CN206609978U - One kind is used for the radiometric detector of fluid - Google Patents
One kind is used for the radiometric detector of fluid Download PDFInfo
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- CN206609978U CN206609978U CN201720216448.6U CN201720216448U CN206609978U CN 206609978 U CN206609978 U CN 206609978U CN 201720216448 U CN201720216448 U CN 201720216448U CN 206609978 U CN206609978 U CN 206609978U
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- detector
- scintillator
- photomultiplier
- fluid
- pipeline
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Abstract
The utility model is related to radiological measuring technical field, there is provided a kind of for the radiometric detector of fluid, radioactive intensity for detecting fluid in pipeline and sealing container, detector includes detector housing, photomultiplier and signal processing circuit, the scintillator for γ/beta-ray detection.Detector housing is metallic cylinder, cylindrical wall is used to detector being arranged on pipeline or sealing container provided with structures such as flange or screw threads, bottom of cylinder installs scintillator as enclosure bottom, and barrel top perforate, cable needed for making photomultiplier and signal processing circuit is drawn from barrel top；Photomultiplier and signal processing circuit are arranged in detector housing, and photomultiplier detection end face is connected with scintillator direct-coupling or connected by optical glass；Detector scintillator is placed in pipeline or container, allows radioactivity prospecting face to be exposed in fluid.The radioactivity prospecting face that the utility model solves existing detector is placed at outside pipeline or chamber wall, the low shortcoming of its detection sensitivity.
Description
Technical field
The utility model is related to radiological measuring technology, and in particular to one kind is used for the radiometric detector of fluid,
Radioactive intensity for detecting fluid in pipeline and sealing container.
Background technology
Waste gas, the waste liquid of the discharges such as nuclear power plant, coal-fired electric plants, chemical plant, steel mill contain radioactive substance, according to country
It is both needed to carry out on-line continuous radiological measuring before the environmental radiation regulation of protection of Environmental Protection Department issue, waste gas, discharging of waste liquid；State
Interior existing waste gas, waste liquid radiological measuring using the method that radioactive detector is installed outside sampling Detection or discharge tube, are taken out
The sample detector response time is slow, it is impossible to real time on-line monitoring, and is detected outside pipeline, because the shielding of steel pipe wall causes inspection
Survey device detection efficient low.
In order to meet the regulation of environmental radiation protection, discharge waste gas, the radiological measuring of waste liquid must be on-line continuous prisons
Survey, and radiological measuring lower limit requires low, then requires that detector detection efficient will be improved；Therefore, the environment spoke of waste gas, waste liquid
Penetrate and protect needs are a kind of can on-line continuous progress radioactivity monitoring and the high detector of detection efficient.
The content of the invention
The utility model is for the discharge waste gas such as nuclear power plant, coal-fired electric plants, chemical plant, steel mill, waste liquid radiological measuring
Particular/special requirement, for solve there is presently no it is a kind of can on-line continuous carry out radioactivity monitoring and the high detector of detection efficient
Problem, it is proposed that solution.
In order to achieve the above object, the utility model is realized by following technical solution：
Detector includes detector housing, photomultiplier and signal processing circuit, the flicker for γ/beta-ray detection
Body；
The detector housing is metallic cylinder, and cylindrical wall is used to install detector provided with structures such as flange or screw threads
Onto pipeline or sealing container, bottom of cylinder installs scintillator as enclosure bottom, barrel top perforate, make photomultiplier and
Base top contact of the cable needed for signal processing circuit from cylinder；
The photomultiplier and signal processing circuit are arranged in detector housing, and photomultiplier detection end face is with dodging
Bright body direct-coupling connection is connected by optical glass；
The detector scintillator is placed in pipeline or container, allows radioactivity prospecting face to be exposed in fluid.
The radioactivity prospecting face that the utility model solves existing detector is placed at outside pipeline or chamber wall, and it detects spirit
The low shortcoming of sensitivity.
Brief description of the drawings
Fig. 1 is detector structure and scheme of installation in a kind of embodiment of the present utility model.
Embodiment
Illustrate implementation of the present utility model below by way of particular embodiment, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages of the present utility model and effect easily.The utility model can also be by addition not
Same embodiment is embodied or practiced, and the various details in this specification can also be based on different viewpoints and application,
Various modifications or alterations are carried out under without departing from spirit of the present utility model.
Refer to Fig. 1.It should be noted that the diagram provided in the present embodiment only illustrates that this practicality is new in a schematic way
The basic conception of type, only display is with relevant component in the utility model rather than according to package count during actual implement in illustrating then
Mesh, shape and size are drawn, and kenel, quantity and the ratio of each component can be a kind of random change during its actual implementation, and its
Assembly layout kenel may also be increasingly complex.
Below in conjunction with the accompanying drawings and a kind of embodiment therein the utility model is described in further detail.
The utility model is used for the radiometric detector of fluid to be a kind of, it is adaptable to detect pipeline（1）Or container（1）
Middle fluid, includes the radioactive intensity of gas, liquid etc..
Detector includes detector housing（4）, photomultiplier and signal processing circuit（3）, for γ/beta-ray detection
Scintillator（8）, wherein scintillator can need to install additional the optical glass of high transmission rate according to structure, and detection β rays can be with slim
Plastic scintillant, detector gamma-rays can use thicker plastic scintillant, if necessary to carry out nuclide identification, can use sodium iodide scintillation
Body or the high scintillator of other energy resolutions；
Detector housing（4）For metallic cylinder, the preferred stainless steel of cylinder material, cylinder is provided with flange（7）, outside detector
Shell（4）Bottom is installed by scintillator（8）As detector housing bottom surface, by scintillator（8）Test surface expose, directly connect with fluid
Touch, in the non-photomultiplier coupling surface spraying reflective material of scintillator, ray can be allow to pass through in the light excited in scintillator
Photomultiplier is reflected into, so as to improve detection efficient；Surface detectors shell（4）Top drilling, can be by photomultiplier
And signal processing circuit（3）Required cable（5）Draw；
Photomultiplier and signal processing circuit（3）Installed in detector housing（4）It is interior, photomultiplier detection end face with
Scintillator（8）Or the optical glass coupling of scintillator is installed；
Detector is arranged on outer wall perforate（2）And the pipeline provided with flange（1）Or sealing container（1）On, detector radiation
Property test surface is placed in pipeline or container；
Because detector scintillator is placed in pipeline or container, its radiological measuring face is directly exposed in fluid, it is to avoid
Shielding due to pipeline or chamber wall to radioactive ray, this improves the detectivity of the detector；
Detector can connect radiological measuring it is general connect data processing and control system（6）, realize radioactivity superthreshold report
It is alert, discharge waste gas, the radioactivity on-line continuous monitoring of waste liquid are realized, its detection efficient is high, meets the requirement of environmental radiation protection.
Finally it should be noted that：Examples detailed above only illustrative principle of the present utility model and its effect, not for
Limit the utility model.Any person skilled in the art all can be without prejudice under spirit and scope of the present utility model, to upper
State embodiment and carry out modifications and changes.Therefore, such as those of ordinary skill in the art new without departing from this practicality
Spirit and all equivalent modifications completed under technological thought or change disclosed in type, should be wanted by right of the present utility model
Ask and covered.
Claims (2)
1. one kind is used for the radiometric detector of fluid, for detecting that the radioactivity of fluid in pipeline and sealing container is strong
Degree, it is characterised in that detector includes detector housing, photomultiplier and signal processing circuit, for γ/beta-ray detection
Scintillator；Detector housing is metallic cylinder, and cylindrical wall is used to detector being installed to pipe provided with structures such as flange or screw threads
On road or sealing container, bottom of cylinder installs scintillator as enclosure bottom, and barrel top perforate makes photomultiplier and signal
Base top contact of the cable needed for process circuit from cylinder；Photomultiplier and signal processing circuit are arranged in detector housing,
Photomultiplier detection end face is connected with scintillator direct-coupling or connected by optical glass.
2. a kind of as claimed in claim 1 be used for the radiometric detector of fluid, it is characterised in that detector scintillator is put
It is exposed in pipeline or container, allowing radioactivity prospecting face in fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720216448.6U CN206609978U (en) | 2017-03-07 | 2017-03-07 | One kind is used for the radiometric detector of fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720216448.6U CN206609978U (en) | 2017-03-07 | 2017-03-07 | One kind is used for the radiometric detector of fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206609978U true CN206609978U (en) | 2017-11-03 |
Family
ID=60166506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720216448.6U Active CN206609978U (en) | 2017-03-07 | 2017-03-07 | One kind is used for the radiometric detector of fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206609978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866188A (en) * | 2021-08-25 | 2021-12-31 | 中国辐射防护研究院 | Device for measuring thermal neutron transmittance of shielding material |
-
2017
- 2017-03-07 CN CN201720216448.6U patent/CN206609978U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866188A (en) * | 2021-08-25 | 2021-12-31 | 中国辐射防护研究院 | Device for measuring thermal neutron transmittance of shielding material |
| CN113866188B (en) * | 2021-08-25 | 2024-04-12 | 中国辐射防护研究院 | Thermal neutron transmissivity measuring device for shielding material |
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