Polyethylene (PE) pipeline valve driven in multiple modes

Abstract

The multi-mode driven PE pipeline valve comprises a valve body, a valve rod and an operation cap arranged at the top end of the valve rod, a driving execution assembly is connected with the operation cap through a connecting assembly, the driving execution assembly can achieve remote opening and closing control over the valve, and safety management is achieved; the driving execution assembly is connected with a connecting flange fixed to the top end of the valve rod protection barrel through a fixing frame, a guide shaft support is arranged on the fixing frame, a linear bearing is arranged on the connecting flange, an optical shaft penetrates through the guide shaft support and the linear bearing, and the driving execution assembly can move up and down relative to the connecting flange through the optical shaft and the linear bearing. The driving execution assembly can be lifted and rotated by a certain angle through the lifting handle installed on the fixing frame, so that the connecting assembly is taken out of the operation cap, and the valve can be opened and closed manually through the handle. Therefore, flexible switching between remote electric control and on-site manual driving is achieved, safe management of the flow of the natural gas pipeline is guaranteed, and the use risk is reduced.

Description

Technical Field

[0001] This application relates to the technical field of gas pipeline valves, and particularly to a PE pipeline valve driven by multiple methods for municipal pipe networks. Background Art

[0002] The demand for natural gas intelligent pipe networks in economic and social development is continuously increasing. To strengthen safety management, realize the access of online monitoring data of natural gas pipelines, and integrate the network ledger information, the requirements for the informatization level of enterprise modern management are also getting higher and higher, especially for the informatization level and quality of each component in the pipe network, such as valves, instruments, etc. installed on natural gas pipelines.

[0003] Traditional valves are basically manually driven, and then locked to prevent unauthorized operation or theft of the valves to ensure the safe use of the valves. However, with the increasing requirements for the informatization level of natural gas intelligent pipe networks, traditional valves are lacking in function. In addition to the original opening and closing function of the valves, the cooperation function between on-site operations and remote control platforms also needs to be considered synchronously. Therefore, it is necessary to propose a new technical solution to solve the problems existing in the prior art. Utility Model Content

[0004] This application provides a PE pipeline valve driven by multiple methods to solve the problem that the single control method of traditional natural gas valves cannot meet the usage requirements of natural gas intelligent pipe networks.

[0005] To achieve the above object, this application provides the following technical solutions:

[0006] This application provides a PE pipeline valve driven by multiple methods, including a valve body. A valve core is provided in the internal cavity of the valve body. A valve stem is connected above the valve core. An operation cap is provided at the top of the valve stem. A protection cylinder is arranged around the valve stem. A welding flange is provided at the top of the protection cylinder. The operation cap is located above the welding flange. The operation cap is connected to the output shaft of the drive execution component through a connection component. The welding flange is connected to a connection flange. A fixing frame for fixing the drive execution component is installed on the connection flange. A guide shaft support is provided on the fixing frame. A smooth shaft is vertically penetrated through the guide shaft support. A linear bearing and a limit block are arranged adjacent to each other on the connection flange. One end of the smooth shaft passes through the linear bearing and is connected to a locking fixing ring. A proximity switch is arranged below the limit block. A handle is installed on the fixing frame.

[0007] In the above technical solution, further, the welding flange is a PE welding flange. A through hole allowing the operation cap to pass through is opened on the connection flange. The connection flange is firmly connected to the welding flange through bolts. A cylindrical pin for corresponding positioning with the welding flange is provided on the connection flange.

[0008] Further, the connecting component includes a lower connecting piece and an upper connecting piece. The lower connecting piece is of a block structure. A first connecting groove adapted for fitting installation with the operating cap is formed at the bottom of the lower connecting piece. Two bumps are oppositely arranged at the top of the lower connecting piece, and an installation groove is formed between the two bumps. A connecting column adapted for fitting insertion with the installation groove is formed at the bottom of the upper connecting piece, and a second connecting groove adapted for fitting connection with the output shaft of the driving and executing component is formed at the top of the upper connecting piece.

[0009] Further, the surfaces of the two oppositely arranged bumps are both inclined surfaces.

[0010] Further, the driving and executing component includes an explosion-proof driving actuator. The explosion-proof driving actuator includes a housing. A driver is arranged in the inner cavity of the housing. The output end of the driver penetrates through the housing and is connected to the connecting component through a connector, and the operation of the operating cap is driven through the connecting component.

[0011] Further, the connecting flange is a horizontally arranged plate member. One end of the connecting flange forms a flange plate adapted for fitting connection with the welding flange. An extension fixing plate is formed on one side of the flange plate. The linear bearing and the limiting block are arranged on the extension fixing plate, and the fixing frame is tightly connected to the extension fixing plate.

[0012] Further, an installation bracket for installing a proximity switch is arranged below the limiting block. The proximity switch is located below the connecting flange and close to the optical axis.

[0013] Further, the handle is a U-shaped handle. Connecting plates are respectively arranged at both ends of the U-shaped handle, and connecting holes allowing screws to pass through are formed on the connecting plates. A hexagonal connecting column is horizontally penetrated through the fixing frame, and both ends of the hexagonal connecting column correspond to the connecting holes on the two connecting plates respectively and are tightly connected through screws.

[0014] Compared with the prior art, the present application has at least the following beneficial effects:

[0015] The multi-mode driven PE pipeline valve provided by the present application includes a valve body. A valve core is arranged in the inner cavity of the valve body. A valve stem is connected above the valve core, and an operation cap is arranged at the top of the valve stem. Rotating the operation cap can open and close the valve. In order to realize the information connection between the valve and the natural gas intelligent pipe network, a driving and executing component is arranged in the present application. The driving and executing component realizes the action drive of the operation cap through a connecting component. The driving and executing component can realize the information connection with the natural gas intelligent pipe network, realize the remote opening and closing control of the valve, can monitor the opening and closing state of the valve in real time, and realize safety management; the driving and executing component is firmly connected to the connecting flange through a fixing frame. A guide shaft support is arranged on the fixing frame, and a linear bearing is arranged on the connecting flange. A smooth shaft passes through the guide shaft support and the linear bearing. Therefore, the driving and executing component can move up and down relative to the connecting flange. After lifting the driving and executing component by a handle and rotating it by a certain angle, the connecting component is taken out from the operation cap, and then the valve can be manually opened and closed with a handle. The proximity switch can prevent the driving and executing component from rotating when it is not installed in place, so as to avoid damage to personnel and the valve. It can be seen that the valve provided by the present application integrates remote electric control and on-site manual drive, can realize flexible switching, greatly facilitates the implementation of various on-site operations. At the same time, the valve is connected to the natural gas intelligent pipe network through the driving and executing component, realizes remote control and monitoring, ensures the safety management of the natural gas pipeline, ensures the use safety of the natural gas intelligent pipe network, and reduces the use risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. It should be understood that the specific shapes and structures shown in the drawings are generally not regarded as limiting conditions when implementing the present application; for example, those skilled in the art are capable of making conventional adjustments or further optimizations to the addition / deletion / attribution division of certain units (components), specific shapes, positional relationships, connection methods, dimensional proportional relationships, etc. based on the technical concepts disclosed in the present application and the exemplary drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the PE pipeline valve provided by the present application in an embodiment from a perspective;

[0018] Figure 2 It is a front view structural schematic diagram of the lower valve body structure of the PE pipeline valve provided by the present application in an embodiment;

[0019] Figure 3Schematic three - dimensional structure diagram of the lower valve body structure of the PE pipeline valve provided in this application in one embodiment. In this application, the end cover at the top of the protection cylinder of the existing pipeline PE valve is mainly improved to a welded flange, and a connecting flange, a fixing bracket, a driving and executing assembly, etc. are installed on the welded flange to jointly form a multi - mode driving valve that can achieve remote driving and manual driving;

[0020] Figure 4 Schematic side - view structure diagram of the upper driving structure of the PE pipeline valve provided in this application in one embodiment;

[0021] Figure 5 Schematic front - view structure diagram of the upper driving structure of the PE pipeline valve provided in this application in one embodiment;

[0022] Figure 6 Schematic top - view structure diagram of the connecting flange of the PE pipeline valve provided in this application in one embodiment;

[0023] Figure 7 Schematic side - view structure diagram of the connecting flange of the PE pipeline valve provided in this application in one embodiment;

[0024] Figure 8 Schematic front - view structure diagram of the lower connecting part and the upper connecting part of the PE pipeline valve provided in this application in the assembled state;

[0025] Figure 9 For Figure 8 Schematic side - view structure diagram of the lower connecting part and the upper connecting part shown in the assembled state;

[0026] Figure 10 Schematic diagram of the state of the PE pipeline valve provided in this application when the driving and executing assembly is lifted and the connecting assembly and the operating cap are rotated out of alignment in a top - down perspective.

[0027] Explanation of reference numerals:

[0028] 1. Valve body; 2. Protection cylinder; 3. Operating cap; 4. PE welded flange; 5. Connecting flange; 6. Fixing bracket; 7. Driving and executing assembly; 8. Installation groove; 9. Lower connecting part; 10. Upper connecting part; 11. Guide shaft support; 12. Linear bearing; 13. Optical axis; 14. Locking and fixing ring; 15. Limit block; 16. Installation bracket; 17. Proximity switch; 18. Handle; 19. Connecting plate; 20. Hexagonal connecting column. Detailed description of the specific implementation

[0029] The following further details this application through specific embodiments in conjunction with the accompanying drawings.

[0030] In the description of this application: unless otherwise specified, "plurality" means two or more. The terms "first", "second", etc. in this application are intended to distinguish the objects referred to, and do not have special meanings in terms of technical connotations (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0031] The terms such as "upper", "lower", "left", "right" etc. used in this application are usually used to facilitate intuitive understanding by comparing with the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product. Without departing from the technical concept disclosed in this application, changes in these relative positional relationships should also be considered as the scope of this application.

[0032] PE valve is a control component used in fluid delivery systems, with functions such as cutoff, regulation, diversion, backflow prevention, pressure stabilization, diversion or overflow pressure relief. The present application provides a multi-mode driven PE pipeline valve (a natural gas PE valve). By configuring a valve actuator, the gas company can remotely control the opening and closing of the valve, and the valve can be cut off in time when an accident such as a gas leak occurs. At the same time, through structural design, it can also meet the needs of on-site operators to manually open and close the valve.

[0033] The present application provides a multi-mode driven PE pipeline valve by replacing the upper end cover of the protective cylinder 2 on the PE valve with a PE welding flange 4, such as Figure 2 , and then fix the connecting flange 5 to the PE welding flange 4 with bolts and position it with cylindrical pins, such as Figure 3 The connecting flange 5 provides structural installation and supporting connection for the drive actuator 7, the fixing frame 6 and other structures.

[0034] For details, see Figure 1 , 3 4. The PE pipeline valve mainly includes a valve body 1. A valve core is provided in the internal cavity of the valve body 1. A valve stem is connected above the valve core. The valve stem is rotatably connected to the valve body 1. An operating cap 3 is provided at the top of the valve stem. A protective cylinder 2 is provided outside the valve stem. A welding flange is provided on the top of the protective cylinder 2. The operating cap 3 is located above the welding flange. The operating cap 3 is connected to the output shaft of the driving actuator 7 through a connecting assembly. The welding flange is connected to the connecting flange 5. A fixing frame 6 for fixing the driving actuator 7 is installed on the connecting flange 5. A guide shaft support 11 is provided on the fixing frame 6. An optical axis 13 is vertically penetrated in the guide shaft support 11. A linear bearing 12 and a limit block 15 are adjacently provided on the connecting flange 5. One end of the optical axis 13 passes through the linear bearing 12 and is connected to a locking fixing ring 14. A proximity switch 17 is provided below the limit block 15. A handle 18 is installed on the fixing frame 6.

[0035] Therefore, in this application, the valve operation cap 3 is connected to the driving and executing component 7 through a connecting component. The driving and executing component 7 can be connected to the information system of the natural gas intelligent pipe network, realizing real-time monitoring and remote control of the valve, which helps to improve the intelligent level of the pipe network, can respond in a timely manner to changes in the pipe network state, optimize the operation efficiency, and ensure safety. At the same time, in this application, a linear bearing 12 and a limit block 15 are provided on the connecting flange 5. The driving and executing component 7 can move up and down through the sliding of the optical axis 13 in the linear bearing 12. The driving and executing component 7 can be lifted by the handle. After rotating a certain angle, the connecting component can be removed from the operation cap 3, and then the valve can be manually opened and closed using the handle. This design allows users to conveniently perform manual operations when the automated system cannot be used or during on-site maintenance, ensuring the reliability and flexibility of the valve; the setting of the optical axis 13 and the linear bearing 12 plays a guiding role when lifting and lowering the driving and executing component 7, improving the stability and accuracy of the valve during operation, reducing friction and wear, and extending the service life of the valve; one end of the optical axis 13 passes through the linear bearing 12 and is connected to the locking and fixing ring 14 to prevent the driving and executing component 7 from being pulled out from the connecting flange 5. Therefore, this application combines electric drive and manual operation, meeting different usage scenarios and requirements. Electric drive can achieve automated control and is suitable for remote monitoring and automated pipe network systems; while manual operation provides the flexibility of manual control and is convenient to operate when the electric drive fails or manual intervention is required.

[0036] In a preferred embodiment of this application, the connecting component mainly includes a lower connecting piece 9 and an upper connecting piece 10. Refer to Figure 8 , 9 , the lower connecting piece 9 is a block structure. The bottom of the lower connecting piece 9 forms a first connecting groove adapted to be installed with the operation cap 3. Two convex blocks are oppositely arranged on the top of the lower connecting piece 9. An installation groove 8 is formed between the two convex blocks. The bottom of the upper connecting piece 10 forms a connecting column adapted to be inserted into the installation groove 8. The top of the upper connecting piece 10 forms a second connecting groove adapted to be connected to the output shaft of the driving and executing component 7. The surfaces of the two convex blocks facing each other are both inclined surfaces. Preferably, the inclined directions of the surfaces of the two convex blocks facing each other are opposite, jointly forming a trapezoidal groove that is wider at the top and narrower at the bottom, so that the lower connecting piece 9 and the upper connecting piece 10 adopt an inclined mouth docking method, facilitating rapid connection.

[0037] In a preferred embodiment of this application, the driving and executing component 7 mainly includes an explosion-proof driving actuator. The explosion-proof driving actuator includes a housing. A driver is arranged in the inner cavity of the housing. The output end of the driver penetrates the housing and is connected to the connecting component through a connecting head, and drives the operation of the operation cap 3 through the connecting component.

[0038] In a preferred embodiment of this application, refer to Figure 6 , 7, the connecting flange 5 is a horizontally arranged plate member. One end of the connecting flange 5 forms a flange plate adapted to be connected to the welding flange. Through holes for installing screws are provided on the flange plate. An extended fixing plate is formed on one side of the flange plate. The linear bearing 12 and the limit block 15 are both arranged on the extended fixing plate. The fixing bracket 6 for installing the driving execution assembly 7 is firmly connected to the extended fixing plate. Specifically, the driving execution assembly 7 and the fixing bracket 6 are firmly connected through connecting fittings such as screws, flat washers, and spring washers.

[0039] In a preferred embodiment of the present application, refer to Figure 7 , an installation bracket 16 for installing a proximity switch 17 is arranged below the limit block 15. The proximity switch 17 is located below the connecting flange 5 and close to the optical axis 13. The proximity switch 17 can prevent the driving execution assembly 7 from rotating when it is not installed in place, so as to avoid causing harm to personnel and valves. The limit block 15 plays a role in restricting the self-rotation of the driving execution assembly 7.

[0040] In a preferred embodiment of the present application, refer to Figure 4 、 5 , the handle 18 is a U-shaped handle. Connecting plates 19 are respectively arranged at both ends of the U-shaped handle. Connecting holes allowing screws to pass through are formed on the connecting plates 19. A hexagonal connecting column 20 is horizontally penetrated through the fixing bracket 6. The two ends of the hexagonal connecting column 20 respectively correspond to the connecting holes on the two connecting plates 19 and are firmly connected through screws. The fixing bracket 6 and the handle in the present application make the installation and maintenance of the driving execution assembly 7 more convenient. The fixing bracket 6 stabilizes the position of the driving execution assembly 7, and the handle makes the maintenance and adjustment operations more convenient, reducing the difficulty of manual operations.

[0041] Therefore, the multi-mode driven PE pipeline valve provided by the present application integrates remote electric control and on-site manual drive, can achieve flexible switching, and greatly facilitates the implementation of various on-site operations. The PE pipeline valve provided by the present application is provided with an explosion-proof driving actuator, ensuring the use safety, and is equipped with an optical axis, a linear bearing, a handle, etc., providing an operating space for special tools and facilitating manual intervention.

[0042] The multi-mode driven PE pipeline valve provided by the present application can be used as an important component of the natural gas pipeline network. While realizing the remote control function, it takes into account the needs of on-site operators for the manual control function, is bidirectionally open, and meets the various needs of the natural gas industry. In the specific use process, the PE pipeline valve provided by the present application can realize the control of valve opening and closing through remote control. During on-site operations, manual operation is convenient and fast, realizing multi-mode flexible operations and facilitating the maintenance and repair of the valve.

[0043] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of brevity in description, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written out should also be considered to be within the scope described in this specification.

[0044] In the foregoing, the present application has been described in a relatively specific and detailed manner through general descriptions and specific embodiments. It should be understood that based on the technical concept of the present application, several conventional adjustments or further innovations can also be made to these specific embodiments; but as long as they do not depart from the technical concept of the present application, the technical solutions obtained by these conventional adjustments or further innovations also fall within the scope of protection of the claims of the present application.

Claims

1. A multi-mode driven PE pipeline valve, comprising a valve body, a valve core is arranged in the inner cavity of the valve body, a valve stem is connected above the valve core, and an operation cap is arranged at the top end of the valve stem, characterized in that, A protective cylinder is arranged around the valve stem. A welding flange is arranged at the top of the protective cylinder. The operating cap is located above the welding flange. The operating cap is connected to the output shaft of the driving and executing assembly through a connecting assembly. The welding flange is connected to a connecting flange. A fixing bracket for fixing the driving and executing assembly is installed on the connecting flange. A guide shaft support is arranged on the fixing bracket. A smooth shaft vertically penetrates through the guide shaft support. A linear bearing and a limit block are arranged adjacent to each other on the connecting flange. One end of the smooth shaft passes through the linear bearing and is connected to a locking and fixing ring. A proximity switch is arranged below the limit block. A handle is installed on the fixing bracket.

2. The multi-mode driven PE pipeline valve according to claim 1, wherein, The welding flange is a PE welding flange. A through hole allowing the operating cap to pass through is formed on the connecting flange. The connecting flange is tightly connected to the welding flange through bolts. A cylindrical pin for corresponding positioning with the welding flange is arranged on the connecting flange.

3. The multi-mode driven PE pipeline valve according to claim 1, characterized in that, The connecting assembly includes a lower connecting piece and an upper connecting piece. The lower connecting piece is of a block structure. A first connecting groove adapted to be installed with the operating cap is formed at the bottom of the lower connecting piece. Two convex blocks are oppositely arranged at the top of the lower connecting piece. An installation groove is formed between the two convex blocks. A connecting column adapted to be inserted into the installation groove is formed at the bottom of the upper connecting piece. A second connecting groove adapted to be connected with the output shaft of the driving and executing assembly is formed at the top of the upper connecting piece.

4. The multi-mode driven PE pipe valve according to claim 3, characterized in that, The surfaces of the two oppositely arranged convex blocks are both inclined surfaces.

5. The multi-mode driven PE pipeline valve according to claim 1, characterized in that, The driving and executing assembly includes an explosion-proof driving actuator. The explosion-proof driving actuator includes a housing. A driver is arranged in the inner cavity of the housing. The output end of the driver penetrates through the housing and is connected to the connecting assembly through a connecting head, and the operation of the operating cap is driven through the connecting assembly.

6. The multi-mode driven PE pipeline valve according to claim 1, characterized in that, The connecting flange is a horizontally arranged plate member. One end of the connecting flange forms a flange plate adapted to be connected with the welding flange. An extended fixing plate is formed on one side of the flange plate. The linear bearing and the limit block are arranged on the extended fixing plate. The fixing bracket is tightly connected to the extended fixing plate.

7. The multi-mode driven PE pipeline valve according to claim 1, characterized in that, An installation bracket for installing the proximity switch is arranged below the limit block. The proximity switch is located below the connecting flange and close to the smooth shaft.

8. The multi-mode driven PE pipe valve according to claim 1, characterized in that The handle is a U-shaped handle. Connecting plates are respectively arranged at both ends of the U-shaped handle. Connecting holes allowing screws to pass through are formed on the connecting plates. A hexagonal connecting column horizontally penetrates through the fixing bracket. The two ends of the hexagonal connecting column respectively correspond to the connecting holes on the two connecting plates and are tightly connected through screws.

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