阅读说明：本技术 一种瓦斯压力检测仪的检定装置 (Calibrating device of gas pressure detector ) 是由 童紫原 童敏明 唐守锋 李猛 孙海波 李童童 于 2019-11-12 设计创作，主要内容包括：本发明公开了一种瓦斯压力检测仪的检定装置,其特征在于:主要由主控制器、瓦斯空气混合器、气体流量控制器、检定气室、压力传感器和数据采集器构成。其中主控制器的输出接气体流量控制器的输入端,瓦斯空气混合器的输出接气体流量控制器的输入端、气体流量控制器的输出接检定气室的输入端,压力传感器的输入端接通检定气室,压力传感器的输出接数据采集器的输入端,数据采集器的输出接主控制器的输入端。该装置主要用于瓦斯压力检测仪器的检定。(The invention discloses a calibrating device of a gas pressure detector, which is characterized by mainly comprising a main controller, a gas-air mixer, a gas flow controller, a calibrating gas chamber, a pressure sensor and a data acquisition unit. The output of the main controller is connected with the input end of the gas flow controller, the output of the gas-air mixer is connected with the input end of the gas flow controller, the output of the gas flow controller is connected with the input end of the verification air chamber, the input end of the pressure sensor is connected with the verification air chamber, the output of the pressure sensor is connected with the input end of the data acquisition unit, and the output of the data acquisition unit is connected with the input end of the main controller. The device is mainly used for detecting the gas pressure detecting instrument.)

1. A calibrating device of a gas pressure detector is characterized by mainly comprising a main controller, a gas-air mixer, a gas flow controller, a calibrating gas chamber, a pressure sensor and a data collector. The output of the main controller is connected with the input end of the gas flow controller, the output of the gas-air mixer is connected with the input end of the gas flow controller, the output of the gas flow controller is connected with the input end of the verification air chamber, the input end of the pressure sensor is connected with the verification air chamber, the output of the pressure sensor is connected with the input end of the data acquisition unit, and the output of the data acquisition unit is connected with the input end of the main controller.

2. The verification air chamber of claim 1 is a cuboid airtight box made of stainless steel plates, and a coal rock simulation material is filled in the box and comprises quartz sand, aggregate, stone powder and cement, wherein the ratio of the materials is 2: 2: 3: 3.

3. the pressure sensor of claim 1, wherein the gas pressure is sensed by a gas inlet at an input end thereof, the gas inlet being in communication with the assay chamber for sensing the pressure of the gas in the assay chamber.

4. The gas-air mixer as claimed in claim 1, which comprises 1 gas container, 2 solenoid valves and 1 solenoid valve controller, wherein the gas container has two gas inlets and one gas outlet, the two gas inlets are respectively connected with the 2 solenoid valves, and the gas outlet is connected with the verification gas chamber; 2 electromagnetic valves are respectively connected with gas and compressed air to control the air flow introduced into the gas container; the input of the electromagnetic valve controller is connected with the output end of the main controller, and the output of the electromagnetic valve controller is respectively connected with the control ends of the 2 electromagnetic valves.

Technical Field

The invention relates to a calibrating device of a gas pressure detector, in particular to a calibrating technology of a gas pressure detector.

Background

A gas pressure detection instrument is a mine safety instrument and is mainly used for detecting the gas pressure in a coal seam drilling hole. The gas pressure calibrating device generally adopts the gas pressure that the pressure generator produced to directly input into the probe of gas pressure detecting instrument in at present, and there is certain difference with actual detection environment, and the verification result can produce certain error, is unfavorable for gas pressure detecting instrument's reliable verification.

Disclosure of Invention

In order to solve the verification problem of the gas pressure detector, the invention provides the verification device of the gas pressure detector, which can conveniently perform regular verification and calibration on the gas pressure detector and ensure the reliability of detection data of the gas pressure detector.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a calibrating installation of gas pressure detector which characterized in that: the gas-air mixer mainly comprises a main controller, a gas-air mixer, a gas flow controller, a verification air chamber, a pressure sensor and a data acquisition unit. The output of the main controller is connected with the input end of the gas flow controller, the output of the gas-air mixer is connected with the input end of the gas flow controller, the output of the gas flow controller is connected with the input end of the verification air chamber, the input end of the pressure sensor is connected with the verification air chamber, the output of the pressure sensor is connected with the input end of the data acquisition unit, and the output of the data acquisition unit is connected with the input end of the main controller.

The detection air chamber is a cuboid closed box formed by stainless steel plates, the inside of the detection air chamber is filled with coal and rock simulation materials, the coal and rock simulation materials consist of quartz sand, aggregate, stone powder and cement, and the proportion of the coal and rock simulation materials is 2: 2: 3: 3.

the pressure sensor detects gas pressure, and the input end of the pressure sensor is a gas inlet which is communicated with the verification gas chamber and can detect the pressure of gas in the verification gas chamber.

The gas-air mixer is composed of 1 gas container, 2 electromagnetic valves and 1 electromagnetic valve controller, the gas container is provided with two gas inlet holes and one gas outlet hole, the two gas inlet holes are respectively connected with the 2 electromagnetic valves, and the gas outlet hole is connected with a verification gas chamber; 2 electromagnetic valves are respectively connected with gas and compressed air to control the air flow introduced into the gas container; the input of the electromagnetic valve controller is connected with the output end of the main controller, and the output of the electromagnetic valve controller is respectively connected with the control ends of the 2 electromagnetic valves.

The invention has the beneficial effects that:

the gas pressure detection instrument can be conveniently subjected to regular verification and calibration, and the reliability of detection data of the instrument is ensured.

Drawings

FIG. 1 is a schematic view of a calibrating apparatus of the gas pressure detector of the present invention;

fig. 2 is a schematic view of a gas-air mixer.

Description of reference numerals:

1-main controller, 2-gas air mixer, 3-gas flow controller, 4-pressure sensor, 5-data collector, 6-verification air chamber, 7-electromagnetic valve controller, 8-electromagnetic valve, 9-gas container.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The invention is further illustrated by the following figures and examples.

Fig. 1 shows a calibration device of the gas pressure detector according to the invention. The device mainly comprises a main controller 1, a gas-air mixer 2, a gas flow controller 3, a verification air chamber 6, a pressure sensor 4 and a data acquisition unit 5. The output of the main controller 1 is connected with the input end of the gas flow controller 3, the output of the gas-air mixer 2 is connected with the input end of the gas flow controller 3, the output of the gas flow controller 3 is connected with the input end of the verification air chamber 6, the input end of the pressure sensor 4 is connected with the verification air chamber 6, the output of the pressure sensor 4 is connected with the input end of the data collector 5, and the output of the data collector 5 is connected with the input end of the main controller 1.

The verification air chamber 6 is a cuboid airtight box formed by stainless steel plates, is filled with coal and rock simulation materials and consists of quartz sand, aggregate, stone powder and cement, and the proportion of the materials is 2: 2: 3: 3.

the pressure sensor 4 detects the gas pressure, and the input end of the pressure sensor is a gas inlet which is communicated with the verification gas chamber 6 and can detect the pressure of the gas in the verification gas chamber 6.

The gas-air mixer shown in fig. 2 is composed of 1 gas container 9, 2 electromagnetic valves 8 and 1 electromagnetic valve controller 7, wherein the gas container 9 is provided with two gas inlet holes and one gas outlet hole, the two gas inlet holes are respectively connected with the 2 electromagnetic valves 8, and the gas outlet hole is connected with a verification gas chamber; 2 electromagnetic valves 8 are respectively connected with gas and compressed air to control the air flow introduced into the gas container 9; the input of the electromagnetic valve controller 7 is connected with the output end of the main controller 1, and the output of the electromagnetic valve controller 7 is respectively connected with the control ends of 2 electromagnetic valves 8.

The data acquisition device 5 adopts an ART2000 module; the main controller 1 adopts an embedded control TQ210v 3; the electromagnetic valve controller 7 adopts a microprocessor with the model number of ATMEGA 16; the model of the pressure sensor 4 is MIK-P300; the solenoid valve 8 is model CKD 20.