CN202166555U - Small size radiolysis gas collector - Google Patents
Small size radiolysis gas collector Download PDFInfo
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- CN202166555U CN202166555U CN2011202374241U CN201120237424U CN202166555U CN 202166555 U CN202166555 U CN 202166555U CN 2011202374241 U CN2011202374241 U CN 2011202374241U CN 201120237424 U CN201120237424 U CN 201120237424U CN 202166555 U CN202166555 U CN 202166555U
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- radiolysis
- radiolysis gas
- collector
- valve
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Abstract
The utility model discloses a small size radiolysis gas collector, which can resist strong radiation and belongs to the technical field of radioactive waste processing. A collector main body of the collector is connected with a flange through threads, and the collector main body and a flange cover are sealed through a sealing washer. A graphite needle-type sealing valve which can resist radiation is welded on the flange, an air extraction opening is arranged on the valve, and the lower portion of the valve is welded with the bottom face of the flange cover. The small size radiolysis gas collector is convenient to operate, is mainly used for resisting gamma radiation of materials such as radioactive waste cement solidification and radioactive solid waste (like waste resin) easy to generate radiolysis gas and concrete and collecting radiolysis gas generated in a self radioactive radiation process, can achieve long-time sealing of the collector, and brings convenience to detection of the radiolysis gas.
Description
Technical field
The utility model belongs to the radioactive waste processing technology field, is specifically related to a kind of small-sized radiolysis gas gatherer of anti-strong irradiation.
Background technology
At present, domestic low, middle horizontal radiation property refuse is implemented cement solidification/fixing.The refuse body that cement solidification produces need carry out Performance Detection.Standard GB 14569.1-93 " low, middle horizontal radiation property solidification of waste body performance requirement-solidified cement body " has stipulated the curing sample of Performance Detection use φ 50 * H50mm.
Solidified cement body is after particularly the spent resin cement solidification body receives irradiation, and when integral dose reached certain value, radiolysis can take place its component, forms the radiolysis product.In the storage and disposal of radioactive waste, one of gas of its concern is the generation of hydrogen.In addition,, then can influence the chemical environment of disposing the storehouse, thereby cause the influence that the refuse body is leached if produce sour gas.Irradiation also may generate other some micromolecular organism, and the generation of these materials can cause the leaching of total organic carbon in the solidified cement body (DOC), thereby underground water generates organic pollutants are threatened.Britain has carried out the γ irradiation test of body of cement.This test is mainly carried out in the irradiated fuel store pond of Ha Weier, and dose rate is 3Gy/s, and for most of samples, its integral dose reaches 9-12MGy, and under this integral dose, equilibrium temperature reaches 50-55 ℃.Slag cement, the clean slurry of normal portland cement receive behind the irradiation significant surperficial blistering and cracking to take place, and this phenomenon occurred in the borate waste solution solidified cement body.Some solidified cement bodies disintegrate behind irradiation, the phenomenon in fragmentation or crack possibly be summed up as: the expansion of (1) solid phase increases; (2) accumulation of air pressure in the storage pore.Therefore the small-sized radiolysis gas gatherer of developing a kind of anti-strong irradiation guarantees that solidified cement body is in the irradiation of anti-γ process; Radiolysis product (particularly radiolysis gas) does not leak; Be the analysis of follow-up radiolysis product, and the evaluation that solidified cement body is disposed security is become very important.
The utility model content
Needs to defective that exists in the existing solidified cement body irradiation test and radiolysis gas detection; The purpose of the utility model is to provide a kind of small-sized radiolysis gas gatherer; Make it both satisfy the requirement of the present solidified cement body irradiation test of anti-γ process safe; Can realize long term seal again, for the detection of radiolysis gas provides effective assurance.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is following:
A kind of small-sized radiolysis gas gatherer, this gatherer comprises the trap body of column type, and trap body is connected with flange, is provided with packing washer between trap body and the flange, is welded with graphite needles type sealed valve on the flange, and valve is provided with bleeding point.
Further, aforesaid a kind of small-sized radiolysis gas gatherer, the wall thickness of said trap body is 3mm-5mm, and internal diameter size is 60 ± 0.5mm, and height is 180 ± 0.5mm.
Further, aforesaid a kind of small-sized radiolysis gas gatherer, described graphite needles type sealed valve is positioned at the central authorities of flange, the bottom of graphite needles type sealed valve and the welding of the bottom surface of blind flange.
Further again, aforesaid a kind of small-sized radiolysis gas gatherer has the threaded hole that several and trap body match on the said flange, and flange and trap body are through being threaded.
Further, a kind of as stated small-sized radiolysis gas gatherer, the number of said threaded hole is 4-8.
The effect of the utility model is:
(1) this trap body and blind flange adopt stainless steel, can guarantee the ability γ irradiation of gatherer own, can also guarantee using for a long time of gatherer;
(2) this gatherer can be realized the long term seal performance, for the detection of radiolysis gas behind the solidified cement body irradiation of anti-γ is given security;
(3) each parts of this gatherer have all taken into full account its irradiation behaviour of anti-γ, and convenient with the interface of follow-up radiolysis gas detecting instrument.
Description of drawings
Fig. 1 is the structural representation of a kind of small-sized radiolysis gas gatherer of the utility model.
Embodiment
Below in conjunction with Figure of description and embodiment the utility model is done further detailed description.
Fig. 1 shows the structural representation of a kind of small-sized radiolysis gas gatherer of the utility model; By finding out among the figure; This gatherer comprises a trap body 1, and trap body 1 is connected (number of threaded hole is generally 4-8) through screw thread with the flange that has threaded hole 3, is provided with packing washer 2 between flange 3 and the trap body 1; The central authorities of flange 3 are welded with graphite needles type sealed valve 5; Also be provided with bleeding point 4 on the valve 5,, radiolysis gas be pumped in the analytical instrument through bleeding point 4 detect so that irradiation is opened sealed valve 5 after finishing.The argon arc welding is carried out in the bottom of valve 5 and the bottom surface of blind flange, guarantees that radiolysis gas can only be through valve 5 turnover.
Consider that solidified cement body is of a size of Φ 50mm * H50mm in the domestic solidified cement body detection relevant criterion.The small-sized radiolysis gas collector design of the utility model internal diameter is 60 ± 0.5mm, high 180 ± 0.5mm.Small-sized radiolysis gas gatherer can be placed 3 of the cement solidification pieces of Φ 50mm * H50mm.
When using this gatherer to operate, its concrete operation steps is following:
(1) confirms the gatherer that to use;
(2) open gatherer, scrutiny blind flange, trap body;
(3) flange on top is taken away, the pipe cap of screw thread is exposed;
(4) the cement solidification sample is packed into;
(5) place red copper or lead-tight pad on main body top;
(6) cover blind flange, tighten 4-8 bolt;
(7) open sealed valve, the back valve-off is evacuated;
(8) carry out the hot bath leak test;
(9) be sent to irradiation center irradiation after qualified, collect radiolysis gas;
(10) be sent to inspection center after irradiation finishes, open sealed valve, detecting in the radiolysis gas suction analytical instrument.
For guaranteeing that gas does not leak, it is material that the trap body of this radiolysis gas gatherer and blind flange have all adopted stainless steel.Each parts of this gatherer have all taken into full account the irradiation of anti-γ, and for example the sealed valve of graphite needles type, packing washer have adopted red copper or plumbous material, can guarantee that gatherer itself can irradiation of anti-γ and long-term use the thereof.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technology thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
Claims (5)
1. small-sized radiolysis gas gatherer; It is characterized in that: this gatherer comprises the trap body (1) of column type; Trap body (1) is connected with flange (3); Be provided with packing washer (2) between trap body (1) and the flange (3), be welded with graphite needles type sealed valve (5) on the flange, valve (5) is provided with bleeding point (4).
2. a kind of small-sized radiolysis gas gatherer as claimed in claim 1, it is characterized in that: the wall thickness of said trap body (1) is 3mm-5mm, and internal diameter size is 60 ± 0.5mm, and height is 180 ± 0.5mm.
3. a kind of small-sized radiolysis gas gatherer as claimed in claim 1, it is characterized in that: described graphite needles type sealed valve (5) is positioned at the central authorities of flange, the bottom of graphite needles type sealed valve (5) and the welding of the bottom surface of blind flange.
4. a kind of small-sized radiolysis gas gatherer as claimed in claim 1 is characterized in that: have the threaded hole that several and trap body (1) match on the said flange (3), flange (3) and trap body (1) are through being threaded.
5. like the said a kind of small-sized radiolysis gas gatherer of claim 4, it is characterized in that: the number of said threaded hole is 4-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202374241U CN202166555U (en) | 2011-07-07 | 2011-07-07 | Small size radiolysis gas collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202374241U CN202166555U (en) | 2011-07-07 | 2011-07-07 | Small size radiolysis gas collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202166555U true CN202166555U (en) | 2012-03-14 |
Family
ID=45802373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202374241U Expired - Fee Related CN202166555U (en) | 2011-07-07 | 2011-07-07 | Small size radiolysis gas collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202166555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279277A (en) * | 2018-02-11 | 2018-07-13 | 西北大学 | A kind of sampler and its detection method of detection radiating gas product |
| CN110006703A (en) * | 2019-04-18 | 2019-07-12 | 中国原子能科学研究院 | A kind of Small Solid α source irradiation product collects measuring device and method |
| CN110097990A (en) * | 2018-01-31 | 2019-08-06 | 中国辐射防护研究院 | A kind of simulation container of the high whole container of high density polyethylene (HDPE) |
-
2011
- 2011-07-07 CN CN2011202374241U patent/CN202166555U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110097990A (en) * | 2018-01-31 | 2019-08-06 | 中国辐射防护研究院 | A kind of simulation container of the high whole container of high density polyethylene (HDPE) |
| CN110097990B (en) * | 2018-01-31 | 2023-01-17 | 中国辐射防护研究院 | Simulation container of high-density polyethylene high-integral container |
| CN108279277A (en) * | 2018-02-11 | 2018-07-13 | 西北大学 | A kind of sampler and its detection method of detection radiating gas product |
| CN108279277B (en) * | 2018-02-11 | 2019-08-09 | 西北大学 | A kind of sample preparation device and its detection method detecting radiating gas product |
| CN110006703A (en) * | 2019-04-18 | 2019-07-12 | 中国原子能科学研究院 | A kind of Small Solid α source irradiation product collects measuring device and method |
| CN110006703B (en) * | 2019-04-18 | 2020-11-10 | 中国原子能科学研究院 | Small-sized solid alpha source irradiation product collecting and measuring device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20200707 |