Leak-proof high-temperature power station gate valve
By using the design of secondary sealing pressure plate and sealing gasket in the gate valve of high-temperature power station, combined with automatic alarm detection components, the problem of easy leakage of the gate valve is solved, and the leakage prevention effect of the gate valve and on-site safety are achieved.
Patent Information
- Application Number
- CN202421063232.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-16
AI Technical Summary
Existing gate valves are prone to leakage in high-temperature power plants, causing pipe media to flow out and causing losses, especially in special environments of power plants, which may cause site property losses.
A gate valve for anti-leakage high-temperature power station is designed, and the secondary sealing pressure plate is used to clamp the transmission position of the gate valve main body, combining the design of the first and second sealing gaskets to ensure that the passage of the gate valve main body is sealed when closed, and pass the detection component. Automatically alarm when a leak occurs.
It effectively avoids leakage from the main body of the gate valve, ensures safety and property protection at the power station, and reduces losses caused by leakage.
Smart Images
Figure CN222437061U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gate valves, in particular to a leakage-proof high-temperature power station gate valve. Background Art
[0002] A gate valve is an opening and closing component, the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened or fully closed, and cannot be adjusted or throttled. In the field of high-temperature power stations, gate valves are often used to control the flow of media in pipelines.
[0003] In the prior art, gate valves require regular inspection and maintenance. During use, gate valve leakage may occur. This is mainly because the rod that drives the gate valve upper station plate to move is prone to gaps, resulting in leakage. When such leakage occurs, the medium in the pipeline will continue to flow out. If it is not discovered in time, it will cause losses. Due to the special environment of the power station, if it flows on the equipment, it may also cause on-site property losses. In view of the shortcomings of the prior art, the utility model provides a leakage-proof high-temperature power station gate valve to solve the above problems. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a leakage-proof high-temperature power station gate valve, which has a transmission position leakage-proof function when in use. When the channel of the gate valve body is closed, when the gate plate body is clamped with the bottom of the gate plate cavity, the secondary sealing pressure plate is clamped with the top transmission position of the gate valve body, thereby achieving closure of the internal channel of the gate valve body, and at the same time achieving secondary sealing at the active position between the transmission rod and the gate valve body, ensuring good leakage-proof effect of the gate valve body. When the gate plate body is opened, the gate plate body will eventually drive the first sealing gasket to fit with the top of the gate valve body, strengthen the sealing of this position, and ensure good sealing effect of the gate valve body, thereby avoiding leakage of the gate valve body and causing losses on the power station site.
[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a leakage-proof high-temperature power station gate valve, comprising a gate valve body, a gate cavity is provided inside the gate valve body, a gate body is slidably connected inside the gate cavity, a transmission rod is fixedly connected to the top of the gate body, the transmission rod passes through the gate valve body and is fixedly connected to a secondary sealing pressure plate;
[0006] A screw rod is arranged on the top of the secondary sealing pressure plate, a support frame is arranged on the top of the gate valve body, a rotating disk is rotatably connected to the support frame, and the rotating disk is threadedly connected to the screw rod.
[0007] Preferably, a detection component for leakage alarm is provided on the gate valve body, and the detection component includes a detection groove opened on the top of the gate valve body, and a temperature sensor is provided inside the detection groove.
[0008] Preferably, a positioning plate is fixedly connected to the temperature sensor, a mounting seat is provided on the gate valve body, and the mounting seat and the positioning plate are fixed by bolts.
[0009] Preferably, a first sealing gasket is fixedly connected to the gate body.
[0010] Preferably, a second sealing gasket is fixedly connected to the secondary sealing pressure plate.
[0011] Preferably, flanges for installation with external pipelines are provided on both sides of the gate valve body.
[0012] The utility model discloses a leakage-proof high-temperature power station gate valve, which has the following beneficial effects:
[0013] The anti-leakage high-temperature power station gate valve has a transmission position anti-leakage function when in use. When the channel of the gate valve body is closed, when the gate body is clamped with the bottom of the gate cavity, the secondary sealing pressure plate is clamped with the top transmission position of the gate valve body, thereby closing the internal channel of the gate valve body, and at the same time realizing secondary sealing at the active position between the transmission rod and the gate valve body, ensuring good anti-leakage effect of the gate valve body. When the gate body is opened, the gate body will eventually drive the first sealing gasket to fit with the top of the gate valve body, strengthen the sealing of this position, and ensure good sealing effect of the gate valve body, thereby avoiding leakage of the gate valve body and causing losses to the power station site. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a cross-sectional view of the utility model;
[0017] Figure 3 This is a disassembly diagram of the temperature sensor of the present utility model.
[0018] In the figure: 1. gate valve body; 101. gate cavity; 2. gate body; 201. first sealing gasket; 3. transmission rod; 4. secondary sealing pressure plate; 401. second sealing gasket; 5. screw rod; 6. support frame; 7. rotating disk; 8. detection slot; 9. temperature sensor; 901. positioning plate; 902. mounting seat. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] The embodiment of the present application provides a leakage-proof high-temperature power station gate valve, which solves the problem in the prior art that the gate valve needs regular inspection and maintenance. During use, the gate valve may leak. This is mainly because the rod that drives the station plate on the gate valve to move is prone to gaps, resulting in leakage. When such leakage occurs, the medium in the pipeline will continue to flow out. If it is not discovered in time, it will cause losses. Due to the special environment of the power station, if it flows on the equipment, it may also cause on-site property losses.
[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0022] The utility model embodiment discloses a leakage-proof high-temperature power station gate valve. Figure 1-3 As shown, it comprises a gate valve body 1, a gate cavity 101 is provided inside the gate valve body 1, a gate body 2 is slidably connected inside the gate cavity 101, a transmission rod 3 is fixedly connected to the top of the gate body 2, and the transmission rod 3 passes through the gate valve body 1 and is fixedly connected to a secondary sealing pressure plate 4;
[0023] A screw rod 5 is provided on the top of the secondary sealing pressure plate 4 , and a support frame 6 is provided on the top of the gate valve body 1 . A rotating disk 7 is rotatably connected to the support frame 6 , and the rotating disk 7 is threadedly connected to the screw rod 5 .
[0024] Furthermore, a detection component for leakage alarm is provided on the gate valve body 1, and the detection component includes a detection groove 8 opened on the top of the gate valve body 1, and a temperature sensor 9 is provided inside the detection groove 8. In accordance with the design of the detection component, the detection groove 8 is set on the top of the gate valve body 1. When leakage occurs at the position of the transmission rod 3 and the gate valve body 1, the leakage medium will enter the detection groove 8, greatly increasing the detection temperature of the temperature sensor 9. The temperature sensor 9 is connected to a computer. When the set alarm threshold is exceeded, an automatic alarm is sounded through the computer and the alarm, prompting on-site inspection and maintenance.
[0025] Furthermore, a positioning plate 901 is fixedly connected to the temperature sensor 9, and a mounting seat 902 is provided on the gate valve body 1. The mounting seat 902 and the positioning plate 901 are fixed by bolts. The design of the mounting seat 902 and the positioning plate 901 makes it easy to disassemble and assemble the temperature sensor 9 and easy to maintain.
[0026] A first sealing gasket 201 is fixedly connected to the gate body 2, and a second sealing gasket 401 is fixedly connected to the secondary sealing pressure plate 4. The first sealing gasket 201 and the second sealing gasket 401 are arranged to improve the sealing performance of the active position of the gate valve body 1, ensuring a good anti-leakage effect.
[0027] Flanges for mounting with external pipelines are provided on both sides of the gate valve body 1 .
[0028] The anti-leakage high-temperature power station gate valve has a transmission position anti-leakage function when in use. When closing the channel of the gate valve body 1, the rotating disk 7 can be directly rotated. When the rotating disk 7 is rotated, the rotating disk 7 drives the screw rod 5 to move, the screw rod 5 drives the secondary sealing pressure plate 4 to move, the secondary sealing pressure plate 4 drives the transmission rod 3 to move, and the transmission rod 3 drives the gate body 2 to move. When the gate body 2 is clamped with the bottom of the gate cavity 101, the secondary sealing pressure plate 4 is clamped with the top transmission position of the gate valve body 1, thereby realizing the closure of the internal channel of the gate valve body 1, and at the same time realizing secondary sealing at the active position between the transmission rod 3 and the gate valve body 1, ensuring that the anti-leakage effect of the gate valve body 1 is good;
[0029] When the gate body 2 is opened, the gate body 2 will eventually drive the first sealing gasket 201 to fit with the top of the gate valve body 1, thereby strengthening the sealing performance at this position and ensuring a good sealing effect of the gate valve body 1;
[0030] At the same time, in conjunction with the design of the detection component, a detection groove 8 is set on the top of the gate valve body 1. When leakage occurs between the transmission rod 3 and the gate valve body 1, the leaking medium will enter the detection groove 8, greatly increasing the detection temperature of the temperature sensor 9. The temperature sensor 9 is connected to a computer. When the set alarm threshold is exceeded, an automatic alarm is issued through the computer and the alarm, prompting on-site inspection and maintenance.
Claims
1. A leakage-proof high-temperature power station gate valve, comprising a gate valve body (1), wherein a gate plate cavity (101) is provided inside the gate valve body (1), and a gate plate body (2) is slidably connected inside the gate plate cavity (101), characterized in that: The top of the gate body (2) is fixedly connected to a transmission rod (3), and the transmission rod (3) passes through the gate valve body (1) and is fixedly connected to a secondary sealing pressure plate (4); A screw rod (5) is provided at the top of the secondary sealing pressure plate (4), and a support frame (6) is provided at the top of the gate valve body (1). A rotating disk (7) is rotatably connected to the support frame (6), and the rotating disk (7) is threadedly connected to the screw rod (5).
2. The anti-leakage high-temperature power station gate valve according to claim 1, characterized in that: The gate valve body (1) is provided with a detection component for leakage alarm, the detection component comprising a detection groove (8) opened on the top of the gate valve body (1), and a temperature sensor (9) is provided inside the detection groove (8).
3. The anti-leakage high-temperature power station gate valve according to claim 2, characterized in that: A positioning plate (901) is fixedly connected to the temperature sensor (9), a mounting seat (902) is provided on the gate valve body (1), and the mounting seat (902) and the positioning plate (901) are fixed by bolts.
4. The anti-leakage high-temperature power station gate valve according to claim 1, characterized in that: A first sealing gasket (201) is fixedly connected to the gate body (2).
5. The anti-leakage high-temperature power station gate valve according to claim 4, characterized in that: A second sealing gasket (401) is fixedly connected to the secondary sealing pressure plate (4).
6. The anti-leakage high-temperature power station gate valve according to claim 1, characterized in that: Flanges for mounting on external pipelines are provided on both sides of the gate valve body (1).