All-round verifying device for pressure instrument equipment

Abstract

The invention relates to an all-round verifying device for pressure instrument equipment. The all-round verifying device integrates a verifying device for hydraulic instrument equipment and a verifying device for air pressure instrument equipment in a combined mode so that the all-round verifying device can have the functions of verifying the two kinds of equipment. Control is performed through one same control system, a data processing module is assembled, so that collecting, processing and report generating of verification data are finished, and the device is high in automation degree, flexible in using and suitable for measuring external field pressure and particularly for verifying a pressure instrument of equipment in a guarantee for troops to carry out tasks in an unhindered way.

Description

technical field [0001] The invention relates to a testing device for instrumentation equipment, in particular to an all-round testing device for pressure instrumentation equipment. Background technique [0002] Pressure instrumentation equipment mainly includes hydraulic pressure and pneumatic pressure, specifically general pressure gauges, precision pressure gauges, pressure sensors, etc. There are also various devices used to verify pressure instrumentation equipment, which can be mainly divided into hydraulic verification and air pressure verification, such as The Chinese utility model patent with the announcement number 201852675U discloses a pressure gauge calibration device, including a fuel tank, a hand pump, a high-pressure system pipeline and a low-pressure system pipeline, a supercharger, a pressure relief valve, and the pressure relief valve between the two pressure relief valves. There is an oil return pipeline between them, and it is characterized in that: the s...

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Problems solved by technology

[0002] Pressure instrumentation equipment mainly includes hydraulic pressure and pneumatic pressure, specifically general pressure gauges, precision pressure gauges, pressure sensors, etc. There are also various devices used to verify pressure instrumentation equipment, which can be mainly divided into hydraulic verification and air pressure verification, such as The Chinese utility model patent with the announcement number 201852675U discloses a pressure gauge calibration device, including a fuel tank, a hand pump, a high-pressure system pipeline and a low-pressure system pipeline, a supercharger, a pressure relief valve, and the pressure relief valve between the two pressure relief valves. There is an oil return pipeline between them, and it is characterized in that: the supercharger includes a low-pressure area and a high-pressure area, the low-pressure area is connected to the low-pressure system pipeline, and the high-pressure area is connected to the high-pressure system pipeline; There is a standard weight calibration device, which can realize pressurization and widen the measurement range, but this device is mainly for hydraulic pressure instrument equipment, and the degree of automation is low, and the stability of the system is not high enough

Another example is that the Chinese utility model patent with the announcement number 202793688U discloses a pressure gauge verification device with air as the medium, including an air compressor, a gas booster pump, a hand pump, a pressure relief pipeline, and several interfaces. The machine is connected to the gas booster pump through two pipelines, one of which is provided with a high-pressure regulator and an air compressor output pressure control cut-off valve in turn; the gas booster pump is connected with an outlet pipeline, and the outlet pipeline is equipped with a High-pressure shut-off valve; each interface is connected with the gas outlet pipeline of the gas booster pump, and a shut-off valve is installed at the interface; a low-pressure pipeline is connected to the hand pump, and a reversing valve, a low-pressure regulator and a low-pressure regulator are arranged on the pipeline in turn. Stop valve, each interface is connected to the pipeline; pressure relief valve is installed on the pressure relief pipeline, and each interface is connected to the pressure relief pipeline respectively. Although this device is efficient, fast and environmentally friendly, it is mainly used for air pressure pressure instruments. Equipment, especially the oxygen pressure gauge, and its volume is relatively large and heavy. Generally, the volume of an air compressor with an output pressure of 6MPa can reach 300mm×350mm×300mm, and the weight can reach 20kg

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