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Telemetering high-temp pressure resistant / differential pressure sensor

A differential pressure sensor, high temperature resistant technology, applied in the direction of measuring fluid pressure, measuring fluid pressure through electromagnetic components, instruments, etc., can solve problems such as unseen pressure and differential pressure sensors, affecting performance and service life, and prone to short circuits , to achieve the effect of reducing the occupied space, reasonable structural design and reducing the influence of temperature

Inactive Publication Date: 2005-08-10
SHENYANG SENSOR TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem of short circuit is easy to occur between the opposite electrodes formed by the above two pressure sensors
The electrode short circuit problem has been difficult to solve, therefore, affecting its performance and service life
So far, there have been no reports on pressure and differential pressure sensors for measuring high-temperature media above 250°C

Method used

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  • Telemetering high-temp pressure resistant / differential pressure sensor
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  • Telemetering high-temp pressure resistant / differential pressure sensor

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Embodiment Construction

[0020] according to Figure 1-3 The specific structure of the present invention will be described in detail. The device can be used alone, constituted as figure 1 The structure of the pressure sensor (transmitter) shown can also be used together, such as figure 2 The differential pressure sensor (transmitter) structure shown. It includes a sensor 1 and a pressure guiding element 3 connected through a capillary 2, etc. Wherein the sensor 1 can adopt various types of commercially available sensors. The specification and size of the capillary 2 should be a commercially available capillary matching the temperature of the sensor 1 and the measured medium according to the requirements of use. The pressure guiding element 3 is composed of connecting flange 4, measuring diaphragm 5, diaphragm hard core 6, rigid stress rod 7, breathing hole 8, anti-vibration guide sleeve 9, support body 10, isolation diaphragm holder 11, isolation diaphragm 12. It is composed of liquid pressure g...

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Abstract

The present invention relates to a remote transferred high temperature resstant pressure / differential pressure transducer. Said invention includes the following components: transducer, measuring membrane, isolating diaphragm, membrane hard core, connecting flange, rigid stress bar and membrane box. Said invention also provides their connection mode, and said invented transducer can raise accuracy of measurement, and can prolong its service life.

Description

technical field [0001] The invention relates to a sensor (transmitter) device for measuring medium pressure, in particular to a remote high-temperature-resistant pressure / differential pressure sensor (transmitter) for measuring high-temperature medium pressure. It is suitable for pressure and differential pressure measurement of high temperature medium above 250°C. Background technique [0002] At present, pressure / differential pressure sensors (transmitters) have been widely used in power stations, petrochemicals, metallurgy, papermaking, textiles, water conservancy, pharmaceuticals and other industries. Existing pressure / differential pressure sensors (transmitters) measure high-temperature media. Generally, they are filled with a liquid pressure-guiding medium, and the liquid pressure-guiding medium is used to isolate the temperature and transmit the pressure / differential pressure to the sensor. The existing pressure / differential pressure sensor (transmitter) cannot find ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L9/00G01L19/04G01L19/08
Inventor 段祥照
Owner SHENYANG SENSOR TECH INST
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