CN206649169U - 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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- CN206649169U CN206649169U CN201720220910.XU CN201720220910U CN206649169U CN 206649169 U CN206649169 U CN 206649169U CN 201720220910 U CN201720220910 U CN 201720220910U CN 206649169 U CN206649169 U CN 206649169U
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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 beta activity of pipeline or fluid in container material；Detector includes detector housing, photomultiplier and signal processing circuit, optical glass, the scintillator for beta-ray detection；Detector housing is metallic cylinder, is installed in pipeline or sealing container, the built-in photomultiplier of cylinder and signal processing circuit；Scintillator uses thin plastic scintillator；Detector is arranged on the pipeline or chamber wall of outer wall perforate, and detector scintillator is placed in pipeline or container, 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 avoided pipeline or chamber wall from influenceing detection efficient to Beta-ray shielding, is also reduced the background interference that the gamma-rays outside pipeline or container is measured β.
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 beta activity intensity of pipeline and fluid in container material.
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, is both needed to carry out continuous radiological measuring before waste gas, discharging of waste liquid；The country is existing
There are waste gas, waste liquid radiological measuring using the method for installing radioactive detector outside sampling Detection or discharge tube, sampling inspection
It is slow to survey the device response time, it is impossible to real time on-line monitoring, and detected outside pipeline then because the shielding of steel pipe wall causes detector
Detection efficient is 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 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 β rays and the high inspection of detection efficient
The problem of surveying device proposes 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, optical glass, for beta-ray detection
Scintillator；
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 uses thin plastic scintillator, and in order to increase its intensity, scintillator can be fixed on to one piece with dodging
On the consistent high light-transmissive light guide glass of bright shape, mirror polish on optical glass, coupled with photomultiplier；
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 Beta-ray shielding, and the gamma-rays that can also reduce outside pipeline or container is done to the β backgrounds measured
Disturb.
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）Middle flowing material
Beta activity intensity.
Detector includes detector housing（3）, photomultiplier and signal processing circuit（2）, optical glass（6）, for β
The scintillator of X-ray detection X（7）；
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；
In order to reduce gamma-ray interference, scintillator（7）It is not preferably greater than than thin plastic scintillator, thickness using high β/γ
1mm, in order to increase its intensity, by scintillator（7）It is pasted onto one block of high light-transmissive light guide glass consistent with flicker shape（6）
On, mirror polish on optical glass, being coupled with photomultiplier, there is reflective material scintillator test surface and optical glass side,
Avoid fluorescence caused by scintillator from escaping from, improve detector 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（1）Or in container, pipeline or chamber wall are avoided to β rays
Shielding and influence detection efficient, can also reduce the background interference that the gamma-rays outside pipeline or container measured β.
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, optical glass, for beta-ray detection
Scintillator；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
On pipeline or sealing container, the built-in photomultiplier of cylinder and signal processing circuit, detector housing top drilling can be by photoelectricity
Cable needed for multiplier tube and signal processing circuit is drawn；Scintillator uses thin plastic scintillator, in order to increase its intensity, can incite somebody to action
Scintillator is fixed on one block of high light-transmissive light guide glass consistent with flicker shape, mirror polish on optical glass, with photoelectricity times
Increase pipe coupling.
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 |
|---|---|---|---|
| CN201720220910.XU CN206649169U (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 |
|---|---|---|---|
| CN201720220910.XU CN206649169U (en) | 2017-03-08 | 2017-03-08 | One kind is used for the radiometric detector of fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206649169U true CN206649169U (en) | 2017-11-17 |
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ID=60280958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720220910.XU Active CN206649169U (en) | 2017-03-08 | 2017-03-08 | One kind is used for the radiometric detector of fluid |
Country Status (1)
| Country | Link |
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| CN (1) | CN206649169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655873A (en) * | 2018-12-25 | 2019-04-19 | 武汉海王科技有限公司 | A kind of water body low-activity beta activity intelligent monitor system |
-
2017
- 2017-03-08 CN CN201720220910.XU patent/CN206649169U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655873A (en) * | 2018-12-25 | 2019-04-19 | 武汉海王科技有限公司 | A kind of water body low-activity beta activity intelligent monitor system |
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