CN210376706U - Double-channel type automatic water radon measuring device - Google Patents
Double-channel type automatic water radon measuring device Download PDFInfo
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- CN210376706U CN210376706U CN201921268910.2U CN201921268910U CN210376706U CN 210376706 U CN210376706 U CN 210376706U CN 201921268910 U CN201921268910 U CN 201921268910U CN 210376706 U CN210376706 U CN 210376706U
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Abstract
The utility model discloses a binary channels formula automatic measure water radon device through the sampling of bubbling at the uniform velocity of miniature air pump, makes radon gas high-efficient in the water sample appear steadily. The dual-channel detector can automatically complete background counting and radon accumulation counting measurement, so that the radon concentration measurement of a main sample and a secondary sample in underground fluid radon observation of earthquake precursors is met. The utility model has the advantages that: the device has the advantages of automatic measurement, digital display and simple structure, conforms to the technical specification of the earthquake industry, eliminates the complicated steps and manual errors of the original measurement method, ensures that the measurement result is accurate and reliable, and can be used for observing the water radon of the underground fluid of the earthquake precursor.
Description
Technical Field
The utility model relates to a binary channels formula automatic measure water radon device, concretely relates to seismic precursor underground fluid water radon is surveyd.
Background
Radon gas is the decay product of radium in three natural radioactive systems, and is a colorless and odorless radioactive and inert gas. Radon gas is soluble in water and widely distributed in underground spring water (such as natural hot spring).
Because radon gas has unique physicochemical properties and stronger seismic mapping property, the radon gas occupies an important position in underground fluid observation in the earthquake industry. The water radon observation can most intuitively capture the change of the water radon concentration in the underground water, thereby providing a theoretical basis for the research of earthquake precursors.
The water radon measurement standard in the earthquake hydrology and earth technical specification also adopts a scintillation method, and requires that the water radon concentrations of a main water sample and an auxiliary water sample are measured and subjected to deviation comparison. At present, the FD125 radon-thorium analyzer is recommended to be used for measuring radon in water by an earthquake row marker, the whole measuring process needs manual operation, and the following problems mainly exist: firstly, the operation steps are complicated. If a series of manual operation steps such as selecting a detector threshold value and high pressure, measuring the background of a scintillation chamber, carrying out negative pressure constant-speed bubbling, carrying out timing counting measurement and the like are carried out, special training needs to be carried out on measuring personnel. During the whole measuring period, various disconnecting and connecting measuring gas circuits, manual operation of a calibrator and the like are needed, and the whole measuring process must be familiar well so as not to cause errors. Secondly, the manual operation error is large. When a disk of the scintillation chamber is rotated to switch different scintillation chambers for measurement, light leakage is caused by the deterioration of the light shielding performance of the disk, and the measurement count is increased; the manual control stops the air clamp and guarantees that the bubble is at the uniform velocity during whole negative pressure tympanic bulla, is the operation that has the difficulty very much, leads to the degasification not thorough and then leads to the measurement count to diminish. And thirdly, manually calculating a result. According to the background count, the radon cumulative count, the water sample volume and other related parameters, the radon water result is calculated manually, and the workload and the measurement difficulty are increased.
Disclosure of Invention
In order to solve the problem, the utility model provides a binary channels formula automatic measure water radon device through miniature air pump at the uniform velocity tympanic bulla sampling, makes radon gas high-efficient appear steadily in the water sample. The dual-channel detector can automatically complete background counting and radon accumulation counting measurement, so that the radon concentration measurement of a main sample and a secondary sample in underground fluid radon observation of earthquake precursors is met. The radon counting in the two water samples is measured simultaneously, the requirement for observing the water radon of the earthquake can be rapidly finished at one time, and the working efficiency of the water radon measurement of personnel in the seismograph station is improved.
The technical scheme of the utility model is that:
a double-channel type automatic water radon measuring device is characterized in that a shell of the device is of a table structure with an inclined front surface, two sides of the device are provided with hand buckle groove type handles, and the right side of the device is provided with a double-channel type detector; a touch screen is embedded on the inclined plate on the front side of the device shell, and a start key is embedded on the decorative plate on the bottom of the front side; a detachable test tube bracket is arranged on the left side of the device shell, a water sample diffusion bottle is inserted into a test tube hole in the test tube bracket, and a gas port at the top of the water sample diffusion bottle is connected with a gas condensation ball; the position of a suck-back prevention capillary tube in the gas condensation ball is upward, a gas port at the top end of the gas condensation ball is connected with a main sample gas inlet through a hose, a gas outlet at the upper end side of a water sample diffusion bottle is connected with a main sample gas outlet through a hose, and two quick gas ports at the top end of a main detection detector are respectively connected with a main detection gas inlet and a main detection gas port; correspondingly, the upper part of the auxiliary detection detector is provided with an auxiliary sample air inlet and an auxiliary sample air outlet, and the lower part of the auxiliary detection detector is provided with an auxiliary detection air inlet and an auxiliary detection air outlet; in the device, the main detection detector gas circuit comprises a main detection gas pump and a control solenoid valve I and a control solenoid valve II, and the auxiliary detection detector gas circuit comprises an auxiliary detection gas pump and a control solenoid valve III and a control solenoid valve IV.
The double-channel detector comprises a main detection detector and an auxiliary detection detector, wherein the main detection detector comprises a main scintillation chamber and a main photoelectric converter, the auxiliary detection detector comprises an auxiliary scintillation chamber and an auxiliary photoelectric converter, zinc sulfide crystals are coated on the inner wall of the scintillation chamber, the scintillation chamber is fixedly arranged on the outer side of a right side plate of a shell of the device, the photoelectric converter faces the scintillation chamber and is fixedly arranged on the inner side of the right side plate of the shell of the device, three wiring ports at the tail part of the photoelectric converter are connected with a counting control plate in the device, the counting measurement method of the device is that the zinc sulfide crystals on the inner wall of the scintillation chamber are excited by radon gas and α particles generated in the daughter decay process in the main scintillation chamber and the auxiliary scintillation chamber, photons are converted into electrons through the main photoelectric converter and the auxiliary photoelectric converter, voltage signals are output after multiplication, the voltage signals are transmitted to the counting control plate of the device through a wiring port b of a base of the photoelectric converter to be counted after being screened, the counting control plate of the device provides working high voltage for the photoelectric converter through a wiring port a.
The device for automatically measuring water radon can be used for measuring the radon concentration in water of a plurality of samples for which the measuring method and steps are designed autonomously.
The device for automatically measuring water radon mainly comprises a water sample diffusion bottle, a gas condensation ball and a test tube bracket, and can realize sampling measurement of air radon and soil radon.
The utility model relates to a measuring method and device to the appointed water radon measurement technique of earthquake row's mark, effectively solved the loaded down with trivial details problem of operating procedure, eliminated the source of human operation error, saved the step of manual calculation result, improved staff's work efficiency.
The utility model has the advantages that: the device has the advantages of automatic measurement, digital display, no need of training for operators, simple structure, accurate calculation result and suitability for the field of observation of underground fluid radon before earthquake.
Drawings
FIG. 1 is a front right view of a dual-channel automatic radon measuring device;
FIG. 2 is a front left view of a dual-channel automatic radon measuring device;
FIG. 3 is a schematic diagram of a main detector of the two-channel automatic radon measuring device;
FIG. 4 is a gas circuit connection diagram of a dual-channel automatic water radon measuring device;
fig. 5 shows the method and the device of the utility model for measuring the radon observation data of the earthquake precursor water.
Detailed Description
The following describes the specific embodiment of the dual-channel automatic water radon measuring device provided by the present invention in further detail.
A dual-channel automatic water radon measuring device is characterized in that a shell 1 of the device is of a table structure with an inclined front face, hand buckle groove type handles are arranged on two sides of the shell, and a dual-channel detector is arranged on the right side of the shell. A touch screen 3 is embedded on a front inclined plate of the device shell 1, and a start key 4 is embedded on a front bottom decorative plate. Detachable test tube holder 7 is installed in device shell 1 left side, and in the test tube hole in test tube holder 7 should be inserted to water sample diffusion bottle 5, its top gas port is connected with gaseous condensation ball 6. The position of the anti-suck-back capillary inside the gas condensation ball 6 is upward, a top gas port of the gas condensation ball is connected with a main sample gas inlet 9-1 through a hose 8, a gas outlet at the upper end side of the water sample diffusion bottle 5 is connected with a main sample gas outlet 9-2 through the hose 8, and two quick gas ports at the top end of the main detection detector 2-1 are respectively connected with a main detection gas inlet 9-3 and a main detection gas port 9-4. Correspondingly, the upper part of the auxiliary detection detector 2-2 is provided with an auxiliary sample air inlet 10-1 and an auxiliary sample air outlet 10-2, and the lower part is provided with an auxiliary detection air inlet 10-3 and an auxiliary detection air port 10-4. In the device, the main detection detector gas circuit comprises a main air detection pump 11-1, a control solenoid valve I12-1 and a control solenoid valve II 12-2, and the auxiliary detection detector gas circuit comprises an auxiliary air detection pump 11-2, a control solenoid valve III 12-3 and a control solenoid valve IV 12-4.
The double-channel detector comprises a main detector 2-1 and an auxiliary detector 2-2, wherein the main detector 2-1 comprises a main scintillation chamber 2-1-1 and a main photometric electrical converter 2-1-2, the auxiliary detector 2-2 comprises an auxiliary scintillation chamber 2-2-1 and an auxiliary photometric electrical converter 2-2-2, zinc sulfide crystals are coated on the inner wall of the scintillation chamber, the scintillation chamber is fixedly arranged on the outer side of the right side plate of a device shell 1, the photoelectric converter faces the scintillation chamber and is fixedly arranged on the inner side of the right side plate of the device shell 1, three wiring ports at the tail part of the photoelectric converter are connected with a counting control board inside the device, the counting measurement method of the device is that radon gas in the main scintillation chamber 2-1-1 and the auxiliary scintillation chamber 2-2-1 and α particles generated in the decay process of daughter enable the zinc sulfide crystals on the inner wall of the scintillation chamber to be excited and generate photons, the photons are converted into an electronic control board after being amplified through the main photometric electrical converter 2-1-1 and the auxiliary photometric electrical converter 2-2-2-2, the voltage signal is transmitted to a high-voltage control board through a wiring port of the photoelectric converter, and the wiring port of the photoelectric converter is provided for recording a high voltage signal through a counting device.
A dual-channel automatic water radon measuring device can also be used for measuring the radon concentration in water of a plurality of samples in an autonomous design measuring method and steps. In addition, the double-channel scintillation chamber type radon measuring instrument formed by the main parts of the device after the water sample diffusion bottle 5, the gas condensation ball 6 and the test tube support 7 are removed can realize air radon sampling measurement and soil radon sampling measurement.
The utility model provides a binary channels formula automatic measure water radon device, its automatic measure's gas circuit connection principle is shown as figure 4, is the inside gas circuit of device and connects in the broken line frame, and the broken line frame is outer to be the outside gas circuit of device and to connect, and the arrow point direction is the gas flow direction when bubbling.
The external gas circuit of the device is connected: the gas condensation ball 6 is connected to the top gas port of the water sample diffusion bottle 5 by using a hose 8, so that the structure of the inverted hook tubule inside the gas condensation ball 6 is ensured to be upward, and the structure is shown in reference to fig. 1. The top end gas port of the gas condensation ball 6 is connected with a main sample gas inlet 9-1, the side gas port at the upper part of the water sample diffusion bottle 5 is connected with a main sample gas outlet 9-2, and 2 quick connectors on the main measurement scintillation chamber 2-1-1 are respectively connected with a main measurement gas inlet 9-3 and a main measurement gas port 9-4. Similarly, the measurement gas path connection method of the auxiliary scintillation chamber 2-2-1 can refer to the main detector gas path.
The internal gas circuit of the device is connected: the main sample air inlet 9-1 is connected with the main air measuring pump 11-1, the main air measuring pump 11-1 is connected with the air inlet of the control electromagnetic valve I12-1, the air outlet of the control electromagnetic valve I12-1 is connected with the main air measuring port 9-4, the air inlet of the control electromagnetic valve II 12-2 is connected with the main air measuring port 9-3, and the air outlet of the control electromagnetic valve II 12-2 is connected with the main sample air outlet 9-2. Similarly, the connection method of the auxiliary air measurement pump 11-2, the control electromagnetic valve three 12-3 and the control electromagnetic valve four 12-4 in the device can refer to the main air measurement path.
In the bubbling sampling flow during automatic measurement, the air pump and the electromagnetic valve are simultaneously opened and closed, and the gas flow direction of the device is described as follows: the water sample diffusion bottle 5-1 → the gas condensation ball 6-1 → the main air measurement pump 11-1 → the first control electromagnetic valve 12-1 → the main scintillation chamber 2-1-1 → the second control electromagnetic valve 12-2 → the water sample diffusion bottle 5-1; the water sample diffusion bottle 5-2 → the gas condensation ball 6-2 → the auxiliary air pump 11-2 → the control electromagnetic valve four 12-4 → the auxiliary scintillation chamber 2-2-1 → the control electromagnetic valve three 12-3 → the water sample diffusion bottle 5-2.
In the field of radon observation of underground fluid water before an earthquake, seismologists take at least 2 water samples back from a monitoring water point by using a measuring device and then transfer each water sample into a corresponding water sample diffusion bottle 5. After the gas circuit connection is automatically measured, earthquake personnel input the measurement starting time and the water sample placing time, and then click a starting button. The device starts measurement preparation countdown immediately, and enters a background radon concentration measurement stage of the main detector and the auxiliary detector after the countdown is finished, and the measurement time is 10 min. And then, in a bubbling sampling stage, synchronously opening an air pump and an electromagnetic valve, and respectively carrying out circulation and uniform bubbling of the main detector and the auxiliary detector for measuring the air path, wherein the flow rate of the air pump is 1.0L/min, and the bubbling is 11 min. And after bubbling is finished, synchronously closing the air pump and the electromagnetic valve, sealing the radon gas sample in a scintillation chamber of the detector, and standing for 60min (including bubbling time of 11 min). And after standing is finished, automatically starting measurement of radon concentration accumulated in the main detector and the auxiliary detector, and counting for 10 min. After the measurement is finished, the radon concentration of the main water sample and the assistant water sample and the deviation of the main sample and the assistant water sample are automatically displayed.
After the operator of the device is familiar with the functions of the device and the water radon measurement principle, the operator can design a measurement scheme by himself to carry out experimental measurement, and the measurement result is calculated by himself according to the measurement count. In addition, the scintillation chamber sampler in the detector of the device can be detached, so that the radon/soil radon measurement can be conveniently sampled on site and then brought back to the laboratory, and the sample analysis speed can be accelerated by simultaneously measuring through the main detector and the auxiliary detector.
Use the utility model discloses, a binary channels formula automatic measure water radon device carries out the seismic precursor groundwater fluid radon observation of 6 days in succession (measure 1 time in same period every day) in certain seismograph station. As shown in FIG. 5, the radon concentration of the main sample and the sub-sample is kept stable basically and has average values of 102.45Bq/L and 100.38Bq/L respectively. According to the requirement of the technical Specification of earthquake hydrology and Earth, the relative deviation range of the main sample measurement and the auxiliary sample measurement is not more than +/-8% when the water radon concentration is 18.5-111 Bq/L, the method and the device of the utility model are used for the measuring result of the earthquake water radon to meet the requirement of the Specification.
The present invention has been described in detail with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. The prior art can be adopted for the content which is not described in detail in the present invention.
Claims (4)
1. The utility model provides a binary channels formula automatic measure water radon device which characterized in that: the two sides of the device are provided with hand buckle type handles, and the right side of the device is provided with a dual-channel detector; a touch screen (3) is embedded on a front inclined plate of the device shell (1), and a start key (4) is embedded on a front bottom decorative plate; a test tube bracket (7) is arranged on the left side of the device shell (1), a water sample diffusion bottle (5) is inserted into a test tube hole in the test tube bracket (7), and a gas port at the top of the water sample diffusion bottle is connected with a gas condensation ball (6); the position of an anti-suck-back capillary tube in the gas condensation ball (6) is upward, a gas port at the top end of the gas condensation ball is connected with a main sample gas inlet (9-1) through a hose (8), a gas outlet at the upper end side of a water sample diffusion bottle (5) is connected with a main sample gas outlet (9-2) through the hose (8), and two quick gas ports at the top end of a main detection detector (2-1) are respectively connected with a main detection gas inlet (9-3) and a main detection gas outlet (9-4); correspondingly, the upper part of the auxiliary detection detector (2-2) is provided with an auxiliary sample air inlet (10-1) and an auxiliary sample air outlet (10-2), and the lower part is provided with an auxiliary detection air inlet (10-3) and an auxiliary detection air port (10-4); in the device, a main detection detector gas circuit comprises a main air detection pump (11-1), a control solenoid valve I (12-1) and a control solenoid valve II (12-2), and an auxiliary detection detector gas circuit comprises an auxiliary air detection pump (11-2), a control solenoid valve III (12-3) and a control solenoid valve IV (12-4).
2. The device for automatically measuring radon in water according to claim 1, wherein the dual-channel detector comprises a main detector (2-1) and a secondary detector (2-2), the main detector (2-1) comprises a main scintillation chamber (2-1-1) and a main photoelectric converter (2-1-2), the secondary detector (2-2) comprises a secondary scintillation chamber (2-2-1) and a secondary photoelectric converter (2-2-2), the inner wall of the scintillation chamber is coated with zinc sulfide crystal, the scintillation chamber is fixedly arranged outside the right side plate of the device shell (1), the photoelectric converter is opposite to the scintillation chamber and is fixedly arranged inside the right side plate of the device shell (1), three wiring ports at the tail part of the photoelectric converter are connected with a counting control board inside the device, the counting and measuring method of the device is that the zinc sulfide crystal in the main scintillation chamber (2-1) and the radon gas and particles generated in the decay process of the secondary chamber (2-2-1) are converted into photon crystal and generate photon counting signals through a photon multiplication circuit board α generated by the photoelectric converter (2-2), the photoelectric converter, the counting circuit board generates and the photon counting signals after the photon multiplication signals are amplified and are output to a high-voltage recording device through the photoelectric converter and the photoelectric converter (2-2-2).
3. The dual-channel automatic water radon measuring device as claimed in claim 1, wherein the device housing (1) is a table structure with a front inclined, and two sides are provided with a hand-buckle-type handle.
4. The dual-channel automatic water radon measuring device according to claim 1, wherein the test tube holder (7) is detachable.
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| CN201921268910.2U CN210376706U (en) | 2019-08-07 | 2019-08-07 | Double-channel type automatic water radon measuring device |
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| CN201921268910.2U CN210376706U (en) | 2019-08-07 | 2019-08-07 | Double-channel type automatic water radon measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441808A (en) * | 2019-08-07 | 2019-11-12 | 中广核贝谷科技有限公司 | A kind of method and device of Dual-channel type automatic measurement water radon |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441808A (en) * | 2019-08-07 | 2019-11-12 | 中广核贝谷科技有限公司 | A kind of method and device of Dual-channel type automatic measurement water radon |
| CN110441808B (en) * | 2019-08-07 | 2024-03-01 | 中广核贝谷科技有限公司 | Dual-channel automatic water radon measurement method and device |
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