clamping flange (112) and the second clamping flange (122) are both arranged around the outer peripheral wall of the corresponding joint, and the outer diameter of the first clamping flange (112) is adapted to the inner diameter of the narrow end (131) of the sleeve (13), and the outer diameter of the second clamping flange (122) is adapted to the inner diameter of the wide end (132) of the sleeve (13), so as to ensure a tight fit between the sleeve (13) and the upper joint (111) and the lower joint (121).

2. The integral insulating joint according to claim 1, characterized in that: The sealing assembly comprises an insulating gasket (16) and a sealing gasket (17). A bayonet (171) is provided on the inner side of the sealing gasket (17). The cross section of the sealing gasket (17) is concave. The insulating gasket (16) is installed in the bayonet (171). The upper joint (111) and the lower joint (121) respectively abut against two sides of the insulating gasket (16). The thickness of the insulating gasket (16) is greater than the depth of the bayonet (171) of the sealing gasket (17). When the upper joint (111) and the lower joint (121) abut against the insulating gasket (16), the sealing gasket (17) can be squeezed and deformed.

3. The integral insulating joint according to claim 2, characterized in that: The wide end portion (132) of the sleeve (13) completely covers the lower joint (121) and extends a certain length toward the lower conduit (12), so that a gap is formed between the sleeve (13) and the lower conduit (12), and the gap is filled with epoxy resin (15).

4. An auxiliary installation mechanism, characterized in that: Used for installing the integral insulating joint according to any one of claims 1 to 3, comprising a support base (21), a screw rod (32) drive assembly and a docking ring assembly; A support leg (211) is installed at the bottom of the support base (21), and the docking ring assembly includes a first docking ring (41) and a second docking ring (42), wherein the first docking ring (41) is used to fix the upper joint (111) and the upper conduit (11), and the second docking ring (42) is used to fix the lower conduit (12); The first docking ring (41) and the second docking ring (42) are respectively driven by independent screw rod (32) drive assemblies to move along the support base (21); a linear guide groove (212) is provided on the upper surface of the support base (21); the screw rod (32) drive assembly comprises a motor (31), a screw rod (32) and a threaded block (33); the output shaft of the motor (31) is connected to one end of the screw rod (32) through a coupling.

5. The auxiliary installation mechanism according to claim 4, characterized in that: The first docking ring (41) and the second docking ring (42) are both composed of two semicircular rings. A rotating handle (43) is provided at the bottom of the two semicircular rings. The rotating handle (43) is rotatably mounted on the threaded block (33).

6. The auxiliary installation mechanism according to claim 5, characterized in that: The tops of the two semicircular rings are connected by nut (44) to adjust the diameter of the butt-jointed ring.

7. The auxiliary installation mechanism according to claim 5, characterized in that: A first snap-fitting hole (411) is provided inside the first docking ring (41), and the first snap-fitting hole (411) is configured as a stepped hole. The stepped hole comprises a first hole section (413) with a larger diameter and a second hole section (414) with a smaller diameter. The first hole section (413) is used to accommodate a first snap-fitting flange (112) of the upper joint (111), and the second hole section (414) is used to cooperate with the outer wall of the upper conduit (11), and the inner diameter of the second hole section (414) is adapted to the outer diameter of the upper conduit (11).

8. The auxiliary installation mechanism according to claim 5, characterized in that: A second clamping hole (421) is provided inside the second docking ring (42), and the second clamping hole (421) is configured as a straight hole, the inner diameter of which is adapted to the outer diameter of the lower conduit (12).

9. The auxiliary installation mechanism according to claim 7, characterized in that: A welding groove (412) communicating with the first clamping hole (411) is provided on the outer side of the first docking ring (41), and the welding groove (412) is annular.

10. An installation method, characterized in that: The auxiliary installation mechanism according to any one of claims 4 to 9 is characterized in that it includes the following steps: S1. Install the upper conduit (11) in the first docking ring (41), so that the first clamping flange (112) of the upper joint (111) is clamped into the first hole section (413) of the first clamping hole (411) of the first docking ring (41), and the outer wall of the upper conduit (11) is in contact with the inner wall of the second hole section (414) of the first clamping hole (411); S2. After installing the insulating sleeve (14) in the sleeve (13), insert the assembled sleeve (13) from the end of the lower guide tube (12) away from the lower joint (121), and push the sleeve (13) to make it tightly against the lower joint (121), ensuring that the two sections of the insulating sleeve (14) are accurately located between the second clamping flange (122) and the narrow end (131) of the sleeve (13), and between the wide end (132) of the sleeve (13) and the lower joint (121); S3. Install the lower conduit (12) after completing step S2 in the second docking ring (42), so that the side surface of the second docking ring (42) abuts against the wide end (132) of the sleeve (13), and the outer wall of the lower conduit (12) fits against the inner wall of the second clamping hole (421) of the second docking ring (42); S4, tightening the top nut (44), and by rotating the first nut and the second nut that match each other, the two semicircular rings are brought closer to each other, so that the docking ring tightly embraces the upper conduit (11) and the lower conduit (12); S5. Install the insulating gasket (16) in the bayonet (171), and install the sealing gasket (17) after installing the insulating gasket (16) inside the sleeve (13), ensuring that the insulating gasket (16) is completely located in the bayonet (171) of the sealing gasket (17); S6. Start the screw rod (32) drive assembly, and the motor (31) drives the screw rod (32) to rotate through the coupling, so that the threaded block (33) in the screw rod (32) drive assembly moves along the linear guide rail, thereby driving the first docking ring (41) and the second docking ring (42) to move, so that the upper conduit (11) and the lower conduit (12) are docked, and the sealing gasket (17) and the insulating gasket (16) are squeezed between the upper joint (111) and the lower joint (121); S7, the second docking ring (42) and the lower conduit (12) slip, causing the second docking ring (42) to push the sleeve (13) and the upper joint (111) into contact with each other. During this process, the resistance experienced by the second docking ring (42) is greater than the friction force between the lower conduit (12) and the second docking ring (42); S8. Welding the sleeve (13) and the upper joint (111) together through the welding groove (412), using a suitable welding process to ensure welding quality; S9. Remove the second docking ring (42), apply epoxy resin (15) in the gap between the sleeve (13) and the lower conduit (12), and complete the installation of the integral insulating joint after the epoxy resin (15) is cured.

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