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Deep well pressure switch used in high temperature high pressure environment

A high temperature and high pressure, pressure switch technology, applied in electrical switches, electrical components, circuits, etc., can solve the problems of low safety and poor reliability, and achieve the effect of good safety, few parts and simple structure

Active Publication Date: 2014-07-30
重庆生普石油设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned deficiencies in the prior art, the main purpose of the present invention is to solve the problems of poor reliability and low safety of existing switch devices when used in deep wells, and to provide a reliable Working deep well pressure switch

Method used

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  • Deep well pressure switch used in high temperature high pressure environment
  • Deep well pressure switch used in high temperature high pressure environment
  • Deep well pressure switch used in high temperature high pressure environment

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 , figure 2 with image 3 As shown, a deep well pressure switch for high temperature and high pressure environment, it includes an input electrode 2 and an output electrode 3 arranged in the barrel 1, where the barrel 1 is an existing drill pipe barrel, usually in the shape of a cylinder , can be a multi-section structure, and various equipment such as motors and detectors are installed in the cylinder body 1, and the pressure switch of the present invention is also installed in the cylinder body 1. The input electrode 2 is cylindrical and arranged axially in the barrel, and the output electrode 3 is block-shaped. During installation, the input electrode 2 and the output electrode 3 are respectively connected to power lines. The side of one end of the input electrode 2 is recessed inwardly to form a ring-shaped ring g...

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Abstract

The invention provides a deep well pressure switch used in high temperature high pressure environment, comprising an input electrode and an output electrode which are arranged in a barrel, wherein a ring slot is formed at one end of the input electrode, a positioning nut connected with a screw thread on the inner wall of the barrel is sheathed on the ring slot, one end of the positioning nut resists against the input electrode, and the other end of the positioning nut resists against a locking nut on the input electrode; a contact hole is arranged at the other end of the input electrode, an elastic contact head is arranged on the axis and is kept in contact with the output electrode, the other end of the axis penetrates the barrel and then is fixed on a diaphragm spring, the diaphragm spring is fixed on the barrel by virtue of a support disk and a sealed cavity is formed between the diaphragm spring and the support disk; and the axis is sheathed with an insulation nut, and the insulation nut is arranged between the output electrode and the diaphragm spring and is in clearance fit with the barrel. The pressure switch provided by the invention has good reliability and good safety, has simple structure and is also convenient to mount.

Description

technical field [0001] The invention belongs to the technical field of electromechanical equipment switches, and specifically introduces a deep well pressure switch used in high temperature and high pressure environments. Background technique [0002] In the process of deep well drilling, the electronic equipment in the drill pipe body needs to be equipped with corresponding control switches to control the operation of each equipment. The existing control switch usually adopts traditional power switch or isolating switch. However, because the diameter of the well is very small, and the deep well is full of mud and gravel, accompanied by high temperature, high pressure and strong vibration. In the environment, the safety of ordinary control switches is difficult to be guaranteed, and it is easy to break down. It is difficult to continue to work stably and reliably under huge pressure, resulting in a short service life. At the same time, due to the great depth of the mine, in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H35/34
Inventor 赵巧宏
Owner 重庆生普石油设备制造有限公司
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