Water cooled rectangular spool valve

Abstract

This utility model discloses a water-cooled rectangular slide gate valve, including a valve body, a base on the top of the valve body, a valve plate inside the valve body, a flange sealing ring on the outside of the flange, a sealing surface on the inside of the flange, and a flange water channel at the inner ring of the flange. This application effectively solves the problem of sealing failure caused by the dual heat impact on the sealing ring due to heat transfer from the valve body and the valve plate. The water channel at the flange can effectively reduce the temperature of the sealing surface and the flange sealing ring, and block the heat transferred to the sealing ring by the airflow through the valve plate. The water channel inside the sealing ring on the outer ring of the valve plate can effectively block the heat transfer path of the sealing surface and minimize the heat transfer to the sealing ring. In order to ensure the maximum cooling effect of the hot and cold channel, the water channel adopts a bottom-inlet and top-outlet water inlet and outlet method, and the water in the water channel is always kept full.

Description

Technical Field

[0001] This utility model relates to the field of rectangular valve technology, and in particular to a water-cooled rectangular slide valve. Background Technology

[0002] In the field of engineering technology, vacuum rectangular valves are key control components, and their sealing performance directly affects the stable operation and efficiency of the entire system. However, the sealing ring method widely used in traditional designs faces severe challenges in high-temperature environments, especially when the ambient temperature or working medium temperature exceeds 120°C. The temperature resistance limit of the sealing ring material restricts its service life and sealing effect under high-temperature conditions. Once its tolerance range is exceeded, the sealing performance will drop sharply or even fail completely. This not only affects the normal function of the valve but may also cause incalculable losses to the entire process.

[0003] A thorough analysis of the mechanism by which high temperatures cause seal failure reveals that the heat transfer path is multifaceted and complex. First, the heat generated inside the cavity radiates directly to the valve body and valve plate, gradually accumulating in the sealing area through heat conduction, thus increasing the workload on the sealing ring. Second, if the heated gas flowing through the system contains high levels of heat, this heat will be further transferred to the sealing ring through convection and conduction as it passes through the valve plate, creating a "double heating" effect that significantly increases the risk of the sealing ring failing due to overheating.

[0004] To address the aforementioned issues, especially in applications involving large rectangular valves, traditional heat dissipation methods such as natural cooling or localized water cooling often fall short of meeting the demands for efficient heat dissipation. Particularly under high-temperature, high-load operating conditions, achieving simultaneous and effective cooling of both the valve body and valve plate significantly increases both technical difficulty and cost. The limitation of existing water cooling systems lies in their design, which often focuses on cooling localized areas, failing to comprehensively cover and effectively distribute the overall heat load of the valve. This leads to frequent localized overheating, consequently affecting sealing performance and valve lifespan. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model provides a water-cooled rectangular slide valve, which solves the problem of insufficient heat dissipation of rectangular valves in high-temperature environments.

[0006] This utility model is achieved using the following technical solution: a water-cooled rectangular slide gate valve, characterized in that it includes a valve body and a valve plate disposed inside the valve body, the valve plate being provided with valve plate water channels for cooling, and a flange being disposed at the bottom of the valve body, the flange being provided with flange water channels for cooling. This structure, by providing cooling water channels inside the valve plate and flange, achieves effective water cooling of key components, improving the valve's durability and operational stability under high-temperature or high-load conditions.

[0007] Furthermore, the valve plate water channel is located inside the valve plate, arranged in a ring along the edge of the valve plate, and connected to the valve plate inlet pipe and valve plate outlet pipe located on the top of the valve plate. The ring arrangement of the valve plate water channel ensures that the cooling water can flow evenly across the edge of the valve plate, avoiding local overheating and improving the cooling efficiency and service life of the valve plate.

[0008] Furthermore, the valve plate inlet pipe is connected to the inlet port located on the top base of the valve body via an inlet hose, and the valve plate outlet pipe is connected to the outlet port of the base via an outlet hose. This hose connection method not only simplifies the structural installation but also ensures the continuity and sealing of the cooling water passage during valve plate opening and closing.

[0009] Furthermore, a baffle plate is installed inside the flange water channel to separate the flange inlet and outlet, forming a closed, one-way cooling path. The baffle plate effectively separates the inlet and outlet, preventing short-circuiting of the cooling water flow and ensuring that the cooling water circulates along a predetermined path, thereby improving the cooling effect.

[0010] Furthermore, the flange inlet is located above the flange outlet to create a bottom-in, top-out water cooling flow. This bottom-in, top-out cooling water flow utilizes natural convection, which helps the cooling water carry away heat and enhances heat dissipation efficiency.

[0011] Furthermore, a support frame is provided between the valve plate and the valve body to support and guide the opening and closing action of the valve plate. The support frame not only ensures the stability and accuracy of the valve plate's opening and closing action, but also prevents the cooling water channel from deforming under stress, ensuring the normal operation of the cooling system.

[0012] Furthermore, the inlet and outlet hoses are flexible, extending and retracting synchronously with the up-and-down movement of the valve plate, maintaining a continuous cooling water passage during valve opening and closing. The flexible design of the hoses adapts to the movement of the valve plate, ensuring unobstructed water flow, preventing cooling interruptions, and improving the reliability and safety of valve operation.

[0013] The beneficial effects of this utility model are as follows: This application effectively solves the failure problem caused by the dual heat impact on the sealing ring due to heat transfer from the valve body and the valve plate. A water channel is provided at the inner ring of the flange, which can effectively reduce the temperature of the sealing surface and at the same time reduce the temperature of the flange sealing ring. In order to block the heat transferred to the sealing ring by the airflow through the valve plate, this utility model provides a water channel on the inner side of the sealing ring on the outer ring of the valve plate, which can effectively block the heat transfer path of the sealing surface and minimize the heat transfer to the sealing ring. In order to ensure the maximum heat transfer effect of the hot and cold channel, the water channel adopts the bottom inlet and top outlet water inlet and outlet method, which can ensure that the water in the water channel is always full. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a water-cooled rectangular slide gate valve.

[0016] Figure 2 This is a schematic diagram of the water channel structure of a water-cooled rectangular slide valve.

[0017] Figure 3 This is a side sectional view of a water-cooled rectangular slide valve;

[0018] Figure 4 This is an enlarged view of section I of a water-cooled rectangular slide valve.

[0019] Figure 5 This is a schematic diagram of the water channel structure of a water-cooled rectangular slide valve.

[0020] In the diagram: 1-Valve body, 101-Flange, 102-Base, 103-Valve port, 2-Valve plate, 201-Base inlet, 202-Base outlet, 203-Inlet hose, 204-Outlet hose, 205-Valve plate inlet pipe, 206-Valve plate outlet pipe, 3-Valve plate sealing ring, 4-Valve plate water channel, 401-Valve plate water channel seal, 5-Flange sealing ring, 6-Flange water channel, 601-Flange outlet, 602-Flange inlet, 603-Water channel partition, 604-Flange water channel seal, 7-Support frame. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Example

[0023] like Figures 1 to 5 As shown in the figure, this embodiment of the present invention provides a water-cooled rectangular slide gate valve, including a valve body 1, a base 102 disposed on the top of the valve body 1, a valve plate 2 disposed inside the valve body 1, a valve plate sealing ring 3 disposed on the edge of the valve plate 2, a valve plate water channel 4 disposed inside the valve plate 2, a flange 101 disposed at the bottom of the valve body 1, a flange sealing ring 5 disposed on the outside of the flange 101, and a flange water channel 6 disposed on the inner ring of the flange 101. A support frame 7 is also provided between the valve plate 2 and the valve body 1.

[0024] The valve plate water channel 4 is located inside the valve plate 2 and is distributed in a ring along the edge of the valve plate to cool the valve plate sealing ring 3. The valve plate inlet pipe 205 and the valve plate outlet pipe 206 are located on the top of the valve plate 2 and are connected to the valve plate water channel 4 respectively. The valve plate inlet pipe 205 is connected to the base inlet port 201 through the inlet hose 203, and the valve plate outlet pipe 206 is connected to the base outlet port 202 through the outlet hose 204, forming a complete inlet and outlet channel for cooling water.

[0025] The flange water channel 6 is located inside the flange 101, and a water channel baffle 603 is installed inside to physically separate the inlet and outlet water paths. One side of the water channel has a flange inlet 601, and the other side has a flange outlet 602, forming a closed-loop circulating water cooling system. The flange inlet 601 is located above the flange outlet 602, allowing the water cooling system to operate in a bottom-in, top-out manner to ensure the water channel is fully filled and improve heat exchange efficiency.

[0026] Specifically, when the valve is closed, the valve plate 2 descends and is pressed against the sealing surface of the flange 101 by its sealing ring 3, thus forming an airtight seal. However, under high-temperature conditions, heat radiation and heat conduction can easily cause the flange sealing ring 5 to fail. To solve this problem, a flange water channel 6 is provided on the flange sealing surface and cooled by cooling water, which can effectively reduce its temperature. At the same time, the valve plate water channel 4 inside the valve plate 2 is also arranged around the sealing ring 3, forming a heat barrier through the annular water channel, reducing the possibility of heat being transferred from the valve plate to the sealing ring.

[0027] Cooling water enters through the base inlet 201, flows through the hose 203 into the valve plate water channel 4, circles around the water channel, and then exits through the hose 204 from the base outlet 202, completing the cooling of the valve plate; cooling water is introduced into the flange water channel 6 through the flange inlet 601, flows around the water channel, and then exits from the flange outlet 602, completing the cooling process of the flange sealing surface.

[0028] During valve opening, valve plate 2 rises, and the hose automatically bends and retracts; when the valve closes, the hose unfolds accordingly, maintaining a consistent bending path and not affecting opening / closing operations or cooling continuity. This device features a compact structure, adaptability to high-temperature conditions, reliable sealing, and excellent thermal control performance and operational stability. Example

[0029] like Figures 1 to 5 As shown, this embodiment of the present invention provides a water-cooled rectangular slide gate valve, including a valve body 1, a base 102 disposed on the top of the valve body 1, a valve plate 2 disposed inside the valve body 1, a valve plate sealing ring 3 disposed on the edge of the valve plate 2, a valve plate water channel 4 disposed inside the valve plate 2, a flange 101 disposed at the bottom of the valve body 1, a flange sealing ring 5 disposed on the outside of the flange 101, a flange water channel 6 disposed on the inner ring of the flange 101, and a support frame 7 disposed between the valve plate 2 and the valve body 1.

[0030] The valve plate inlet pipe 205 and the valve plate outlet pipe 206 are respectively installed on the top of the valve plate 2. The valve plate inlet pipe 205 is connected to the base inlet port 201 through the inlet hose 203, and the valve plate outlet pipe 206 is connected to the base outlet port 202 through the outlet hose 204, forming a cooling water channel inside the valve plate.

[0031] The flange water channel 6 is located inside the flange 101 and is arranged around the flange sealing ring 5. A water channel baffle 603 is provided inside the flange water channel 6 to separate the inlet and outlet water channels. A flange inlet 601 is located on one side of the water channel baffle 603, and a flange outlet 602 is located on the other side. The flange inlet 601 is located above the flange outlet 602, forming a bottom-inlet, top-outlet water cooling structure, effectively ensuring that the water channel is fully filled and improving cooling efficiency.

[0032] The valve plate water channel 4 is located inside the valve plate 2 and is arranged in a ring along the inner side of the sealing ring 3 to form a closed cooling circuit. The cooling water inside the valve plate is introduced through the base inlet 201, enters the valve plate inlet pipe 205 through the hose 203, circles the valve plate once, and is discharged from the outlet pipe 206 and hose 204 through the base outlet 202.

[0033] When the valve is closed, the valve plate 2 presses against the sealing surface of the flange 101 through its sealing ring 3 to achieve a sealing function. Under high-temperature conditions, both the valve plate and the flange may absorb heat and conduct it to the sealing ring, easily causing aging or even failure of the sealing ring. By setting cooling water channels inside the valve plate 2 and inside the flange 101 respectively, a double water-cooling barrier is formed, which can effectively isolate heat transfer, reduce the temperature of the environment where the sealing ring is located, and improve the sealing reliability and service life of the valve under high-temperature conditions.

[0034] In this embodiment, the soft water pipes 203 and 204 are made of highly flexible, high-temperature, and pressure-resistant material, which allows them to bend and retract naturally with the up-and-down movement of the valve plate, ensuring that the water circuit connection is not broken or interfered with when the valve is opened and closed, and maintaining uninterrupted cooling circulation. The bending path of the soft water pipes is reasonably designed, and the movement process is limited by the position of the support frame and drive structure, ensuring smooth operation.

[0035] Specifically, to enhance the water cooling effect, the water channel baffle 603 inside the flange water channel 6 is encapsulated with a metal plate and is pressed and fixed to the inner wall by a sealing ring, ensuring that the water flow forms a circular path in the inlet and outlet water channels. The valve plate water channel 4 is close to the edge of the valve plate 2 and forms a loop on the inner side near the sealing ring 3. Its flow channel cross-section design combines the valve plate thickness and water pressure control parameters to form a highly efficient heat dissipation ring.

[0036] During the cooling water circulation process, the flange water channel introduces cold water through the flange inlet 601, and after being guided by the water channel baffle to circulate, it flows out from the flange outlet 602, thereby achieving cooling protection for the flange sealing surface and sealing ring 5; the valve plate water channel completes closed-loop cooling through the base water supply system, thereby achieving heat insulation for the valve plate structure and its sealing ring 3.

[0037] This embodiment comprehensively enhances the sealing and protection capabilities of the water-cooled gate valve in high-temperature operating environments by integrating a dual-channel water-cooling structure, flexible hose water circuit, closed internal water channel, and structural positioning support components.

[0038] The above embodiments describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A water-cooled rectangular slide gate valve, characterized in that, It includes a valve body (1) and a valve plate (2) disposed inside the valve body (1). The valve plate (2) is provided with a valve plate water channel (4) for cooling it. A flange (101) is provided at the bottom of the valve body (1). The flange (101) is provided with a flange water channel (6) for cooling it.

2. A water cooled rectangular spool valve according to claim 1, wherein, The valve plate water channel (4) is located inside the valve plate (2), arranged in a ring along the edge of the valve plate (2), and is connected to the valve plate inlet pipe (205) and valve plate outlet pipe (206) located on the top of the valve plate (2).

3. A water cooled rectangular spool valve according to claim 2, wherein, The valve plate inlet pipe (205) is connected to the inlet (201) of the base (102) on the top of the valve body (1) via an inlet hose (203), and the valve plate outlet pipe (206) is connected to the outlet (202) of the base (102) via an outlet hose (204).

4. A water cooled rectangular spool valve according to claim 1 wherein, The flange water channel (6) is provided with a water channel baffle (603) to separate the flange inlet (601) and the flange outlet (602) on the flange (101) to form a closed one-way cooling passage.

5. A water cooled rectangular spool valve according to claim 4, wherein, The flange inlet (601) is located above the flange outlet (602) to form a bottom-in, top-out water cooling flow direction.

6. A water cooled rectangular spool valve according to claim 1 wherein, A support frame (7) is provided between the valve plate (2) and the valve body (1) to support and guide the opening and closing action of the valve plate (2).

7. A water cooled rectangular spool valve according to claim 3 wherein, The inlet hose (203) and outlet hose (204) are flexible structures that can extend and retract synchronously with the up and down movement of the valve plate (2), maintaining the continuity of the cooling water channel during the opening and closing of the valve.

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