An installation device and a pipe sealing device

Abstract

This application discloses an installation device and a pipeline leak-sealing device, relating to the field of pipeline leak-sealing technology, to at least address the safety hazards posed by maintenance personnel during sealing operations in environments with leaks of hazardous gases or liquids. The installation device includes a power component and a clamping component. The power component drives multiple leak-sealing parts to switch between an open and closed state. The clamping component applies a clamping force towards the receiving orifice to the multiple leak-sealing parts when they are in the closed state. When a pipeline leaks, the power component causes the multiple leak-sealing parts to enclose the leak, and then the clamping component ensures a tight seal between the leak-sealing parts and the pipeline. In this process, the power component controls the switching of the leak-sealing parts between the open and closed states, eliminating the need for maintenance personnel to manually operate the leak-sealing parts or apply pressure in hazardous environments, thereby reducing safety hazards.

Description

Technical Field

[0001] This application relates to the field of pipeline sealing technology, and in particular to an installation device and a pipeline sealing device. Background Technology

[0002] When a pipeline transporting hazardous gases or liquids leaks, it is inconvenient to stop transport due to reasons such as industrial production and energy supply security. Therefore, it is necessary to temporarily seal and repair the leaking part of the pipeline.

[0003] In existing technologies, leaks in pipelines are sealed by maintenance personnel operating at close range.

[0004] However, in the existing technology, there are safety hazards when maintenance personnel perform sealing operations in environments where hazardous gases or liquids are leaking. Summary of the Invention

[0005] The purpose of this application is to provide an installation device and a pipeline sealing device to at least solve the problem of safety hazards for maintenance personnel when sealing operations are carried out in environments with hazardous gas or liquid leaks.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] In a first aspect, this application provides an installation device for installing a leak-sealing assembly. The leak-sealing assembly includes multiple leak-sealing portions that enclose a receiving hole for accommodating a pipe. The installation device includes a power assembly and a clamping assembly. The power assembly is connected to the leak-sealing assembly and is used to drive the multiple leak-sealing portions to switch between an open state and a closed state. The clamping assembly is connected to the leak-sealing assembly and is used to apply a clamping force towards the receiving hole to the multiple leak-sealing portions when they are in the closed state.

[0008] When a pipeline leak occurs, the installation device is transported to the leak location. A power unit opens multiple plugging sections, allowing the pipeline to be accommodated within the plugging section's receiving holes. The power unit then remotely controls the plugging sections to switch from the open to the closed state, effectively sealing the leak. A clamping component then applies pressure towards the receiving holes to the multiple plugging sections, ensuring a tight seal between the plugging sections and the pipeline, thus automating the leak-sealing process. Throughout this process, the power unit controls the plugging sections to switch between open and closed states, eliminating the need for manual operation or pressure application by maintenance personnel in hazardous environments, thereby reducing safety hazards.

[0009] In one possible implementation, the plurality of sealing portions include a first sealing portion and a second sealing portion. The first and second sealing portions form a receiving hole. A power assembly is connected to both the first and second sealing portions, and the power assembly is used to drive the first and second sealing portions to move towards or away from each other, so as to switch between an open state and a closed state.

[0010] In one possible implementation, a pre-tightening hole is provided through the first and second plugs along their respective orientations. The tightening assembly includes a bolt and a nut. The bolt passes through the pre-tightening hole from the side of one of the first and second plugs away from the other, and the bolt head diameter is larger than the diameter of the pre-tightening hole along its radial direction. The nut is located on the other side of the first and second plugs and is threadedly connected to the bolt. When the first and second plugs are in the closed state, the bolt and nut cooperate to apply a pre-tightening force towards each other.

[0011] In one possible implementation, the clamping assembly includes a nut drive device. The nut drive device is located on one side of the first and second sealing parts and is connected to the other of the first and second sealing parts. The nut drive device is used to drive the nut to rotate.

[0012] In one possible implementation, the clamping assembly includes a bolt tensioner. The bolt tensioner is located on one side of one of the first and second plugging portions, and is connected to one of the first and second plugging portions. The bolt tensioner can drive the bolt to reciprocate axially along the pre-tightening hole.

[0013] In one possible implementation, the power assembly includes an opening / closing screw and a rotary drive. The opening / closing screw comprises a first screw section and a second screw section, the helical direction of the first screw section being opposite to that of the second screw section. A first plugging part is threadedly connected to the first screw section, and a second plugging part is threadedly connected to the second screw section. The rotary drive is used to drive the opening / closing screw to rotate.

[0014] In one possible implementation, the installation device further includes a guide structure. The first and second plugging parts are slidably connected to the guide structure, and when the power component drives the first and second plugging parts to move toward or away from each other, the first and second plugging parts slide along the guide structure.

[0015] Secondly, a pipe sealing device is provided, comprising a sealing component and an installation device provided in any possible embodiment of the first aspect. The sealing component includes multiple sealing parts that enclose a receiving hole for accommodating a pipe. The installation device is connected to the sealing component and drives the multiple sealing parts to switch between an open state and a closed state.

[0016] In one possible implementation, the surface of the sealing component facing the receiving hole is the contact surface, and when the sealing component is in the closed state, the contact surface is adapted to form a sealing connection with the pipe.

[0017] In one possible implementation, multiple plugging parts form an overflow cavity, which is located on the side of the contact surface away from the receiving hole and is arranged along the circumference of the receiving hole. The overflow cavity is connected to the receiving hole.

[0018] In one possible implementation, along the axial direction of the receiving hole, the contact surface includes two spaced-apart sealing surfaces and a spacer surface located between the two sealing surfaces. Both sealing surfaces are adapted to form a sealing connection with the pipe. The spacer surface is located on the side of the sealing surfaces opposite to the receiving hole, and connects to the two sealing surfaces. The spacer surface and the two sealing surfaces form an overflow cavity. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a pipe sealing device provided in one embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the power component of a pipe sealing device provided in one embodiment of this application.

[0022] Figure label:

[0023] 100 - Installation device; 200 - Pipe sealing device;

[0024] 1-Leak-sealing assembly; 11-Leak-sealing part; 111-Pre-tightening hole; 12-Accommodation hole; 13-First leak-sealing part; 14-Second leak-sealing part; 15-Contact surface; 151-Sealing surface; 152-Gap surface; 16-Overflow cavity;

[0025] 2-Power assembly; 21-Opening / closing lead screw; 22-Rotary drive component;

[0026] 3-Clamping assembly; 31-Bolt; 32-Nut; 33-Nut drive device; 34-Bolt tensioner; 4-Guide structure. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in practical applications, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0032] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0033] like Figure 1 As shown, this application provides a pipe sealing device 200, which includes a sealing component 1 and an installation device 100.

[0034] The leak-sealing component 1 is used to seal leaks in a pipeline. In some embodiments, the leak-sealing component 1 may include a plurality of leak-sealing parts 11 that surround a receiving hole 12, the receiving hole 12 is used to receive the pipeline to be sealed, and the leak-sealing parts 11 are used to seal the leak in the pipeline.

[0035] It should be noted that the inner diameter of the receiving hole 12 can be less than or equal to the outer diameter of the leaking pipe, and the shape of the receiving hole 12 matches the shape of the leaking pipe so that the leak-sealing part 11 can be used to seal the pipe leak.

[0036] This application also provides an installation device 100. The installation device 100 is connected to the leak-sealing assembly 1 and drives a plurality of leak-sealing parts 11 to switch between an open state and a closed state.

[0037] When the multiple sealing parts 11 are in the open state, they are open to allow the leaking pipe to enter the receiving hole 12 through the gaps between the multiple sealing parts 11, or to exit through the receiving hole 12, thereby enabling the installation and removal of the multiple sealing parts 11 on the pipe. When the multiple sealing parts 11 are in the closed state, they are tightly fitted to the leaking pipe to seal the pipe leak.

[0038] The mounting device 100 includes a power assembly 2 and a clamping assembly 3.

[0039] The power component 2 is connected to the leak-sealing component 1, and the power component 2 is used to drive multiple leak-sealing parts 11 to switch between open and closed states.

[0040] The clamping assembly 3 is connected to the leak-sealing assembly 1. The clamping assembly 3 is used to apply a clamping force toward the receiving hole 12 to the multiple leak-sealing parts 11 when the multiple leak-sealing parts 11 are in the closed state, so as to seal the pipe leak.

[0041] When multiple plugging parts 11 are in a closed state, although the pipe is enclosed, some minor gaps may still exist, resulting in poor sealing. The clamping assembly 3 applies a clamping force towards the receiving hole 12, making the plugging parts 11 fit more tightly against the pipe surface, filling these gaps, preventing dangerous gases or liquids from leaking from the gaps, thereby improving the sealing effect of the plugging.

[0042] In summary, the power assembly 2 opens multiple sealing sections 11, allowing the pipe to be accommodated in the receiving hole 12 of the sealing assembly 1. Then, the power assembly 2 remotely controls the sealing sections 11 to switch from the open to the closed state, enclosing the pipe leak. Finally, the clamping assembly 3 applies a clamping force towards the receiving hole 12 to the multiple sealing sections 11, ensuring a tight seal between the sealing sections 11 and the pipe, thus achieving automated leak sealing.

[0043] During the above process, the power component 2 controls the leak-sealing part 11 to switch between the open and closed states, eliminating the need for maintenance personnel to manually operate the leak-sealing part 11 in hazardous environments, and also eliminating the need for maintenance personnel to apply pressure in hazardous environments, thereby reducing safety hazards.

[0044] The embodiments of this application are described in detail below with reference to the accompanying drawings, and the application scenarios of the embodiments of this application are first introduced before the detailed description of the embodiments of this application.

[0045] The pipeline sealing device 200 provided in this application is used in the fields of petrochemicals, municipal engineering, power industry, marine engineering, and metallurgy.

[0046] Specifically, in the petrochemical field, the pipeline plugging device 200 provided in this application is used in crude oil extraction and transportation, and can also be used in pipelines transporting chemical raw materials (corrosive or toxic liquids or gases such as sulfuric acid, caustic soda, and benzene), and can also be used in pipelines transporting natural gas.

[0047] In the field of municipal engineering, the pipe sealing device 200 provided in this application can be used for tap water transport pipelines, sewage transport pipelines, heating pipelines, etc.

[0048] In the power industry, the pipe sealing device 200 provided in this application can be used for circulating water pipes, fuel oil pipes, etc.

[0049] In the metallurgical field, the pipeline sealing device 200 provided in this application can be used in pipelines for transporting various gases (oxygen, carbon monoxide, coal gas, etc.).

[0050] It should be noted that in one usage scenario, due to reasons such as industrial production and energy supply security, it is inconvenient to stop transportation, so it is necessary to temporarily seal and repair the pipeline leak.

[0051] The pipeline sealing device 200 provided in this application can temporarily seal the leak point, allowing pipeline maintenance to be postponed to subsequent shutdown and repair processes, thus ensuring the continuity of transportation operations.

[0052] During shutdown and maintenance, the leak-sealing component 1 can be switched from the closed state to the open state to remove the pipe leak-sealing device 200, and then the leaking pipe can be finely repaired. Fine repair includes, but is not limited to, replacing the pipe or welding a new pipe.

[0053] In one possible implementation, see [link to previous document]. Figure 1 The plurality of plugging parts 11 may include a first plugging part 13 and a second plugging part 14. The first plugging part 13 and the second plugging part 14 form a receiving hole 12. The power assembly 2 is connected to both the first plugging part 13 and the second plugging part 14. The power assembly 2 is used to drive the first plugging part 13 and the second plugging part 14 to move toward each other or away from each other, so as to switch between an open state and a closed state.

[0054] When a pipe needs to be placed into the receiving hole 12, the power assembly 2 applies a force to the first sealing part 13 and the second sealing part 14, driving the first sealing part 13 and the second sealing part 14 to move in a direction away from each other. This increases the distance between the first sealing part 13 and the second sealing part 14, making the opening of the receiving hole 12 larger, thereby enabling the pipe to be accommodated into the receiving hole 12.

[0055] After the pipe is placed in position, the power component 2 applies a reverse force, causing the first plugging part 13 and the second plugging part 14 to move closer to each other. As they gradually approach each other, they eventually form a complete receiving hole 12, enclosing the pipe leak within it, thus achieving the initial positioning and enclosure of the pipe.

[0056] The opening and closing states are switched by driving the first plugging part 13 and the second plugging part 14 to move through the power component 2. The operation is simple and direct, without the need for tedious manual splicing or adjustment, which improves the efficiency of the plugging operation. It can complete the enclosure of the pipeline in a short time and quickly deal with pipeline leakage problems.

[0057] Since the power unit 2 can remotely control the movement of the first plugging part 13 and the second plugging part 14, maintenance personnel do not need to manually operate the plugging part 11 in a hazardous environment, which reduces the time and risk of personnel being exposed to hazardous environments, thereby improving the safety of maintenance personnel and reducing safety hazards.

[0058] For example, the power component 2 can be a hydraulic power component, a pneumatic power component, an electric power component, or a fuel-powered power component.

[0059] In one possible implementation, see Figure 1 and Figure 2 As shown, the power assembly 2 includes an opening / closing lead screw 21 and a rotary drive 22. The opening / closing lead screw 21 includes a first lead screw section and a second lead screw section. The helical direction of the thread in the first lead screw section is opposite to that in the second lead screw section. A first plugging part 13 is threadedly connected to the first lead screw section, and a second plugging part 14 is threadedly connected to the second lead screw section. The rotary drive 22 drives the opening / closing lead screw 21 to rotate.

[0060] When it is necessary to switch the leak-sealing assembly 1 from the closed state to the open state so that the pipe can be placed into the receiving hole 12, the rotary drive 22 is activated. During the rotation of the opening and closing screw 21, the first leak-sealing part 13 and the second leak-sealing part 14 move away from each other along the screw axis. As they move, the distance between them gradually increases, and the opening of the receiving hole 12 becomes larger until it reaches a suitable size to facilitate the placement of the leaking pipe into the receiving hole 12.

[0061] After the pipe is placed into the receiving hole 12, the leak-sealing assembly 1 needs to be switched to the closed state to seal the leak in the pipe. At this time, the rotary drive 22 drives the opening and closing screw 21 to rotate in the opposite direction. The first leak-sealing part 13 and the second leak-sealing part 14 will move closer to each other along the axial direction of the screw. They gradually approach each other and finally form a complete receiving hole 12, thereby clamping the leaking pipe.

[0062] After the temporary leak sealing is completed, the pipeline is closed, and the installation device 100 is removed by switching the leak sealing component 1 from the closed state to the open state, and then the leaking pipeline is finely sealed.

[0063] The opening and closing screw 21 enables the first sealing part 13 and the second sealing part 14 to move synchronously. When the opening and closing screw 21 rotates, the two sealing parts 11 will move simultaneously and at the same speed in the direction away from or towards each other, which improves the symmetry and uniformity of the receiving hole 12 and reduces the problem of poor sealing caused by the asynchronous movement of the two sealing parts 11.

[0064] In one possible implementation, the power assembly 2 can be operated remotely. For example, the installation device 100 also includes an operating console connected to the power assembly 2, and the connection method includes, but is not limited to, wired connection and wireless communication connection.

[0065] When the power assembly 2 operates hydraulically, the control panel may include a hydraulic station, a switch for controlling the hydraulic flow, and a switch for controlling the hydraulic pressure. The hydraulic station is connected to the power assembly 2 via piping and is connected to the hydraulic station before the installation of the multiple sealing parts 11.

[0066] This allows maintenance personnel to operate the installation device remotely. It eliminates the need to expose maintenance personnel to hazardous leakage environments, thus reducing safety risks.

[0067] In one possible implementation, see [link to previous document]. Figure 1 A pre-tightening hole 111 is provided through the first and second plugging parts 13 and 14 along their respective orientations. The clamping assembly 3 includes a bolt 31 and a nut 32. The bolt 31 passes through the pre-tightening hole 111 from the side of one of the first and second plugging parts 13 away from the other, and the head diameter of the bolt 31 is larger than the diameter of the pre-tightening hole 111 along the radial direction of the pre-tightening hole 111.

[0068] Nut 32 is located on one side of the first sealing part 13 and the second sealing part 14, and is threadedly connected to bolt 31. When the first sealing part 13 and the second sealing part 14 are in the closed state, bolt 31 and nut 32 cooperate to apply a preload force to the first sealing part 13 and the second sealing part 14 toward each other.

[0069] When the first plugging part 13 and the second plugging part 14 move to the closed state under the action of the power assembly 2, so that they surround the receiving hole 12 and enclose the pipe, the bolt 31 is inserted into the pre-tightening hole 111 from the side of one of the first plugging part 13 and the second plugging part 14 away from the other. Since the diameter of the bolt head 31 is larger than the diameter of the pre-tightening hole 111 along the radial direction of the pre-tightening hole 111, the bolt head 31 will be stuck on that side, preventing the bolt 31 from passing through completely.

[0070] Then, on one side of the first sealing part 13 and the second sealing part 14, the nut 32 is screwed onto the bolt 31, at which point the nut 32 and the bolt 31 begin to form a threaded connection. The nut 32 is then tightened further. As the nut 32 continues to screw into the bolt 31, the threaded engagement between the nut 32 and the bolt 31 generates a tensile force along the axial direction of the bolt 31. This tensile force causes the first sealing part 13 and the second sealing part 14 to experience a force towards each other, i.e., a preload.

[0071] By continuously tightening the nut 32, the preload can be adjusted as needed, so that the first plugging part 13 and the second plugging part 14 fit tightly against the pipe surface, thereby achieving effective sealing of the pipe.

[0072] For example, the bolt 31 can be inserted into the pre-tightening hole 111 from the side of the first plugging part 13 or from the side of the second plugging part 14.

[0073] By applying pre-tightening force through the cooperation of bolts 31 and nuts 32, the first plugging part 13 and the second plugging part 14 can fit more tightly against the pipe surface, reducing or even eliminating the gaps between the two and the pipe and between them, thereby improving the sealing performance of the plugging device and ensuring that media leakage can be prevented even when the pipe is under pressure.

[0074] Preload is applied by the cooperation of bolt 31 and nut 32. The structure is simple, reliable, and easy to install. It can also be flexibly adjusted according to factors such as pipe material, size, leakage situation, and actual working pressure.

[0075] The preload applied by bolts 31 and nuts 32 provides additional reinforcement to the sealing part 11. When the pipeline is subjected to external impact, vibration, or internal pressure fluctuations, the preload helps the sealing part 11 to remain in the correct position, enhancing the stability and reliability of the entire sealing device and preventing the sealing part 11 from loosening or shifting.

[0076] In one possible implementation, see [link to previous document]. Figure 1 The clamping assembly 3 includes a nut drive device 33. The nut drive device 33 is located on one side of the first sealing part 13 and the second sealing part 14, and is connected to the other of the first sealing part 13 and the second sealing part 14. The nut drive device 33 is used to drive the nut 32 to rotate.

[0077] For example, the nut drive device 33 includes, but is not limited to: a motor, an engine, a hydraulic motor, a pneumatic motor, a transmission mechanism, etc. The transmission mechanism includes, but is not limited to: a gear set, a worm gear, etc.

[0078] When the nut drive device 33 drives the nut 32 hydraulically. The nut drive device 33 needs to be connected to the hydraulic station, and is connected to the hydraulic station before the multiple sealing parts 11 are installed.

[0079] For example, the nut drive device 33 includes an interface that matches the shape of the nut 32. When the drive component rotates under power, it comes into close contact with the outer surface or edge of the nut 32 and generates friction, thereby transmitting torque to the nut 32 and causing the nut 32 to rotate about the axis of the bolt 31.

[0080] The force output by the nut drive device 33 is converted into a force suitable for driving the nut 32 to rotate, so that the nut 32 rotates.

[0081] In some dangerous or harsh environments for pipe sealing, such as high temperature, high pressure, toxic and harmful environments, the nut drive device 33 can be remotely controlled or operated from a relatively safe location, reducing the time and opportunity for maintenance personnel to be exposed to dangerous environments and improving the safety of operation.

[0082] The nut drive device 33 can automatically drive the nut 32 to rotate, eliminating the need for manual tightening of the nut 32, reducing the labor intensity of operators and improving work efficiency.

[0083] The nut drive device 33 can be equipped with a torque control mechanism, which can precisely control the preload applied when the nut 32 rotates by setting the torque value. This ensures that the first sealing part 13 and the second sealing part 14 apply appropriate and uniform pressure to the pipeline in the closed state, thus guaranteeing good sealing performance while avoiding damage to the pipeline or the sealing part 11 due to excessive preload.

[0084] In one possible implementation, when the power assembly 2 drives the plugging assembly 1 closer to the bolt 31 and nut 32 so that they can be pre-tightened, the nut drive device 33 and the power assembly 2 operate alternately, causing the plurality of plugging parts 11 to move toward each other and bringing the plugging assembly 1 closer to the pipe. When the plurality of plugging parts 11 are driven into contact, the nut drive device 33 continues to drive the nut 32 to rotate, causing the bolt 31 and nut 32 to further apply pre-tightening force to the plurality of plugging parts 11.

[0085] In one possible implementation, when the power assembly 2 drives the sealing assembly 1 closer to the bolt 31 and nut 32 so that they can be pre-tightened, the nut 32 is rotated only by the nut drive device 33. Through the rotational movement between the nut 32 and the bolt 31, the multiple sealing parts 11 are moved toward each other. When the multiple sealing parts 11 are driven to contact, the nut drive device 33 further drives the nut 32 to rotate, thereby further applying a pre-tightening force to the multiple sealing parts 11.

[0086] When the nut drive device 33 is operated hydraulically, a hydraulic pressure of 50 MPa or higher indicates that the multiple plugging parts 11 have the ability to seal.

[0087] In one possible implementation, the clamping assembly 3 further includes a limiting device. The limiting device is located on the side of the nut 32 away from the bolt. When the hydraulic pressure of the nut drive device 33 reaches 50 MPa and the multiple sealing parts 11 are capable of sealing, the limiting device is used to restrict the retraction of the nut 32, that is, to restrict the movement of the nut 32 in the event that the nut drive device 33 is worn out.

[0088] When the pipe sealing device 200 needs to be removed, the nut 32 is rotated in the opposite direction by the nut drive device 33 to reduce and further eliminate the preload, and then the power assembly 2 is driven to open the multiple sealing parts 11.

[0089] In one possible implementation, see [link to previous document]. Figure 1The clamping assembly 3 includes a bolt tensioner 34. The bolt tensioner 34 is located on one side of the first plugging part 13 and the second plugging part 14. The bolt tensioner 34 is connected to the first plugging part 13 and the second plugging part 14. The bolt tensioner 34 can drive the bolt 31 to reciprocate along the axial direction of the pre-tightening hole 111.

[0090] With multiple sealing sections 11 in the open state, in order to smoothly accommodate the leaking pipe into the receiving hole 12, it is necessary to ensure that there are no obstructions blocking the pipe from entering. The bolt tensioner 34 can pull the bolt 31 so that the bolt 31 is out of the opening direction of the receiving hole 12. This facilitates the accommodation of the leaking pipe into the receiving hole 12.

[0091] After the leaking pipe is successfully accommodated in the receiving hole 12, the bolt 31 needs to be inserted into the pre-tightening hole 111 so that a pre-tightening force can be applied to seal the leak. The bolt tensioner 34 can drive the bolt 31 to move axially along the pre-tightening hole 111, accurately inserting the bolt 31 into the pre-tightening hole 111. During this process, the precise control of the bolt tensioner 34 can ensure that the bolt 31 is accurately aligned, reducing deviations that may be caused by manual operation.

[0092] When the bolt 31 is inserted into the pre-tightening hole 111 and the nut 32 is tightened, and the multiple plugs 11 are capable of sealing, the bolt tensioner 34 provides the bolt 31 with a force in the opposite direction to the nut 32.

[0093] The bolt tensioner 34 can control the applied tension, thereby controlling the preload of the bolt 31. The bolt tensioner 34 is less affected by factors such as the thread friction coefficient, and can more accurately ensure the consistency and accuracy of the preload. A suitable and uniform preload allows the first and second plugging parts 13 and 14 to fit tightly against the pipe surface, ensuring good sealing, while preventing damage to the pipe or the plugging parts 11 due to excessive preload.

[0094] For example, the bolt tensioner 34 includes, but is not limited to: a motor, engine, hydraulic motor, pneumatic motor, transmission mechanism, etc. The transmission mechanism includes, but is not limited to: gear set, worm gear, etc.

[0095] In pipeline leak sealing scenarios with hazardous or harsh environments, such as high temperature, high pressure, or toxic and harmful conditions, the bolt tensioner 34 can provide appropriate pre-tightening force to the sealing section 11. This reduces the time and opportunity for maintenance personnel to be exposed to hazardous environments, improving operational safety.

[0096] In one possible implementation, the clamping assembly 3 further includes a manual tightening device. After the nut drive device 33 and bolt tensioner 34 have tightened the multiple leak-sealing parts 11 into place, a pre-tightening safety measure is applied to the multiple leak-sealing parts 11 manually using the manual tightening device. During this process, the operator can access the pipe leak-sealing device 200.

[0097] The manual tightening device applies a pre-tightening safety measure, which is equivalent to adding an extra layer of protection. It can reduce the risk of leak sealing failure due to equipment failure, ensure the stability of leak sealing under complex working conditions, and improve the safety and reliability of the entire system.

[0098] Meanwhile, while the operator is using the manual tightening device, the operator can closely observe the installation status of each leak-sealing part, making it easier to detect potential problems in a timely manner.

[0099] In one possible implementation, see [link to previous document]. Figure 1 The installation device 100 also includes a guide structure 4. The first plugging part 13 and the second plugging part 14 are slidably connected to the guide structure 4. When the power component 2 drives the first plugging part 13 and the second plugging part 14 to move toward each other or away from each other, the first plugging part 13 and the second plugging part 14 slide along the guide structure 4.

[0100] The power assembly 2 drives the first plugging part 13 and the second plugging part 14 to move closer to or further away from each other, and the guide structure 4 enables the two plugging parts 11 to slide along a specific straight trajectory. The guide structure 4 also helps to maintain the synchronization of their movements.

[0101] The presence of the guide structure 4 makes the installation and adjustment of the first sealing part 13 and the second sealing part 14 more convenient. During installation, the guide structure 4 can be used to quickly position and fix the sealing part 11, ensuring its accurate installation position. Furthermore, in subsequent use, if adjustments to the position or movement of the sealing part 11 are needed, the guide structure 4 provides a clear direction for adjustment and a supporting foundation, reducing the difficulty of operation.

[0102] When the power assembly 2 includes an opening / closing screw 21 and a rotary drive 22, the power assembly 2 drives the sealing part 11 to move. The guide structure 4 can withstand and disperse some of the lateral force and frictional force from the screw. During the rotation of the screw, a certain lateral force is generated on the sealing part 11. Without the support of the guide structure 4, this lateral force may cause the sealing part 11 to tilt or wobble, affecting its fit with the pipe. The guide structure 4, through its sliding connection with the sealing part 11, disperses these forces onto its own structure, thereby enhancing the stability of the entire sealing assembly 1.

[0103] In one possible implementation, see [link to previous document]. Figure 1The installation device 100 also includes a hook that is connected to the leak-sealing component 1.

[0104] In pipeline leak sealing scenarios involving hazardous or harsh environments, such as high temperatures, high pressures, or toxic and harmful substances, using hooks for hoisting avoids coordination difficulties and safety hazards that may arise when multiple people are working together to move the pipes, while also reducing labor costs.

[0105] Meanwhile, operators can flexibly adjust the position and orientation of the leak-sealing component 1 using hoisting equipment (such as cranes, gantry cranes, etc.) on the ground or in a relatively safe location. Maintenance personnel are not required to transport and install it in a hazardous environment; operators can work from a relatively safe distance, avoiding direct exposure to dangerous environments, reducing the probability of accidents such as poisoning, explosions, and corrosion, and ensuring personnel safety.

[0106] The hook provides a stable lifting connection point, enabling lifting equipment to quickly and efficiently transport the leak-sealing component 1 from its storage location to the pipe leak site. Compared to manual handling and installation, this reduces operation time. Especially for some large and heavy leak-sealing components 1, the lifting method can significantly improve installation efficiency, promptly address pipe leaks, and reduce losses caused by leaks.

[0107] The hook is securely connected to the leak-sealing component 1, maintaining its stability during hoisting and reducing swaying and swinging. This not only helps in accurately setting the leak-sealing component 1, but also prevents accidents such as collisions and slippage caused by the swaying of the leak-sealing component 1, further ensuring the safety of operators and surrounding equipment.

[0108] In one possible implementation, see [link to previous document]. Figure 1 The surface of the sealing component 1 facing the receiving hole 12 is the contact surface 15. When the sealing component 1 is in the closed state, the contact surface 15 is suitable for sealing connection with the pipeline.

[0109] When the leak-sealing assembly 1 is in the closed state, the contact surface 15 achieves a sealed connection with the pipeline. This effectively prevents hazardous gases or liquids from leaking further into the surrounding environment. By closely adhering to the pipeline surface, the contact surface 15 fills any unevenness or gaps that may exist on the pipeline surface, forming a barrier that confines the leaked medium inside the pipeline, preventing environmental pollution, safety accidents, and resource waste.

[0110] When the leak-sealing component 1 is closed and the contact surface 15 is in full contact with the pipeline, the pressure is applied evenly throughout the entire contact area, reducing the risk of seal failure due to insufficient local pressure. This improves the stability of the device.

[0111] In one possible implementation, see [link to previous document]. Figure 1Multiple plugging parts 11 form an overflow cavity 16. The overflow cavity 16 is located on the side of the contact surface 15 away from the receiving hole 12 and is arranged along the circumference of the receiving hole 12. The overflow cavity 16 is connected to the receiving hole 12.

[0112] When a pipeline leaks, the leaking hazardous gas or liquid has a high pressure. During the leak sealing process of the pipeline plugging device, the overflow chamber 16 provides a buffer space for the leaked material. When the leaking medium enters the overflow chamber 16, its flow rate and pressure will decrease rapidly, reducing the direct impact force on the plugging component 1, avoiding damage or displacement of the plugging component 1 due to instantaneous excessive pressure, and improving the stability and reliability of the plugging operation.

[0113] In one possible implementation, see [link to previous document]. Figure 1 Along the axial direction of the receiving hole 12, the contact surface 15 includes two sealing surfaces 151 spaced apart and a spacer surface 152 located between the two sealing surfaces 151. Both sealing surfaces 151 are adapted to form a sealing connection with the pipeline. The spacer surface 152 is located on the side of the sealing surfaces 151 opposite to the receiving hole 12, and is connected to the two sealing surfaces 151. The space between the spacer surface 152 and the two sealing surfaces 151 forms an overflow cavity 16.

[0114] Two sealing surfaces 151 are axially spaced along the receiving hole 12 and are both sealed to the pipeline, providing double protection against leakage of hazardous gases or liquids. When a leak occurs in the pipeline, the sealing surfaces 151 can fit tightly against the pipeline surface, filling any tiny gaps and unevenness that may exist on the pipeline surface, forming a reliable sealing barrier to prevent the leaking medium from escaping from the contact point between the receiving hole 12 and the pipeline, thereby effectively reducing the risk of medium leakage into the surrounding environment.

[0115] When the sealing surface 151 contacts the pipeline, it can evenly transmit the clamping force applied by the sealing component 1 to the pipeline surface, forming a stable sealing pressure. The uniform sealing pressure distribution helps to improve the reliability of the seal and avoid seal failure due to insufficient local pressure.

[0116] The spacer surface 152 connects the two sealing surfaces 151, and together they form the overflow cavity 16. The overflow cavity 16 provides a buffer and collection space for the leaked medium.

[0117] The leaked medium will enter the overflow chamber 16 under the obstruction of the spacer surface 152. The overflow chamber 16 can contain a certain amount of leaked medium, preventing the medium from directly spreading into the surrounding environment. For toxic, harmful, flammable and explosive media, it can effectively reduce environmental pollution and harm to maintenance personnel, and also facilitate the centralized treatment of leaked media.

[0118] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0119] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An installation device (100), characterized in that, For installing a leak-sealing assembly (1), the leak-sealing assembly (1) includes a plurality of leak-sealing parts (11) surrounding a receiving hole (12); The mounting device (100) includes: A power assembly (2) is connected to the leak-sealing assembly (1), and the power assembly (2) is used to drive the plurality of leak-sealing parts (11) to switch between an open state and a closed state; A clamping assembly (3) is connected to the plugging assembly (1), and the clamping assembly (3) is used to apply a clamping force toward the receiving hole (12) to the plurality of plugging parts (11) when the plurality of plugging parts (11) are in the closed state.

2. The installation device (100) according to claim 1, characterized in that, The plurality of the plugging parts (11) include: a first plugging part (13) and a second plugging part (14), wherein the first plugging part (13) and the second plugging part (14) surround the receiving hole (12); The power assembly (2) is connected to the first plugging part (13) and to the second plugging part (14). The power assembly (2) is used to drive the first plugging part (13) and the second plugging part (14) to move towards each other or away from each other, so as to switch between the open state and the closed state.

3. The installation device (100) according to claim 2, characterized in that, Along the setting direction of the first plugging part (13) and the second plugging part (14), a pre-tightening hole (111) is provided through the first plugging part (13) and the second plugging part (14); The clamping assembly (3) includes: A bolt (31) is inserted into the pre-tightening hole (111) by means of one of the first plugging part (13) and the second plugging part (14) on the side opposite to the other; along the radial direction of the pre-tightening hole (111), the head diameter of the bolt (31) is larger than the diameter of the pre-tightening hole (111); A nut (32) is located on one side of the first plugging part (13) and the second plugging part (14) and is threadedly connected to the bolt (31); When the first and second plugs (14) are in the closed state, the bolt (31) and the nut (32) cooperate to apply a preload force to the first plug (13) and the second plug (14) toward each other.

4. The mounting device (100) according to claim 3, characterized in that, The clamping assembly (3) includes: A nut drive device (33) is located on one side of the first plugging part (13) and the second plugging part (14) and is connected to the other of the first plugging part (13) and the second plugging part (14). The nut drive device (33) is used to drive the nut (32) to rotate.

5. The mounting device (100) according to claim 4, characterized in that, The clamping assembly (3) includes: A bolt tensioner (34) is located on one side of one of the first plugging part (13) and the second plugging part (14). The bolt tensioner (34) is connected to one of the first plugging part (13) and the second plugging part (14). The bolt tensioner (34) can drive the bolt (31) to reciprocate along the axial direction of the pre-tightening hole (111).

6. The mounting device (100) according to claim 2, characterized in that, The power assembly (2) includes: The opening and closing screw (21) includes a first screw section and a second screw section. The thread helix direction of the first screw section is opposite to that of the thread helix direction of the second screw section. The first plugging part (13) is threaded to the first screw section, and the second plugging part (14) is threaded to the second screw section. A rotary drive (22) is used to drive the opening and closing screw (21) to rotate.

7. The mounting device (100) according to claim 2 or 6, characterized in that, The mounting device (100) also includes: The guide structure (4) is provided, and the first plugging part (13) and the second plugging part (14) are slidably connected to the guide structure (4). When the power component (2) drives the first plugging part (13) and the second plugging part (14) to move toward each other or away from each other, the first plugging part (13) and the second plugging part (14) slide along the guide structure (4).

8. A pipe sealing device (200), characterized in that, include: A leak-sealing assembly (1) includes a plurality of leak-sealing parts (11) that surround a receiving hole (12), the receiving hole (12) being used to receive a pipe; The installation device (100) according to any one of claims 1-7 is connected to the leak-sealing assembly (1) and drives a plurality of the leak-sealing parts (11) to switch between an open state and a closed state.

9. The pipe sealing device (200) according to claim 8, characterized in that, The surface of the sealing component (1) facing the receiving hole (12) is the contact surface (15). When the sealing component (1) is in the closed state, the contact surface (15) is adapted to be sealed with the pipe.

10. The pipe sealing device (200) according to claim 9, characterized in that, Multiple plugging parts (11) form an overflow cavity (16), which is located on the side of the contact surface (15) away from the receiving hole (12) and is arranged along the circumference of the receiving hole (12). The overflow cavity (16) is connected to the receiving hole (12).

11. The pipe sealing device (200) according to claim 10, characterized in that, Along the axial direction of the receiving hole (12), the contact surface (15) includes: Two sealing surfaces (151) are spaced apart, both of which are adapted to be sealed to the pipe; The spacer surface (152) is located between the two sealing surfaces (151) and on the side of the sealing surface (151) away from the receiving hole (12). The spacer surface (152) is connected to the two sealing surfaces (151), and the space between the spacer surface (152) and the two sealing surfaces (151) is an overflow cavity (16).

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