Wear-resistant ceramic seal butterfly valve

Abstract

The utility model discloses a kind of wear-resistant ceramic sealing butterfly valves, its features include valve body structure, the valve body structure, disc plate structure and limit ring structure, the inside surface of the valve body structure is butt joint with ceramic sealing ring two, the inside surface of the valve body structure is fixedly installed with limit ring structure, the inside surface of the valve body structure is provided with disc plate structure, the surface of the disc plate structure is fixed butt joint with valve stem, the valve stem is movably sleeved with valve body structure, a kind of wear-resistant ceramic sealing butterfly valve described in the utility model, by setting valve body structure, ceramic sealing ring two and limit ring structure, when inside ceramic piece is damaged, it is convenient to repair replacement, and the setting of this structure is mainly used in necessary position with ceramic piece, it is not necessary to reduce cost greatly by internal overall ceramicization, by setting disc plate structure, it has double ceramic sealing structure, greatly improve the wear resistance and internal closure tightness of device.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a wear-resistant ceramic sealing butterfly valve. Background Technology

[0002] A butterfly valve is a type of valve that uses a disc-shaped opening and closing element to reciprocate approximately 90° to open, close, or regulate the flow of media. Butterfly valves are not only simple in structure, small in size, light in weight, economical in material consumption, small in installation dimensions, low in driving torque, and easy and quick to operate, but they also have good flow regulation function and sealing characteristics at the same time. They are one of the fastest-growing valve types in the past decade or so.

[0003] Existing butterfly valves mostly use metal or polymer materials (such as stainless steel and rubber) for their sealing surfaces. When used in media containing solid particles (such as coal slurry and mineral slurry) for a long time, they are prone to wear and erosion, leading to sealing failure. Although some valves use surface hardening treatment, their overall wear resistance is insufficient and maintenance costs are high. Although ceramic materials have high hardness, existing ceramic-sealed butterfly valves mostly use integral ceramic valve plates, which have problems such as high brittleness, poor impact resistance, and high processing costs. Therefore, a wear-resistant ceramic-sealed butterfly valve is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a wear-resistant ceramic sealing butterfly valve to solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant ceramic sealing butterfly valve, characterized by a valve body structure, a disc structure, and a limiting ring structure. A ceramic sealing ring is mated to the internal surface of the valve body structure. A limiting ring structure is fixedly installed on the internal surface of the valve body structure. A disc structure is provided on the internal surface of the valve body structure. A valve stem is fixedly mated to the surface of the disc structure. The valve stem is movably sleeved with the valve body structure. The valve body structure includes a valve seat, an open mating groove, a limiting ring, a fixing screw hole, a mounting hole, a rotating mating hole, an actuator mounting plate, and a bearing hole.

[0006] Preferably, the valve seat has an open mating groove fixedly formed on its inner surface, a limit ring fixedly formed on the surface of the open mating groove, a fixed screw hole fixedly formed on the inner surface of the valve seat, an installation hole fixedly formed on the surface of the valve seat, a rotating mating hole fixedly formed on the inner surface of the valve seat, an actuator mounting plate fixedly connected to the surface of the valve seat, and a bearing hole formed on the surface of the actuator mounting plate.

[0007] Preferably, the disc structure includes a circular sealing plate, an embedded groove, a ceramic sealing ring, and an insertion hole. The circular sealing plate has an embedded groove fixedly formed on its arc-shaped surface, and the ceramic sealing ring is fitted onto the surface of the embedded groove. The circular sealing plate has an insertion hole fixedly formed on its surface.

[0008] Preferably, the limiting ring structure includes a fixing ring, a fixing hole, and a fixing screw. The fixing ring has a fixing hole fixedly formed on its surface, and the fixing hole is screwed to its surface.

[0009] Preferably, the second ceramic sealing ring is mated to the surface of the open mating groove, one side surface of the second ceramic sealing ring is attached to the surface of the limiting retaining ring, the fixing screw is screwed to connect the fixing hole and the fixing screw hole, the fixing ring and the limiting retaining ring fix the second ceramic sealing ring in the middle position, the valve stem moves through the bearing hole, the valve stem is fixed to the through hole of the disc structure, and one end surface of the valve stem moves to the surface of the rotating mating hole. The beneficial effects of this utility model are as follows: By setting the valve body structure, ceramic sealing ring II, and limiting ring structure, it facilitates maintenance and replacement when the internal ceramic parts are damaged. Furthermore, this structure mainly uses the ceramic parts in the necessary positions, eliminating the need for overall internal ceramicization, thus greatly reducing costs. By setting a disc structure to give it a double ceramic sealing structure, the wear resistance and internal sealing performance of the device are greatly improved. At the same time, the ceramic sealing ring one and ceramic sealing ring two of the disc structure are similar to each other, which facilitates maintenance and are used at the closure of the connecting groove. Attached Figure Description

[0010] Figure 1 This is an overall schematic diagram of the present invention.

[0011] Figure 2 This is a schematic diagram of the valve body structure of this utility model.

[0012] Figure 3 This is a schematic diagram of the transfer frame structure of this utility model.

[0013] Figure 4 This is an exploded view of the transfer frame structure of this utility model.

[0014] Figure 5 This is a schematic diagram of the limiting ring structure of this utility model.

[0015] Figure 6 This is a schematic diagram of the ceramic sealing ring of this utility model.

[0016] Legend: 1. Valve body structure; 101. Valve seat; 102. Open mating groove; 103. Limiting ring; 104. Fixing screw hole; 105. Mounting hole; 106. Rotating mating hole; 107. Actuator mounting plate; 108. Bearing hole; 2. Disc structure; 201. Circular sealing plate; 202. Embedded groove; 203. Ceramic sealing ring one; 204. Through hole; 3. Limiting ring structure; 301. Fixing ring; 302. Fixing hole; 303. Fixing screw; 4. Ceramic sealing ring two; 5. Valve stem. Detailed Implementation

[0017] The wear-resistant ceramic sealing butterfly valve of this utility model will be further described below with reference to the accompanying drawings.

[0018] See appendix Figure 1-6 As shown, in order to achieve the above objectives, this utility model provides the following technical solution in this embodiment: a wear-resistant ceramic sealing butterfly valve, characterized by a valve body structure 1, a disc structure 2 and a limiting ring structure 3, wherein a ceramic sealing ring 4 is mated to the inner surface of the valve body structure 1, a limiting ring structure 3 is fixedly installed on the inner surface of the valve body structure 1, a disc structure 2 is provided on the inner surface of the valve body structure 1, a valve stem 5 is fixedly mated to the surface of the disc structure 2, the valve stem 5 is movably sleeved with the valve body structure 1, and the valve body structure 1 includes a valve seat 101, an open mating groove 102, a limiting retaining ring 103, a fixing screw hole 104, a mounting hole 105, a rotating mating hole 106, an actuator mounting plate 107 and a bearing hole 108; Specifically, the valve opening and closing operation of this device retains the existing process. The main improvement is to the internal sealing structure. The device rotates the valve stem 5 using a manual or pneumatic actuator. The valve stem 5 is movably connected to the surface of the valve body structure 1 and is fixedly connected to the disc structure 2. The rotation of the valve stem 5 causes the disc structure 2 to open and close 90° inside the valve body structure 1. The ceramic sealing ring 4 is fixed and restricted inside the valve body structure 1 by the limiting ring structure 3. When the disc structure 2 is closed, the arc-shaped surface is tightly fitted with the ceramic sealing ring 4 to ensure sealing.

[0019] See appendix Figure 1-6 As shown, an open docking groove 102 is fixedly formed on the inner surface of the valve seat 101, a limit retaining ring 103 is fixedly formed on the surface of the open docking groove 102, a fixing screw hole 104 is fixedly formed on the inner surface of the valve seat 101, an installation hole 105 is fixedly formed on the surface of the valve seat 101, a rotating docking hole 106 is fixedly formed on the inner surface of the valve seat 101, an actuator mounting plate 107 is fixedly connected to the surface of the valve seat 101, and a bearing hole 108 is formed on the surface of the actuator mounting plate 107. Specifically, the installation process for ceramic sealing ring 2 4 is as follows: First, it is aligned with the open mating groove 102. One side of ceramic sealing ring 2 4 will adhere to the surface of the limiting ring 103 to prevent movement. Then, using the fixing ring 301 of the limiting ring structure 3, the fixing ring 301 is aligned with the inside of the valve seat 101. Then, the fixing screw 303 is used to screw-connect the fixing hole 302 and the fixing screw hole. After fixing, the limiting ring structure 3 will adhere to the other side of ceramic sealing ring 2 4, thus forming a clamping and fixing state, preventing ceramic sealing ring 2 4 from moving. At the same time, it reduces the use of ceramic structures over a large area, using them only in the required locations, reducing costs and facilitating maintenance and replacement.

[0020] See appendix Figure 1-6 As shown, the disc structure 2 includes a circular sealing plate 201, an embedded groove 202, a ceramic sealing ring 203, and an insertion hole 204. The circular sealing plate 201 has an embedded groove 202 fixedly opened on its arc-shaped surface. The ceramic sealing ring 203 is fitted onto the surface of the embedded groove 202. The circular sealing plate 201 has an insertion hole 204 fixedly provided on its surface. Specifically, the disc structure 2 has an embedded groove 202 on its arc-shaped surface. The embedded groove 202 is connected to the embedded ceramic sealing ring 203. When the disc structure 2 is closed, the ceramic sealing ring 203 and the ceramic sealing ring 4 are tightly fitted to ensure the internal sealing performance. The through hole 204 is used for the valve stem 5 to be inserted and fixed.

[0021] See appendix Figure 1-6 As shown, the limiting ring structure 3 includes a fixing ring 301, a fixing hole 302, and a fixing screw 303. The fixing ring 301 has a fixing hole 302 fixedly opened on its surface, and the fixing hole 302 is spirally connected to the surface of the fixing screw 303. At the same time, the ceramic structure is used in necessary positions to make it more durable.

[0022] See appendix Figure 1-6 As shown, the ceramic sealing ring 4 is mated to the surface of the open mating groove 102, and one side surface of the ceramic sealing ring 4 is attached to the surface of the limiting stop ring 103. The fixing screw 303 is screwed to the fixing hole 302 and the fixing screw hole 104. The fixing ring 301 and the limiting stop ring 103 fix the ceramic sealing ring 4 in the middle position. The valve rod 5 moves through the bearing hole 108. The valve rod 5 is inserted and fixed to the through hole 204 of the disc structure 2. One end surface of the valve rod 5 is movably mated to the surface of the rotating mating hole 106.

[0023] See appendix Figure 1-6As shown, this utility model improves upon the existing butterfly valve structure. While the valve opening and closing process remains the same, the main improvement lies in the internal sealing structure. The device uses a manual or pneumatic actuator to rotate the valve stem 5. The valve stem 5 is movably connected to the surface of the valve body structure 1 and fixedly connected to the disc structure 2. The rotation of the valve stem 5 causes the disc structure 2 to open and close 90° inside the valve body structure 1. The ceramic sealing ring 4 is fixedly confined inside the valve body structure 1 by the limiting ring structure 3. When the disc structure 2 is closed, its arc-shaped surface tightly fits against the ceramic sealing ring 4 to ensure a tight seal. The installation process for the ceramic sealing ring 4 involves first connecting it to the open docking groove 102. One side of the ceramic sealing ring 4 will then adhere to the limiting stop ring. To prevent the surface of valve seat 103 from moving, the fixing ring 301 of the limiting ring structure 3 is used to connect the fixing ring 301 to the inside of the valve seat 101. Then, the fixing screw 303 is used to screw the fixing hole 302 and the fixing screw hole. After fixing, the limiting ring structure 3 will fit against the other side of the ceramic sealing ring 4, thus forming a clamping and fixing state, preventing the ceramic sealing ring 4 from moving. At the same time, it reduces the use of ceramic structures in large areas, only using them in the required positions, reducing costs and facilitating maintenance and replacement. The disc structure 2 is provided with an embedding groove 202 on its arc surface. The embedding groove 202 is connected to the embedded ceramic sealing ring 203. When the disc structure 2 is closed, the ceramic sealing ring 203 and the ceramic sealing ring 4 are tightly fitted to fully ensure the internal sealing. The insertion hole 204 is used for the valve stem 5 to be inserted and fixed.

[0024] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A wear-resistant ceramic-sealed butterfly valve, characterized by a valve body structure (1), a disc structure (2) and a limiting ring structure (3), wherein a ceramic sealing ring (4) is mated to the inner surface of the valve body structure (1), the limiting ring structure (3) is fixedly installed on the inner surface of the valve body structure (1), the disc structure (2) is provided on the inner surface of the valve body structure (1), and a valve stem (5) is fixedly mated to the surface of the disc structure (2), wherein the valve stem (5) is movably sleeved with the valve body structure (1), and the valve body structure (1) includes a valve seat (101), an open mating groove (102), a limiting retaining ring (103), a fixing screw hole (104), a mounting hole (105), a rotating mating hole (106), an actuator mounting plate (107), and a bearing hole (108).

2. The wear-resistant ceramic-sealed butterfly valve according to claim 1, characterized in that: An open docking groove (102) is fixedly provided on the inner surface of the valve seat (101). A limit retaining ring (103) is fixedly provided on the surface of the open docking groove (102). A fixing screw hole (104) is fixedly provided on the inner surface of the valve seat (101). An installation hole (105) is fixedly provided on the surface of the valve seat (101). A rotating docking hole (106) is fixedly provided on the inner surface of the valve seat (101). An actuator mounting plate (107) is fixedly connected to the surface of the valve seat (101). A bearing hole (108) is provided on the surface of the actuator mounting plate (107).

3. The wear-resistant ceramic-sealed butterfly valve according to claim 1, characterized in that: The disc structure (2) includes a circular sealing plate (201), an embedded groove (202), a ceramic sealing ring (203), and an insertion hole (204). The circular sealing plate (201) has an embedded groove (202) fixedly opened on its arc-shaped surface. The embedded groove (202) is fitted with a ceramic sealing ring (203) on its surface. The circular sealing plate (201) has an insertion hole (204) fixedly provided on its surface.

4. The wear-resistant ceramic-sealed butterfly valve according to claim 3, characterized in that: The limiting ring structure (3) includes a fixing ring (301), a fixing hole (302) and a fixing screw (303). The fixing ring (301) has a fixing hole (302) fixedly opened on its surface, and the fixing hole (302) is spirally connected to the surface of the fixing screw (303).

5. The wear-resistant ceramic-sealed butterfly valve according to claim 4, characterized in that: The ceramic sealing ring 2 (4) is mated to the surface of the open mating groove (102). One side surface of the ceramic sealing ring 2 (4) is attached to the surface of the limiting stop ring (103). The fixing screw (303) is screwed to connect the fixing hole (302) and the fixing screw hole (104). The fixing ring (301) and the limiting stop ring (103) fix the ceramic sealing ring 2 (4) in the middle position. The valve rod (5) moves through the bearing hole (108). The valve rod (5) is fixed to the through hole (204) of the disc structure (2). One end surface of the valve rod (5) moves to the surface of the rotating mating hole (106).

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