External protection structure for flow control valve of gas turbine

By designing the sealing structure of the combo frame, fixed combo plate and movable combo plate outside the fuel flow control valve, combined with the cooling system, the problem of humid air intrusion is solved, ensuring the stable operation of the fuel engine and the accuracy of the internal components.

CN223227953UActive Publication Date: 2025-08-15SHANGHAI LISHUN GAS TURBINE TECH CO LTD
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Patent Information

Application Number
CN202422797635.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-08-15
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

Humid air can easily invade the flow control valve of the gas turbine, affecting its internal component accuracy and the stable operation of the gas engine.

Method used

A gas engine flow control valve external protection structure is designed, including a combination frame, a fixed combination plate and a movable combination plate, which is sealed with rubber rings and grooves, combined with the connection between the rubber frame and the raised block, and a heat exchange pipe and a circulating pump system for cooling to prevent humid air from invading and reduce the internal temperature.

Benefits of technology

Effectively prevent humid air from invading the flow control valve, ensure the accuracy of internal components, and ensure the stable and efficient operation of the gas engine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of valve body protection structures, and discloses a gas turbine flow control valve outer protection structure which comprises a flow control valve body, an outer protection mechanism is arranged on the outer wall of the flow control valve body, the outer protection mechanism comprises a combination frame, a fixed combination plate is fixedly installed on the right side of the combination frame, and the fixed combination plate is fixedly installed on the right side of the combination frame. And the left side of the combined frame is movably connected with a movable combined plate. Through the cooperation of the combination frame, the fixed combination plate and the movable combination plate, the flow control valve can be assembled on the outer surface of the flow control valve body, through the design of the rubber ring, the connection positions of the fixed combination plate, the movable combination plate and the flow control valve body can be sealed, and through the cooperation of the rubber frame and the groove, the flow control valve body can be conveniently assembled. And the joint of the combined frame and the movable combined plate can be sealed, the problem that damp air easily invades into the flow control valve body is solved, and the precision of components in the flow control valve body is guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of valve body protection structures, in particular to an external protection structure for a flow control valve of a combustion engine. Background Art

[0002] Flow control valves are widely used in gas turbines. They control fuel flow and pressure, ensuring stable engine operation under varying operating conditions. They also control fluid temperature and viscosity, improving engine efficiency and performance. Flow control valves operate by regulating the flow of fluid through a pipeline. When the valve is open, fluid can flow through the pipeline, while when closed, it prevents fluid from flowing through the pipeline. By controlling the degree of opening and closing of the valve, precise control of fluid flow in the pipeline can be achieved.

[0003] The flow control valve will be used in various environments with the gas turbine. If the humidity in the operating environment is high, humid air will easily invade the interior of the flow control valve, affecting the accuracy of the internal components of the flow control valve, thereby affecting the stable operation of the gas turbine. Utility Model Content

[0004] The purpose of the utility model is to provide an external protection structure for a flow control valve of a combustion engine, so as to solve the problem in the prior art that moist air easily invades the interior of the flow control valve when the valve is used in an environment with high humidity.

[0005] The utility model provides the following technical solutions: an external protection structure of a gas engine flow control valve, comprising a flow control valve body, an external protection mechanism being provided on the outer wall of the flow control valve body, the external protection mechanism comprising a combination frame, a fixed combination plate being fixedly mounted on the right side of the combination frame, a movable combination plate being movably connected to the left side of the combination frame, rubber rings being fixedly connected to the inner walls of the fixed combination plate and the movable combination plate, the inner wall of the rubber ring being movably connected to the outer wall of the flow control valve body, a groove being provided on the right side of the movable combination plate, a rubber frame being fixedly connected to the left side of the combination frame, and the rubber frame being movably inserted into the inner cavity of the groove.

[0006] As a preferred embodiment of the above technical solution, a connecting frame member is fixedly mounted on the outer wall of the combination frame, and a protruding block is fixedly mounted on the outer wall of the movable combination plate, and the protruding block is movably inserted into the inner cavity of the connecting frame member.

[0007] With the above technical solution, the cooperation between the protruding blocks and the connecting frame pieces makes it easy for users to connect the combination frame and the movable combination board.

[0008] As a preferred embodiment of the above technical solution, the connecting frame is threadedly connected to a connecting bolt on the side away from the combination frame, and an anti-slip protrusion is provided on the outer surface of the connecting bolt. The threaded end of the connecting bolt extends into the inner cavity of the connecting frame and is movably connected to the outer wall of the protrusion block.

[0009] Through the above technical solution and the design of the connecting bolt, it is convenient for the user to position the protruding block in the connecting frame.

[0010] As a preferred embodiment of the above technical solution, a No. 1 strip tube is fixedly installed on the inner wall of the combination frame, a heat exchange tube is fixedly connected between the two No. 1 strip tubes overlapping in the vertical direction, and a No. 2 strip tube is fixedly connected to the side away from each other of the two groups of No. 1 strip tubes overlapping in the vertical direction.

[0011] Through the above technical solution, through the design of the heat exchange tube, when the coolant flows through its inner cavity, the air inside the combination frame can be cooled, thereby ensuring the safe operation of the flow control valve body.

[0012] As a preferred embodiment of the above technical solution, a hollow ring is fixedly installed on the back of the combination frame, a hollow plate located below the hollow ring is fixedly installed on the back of the combination frame, a copper pipe is fixedly connected between the hollow ring and the hollow plate, and a circulating pump is fixedly installed on the bottom of the hollow plate.

[0013] Through the above technical solution, the design of the circulation pump can drive the coolant to circulate, thereby facilitating cooling of the air inside the combination frame.

[0014] As a preferred embodiment of the above technical solution, the input pipe of the circulation pump is fixedly connected to the bottom of the hollow plate, the output pipe of the circulation pump is fixedly connected to the outer wall of the No. 2 strip tube located below, and the outer wall of the No. 2 strip tube located above is fixedly connected to the top of the hollow ring through a water pipe.

[0015] As a preferred embodiment of the above technical solution, a hollow vertical pipe is fixedly installed on the top of the hollow plate, an air outlet is opened on the outer wall of the hollow vertical pipe, a bent pipe is fixedly connected to the top of the hollow vertical pipe, and a cylindrical fan is fixedly connected to the end of the bent pipe away from the hollow vertical pipe.

[0016] Through the above technical solution, through the design of the cylindrical fan, normal temperature air can be absorbed and output from the air outlet to cool the coolant inside the copper tube.

[0017] As a preferred embodiment of the above technical solution, a connector is movably connected to one end of the cylindrical fan away from the elbow, and an extension hose is fixedly connected to one end of the connector away from the cylindrical fan.

[0018] Through the above technical solution and the design of the connector, it is convenient for users to replace extension hoses of different lengths.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model can be assembled to the outer surface of the flow control valve body through the cooperation of the combination frame, the fixed combination plate and the movable combination plate, so as to surround and protect the flow control valve body. The connection between the fixed combination plate, the movable combination plate and the flow control valve body can be sealed through the design of the rubber ring. The connection between the combination frame and the movable combination plate can be sealed through the cooperation of the rubber frame and the groove, so as to avoid the problem that humid air can easily invade the interior of the flow control valve body, thereby ensuring the accuracy of the internal components of the flow control valve body and the stable operation of the gas turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the exploded structure of the combination frame, fixed combination plate and movable combination plate of the utility model;

[0023] Figure 3 This is a structural diagram of the combination frame of the utility model;

[0024] Figure 4 This is a structural diagram of the hollow vertical pipe of the utility model.

[0025] In the figure: 1. Flow control valve body; 2. External protection mechanism; 21. Combination frame; 22. Fixed combination plate; 23. Movable combination plate; 231. Groove; 232. Raised block; 233. Connecting frame; 24. Rubber ring; 25. Rubber frame; 26. Strip tube No. 1; 261. Heat exchange tube; 262. Strip tube No. 2; 263. Hollow ring; 264. Hollow plate; 265. Copper tube; 266. Circulation pump; 27. Hollow vertical pipe; 271. Air outlet; 272. Cylindrical fan; 273. Connector; 274. Extension hose. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] like Figures 1-4As shown, the utility model provides a technical solution: an external protection structure of a gas turbine flow control valve, comprising a flow control valve body 1, an external protection mechanism 2 is provided on the outer wall of the flow control valve body 1, the external protection mechanism 2 comprises a combination frame 21, a fixed combination plate 22 is fixedly installed on the right side of the combination frame 21, a movable combination plate 23 is movably connected to the left side of the combination frame 21, a rubber ring 24 is fixedly connected to the inner wall of the fixed combination plate 22 and the movable combination plate 23, the inner wall of the rubber ring 24 is movably connected to the outer wall of the flow control valve body 1, a groove 231 is provided on the right side of the movable combination plate 23, and the left side of the combination frame 21 is fixed A rubber frame 25 is fixedly connected, and the rubber frame 25 is movably inserted into the inner cavity of the groove 231. The combination frame 21, the fixed combination plate 22 and the movable combination plate 23 can be assembled to the outer surface of the flow control valve body 1 to surround and protect the flow control valve body 1. Through the design of the rubber ring 24, the connection between the fixed combination plate 22, the movable combination plate 23 and the flow control valve body 1 can be sealed. Through the cooperation of the rubber frame 25 and the groove 231, the connection between the combination frame 21 and the movable combination plate 23 can be sealed to prevent the problem of humid air in the environment from easily invading the interior of the flow control valve body 1.

[0028] As an implementation method in this embodiment, Figure 1-Figure 2 As shown, a connecting frame part 233 is fixedly installed on the outer wall of the combination frame 21, and a protruding block 232 is fixedly installed on the outer wall of the movable combination plate 23. The protruding block 232 is movably inserted into the inner cavity of the connecting frame part 233, and the connecting frame part 233 is threadedly connected to a connecting bolt on the side away from the combination frame 21. The outer surface of the connecting bolt is provided with an anti-slip protrusion, and the threaded end of the connecting bolt extends into the inner cavity of the connecting frame part 233 and is movably connected to the outer wall of the protruding block 232. The combination frame 21 is sleeved on the outer wall of the flow control valve body 1 through the rubber ring 24, and then the movable combination plate 23 is sleeved on the outer wall of the flow control valve body 1, followed by the protruding block 232 being completely inserted into the interior of the connecting frame part 233, and then the connecting bolt on the outer wall of the connecting frame part 233 is tightened, and the combination frame 21, the fixed combination plate 22 and the movable combination plate 23 can be assembled on the outer wall of the flow control valve body 1.

[0029] As an implementation method in this embodiment, Figure 1 、 Figure 3 、 Figure 4As shown, a No. 1 strip tube 26 is fixedly installed on the inner wall of the combination frame 21, and a heat exchange tube 261 is fixedly connected between the two No. 1 strip tubes 26 overlapping in the vertical direction, and a No. 2 strip tube 262 is fixedly connected to the side away from each other of the two groups of No. 1 strip tubes 26 overlapping in the vertical direction. A hollow ring 263 is fixedly installed on the back of the combination frame 21, and a hollow plate 264 located below the hollow ring 263 is fixedly installed on the back of the combination frame 21. A copper tube 265 is fixedly connected between the hollow ring 263 and the hollow plate 264, and a copper tube 265 is fixedly installed on the bottom of the hollow plate 264. Circulation pump 266, the input pipe of circulation pump 266 is fixedly connected to the bottom of hollow plate 264, the output pipe of circulation pump 266 is fixedly connected to the outer wall of No. 2 strip pipe 262 located below, the outer wall of No. 2 strip pipe 262 located above is fixedly connected to the top of hollow ring 263 through a water pipe, a hollow vertical pipe 27 is fixedly installed on the top of hollow plate 264, an air outlet hole 271 is opened on the outer wall of hollow vertical pipe 27, a bend pipe is fixedly connected to the top of hollow vertical pipe 27, and a cylindrical fan 272 is fixedly connected to the end of the bend pipe away from the hollow vertical pipe 27. 2. The end of the pipe away from the elbow is movably connected with a connector 273. The end of the connector 273 away from the cylindrical fan 272 is fixedly connected with an extension hose 274. The circulation pump 266 is controlled to work and the cooling liquid inside the hollow plate 264 can be extracted. The cooling liquid circulates through the lower second strip tube 262, the lower first strip tube 26, the heat exchange tube 261, the upper first strip tube 26, the upper second strip tube 262, the hollow ring 263 and the inner cavity of the copper tube 265. During the circulation process, the cooling liquid can heat the air in the inner cavity of the combination frame 21 with the help of the heat exchange tube 261. The cooling treatment avoids the problem that the internal components of the flow control valve body 1 are easily damaged by high temperature when conveying high-temperature media. The length of the extension hose 274 is designed according to the use environment, so that the active end of the extension hose 274 is away from the heat source in the environment. The cylindrical fan 272 is controlled to work and absorb normal temperature air from the active end of the extension hose 274. The normal temperature air is then sprayed from the air outlet 271 to the outer surface of the copper tube 265, thereby quickly cooling the heated coolant inside the copper tube 265, thereby ensuring the cooling protection effect of the flow control valve body 1.

[0030] Working principle: When in use, first sleeve the combination frame 21 on the outer wall of the flow control valve body 1 through the rubber ring 24, and then sleeve the movable combination plate 23 on the outer wall of the flow control valve body 1, and then make the raised block 232 completely inserted into the interior of the connecting frame 233, and then tighten the connecting bolt on the outer wall of the connecting frame 233, and then the combination frame 21, the fixed combination plate 22 and the movable combination plate 23 can be assembled on the outer wall of the flow control valve body 1 to complete the sealing protection treatment of the flow control valve body 1. If the high-temperature medium is transported by the flow control valve body 1, the circulation pump 266 is controlled to work so that the coolant circulates through the inner cavity of the heat exchange tube 261. The coolant can cool the air in the inner cavity of the combination frame 21 with the help of the heat exchange tube 261, that is, the cooling protection treatment of the flow control valve body 1 is completed.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A combustion engine flow control valve external protection structure, comprising a flow control valve body (1), characterized in that: An outer protection mechanism (2) is provided on the outer wall of the flow control valve body (1), and the outer protection mechanism (2) comprises a combination frame (21), a fixed combination plate (22) is fixedly installed on the right side of the combination frame (21), and a movable combination plate (23) is movably connected to the left side of the combination frame (21), and a rubber ring (24) is fixedly connected to the inner walls of the fixed combination plate (22) and the movable combination plate (23), and the inner wall of the rubber ring (24) is movably connected to the outer wall of the flow control valve body (1), a groove (231) is provided on the right side of the movable combination plate (23), and a rubber frame (25) is fixedly connected to the left side of the combination frame (21), and the rubber frame (25) is movably inserted into the inner cavity of the groove (231).

2. The gas turbine flow control valve external protection structure according to claim 1, characterized in that: A connecting frame member (233) is fixedly mounted on the outer wall of the combination frame (21), and a protruding block (232) is fixedly mounted on the outer wall of the movable combination plate (23). The protruding block (232) is movably inserted into the inner cavity of the connecting frame member (233).

3. The external protection structure for a gas turbine flow control valve according to claim 2, characterized in that: A connecting bolt is threadedly connected to one side of the connecting frame (233) away from the combination frame (21); an anti-slip protrusion is provided on the outer surface of the connecting bolt; the threaded end of the connecting bolt extends into the inner cavity of the connecting frame (233) and is movably connected to the outer wall of the protruding block (232).

4. The gas turbine flow control valve external protection structure according to claim 1, characterized in that: A No. 1 strip tube (26) is fixedly mounted on the inner wall of the combination frame (21); a heat exchange tube (261) is fixedly connected between two No. 1 strip tubes (26) that overlap in the vertical direction; and a No. 2 strip tube (262) is fixedly connected to the sides of the two groups of No. 1 strip tubes (26) that overlap in the vertical direction and are away from each other.

5. The external protection structure for a gas turbine flow control valve according to claim 4, characterized in that: A hollow ring (263) is fixedly mounted on the back of the combination frame (21), a hollow plate (264) located below the hollow ring (263) is fixedly mounted on the back of the combination frame (21), a copper pipe (265) is fixedly connected between the hollow ring (263) and the hollow plate (264), and a circulation pump (266) is fixedly mounted on the bottom of the hollow plate (264).

6. The external protection structure for a gas turbine flow control valve according to claim 5, characterized in that: The input pipe of the circulation pump (266) is fixedly connected to the bottom of the hollow plate (264), the output pipe of the circulation pump (266) is fixedly connected to the outer wall of the second strip pipe (262) located below, and the outer wall of the second strip pipe (262) located above is fixedly connected to the top of the hollow ring (263) through a water pipe.

7. The external protection structure for a gas turbine flow control valve according to claim 6, characterized in that: A hollow vertical pipe (27) is fixedly installed on the top of the hollow plate (264), an air outlet hole (271) is opened on the outer wall of the hollow vertical pipe (27), a bent pipe is fixedly connected to the top of the hollow vertical pipe (27), and a cylindrical fan (272) is fixedly connected to the end of the bent pipe away from the hollow vertical pipe (27).

8. The external protection structure for a gas turbine flow control valve according to claim 7, characterized in that: One end of the cylindrical fan (272) away from the elbow is movably connected to a connector (273), and one end of the connector (273) away from the cylindrical fan (272) is fixedly connected to an extension hose (274).