Device for mounting and checking pressure sensor and method for correcting pressure sensor
A technology of pressure sensor and calibration device, which is applied in the direction of measuring device, measuring fluid pressure, instrument, etc., can solve the problems of convenience and reliability of maintenance and calibration of low-temperature liquid cooling unit, and achieves compact structure, simple and reliable, and good maintainability. Effect
Active Publication Date: 2011-04-20
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
Therefore, if the existing single-function mounting bracket is used, it cannot meet the requirements of the convenience of maintenance and calibration and reliability of the cryogenic liquid cooling unit
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[0027] Such as figure 1 , 2 , 3, and 4, in this embodiment, the orifice-type mounting block 2 is a cuboid-shaped structure as a whole, divided into two parts on the left and right, which are respectively the high-pressure end and the low-pressure end, and the high-pressure tee pipe combination provided at the high-pressure end includes a central The branch pipes whose lines are perpendicular to each other, namely: the valve pipe 21, the sensor pipe 22 and the interface pipe of the object to be measured 20, the openings of the valve pipe, the sensor pipe and the interface pipe of the object to be measured are respectively located on different outer sides of the orifice plate type installation block. on the wall, and the center line of the valve pipeline, the sensor pipeline and the interface pipeline of the tested body is perpendicular to the outer wall of the corresponding orifice plate type mounting block; the valve pipeline 21, the sensor pipeline 22 and the tested body inte...
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The invention provides a device for mounting and checking a pressure sensor. The device for mounting and checking the pressure sensor adopts a mounting structure integrating a mounting interface, a correcting interface, a replacing interface and the like of the pressure sensor, wherein the whole mounting structure is simple and reliable and is easy to operate. The device for mounting and checking the pressure sensor comprises a pore plate type mounting block serving as a supporting piece, wherein the pore plate type mounting block is provided with more than one group of three-way pipeline combinations; and three openings of the three-way pipeline combinations are positioned on the outer wall surface of the pore plate type mounting block and are connected with a valve, the sensor and an interface of a body to be tested respectively. The invention also provides a method for correcting the pressure sensor. The detection method comprises the following steps of: twisting off a seal cap of a fluorine-injecting nozzle; connecting one end of a pressure pipe with a top center type joint with the fluorine-injecting nozzle, and connecting the other end of the pressure pipe with a pressure gage for correcting; and jacking a valve core of the fluorine-injecting nozzle by using the top center type joint, so that a pressure cavity of the pressure sensor is communicated with the pressure gage for correcting while seal, namely, the pressure detected by the pressure gage for correcting is the same as that detected by the pressure sensor, the accuracy of the correction is guaranteed, and the method is simple and reliable and is easy to operate.
Description
technical field [0001] The invention belongs to the technical field of pressure detection, and in particular relates to the installation of a pressure sensor, a verification device and a calibration method of a pressure sensor. Background technique [0002] For cryogenic liquid cooling units, the pressure test requires high measurement accuracy, which requires the selection of high-precision pressure sensors, but the sensors that meet this requirement on the market cannot be small in size and cannot be directly installed on the pipeline . Therefore, it is necessary to design a special bracket to install the pressure sensor. Based on the existing various mounting brackets, none of them have maintenance and calibration functions. Therefore, if the existing single-function mounting bracket is used, the requirements such as convenience of maintenance and calibration and reliability of the cryogenic liquid cooling unit cannot be met. Contents of the invention [0003] The tec...
Claims
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IPC IPC(8): G01L19/00G01L27/00
Inventor 苗志强
Owner GREE ELECTRIC APPLIANCES INC