CN106289873B - For the sampler and its application method to the fluid sampling in container - Google Patents
For the sampler and its application method to the fluid sampling in container Download PDFInfo
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- CN106289873B CN106289873B CN201510264828.2A CN201510264828A CN106289873B CN 106289873 B CN106289873 B CN 106289873B CN 201510264828 A CN201510264828 A CN 201510264828A CN 106289873 B CN106289873 B CN 106289873B
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Abstract
The present invention relates to for the sampler and its application method to the fluid sampling in container.Sampler includes: ontology, is equipped with fluid channel, and the sampling cavity through the fluid channel and reservoir and for holding the fluid, wherein the sampling cavity is equipped with sample tap；And first valve and the second valve, the two be spaced apart and arranged at fluid channel, and be constructed to be permeable to it is selectively opened one of them.The Fluid Volume entered in sampler is reduced, is wasted caused by fluid to reduce in sampling, and reduce the disturbance to the fluid in container as much as possible.And simple, small in size, light-weight, the pressure-resistant performance of the structure of the sampler is high, and it is at low cost.
Description
Technical field
It is particularly a kind of for being sampled to the fluid in container the present invention relates to sampler technical field
Sampler further relates to a kind of method using the sampler.
Background technique
Sampler be according to it is different production or scientific research substance, sampling amount, sampling precision or other conditions and set
A kind of device produced is counted, is the necessary devices for being sampled analysis in production activity and scientific research to each substance.
Currently, the sampler that the fluid in a kind of pair of container is sampled includes ontology, is respectively set on the body simultaneously
For accommodating the sampling cavity of fluid and making the fluid channel of sampling cavity and reservoir.And sample tap is equipped on sampling cavity.
When needing to be sampled the fluid in container, receiving is sealingly disposed at fluid channel, and makes fluid along fluid channel
Into in sampling cavity.Then fluid is taken out from sample tap by sampler.But when fluid enters sampling cavity, fluid is logical
Also fluid can be full of in road.In this way, be easy to causeing the waste of fluid in sampling.
Therefore, how to solve the problem of that the fluid in sampling in container is easy to be wasted, be that those skilled in the art need
Technical problems to be solved.
Summary of the invention
The present invention provides a kind of sampler for the fluid sampling in container, can pass through the first valve in sampling
The cooperation of door and the second valve reduces the waste of fluid.
The sampler being used for the fluid sampling in container of the invention, comprising: ontology is equipped with fluid channel, and
Sampling cavity through the fluid channel and reservoir and for holding the fluid, wherein the sampling cavity is equipped with sampling
Mouthful；And first valve and the second valve, the two be spaced apart and arranged at fluid channel, and be constructed to be permeable to it is selectively opened its
In one.
It in one embodiment, further include the shifting that the size in the sampling cavity and for changing the sampling cavity is set
Moving part, and the maximum volume of the sampling cavity be greater than the fluid channel between first valve and the second valve
Volume.
In one embodiment, the ontology includes for the fluid channel, the first valve and the second valve to be arranged
Blocks, and it is sealingly disposed in the annular canister on the blocks and for limiting the sampling cavity, wherein the moving member
It is arranged in the annular canister.
In one embodiment, the moving member includes the plunger being set in the annular canister, and is rotationally covered
It is located at the rotating nut that the annular canister is outer and is fixedly connected with the plunger, wherein the plunger can be threaded to the sampling cavity
Bottom.
It in one embodiment, further include that one end is embedded in the mobile bar and the other end taking equipped with the sample tap
Sample valve rod, wherein the sample tap, which passes through, is arranged in the sampling valve rod and exit passageway and sampling cavity company in mobile bar
It is logical, and the sampling valve rod is additionally provided with gasket in the position of the sample tap.
In one embodiment, first valve and the second valve are arranged in the chamber at the both ends of the fluid channel
In body, and the outlet and the import of the sampling cavity of the container are arranged in the cavity wall of different cavitys, wherein described the
The port block fluid of one valve and the second valve by blocking the fluid channel.
In one embodiment, first valve and the second valve include the steel for blocking the fluid channel
Ball, and described external handle is connect and is located at the steel ball by connecting rod, wherein first valve and the second valve
Door realizes the sealing of fluid by the pressing sleeve being set on the connecting rod.
In one embodiment, it is equipped with the interface for connecting container on the body.
Use of the invention is according to the method that described in any item samplers are sampled among the above, comprising: step 1,
Sampler is connect with container；Step 2 closes the first valve close to container, and opens the second valve close to sampling cavity
Door aspirates the pressure in sampling cavity to negative pressure；Step 3 closes the second valve, opens the first valve, so that fluid is entered fluid logical
Road；And step 4 closes the first valve after repeating step 2 and step 3 at least once, opens the second valve, make fluid into
Enter in sampling cavity, and complete to sample, wherein adjusting moving member makes the volume of sampling cavity when the pressure in sampling cavity is greater than normal pressure
Increase, until being sampled again after the pressure reduction to normal pressure in the sampling cavity.
In one embodiment, after the completion of sampling, container is removed, opens the first valve and the second valve, and adjust movement
Part until the volume of the sampling cavity to minimum.
It compared with the existing technology, can be in the sampler for being sampled to the fluid in container of the invention
The Fluid Volume entered in sampler is reduced by the cooperation of the first valve and the second valve, to reduce in sampling to fluid
Caused by waste, and reduce the disturbance to the fluid in container as much as possible.And the sampler can down-sample chamber
The residual of interior fluid reduces dead volume, and simple, small in size, light-weight, the pressure-resistant performance of the structure of sampler is high, cost
It is low.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.
Fig. 1 is the structural schematic diagram of the sampler of the embodiment of the present invention.
Fig. 2 is the partial schematic diagram in the portion A in Fig. 1.
In the accompanying drawings, identical component uses identical appended drawing reference.The attached drawing is not drawn according to the actual ratio.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
Sampler of the invention is for being sampled the fluid in container.As shown in Figure 1, the sampler includes using
In the ontology 1 of setting sampling cavity 3 and fluid channel 2, and the first valve 5 and the second valve 6 that are separately positioned on ontology 1.
Wherein, for holding fluid in sampling cavity 3, and through fluid channel 2 and reservoir.First valve 5 is close to container, the second valve
6 close to sampling cavity 3, the two can by the opening of selectivity one of them.And the first valve 5 and the equal compartment of terrain of the second valve 6 are set
It sets at fluid channel 2, for blocking or opening fluid channel 2.
When needing to sample, the first valve 5 is first opened, closes the second valve 6.When fluid is full of fluid channel 2, close
First valve 5 opens the second valve 6, is flowed into fluid in sampling cavity 3, and completes the sampling to fluid.Through the above way
Setting, can be effectively reduced into the Fluid Volume in sampler, waste caused by fluid to reduce in sampling, and
The disturbance to the fluid in container is reduced as much as possible.
In addition, being additionally provided with the moving member 4 for changing the volume size of sampling cavity 3 in sampling cavity 3.It is being provided with movement
It after part 4, can be needed according to sampling to change the size of sampling cavity 3, consequently facilitating the pressure of control fluid.In this way, being not required to lead to
It crosses outwardly exhaust fluid and reduces pressure, so as to efficiently reducing dirt of the fluid to external environment in sampling process
Dye.
Further, the maximum volume of sampling cavity 3 is greater than fluid channel 2 between the first valve 5 and the second valve 6
Volume, with can according to sampling need to depressurize the fluid in sampling cavity 3.Certainly, the minimum volume of sampling cavity 3 can be with
Less than volume of the fluid channel 2 between the first valve 5 and the second valve 6, with can be as needed to the stream in sampling cavity 3
Body pressurizes.
In one embodiment, ontology 1 includes the bulk for fluid channel 2, the first valve 5 and the second valve 6 to be arranged
Body 11, and, for example, the annular canister 12 being sealingly disposed on blocks 11 by welding.Wherein, blocks 11 can be
Rectangle.Annular canister 12 constitutes the side wall of sampling cavity 3, and blocks 11 constitutes the bottom wall of sampling cavity 3.Moving member 4 is mounted slidably
In annular canister 12, the roof of sampling cavity 3 is constituted.That is, limiting sampling cavity 3 by annular canister 12, blocks 11 and moving member 4.
So set, simple, small in size, light-weight, the pressure-resistant performance of structure is high and at low cost.
In addition, moving member 4 includes the plunger 41 being set in annular canister 12, and it is rotatably sleeved on outside annular canister 12
And the rotating nut 42 being fixedly connected with plunger 41.When operating, the rotation of plunger 41 is realized by rotating nut 42.By upper
The mode of stating is arranged, and can effectively improve the fastness of plunger 41, to be able to bear biggish pressure.
Preferably, the bottom wall of sampling cavity 3 is plane.Plunger 41 can be threaded to the bottom of sampling cavity 3.That is, sampling cavity 3 is most
Small size is zero, enables fluid to be back in fluid channel 2.
In addition, being additionally provided with the sampling valve rod 7 that one end is embedded in plunger 41 on plunger 41.Sample the other end of valve rod 7
Equipped with sample tap 31.Sealing ring can be set between sampling valve rod 7 and plunger 41, to improve sealing performance between the two.It takes
Sample mouth 31 passes through the exit passageway 73 being arranged on sampling valve rod 7 and plunger 41 and is connected to sampling cavity 3.And the position of sample tap 31
Set the gasket 71 for being additionally provided with and being fixed on sampling valve rod 7 by pressure cap 72.Being equipped on pressure cap 72 makes the logical of sampling probe process
Hole.When needing to sample, so that sampling probe is punctured gasket 71 from through-hole, be then sampled.
Fluid channel 2 is located substantially at the middle part of blocks 11, and be in line shape.The length and size of fluid channel 2 can roots
It is specifically set according to specific demand.In the cavity S6 at the both ends that the first valve 5 and the second valve 6 are arranged in fluid channel 2.
The import of sampling cavity 3 and the outlet of container are arranged on different cavity S6.First valve 5 and the second valve 6 pass through separate
Or the port of fluid channel 2 is blocked to realize opening or sealing fluid channel 2, to realize fluid channel 2 and container and sampling
The connection or disconnection of chamber 3.
Further, the first valve 5 and the second valve 6 include for blocking the steel ball S1 of fluid channel 2, passing through connecting rod
S2 connect with steel ball S1 and is located at the handle S3 in the outside of blocks 11.It is arranged on connecting rod S2 and is sealed with the side wall of cavity S6
The pressing sleeve S4 of setting.It is equipped between pressing sleeve S4 and fluid channel 2 for making the movable space steel ball S1.And steel ball S1's is straight
Diameter less than cavity S6 diameter and be greater than fluid channel 2 diameter (as shown in Figure 2).When connecting rod S2 is mobile, pass through steel ball S1
It is separate or abut fluid channel 2 to realize the circulation or closure of fluid, realize the sealing of fluid, by pressing sleeve S4 to prevent fluid stopping
Body evolution.Connecting rod S2 can be fixed on blocks 11 by attachment cap S5, and connecting rod S2 can be rotated relative to attachment cap S5, from
And to realize the movement of steel ball S1.So set, structure is simple, small in size, dead volume is few, light-weight, it is easy to use.
Preferably, sampling cavity 3 can be set in the top of fluid channel 2, in order to be sampled.Under fluid channel 2
Side is set to the interface 8 of container connection.Interface 8 is setting internal thread connecting hole.Connecting hole can be according to air-path interface 8
It is designed using standard, to improve usability.And the cavity for the first valve 5 to be arranged is arranged in the outlet end of connecting hole
At S6.So set, it is easy to use, it is compact-sized, the volume of sampler can be efficiently reduced.
Fluid can be gas, or liquid.When fluid is gas, which may be implemented 60MPa pressure
The sampling of high pressure gas under power may be implemented good sealing and pressure-resistant performance, and reduce the disturbance to gas.
One specifically using the sampler embodiment in, sampling procedure includes step 1, by sampler with
Container connection.Step 2 closes the first valve 5, and opens the second valve 6, aspirates the pressure in sampling cavity 3 extremely by sampling probe
Negative pressure.Step 3 closes the second valve 6, opens the first valve 5, fluid is made to enter fluid channel 2.Step 4 repeats step 2
With three at least once after, close the first valve 5, open the second valve 6, enter fluid in sampling cavity 3, and complete to sample.Its
In, when the pressure in sampling cavity 3 is greater than normal pressure, adjusting moving member 4 increases the volume of sampling cavity 3, until the sampling cavity 3
In pressure reduction to normal pressure after be sampled again.Interference of the ambient atmos to fluid can be reduced after above-mentioned steps, from
And the accuracy of sampling is improved, and the disturbance during capable of down-sampling to fluid.
In addition, after step 4 further include: after the completion of sampling, remove container, and open the first valve 5 and the second valve
6.Then moving member 4 is adjusted until the volume of the sampling cavity 3 is to minimum.In this way, sampling cavity fluid can be effectively reduced
Residual.When the fluid for needing to sample is corrosive fluid, it is possible to reduce corrosion of the fluid to sampler.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (8)
1. a kind of method for being sampled to the fluid in container, comprising:
Sampler is connect by step 1 with container；
Wherein, the sampler, including
Ontology equipped with fluid channel,
Sampling cavity through the fluid channel and reservoir and for holding the fluid takes wherein the sampling cavity is equipped with
Sample mouth,
First valve and the second valve, first valve and the second valve are arranged in the chamber at the both ends of the fluid channel
In body, and
The moving member of size in the sampling cavity and for changing the sampling cavity is set；
Step 2 closes the first valve close to container, and opens the second valve close to sampling cavity, aspirates the pressure in sampling cavity
Power is to negative pressure；
Step 3 closes the second valve, opens the first valve, fluid is made to enter fluid channel；And
Step 4 closes the first valve after repeating step 2 and step 3 at least once, opens the second valve, enters fluid
It in sampling cavity, and completes to sample, wherein adjusting moving member increases the volume of sampling cavity when the pressure in sampling cavity is greater than normal pressure
Greatly, it is sampled again after the pressure reduction to normal pressure in the sampling cavity.
2. the method according to claim 1, wherein after step 4 further include: after the completion of sampling, remove appearance
Device opens the first valve and the second valve, and adjusts moving member until the volume of the sampling cavity is to minimum.
3. the method according to claim 1, wherein the maximum volume of the sampling cavity is greater than the fluid channel
The volume between first valve and the second valve.
4. according to the method described in claim 3, it is characterized in that, the ontology includes for the fluid channel, to be arranged
The blocks of one valve and the second valve, and it is sealingly disposed in the annular on the blocks and for limiting the sampling cavity
Cylinder, wherein the moving member is arranged in the annular canister.
5. according to the method described in claim 4, it is characterized in that, the moving member includes the column being set in the annular canister
Plug, and it is rotatably sleeved on the rotating nut that the annular canister is outer and is fixedly connected with the plunger, wherein the plunger
It can be threaded to the bottom of the sampling cavity.
6. the method according to any one of claims 1 to 5, which is characterized in that the sampler further includes that one end is embedding
It is located in the moving member and sampling valve rod of the other end equipped with the sample tap, wherein the sample tap is by being arranged described
Exit passageway on sampling valve rod and moving member is connected to the sampling cavity, and the sampling valve rod is in the position of the sample tap
It sets and is additionally provided with gasket.
7. the method according to any one of claims 1 to 5, which is characterized in that first valve and the second valve are equal
Including the steel ball for blocking the fluid channel, and it is connect by connecting rod with the steel ball and is located at described external handle
Hand, wherein first valve and the second valve realize the sealing of fluid by the pressing sleeve being set on the connecting rod.
8. the method according to any one of claims 1 to 5, which is characterized in that be equipped on the body for connecting
The interface of container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510264828.2A CN106289873B (en) | 2015-05-22 | 2015-05-22 | For the sampler and its application method to the fluid sampling in container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510264828.2A CN106289873B (en) | 2015-05-22 | 2015-05-22 | For the sampler and its application method to the fluid sampling in container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106289873A CN106289873A (en) | 2017-01-04 |
| CN106289873B true CN106289873B (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510264828.2A Active CN106289873B (en) | 2015-05-22 | 2015-05-22 | For the sampler and its application method to the fluid sampling in container |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332995A (en) * | 2017-01-20 | 2018-07-27 | 上海溯源生物技术有限公司 | Sampler |
| CN108593352B (en) * | 2018-07-16 | 2024-06-04 | 黄永强 | Environment-friendly liquid chemical sampler |
| CN111202228B (en) * | 2020-02-18 | 2022-12-02 | 杭州美特醇香食品有限公司 | Totally-enclosed jam color-forming sampling and quantitative blending device |
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| CN202188978U (en) * | 2011-08-10 | 2012-04-11 | 中华人民共和国南通出入境检验检疫局 | Pretreatment device of clamping type gas sampling tank |
| CN102650575A (en) * | 2012-04-13 | 2012-08-29 | 宣达实业集团有限公司 | Highly toxic medium sampling method and device |
| CN103308347A (en) * | 2013-06-03 | 2013-09-18 | 国家电网公司 | Special thread-sealing type sampler for oil chromatography test |
| CN103335867A (en) * | 2013-06-03 | 2013-10-02 | 国家电网公司 | Field sampling device special for transformer insulating oil |
| CN204043962U (en) * | 2014-09-12 | 2014-12-24 | 陈远华 | Fluid sampling device |
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2015
- 2015-05-22 CN CN201510264828.2A patent/CN106289873B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202188978U (en) * | 2011-08-10 | 2012-04-11 | 中华人民共和国南通出入境检验检疫局 | Pretreatment device of clamping type gas sampling tank |
| CN102650575A (en) * | 2012-04-13 | 2012-08-29 | 宣达实业集团有限公司 | Highly toxic medium sampling method and device |
| CN103308347A (en) * | 2013-06-03 | 2013-09-18 | 国家电网公司 | Special thread-sealing type sampler for oil chromatography test |
| CN103335867A (en) * | 2013-06-03 | 2013-10-02 | 国家电网公司 | Field sampling device special for transformer insulating oil |
| CN204043962U (en) * | 2014-09-12 | 2014-12-24 | 陈远华 | Fluid sampling device |
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| CN106289873A (en) | 2017-01-04 |
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