Ceramic double-gate feed valve

A technology of double gates and feed valves, which is applied in the direction of sliding valves, valve devices, engine components, etc., can solve the problems of difficulty in meeting the needs of normal production and operation, high processing precision of valves, and unsuitability for granular medium working conditions, etc. To achieve the effect of simple and clear overall structure design, ensuring safe and stable operation, and good economic benefits

Active Publication Date: 2016-11-09
中一节能耐磨技术宜兴有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional metal gate valves have rectangular or knife-shaped gates. The valve seat is made of non-metallic materials, such as polytetrafluoroethylene and various rubbers. Switching action, the opening torque of the valve is large, and it is not suitable for granular media such as powder, granules, slag-water mixture, ore slurry, and the serv

Method used

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  • Ceramic double-gate feed valve
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Examples

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Example Embodiment

[0013] Embodiment 1: A ceramic double gate feed valve, including a middle metal valve body 1, left and right flanges (2, 3) connected to the two ends of the metal valve body 1, and a valve stem opened at the center of the top of the metal valve body 1. Hole 4. The valve stem 5 is arranged in the valve stem hole 4. The top end of the valve stem 5 is connected to the pneumatic actuator 6, the bottom end is connected to the spring seat 7, the left flange 2 is provided with a valve seat hole, and the valve seat hole is equipped with a ceramic valve The seat 8, the spring seat 7 includes a horizontal pipe body 7.1 located on the same central axis as the valve seat hole, and a vertical connecting end 7.2 arranged at the center of the side wall of the horizontal pipe body 7.1, the vertical connecting end 7.2 and the bottom end of the valve stem 5 Fixed connection, a spring 9 is arranged in the center of the horizontal tube body 7.1. The two ends of the spring 9 are sleeved on one end o...

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PUM

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Abstract

The invention discloses a ceramic double-gate feed valve. The ceramic double-gate feed valve comprises two side flanges made of metal, a middle valve body, a graphite gasket, an O-shaped ring, a valve rod, a stuffing box assembly, a stuffing gland, a ceramic valve seat, a ceramic ring, metal disc-shaped gates, a spring seat, supporting ejector rods, a stand column, a pneumatic actuator, an inner hexagonal bolt and a double-ended bolt and nut, wherein the metal disc-shaped gates and the ceramic ring jointly form the gates of the ceramic double-gate feed valve; the ceramic ring and the ceramic valve seat form a ceramic sealing pair; the pneumatic actuator pushes the valve rod and the spring seat, and drives the gates to move up and down, so that opening and closing action of the valve is completed; in the movement process of the gates, a spring enables the gates cling to the surface of the ceramic valve seat through the supporting ejector rods, so that stable and reliable sealing is guaranteed; and meanwhile, the gates generate autoroatation during linear motion due to the function of friction force, so that the ceramic double-gate feed valve has self-grinding performance and self-cleaning performance.

Description

technical field [0001] The invention belongs to the technical field of general mechanical valves, in particular to a ceramic double-gate feeding valve. Its structure is that the actuator pushes the valve stem to move up and down together with the gate plate through the spring seat to realize the switching action of the valve. The sealing surface of the gate plate is closely attached to the ceramic valve seat by the pressure of the spring, and the spring pressure always makes the gate plate tightly fit on the valve seat. Background technique [0002] The valve is a control component in the pipeline fluid conveying system, which is used to change the passage section and the flow direction of the medium, and has the functions of diversion, cut-off, throttling, check, diversion or overflow and pressure relief. Valves used for fluid control range from the simplest shut-off valve to various valves used in extremely complex automatic control systems. Valves for industrial pipelin...

Claims

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Application Information

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IPC IPC(8): F16K3/02F16K3/16F16K3/314
CPCF16K3/0254F16K3/0263F16K3/029F16K3/16F16K3/314
Inventor 王泽强张仁洪
Owner 中一节能耐磨技术宜兴有限公司
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