Radon detector calibrating device and regulation and control system for keeping concentration stable

A technology of verification device and regulation system, applied in the direction of control/regulation system, instrument, radiation measurement, etc., can solve the problems of re-adjusting temperature and humidity, unable to verify multiple radon detectors at the same time, etc., to achieve easy operation, simple structure, Practical effect

Pending Publication Date: 2020-04-14
HENAN PROVINCE INST OF METROLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a radon measuring instrument verification device and its control system for maintaining stabl

Method used

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  • Radon detector calibrating device and regulation and control system for keeping concentration stable
  • Radon detector calibrating device and regulation and control system for keeping concentration stable
  • Radon detector calibrating device and regulation and control system for keeping concentration stable

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Embodiment 1

[0030] Embodiment 1, the present invention is a radon measuring device verification device and its control system for maintaining stable concentration, characterized in that it includes a radon chamber main box 1, and said radon chamber main box 1 is respectively fixedly connected with an exhaust gas Filter room 2, intake filter room 3, radon source distribution room 4, temperature and humidity control room 5, in which:

[0031] The radon chamber main cabinet 1 is used for instrument detection, and a stable radon concentration field is generated in the radon chamber main cabinet 1, which is used to verify and calibrate the radon measuring instrument. At the same time, the radon chamber main cabinet 1 is also the main cabinet of the temperature and humidity chamber , able to maintain a stable temperature and humidity environment;

[0032] Activated carbon is filled in the exhaust filter chamber 2, and the exhaust filter chamber 2 communicates with the outside world. When the ra...

Embodiment 2

[0037] Embodiment two, on the basis of embodiment one, described radon gas source box 6 is an empty box, described radon gas source box 6 communicates with outside air, and radon gas source box 6 is provided with valve at communicating with outside air , the radon source box 6 can be sealed when the air is not needed to fill in the air.

Embodiment 3

[0038] Embodiment three, on the basis of embodiment one, the described radon chamber main box body 1 is provided with a shelf, and the shelf is used to place the radon measuring instrument to be verified in the radon room main box body 1, which is convenient for multiple Verification of radon detectors;

[0039] A platform 9 is arranged outside the main box body 1 of the radon room, and a plurality of through holes 10 are provided on one side of the main box body 1 of the radon room, and sealing plugs 11 are disassembled and installed in some of the through holes 10, and the radon is measured to be tested. The data line of the instrument is placed outside through the sealing plug 11, and the computer of the corresponding radon measuring instrument can be placed on the platform 9 and connected with the corresponding data line, thereby obtaining the real-time monitoring data of the radon measuring instrument to be tested in the outside world, and with this The radon concentratio...

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Abstract

The invention relates to a randon detector calibrating device and a regulation and control system for keeping concentration stable, and effectively solves the problems that an existing device cannot simultaneously calibrate a plurality of emanometers, and the temperature and the humidity need to be regulated again in each calibration. According to the device, the radon detector calibrating devicecomprises a radon chamber main box body, wherein the radon chamber main box body is fixedly communicated with an exhaust filtering chamber, an intake filtering chamber, a radon source distribution chamber and a temperature and humidity control chamber respectively; the exhaust filtering chamber is filled with activated carbon and is communicated with the outside; the air inlet filtering chamber isfilled with activated carbon and is communicated with the outside; a dehumidification air conditioner, a cooling air conditioner, a heater and a humidification boiler are arranged in the temperatureand humidity regulation and control chamber; the device is simple in structure, convenient to operate, capable of effectively calibrating multiple radon measuring instruments and controlling the temperature and humidity of the radon measuring environment at the same time, and high in practicability.

Description

technical field [0001] The invention relates to the technical field of instrument verification, in particular to a radon meter verification device and a control system for keeping the concentration stable. Background technique [0002] Due to the different working principles, calibration methods and stability of various radon and radon daughter measuring instruments, the measurement results are significantly different. Therefore, it is necessary to establish corresponding standards and calibration devices in order to calibrate various widely used radon measuring instruments. , Calibration to ensure accurate and reliable measurement results. The standard radon chamber is a closed space that can provide uniform, stable and adjustable concentrations of radon and radon daughters. Combined with the measurement standards of radon and radon daughters, it can perform calibration and verification of radon and radon daughter measuring instruments. The ratio between different devices ...

Claims

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Application Information

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IPC IPC(8): G01T7/00G05D27/02
CPCG01T7/005G05D27/02
Inventor 龙成章李胜春刘莹姜鲲王攀峰王双玲司延召刘辉李静唐盟高颖毛哲周云森高申星
Owner HENAN PROVINCE INST OF METROLOGY
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