CN207396751U - A kind of Low background shields vitriol chamber - Google Patents
A kind of Low background shields vitriol chamber Download PDFInfo
- Publication number
- CN207396751U CN207396751U CN201721112405.XU CN201721112405U CN207396751U CN 207396751 U CN207396751 U CN 207396751U CN 201721112405 U CN201721112405 U CN 201721112405U CN 207396751 U CN207396751 U CN 207396751U
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- screened room
- block
- radioactive source
- low background
- shields
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Abstract
The utility model is related to vitriol chamber shield technology fields, and in particular to a kind of Low background shields vitriol chamber, including screened room, detector is provided in screened room, screened room upper end cover is equipped with head cover, radioactive source calibrating installation is provided on screened room lateral wall；Radioactive source calibrating installation includes housing, and set in the housing block block and radioactive source, block is blocked to be slidably connected with housing, and it blocks block and offers and extend transversely through the first through hole for blocking block, radioactive source face detector, the position of screened room face detector offer the second through hole for extending transversely through screened room side wall.Usually measure in, radioactive source be blocked block shielding isolation, do not influence normally to measure；When needing calibration, block is blocked in movement, it is connected so that blocking the first through hole of block with the second through hole of screened room, detector is enable to detect radioactive source, the data detected by detector judge whether detection system is stablized, so as to the validity of measurement data before judging, the reliability of raising monitoring system.
Description
Technical field
The utility model belongs to vitriol chamber shield technology field, and in particular to a kind of Low background shields vitriol chamber.
Background technology
Radioactive pollution refers to the radioactive level of radioactive substance higher than size selective sampling or more than defined health mark
It is accurate.Radioactive pollutant is mainly various radionuclides, and radioactivity is unrelated with chemical state, and each radionuclide can
Launch the ray of certain energy.
And radioactive pollutant mainly includes natural origin and artificial source's two ways in water body.Wherein natural origin is
Water body is brought by rock, soil and atmospheric interaction, due to radioactive mineral matter and rock leaching and dissolved
Journey, the surface water contain the radioactive elements such as uranium, radium, radon.And artificial radioactivity pollutant is mainly derived from：1. natural ore deposit is opened
The waste water adopted and generated when ore dressing, refinery, radio isotope application；2. in the processing of uranium ore, the chemical treatment of ore,
The ion exchange precipitation method and extraction selectively extract uranium from solution, and the radioactive product of uranium decay is substantially as ore
Waste liquid loss after chemical treatment is entrained with.
Radionuclide in water body can enter human body through a variety of ways, make one to be subject to radiation damage, therefore use
Water body radioactivity monitoring system carries out real time on-line monitoring to water body radioactivity.The detection system bag of water body radioactivity monitoring system
Low background shielding vitriol chamber and high purity germanium detector are included, high purity germanium detector is located at the center of shielding vitriol chamber, and shielding vitriol chamber can shield
Cover influence of the natural radionuclide to radio nuclide monitoring system in water body.But existing detection system is long-term automatic continuous
In measurement, high purity germanium detector may be unstable, and it is invalid data to cause the data measured during this period, influences the monitoring system
The reliability of system.
Utility model content
The purpose of this utility model is to provide a kind of Low backgrounds that can improve water body radioactivity monitoring system reliability
Shield vitriol chamber.
To reach above-mentioned requirements, the technical scheme adopted by the utility model is that：A kind of Low background shielding vitriol chamber is provided, including
Screened room, detector is provided in screened room, and screened room upper end cover is equipped with head cover, radioactive source school is provided on screened room lateral wall
Standard apparatus；Radioactive source calibrating installation include housing and set in the housing block block and radioactive source, block block and housing and slide
Dynamic connection, and block block and offer and extend transversely through the first through hole for blocking block, radioactive source face detector, the detection of screened room face
The position of device offers the second through hole for extending transversely through screened room side wall.
Compared with prior art, the utility model has the following advantages：
(1) usually measure in, first through hole and the second through hole dislocation, radioactive source be blocked block shielding isolation, do not influence
Normal measurement；When needing calibration, then block is blocked in movement so that blocks the first through hole of block and the second through hole of screened room connects
Logical, so that detector can detect radioactive source, the data detected by detector judge whether detection system is steady
It is fixed, so as to the validity of measurement data before judging, the reliability of raising monitoring system；
(2) cleaning device is provided in screened room, is pumped into after water is pressurized by external booster pump in cleaning pipe, water
It is sprayed at by the apopore in cleaning pipe on the inner wall of screened room, the inner wall of screened room is rinsed, ensure detection system
Vitriol chamber inner wall is shielded in long-play not to be contaminated.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, the part of the application is formed, at this
The same or similar part, the schematic description and description of the application are represented using identical reference number in a little attached drawings
For explaining the application, the improper restriction to the application is not formed.In the accompanying drawings：
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
To make the purpose, technical scheme and advantage of the application clearer, below in conjunction with drawings and the specific embodiments, to this
Application is described in further detail.For the sake of simplicity, it is omitted that well known to a person skilled in the art some skills in being described below
Art feature.
As shown in Figure 1, the present embodiment provides a kind of Low backgrounds to shield vitriol chamber, including the screened room 14 being made by lead, herein
The internal diameter of lead is 50cm, outer diameter 60cm；Detector 5 is provided in screened room 14,14 upper end cover of screened room is equipped with head cover 1, screen
It covers and 8 calibrating installation of radioactive source is provided on 14 lateral wall of room；8 calibrating installation of radioactive source includes housing 7 and is arranged on housing 7
In block 6 He of block137Cs radioactive sources 8, housing 7 and block block 6 and are made by lead；It blocks block 6 and offers to extend transversely through and block block
6 first through hole 9,8 face detector 5 of radioactive source, the position of 14 face detector 5 of screened room, which offers, extends transversely through screened room
Second through hole 10 of 14 side walls；It blocks block 6 to be slidably connected with housing 7, is specifically as follows and blocks block 6 along top of housing 7 or so
It slides, or slided up and down along the side wall of housing 7；In short, blocking block 6 when sliding into a certain position, the of block 6 is blocked
One through hole 9 is connected with the second through hole 10 of screened room 14, and detector 5 can detect radioactive source 8 at this time.
14 periphery of screened room is coated by the stainless-steel sheet 15 of 1cm thickness, and the second through hole 10 extends transversely through stainless-steel sheet 15.
14 inner wall of screened room coats one layer of 2mm thickness oxygen-free copper layer 13, and the second through hole 10 extends transversely through oxygen-free copper layer 13.
The opening of screened room 14 is covered with nylon cover board 2, and nylon sleeve 3 is provided among 2 bottom of nylon cover board, detection
Device 5 is arranged in nylon sleeve 3, and detector 5 is located at the center of screened room 14.
2 bottom of nylon cover board is provided with cleaning device, and cleaning device includes the cleaning disk 4 and four cleaning pipes of circular ring type
11, cleaning disk 4 is mounted on 2 bottom of nylon cover board, and nylon sleeve 3 passes through the hollow space of cleaning disk 4；Cleaning pipe 11 is along clear
The circumferencial direction of dishwashing 4 is uniformly fixedly installed, and several apopores are evenly distributed in cleaning pipe 11；Head cover 1 offers clearly
Wash water mouth, the 11 cleaned mouth of a river of cleaning pipe connect after drawing with external booster pump.The cleaning mouth of a river herein is also used as shielding
The gap of room 14 is covered, one opening of multiplexing can reduce 14 open amount of screened room.
In view of periodic cleaning and easy for installation, stainless steel inner container 12 is provided in screened room 14, the stainless steel inner container 12
Positioned at 13 inside of oxygen-free copper layer, the second through hole 10 extends transversely through stainless steel inner container 12.
Head cover 1 is provided with water inlet, for introducing liquid to be detected；14 bottom of screened room is provided with discharge outlet, is used for
Exclude the liquid in screened room 14；Discharge outlet and water inlet are connected with screened room 14.
Above example only represents the several embodiments of the utility model, and description is more specific and detailed, but not
It is understood that as the limitation to the scope of the utility model.It should be pointed out that for those of ordinary skill in the art, not
On the premise of departing from the utility model design, various modifications and improvements can be made, these belong to the utility model protection
Scope.Therefore the scope of protection of the utility model should be subject to claim.
Claims (10)
1. a kind of Low background shields vitriol chamber, which is characterized in that including screened room, detector is provided in screened room, on screened room
End cap is equipped with head cover, and radioactive source calibrating installation is provided on screened room lateral wall；Radioactive source calibrating installation includes housing, Yi Jishe
Put in the housing block block and radioactive source, block block and be slidably connected with housing, and block block and offer to extend transversely through and block block
First through hole, radioactive source face detector, the position of screened room face detector, which offers, extends transversely through screened room side wall
Second through hole.
2. Low background according to claim 1 shields vitriol chamber, which is characterized in that the radioactive source is137Cs radioactive sources.
3. Low background according to claim 1 or 2 shields vitriol chamber, which is characterized in that the housing and blocks block by lead
It is made.
4. Low background according to claim 1 shields vitriol chamber, which is characterized in that the screened room is made by lead.
5. the Low background shielding vitriol chamber according to claim 1 or 4, which is characterized in that the screened room periphery is by stainless steel
Steel plate coats, and second through hole extends transversely through stainless-steel sheet.
6. Low background according to claim 5 shields vitriol chamber, which is characterized in that the shielding chamber interior walls coat one layer of anaerobic
Layers of copper, second through hole extend transversely through oxygen-free copper layer.
7. Low background according to claim 6 shields vitriol chamber, which is characterized in that the opening of the screened room is covered with Buddhist nun
Imperial cover board, nylon cover board bottom are provided with cleaning device, and cleaning device includes cleaning disk and several cleaning pipes, cleaning pipe pass through
Cleaning disk is connected with nylon cover board, and several apopores, and ejected wash water of the cleaning pipe through the head cover are evenly distributed in cleaning pipe
Mouth is drawn.
8. Low background according to claim 7 shields vitriol chamber, which is characterized in that is provided in the screened room in stainless steel
Courage, the stainless steel inner container are located on the inside of the oxygen-free copper layer, and second through hole extends transversely through stainless steel inner container.
9. Low background according to claim 1 shields vitriol chamber, which is characterized in that the head cover is provided with water inlet, shielding
Room bottom is provided with discharge outlet, and discharge outlet and water inlet are connected with screened room.
10. Low background according to claim 7 shields vitriol chamber, which is characterized in that the nylon cover board bottom is provided with Buddhist nun
Actor playing a supporting role's cylinder, the detector are arranged in nylon sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721112405.XU CN207396751U (en) | 2017-08-31 | 2017-08-31 | A kind of Low background shields vitriol chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721112405.XU CN207396751U (en) | 2017-08-31 | 2017-08-31 | A kind of Low background shields vitriol chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207396751U true CN207396751U (en) | 2018-05-22 |
Family
ID=62416667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721112405.XU Active CN207396751U (en) | 2017-08-31 | 2017-08-31 | A kind of Low background shields vitriol chamber |
Country Status (1)
| Country | Link |
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| CN (1) | CN207396751U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696700A (en) * | 2018-12-27 | 2019-04-30 | 中国工程物理研究院材料研究所 | Extremely low level higher chain product radioactive waste packet detection system |
| CN111123790A (en) * | 2019-12-27 | 2020-05-08 | 珠海广睿汇利发展有限公司 | Sewage discharge monitoring device |
| CN112130194A (en) * | 2020-08-20 | 2020-12-25 | 中国原子能科学研究院 | Quick verifying attachment of neutron detector |
| WO2021022955A1 (en) * | 2019-08-06 | 2021-02-11 | 苏州瑞派宁科技有限公司 | Radiation detection device |
| CN113921152A (en) * | 2021-09-27 | 2022-01-11 | 中国船舶重工集团公司第七一九研究所 | Containment pressure relief and exhaust activity monitoring system |
-
2017
- 2017-08-31 CN CN201721112405.XU patent/CN207396751U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696700A (en) * | 2018-12-27 | 2019-04-30 | 中国工程物理研究院材料研究所 | Extremely low level higher chain product radioactive waste packet detection system |
| CN109696700B (en) * | 2018-12-27 | 2020-12-22 | 中国工程物理研究院材料研究所 | Extremely low level transuranic nuclide radioactive waste package detection system |
| WO2021022955A1 (en) * | 2019-08-06 | 2021-02-11 | 苏州瑞派宁科技有限公司 | Radiation detection device |
| CN111123790A (en) * | 2019-12-27 | 2020-05-08 | 珠海广睿汇利发展有限公司 | Sewage discharge monitoring device |
| CN112130194A (en) * | 2020-08-20 | 2020-12-25 | 中国原子能科学研究院 | Quick verifying attachment of neutron detector |
| CN112130194B (en) * | 2020-08-20 | 2024-02-20 | 中国原子能科学研究院 | Neutron detector rapid inspection device |
| CN113921152A (en) * | 2021-09-27 | 2022-01-11 | 中国船舶重工集团公司第七一九研究所 | Containment pressure relief and exhaust activity monitoring system |
| CN113921152B (en) * | 2021-09-27 | 2023-12-22 | 中国船舶重工集团公司第七一九研究所 | Safety shell pressure relief exhaust activity monitoring system |
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