Pressure transmitter with adjustable pressure sensor

A pressure sensor and transmitter technology, applied in the direction of measuring fluid pressure, instruments, measuring devices, etc., can solve the problems of inconvenient disassembly and assembly, poor sensor output accuracy, inability to adjust the position of the pressure sensor, etc., to achieve convenient adjustment and eliminate output. Effects of Precision Errors

Pending Publication Date: 2020-08-04
苏州贝特智能仪表有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These physical changes can cause sensor output accuracy to deteriorate
The existing pressure sensor installation structure is inconvenient to disassemble and assemble, and it is impossible to adjust the position of the pressure sensor

Method used

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  • Pressure transmitter with adjustable pressure sensor
  • Pressure transmitter with adjustable pressure sensor
  • Pressure transmitter with adjustable pressure sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] see Figure 1 to Figure 3 , the figure shows a pressure transmitter with an adjustable pressure sensor provided by Embodiment 1 of the present invention, including a gauge head 1 and a pressure joint 2, a joint pipe 11 is provided at the bottom of the gauge head 1, and the pressure joint 2 includes a connecting sleeve 21. Pressure sensor 22, sensor pressure sleeve 23 and transition sleeve 24, a cavity and a fluid pipeline 211 are arranged in the connection sleeve 21, a pressure sensor 22 is arranged in the cavity, the sensor pressure sleeve 23 is threaded in the cavity, and the fluid pipeline 211 is automatically The end of the connecting sleeve 21 extends to the cavity, the connecting sleeve 21 is screwed into the transition sleeve 24 , and the transition sleeve 24 is fixedly installed in the joint pipe 11 .

[0022] Specifically, see Figure 1 to Figure 3 , The transition sleeve 24 is bonded in the joint pipe 11.

[0023] The present invention provides a pressure tr...

Embodiment 2

[0026] see Figure 1 to Figure 3 , the figure shows a pressure transmitter with an adjustable pressure sensor provided by Embodiment 2 of the present invention. On the basis of the above embodiment, this embodiment further makes the following technical solutions as improvements: connecting sleeve When the 21 is fixedly installed in the transition sleeve 24, the surface of the thread is provided with epoxy resin glue.

[0027] The connection sleeve and the transition sleeve are fixed by the explosion-proof thread joint surface. When the connection sleeve is threaded into the transition sleeve, epoxy resin glue is applied to the thread, which can not only ensure the tightness of the installation, but also play a sealing effect to avoid affect the pressure sensor measurement.

Embodiment 3

[0029] see Figure 1 to Figure 3 , the figure shows a pressure transmitter with an adjustable pressure sensor provided by Embodiment 3 of the present invention. On the basis of the above embodiments, this embodiment further makes the following technical solutions as improvements: gauge head 1 is provided with a fixed cover 12, one end of the fixed cover 12 is provided with a cable connector 121, and the other end is provided with a plug 122; the cable connector 121 is a clamping joint.

[0030] The cable connector on the fixed cover on the meter head is connected to the explosion-proof cable, and the clamping connector ensures the tightness of the installation.

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PUM

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Abstract

The invention provides a pressure transmitter with an adjustable pressure sensor. The pressure transmitter comprises a gauge head and a pressure joint. A joint pipe is arranged at the bottom of the gauge head; the pressure joint comprises a connecting sleeve, a pressure sensor, a sensor pressing sleeve and a transition sleeve; a cavity and a fluid pipeline are arranged in the connecting sleeve; the pressure sensor is arranged in the cavity; the sensor pressing sleeve is in threaded connection in the cavity; the fluid pipeline extends to the cavity from the end of the connecting sleeve; the connecting sleeve is in threaded connection in the transition sleeve; and the transition sleeve is fixedly installed in the joint pipe. The pressure transmitter with the adjustable pressure sensor can flexibly achieve the adjustment and calibration of the pressure sensor.

Description

technical field [0001] The invention relates to a pressure transmitter, in particular to a pressure transmitter with an adjustable pressure sensor. Background technique [0002] A pressure transmitter is a device that converts pressure into a pneumatic signal or an electric signal for control and remote transmission. It can convert the physical pressure parameters such as gas and liquid felt by the load cell sensor into a standard electrical signal (such as 4~20mADC, etc.), to supply secondary instruments such as indicating alarms, recorders, regulators, etc. for measurement and indication and process regulation. [0003] As a result of prolonged overpressure in the past, the pressure sensor in a pressure transmitter undergoes several physical changes before the end of the transmitter's life, including repeated deformation and damage to metal parts due to overpressure. These physical changes can cause sensor output accuracy to deteriorate. The existing installation struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L19/00G01L19/14G01L27/00
CPCG01L19/0007G01L19/0061G01L19/14G01L19/147G01L27/005
Inventor 蒋晓明
Owner 苏州贝特智能仪表有限公司
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