CN203287217U - Pressure reducing sampling device - Google Patents
Pressure reducing sampling device Download PDFInfo
- Publication number
- CN203287217U CN203287217U CN2013203155931U CN201320315593U CN203287217U CN 203287217 U CN203287217 U CN 203287217U CN 2013203155931 U CN2013203155931 U CN 2013203155931U CN 201320315593 U CN201320315593 U CN 201320315593U CN 203287217 U CN203287217 U CN 203287217U
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- Prior art keywords
- liquid
- liquid passage
- current limliting
- needle tubing
- down sampler
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Abstract
A pressure reducing sampling device comprises a connecting base and a hollow air returning needle. An air inlet is formed in the side wall of the air returning needle. A fixing sleeve is arranged at the lower end of the connecting base in a sleeved mode. A needle tubing connector is limited inside the lower end of the connecting base through the fixing sleeve. A hollow liquid inlet needle is arranged at the lower end of the needle tubing connector. A liquid outlet is formed in the side wall of the liquid inlet needle. The liquid inlet needle is communicated with a first liquid channel arranged inside the connecting base through a second liquid channel in the needle tubing connector. The pressure reducing sampling device further comprises a limiting component which is arranged in the first liquid channel or the second liquid channel. Due to the fact that the limiting component is adopted, the pressure intensity of high-pressure liquid needing to be sampled is reduced, accordingly, the volume of the liquid needing to be sampled is easily controlled, the sampling result is accurate, and the danger occurring in the process of sampling is reduced. The pressure reducing sampling device has the advantages of being simple in structure and convenient to operate.
Description
Technical field
The utility model relates to a kind of step-down sampler that can be very easily carry out the step-down sampling to highly pressurised liquid.
Background technology
In existing technology, particularly in the industries such as oil-extracting and water-injecting, chemical industry, power station, usually need the detection of taking a sample of the liquid in pressure piping, but the pressure of the liquid in pressure piping is too large.When sampling, highly pressurised liquid in pressure piping tends to form foam in sampling jar, perhaps splash on the inwall of sampling jar, thereby be not easy to control the liquid volume that needs sampling, make the result of sampling inaccurate, cause certain difficulty for detecting sampling liquid, and had certain danger.
The utility model content
The purpose of this utility model is for the problems referred to above, to society, provides a kind of step-down sampler that can reduce the pressure of the highly pressurised liquid that needs sampling.
the technical solution of the utility model is: design a kind of step-down sampler, the return-air pin that comprises Connection Block and hollow, be provided with gas feed on the sidewall of described return-air pin, socket one fixed cover on the lower end of described Connection Block, described fixed cover is spacing in the lower end of described Connection Block with a needle tubing connector, the lower end of described needle tubing connector is provided with the feed liquor pin of hollow, be provided with liquid outlet on the sidewall of described feed liquor pin, described feed liquor pin communicates with the first liquid passage in being arranged on described Connection Block by the second liquid passage in described needle tubing connector, also comprise a current limliting member, described current limliting member is arranged in described first liquid passage or second liquid passage.
As to improvement of the present utility model, it is characterized in that: described return-air pin is arranged on the lower end of described needle tubing connector, and described return-air pin communicates with the gas passage in being arranged on described Connection Block.
As to improvement of the present utility model, it is characterized in that: described current limliting member and described first liquid passage or second liquid passage wringing fit, be provided with more than one pod apertures on described current limliting member, the sectional area sum of described pod apertures is less than the cross-sectional area of described liquid outlet.
As to improvement of the present utility model, it is characterized in that: described current limliting member is the regular geometric body.
As to improvement of the present utility model, it is characterized in that: described regular geometric body is right cylinder.
As to improvement of the present utility model, it is characterized in that: described right cylinder is to be provided with externally threaded nut, and described nut is threaded with described first liquid passage or second liquid passage.
As to improvement of the present utility model, it is characterized in that: described current limliting member coordinates with described first liquid passage or second liquid path clearance, and the sectional area in described gap is less than the cross-sectional area of described liquid outlet.
As to improvement of the present utility model, it is characterized in that: described current limliting member is the regular geometric body.
As to improvement of the present utility model, it is characterized in that: described regular geometric body is square.
As to improvement of the present utility model, it is characterized in that: also comprise an O-ring seal, described needle tubing connector is tightly connected by described O-ring seal and described Connection Block.
The utility model, owing to having adopted the current limliting member, has reduced the pressure that needs the highly pressurised liquid of sampling, thereby easily controls the liquid volume that needs sampling, make the result of sampling accurate, and the danger while having reduced sampling, have advantage simple in structure, easy to operate.
Description of drawings
Fig. 1 is the cross-sectional view of a kind of embodiment of the utility model.
Fig. 2 is the cross-sectional view of the another kind of embodiment of the utility model.
Wherein: 1. Connection Block; 11. first liquid passage; 12. gas passage; 13. projection; 2. needle tubing connector; 21. feed liquor pin; 210; Liquid outlet; 22. return-air pin; 220. gas feed; 23. second liquid passage; 3. fixed cover; 31. limited block; 4. current limliting member; 41. pod apertures; 100. O-ring seal.
Embodiment
In description of the present utility model, it will be appreciated that, in term " on ", orientation or the position relationship of the indication such as D score be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than indicate or hint that the device of indication or element must have specific orientation, with specific orientation, construct and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance.
In description of the present utility model, need to prove, unless otherwise clearly defined and limited, term " connection ", " being connected " should be done broad understanding, for example, can be to be fixedly connected with, and can be also that dismounting connects, or connect integratedly; Can be mechanical connection, can be also to be electrically connected to; Can be directly to be connected, can be also indirectly to be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term at concrete meaning of the present utility model.
See also Fig. 1, that Fig. 1 discloses is a kind of a kind of embodiment of step-down sampler, comprise Connection Block 1, the annular wall (not shown) that one projection is arranged in the lower end of described Connection Block 1, be provided with external thread on described annular wall, one fixed cover 3 is provided with internal thread, and described annular wall and described fixed cover 3 are threaded connection.The inwall of the lower end of described fixed cover 3 is provided with the limited block 31 of projection, described limited block 31 is with in the described annular wall of a spacing lower end at described Connection Block 1 of needle tubing connector 2, be provided with an O-ring seal 100 on the sidewall of described needle tubing connector 2, described needle tubing connector 2 is connected with the inner wall sealing of described annular wall.
In the present embodiment, the lower end of described needle tubing connector 2 is provided with feed liquor pin 21 and the return-air pin 22 of hollow, is respectively equipped with liquid outlet 210 and gas feed 220 on the sidewall of described feed liquor pin 21 and described return-air pin 22.Described feed liquor pin 21 communicates with the first liquid passage 11 in being arranged on described Connection Block 1 by the second liquid passage 23 in described needle tubing connector 2, described return-air pin 22 communicates with the gas passage 12 in being arranged on described Connection Block 1, the liquid-inlet of described first liquid passage 11 is arranged on the upper end of described Connection Block 1, and the outlet of described gas passage 12 is arranged on the sidewall of described Connection Block 1.
In the present embodiment, be provided with a depressed part (not shown) in the upper end of described needle tubing connector 2, described depressed part coordinates with the projection 13 in the lower end that is arranged on described Connection Block 1.The benefit of design is like this, engaging by described projection 13 and described depressed part, can be very fast described first liquid passage 11 and described second liquid passage 23 be connected, be provided with O-ring seal 100 on the lug boss of the described second liquid passage 23 of the upper end of described needle tubing connector 2, described first liquid passage 11 seals and conducts with described second liquid passage 23.
In the present embodiment, also comprise a current limliting member 4, described current limliting member 4 is arranged in described first liquid passage 11, and described current limliting member 4 can also be located at (this figure omits) in second liquid passage 23.Described current limliting member 4 and described first liquid passage 11 wringing fits, described current limliting member 4 is to be provided with externally threaded nut, is provided with internal thread in described first liquid passage 11, described nut is threaded with described first liquid passage 11.Be provided with pod apertures 41 on described nut, described pod apertures 41 can be one or more, and the sectional area sum of described pod apertures 41 is less than the cross-sectional area of described liquid outlet 210.The benefit of design is like this, when highly pressurised liquid flows to described feed liquor pin 21 from the described pod apertures 41 of described nut, flow out from the described liquid outlet 210 that is located on described feed liquor pin 21 sidewalls again, due to the sectional area sum of described pod apertures 41 cross-sectional area less than described liquid outlet 210, the pressure when pressure of the liquid that therefore flows out from described liquid outlet 210 is less than described first liquid passage 11 and does not flow through described current limliting member 4, the flow velocity of the liquid that flows out from described liquid outlet 210 has reduced.Make the result of sampling accurate, and reduced the danger while taking a sample, have advantage simple in structure, easy to operate.The xsect of described current limliting member 4 is identical with the cross sectional dimensions shape of described first liquid passage 11, and described current limliting member 4 is regular geometric bodies, for example right cylinder, spheroid etc.Described current limliting member 4 is can also be irregular geometry.
See also Fig. 2, that Fig. 2 discloses is a kind of another kind of embodiment of step-down sampler, comprise Connection Block 1, the annular wall (not shown) that one projection is arranged in the lower end of described Connection Block 1, be provided with external thread on described annular wall, one fixed cover 3 is provided with internal thread, and described annular wall and described fixed cover 3 are threaded connection.The inwall of the lower end of described fixed cover 3 is provided with the limited block 31 of projection, described limited block 31 is with in the described annular wall of a spacing lower end at described Connection Block 1 of needle tubing connector 2, be provided with an O-ring seal 100 on the sidewall of described needle tubing connector 2, described needle tubing connector 2 is connected with the inner wall sealing of described annular wall.
In the present embodiment, the lower end of described needle tubing connector 2 is provided with feed liquor pin 21 and the return-air pin 22 of hollow, is respectively equipped with liquid outlet 210 and gas feed 220 on the inwall of described feed liquor pin 21 and described return-air pin 22.Described feed liquor pin 21 communicates with the first liquid passage 11 in being arranged on described Connection Block 1 by the second liquid passage 23 in described needle tubing connector 2, the gas passage 12 that described return-air pin 22 is arranged in described Connection Block 1 communicates, the liquid-inlet of described first liquid passage 11 is arranged on the upper end of described Connection Block 1, and the outlet of described gas passage 12 is arranged on the sidewall of described Connection Block 1.
In the present embodiment, be provided with a depressed part (not shown) in the upper end of described needle tubing connector 2, described depressed part coordinates with the projection 13 in the lower end that is arranged on described Connection Block 1.The benefit of design is like this, by the engaging of described projection 13 and described depressed part.Can be very fast described first liquid passage 11 and described second liquid passage 23 be connected, be provided with O-ring seal 100 on the lug boss of the described second liquid passage 23 of the upper end of described needle tubing connector 2, described first liquid passage 11 seals and conducts with described second liquid passage 23.
In the present embodiment, also comprise a current limliting member 4, described current limliting member 4 is arranged in described first liquid passage 11, and described current limliting member 4 can also be located at (this figure omits) in second liquid passage 23.Described current limliting member 4 and described first liquid passage 11 clearance fit, described current limliting member 4 is fixed in described first liquid passage 11, described current limliting member 4 is squares, gapped between the inwall of described square and described first liquid passage 11, the sectional area in described gap is less than the cross-sectional area of described liquid outlet 210.The benefit of design is like this, flow to described feed liquor pin 21 from described gap when highly pressurised liquid, flow out from the described liquid outlet 210 that is located on described feed liquor pin 21 sidewalls again, due to the sectional area in the described gap cross-sectional area less than described liquid outlet 210, the pressure when pressure of the liquid that therefore flows out from described liquid outlet 210 is less than described first liquid passage 11 and does not flow through described current limliting member 4, the flow velocity of the liquid that flows out from described liquid outlet 210 has reduced.Make the result of sampling accurate, and reduced the danger while taking a sample, have advantage simple in structure, easy to operate.Described current limliting member 4 is regular geometric bodies, for example tetragonal body, triangle body etc.Described current limliting member 4 can also be irregular geometry.
Claims (10)
1. step-down sampler, the return-air pin that comprises Connection Block and hollow, be provided with gas feed on the sidewall of described return-air pin, socket one fixed cover on the lower end of described Connection Block, described fixed cover is spacing in the lower end of described Connection Block with a needle tubing connector, the lower end of described needle tubing connector is provided with the feed liquor pin of hollow, be provided with liquid outlet on the sidewall of described feed liquor pin, described feed liquor pin communicates with the first liquid passage in being arranged on described Connection Block by the second liquid passage in described needle tubing connector, it is characterized in that, also comprise a current limliting member, described current limliting member is arranged in described first liquid passage or second liquid passage.
2. step-down sampler as claimed in claim 1, it is characterized in that: described return-air pin is arranged on the lower end of described needle tubing connector, and described return-air pin communicates with the gas passage in being arranged on described Connection Block.
3. step-down sampler as claimed in claim 1 or 2, it is characterized in that: described current limliting member and described first liquid passage or second liquid passage wringing fit, be provided with more than one pod apertures on described current limliting member, the sectional area sum of described pod apertures is less than the cross-sectional area of described liquid outlet.
4. step-down sampler as claimed in claim 3, it is characterized in that: described current limliting member is the regular geometric body.
5. step-down sampler as claimed in claim 4, it is characterized in that: described regular geometric body is right cylinder.
6. step-down sampler as claimed in claim 5, it is characterized in that: described right cylinder is to be provided with externally threaded nut, described nut is threaded with described first liquid passage or second liquid passage.
7. step-down sampler as claimed in claim 1, it is characterized in that: described current limliting member coordinates with described first liquid passage or second liquid path clearance, and the sectional area in described gap is less than the cross-sectional area of described liquid outlet.
8. step-down sampler as claimed in claim 7, it is characterized in that: described current limliting member is the regular geometric body.
9. step-down sampler as claimed in claim 8, it is characterized in that: described regular geometric body is square.
10. step-down sampler as described in any one claim in claim 1 to 2 and 4 to 9, it is characterized in that: also comprise an O-ring seal, described needle tubing connector is tightly connected by described O-ring seal and described Connection Block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203155931U CN203287217U (en) | 2013-06-04 | 2013-06-04 | Pressure reducing sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203155931U CN203287217U (en) | 2013-06-04 | 2013-06-04 | Pressure reducing sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203287217U true CN203287217U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203155931U Expired - Fee Related CN203287217U (en) | 2013-06-04 | 2013-06-04 | Pressure reducing sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203287217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108034579A (en) * | 2017-12-08 | 2018-05-15 | 深圳市博瑞生物科技有限公司 | Sampling device |
-
2013
- 2013-06-04 CN CN2013203155931U patent/CN203287217U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108034579A (en) * | 2017-12-08 | 2018-05-15 | 深圳市博瑞生物科技有限公司 | Sampling device |
| CN108034579B (en) * | 2017-12-08 | 2024-05-03 | 深圳市博瑞生物科技有限公司 | Sample loading device |
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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: 20131113 Termination date: 20210604 |