CN206649170U - One kind is used for the radiometric detector of fluid - Google Patents
One kind is used for the radiometric detector of fluid Download PDFInfo
- Publication number
- CN206649170U CN206649170U CN201720221076.6U CN201720221076U CN206649170U CN 206649170 U CN206649170 U CN 206649170U CN 201720221076 U CN201720221076 U CN 201720221076U CN 206649170 U CN206649170 U CN 206649170U
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- Prior art keywords
- detector
- pipeline
- fluid
- photomultiplier
- scintillator
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- 239000012530 fluid Substances 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 12
- 230000005251 gamma ray Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000002285 radioactive effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 239000012611 container material Substances 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 7
- 239000002912 waste gas Substances 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
Landscapes
- Measurement Of Radiation (AREA)
Abstract
It the utility model is related to radiological measuring technical field, there is provided one kind is used for the radiometric detector of fluid, for detecting the gamma activity of pipeline or fluid in container material；Detector includes detector housing, photomultiplier and signal processing circuit, the scintillator for gamma-ray detection；Detector housing is metallic cylinder, is installed in pipeline or sealing container, the built-in photomultiplier of cylinder and signal processing circuit, barrel top perforate, can draw cable needed for photomultiplier and signal processing circuit；Scintillator is column, and scintillator upper surface is of coupled connections with photomultiplier transit detection end face；Detector is arranged on the pipeline or chamber wall of outer wall perforate, allows radioactivity prospecting face to be exposed in fluid.The effective test surface of the utility model detector is placed in pipeline or container, improves detectivity, is greatly improved the efficiency of the gamma activity detection of pipeline or fluid in container material, is reduced detector detection limit.
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,
For detecting the radioactive intensity of 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
The environmental radiation regulation of protection of Environmental Protection Department issue, it is both needed to before waste gas, discharging of waste liquid carry out on-line continuous radiological measuring；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 detected outside pipeline then because the shielding of steel pipe wall causes to examine
It is low to survey device detection efficient.
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 improve；Therefore, the environment spoke of waste gas, waste liquid
Penetrate protection need it is a kind of can on-line continuous carry out radioactivity monitoring and the high detector of detection efficient.
The content of the invention
The utility model discharges waste gas, waste liquid radiological measuring for nuclear power plant, coal-fired electric plants, chemical plant, steel mill etc.
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 proposes solution, need to particularly detect the environment of low-activity gamma activity.
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 scintillator for gamma-ray detection；
The detector housing is metallic cylinder, and cylindrical wall is provided with the structures such as flange or screw thread and is used to install detector
Onto pipeline or sealing container, the built-in photomultiplier of cylinder and signal processing circuit, barrel top perforate can be by photomultiplier transit
Cable is drawn needed for pipe and signal processing circuit；
The scintillator is column, and its length maximum can be pipeline or container intracavity size, can be according to detection limit demand
Length is adjusted, scintillator upper surface is of coupled connections with photomultiplier transit detection end face；
The detector is arranged on the pipeline or chamber wall of outer wall perforate, and detector scintillator is placed in pipeline or container,
Radioactivity prospecting face is allowed to be exposed in fluid.
The effective test surface of the utility model detector is placed in pipeline or container, improve detectivity, avoid pipeline or
Chamber wall influences detection efficient to gamma-ray shielding, and the gamma-rays that can also reduce outside pipeline or container is done to the background of measurement
Disturb, while use column plastic scintillant γ detectors, detection effective volume is big, is greatly improved pipeline or fluid in container thing
The efficiency of the gamma activity detection of matter, reduces detector detection limit.
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 and effect of the present utility model 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, the component relevant with the utility model is only shown in illustrating then rather than according to package count during actual implement
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 for one kind, for detecting pipeline（1）The γ of middle fluid
Radioactive intensity.
Detector includes detector housing（3）, photomultiplier and signal processing circuit（2）, for gamma-ray detection
Scintillator（6）, the preferable plastic scintillant of general measure, nuclide identification is such as needed, sodium iodide scintillator or other energy can be used
The scintillator of high resolution；
Detector housing（3）For metallic cylinder, preferably stainless steel, built-in photomultiplier and signal processing circuit
（2）, detector housing（3）Top drilling, can be by photomultiplier and signal processing circuit（2）Required cable（4）Draw；
Scintillator（6）For column, its length is up to pipeline or container intracavity size, can require to adjust according to detection limit
Length, scintillator upper table mirror polish, end coupling is detected with photomultiplier transit, it is anti-in the non-photomultiplier coupling surface spraying of scintillator
Stimulative substance, ray can be allow in the light excited in scintillator by being reflected into photomultiplier, so as to improve detection efficient；
Detector is arranged on the pipeline of outer wall perforate（1）Wall, detector radioactivity prospecting face are placed in pipeline（1）It is interior.
The effective test surface of the utility model detector is placed in pipeline or container, avoids pipeline or chamber wall to gamma-ray
Shield and influence detection efficient, the gamma-rays that can also reduce outside pipeline or container is disturbed the background of measurement, while uses column
Plastic scintillant γ detectors, detection effective volume is big, is greatly improved the gamma activity inspection of pipeline or fluid in container material
The efficiency of survey, reduce detector detection limit.
Detector can connect radiological measuring it is general connect data processing and control system（5）, 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 the radioactive intensity of pipeline or fluid in container, its
It is characterised by that detector includes detector housing, photomultiplier and signal processing circuit, the scintillator for gamma-ray detection；
Detector housing is metallic cylinder, and cylindrical wall is provided with flange or the structure of screw thread is used to detector being installed to pipeline or sealing
On container, the built-in photomultiplier of cylinder and signal processing circuit, barrel top perforate can be by photomultiplier and signal transacting
Cable needed for circuit is drawn；Scintillator is column, and its length is up to pipeline or container intracavity size, can be according to detection limit need
Adjustment length is sought, scintillator upper surface is of coupled connections with photomultiplier transit detection end face.
2. one kind is used for the radiometric detector of fluid as claimed in claim 1, it is characterised in that detector is arranged on outer
The pipeline or chamber wall of wall perforate, detector scintillator are placed in pipeline or container, allow radioactivity prospecting face to be exposed in fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720221076.6U CN206649170U (en) | 2017-03-08 | 2017-03-08 | One kind is used for the radiometric detector of fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720221076.6U CN206649170U (en) | 2017-03-08 | 2017-03-08 | One kind is used for the radiometric detector of fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206649170U true CN206649170U (en) | 2017-11-17 |
Family
ID=60280861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720221076.6U Active CN206649170U (en) | 2017-03-08 | 2017-03-08 | One kind is used for the radiometric detector of fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206649170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308473A (en) * | 2019-08-06 | 2019-10-08 | 苏州瑞派宁科技有限公司 | A kind of radiation detector assembly |
-
2017
- 2017-03-08 CN CN201720221076.6U patent/CN206649170U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308473A (en) * | 2019-08-06 | 2019-10-08 | 苏州瑞派宁科技有限公司 | A kind of radiation detector assembly |
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