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Reliable flat gate valve with sand prevention function

A slab gate valve and sand control technology, applied to valve details, valve devices, sliding valves, etc., can solve problems such as increasing the opening and closing torque force of slab gate valves, shortening the service life of slab gate valves, and accelerating the wear of valve seats and valve plates. Achieve the effect of reducing the accumulation of sand and gravel, increasing the airtightness and reducing the torque

Pending Publication Date: 2022-04-22
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, oil and gas often contain gravel, which easily enters the gap between the valve body and the valve seat. When too much gravel accumulates, the valve seat cannot float, increasing the opening and closing torque of the flat gate valve, and accelerating the contact between the valve seat and the valve plate. Wear, shorten the service life of the flat gate valve

Method used

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  • Reliable flat gate valve with sand prevention function
  • Reliable flat gate valve with sand prevention function
  • Reliable flat gate valve with sand prevention function

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Embodiment Construction

[0019] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] Such as Figure 1 to Figure 4 As shown, a reliable flat gate valve with sand control function of the present invention includes a flat gate valve body 1, a gasket 2, a control mechanism and a driving mechanism, and the gasket 2 is cooperatingly installed at the water holes at the left and right ends of the flat gate valve body 1 , the control mechanism is installed in the cavity of the flat gate valve body 1 with sliding, the driving mechanism is installed on the top of the flat gate valve body 1, and the driving mechanism is connected with the control mechanism; the control mechanism includes a valve plate 3, a transmission beam 4, a sliding sleeve 5, and a straigh...

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Abstract

The invention relates to the technical field of flat gate valves, in particular to a reliable flat gate valve with a sand prevention function, which reduces gravel accumulation, reduces torsion during position adjustment of a valve plate, reduces friction loss of a device and prolongs the service life of the device. Comprising a flat gate valve body, a sealing gasket, a control mechanism and a driving mechanism, the control mechanism is slidably installed in a cavity of the flat gate valve body in a matched mode, and the driving mechanism is installed at the top end of the flat gate valve body and connected with the control mechanism in a matched mode; the control mechanism comprises a valve plate, a transmission beam, a sliding sleeve, spur racks, a limiting plate, a connecting pin, a sealing ring, a spring and an adjusting mechanism, the spur racks are symmetrically installed at the connecting end of the transmission beam and connected with the driving mechanism in a matched mode, and the limiting plate is installed at the top end of the connecting pin which is slidably connected with a through cavity of the flat gate valve body in a matched mode. The adjusting mechanism is installed in an inner cavity of the flat gate valve body, the top ends of the springs are installed at the bottom end of the limiting plate, and the bottom ends of the springs are installed at the top end of the adjusting mechanism.

Description

technical field [0001] The invention relates to the technical field of slab gate valves, in particular to a reliable slab gate valve with sand control function. Background technique [0002] As we all know, the slab gate valve is a sliding valve whose closure is a parallel gate. The closing part can be a single ram or a double ram with a stretching mechanism in between. The pressing force of the gate to the valve seat is controlled by the medium pressure acting on the floating gate or the floating valve seat. If it is a flat gate valve with double gates, the expansion mechanism between the two gates can supplement this pressing force. Slab gate valves can be divided into manual slab gate valves, pneumatic slab gate valves and electric slab gate valves according to the driving mode. According to the purpose and use occasion, it can be divided into flat gate valve with diversion hole, flat gate valve without diversion hole, oil field flat gate valve, pipeline flat gate valv...

Claims

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Application Information

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IPC IPC(8): F16K3/02F16K3/30F16K3/314F16K27/04F16K31/54F16K31/60
CPCF16K3/0227F16K3/0281F16K3/30F16K3/314F16K27/044F16K31/54F16K31/60Y02E10/20
Inventor 徐忠华戴京孟庆武徐婷婷
Owner YANCHENG INST OF TECH
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