A clog-free plug valve

Abstract

The utility model provides a kind of unloading ash plug-in valve, including valve body, screw rod, groove is installed in the upper valve body and has valve plate, the upper part of valve plate is fixedly connected with nut seat, the upper part of valve body is installed with rolling bearing seat, the lower part of screw rod is cooperated with nut seat, the upper part of screw rod is fixed in rolling bearing seat, valve seat is welded in the valve body and cooperated with valve plate, and sealing assembly is arranged in the position of valve body middle and valve plate cooperation. By setting sealing assembly, reduce the valve leakage rate, improve the service life of valve.

Description

Technical Field

[0001] This utility model relates to the field of slide gate valve technology. Background Technology

[0002] A slide gate valve, also known as a manual knife gate valve or a through-type knife gate valve, is a type of valve used to control the flow of fluids or solid materials. Its main characteristic is that the gate and valve seat maintain a tight seal at all times. The valve is opened or closed by moving the gate up and down or horizontally via a drive mechanism. The structure of a slide gate valve typically includes a valve body, gate, lead screw, seals, and drive mechanism. Currently, its main problem is unreliable sealing. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a ash discharge slide gate valve, comprising a valve body and a lead screw. A valve plate is installed in a slot on the valve body, and a nut seat is fixedly connected to the upper part of the valve plate. A rolling bearing seat is installed on the upper part of the valve body, the lower part of the lead screw cooperates with the nut seat, and the upper part of the lead screw is fixed to the rolling bearing seat. A valve seat is welded into the valve body to cooperate with the valve plate, and a sealing component is provided at the position in the middle of the valve body where it cooperates with the valve plate.

[0004] Preferably, the sealing assembly includes a U-shaped gasket, graphite packing, U-shaped gasket I, U-shaped gasket II, and a gland.

[0005] Preferably, the gland is connected to the unequal angle steel on the valve body.

[0006] Preferably, the valve body is either a square valve body or a round valve body. The square valve body includes channel steel, angle steel, and a panel, while the round valve body includes a cylindrical body, channel steel, angle steel, and a panel.

[0007] Preferably, the lead screw shaft is connected to the drive device. Beneficial effects

[0008] By incorporating sealing components, the internal leakage rate of valves can be reduced, thereby extending valve lifespan. Attached Figure Description

[0009] Figure 1 This is a side view of the present invention (circular valve body); Figure 2 This is a structural diagram of the sealing assembly of this utility model.

[0010] In the diagram: 1. Valve body; 2. Valve seat; 3. Valve plate; 4. Sealing assembly; 401. Gland; 402. Fastener; 403. U-shaped washer I; 404. Graphite packing; 405. U-shaped washer II; 5. Nut seat; 6. Lead screw; 7. Bearing seat; 8. Valve body angle steel. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] See Figure 1-2 A ash discharge slide gate valve includes a valve body and a lead screw. The valve body is either a square valve body or a round valve body. The square valve body includes channel steel, angle steel, and a panel. The round valve body includes a cylindrical body, channel steel, angle steel, and a panel. A valve plate is installed in a slot on the valve body. A nut seat is fixedly connected to the upper part of the valve plate. A rolling bearing seat is installed on the upper part of the valve body. The lower part of the lead screw cooperates with the nut seat, and the upper part of the lead screw is fixed to the rolling bearing seat. The lead screw shaft is connected to a drive device. A valve seat is welded into the valve body to cooperate with the valve plate.

[0013] The drive unit rotates the lead screw, which, through the engagement of the lead screw and nut, causes the valve plate to open and close. A sealing assembly is installed in the middle of the valve body at the position where it mates with the valve plate. The sealing assembly includes a U-shaped washer, graphite packing, U-shaped washer I, U-shaped washer II, and a gland. The gland is connected to an unequal angle steel on the valve body. By tightening the gland, the graphite packing is compressed, and eventually the packing fills the gap, reducing internal leakage of the valve.

[0014] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A ash discharge slide gate valve, comprising a valve body and a lead screw, characterized in that, A valve plate is installed in a slot on the valve body. A nut seat is fixedly connected to the upper part of the valve plate. A rolling bearing seat is installed on the upper part of the valve body. The lower part of the lead screw cooperates with the nut seat, and the upper part of the lead screw is fixed to the rolling bearing seat. A valve seat is welded into the valve body to cooperate with the valve plate. A sealing component is set at the position in the middle of the valve body where it cooperates with the valve plate.

2. The ash discharge slide valve according to claim 1, characterized in that, The sealing assembly includes a U-shaped gasket, graphite packing, U-shaped gasket I, U-shaped gasket II, and a gland.

3. The ash discharge slide valve according to claim 2, characterized in that... The gland is connected to the unequal angle steel on the valve body.

4. The ash discharge slide valve according to claim 1, characterized in that... The valve body is either a square valve body or a round valve body. The square valve body includes channel steel, angle steel, and a panel. The round valve body includes a cylindrical body, channel steel, angle steel, and a panel.

5. A ash discharge slide valve according to claim 1, characterized in that... The lead screw shaft is connected to the drive device.

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