Grinding tool for sealing face of safety valve

A technology for grinding tools and sealing surfaces, which is applied in the field of grinding tools for sealing surfaces of safety valves

Pending Publication Date: 2018-05-15
新乡中新化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the existing problems, the present invention provides a safety valve sealing surface grinding tool, which has strong operabilit...

Method used

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  • Grinding tool for sealing face of safety valve
  • Grinding tool for sealing face of safety valve
  • Grinding tool for sealing face of safety valve

Examples

Experimental program
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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, a safety valve sealing surface grinding tool includes a fixed wall 2, a grinding motor 6, a grinding head 9 and a preload disc, the grinding motor 6 is a low-speed grinding motor and is installed on the fixed wall 2, and the grinding motor The motor switch 61 of 6 is fixed on the lifting block 32, is also provided with the speed control knob 62 that controls the grinding motor 6 rotating speeds and the current pointer meter 63 that shows the grinding motor 6 current, the speed regulation knob 62 and the current pointer meter 63 are all fixed on the fixed On the wall 2, the grinding head 9 is installed on the output shaft of the grinding motor 6, and there are two types of grinding heads 9, namely, the valve seat grinding head and the disc grinding head, such as image 3 As shown, the grinding disc 91 in the valve seat grinding head ...

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PUM

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Abstract

The invention provides a grinding tool for a sealing face of a safety valve. The grinding tool is high in operability, simple to operate and high in adaptability. In the grinding process, secondary damage to the sealing face of the safety valve can be avoided effectively. A grinding head is mounted on an output shaft of a grinding motor; the grinding head faces the middle part of a pre-tighteningdisc; a transmission, a grinding buffer and a telescopic rod assembly are successively arranged between the grinding motor and the grinding head; the pre-tightening disc comprises a valve seat pre-tightening disc and a valve clack pre-tightening disc; a valve seat pre-tightening block of the valve seat pre-tightening disc is located on the lower surface of the valve seat pre-tightening disc; a processing through hole is formed in the middle of the valve seat pre-tightening disc; and the valve clack pre-tightening disc is locked on the valve seat pre-tightening disc by matching a locking tablewith the processing through hole; the buffer can avoid or reduce vibration caused by grinding of the motor and the grinding disc, so that the sealing face of the valve body is prevented from being vibrated or damaged; an oil storage room and an oil leakage hole are formed in the grinding disc, so that high temperature of the sealing face which is ground is reduced, and the sealing face is prevented from being stretched or being heated at the high temperature form a crack.

Description

technical field [0001] The invention relates to the technical field of safety valve manufacturing, in particular to a safety valve sealing surface grinding tool. Background technique [0002] At present, a large number of safety valves are installed in industries involving high temperature, high pressure, flammable and explosive media such as chemical industry and electric power. According to the relevant national regulations on safety supervision of special equipment, safety valves should be inspected and maintained regularly. The sealing effect of the safety valve sealing surface is the focus of safety valve maintenance. The sealing part of the safety valve is composed of a valve seat and a valve disc. During the inspection process, it is necessary to grind the valve seat and valve disc to ensure the sealing effect. [0003] During the use of the safety valve, the sealing surface will be gradually damaged, resulting in leakage. Therefore, repairing the sealing surface has...

Claims

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Application Information

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IPC IPC(8): B24B15/04B24B55/02B24B41/00B24B41/02B24B37/00B24B37/11B24B37/27B24B37/34
CPCB24B15/04B24B37/00B24B37/11B24B37/27B24B37/34B24B41/007B24B41/02B24B55/02
Inventor 李爱国张爱民郭相宏武大勇刘金贵魏聚广吉新杰文培娜
Owner 新乡中新化工有限责任公司
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