Gate valve

Abstract

The invention relates to the technical field of valves, and provides a gate valve which comprises a connecting part arranged on a conveying pipeline and internally provided with a conveying space; the closing part is arranged on the connecting part, the closing part comprises a closing mechanism and a closed containing space, and the closing mechanism is located in the closed containing space and used for dividing the conveying space into two parts which are not communicated or not dividing the conveying space; and the pressurizing part is arranged on the closing part, a pressurizing channel is formed in the pressurizing part, and the pressurizing part is used for conveying pressure in the conveying space into the closed containing space through the pressurizing channel, so that the closing mechanism continuously gets close to the connecting part. According to the gate valve provided by the invention, the technical problem of material leakage caused by a gap between the gate plate and the feeding pipeline due to the fact that the pressure generated in the reaction furnace is possibly greater than the pressure provided by the material in the storage tank in the prior art can be solved.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a gate valve. Background Art

[0002] A gate valve is a valve used to start and close a fluid channel. The movement direction of its opening and closing parts (gate) is perpendicular to the direction of the fluid. The main feature of a gate valve is that it can only be fully opened and fully closed, and cannot be used for regulation and throttling.

[0003] When the gate valve in the related technology acts on a storage tank that discharges materials vertically along the direction of gravity, the material stored in the storage tank usually provides pressure to make the gate plate close to the feeding pipe to achieve further sealing. When the storage tank contains less material and the transported material directly enters the reactor for further processing, the pressure generated in the reactor may be greater than the pressure provided by the material in the storage tank, causing a gap between the gate plate and the feeding pipe, resulting in leakage. Summary of the invention

[0004] The embodiment of the present application provides a gate valve, which can improve the technical problem in the related art that the pressure generated in the reactor may be greater than the pressure provided by the material in the storage tank, resulting in a gap between the gate plate and the feeding pipe, causing leakage.

[0005] The present application provides a gate valve, including: A connecting part, the connecting part is used to be arranged on the transport pipeline, and the connecting part has a transport space therein; a closing portion, the closing portion being arranged on the connecting portion, the closing portion comprising a closing mechanism and a closed accommodating space, the closed accommodating space being in communication with the conveying space, the closing mechanism being located in the closed accommodating space, and the closing mechanism being used to divide the conveying space into two unconnected parts or not to divide the conveying space; and A boosting part, wherein the boosting part is arranged on the closing part, and wherein a boosting channel is provided in the boosting part, wherein one end of the boosting channel is communicated with the closed accommodating space, and the other end of the boosting channel is communicated with a side of the conveying space close to the reactor, and wherein the boosting part is used to convey the pressure on the side of the conveying space close to the reactor to the closed accommodating space through the boosting channel, so that when the closing mechanism divides the conveying space into two non-connected parts, the closing mechanism continuously abuts against the connecting part in the conveying space in a direction parallel to the transport direction of the material in the connecting part to continuously block the conveying space.

[0006] The above technical solutions in the embodiments of the present application have at least the following technical effects: The gate valve provided in the embodiment of the present application is connected to the transportation pipeline through a connecting part, so that the material in the storage tank can enter the reactor through the connecting part; then the conveying space is divided into two non-connected parts or the conveying space is not divided through a closing mechanism located in the closed accommodating space of the closing part, so as to realize the mutual switching of the gate valve between the fully closed state and the fully open state; then the pressure in the reactor is transmitted to the closed accommodating space through the boosting part, so that the closing mechanism continues to approach the connecting part under the action of pressure, and the pressure in the closed accommodating space is greater than or equal to the pressure in the reactor, so as to achieve a better sealing effect and avoid leakage caused by gaps between the closing mechanism and the connecting part.

[0007] In some embodiments, the connecting portion comprises: a connecting pipe, used to connect the transport pipeline, wherein the connecting pipe has the transport space; and A plurality of connection fixing members, arranged on the connection pipe, for fixing the connection pipe to the transport pipeline; Wherein, the closing portion is arranged on the connecting pipe.

[0008] In some embodiments, the closure portion comprises: A gate barrel, located in the middle of the connecting pipe and arranged on the connecting pipe perpendicular to the transport direction of the material in the connecting pipe, for dividing the connecting pipe into two unconnected parts, the gate barrel having the closed accommodation space; Two sealing rings are located in the closed accommodation space and are respectively arranged on both sides of the connection between the gate barrel and the connecting pipe, and the sealing rings are coaxial with the connecting pipe; and A pressure relief member, disposed on the gate barrel and connected to the closed accommodating space, for allowing the gas in the closed accommodating space to overflow so as to reduce the pressure in the closed accommodating space; Wherein, the closing mechanism is partially located in the closed accommodating space and is movably arranged on the gate barrel, the boosting part is arranged on the gate barrel, and the boosting part is used to transport the pressure in the conveying space to the closed accommodating space through the boosting channel, so that the closing mechanism can be abutted against the sealing ring in a direction parallel to the transportation direction of the material in the connecting part when the conveying space is divided into two non-connected parts.

[0009] In some embodiments, the closure mechanism comprises: a closing member, located in the closed accommodating space and movably disposed on the gate barrel, for dividing the conveying space into two unconnected parts or not dividing the conveying space; and A closing drive unit is arranged on the gate barrel, and a power output end of the closing drive unit is connected to the closing member. The closing drive unit is used to drive the closing member to move toward an end of the gate barrel away from the closing drive unit to divide the conveying space into two non-connected parts, or to drive the closing member to move toward an end of the gate barrel close to the closing drive unit so that the closing member does not divide the conveying space.

[0010] In some embodiments, the closure comprises: A fixing device, located in the closed accommodation space and connected to the power output end of the closed driving part; two valve plates, located in the closed accommodation space perpendicular to the conveying direction of the material in the connecting pipe, and movably disposed on both sides of the fixing device, respectively, the valve plates being used to divide the conveying space into two non-communicating parts or not to divide the conveying space; and A moving device, located in the closed accommodation space and between the two valve plates, the moving device is arranged on the fixing device and is respectively connected to the two valve plates, and is used to drive the two valve plates to move closer to or away from each other; When the moving device drives the two valve plates to move closer to each other, the vertical distance between the two valve plates can be smaller than the vertical distance between the two sealing rings; when the moving device drives the two valve plates to move away from each other, the vertical distance between the two valve plates can be larger than the vertical distance between the two sealing rings.

[0011] In some embodiments, the fixing device comprises: A fixed block, located in the closed accommodating space and connected to the power output end of the closing drive unit, for fixing the valve plate; L-shaped first grooves capable of partially accommodating the two valve plates are respectively provided on both sides of the fixed block, one end of the valve plate is arranged in the first groove, the width of the first groove on the side close to the closing drive unit is equal to the thickness of the valve plate, so that the valve plate cannot move along the moving direction of the fixed block, and the width of the first groove on the side away from the closing drive unit is greater than the thickness of the valve plate, so that the valve plate approaches or moves away from the connecting pipe in a direction perpendicular to the moving direction of the fixed block; a second groove is provided on the inner wall of the first groove on the side away from the closing drive unit in a direction perpendicular to the moving direction of the fixed block; a pressurizing hole is provided in the center of the fixed block and penetrates the fixed block in the moving direction of the fixed block; and The elastic support member is located in the second groove and is used for abutting against the valve plate to move the valve plate closer to the first groove and away from the pressure increasing hole.

[0012] In some embodiments, the elastic support member comprises: a support spring, located in the second groove, one end of the support spring being connected to an inner bottom wall of the second groove; and a support plate, movably located in the second groove and connected to the other end of the support spring; Wherein, when the valve plate is not in the first groove, the support spring can make one side of the support plate closely attached to the inner side wall of the first groove opposite to the second groove.

[0013] In some embodiments, the mobile device comprises: A connecting rod, located between the two valve plates, one end of the connecting rod being connected to the fixing block; a receiving portion, located between the two valve plates and connected to the other end of the connecting rod, wherein the receiving portion has a first receiving space and two second receiving spaces, and the first receiving space is connected to the two second receiving spaces; a gear, rotatably disposed in the first accommodation space; Two racks are movably disposed in the two second accommodating spaces, respectively, and mesh with the gears, respectively; one end of the two racks away from the gears is connected to the two valve plates, respectively; and The mobile driving part is located between the two valve plates and is arranged on the accommodating part. The power output end of the mobile driving part is connected to the gear. The mobile driving part is used to drive the gear to rotate to drive the two racks meshing with the gear to move so as to move the two valve plates closer to or farther away from each other.

[0014] In some embodiments, the pressurization unit comprises: a boosting pipe, one end of which is connected to a side of the connecting pipe close to the reactor, the other end of which is connected to the sluice barrel, and the boosting pipe has the boosting channel therein; and A pressure-sensitive member is located in the boosting channel and is arranged on the boosting pipe. The pressure-sensitive member is used to separate the boosting channel into two unconnected parts or not separate the boosting channel so that the gas in the conveying space can reach the closed accommodating space through the boosting channel.

[0015] In some embodiments, the pressure sensing member comprises: a closing plate, located in the boosting channel and movably disposed on the boosting pipe; and A pressure-sensitive spring is located in the boost channel, one end of the pressure-sensitive spring is connected to the closing plate, and the other end of the pressure-sensitive spring is connected to the boost pipe. The pressure-sensitive spring is used to provide elastic force so that the closing plate separates the boost channel into two non-connected parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the structure of a gate valve provided in an embodiment of the present application; Figure 2 for Figure 1 The cross-sectional structure diagram of the gate valve shown; Figure 3 A schematic diagram of the structure of a closing mechanism provided in an embodiment of the present application; Figure 4 for Figure 3 A schematic cross-sectional view of the closing mechanism shown; Figure 5 A schematic diagram of the structure of a fixing device provided in an embodiment of the present application; Figure 6 for Figure 5 A schematic cross-sectional view of the fixing device shown; Figure 7 A schematic diagram of the structure of the mobile device after removing part of the accommodation portion provided in an embodiment of the present application.

[0018] Among them, the reference numerals in the figure are: 100, gate valve; 10, connecting part; 11, connecting pipe; 12, connecting fixing piece; 20, closing part; 21, closing mechanism; 211, closing part; 2111, fixing device; 21111, fixing block; 21112, elastic supporting member; 21112a, supporting spring; 21112b, supporting plate; 2112, valve plate; 2113, moving device; 21131, connecting rod; 21132, accommodating part; 21133, gear; 21134, rack; 21135, moving driving part; 212, closing driving part; 22, sealing ring; 23, pressure relief part; 24, gate barrel; 30, boosting part; 31, boosting pipe; 32, pressure-sensitive part; 321, closing plate; 322, pressure-sensitive spring. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0025] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] A gate valve is a valve used to start and close a fluid channel. The movement direction of its opening and closing parts (gate) is perpendicular to the direction of the fluid. The main feature of a gate valve is that it can only be fully opened and fully closed, and cannot be used for regulation and throttling.

[0027] When the gate valve in the related technology acts on a storage tank that discharges materials vertically along the direction of gravity, the material stored in the storage tank usually provides pressure to make the gate plate close to the feeding pipe to achieve further sealing. When the storage tank contains less material and the transported material directly enters the reactor for further processing, the pressure generated in the reactor may be greater than the pressure provided by the material in the storage tank, causing a gap between the gate plate and the feeding pipe, resulting in leakage.

[0028] Based on this, in order to improve the technical problem in the related art that the pressure generated in the reactor may be greater than the pressure provided by the material in the storage tank, resulting in a gap between the gate plate and the feeding pipe and causing leakage, the embodiment of the present application provides the following solution.

[0029] Please also read Figure 1 and Figure 2 The embodiment of the present application provides a gate valve 100, which includes a connecting portion 10, a closing portion 20 and a pressurizing portion 30, wherein: The connecting portion 10 is used to be arranged on a transportation pipeline, and a transportation space is provided inside the connecting portion 10 .

[0030] The closing portion 20 is arranged on the connecting portion 10, and the closing portion 20 includes a closing mechanism 21 and a closed accommodating space. The closing mechanism 21 is located in the closed accommodating space. The closed accommodating space is connected to the conveying space. The closing mechanism 21 is used to divide the conveying space into two non-connected parts or not to divide the conveying space. There is a closed accommodating space in the closing portion 20.

[0031] The boosting part 30 is arranged on the closing part 20, and has a boosting channel in the boosting part 30. One end of the boosting channel is connected to the closed accommodating space, and the other end of the boosting channel is connected to the side of the conveying space close to the reactor. The boosting part 30 is used to convey the pressure on the side of the conveying space close to the reactor to the closed accommodating space through the boosting channel, so that when the closing mechanism 21 divides the conveying space into two non-connected parts, it continuously abuts against the connecting part 10 in the conveying space in a direction parallel to the transportation direction of the material in the connecting part 10 to continuously block the conveying space.

[0032] It can be understood that the connection part 10 is a tubular structure that enables the material in the storage tank to enter the reactor through the conveying space of the connection part 10. For example, the connection part 10 can be a liquid transport pipeline, a powder transport pipeline, etc., but is not limited thereto.

[0033] The closing portion 20 is a device that can cut off the conveying space of the connecting portion 10 so that the material in the storage tank cannot enter the reactor through the conveying space, or does not cut off the conveying space of the connecting portion 10 so that the material in the storage tank can enter the reactor through the conveying space. The closing mechanism 21 is a device that can cut off the conveying space of the connecting portion 10 so that the material in the storage tank cannot enter the reactor through the conveying space, or does not cut off the conveying space of the connecting portion 10 so that the material in the storage tank can enter the reactor through the conveying space. For example, the closing mechanism 21 may include a cut-off plate, a power unit, etc., but is not limited thereto. Among them, the cut-off plate is a plate-like structure that can cut off the conveying space. For example, the cut-off plate can be an aluminum plate, a copper plate, etc., but is not limited thereto. The power unit is a device that can drive the cut-off plate to cut off the conveying space. For example, the power unit can be a driving motor, a driving cylinder, etc., but is not limited thereto.

[0034] The pressurizing unit 30 is a device that can transfer the pressure in the reaction furnace to the closed accommodation space of the closing unit 20. For example, the pressurizing unit 30 can be a gas pressure regulating valve, a vacuum pump, etc., but is not limited thereto.

[0035] From the above, it can be seen that the gate valve 100 provided in the embodiment of the present application is connected to the transportation pipeline through the connecting part 10, so that the material in the storage tank can enter the reactor through the connecting part 10; then the conveying space is divided into two non-connected parts or the conveying space is not divided through the closing mechanism 21 located in the closed accommodating space of the closing part 20, so as to realize the mutual switching of the fully closed state and the fully open state of the gate valve 100; then the pressure in the reactor is transmitted to the closed accommodating space through the boosting part 30, so that the closing mechanism 21 continues to approach the connecting part 10 under the action of pressure, and the pressure in the closed accommodating space is greater than or equal to the pressure in the reactor, so as to achieve a better sealing effect and avoid leakage caused by gaps between the closing mechanism 21 and the connecting part 10.

[0036] In some embodiments, please refer to Figure 1 and Figure 2 The connecting portion 10 includes a connecting pipe 11 and a plurality of connecting fixings 12. The connecting pipe 11 is used to connect the transport pipeline, and the connecting pipe 11 has a transport space. The plurality of connecting fixings 12 are arranged on the connecting pipe 11 to fix the connecting pipe 11 to the transport pipeline. The closing portion 20 is arranged on the connecting pipe 11.

[0037] It can be understood that the connecting pipe 11 is a tubular structure. For example, the connecting pipe 11 can be a plastic pipe, an aluminum pipe, etc., but is not limited thereto.

[0038] The connection fixture 12 is a fitting that can fix the connection pipe 11 to other pipes. For example, the connection fixture 12 can be a crimping joint, a flange, etc., but is not limited thereto.

[0039] With such arrangement, the material in the storage tank is transported to the reactor through the transport space of the connecting pipe 11, and then the connecting pipe 11 is fixed to the transport pipeline between the storage tank and the reactor through the connecting fixing member 12, so as to avoid the formation of a gap between the connecting pipe 11 and the transport pipeline, which may cause gas overflow or material leakage.

[0040] In some embodiments, please refer to Figure 1 and Figure 2 The closing portion 20 includes a gate barrel 24 , two sealing rings 22 and a pressure relief member 23 .

[0041] The gate barrel 24 is located in the middle of the connecting pipe 11 and is arranged on the connecting pipe 11 perpendicular to the transport direction of the material in the connecting pipe 11 to divide the connecting pipe 11 into two non-connected parts. The gate barrel 24 has a closed accommodating space.

[0042] The two sealing rings 22 are located in the closed accommodation space and are respectively arranged on both sides of the connection between the gate barrel 24 and the connecting pipe 11 , and the sealing rings 22 and the connecting pipe 11 are coaxial.

[0043] The pressure relief member 23 is disposed on the gate barrel 24 and communicated with the closed accommodating space, and is used for the gas in the closed accommodating space to overflow so as to reduce the pressure in the closed accommodating space.

[0044] Among them, the closing mechanism 21 is partially located in the closed accommodating space and is movably arranged on the gate barrel 24, which is used to divide the conveying space into two non-connected parts or not divide the conveying space. The boosting part 30 is arranged on the gate barrel 24, and the boosting part 30 is used to convey the pressure in the conveying space to the closed accommodating space through the boosting channel, so that the closing mechanism 21 is abutted against the sealing ring 22 in a direction parallel to the transportation direction of the material in the connecting part 10 when the conveying space is divided into two non-connected parts.

[0045] It can be understood that the gate barrel 24 is a barrel-shaped structure, which is used to provide protection for the closing mechanism 21 to prevent the closing mechanism 21 from being damaged by the external environment. For example, the material of the gate barrel 24 can be aluminum, copper, etc., but is not limited thereto.

[0046] The sealing ring 22 is an elastic annular structure, which is used to contact the closing mechanism 21 and provide better sealing performance. For example, the sealing ring 22 can be a rubber sealing ring 22, a fiber sealing ring 22, etc., but is not limited thereto. The diameter of the sealing ring 22 is larger than the diameter of the transport pipeline so that the transportation of the material in the transport pipeline will not be affected by the sealing ring 22.

[0047] The pressure relief member 23 is a component that can release the gas in the closed accommodation space to reduce the pressure in the closed accommodation space. For example, the pressure relief member 23 can be a pressure relief valve, a safety valve, etc., but is not limited thereto.

[0048] In this arrangement, the gate barrel 24 plays a sealing role and provides a moving space for the closing mechanism 21. The sealing ring 22 ensures that the closing mechanism 21 can be effectively sealed when it is in a fully closed state (dividing the conveying space into two unconnected parts) to prevent material leakage. When the closing mechanism 21 needs to switch from a fully closed state to a fully open state (without dividing the conveying space), the gas in the closed accommodation space is discharged through the pressure relief member 23 to reduce the pressure in the closed accommodation space, so that the closing mechanism 21 can smoothly switch from a fully closed state to a fully open state.

[0049] In some embodiments, see Figure 3 and Figure 4 The closing mechanism 21 includes a closing member 211 and a closing driving unit 212 .

[0050] The closing member 211 is located in the closed accommodating space and is movably disposed on the gate barrel 24, and is used to divide the conveying space into two unconnected parts or not divide the conveying space.

[0051] The closing drive unit 212 is arranged on the gate barrel 24, and the power output end of the closing drive unit 212 is connected to the closing member 211. The closing drive unit 212 is used to drive the closing member 211 to move toward one end of the gate barrel 24 away from the closing drive unit 212 to divide the conveying space into two non-connected parts, or drive the closing member 211 to move toward one end of the gate barrel 24 close to the closing drive unit 212 so that the closing member 211 does not divide the conveying space.

[0052] It can be understood that the closing member 211 is a structure that can divide the conveying space into two non-connected parts. For example, the closing member 211 can be a blind plate, an insert plate, etc., but is not limited thereto.

[0053] The closing drive unit 212 is a mechanism that can drive the closing member 211 to divide the conveying space into two non-connected parts or drive the closing member 211 not to divide the conveying space. For example, the closing drive unit 212 can be a driving motor, a driving cylinder, etc., but is not limited thereto.

[0054] With such arrangement, when it is necessary to cut off the conveying space, the closing drive unit 212 drives the closing piece 211 to move toward the end of the gate barrel 24 away from the closing drive unit 212, and makes the end of the closing piece 211 away from the closing drive unit 212 contact the gate barrel 24, thereby cutting off the conveying space; when it is not necessary to cut off the conveying space, the closing drive unit 212 drives the closing piece 211 to move toward the end of the gate barrel 24 close to the closing drive unit 212, thereby connecting the conveying space divided into two unconnected parts.

[0055] In some embodiments, see Figure 3 and Figure 4 The closing member 211 includes a fixing device 2111 , two valve plates 2112 and a moving device 2113 .

[0056] The fixing device 2111 is located in the closed accommodation space and is connected to the power output end of the closing driving unit 212 .

[0057] The two valve plates 2112 are located in the closed accommodating space perpendicular to the transport direction of the material in the connecting pipe 11 and are movably arranged on both sides of the fixing device 2111. The valve plates 2112 are used to divide the conveying space into two unconnected parts or not to divide the conveying space.

[0058] The moving device 2113 is located in the closed accommodation space and between the two valve plates 2112. The moving device 2113 is arranged on the fixing device 2111 and is respectively connected to the two valve plates 2112 for driving the two valve plates 2112 to move closer to or away from each other.

[0059] Among them, when the moving device 2113 drives the two valve plates 2112 to approach each other, the vertical distance between the two valve plates 2112 can be made smaller than the vertical distance between the two sealing rings 22; when the moving device 2113 drives the two valve plates 2112 to move away from each other, the vertical distance between the two valve plates 2112 can be made larger than the vertical distance between the two sealing rings 22.

[0060] It can be understood that the fixing device 2111 is a device that can fix the valve plate 2112 thereon. For example, the fixing device 2111 can be a locking device, a clamping device, etc., but is not limited thereto.

[0061] The valve plate 2112 is a plate-like structure that can divide the conveying space into two non-connected parts. For example, the valve plate 2112 can be an L-shaped valve plate, a T-shaped valve plate, etc., but is not limited thereto.

[0062] The moving device 2113 is a device that can drive the two valve plates 2112 to move closer to or farther from each other. For example, the moving device 2113 can be a driving motor, a driving cylinder, etc., but is not limited thereto.

[0063] With such arrangement, when it is necessary to divide the conveying space into two non-connected parts, the closing drive unit 212 drives the fixing device 2111 to move away from the closing drive unit 212, thereby driving the valve plate 2112 to move away from the closing drive unit 212. In the process of the valve plate 2112 moving away from the closing drive unit 212, the moving device 2113 brings the two valve plates 2112 closer to each other, and makes the vertical distance between the two valve plates 2112 smaller than the vertical distance between the two sealing rings 22, so that the two valve plates 2112 will not come into contact with the two sealing rings 22 in the process of moving away from the closing drive unit 212, thereby avoiding the sealing ring 22 from being damaged due to sliding friction between the sealing ring 22 and the valve plate 2112, thereby reducing the sealing performance. And to avoid the situation where the sealing ring 22 is used for a long time and the adhesion between the sealing ring 22 and the gate barrel 24 decreases, causing the valve plate 2112 to slide and rub against the sealing ring 22 during movement, causing the sealing ring 22 to fall off; when the end of the valve plate 2112 away from the closing drive part 212 collides with the gate barrel 24, the closing drive part 212 stops driving the valve plate 2112 to move, and the moving device 2113 drives the two valve plates 2112 away from each other so that the vertical distance between the two valve plates 2112 is greater than the vertical distance between the two sealing rings 22, so that the two valve plates 2112 respectively abut against the two sealing rings 22 and reduce the length of the sealing ring 22 along the material transportation direction, thereby achieving a better sealing effect.

[0064] When it is necessary to connect the two parts that are not connected to each other that are divided into the conveying space, the moving device 2113 drives the two valve plates 2112 to approach each other so that the vertical distance between the two valve plates 2112 is smaller than the vertical distance between the two sealing rings 22, so that the two valve plates 2112 are not in contact with the two sealing rings 22, and then the closing drive part 212 drives the fixing device 2111 to approach the closing drive part 212, thereby driving the valve plate 2112 to approach the closing drive part 212, so that the two parts that are not connected to each other that are divided into the conveying space are connected.

[0065] In some embodiments, see Figures 4 to 6 The fixing device 2111 includes a fixing block 21111 and an elastic supporting member 21112 .

[0066] The fixed block 21111 is located in the closed accommodating space and connected to the power output end of the closing drive unit 212, and is used to fix the valve plate 2112; L-shaped first grooves that can partially accommodate the two valve plates 2112 are respectively provided on both sides of the fixed block 21111, and one end of the valve plate 2112 is arranged in the first groove, and the width of the first groove on the side close to the closing drive unit 212 is equal to the thickness of the valve plate 2112, so that the valve plate 2112 cannot move along the moving direction of the fixed block 21111, and the width of the first groove on the side away from the closing drive unit 212 is greater than the thickness of the valve plate 2112, so that the valve plate 2112 is close to or away from the connecting pipe 11 in a direction perpendicular to the moving direction of the fixed block 21111; a second groove is provided on the inner wall of the first groove on the side away from the closing drive unit 212 in a direction perpendicular to the moving direction of the fixed block 21111; a boost hole is provided in the center of the fixed block 21111, which penetrates the fixed block 21111 along the moving direction of the fixed block 21111.

[0067] The elastic support member 21112 is located in the second groove, and is used to support the valve plate 2112 so that the valve plate 2112 moves closer to the side of the first groove away from the pressurization hole.

[0068] It can be understood that the fixing block 21111 is a structure that can partially accommodate the valve plate 2112 and limit the moving direction of the valve plate 2112. For example, the material of the fixing block 21111 can be aluminum, copper, etc., but is not limited thereto. The size of the fixing block 21111 can divide the closed accommodation space so that the closed accommodation space is divided into two non-connected parts.

[0069] The elastic support member 21112 is a component that can support the valve plate 2112 so that the valve plate 2112 is in contact with the outer wall of the first groove (the side of the first groove away from the boost hole). For example, the elastic support member 21112 can be a spring, an elastic rubber pad, etc., but is not limited thereto.

[0070] In this way, by setting the first groove to be L-shaped, support can be provided for fixing the valve plate 2112; when one end of the valve plate 2112 is located in the first groove, by making the width of the side of the first groove close to the closing drive part 212 equal to the thickness of the valve plate 2112, the valve plate 2112 cannot move in the direction of the width of the side of the first groove close to the closing drive part 212, thereby avoiding the valve plate 2112 from shaking and affecting the sealing effect; by making the width of the side of the first groove away from the closing drive part 212 greater than the thickness of the valve plate 2112, the valve plate 2112 can move vertically towards or away from the sealing ring 22 in the direction of the width of the side of the first groove away from the closing drive part 212; the elastic support member 21112 set in the second groove abuts against the valve plate 2112 located in the first groove, and continuously provides elastic force to keep the valve plate 2112 located in the first groove One end keeps a tendency to move away from the boost hole, so that when the moving device 2113 drives the two valve plates 2112 to move away from each other, both ends of the valve plate 2112 simultaneously approach the gate barrel 24, avoiding the lever phenomenon of the valve plate 2112 due to the excessive length of the valve plate 2112, so that the end of the valve plate 2112 located in the first groove conflicts with the first groove, thereby causing the movement of the valve plate 2112 to be stuck; when the valve plate 2112 is in contact with the sealing ring 22 through the boost hole opened on the fixed block 21111, the pressure transmitted to the closed accommodating space by the boost hole can be transmitted to between the two valve plates 2112 through the boost hole, so that the valve plate 2112 and the sealing ring 22 fit more closely, while improving the sealing effect, it also avoids the pressure generated in the reactor being greater than the pressure provided by the material in the storage tank, which causes a gap between the valve plate 2112 and the sealing ring 22 to cause leakage.

[0071] In some embodiments, see Figure 5 and Figure 6 The elastic support member 21112 includes a support spring 21112a and a support plate 21112b.

[0072] The support spring 21112a is located in the second groove, and one end of the support spring 21112a is connected to the inner bottom wall of the second groove.

[0073] The support plate 21112b is movably located in the second groove and connected to the other end of the support spring 21112a.

[0074] When there is no valve plate 2112 in the first groove, the support spring 21112a can make one side of the support plate 21112b tightly attached to the inner side wall of the first groove opposite to the second groove.

[0075] It can be understood that the support spring 21112a is a spring that can provide elastic force. For example, the support spring 21112a can be a compression spring, a torsion spring, etc., but is not limited thereto.

[0076] The support plate 21112b is a plate-like structure. For example, the support plate 21112b can be a copper plate, an aluminum plate, etc., but is not limited thereto.

[0077] With such arrangement, the support spring 21112a provides elastic force to keep the valve plate 2112 in contact with the support plate 21112b away from the pressure-increasing hole, thereby preventing the valve plate 2112 from having a lever phenomenon when the moving device 2113 drives the two valve plates 2112 away from each other. By arranging the support plate 21112b so that the support spring 21112a is in indirect contact with the valve plate 2112 instead of making the support spring 21112a in direct contact with the valve plate 2112, the force on the valve plate 2112 can be uniform, thereby ensuring that the moving speeds of various regions on the valve plate 2112 are consistent.

[0078] In some embodiments, see Figure 7 The moving device 2113 includes a connecting rod 21131, a receiving portion 21132, a gear 21133, two racks 21134 and a moving driving portion 21135.

[0079] The connecting rod 21131 is located between the two valve plates 2112 , and one end of the connecting rod 21131 is connected to the fixing block 21111 .

[0080] The accommodating portion 21132 is located between the two valve plates 2112 and connected to the other end of the connecting rod 21131 . The accommodating portion 21132 has a first accommodating space and two second accommodating spaces therein, and the first accommodating space is communicated with the two second accommodating spaces.

[0081] The gear 21133 is rotatably disposed in the first accommodating space.

[0082] The two racks 21134 are movably disposed in the two second accommodating spaces, respectively, and are meshed with the gears 21133, respectively. One end of the two racks 21134 away from the gears 21133 is connected to the two valve plates 2112, respectively.

[0083] The mobile driving unit 21135 is located between the two valve plates 2112 and is arranged on the accommodating portion 21132. The power output end of the mobile driving unit 21135 is connected to the gear 21133. The mobile driving unit 21135 is used to drive the gear 21133 to rotate to drive the two racks 21134 meshing with the gear 21133 to move so as to make the two valve plates 2112 approach or move away from each other.

[0084] It can be understood that the connecting rod 21131 is a rod-shaped structure. For example, the connecting rod 21131 can be an aluminum rod, a copper rod, etc., but is not limited thereto.

[0085] The accommodating portion 21132 is a shell-like structure. For example, the connecting rod 21131 can be an aluminum shell, a copper shell, etc., but is not limited thereto.

[0086] Gear 21133 is a wheel-shaped structure with teeth on the rim. For example, gear 21133 can be a cylindrical gear, a bevel gear, etc., but is not limited to these.

[0087] The rack 21134 is a long strip structure with teeth on one side. For example, the gear 21133 can be a spur rack, a helical rack, etc., but is not limited to this.

[0088] The mobile driving unit 21135 is a driving device that can drive the gear 21133 to rotate. For example, the mobile driving unit 21135 can be a driving motor, a driving motor, etc., but is not limited thereto.

[0089] In this configuration, the position of the accommodating portion 21132 and the fixed block 21111 are fixed by the connecting rod 21131, so that the fixed block 21111 can move with the movement of the fixed block 21111 and is always located between the two valve plates 2112. Through the meshing of the gear 21133 and the two racks 21134, when the mobile driving portion 21135 drives the gear 21133 to rotate, the gear 21133 drives the two racks 21134 meshing therewith to move closer to or farther from each other, thereby driving the valve plate 2112 connected to the racks 21134 to move closer to or farther from each other, so that the valve plate 2112 is separated from the sealing ring 22 or the valve plate 2112 and the sealing ring 22 are in close contact with each other through the driving force provided by the mobile driving portion 21135.

[0090] In some embodiments, see Figure 1 and Figure 2 The boosting unit 30 includes a boosting pipe 31 and a pressure sensing member 32 .

[0091] One end of the boosting pipe 31 is connected to the side of the connecting pipe 11 close to the reactor, and the other end of the boosting pipe 31 is connected to the gate barrel 24 . The boosting pipe 31 has a boosting channel therein.

[0092] The pressure sensing member 32 is located in the boosting channel and is arranged on the boosting pipe 31. The pressure sensing member 32 is used to separate the boosting channel into two unconnected parts or not separate the boosting channel so that the gas in the conveying space can reach the closed accommodating space through the boosting channel.

[0093] It can be understood that the boost pipe 31 is a tubular structure. For example, the boost pipe 31 can be a plastic pipe, an aluminum pipe, etc., but is not limited thereto.

[0094] The pressure-sensing member 32 is a component that can automatically separate or not separate the pressurization channel according to the pressure. For example, the pressure-sensing member 32 can be a safety valve, a pressure reducing valve, etc., but is not limited thereto.

[0095] With such arrangement, the pressure in the reactor can be transmitted to the closed accommodating space through the boosting channel of the boosting pipe 31 via the boosting channel connected to the conveying space; when the pressure in the reactor is lower than the triggering pressure of the pressure-sensitive element 32, the pressure-sensitive element 32 separates the boosting channel into two non-connected parts, so that the pressure in the reactor cannot be transmitted to the closed accommodating space through the boosting channel, thereby ensuring that the reaction environment in the reactor is qualified; when the pressure in the reactor is greater than or equal to the triggering pressure of the pressure-sensitive element 32, the pressure-sensitive element 32 does not separate the boosting channel, so that the pressure in the reactor is transmitted to the closed accommodating space, so that the pressure in the closed accommodating space is greater than or equal to the pressure in the reactor, thereby avoiding leakage caused by a gap between the valve plate 2112 and the sealing ring 22 due to the pressure generated in the reactor being greater than the pressure provided by the material in the storage tank.

[0096] In some embodiments, see Figure 2 The pressure sensing member 32 includes a closing plate 321 and a pressure sensing spring 322 .

[0097] The closing plate 321 is located in the boosting channel and is movably disposed on the boosting pipe 31 .

[0098] The pressure-sensing spring 322 is located in the boost channel, one end of the pressure-sensing spring 322 is connected to the closing plate 321, and the other end of the pressure-sensing spring 322 is connected to the boost pipe 31. The pressure-sensing spring 322 is used to provide elastic force so that the closing plate 321 separates the boost channel into two non-connected parts.

[0099] It can be understood that the closing plate 321 is a plate-like structure that can seal the boost pipe 31. For example, the closing plate 321 can be a metal sealing plate, a soft sealing plate, etc., but is not limited thereto.

[0100] The pressure-sensing spring 322 is an elastic member that can provide elastic force to drive the closing plate 321 so that the closing plate 321 separates the boost channel into two non-connected parts. For example, the pressure-sensing spring 322 can be a compression spring, a torsion spring, etc., but is not limited thereto.

[0101] With such arrangement, when the pressure in the reactor is less than the elastic force provided by the pressure-sensitive spring 322, the closing plate 321 is supported by the pressure-sensitive spring 322 and separates the pressurization channel into two unconnected parts, and the pressure in the reactor cannot enter the closed accommodation space through the pressurization channel; when the pressure in the reactor is greater than the elastic force provided by the pressure-sensitive spring 322, the pressure-sensitive spring 322 is compressed so that the closing plate 321 moves, thereby connecting the two unconnected parts of the pressurization channel, and the pressure in the reactor is transmitted to the closed accommodation space through the pressurization channel.

[0102] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A gate valve, characterized in that: Applied to the transport pipeline between the storage tank and the reactor, the storage tank is located above the reactor, and the gate valve includes: A connecting part, the connecting part is used to be arranged on the transport pipeline, and the connecting part has a transport space therein; a closing portion, the closing portion being arranged on the connecting portion, the closing portion comprising a closing mechanism and a closed accommodating space, the closed accommodating space being in communication with the conveying space, the closing mechanism being located in the closed accommodating space, and the closing mechanism being used to divide the conveying space into two unconnected parts or not to divide the conveying space; and A boosting part, wherein the boosting part is arranged on the closing part, and wherein a boosting channel is provided in the boosting part, wherein one end of the boosting channel is communicated with the closed accommodating space, and the other end of the boosting channel is communicated with a side of the conveying space close to the reactor, and wherein the boosting part is used to convey the pressure on the side of the conveying space close to the reactor to the closed accommodating space through the boosting channel, so that when the closing mechanism divides the conveying space into two non-connected parts, the closing mechanism continuously abuts against the connecting part in the conveying space in a direction parallel to the transport direction of the material in the connecting part to continuously block the conveying space.

2. The gate valve according to claim 1, characterized in that: The connecting portion comprises: a connecting pipe, used to connect the transport pipeline, wherein the connecting pipe has the transport space; and A plurality of connection fixing members, arranged on the connection pipe, for fixing the connection pipe to the transport pipeline; Wherein, the closing portion is arranged on the connecting pipe.

3. The gate valve according to claim 2, characterized in that: The closure portion comprises: A gate barrel, located in the middle of the connecting pipe and arranged on the connecting pipe perpendicular to the transport direction of the material in the connecting pipe, for dividing the connecting pipe into two unconnected parts, the gate barrel having the closed accommodation space; Two sealing rings are located in the closed accommodation space and are respectively arranged on both sides of the connection between the gate barrel and the connecting pipe, and the sealing rings are coaxial with the connecting pipe; and A pressure relief member, disposed on the gate barrel and connected to the closed accommodating space, for allowing the gas in the closed accommodating space to overflow so as to reduce the pressure in the closed accommodating space; Wherein, the closing mechanism is partially located in the closed accommodating space and is movably arranged on the gate barrel, the boosting part is arranged on the gate barrel, and the boosting part is used to transport the pressure in the conveying space to the closed accommodating space through the boosting channel, so that the closing mechanism can be abutted against the sealing ring in a direction parallel to the transportation direction of the material in the connecting part when the conveying space is divided into two non-connected parts.

4. The gate valve according to claim 3, characterized in that: The closing mechanism comprises: a closing member, located in the closed accommodating space and movably disposed on the gate barrel, for dividing the conveying space into two unconnected parts or not dividing the conveying space; and A closing drive unit is arranged on the gate barrel, and a power output end of the closing drive unit is connected to the closing member. The closing drive unit is used to drive the closing member to move toward an end of the gate barrel away from the closing drive unit to divide the conveying space into two non-connected parts, or to drive the closing member to move toward an end of the gate barrel close to the closing drive unit so that the closing member does not divide the conveying space.

5. The gate valve according to claim 4, characterized in that: The closure element comprises: A fixing device, located in the closed accommodation space and connected to the power output end of the closed driving part; two valve plates, located in the closed accommodation space perpendicular to the conveying direction of the material in the connecting pipe, and movably disposed on both sides of the fixing device, respectively, the valve plates being used to divide the conveying space into two non-communicating parts or not to divide the conveying space; and A moving device, located in the closed accommodation space and between the two valve plates, the moving device is arranged on the fixing device and is respectively connected to the two valve plates, and is used to drive the two valve plates to move closer to or away from each other; When the moving device drives the two valve plates to move closer to each other, the vertical distance between the two valve plates can be smaller than the vertical distance between the two sealing rings; when the moving device drives the two valve plates to move away from each other, the vertical distance between the two valve plates can be larger than the vertical distance between the two sealing rings.

6. The gate valve according to claim 5, characterized in that The fixing device comprises: A fixed block, located in the closed accommodating space and connected to the power output end of the closing drive unit, for fixing the valve plate; L-shaped first grooves capable of partially accommodating the two valve plates are respectively provided on both sides of the fixed block, one end of the valve plate is arranged in the first groove, the width of the first groove on the side close to the closing drive unit is equal to the thickness of the valve plate, so that the valve plate cannot move along the moving direction of the fixed block, and the width of the first groove on the side away from the closing drive unit is greater than the thickness of the valve plate, so that the valve plate approaches or moves away from the connecting pipe in a direction perpendicular to the moving direction of the fixed block; a second groove is provided on the inner wall of the first groove on the side away from the closing drive unit in a direction perpendicular to the moving direction of the fixed block; a pressurizing hole is provided in the center of the fixed block and penetrates the fixed block in the moving direction of the fixed block; and The elastic support member is located in the second groove and is used for abutting against the valve plate to move the valve plate closer to the first groove and away from the pressure increasing hole.

7. The gate valve according to claim 6, characterized in that The elastic support member comprises: a support spring, located in the second groove, one end of the support spring being connected to an inner bottom wall of the second groove; and a support plate, movably located in the second groove and connected to the other end of the support spring; Wherein, when the valve plate is not in the first groove, the support spring can make one side of the support plate closely attached to the inner side wall of the first groove opposite to the second groove.

8. The gate valve according to claim 6, characterized in that The mobile device comprises: A connecting rod, located between the two valve plates, one end of the connecting rod being connected to the fixing block; a receiving portion, located between the two valve plates and connected to the other end of the connecting rod, wherein the receiving portion has a first receiving space and two second receiving spaces, and the first receiving space is connected to the two second receiving spaces; a gear, rotatably disposed in the first accommodation space; Two racks are movably disposed in the two second accommodating spaces, respectively, and mesh with the gears, respectively; one end of the two racks away from the gears is connected to the two valve plates, respectively; and The mobile driving part is located between the two valve plates and is arranged on the accommodating part. The power output end of the mobile driving part is connected to the gear. The mobile driving part is used to drive the gear to rotate to drive the two racks meshing with the gear to move so as to move the two valve plates closer to or farther away from each other.

9. The gate valve according to claim 3, characterized in that: The booster unit comprises: a boosting pipe, one end of which is connected to a side of the connecting pipe close to the reactor, the other end of which is connected to the sluice barrel, and the boosting pipe has the boosting channel therein; and A pressure-sensitive member is located in the boosting channel and is arranged on the boosting pipe. The pressure-sensitive member is used to separate the boosting channel into two unconnected parts or not separate the boosting channel so that the gas in the conveying space can reach the closed accommodating space through the boosting channel.

10. The gate valve according to claim 9, characterized in that The pressure sensing member comprises: a closing plate, located in the boosting channel and movably disposed on the boosting pipe; and A pressure-sensitive spring is located in the boost channel, one end of the pressure-sensitive spring is connected to the closing plate, and the other end of the pressure-sensitive spring is connected to the boost pipe. The pressure-sensitive spring is used to provide elastic force so that the closing plate separates the boost channel into two non-connected parts.

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