CN201637614U - Portable tritium bubble sampling device - Google Patents
Portable tritium bubble sampling device Download PDFInfo
- Publication number
- CN201637614U CN201637614U CN2010201493412U CN201020149341U CN201637614U CN 201637614 U CN201637614 U CN 201637614U CN 2010201493412 U CN2010201493412 U CN 2010201493412U CN 201020149341 U CN201020149341 U CN 201020149341U CN 201637614 U CN201637614 U CN 201637614U
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- tritium
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Abstract
The utility model belongs to the technical field of radiation protection, and particularly discloses a portable tritium bubble sampling device. A shell is internally provided with a sampling pump, one end of which is connected with an air inlet pipe, and the other end thereof is connected with an exhaust air discharge pipe; and the air inlet pipe is communicated with a sampling bottle. The portable tritium bubble sampling device compensates the limitation of the use of a tritium testing instrument of an ionizing chamber, and the defects of the portability of the existing tritium bubble sampling device, not only achieves the aims of quick sampling, quick sample changing, and quick sample matching, but also reduces the sampling uncertainty and the labor intensity of sampling personnel, and finally provides reliable tritium monitoring data for quick response on the abnormality of tritium on site, and the formulation of a protective scheme for field staff. The device completely meets the work requirement of high-frequency high-efficiency environment tritium sampling in a radiation control area of a heavy water reactor nuclear power plant, and adds high-efficiency path for tritium sampling on site. The tritium sampling efficiency is about 98%, and the relative expanded uncertainty is 4.6%.
Description
Technical field
The utility model belongs to the radiation protection technique field, is specifically related to a kind of sampler.
Background technology
Because the characteristic of tritium, the β ray energy of its emission is very low, can't penetrate detector surface, and therefore the measurement to tritium is relatively difficult.At present, gaseous state tritium sampling operation both domestic and external mainly is divided into two classes, the first kind be can the continuous monitoring air in the monitor of tritium concentration, this type of monitor is gas to be sucked ionization chamber inside carry out continuous coverage, two kinds of fixed online tritium monitor and portable tritium monitors are generally arranged, and the former managed line attenuation influence is very big, and the latter is influenced by the environment gamma-radiation easily, can't normally monitor under the high dose environment field, use all has limitation very much.The sampling of the second class tritium mainly is to adopt tritium bubbler mode to carry out, and this also is the tritium measuring method that generally adopts both at home and abroad at present.It is simpler that Bubbling method is surveyed tritium raito (T.R), accurately and not is subjected to the influence of environment γ and inert gas, and principle of work is that utilization contains the tritium air and clean demineralized water carries out abundant bubbling, and airborne tritium is replaced by water, the content of tritium in the ultimate analysis water.Though Bubbling method can provide result more accurately, volume is big, quality is heavier, sample time is long or need subsidiary many annexes can finish on-the-spot features such as sampling operation but tritium bubbling sampler major part has, for the required high frequency of heavy water reactor power station radiation control zone environment, the work of tritium sampling timely is convenient and swift inadequately rapidly, can't in the shortest time, obtain the flat data of on-the-spot HTO, be unfavorable for the field staff is implemented the tritium protected working, also can't make the analysis of causes fast and judge in the unusual very first time that occurs.
Summary of the invention
The purpose of this utility model is to provide a kind of can realize high frequency, in time take a sample, vary rapidly, simple in structure, easy to operate portable tritium bubbling sampler
The technical solution of the utility model is as follows:
A kind of portable tritium bubbling sampler, it comprises a shell body, is provided with sampling pump in the shell body, and an end of sampling pump connects draft tube, and the other end connects exhaust emission tube, and described draft tube is connected with sampling jar.
In above-mentioned portable tritium bubbling sampler: a fixedly connected detachable enclosing cover on the described shell body, its inside is provided with sampling jar.
In above-mentioned portable tritium bubbling sampler: be provided with switch and flow regulation button on the described shell body.
The beneficial effects of the utility model are: remedied ionization chamber and surveyed the on-the-spot limitation of using of tritium instrument and the deficiency of existing tritium bubbling sampler portable performance, not only realized quick sampling, vary fast, the purpose of joining sample fast, and reduced the uncertainty and the sampling personnel labor intensity of sampling, finally for the unusual quick response of on-the-spot tritium, provide reliable tritium Monitoring Data for the field staff formulates the optimized protection scheme.This device has satisfied the high frequency in heavy water reactor power station radiation control zone environment gaseous state tritium sampling efficiently need of work fully, and is that on-the-spot tritium sampling has increased valid approach.The tritium sampling efficiency is about 98%, relatively expanded uncertainty 4.6%.
Description of drawings
Fig. 1 is portable tritium bubbling sampler;
Among the figure: 1. sampling pump; 2. exhaust emission tube; 3. draft tube; 4. shell body; 5. sampling jar; 6. detachable enclosing cover; 7. switch; 8. flow regulation button.
Embodiment
Below in conjunction with drawings and the specific embodiments the utility model is described in further detail.
As shown in Figure 1, this device has adopted and has comprised the sampling jar 5 of a small size vacuum aspiration pump (band flow adjustment and clocking capability) as 1, one bottleneck tape drum of sampling pump bulb apparatus, and corresponding draft tube 3, exhaust emission tube 2.Sampling pump 1 is installed in the shell body 4, detachable enclosing cover 6 of fixed installation on this shell body 4, and fixed form can be bonding or screw retention.Sampling jar 5 is stuck in the detachable enclosing cover 6, and switch 7 and the flow regulation button 8 that links to each other with sampling pump 1 is installed on the shell body 4, controls sample rate.The material of described shell body 4 can be plastics, and shape does not limit.Draft tube 3 links to each other with sampling pump 1 and exhaust emission tube 2 communicates respectively with sampling pump 1 and sampling jar 5, and draft tube 3, exhaust emission tube 2 are stretched out outside the shell body 4.
The staff at first prepares the sampling jar 5 of respective numbers, will load onto 15 milliliters of demineralized waters in the sampling jar 5, screws lid and the portable tritium bubbling device scene of together taking.The default setting air inlet speed of portable tritium bubbling device is 0.8L/min, unless particular requirement, generalized case all need not be done any change.The sampling personnel only need both hands to hold portable tritium bubbling device, open switch 7 and bleed and can finish sampling task to certain point in 1 minute.
After airborne gaseous state tritium was replaced through the abundant bubbling of the demineralized water in the sampling jar, major part was adsorbed with water, and last staff only needs sampling jar 5 is changed, and joins the sample analysis after sample is sent back to and gets final product.Joining the sample personnel gets 5mL water sample wherein with transfer pipet and is added in the 25mL flicker plastic bottle that the 10mL scintillation solution is housed, fully shake up the back and use liquid scintillation counter measurement to analyze the tritium activity of sample in the plastic bottle, draw airborne tritium concentration in the formula below using at last.
Claims (3)
1. portable tritium bubbling sampler, it comprises a shell body (4), it is characterized in that: be provided with sampling pump (1) in the shell body (4), an end of sampling pump (1) connects draft tube (3), the other end connects exhaust emission tube (2), and described draft tube (3) is connected with sampling jar (5).
2. portable tritium bubbling sampler as claimed in claim 1 is characterized in that: described shell body (4) is gone up a fixedly connected detachable enclosing cover (6), and its inside is provided with sampling jar (5).
3. portable tritium bubbling sampler as claimed in claim 1 is characterized in that: described shell body (4) is provided with switch (7) and flow regulation button (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201493412U CN201637614U (en) | 2010-04-02 | 2010-04-02 | Portable tritium bubble sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201493412U CN201637614U (en) | 2010-04-02 | 2010-04-02 | Portable tritium bubble sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637614U true CN201637614U (en) | 2010-11-17 |
Family
ID=43082118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201493412U Expired - Lifetime CN201637614U (en) | 2010-04-02 | 2010-04-02 | Portable tritium bubble sampling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201637614U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358618A (en) * | 2011-07-04 | 2012-02-22 | 中国工程物理研究院核物理与化学研究所 | Gas-liquid exchange type liquid lithium lead alloy bubbler |
| CN103063480A (en) * | 2013-01-08 | 2013-04-24 | 中国工程物理研究院核物理与化学研究所 | Portable tritiated water sampling device |
| CN105842016A (en) * | 2016-06-02 | 2016-08-10 | 阳江核电有限公司 | Portable radioactive gas sampling device |
| CN106886042A (en) * | 2017-04-17 | 2017-06-23 | 中国工程物理研究院核物理与化学研究所 | Tritium accumulation sampling system in a kind of air |
| CN107422360A (en) * | 2017-05-05 | 2017-12-01 | 国核自仪系统工程有限公司 | Online fluid radiation monitor for nuclear power station |
| CN114167486A (en) * | 2021-12-02 | 2022-03-11 | 中国工程物理研究院核物理与化学研究所 | Wearable tritium sampling device |
-
2010
- 2010-04-02 CN CN2010201493412U patent/CN201637614U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358618A (en) * | 2011-07-04 | 2012-02-22 | 中国工程物理研究院核物理与化学研究所 | Gas-liquid exchange type liquid lithium lead alloy bubbler |
| CN102358618B (en) * | 2011-07-04 | 2013-04-03 | 中国工程物理研究院核物理与化学研究所 | Gas-liquid exchange type liquid lithium lead alloy bubbler |
| CN103063480A (en) * | 2013-01-08 | 2013-04-24 | 中国工程物理研究院核物理与化学研究所 | Portable tritiated water sampling device |
| CN105842016A (en) * | 2016-06-02 | 2016-08-10 | 阳江核电有限公司 | Portable radioactive gas sampling device |
| CN106886042A (en) * | 2017-04-17 | 2017-06-23 | 中国工程物理研究院核物理与化学研究所 | Tritium accumulation sampling system in a kind of air |
| CN107422360A (en) * | 2017-05-05 | 2017-12-01 | 国核自仪系统工程有限公司 | Online fluid radiation monitor for nuclear power station |
| CN114167486A (en) * | 2021-12-02 | 2022-03-11 | 中国工程物理研究院核物理与化学研究所 | Wearable tritium sampling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |
|
| CX01 | Expiry of patent term |