A low-temperature liquid temperature and pressure measurement lead wire device

A temperature measurement, temperature and pressure technology, applied in the direction of measuring devices, measuring fluid pressure, thermometers, etc., can solve the problems of poor sealing effect, damage to measurement and control equipment, large heat leakage, etc., and achieve small measurement errors, good insulation and sealing performance, and leakage hot little effect
CN103453932BActive Publication Date: 2016-08-10STATE GRID CORP OF CHINA +3
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2016-08-10

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a low-temperature liquid temperature and pressure measurement lead wire device, which includes a temperature measurement lead wire sleeve, a pressure measurement communication pipe, a first sealing flange, a second sealing flange, a first sealing member, a second sealing member, a nut and a base ; A first seal and a second seal are arranged axially inside the base; the bottom end of the first seal is in the shape of an annular groove, which is used to match the protrusion on the top of the second seal; the first seal and There is a first sealing flange between the second sealing parts; a second sealing flange coaxial with the first sealing flange is arranged in the second sealing part; the temperature measurement lead sleeve and the pressure measurement connecting pipe are a set , pass through the first sealing member and the second sealing member, and be welded on the first sealing flange and the second sealing flange; the top of the base is provided with a nut, and the nut is sleeved on the periphery of the first sealing member. The device of the invention is used to monitor the low-temperature liquid environment in real time, and the measurement is relatively accurate, and the invention has simple structure, convenient assembly and good insulation and sealing performance.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of low-temperature superconductivity, and in particular relates to a lead wire device for measuring the temperature and pressure of a low-temperature liquid. Background technique

[0002] The stable operation of superconducting power devices requires real-time monitoring of the cryogenic liquid environment. The signal measurement leads need to span from the room temperature region outside the cryostat to the low temperature region inside the cryostat, causing some heat leakage. For small superconducting power devices, it is of great significance to reduce the heat leakage as much as possible. In addition, when the signal measurement leads pass through the cryostat, they must also meet the requirements of electrical insulation, airtightness and pressure resistance.

[0003] At present, the sealing plug is generally used as the transition device for the temperature measurement lead wire, but when used in the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More