Soft sealing slag flushing water gate valve

Abstract

The utility model discloses a soft sealing slag flushing water gate valve which comprises a valve body, a valve plate and an oil cylinder, the valve plate is arranged in the valve body in a sliding mode, the oil cylinder is installed at the top end of the valve body, and an oil cylinder telescopic rod in the oil cylinder penetrates through a support at the top end of the valve body to be connected with the top end of the valve plate. A bottom sealing ring is mounted between the bottom of the valve plate and the bottom of the valve body; side sealing rings are installed between the two sides of the valve plate and the corresponding inner side walls of the valve body respectively. The oil cylinder drives the valve plate to move, hydraulic transmission is large in thrust and tension and stable in movement, opening and closing sensitivity is guaranteed, the telescopic rod of the oil cylinder is not prone to corrosion and high in smoothness, clamping stagnation is avoided when the valve plate ascends and descends, the detachable bottom sealing ring and the detachable side sealing ring are adopted for sealing in the sealing process, assembling is convenient, and the sealing effect is good. And the damaged sealing ring is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, specifically to a soft-seal slag flushing water gate valve. Background Technology

[0002] Existing slag flushing gate valves typically use manual or electric drive to rotate a screw and move the valve plate. However, the following problems exist: 1) Existing slag flushing gate valves use screw lifting, which has high machining costs. In addition, the gate valve operates in a harsh environment with frequent movements, making the screw prone to corrosion and accumulating dirt on its surface, causing difficulty in screw movement and affecting the sensitivity of the gate valve; 2) Both electric and manual drives have relatively low transmission efficiency; 3) The sealing structure of existing gate valves ages quickly, is easily damaged, and is inconvenient to replace. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a soft-seal slag flushing gate valve, which can improve the sensitivity of valve plate opening and closing, avoid jamming, and at the same time ensure the sealing between valve body and valve plate.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] A soft-seal slag flushing gate valve includes a valve body, a valve plate, and a hydraulic cylinder. The valve plate is slidably disposed within the valve body. The hydraulic cylinder is installed at the top of the valve body, and the hydraulic cylinder extension rod inside the cylinder passes through the top bracket of the valve body and connects to the top of the valve plate. A bottom sealing ring is installed between the bottom of the valve plate and the bottom of the valve body. Side sealing rings are respectively installed between the two sides of the valve plate and the corresponding inner sidewalls of the valve body.

[0006] The aforementioned soft-seal slag flushing gate valve includes a side sealing ring and a bottom sealing ring comprising an annular portion and a plate-shaped portion, wherein one edge of the plate-shaped portion is tangent to the outer edge of the annular portion; the plate-shaped portion is connected to the valve plate by a bolt assembly, and a fastening plate is further provided between the end face of the plate-shaped portion away from the valve plate surface and the bolt assembly.

[0007] The aforementioned soft-seal slag flushing gate valve has guide tubes on both sides of the valve body that are slidably connected to the valve plate and guide the valve plate.

[0008] The aforementioned soft-seal slag flushing gate valve includes a valve plate comprising a front plate, a rear plate, an intermediate stiffener, and a side connecting plate. The smooth surfaces of the front plate and the rear plate are respectively arranged facing outwards. The opposite end faces of the front plate and the rear plate are connected by the intermediate stiffener. The two ends of the front plate and the rear plate are respectively connected and sealed by the side connecting plate. The bottom ends of the front plate and the rear plate are connected and sealed by a horizontal bottom plate.

[0009] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0010] This utility model provides a soft-seal slag flushing gate valve. The valve plate is moved by a hydraulic cylinder. The hydraulic transmission has large thrust and pull, and the movement is smooth, ensuring the sensitivity of opening and closing. At the same time, the hydraulic cylinder extension rod is not easy to rust and has a high degree of smoothness, avoiding the jamming phenomenon when the valve plate is raised or lowered. Moreover, the sealing process uses detachable bottom sealing rings and side sealing rings for sealing, which is convenient for assembly and easy to replace damaged sealing rings. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the specific structure of the present utility model;

[0012] Figure 2 This is a schematic diagram of the specific structure of the valve plate described in this utility model;

[0013] Figure 3 This is a schematic diagram showing the specific structure of the assembly of the bottom sealing ring and the valve plate / valve body according to this utility model;

[0014] Figure 4 This is a schematic diagram showing the specific structure of the side sealing ring and valve plate / valve body assembly described in this utility model.

[0015] The components are: 1. Valve body, 2. Valve plate, 3. Hydraulic cylinder, 4. Hydraulic cylinder telescopic rod, 5. Side sealing ring, 6. Bottom sealing ring, 7. Bolt assembly, 8. Guide tube, 9. Front plate, 10. Rear plate, 11. Intermediate stiffener plate, 12. Side connecting plate. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] A soft-seal slag flushing gate valve, such as Figures 1 to 4 As shown, the valve includes a valve body 1, a valve plate 2, and a cylinder 3. The valve plate 2 is slidably disposed inside the valve body 1. The cylinder 3 is installed at the top of the valve body 1, and the cylinder extension rod 4 inside the cylinder 3 passes through the top bracket of the valve body 1 and is connected to the top of the valve plate 2. A bottom sealing ring 6 is installed at the bottom of the valve plate 2 by bolt assembly 7, and the bottom sealing ring 6 is disposed between the bottom of the valve plate 2 and the bottom of the valve body 1. Side sealing rings 5 ​​are installed between the two sides of the valve plate 2 and the corresponding inner sidewalls of the valve body 1, and the two sides of the valve plate 2 are respectively connected to the side sealing rings 5 ​​by bolt assembly 7.

[0018] Guide tubes 8 are respectively provided on both sides of the valve body 1, which are slidably connected to the valve plate 2, such as Figure 4 As shown, the guide tube 8 is made of stainless steel and can guide the valve plate 2 to move up and down, preventing the valve plate from deviating when it moves.

[0019] The side sealing ring 5 and the bottom sealing ring 6 are made of materials with high temperature resistance, corrosion resistance and aging resistance to avoid premature aging and extend the service life of the sealing rings.

[0020] The side sealing ring 5 and the bottom sealing ring 6 include an annular portion and a plate-shaped portion. The plate-shaped portion is connected to the annular portion, and one side edge of the plate-shaped portion is tangent to the outer edge of the annular portion.

[0021] The plate-shaped part is connected to the valve plate 2 by bolt assembly 7, and a fastening plate is also provided between the end face of the plate-shaped part away from the surface of the valve plate 2 and the bolt assembly.

[0022] The bottom sealing ring 6 and the side sealing ring 5 are installed on the valve plate 2 by bolt assembly 7, which is flexible to assemble and easy to disassemble. At the same time, due to the special cross-section of the bottom sealing ring 6 and the side sealing ring 5, the valve plate 2 and the valve body 1 are tightly fitted to ensure sealing.

[0023] Valve plate 2 includes a front plate 9, a rear plate 10, a middle stiffening plate 11, and a side connecting plate 12, such as Figure 4 As shown, the smooth surfaces of the front plate 9 and the rear plate 10 are respectively arranged facing outwards, which can prevent residue from accumulating on the valve plate 2.

[0024] The opposite end faces of the front plate 9 and the rear plate 10 are connected by an intermediate stiffener 11. The two ends of the front plate 9 and the rear plate 10 are connected and sealed by side connecting plates 12 respectively. The bottom ends of the front plate 9 and the rear plate 10 are connected and sealed by a horizontal bottom plate.

[0025] The side connecting plate 12 has an L-shaped structure, the guide tube 8 is slidably connected to the side connecting plate 12, and the guide tube 12 is located in the bending area of ​​the side connecting plate 12.

[0026] The bottom frame of valve body 1 is formed by welding channel steel. The flat part of the channel steel is set upward and the groove part is set downward, which makes the bottom of valve body 1 easy to clean and not easy to accumulate slag.

[0027] This utility model provides a soft-seal slag flushing gate valve. The valve plate is moved by a hydraulic cylinder. The hydraulic transmission has large thrust and pull, and the movement is smooth, ensuring the sensitivity of opening and closing. At the same time, the hydraulic cylinder extension rod is not easy to rust and has a high degree of smoothness, avoiding the jamming phenomenon when the valve plate is raised or lowered. Moreover, the sealing process uses detachable bottom sealing rings and side sealing rings for sealing, which is convenient for assembly and easy to replace damaged sealing rings.

Claims

1. A soft-seal slag flushing gate valve, characterized in that: The valve includes a valve body (1), a valve plate (2), and a cylinder (3). The valve plate (2) is slidably disposed inside the valve body (1). The cylinder (3) is installed at the top of the valve body (1), and the cylinder extension rod (4) inside the cylinder (3) passes through the top bracket of the valve body (1) and connects to the top of the valve plate (2). A bottom sealing ring (6) is installed between the bottom of the valve plate (2) and the bottom of the valve body (1). Side sealing rings (5) are installed between the two sides of the valve plate (2) and the corresponding inner sidewalls of the valve body (1). The side sealing ring (5) and the bottom sealing ring (6) include an annular part and a plate-shaped part. One edge of the plate-shaped part is tangent to the outer edge of the annular part. The plate-shaped part is connected to the valve plate (2) by a bolt assembly (7). A fastening plate is also provided between the end face of the plate-shaped part away from the surface of the valve plate (2) and the bolt assembly (7).

2. The soft-seal slag flushing gate valve according to claim 1, characterized in that: The valve body (1) is provided with guide tubes (8) on both sides, which are slidably connected to the valve plate (2) and guide the valve plate (2).

3. A soft-seal slag flushing gate valve according to claim 1, characterized in that: The valve plate (2) includes a front plate (9), a rear plate (10), a middle stiffener (11), and a side connecting plate (12). The smooth surfaces of the front plate (9) and the rear plate (10) are respectively arranged facing outwards. The opposite end faces of the front plate (9) and the rear plate (10) are connected by the middle stiffener (11). The two ends of the front plate (9) and the rear plate (10) are respectively connected and sealed by the side connecting plate (12). The bottom ends of the front plate (9) and the rear plate (10) are connected and sealed by a horizontal bottom plate.

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