CN220120998U - Radioactive gas detection device - Google Patents
Radioactive gas detection device Download PDFInfo
- Publication number
- CN220120998U CN220120998U CN202321647163.XU CN202321647163U CN220120998U CN 220120998 U CN220120998 U CN 220120998U CN 202321647163 U CN202321647163 U CN 202321647163U CN 220120998 U CN220120998 U CN 220120998U
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- radioactive gas
- cover
- gas detection
- radiation detector
- preamplifier
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- 230000002285 radioactive effect Effects 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 230000005855 radiation Effects 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 31
- 239000007788 liquid Substances 0.000 description 9
- 238000005259 measurement Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Measurement Of Radiation (AREA)
Abstract
The disclosure relates to a radioactive gas detection device, and relates to the technical field of gas detection devices. The device comprises a multi-channel analyzer, an oscilloscope, a vacuum pump, a box body with a storage cavity and a sealing cover for sealing an opening of the box body, wherein a preamplifier and a nuclear radiation detector for detecting radioactive gas are respectively arranged on two sides of the sealing cover, and the nuclear radiation detector is respectively and electrically connected with the multi-channel analyzer and the oscilloscope through the preamplifier; the sealing cover is also provided with an air inlet and an air outlet communicated with the vacuum pump, the air inlet is provided with a first valve, and the air outlet is provided with a second valve. After the box body is vacuumized by the vacuum pump, sample gas is filled in the detection device, radioactive gas is detected by the nuclear radiation detector fixed on the sealing cover, and finally related data of the radioactive gas are displayed on the multi-channel analyzer and the oscilloscope.
Description
Technical Field
The disclosure relates to the technical field of gas detection devices, and in particular relates to a radioactive gas detection device.
Background
With the gradual increase of the quantity of nuclear power stations at home and abroad, abnormal release or accidents occur in nuclear facilities, radioactive gas (mainly inert gas) can leak into the atmosphere, so that new environmental monitoring problems are brought, and as the radioactive gas is diffused and diluted in the atmosphere and continuously decays, the activity of the radioactive gas in the atmosphere is very low, so that the measurement of the activity of the radioactive gas is carried out, the measurement and detection sensitivity of the activity of the gas nuclide is improved, precious data can be provided for nuclear accident early warning, emergency and evaluation, and positive effects on protecting the public and environmental radiation safety are played.
The current radioactive gas measurement method mainly comprises the steps of melting a sample gas containing radioactive gas into liquid and then measuring the sample gas by using a liquid scintillator, wherein the measurement mode not only makes the gas-liquid fusion difficult, but also improves the measurement difficulty and reduces the data accuracy, and the measurement process is complex; and also brings great inconvenience to the later treatment of the waste liquid. In view of this, the inventors propose a radioactive gas detection apparatus.
Disclosure of Invention
The purpose of this disclosure is to provide a radioactive gas detection device, and this detection device can directly detect radioactive gas, does not need artificial complicacy operation, lets nuclear radiation detector gather signal change's simple effective, has avoided later stage waste liquid treatment.
In order to achieve the above object, the present disclosure provides a radioactive gas detection apparatus, which includes a multi-channel analyzer, an oscilloscope, a vacuum pump, a box body having a storage chamber, and a cover sealing an opening of the box body, wherein both sides of the cover are respectively provided with a preamplifier and a nuclear radiation detector for detecting radioactive gas, and the nuclear radiation detector is respectively electrically connected with the multi-channel analyzer and the oscilloscope through the preamplifier; the sealing cover is also provided with an air inlet and an air outlet communicated with the vacuum pump, the air inlet is provided with a first valve, and the air outlet is provided with a second valve.
Optionally, the nuclear radiation detector further comprises a conductive pin, wherein the conductive pin is fixed on the sealing cover, one end of the conductive pin is electrically connected with the nuclear radiation detector, and the other end of the conductive pin is electrically connected with the preamplifier.
Optionally, the preamplifier includes a circuit board and a protective case made of stainless steel, and the circuit board is mounted in the protective case and electrically connected with the conductive pins.
Optionally, the sealing device further comprises a sealing ring arranged between the sealing cover and the box body.
Optionally, the cover is connected with the box body through a screw.
Optionally, the cover and the case are both made of stainless steel.
By the technical scheme, the opening of the box body is sealed by the sealing cover, so that the storage cavity forms a closed cavity, and the closed cavity is used for storing sample gas. When the gas is detected, the first valve is closed, the second valve is opened, and the air of the closed cavity is vacuumized by the vacuum pump; and then opening the first valve, closing the second valve, introducing sample gas into the closed cavity for detection, amplifying the detected radioactivity intensity and the detected size signal of the sample gas by the nuclear radiation detector through a preamplifier signal, and transmitting the amplified signal to a multi-channel analyzer and an oscilloscope for processing and analysis. Compared with the existing measuring method, the radioactive gas can be directly detected by using the detecting device without melting the radioactive gas in liquid, the detection is more convenient and rapid, and the later waste liquid treatment is avoided.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a schematic cross-sectional view of one embodiment of the present disclosure;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a top view of one embodiment of the present disclosure.
Description of the reference numerals
100. A case body; 110. a cover; 101. an air inlet; 102. an exhaust port; 120. a pre-amplifier; 121. a circuit board; 122. a protective shell; 130. a nuclear radiation detector; 140. a multi-channel analyzer; 150. an oscilloscope; 160. a vacuum pump; 170. conductive pins.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In the present disclosure, unless otherwise indicated, terms of orientation such as "upper, lower, left, right" are generally defined with respect to the orientation of the drawings, and "inner and outer" refer to the inner and outer of the relevant parts. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present disclosure, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.
The present disclosure provides a radioactive gas detection apparatus, please refer to fig. 1-3, which includes a multi-channel analyzer 140, an oscilloscope 150, a vacuum pump 160, a box body 100 having a storage chamber, and a cover 110 sealing an opening of the box body 100, wherein both sides of the cover 110 are respectively provided with a preamplifier 120 and a nuclear radiation detector 130 for detecting radioactive gas, and the nuclear radiation detector 130 is respectively electrically connected with the multi-channel analyzer 140 and the oscilloscope 150 through the preamplifier 120; the sealing cover 110 is also provided with an air inlet 101 and an air outlet 102 communicated with the vacuum pump 160, the air inlet 101 is provided with a first valve, and the air outlet 102 is provided with a second valve.
In the above-mentioned technical solution, the multi-channel analyzer 140 is configured to receive the analog output signal from the nuclear radiation detector, and through analog-digital conversion, information such as energy, intensity, half-life, etc. of the nuclear radiation to be measured is given in an intuitive manner. The case 100 and the cover 110 may be made of hard plastic, so as to prevent the vacuum pump 160 from deforming the case 100 and the cover 110 during the vacuum pumping process. To ensure that the cover 110 completely seals the cartridge 100, the cover 110 may be threaded over the opening of the cartridge 100.
In practice, the cartridge 100 is sealed at its opening with a cover 110 so that the storage chamber constitutes a closed chamber for storing the sample gas. When detecting the gas, the first valve is closed, the second valve is opened, and the air in the closed chamber is vacuumized by the vacuum pump 160; and then the second valve is closed, the first valve is opened, the sample gas is introduced into the closed cavity for being detected, and the nuclear radiation detector 130 amplifies the detected radioactivity intensity and the detected magnitude signal of the sample gas through the preamplifier 120 and then transmits the amplified signal to the multi-channel analyzer 140 and the oscilloscope 150 for processing and analysis. Compared with the existing measuring method, the radioactive gas can be directly detected by using the detecting device without melting the radioactive gas in liquid, the detection is more convenient and rapid, and the later waste liquid treatment is avoided.
Optionally, in other embodiments of the present disclosure, the cover 110 and the case 100 may be made of stainless steel, and a sealing ring may be installed between the cover 110 and the case 100 in order to ensure tightness between the cover 110 and the case 100.
Optionally, in other embodiments of the present disclosure, the cover 110 and the case 100 may be connected by screws, so as to facilitate replacement of the nuclear radiation detector mounted on the cover 110 after disassembly.
Optionally, referring to fig. 1-3, in one embodiment of the present disclosure, the device further includes a conductive pin 170, where the conductive pin 170 is fixed on the cover 110, one end of the conductive pin 170 is electrically connected to the nuclear radiation detector 130, and the other end of the conductive pin 170 is electrically connected to the preamplifier 120.
In the above technical solution, the conductive pin 170 is composed of a hollow connecting sleeve and a copper pin filled in the connecting sleeve, the hollow connecting sleeve is screwed on the cover 110, one end of the conductive pin 170 is electrically connected with the nuclear radiation detector 130, and the other end of the conductive pin 170 is electrically connected with the preamplifier 120, so that the replacement of different types of nuclear radiation detectors and preamplifiers 120 is facilitated.
Alternatively, referring to fig. 3, in one embodiment of the present disclosure, the preamplifier 120 includes a circuit board 121 and a protective case 122 made of stainless steel, the circuit board 121 is installed in the protective case 122 and electrically connected to the conductive pins 170, and the protective case 122 made of stainless steel can protect and shield the circuit board 121.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (6)
1. The radioactive gas detection device is characterized by comprising a multi-channel analyzer, an oscilloscope, a vacuum pump, a box body with a storage cavity and a sealing cover for sealing an opening of the box body, wherein a preamplifier and a nuclear radiation detector for detecting radioactive gas are respectively arranged on two sides of the sealing cover, and the nuclear radiation detector is respectively electrically connected with the multi-channel analyzer and the oscilloscope through the preamplifier; the sealing cover is also provided with an air inlet and an air outlet communicated with the vacuum pump, the air inlet is provided with a first valve, and the air outlet is provided with a second valve.
2. The radioactive gas detection apparatus of claim 1, further comprising a conductive pin secured to the cover, one end of the conductive pin being electrically connected to the nuclear radiation detector and the other end of the conductive pin being electrically connected to the preamplifier.
3. The radioactive gas detection apparatus of claim 2, wherein the preamplifier includes a circuit board and a protective case made of stainless steel, the circuit board being mounted within the protective case and electrically connected to the conductive pins.
4. The radioactive gas detection apparatus of claim 1, further comprising a seal ring disposed between the cover and the cartridge.
5. The radioactive gas detection apparatus of claim 1, wherein the cover is screwed to the cartridge.
6. The radioactive gas detection apparatus of claim 1, wherein the cover and the cartridge are each made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321647163.XU CN220120998U (en) | 2023-06-27 | 2023-06-27 | Radioactive gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321647163.XU CN220120998U (en) | 2023-06-27 | 2023-06-27 | Radioactive gas detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220120998U true CN220120998U (en) | 2023-12-01 |
Family
ID=88915991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321647163.XU Active CN220120998U (en) | 2023-06-27 | 2023-06-27 | Radioactive gas detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220120998U (en) |
-
2023
- 2023-06-27 CN CN202321647163.XU patent/CN220120998U/en active Active
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