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Gas fully enclosed sector blind valve

A fully enclosed and blind valve technology, which is applied to valve devices, sliding valves, mechanical equipment, etc., can solve problems such as short service life, bellows, sealing rings are easily damaged, and unsatisfactory applicability, so as to improve service life, Good sealing effect, convenient operation and maintenance

Active Publication Date: 2021-11-02
JIANGSU XINYUAN ELECTROMECHANICAL ENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The flapper valve (spectacles valve) used in the metallurgical industry has unsatisfactory applicability, short service life, and the bellows and sealing ring are easily damaged.

Method used

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  • Gas fully enclosed sector blind valve
  • Gas fully enclosed sector blind valve
  • Gas fully enclosed sector blind valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] A gas fully enclosed fan-shaped blind plate valve, comprising a valve body 1, a valve seat 2, and a valve cover 3, the valve body is provided with a gear box 4, and the left and right sides of the gear box are respectively connected to the first rotating shaft 5 and the second rotating shaft. The shaft 6 is fixedly connected, the first rotating shaft is connected with the electric drive device 7; the second rotating shaft is provided with a transmission shaft 8, the transmission shaft is connected with the gear transmission mechanism 9 in the gear box, the gear transmission mechanism is connected with the screw rod 10, and the wire The rod is connected with the gear transmission mechanism through the spline sleeve 11, and can move up and down along the spline sleeve; the screw nut 12 is connected with the left and right blind plates 13, 14, and a fixed dovetail groove 15 is arranged between the left and right blind plates. A wedge 16 that matches the dovetail groove and ...

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PUM

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Abstract

The invention discloses a gas fully enclosed fan-shaped blind plate valve. A gear box is arranged in the valve body. The left and right sides of the gear box are respectively fixedly connected with a first rotating shaft and a second rotating shaft, and the first rotating shaft is connected with a driving device; A transmission shaft is arranged in the second rotating shaft, and the transmission shaft is connected with the gear transmission mechanism in the gear box, and the gear transmission mechanism is connected with the screw mandrel, and the screw mandrel is connected with the gear transmission mechanism through a spline sleeve; the screw mandrel nut is connected with the left and right blind There is a fixed dovetail groove between the left and right blind plates, and a wedge matching the dovetail groove is set in the dovetail groove, and the wedge is connected with the screw rod through a bearing; the left and right blind plates are against the valve seat, and the left 1. The right blind plate is connected with the peripheral blind plate bracket, the upper end of the blind plate bracket is connected with the gearbox casing, the lower end of the blind plate bracket is connected with the guide wheel, and the guide wheel cooperates with the guide rail mounted on the valve seat. The sealing effect of the invention is good, the left and right double blind plates have no friction with the sealing surface of the valve seat, the service life of the valve is greatly improved, and the operation and maintenance are convenient.

Description

technical field [0001] The invention relates to a gas sector blind valve. Background technique [0002] The flapper valve (spectacles valve) used in the metallurgical industry has unsatisfactory applicability, short service life, and the bellows and sealing ring are easily damaged. And the national safety supervision requirements, gas pressure greater than 50KPa must use a fully enclosed blind valve. Contents of the invention [0003] The purpose of the present invention is to provide a gas fully-enclosed fan-shaped blind valve with good sealing performance and long service life. [0004] Technical solution of the present invention is: [0005] A gas fully enclosed fan-shaped blind valve, including a valve body, a valve seat, and a valve cover, is characterized in that: the valve body is provided with a gear box, and the left and right sides of the gear box are respectively fixedly connected to the first rotating shaft and the second rotating shaft , the first rotating ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/06F16K3/314F16K3/316F16K3/30
CPCF16K3/06F16K3/30F16K3/314F16K3/316
Inventor 沈惠冲
Owner JIANGSU XINYUAN ELECTROMECHANICAL ENG TECH CO LTD