CN105607110B - A kind of Radon daughter acquisition measuring device and its application method - Google Patents

A kind of Radon daughter acquisition measuring device and its application method Download PDF

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CN105607110B
CN105607110B CN201610169233.3A CN201610169233A CN105607110B CN 105607110 B CN105607110 B CN 105607110B CN 201610169233 A CN201610169233 A CN 201610169233A CN 105607110 B CN105607110 B CN 105607110B
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radon
water
valve
measurement
room
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CN105607110A (en
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乐仁昌
何志杰
赖黎群
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Fujian Normal University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01TMEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16Measuring radiation intensity
    • G01T1/167Measuring radioactive content of objects, e.g. contamination

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Abstract

The present invention relates to a kind of Radon daughter acquisition measuring device and its application method, including purifying water pool, radon daughter collection room, measurement of radon daughters room, PC machine capture card and PC ends control and measure device;The radon daughter collection room into water sample flows into measurement of radon daughters room after radon daughter is gathered;The indoor probe of measurement of radon daughters sends the radiated signal detected to PC machine capture card, the PC machine capture card is converted into radioactivity total amount or gamma-spectrometric data after being used for the radiated signal for detecting probe digitlization, analyzing and processing is detected for PC ends control and measure device, measures radon daughter content.The present invention breaks tradition, with new radon daughter collection mode, the transient measurement of radon daughter and can continuously measure.Present invention design is reasonable, highly practical.

Description

A kind of Radon daughter acquisition measuring device and its application method
Technical field
The present invention relates to a kind of Radon daughter acquisition measuring device and its application methods.
Background technology
Radon gas is widely present in the main constructional ornamental material such as soil, brick, cement, granite as natural radiation object In, it is considered to be the second largest carcinogenic factor of smoking is only second to, radon has been classified as make one carcinogenic 19 kinds most by the World Health Organization One of main substance;Radon gas is a kind of tracer, it can indicate subterranean deposit, geological structure, earthquake etc., therefore radon gas Measurement is widely used in mineral product geology, hydrogeology, engineering geology, disaster geology, environmental geology etc., especially in earthquake In terms of prediction, therefore, the research to radon and its daughter measuring method and measuring instrument is always a hot spot in the field.
There was only Radon Measurement Using Activated by detecting gamma-rays to measure the method for Radon at present, but this method can only Cumulative measurement is carried out, transient measurement or continuous measurement can not be carried out.
The content of the invention
In order to solve deficiency of the prior art, it is an object of the invention to provide it is a kind of can be to the radon daughter in air Transient measurement or the acquisition measuring device and its application method that continuously measure.
To achieve the above object, the present invention uses following technical scheme:
A kind of Radon daughter gathers measuring device, including purifying water pool, radon daughter collection room, measurement of radon daughters Room, PC machine capture card and PC ends control and measure device;
The purifying water pool provides water source for radon daughter collection room, and the water in purifying water pool passes through water pump through the first aqueduct Radon daughter collection room is introduced, the first valve is set on first aqueduct;
The radon daughter collection room is equipped with nozzle, air inlet, gas outlet and water outlet, and the nozzle is located at radon daughter and adopts Collection ceiling portion is connected with water pump, and nozzle generates a large amount of fine liquid particles and sprays, and washes away the radon daughter in radon daughter acquisition room air, institute It states air inlet and is located at below radon daughter collection room side wall and be connected with air pump, air inlet is is tested the inflow entrance of air, the outlet It is the outflux for being washed rear air that mouth, which is located above radon daughter collection room side wall, and the water outlet is located at radon daughter collection room bottom Portion is the outflux for washing away water sample after air, and the outflow direction of water sample has two, and the outflow direction of first water sample is:In radon In body gatherer process, water sample returns to radon daughter collection room through the second aqueduct by the second valve, water pump and nozzle, realizes Xun Huan It washes away, the outflow direction of second water sample is:After radon daughter gathers, water sample passes through the 3rd valve stream through the 3rd aqueduct Enter measurement of radon daughters room;
The measurement of radon daughters room includes water inlet, discharge outlet, probe and high water level detection sensor, low water level detection passes Sensor, the water inlet are located at measurement of radon daughters ceiling portion and are connected by the 3rd aqueduct with the water outlet of radon daughter collection room, The discharge outlet is located at measurement of radon daughters room bottom and is discharged the water sample after measurement by the 4th valve, and the probe and PC machine are adopted Truck is connected is placed in measurement of radon daughters room detecting the radioactivity of water sample in measurement of radon daughters room, and popping one's head in will detect Radiated signal sends PC machine capture card to, and the high water level detection sensor is located at the top of measurement of radon daughters room for detecting Whether measurement of radon daughters room water sample is full of, and low water level detection sensor is located at the bottom of measurement of radon daughters room for detecting radon daughter Whether measuring chamber water sample empties;
The PC machine capture card be used for by pop one's head in detect radiated signal digitlization after be converted into radioactivity total amount or Gamma-spectrometric data is detected analyzing and processing for PC ends control and measure device, measures radon daughter content.
First valve is arranged at the purifying water pool to the first aqueduct inlet of the water pump, second valve Door is arranged at the radon daughter collection room water outlet to the second aqueduct of the water pump, and the 3rd valve is arranged at described To on the 3rd aqueduct between the water inlet of the measurement of radon daughters room, the 4th valve is set radon daughter collection room water outlet At the discharge outlet of the measurement of radon daughters room.
The water pump and air pump are turned on and off by the control of PC ends control and measure device.
First valve, the second valve, the 3rd valve, the 4th valve are controlled by PC ends control and measure device to be opened or closes It closes.
Water in the purifying water pool is distilled water.
The measurement of the Radon daughter includes the following steps,
The measurement of radon daughter in water background is carried out first, is included the following steps:
Step S1:PC ends control and measure device initial work parameter, PC ends control and measure device are standby;
Step S2:Second valve, the 4th valve are closed, and the first valve, the 3rd valve opening start water pump, from pure water Water is extracted by radon daughter collection room and then arrives measurement of radon daughters room in pond;
Step S3:When high water level detection sensor is high level, show that the water sample of measurement of radon daughters room fills with, this When close the first valve, the 3rd valve and water pump, and start measurement, the radiated signal that will be detected of popping one's head in sends PC machine to and adopts Truck, the radiated signal that PC machine capture card detects probe are converted into radioactivity total amount or gamma-spectrometric data after digitizing, and supply PC ends control and measure device is detected analyzing and processing, measures radon daughter content in water background;Then the 4th valve, discharge are opened Water sample after measurement until when low water level detection sensor is high level, shows that the water sample of measurement of radon daughters room has been drained off, at this time Close the 4th valve;
Step S4:Determine whether to carry out the measurement of water background next time, if will, step S2 is re-executed to step S3。
Then the measurement of Radon daughter is carried out, is included the following steps:
Step S5:PC ends control and measure device initial work parameter, PC ends control and measure device are standby;
Step S6:Second valve, the 3rd valve, the 4th valve are closed, and the first valve opening starts water pump, from pure water Water is extracted to radon daughter collection room in pond;
Step S7:The first valve is closed, opens the second valve, starts water pump and air pump, water sample is through the second valve, water at this time Pump and nozzle return to radon daughter collection room, realize circulation scouring;
Step S8:Circulation scouring to after the predetermined time, close by the second valve, water pump and air pump, the 3rd valve is opened, by radon Water sample in daughter collection room introduces measurement of radon daughters room, when high water level detection sensor is high level, shows that radon daughter is surveyed The water sample of amount room fills with, and closes the 3rd valve at this time, and starts measurement, and the radiated signal that will be detected of popping one's head in is sent to PC machine capture card, the radiated signal that PC machine capture card detects probe are converted into radioactivity total amount or power spectrum number after digitizing According to being detected analyzing and processing for PC ends control and measure device, deduct and measure Radon in water background after radon daughter content Body content;The 4th valve is opened, the water sample after discharge measurement when low water level detection sensor is high level, shows that radon daughter is surveyed The water sample of amount room has been drained off, and closes the 4th valve at this time;
Step S9:Determine whether to carry out the measurement of Radon daughter next time, if will, re-execute step S6 To step S8.
Radon daughter in air is dissolved into water and is formed water sample using above technical scheme by the present invention, so as to by radon Body acquisition is got up, and water pump, air pump, the first valve, the second valve, the 3rd valve, the 4th valve etc. control measurement dress by PC ends Control is put, realizes acquisition, the measurement full-automation of radon daughter, the present invention breaks tradition, real with new radon daughter collection mode Show the transient measurement of radon daughter and can continuously measure.Present invention design is reasonable, highly practical.
Description of the drawings
The radon daughter acquisition measuring device of the present invention is done further specifically below in conjunction with the drawings and specific embodiments It is bright:
Fig. 1 is that the radon daughter of the present invention gathers the structure diagram of measuring device.
Specific embodiment
As shown in Figure 1, a kind of Radon daughter acquisition measuring device, including purifying water pool 1, radon daughter collection room 5, Measurement of radon daughters room 10, PC machine capture card 14 and PC ends control and measure device 13;
The purifying water pool 1 provides water source for radon daughter collection room 5, and the water in purifying water pool 1 passes through through the first aqueduct 3 Radon daughter collection room is adopted in water pump E introducings, and the first valve A is set on first aqueduct 3;
The radon daughter collection room 5 is equipped with nozzle 7, air inlet 9, gas outlet 8 and water outlet 6, and the nozzle 7 is located at radon 5 top of daughter collection room is connected with water pump E, and nozzle 7 generates a large amount of fine liquid particles and sprays, and washes away in 5 air of radon daughter collection room Radon daughter, the air inlet 9 is located at below 5 side wall of radon daughter collection room and be connected with air pump F, and air inlet 9 is is tested air Inflow entrance, the gas outlet 8 are located above 5 side wall of radon daughter collection room to be washed the outflux of rear air, the water outlet 6 It is the outflux for washing away water sample after air to be located at 5 bottom of radon daughter collection room, and the outflow direction of water sample has two, first water sample Outflow direction be:In radon daughter gatherer process, water sample is returned through the second aqueduct 4 by the second valve B, water pump E and nozzle 7 To radon daughter collection room 5, circulation scouring is realized, the outflow direction of second water sample is:After radon daughter gathers, water sample warp 3rd aqueduct 15 flows into measurement of radon daughters room 10 by the 3rd valve C;
The measurement of radon daughters room 10 includes water inlet 16, discharge outlet 12, probe 11 and high water level detection sensor G, low Level detection sensor H, the water inlet 16 are located at 10 top of measurement of radon daughters room and are adopted by the 3rd aqueduct 15 with radon daughter The water outlet 6 of collection room 5 connects, and the discharge outlet 12 is located at 10 bottom of measurement of radon daughters room will be after measurement by the 4th valve D Water sample is discharged, and the probe 11 is connected with PC machine capture card 14 to be placed in measurement of radon daughters room 10 detecting measurement of radon daughters The radioactivity of water sample in room 10, probe 11 send the radiated signal detected to PC machine capture card 14, the high water level inspection It surveys sensor G and is located at the top of measurement of radon daughters room 10 for detecting whether 10 water sample of measurement of radon daughters room is full of, low water level inspection It surveys sensor H and is located at the bottom of measurement of radon daughters room 10 for detecting whether 10 water sample of measurement of radon daughters room empties;
The PC machine capture card 14 is total for being converted into radioactivity after the 11 radiated signals digitlizations detected that will pop one's head in Amount or gamma-spectrometric data, are detected analyzing and processing for PC ends control and measure device 13, measure radon daughter content.
The first valve A is arranged at 3 inlet of the first aqueduct that the purifying water pool 1 arrives the water pump E, and described the Two valve B are arranged at 5 water outlet 6 of radon daughter collection room to the second aqueduct 4 of the water pump E, the 3rd valve C 5 water outlet of radon daughter collection room is arranged to the 3rd aqueduct 15 between 10 water inlet 16 of measurement of radon daughters room On, the 4th valve D is arranged at the discharge outlet 12 of the measurement of radon daughters room 10.
The water pump E and air pump F is turned on and off by the control of PC ends control and measure device 13.
The first valve A, the second valve B, the 3rd valve C, the 4th valve D are opened by the control of PC ends control and measure device 13 It opens or closes.
Water in the purifying water pool 1 is distilled water.
The measurement of the Radon daughter includes the following steps,
The measurement of radon daughter in water background is carried out first, is included the following steps:
Step S1:PC ends control 13 device initialization running parameters of measurement, PC ends control and measure device 13 are in shape of awaiting orders State;
Step S2:Second valve B, the 4th valve D are closed, and the first valve A, the 3rd valve C are opened, and start water pump E, from pure Water purifying tank 1 extracts water by radon daughter collection room 5 and then arrives measurement of radon daughters room 10;
Step S3:When high water level detection sensor G is high level, show that the water sample of measurement of radon daughters room 10 has filled It is full, the first valve A, the 3rd valve C and water pump E are closed at this time, and start measurement, probe 11 passes the radiated signal detected PC machine capture card 14 is given, it is total that the radiated signals that PC machine capture card 14 detects probe 11 are converted into radioactivity after digitizing Amount or gamma-spectrometric data, are detected analyzing and processing for PC ends control and measure device 13, measure radon daughter content in water background;Then The 4th valve D is opened, the water sample after discharge measurement until when low water level detection sensor H is high level, shows measurement of radon daughters room 10 water sample has been drained off, and closes the 4th valve D at this time;
Step S4:Determine whether to carry out the measurement of water background next time, if will, step S2 is re-executed to step S3。
Then the measurement of Radon daughter is carried out, is included the following steps:
Step S5:13 initial work parameter of PC ends control and measure device, PC ends control and measure device 13 are in shape of awaiting orders State;
Step S6:Second valve B, the 3rd valve C, the 4th valve D are closed, and the first valve A is opened, and start water pump E, from pure Water purifying tank 1 extracts water to radon daughter collection room 5;
Step S7:The first valve A is closed, opens the second valve B, starts water pump E and air pump F, water sample is through the second valve at this time Door B, water pump E and nozzle 7 return to radon daughter collection room 5, realize circulation scouring;
Step S8:To after the predetermined time, the second valve B, water pump E and air pump F are closed circulation scouring, open the 3rd valve C, Water sample in radon daughter collection room 5 is introduced into measurement of radon daughters room 10, when high water level detection sensor G is high level, is shown The water sample of measurement of radon daughters room 10 fills with, and closes the 3rd valve C at this time, and starts measurement, and probe 11 is put what is detected Penetrating property signal sends PC machine capture card 14 to, and the radiated signal that PC machine capture card 14 detects probe is converted into after digitizing Radioactivity total amount or gamma-spectrometric data are detected analyzing and processing for PC ends control and measure device 13, deduct radon daughter in water background Radon daughter content is measured after content;The 4th valve D, the water sample after discharge measurement are opened, low water level detection sensor H is During high level, show that the water sample of measurement of radon daughters room 10 has been drained off, close the 4th valve D at this time;
Step S9:Determine whether to carry out the measurement of Radon daughter next time, if will, re-execute step S6 To step S8.

Claims (6)

1. a kind of Radon daughter gathers measuring device, it is characterised in that:It includes purifying water pool, radon daughter collection room, radon Daughter measuring chamber, PC machine capture card and PC ends control and measure device;
The purifying water pool provides water source for radon daughter collection room, and the water in purifying water pool is introduced through the first aqueduct by water pump Radon daughter collection room sets the first valve on first aqueduct;
The radon daughter collection room is equipped with nozzle, air inlet, gas outlet and water outlet, and the nozzle is located at radon daughter collection room Top is connected with water pump, and nozzle generates a large amount of fine liquid particles and sprays, and washes away the radon daughter in radon daughter acquisition room air, it is described into Gas port is located at below radon daughter collection room side wall and is connected with air pump, and air inlet is the inflow entrance of tested air, and the gas outlet is set It is located at radon daughter collection room bottom for the outflux of air after being washed, the water outlet and is above the radon daughter collection room side wall The outflux of water sample after air is washed away, the outflow direction of water sample there are two, and the outflow direction of first water sample is:It is adopted in radon daughter During collection, water sample returns to radon daughter collection room through the second aqueduct by the second valve, water pump and nozzle, realizes circulating flushing Brush, the outflow direction of second water sample is:After radon daughter gathers, water sample is flowed into through the 3rd aqueduct by the 3rd valve Measurement of radon daughters room;
The measurement of radon daughters room includes water inlet, discharge outlet, probe and high water level detection sensor, low water level detection sensing Device, the water inlet are located at measurement of radon daughters ceiling portion and are connected by the 3rd aqueduct with the water outlet of radon daughter collection room, institute It states discharge outlet and is located at measurement of radon daughters room bottom by the 4th valve by the water sample discharge after measurement, the probe and PC machine gather Card, which is connected, to be placed in measurement of radon daughters room for detecting the radioactivity of water sample in measurement of radon daughters room, is popped one's head in and is put what is detected Penetrating property signal sends PC machine capture card to, and the high water level detection sensor is located at the top of measurement of radon daughters room for detecting radon Whether daughter measuring chamber water sample is full of, and low water level detection sensor is located at the bottom of measurement of radon daughters room for detecting radon daughter survey Whether amount room water sample empties;
The PC machine capture card is converted into radioactivity total amount or power spectrum after being used for the radiated signal for detecting probe digitlization Data are detected analyzing and processing for PC ends control and measure device, measure radon daughter content.
2. a kind of Radon daughter acquisition measuring device according to claim 1, it is characterised in that:First valve The purifying water pool is arranged to the first aqueduct inlet of the water pump, second valve is arranged at the radon daughter and adopts Collect room water outlet to the second aqueduct of the water pump, the 3rd valve is arranged at the radon daughter collection room water outlet and arrives On the 3rd aqueduct between the water inlet of the measurement of radon daughters room, the 4th valve is arranged at the measurement of radon daughters room At discharge outlet.
3. a kind of Radon daughter acquisition measuring device according to claim 1, it is characterised in that:The water pump is gentle Pump is turned on and off by the control of PC ends control and measure device.
4. a kind of Radon daughter acquisition measuring device according to claim 1, it is characterised in that:First valve Door, the second valve, the 3rd valve, the 4th valve are turned on and off by the control of PC ends control and measure device.
5. a kind of Radon daughter acquisition measuring device according to claim 1, it is characterised in that:The purifying water pool Interior water is distilled water.
6. a kind of application method of Radon daughter acquisition measuring device according to claim 1, it is characterised in that:It is described The measurement of Radon daughter includes the following steps,
The measurement of radon daughter in water background is carried out first, is included the following steps:
Step S1:PC ends control and measure device initial work parameter, PC ends control and measure device are standby;
Step S2:Second valve, the 4th valve are closed, and the first valve, the 3rd valve opening start water pump, are taken out from purifying water pool Water intaking is by radon daughter collection room and then arrives measurement of radon daughters room;
Step S3:When high water level detection sensor is high level, shows that the water sample of measurement of radon daughters room fills with, close at this time The first valve, the 3rd valve and water pump are closed, and starts measurement, the radiated signal that will be detected of popping one's head in sends PC machine acquisition to Card, the radiated signal that PC machine capture card detects probe is converted into radioactivity total amount or gamma-spectrometric data after digitizing, for PC End control and measure device is detected analyzing and processing, measures radon daughter content in water background;Then the 4th valve is opened, discharge is surveyed Water sample after amount until when low water level detection sensor is high level, shows that the water sample of measurement of radon daughters room has been drained off, closes at this time Close the 4th valve;
Step S4:Determine whether to carry out the measurement of water background next time, if will, step S2 is re-executed to step S3;
Then the measurement of Radon daughter is carried out, is included the following steps:
Step S5:PC ends control and measure device initial work parameter, PC ends control and measure device are standby;
Step S6:Second valve, the 3rd valve, the 4th valve are closed, and the first valve opening starts water pump, is taken out from purifying water pool It fetches water to radon daughter collection room;
Step S7:Close the first valve, open the second valve, start water pump and air pump, at this time water sample through the second valve, water pump and Nozzle returns to radon daughter collection room, realizes circulation scouring;
Step S8:Circulation scouring to after the predetermined time, close by the second valve, water pump and air pump, the 3rd valve is opened, by radon daughter Water sample in collection room introduces measurement of radon daughters room, when high water level detection sensor is high level, shows measurement of radon daughters room Water sample fill with, close the 3rd valve at this time, and start measurement, the radiated signal that will be detected of popping one's head in sends PC machine to Capture card, the radiated signal that PC machine capture card detects probe are converted into radioactivity total amount or gamma-spectrometric data after digitizing, Analyzing and processing is detected for PC ends control and measure device, deducts measuring Radon daughter after radon daughter content in water background and contain Amount;The 4th valve is opened, the water sample after discharge measurement when low water level detection sensor is high level, shows measurement of radon daughters room Water sample have been drained off, at this time close the 4th valve;
Step S9:Determine whether to carry out the measurement of Radon daughter next time, if will, step S6 is re-executed to step Rapid S8.
CN201610169233.3A 2016-03-23 2016-03-23 A kind of Radon daughter acquisition measuring device and its application method Active CN105607110B (en)

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CN106842275B (en) * 2017-04-10 2023-08-01 福建师范大学 Device and method for measuring radon exhalation rate of surface under natural environment condition
CN107807380B (en) * 2017-12-14 2023-08-11 福建师范大学 Instrument coefficient scale device and method for radon measurement by activated carbon box
CN109187902B (en) * 2018-09-19 2021-06-15 衡阳师范学院 Intermittent continuous sampling water radon measuring device and method
CN110873890B (en) * 2019-12-18 2023-03-28 核工业航测遥感中心 Atmospheric radon correction method for aviation radioactive spectrum data

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