CN111007562A - Radon detector calibrating device and regulating and controlling system for keeping concentration stable - Google Patents
Radon detector calibrating device and regulating and controlling system for keeping concentration stable Download PDFInfo
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- CN111007562A CN111007562A CN202010031460.6A CN202010031460A CN111007562A CN 111007562 A CN111007562 A CN 111007562A CN 202010031460 A CN202010031460 A CN 202010031460A CN 111007562 A CN111007562 A CN 111007562A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/005—Details of radiation-measuring instruments calibration techniques
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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Abstract
The invention relates to a radon measuring instrument calibrating device and a regulating and controlling system for keeping the concentration stable, which effectively solve the problems that the existing device can not calibrate a plurality of radon measuring instruments simultaneously and the temperature and the humidity need to be regulated again during each calibration; the technical scheme for solving the problem is that the radon chamber main box body is fixedly communicated with an exhaust filter chamber, an intake filter chamber, a radon source distribution chamber and a temperature and humidity control chamber; the exhaust filtering chamber is filled with active carbon and is communicated with the outside; the air inlet filter chamber is filled with active carbon and communicated with the outside; a dehumidification air conditioner, a cooling air conditioner, a heater and a humidification boiler are arranged in the temperature and humidity control chamber; the radon measuring instrument is simple in structure and convenient to operate, can effectively test a plurality of radon measuring instruments and simultaneously control the temperature and the humidity of a radon measuring environment, and is high in practicability.
Description
Technical Field
The invention relates to the technical field of instrument verification, in particular to a radon measuring instrument verification device and a regulation and control system for keeping concentration stable.
Background
Because the working principle, calibration method and stability of various radon and radon daughter measuring instruments are different, and the difference between the measuring results is obvious, a corresponding standard and calibration device needs to be established so as to scale and calibrate various widely-used radon measuring instruments and ensure the accuracy and reliability of the measuring results. The standard radon chamber can provide a closed space with uniform, stable and adjustable concentration of radon and radon daughter, is combined with the metering standard of radon and daughter, can carry out calibration verification of a radon and radon daughter measuring instrument, compares different devices, and is also an experimental device for researching the behaviors and control of radon and radon daughter.
For the verification of the radon measuring instrument, the condition that a plurality of devices need to be verified in the same batch often occurs, and the verification efficiency of the instrument is obviously greatly reduced by detecting one device by one device. Meanwhile, different temperatures and humidity have large influence on radon concentration, and the temperature and the humidity need to be adjusted every time of detection, so that the detection efficiency of the radon detector is further reduced. Therefore, a calibrating device capable of calibrating a plurality of radon detectors simultaneously and adjusting the temperature and the humidity of a radon chamber is urgently needed.
Therefore, the invention provides a radon measuring instrument calibrating device and a regulating and controlling system for keeping the concentration stable to solve the problem.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the radon measuring instrument calibrating device and the regulating and controlling system for keeping the concentration stable, and the problems that the prior device cannot calibrate a plurality of radon measuring instruments simultaneously and the temperature and the humidity need to be regulated again every time of calibration are effectively solved.
The radon chamber main box body is respectively and fixedly communicated with an exhaust filtering chamber, an intake filtering chamber, a radon source distribution chamber and a temperature and humidity control chamber;
the exhaust filter chamber is filled with active carbon and is communicated with the outside;
the air inlet filter chamber is filled with active carbon and communicated with the outside;
a radon source and a radon gas source box are arranged in the radon source distribution chamber, both the radon source and the radon gas source box are communicated with a radon source concentration circulator arranged in the radon source distribution chamber, the radon source concentration circulator is communicated with a radon concentration regulating instrument arranged in the radon source distribution chamber, and the radon concentration regulating instrument is communicated with the main box body of the radon chamber;
the temperature and humidity regulation and control chamber is internally provided with a dehumidification air conditioner, a cooling air conditioner, a heater and a humidification boiler.
Preferably, a radon source bin containing a radon source is arranged in the radon source distribution chamber, and the radon source is an Ra-226 source adsorbed by the resin.
Preferably, the radon gas source box is an empty box, and the radon gas source box is communicated with the outside air.
Preferably, a storage rack is arranged in the radon chamber main box body.
Preferably, a platform is arranged outside the radon chamber main box body, a plurality of through holes are formed in one side of the radon chamber main box body, and sealing plugs are detachably mounted in the plurality of through holes.
Preferably, one side of the main box body of the radon chamber is fixedly connected with a computer, and the computer is electrically connected with the radon source concentration circulator and the radon concentration regulating and controlling instrument.
Preferably, the radon chamber owner box in fixed connection have temperature sensor and humidity transducer, temperature sensor, humidity transducer, dehumidification air conditioner, cooling air conditioner, heater, humidification boiler all with the computer electricity connect.
Preferably, the novel radon measuring instrument calibrating device further comprises a water purifying system, and the water purifying system is communicated with the humidifying boiler.
Preferably, the communicating parts of the radon chamber main box body, the exhaust filtering chamber and the temperature and humidity control chamber are provided with fans, and the fans are fans with shutters.
Preferably, the radon chamber main box body is fixedly communicated with a transition chamber.
Preferably, a control module and an output and input module are integrated in the computer, the control module comprises a fan control unit, a circulator control unit, a regulation and control instrument control unit, a temperature and humidity control unit and a water purification system control unit, and the fan control unit comprises an exhaust fan control unit and a temperature and humidity fan control unit.
The invention makes improvement aiming at the problem that the prior device can not simultaneously verify a plurality of radon detectors and the temperature and humidity need to be regulated again during each verification, and adopts an air circulation system formed by a main radon chamber box body, an air inlet filtering chamber and an air outlet filtering chamber, so that the radon detectors can be effectively and simultaneously verified; the radon concentration in the main box body of the radon chamber is controlled by a radon concentration regulating instrument and a radon source concentration circulator, the same detection environment is provided for the calibrated radon measuring instrument, and transverse comparison is convenient to perform during calibration; the environmental conditions in the main box body of the radon chamber are controlled through the temperature sensor, the humidity sensor, the temperature and humidity control chamber and the computer, so that a plurality of radon measuring instruments to be detected are positioned in the same environment, the environment is more conveniently controlled, and meanwhile, the transverse comparison can be better realized.
Drawings
Fig. 1 is a schematic plan view of the present invention.
FIG. 2 is a schematic perspective view of a radon chamber main box body and a related structure thereof.
FIG. 3 is a schematic perspective view of a radon chamber main box body and a related structure thereof.
FIG. 4 is a top-removed perspective view of the radon chamber main box and its related structure of the present invention.
FIG. 5 is a schematic view of the radon chamber main box and its related structure shown in the rear view of the door.
FIG. 6 is a schematic diagram of a control module according to the present invention.
Detailed Description
The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 6. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The embodiment I is characterized by comprising a radon chamber main box body 1, wherein the radon chamber main box body 1 is respectively and fixedly communicated with an exhaust filtering chamber 2, an intake filtering chamber 3, a radon source distribution chamber 4 and a temperature and humidity control chamber 5, wherein:
the radon chamber main box body 1 is used for instrument detection, a stable radon concentration field is generated in the radon chamber main box body 1 and is used for calibrating the radon measuring instrument, and meanwhile, the radon chamber main box body 1 is also used as a main box body of a temperature and humidity box and can keep a stable temperature and humidity environment;
the exhaust filter chamber 2 is filled with active carbon, the exhaust filter chamber 2 is communicated with the outside, when the radon chamber main box body 1 discharges radon, the radon needs to be filtered out through the exhaust filter chamber 2 in order to reduce the pollution to the environment, the exhaust filter chamber 2 is filled with the active carbon to play a role of adsorbing the radon, and the radon is directly discharged to the outside after the exhaust filter chamber 2 is discharged;
the air inlet filter chamber 3 is filled with active carbon, the air inlet filter chamber 3 is communicated with the outside, when radon is discharged from the radon chamber main box body 1, in order to ensure the balance of the air pressure inside and outside the radon chamber, the radon chamber air inlet needs to be filled with the active carbon, large particles are filtered, other substances are adsorbed, and the air inlet of the air inlet filter chamber 3 is arranged indoors, so that the radon chamber air inlet passes through the air inlet filter chamber 3;
a radon source and a radon gas source box 6 are placed in the radon source distribution chamber 4, the radon source and the radon gas source box 6 are both communicated with a radon source concentration circulator 7 placed in the radon source distribution chamber 4, a radon source chamber 18 containing a radon source is arranged in the radon source distribution chamber 4, the radon source is an Ra-226 source adsorbed by resin, the radon source chamber 18 is communicated with the radon source concentration circulator 7 through a pipeline, the radon source concentration circulator 7 is communicated with a radon concentration regulating instrument 8 placed in the radon source distribution chamber 4, the radon concentration regulating instrument 8 is communicated with the radon chamber main box body 1, when the radon gas is generated, the radon source concentration circulator 7 is needed to distribute the gas into the radon source box firstly, the radon concentration circulator is used for mixing the radon source with the air to form high-concentration radon gas, and when the radon gas is generated, the radon concentration regulating instrument 8 is used to take the gas from the radon gas source box 6;
the temperature and humidity control room is internally provided with a dehumidifying air conditioner, a cooling air conditioner, a heater and a humidifying boiler, which are all conventional common structures, wherein the dehumidifying air conditioner is used for dehumidifying, the cooling air conditioner is used for reducing the temperature, the heater is used for increasing the temperature, the heater can be an air conditioner or other common heating equipment, the humidifying boiler is used for heating water to generate the increased air humidity, and the dehumidifying air conditioner, the cooling air conditioner and the heater are separately arranged, so that the simultaneous multiple adjustment can be realized;
this embodiment is when specifically using, put into radon chamber main tank 1 with a plurality of emanometer that wait to detect, and close the door of radon chamber main tank 1 and seal radon chamber main tank 1, later through radon concentration regulation and control appearance 8 to filling into radon gas in the radon chamber main tank 1, radon concentration regulation and control appearance 8 and radon chamber main tank 1 pass through the pipeline intercommunication this moment, the radon concentration of whole environment of radon concentration regulation and control appearance 8 detectable, the radon gas concentration in the calibrating personnel accessible radon concentration regulation and control appearance 8 control radon chamber main tank 1, later the environment in accessible temperature and humidity control room 5 control radon chamber main tank 1, after the calibration, through exhaust filter chamber 2 and the filter chamber 3 of admitting air discharge the radon gas in the radon chamber main tank 1 can. The specific time and the flow of the verification can refer to the verification procedure of the JJG 825-plus 2013 radon measuring instrument
In the second embodiment, on the basis of the first embodiment, the radon gas source box 6 is an empty box, the radon gas source box 6 is communicated with the outside air, and a valve is arranged at the communication position of the radon gas source box 6 and the outside air, so that the radon gas source box 6 can be sealed when air is not needed to be supplemented.
In the third embodiment, on the basis of the first embodiment, a storage rack is arranged in the radon chamber main box body 1 and is used for placing the radon detectors to be detected in the radon chamber main box body 1, so that the detection of a plurality of radon detectors is facilitated;
the platform 9 is arranged outside the radon chamber main box body 1, a plurality of through holes 10 are arranged on one side of the radon chamber main box body 1, a plurality of sealing plugs 11 are detachably arranged in the through holes 10, a data line of the radon meter to be detected and arranged outside after penetrating through the sealing plugs 11, a computer of the corresponding radon meter can be placed on the platform 9 and connected with the corresponding data line, so that real-time monitoring data of the radon meter to be detected are obtained outside, and the relative ratio of the radon concentration of the radon meter to be regulated and controlled by the radon concentration regulation and control instrument 8 in the device is compared, and the accuracy of the radon meter is detected.
In the fourth embodiment, on the basis of the first embodiment, a computer 12 is fixedly connected to one side of the radon chamber main box body 1, the computer 12 is electrically connected with the radon source concentration circulator 7 and the radon concentration regulation and control instrument 8, and corresponding control software is installed in the computer 12, so that the computer 12 can directly control the on-off of the radon concentration circulator and the working state of the radon concentration regulation and control instrument 8;
radon room owner box 1 internal fixation connected with temperature sensor 13 and humidity transducer 14, temperature sensor 13, humidity transducer 14, dehumidification air conditioner, cooling air conditioner, heater, humidification boiler all with computer 12 electricity connect, the integrated well accuse module that has in computer 12, install control software in the computer 12, the operating condition of accessible well accuse module control dehumidification air conditioner, cooling air conditioner, heater, humidification boiler accepts the real-time information in the radon room owner box 1 of temperature sensor 13, the monitoring of humidity transducer 14.
Fifth embodiment, on the basis of first embodiment, novel emanometer calibrating installation still include water purification system 15, water purification system 15 with humidification boiler intercommunication, water purification system 15 is linked together with external water source, water purification system 15 is common distillation water purification installation for there are not other magazines in the water that obtains, from preventing that the water vapor that humidification boiler evaporates influences the environment in the radon chamber main tank body 1, thereby influences the verification result.
Sixth embodiment, on the basis of first embodiment, the communicating parts of the main box body 1 of the radon chamber, the exhaust filter chamber 2 and the temperature and humidity control chamber 5 are all provided with fans 16, the fans 16 at the main box body 1 of the radon chamber and the exhaust filter chamber 2 are used for pumping the radon gas in the main box body 1 of the radon chamber into the exhaust filter chamber 2 after the verification is finished and discharging the radon gas to the outside through filtering, the fans 16 at the temperature and humidity control chamber 5 are the same as those used for blowing the gas after heating, cooling, humidifying and dehumidifying into the main box body 1 of the radon chamber and circulating the radon gas in the main box body 1 of the radon chamber into the temperature and humidity control chamber 5 for treatment, so as to form an environment in the main box body 1 of the radon chamber with stable circulation, the fans 16 are fans 16 with louvers, and the arrangement can seal the corresponding communicating parts when not needed, thereby not.
In the seventh embodiment, on the basis of the first embodiment, the radon chamber main box body 1 is fixedly communicated with the transition chamber 17, and the transition chamber 17 plays a role of double-door protection in order to prevent radon gas inside from diffusing to the room where the radon chamber is located when the radon chamber main box body 1 enters and exits.
Eighth embodiment, on the basis of first embodiment, integrated control module and output input module in the computer, control module include fan control unit, circulation appearance control unit, regulation and control appearance control unit, temperature and humidity control unit, water purification system control unit, fan control unit include exhaust fan control unit and temperature and humidity fan control unit, wherein:
the circulator control unit is electrically connected with the radon source concentration circulator 7, can control the working state of the radon source concentration circulator 7, can mix the radon source in the radon source bin 18 with the air in the radon source box 6 to form a high-concentration radon source and store the high-concentration radon source in the radon source box 6;
the regulating and controlling instrument control unit is electrically connected with the radon concentration regulating and controlling instrument 8 and can control the working state of the radon concentration regulating and controlling instrument 8;
the temperature and humidity control unit is electrically connected with electronic components in the temperature and humidity control chamber 5, and specifically, a dehumidification air conditioner control unit, a cooling air conditioner control unit, a heater control unit and a humidification boiler control unit are integrated in the temperature and humidity control unit and are respectively and electrically connected with a dehumidification air conditioner, a cooling air conditioner, a heater and a humidification boiler;
the water purification system control unit is electrically connected with the water purification system 15 and is used for controlling the working state of the water purification system 15;
the fan control unit comprises an exhaust fan control unit and a temperature and humidity fan control unit which are respectively used for controlling a fan 16 communicated with the exhaust filter chamber 2 and a fan 16 communicated with the temperature and humidity control chamber 5;
the input and output module is a display screen and a key, the display screen and the key can be integrated on a touch screen, the temperature sensor 13, the humidity sensor 14 and the input and output module are electrically connected, real-time temperature and humidity can be conveniently displayed, and therefore a user can conveniently and timely regulate and control the temperature and the humidity.
When the radon detection device is used specifically, a plurality of radon detectors to be detected are placed in a main radon chamber box body 1, a data line of the radon detector to be detected is placed outside through a sealing plug 11, a platform 9 can prevent a computer of the corresponding radon detector from being connected with the corresponding data line, so that real-time monitoring data of the radon detector to be detected are obtained outside, then doors of the main radon chamber box body 1 and a transition chamber 17 are closed, then radon gas is filled into the main radon chamber box body 1 through a radon concentration control instrument 8, at the moment, the radon concentration control instrument 8 is communicated with the main radon chamber box body 1 through a pipeline, the radon concentration control instrument 8 can detect the radon concentration of the whole environment, a person to be detected can control the radon concentration in the main radon chamber box body 1 through a radon concentration control instrument 8, then can control the environment in the main radon chamber box body 1 through a temperature and humidity control chamber 5, and compare the real-time monitoring data of the radon detector read in the radon detector by an external computer with the radon concentration control instrument 8 in, thereby verifying the accuracy of the emanometer;
after the verification is finished, the radon gas in the radon chamber main box body 1 is exhausted by the fan 16 of the exhaust filtering chamber 2, and in the process, the air inlet filtering chamber 3 can supplement gas in the radon chamber main box body 1 under the air exhaust action of the fan 16 to ensure the air pressure.
The invention makes improvement aiming at the problem that the prior device can not simultaneously verify a plurality of radon detectors and the temperature and humidity need to be regulated again during each verification, and adopts an air circulation system formed by a main radon chamber box body, an air inlet filtering chamber and an air outlet filtering chamber, so that the radon detectors can be effectively and simultaneously verified; the radon concentration in the main box body of the radon chamber is controlled by a radon concentration regulating instrument and a radon source concentration circulator, the same detection environment is provided for the calibrated radon measuring instrument, and transverse comparison is convenient to perform during calibration; the environmental conditions in the main box body of the radon chamber are controlled through the temperature sensor, the humidity sensor, the temperature and humidity control chamber and the computer, so that a plurality of radon measuring instruments to be detected are positioned in the same environment, the environment is more conveniently controlled, and meanwhile, the transverse comparison can be better realized.
Claims (9)
1. A calibrating device for a radon measuring instrument and a regulation and control system for keeping the stable concentration of the calibrating device are characterized by comprising a radon chamber main box body (1), wherein the radon chamber main box body (1) is respectively and fixedly communicated with an exhaust filtering chamber (2), an intake filtering chamber (3), a radon source distribution chamber (4) and a temperature and humidity control chamber (5);
the exhaust filter chamber (2) is filled with active carbon, and the exhaust filter chamber (2) is communicated with the outside;
the air inlet filter chamber (3) is filled with active carbon, and the air inlet filter chamber (3) is communicated with the outside;
a radon source and a radon gas source box (6) are arranged in the radon source distribution chamber (4), the radon source and the radon gas source box (6) are both communicated with a radon source concentration circulator (7) arranged in the radon source distribution chamber (4), the radon source concentration circulator (7) is communicated with a radon concentration regulating instrument (8) arranged in the radon source distribution chamber (4), and the radon concentration regulating instrument (8) is communicated with the radon chamber main box body (1);
a computer (12) is fixedly connected with one side of the radon chamber main box body (1), and the computer (12) is electrically connected with the radon source concentration circulator (7) and the radon concentration regulating and controlling instrument (8);
a dehumidification air conditioner, a cooling air conditioner, a heater and a humidification boiler are arranged in the temperature and humidity control chamber (5);
computer (12) in integrated control module and the input/output module that has, control module include fan control unit, circulation appearance control unit, regulation and control appearance control unit, temperature and humidity control unit, water purification system control unit, fan control unit include exhaust fan control unit and temperature and humidity fan control unit, wherein:
the control unit of the circulation instrument is electrically connected with the radon source concentration circulation instrument (7), the control unit of the circulation instrument is electrically connected with the radon concentration control instrument (8), the temperature and humidity control unit is internally integrated with a dehumidifying air-conditioning control unit, a cooling air-conditioning control unit, a heater control unit and a humidifying boiler control unit, and is respectively electrically connected with a dehumidifying air conditioner, a cooling air conditioner, a heater and a humidifying boiler, the water purification system control unit is communicated with an external water source, and the input and output module is a display screen and a key.
2. The radon measuring instrument calibrating device and the regulating system for keeping the concentration stable thereof according to claim 1, wherein a radon source chamber (18) containing a radon source is arranged in the radon source distributing chamber (4), and the radon source is an Ra-226 source adsorbed by resin.
3. The radon measuring instrument calibrating device and the regulating system for keeping the concentration stable thereof according to claim 1, wherein the radon gas source box (6) is an empty box, and the radon gas source box (6) is communicated with the outside air.
4. The radon measuring instrument calibrating device and the regulating system for keeping the concentration stable thereof according to claim 1, wherein a commodity shelf is arranged in the radon chamber main box body (1).
5. The radon measuring instrument calibrating device and the regulating system for keeping the concentration stable according to claim 1, wherein a platform (9) is arranged outside the radon chamber main box body (1), a plurality of through holes (10) are formed in one side of the radon chamber main box body (1), and sealing plugs (11) are detachably mounted in the plurality of through holes (10).
6. The radon measuring instrument calibrating device and the regulation and control system for keeping the concentration stable according to claim 5, wherein a temperature sensor (13) and a humidity sensor (14) are fixedly connected in the radon chamber main box body (1), and the temperature sensor (13), the humidity sensor (14), the dehumidifying air conditioner, the cooling air conditioner, the heater and the humidifying boiler are electrically connected with the computer (12).
7. The radon measuring instrument calibrating device and the regulating and controlling system for keeping the concentration stable according to claim 1, wherein the novel radon measuring instrument calibrating device further comprises a water purifying system (15), the water purifying system (15) is communicated with the humidifying boiler, and the water purifying system (15) is electrically connected with a control unit of the water purifying system (15).
8. The radon measuring instrument calibrating device and the regulating and controlling system for keeping the concentration stable according to claim 1, wherein fans (16) are arranged at the communication positions of the radon main box body, the exhaust and filtering chamber (2) and the temperature and humidity control chamber (5), and the fans (16) are fans (16) with shutters.
9. The radon measuring instrument calibrating device and the regulating system for keeping the concentration stable thereof according to claim 1, wherein the radon chamber main box body (1) is fixedly communicated with a transition chamber (17).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010031460.6A CN111007562A (en) | 2020-01-13 | 2020-01-13 | Radon detector calibrating device and regulating and controlling system for keeping concentration stable |
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| CN202010031460.6A CN111007562A (en) | 2020-01-13 | 2020-01-13 | Radon detector calibrating device and regulating and controlling system for keeping concentration stable |
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| CN202010031460.6A Pending CN111007562A (en) | 2020-01-13 | 2020-01-13 | Radon detector calibrating device and regulating and controlling system for keeping concentration stable |
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Cited By (1)
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| CN112098625A (en) * | 2020-09-05 | 2020-12-18 | 宁波弘宇检测有限公司 | Radon gas detection method |
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| CN202075416U (en) * | 2010-12-15 | 2011-12-14 | 河南省建筑科学研究院有限公司 | Combined radon chamber for calibration emanometer |
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| CN112098625A (en) * | 2020-09-05 | 2020-12-18 | 宁波弘宇检测有限公司 | Radon gas detection method |
| CN112098625B (en) * | 2020-09-05 | 2022-10-25 | 宁波弘宇检测有限公司 | Radon gas detection method |
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