CN109141976A - A kind of radioactive liquid sample sampler and sampling method - Google Patents
A kind of radioactive liquid sample sampler and sampling method Download PDFInfo
- Publication number
- CN109141976A CN109141976A CN201811041045.8A CN201811041045A CN109141976A CN 109141976 A CN109141976 A CN 109141976A CN 201811041045 A CN201811041045 A CN 201811041045A CN 109141976 A CN109141976 A CN 109141976A
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- China
- Prior art keywords
- sample
- radioactive liquid
- liquid sample
- sampler
- stack shell
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of radioactive liquid sample samplers, the stack shell including having piston structure；The plunger shaft of the stack shell takes sample feeding mechanism to connect with two.Meanwhile the present invention also provides a kind of radioactive liquid sample methods, and sample point and sample bottle are connected plunger shaft simultaneously, realize transfer of the sample between sample point and sample bottle by piston motion.Beneficial effects of the present invention are as follows: 1, sample point and sample bottle are connected plunger shaft by the present invention simultaneously, sample is shifted by piston motion, it reduces because of repeatedly influence of the connection to sample point system sealing between sampler and sample point, to slow down the problem of leaking because of sample point caused by repeatedly connecting.2, structure is simple and convenient to operate and safety, strong applicability.3, redundant sample can be injected back into sampling dot system, avoid wasting.
Description
Technical field
The invention belongs to analysis and testing technology fields, and in particular to a kind of radioactive liquid sample sampler and sampling side
Method.
Background technique
It often needs to carry out the analysis of radioactive liquid sample to tower, tank and pipeline in relating to core process system, so as to
Monitor the safe and stable operation state of process system.Due to the particularity (radioactivity) of sample, to avoid to sampling personnel's body
And ambient enviroment has some impact on, and needs to control the lower slip of sampler and sample position while needing to redundant sample
It is effectively treated.
Currently, common radioactive liquid sampler is a kind of common syringe, sample point is frequently with interior plus soft silica gel
The nut of gasket is sealed, and repeatedly certain leakage easily occurs in sample point after sampling, needs to frequently replace soft silica gel gasket；By
In radioactive sample have stronger diffusivity and permeability, easily leak air between injection sleeve and push rod end piston and
Leakage；In addition, easily occur the phenomenon that redundant sample in analytic process, increased while sample is lost sample treatment link and at
This.Therefore, a kind of structure is designed to be simple and convenient to operate and the radioactive liquid sample sampler of safety, strong applicability
And sampling method seems particularly necessary.
In view of this, the present invention is specifically proposed.
Summary of the invention
In view of the deficiencies in the prior art, the object of the present invention is to provide a kind of radioactive liquid sample samplers
And sampling method, it reduces because of repeatedly influence of the connection to sample point system sealing between sampler and sample point, to subtract
The problem of leaking because of sample point caused by repeatedly connecting is delayed.
Technical scheme is as follows:
A kind of radioactive liquid sample sampler, the stack shell including having piston structure；The plunger shaft of the stack shell with
Two take sample feeding mechanism to connect.
Further, above-mentioned radioactive liquid sample sampler, described to take sample feeding mechanism include transition connector, needle
Manage and control the needle-valve of liquid on-off in the needle tubing；The transition connector is connect with the plunger shaft.
Further, above-mentioned radioactive liquid sample sampler, the stack shell are set close to the position of transition connector
It is equipped with through-hole, through-hole extends to form outer surface with externally threaded hollow cylinder to the direction far from the plunger shaft；It is described
Hollow cylinder be connected through a screw thread with transition connector.
Further, above-mentioned radioactive liquid sample sampler, the stack shell are additionally provided with drying structure.
Further, above-mentioned radioactive liquid sample sampler, the drying structure include gland, hothouse and consolidate
Fixed pad；The gland is connect so that fixed pad is enclosed stack shell with the stack shell, and the hothouse is located at the gland and institute
It states between fixed pad.
Further, above-mentioned radioactive liquid sample sampler is provided with silica gel or molecular sieve in the hothouse.
Further, above-mentioned radioactive liquid sample sampler, the hothouse are set close to described fixed pad one end
There is filter paper.
Further, above-mentioned radioactive liquid sample sampler, the fixed pad are the circle of polytetrafluoroethylene (PTFE) material
The fixed pad of cylindricality.
Meanwhile the present invention also provides a kind of radioactive liquid sample method, sample point and sample bottle are connected simultaneously
Plunger shaft is connect, transfer of the sample between sample point and sample bottle is realized by piston motion.
Beneficial effects of the present invention are as follows:
1, sample point and sample bottle are connected plunger shaft simultaneously by the present invention, are shifted sample by piston motion, are dropped
It is low between sampler and sample point because of repeatedly influence of the connection to sample point system sealing, to slow down because repeatedly connecting
The problem of caused sample point leaks.
2, structure is simple and convenient to operate and safety, strong applicability.
3, redundant sample can be injected back into sampling dot system, avoid wasting.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of radioactive liquid sample sampler of the present invention.
In above-mentioned attached drawing, 1, push handle；2, push rod；3, hothouse；4, desiccant；5, filter paper；6, fixed pad；7, stack shell；8,
Piston；9, transition connector；10, needle-valve；11, needle tubing.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention provides a kind of radioactive liquid sample sampler, the cylinder including having piston structure
Body 7；The plunger shaft of the stack shell 7 takes sample feeding mechanism to connect with two.It is described that take sample feeding mechanism include transition connector 9, needle tubing
11 and control the needle-valve 10 of liquid on-off in the needle tubing 11；The transition connector 9 is connect with the plunger shaft.The stack shell
7 are provided with through-hole close to the position of transition connector 9, and through-hole extends to form outer surface to the direction far from the plunger shaft and has
Externally threaded hollow cylinder；The hollow cylinder is connected through a screw thread with transition connector 9.Specifically, the work
Plug structure includes push handle 1, piston 8 and push rod 2；2 both ends of push rod are separately connected the setting of piston 8 described in piston 8 and push handle 1.
In in the plunger shaft of the stack shell 7.
The stack shell 7 is additionally provided with drying structure.The drying structure includes gland, hothouse 3 and fixed pad 6；It is described
Gland is connect so that the fixed pad 6 is enclosed stack shell 7 with the stack shell 7, and the hothouse 3 is located at the gland and the fixation
Between pad 6.The gland is connect with stack shell 7 by thread seal.Silica gel or molecular sieve are provided in the hothouse 3 as dry
Drying prescription 4.The hothouse 3 is equipped with filter paper 5 close to 6 one end of the fixed pad.The fixed pad 6 is the circle of polytetrafluoroethylene (PTFE) material
The fixed pad of cylindricality.Gland, filter paper 5,6 sizes of fixed pad are matched with 2 size of push rod.
Meanwhile the present invention also provides a kind of radioactive liquid sample method, sample point and sample bottle are connected simultaneously
Plunger shaft is connect, transfer of the sample between sample point and sample bottle is realized by piston motion.Specifically, being transported by piston
The dynamic on-off between plunger shaft and sample point/sample bottle is connected because multiple to sampling between sampler and sample point to reduce
The influence of dot system sealing, to slow down the problem of leaking because of sample point caused by repeatedly connecting.
The application method of above-mentioned apparatus is as follows:
(a) a certain amount of desiccant 4 is filled in hothouse 3 and tightens gland；
(b) needle tubing 11 is connected respectively with through-hole at transition connector 9 and 7 liang of stack shell and tightens the needle-valve 10 at two；
(c) push rod 2 is pushed into 7 bottom of stack shell and the needle tubing of one of sampling mechanism 11 is inserted into vacuum sample bottle or band
Have in the common sample bottle (not marked in figure) of syringe；
(d) needle tubing 11 of another sampling mechanism is inserted into sample point (not marking in figure), opened corresponding with the sample point
Bellows valve (not marking in figure) on needle-valve 10 and sample point, sample slowly enters in plunger shaft (slow when sample strain is lower
Slow lifting push rod 2), it repeats 2-3 times, last time sample closes bellows valve and corresponding needle-valve 10 after entering sampler, opens
Needle-valve 10 corresponding with sample bottle, sample slowly injects in sample bottle；
(e) 11 tip of needle tubing corresponding with sample bottle is removed to liquid level position in sample bottle and lifts push rod 2, close with
The corresponding needle-valve 10 of sample bottle opens needle-valve 10 corresponding with sample point and bellows valve, extra sample is injected back into sample point
In system；
(f) bellows valve and needle-valve 10 corresponding with sample point, opening and sample are closed after push rod 2 is pushed into 7 bottom of stack shell
The corresponding needle-valve 10 of product bottle continues to repeat step e, until no liquid in needle tubing 11 and stack shell 7；
(g) it closes and the corresponding needle-valve 10 of sample point, bellows valve and needle-valve 10 corresponding with sample bottle, needle tubing 11 is taken out
It sample bottle and is rapidly inserted into needle tubing set (being not drawn into figure) or ready sample bottle out；
(h) after the completion of analyzing, extra sample is taken back into sample point, extracts needle tubing set or ready sample bottle rapidly and will be with
The corresponding needle tubing 11 of sample bottle is inserted into the sample bottle containing redundant sample, opens needle-valve 10 corresponding with sample bottle, will be extra
Sample is evacuated in sampler by push rod 2, closes the needle-valve 10, opens the ripple of needle-valve 10 corresponding with sample point and sample point
Sample is injected back into sampling dot system by pipe valve；
(i) bellows valve for closing needle-valve 10 corresponding with sample point and sample point, opens needle-valve corresponding with sample bottle
10, the sample for continuing not exhaust is evacuated in sampler and closes the needle-valve 10, opens needle-valve 10 corresponding with sample point and takes
Sample is injected back into system and is closed the bellows valve of the needle-valve 10 and sample point by the bellows valve of sampling point.
Sample point and sample bottle are connected plunger shaft simultaneously by the present invention, are shifted sample by piston motion, are reduced
Because of repeatedly influence of the connection to sample point system sealing between sampler and sample point, led to slow down because repeatedly connecting
The problem of sample point leakage of cause.Structure is simple and convenient to operate and safety, strong applicability.And redundant sample can be injected back into
Dot system is sampled, avoids wasting.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.If in this way, belonging to the model of the claims in the present invention and its equivalent technology to these modifications and changes of the present invention
Within enclosing, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. a kind of radioactive liquid sample sampler, it is characterised in that: the stack shell (7) including having piston structure；The cylinder
The plunger shaft of body (7) takes sample feeding mechanism to connect with two.
2. radioactive liquid sample sampler as described in claim 1, it is characterised in that: described to take sample feeding mechanism include transition
The needle-valve (10) of liquid on-off in connector (9), needle tubing (11) and the control needle tubing (11)；The transition connector (9) with
The plunger shaft connection.
3. radioactive liquid sample sampler as claimed in claim 2, it is characterised in that: the stack shell (7) is close to transition
The position of connector (9) is provided with through-hole, and through-hole extends to form outer surface with external screw thread to the direction far from the plunger shaft
Hollow cylinder；The hollow cylinder is connected through a screw thread with transition connector (9).
4. radioactive liquid sample sampler a method according to any one of claims 1-3, it is characterised in that: the stack shell (7) is also
It is provided with drying structure.
5. radioactive liquid sample sampler as claimed in claim 4, it is characterised in that: the drying structure includes pressure
Lid, hothouse (3) and fixed pad (6)；The gland is connect so that the fixed pad (6) is enclosed stack shell with the stack shell (7)
(7), the hothouse (3) is located between the gland and the fixed pad (6).
6. radioactive liquid sample sampler as claimed in claim 5, it is characterised in that: setting in the hothouse (3)
There are silica gel or molecular sieve.
7. radioactive liquid sample sampler as claimed in claim 5, it is characterised in that: the hothouse (3) is close to institute
It states fixed pad (6) one end and is equipped with filter paper (5).
8. radioactive liquid sample sampler as claimed in claim 5, it is characterised in that: the fixed pad (6) is poly- four
The fixed pad of the cylinder of vinyl fluoride material.
9. a kind of radioactive liquid sample method, it is characterised in that: sample point and sample bottle are connected plunger shaft simultaneously, led to
It crosses piston motion and realizes transfer of the sample between sample point and sample bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041045.8A CN109141976A (en) | 2018-09-06 | 2018-09-06 | A kind of radioactive liquid sample sampler and sampling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041045.8A CN109141976A (en) | 2018-09-06 | 2018-09-06 | A kind of radioactive liquid sample sampler and sampling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109141976A true CN109141976A (en) | 2019-01-04 |
Family
ID=64827585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811041045.8A Pending CN109141976A (en) | 2018-09-06 | 2018-09-06 | A kind of radioactive liquid sample sampler and sampling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109141976A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870553A (en) * | 2019-03-18 | 2019-06-11 | 中国原子能科学研究院 | A kind of uranium foil dissolution experiment device |
| CN114713155A (en) * | 2022-05-11 | 2022-07-08 | 北京先通国际医药科技股份有限公司 | Extraction equipment and extraction method of radioactive liquid and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5187991A (en) * | 1989-09-12 | 1993-02-23 | Electro-Nite International N.V. | Device for withdrawing samples from molten metals |
| CN2353936Y (en) * | 1998-10-08 | 1999-12-15 | 葛景琪 | Oil pump |
| CN104502150A (en) * | 2014-12-16 | 2015-04-08 | 武汉海王新能源工程技术有限公司 | Radioactive liquid sample sampling device and radioactive liquid sample sampling method for nuclear power station |
| CN204448044U (en) * | 2015-01-14 | 2015-07-08 | 宁波检验检疫科学技术研究院 | The extraction of liquid and injection device in a kind of closed environment |
| CN107014643A (en) * | 2017-05-31 | 2017-08-04 | 中国工程物理研究院材料研究所 | One kind is used for different depth radioactive liquid sample sampler in container |
-
2018
- 2018-09-06 CN CN201811041045.8A patent/CN109141976A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5187991A (en) * | 1989-09-12 | 1993-02-23 | Electro-Nite International N.V. | Device for withdrawing samples from molten metals |
| CN2353936Y (en) * | 1998-10-08 | 1999-12-15 | 葛景琪 | Oil pump |
| CN104502150A (en) * | 2014-12-16 | 2015-04-08 | 武汉海王新能源工程技术有限公司 | Radioactive liquid sample sampling device and radioactive liquid sample sampling method for nuclear power station |
| CN204448044U (en) * | 2015-01-14 | 2015-07-08 | 宁波检验检疫科学技术研究院 | The extraction of liquid and injection device in a kind of closed environment |
| CN107014643A (en) * | 2017-05-31 | 2017-08-04 | 中国工程物理研究院材料研究所 | One kind is used for different depth radioactive liquid sample sampler in container |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870553A (en) * | 2019-03-18 | 2019-06-11 | 中国原子能科学研究院 | A kind of uranium foil dissolution experiment device |
| CN114713155A (en) * | 2022-05-11 | 2022-07-08 | 北京先通国际医药科技股份有限公司 | Extraction equipment and extraction method of radioactive liquid and application thereof |
| CN114713155B (en) * | 2022-05-11 | 2022-08-30 | 北京先通国际医药科技股份有限公司 | Extraction equipment and extraction method of radioactive liquid and application thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |