CN211235100U - Sampler - Google Patents
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- CN211235100U CN211235100U CN201921813542.5U CN201921813542U CN211235100U CN 211235100 U CN211235100 U CN 211235100U CN 201921813542 U CN201921813542 U CN 201921813542U CN 211235100 U CN211235100 U CN 211235100U
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Abstract
The utility model discloses a sampler, which comprises a first valve, a second valve, a third valve, a material taking main pipe and a bypass branch pipe, wherein the first valve and the second valve are respectively arranged on the material taking main pipe, the third valve is arranged on the bypass branch pipe, one end of the bypass branch pipe is communicated with the material taking main pipe between the first valve and the second valve, and the other end of the bypass branch pipe is connected with a vacuum pump and/or an air pump; above-mentioned sampler simple structure, washing before being convenient for to use, the rinse process, the cost of manufacture is lower, can take a sample to the container or the pipeline of various pressure conditions, the operation of being convenient for, need not be opened by the sample container when the operation, and by in the sample container or the pipeline in the material only flow in the sampler, and in the sampler material can not back mix to by sample container or pipeline, with the help of this sampler, can keep apart material and air at the sample in-process, even the apparatus for producing does not build in clean room, also can avoid the pollution that the air produced the material.
Description
Technical Field
The utility model relates to an ultra-pure chemicals production technical field, in particular to sampler.
Background
Driven by semiconductor research efforts, higher and higher demands are placed on the purity of highly pure substances. The air is a complex mixture with various components, and can affect the production, transportation and analysis processes of high-purity substances, and particularly, the influence of water in the air on hydrophilic substances is more obvious. Production and analysis processes for high purity materials are therefore typically performed in clean rooms, but the manufacturing costs tend to be expensive for larger clean rooms capable of housing production equipment.
The karl fischer moisture determination method is a method which is recognized as the highest accuracy by a plurality of international standards, is the most reliable moisture analysis and measurement instrument at present, and is a common method in research and development, quality control and production monitoring. The common sampling process of the Karl Fischer moisture meter is to inject the sample into a titration cup by virtue of an injector with a long needle, and if the sample can be directly sampled in a production device by virtue of the injector for analysis and sealed until the sample is injected into an analysis instrument, the influence of moisture in the air on the sample can be avoided under the condition that the production device is not built in a clean room, so that the cost for building the clean room is reduced.
Among the prior art, application publication number is CN 109115550A's utility model patent provides a sampling device, though can guarantee that sample and air in the sampling device are contactless, but the device will treat when using that the sampling container will be certainly opened and stretch into it and treat the sampling container in, the operation is inconvenient, be not suitable for storage tank and pipeline etc. among the apparatus for producing, and can not guarantee to treat that the sampling container opens the material in the sample back container and not by air pollution, in addition, this sampling device inner assembly is more, and be difficult for wasing, can eliminate the interference after the last use when can not guaranteeing used repeatedly.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a sampler, which is convenient to operate and can avoid or reduce the influence of moisture in the air on the sample when the production device is not installed in a clean room.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a sampler, includes first valve, second valve, third valve, gets material and is responsible for and bypass branch pipe, first valve and the second valve set up respectively in get material and be responsible for on, the third valve set up in on the bypass branch pipe, the one end of bypass branch pipe is in first valve with between the second valve with get material and be responsible for the intercommunication, the other end and the vacuum pump and/or the air pump of bypass branch pipe are connected.
Preferably, the take-off main pipe comprises at least one section of transparent hose.
Preferably, the material taking main pipe comprises a three-way pipe, a transparent hose and a straight pipe, a first end of the three-way pipe and a first end of the straight pipe are respectively connected to two ends of the transparent hose, a second end of the three-way pipe is communicated with one of the first valve and the second valve, a second end of the straight pipe is communicated with the other one of the first valve and the second valve, and a third end of the three-way pipe is communicated with the bypass branch pipe.
Preferably, the second end of the three-way pipe is communicated with one of the first valve and the second valve through a one-way valve, and the one-way valve conducts the material taking main pipe in one way along the direction from the three-way pipe to the straight pipe;
or the second end of the straight pipe is communicated with the other one of the first valve and the second valve through a one-way valve, and the one-way valve conducts the material taking main pipe in a one-way mode along the direction from the straight pipe to the three-way pipe.
Preferably, the first end of the three-way pipe and the first end of the straight pipe are respectively provided with a pagoda head which is used for being in socket joint connection with the transparent hose.
Preferably, a syringe for drawing a sample from the transparent hose is further included.
Preferably, the syringe further comprises a sealing gasket, wherein the sealing gasket is used for inserting the needle of the syringe after sampling so as to seal the needle of the syringe.
Preferably, the first valve, the second valve and the third valve are all diaphragm valves.
Preferably, a container is further included in communication with the outlet of one of the first valve and the second valve.
Preferably, a one-way breather valve for discharging air in the material taking main pipe is further arranged on the material taking main pipe between the first valve and the second valve.
In order to achieve the above object, the present invention provides a sampler, comprising a first valve, a second valve, a third valve, a main material-taking pipe and a bypass branch pipe, wherein the first valve, the second valve, the third valve, the main material-taking pipe and the bypass branch pipe are made of materials with excellent corrosion resistance, the size of each component is determined according to the caliber size of a position to be sampled, the position to be sampled can be a container or a pipeline, the first valve and the second valve are respectively arranged on the main material-taking pipe, the first valve and the second valve can be respectively arranged at two ends of the main material-taking pipe or at a certain position on the main material-taking pipe, the third valve is arranged on the bypass branch pipe, one end of the bypass branch pipe is communicated with the main material-taking pipe between the first valve and the second valve, the other end of the bypass branch pipe is connected with a vacuum pump and/or an air pump, and one of the vacuum pump and the air pump can be optionally arranged, or the two are connected in parallel with one end of the bypass branch pipe;
when the sampler is applied, one end of the material taking main pipe provided with the first valve or one end provided with the second valve is connected with a position to be sampled, for example, the end of the material taking main pipe provided with the first valve is connected with the position to be sampled, if the position to be sampled is positive pressure, the third valve is closed, the first valve is opened, so that the material to be tested enters the sampling main pipe along the first valve and flows out through the second valve through the sampling main pipe, when the sampler is completely filled with the material to be tested, the first valve and the second valve are closed, the sampler is kept stand, and the sampler is rinsed for 3 to 5 times according to the above mode; after the rinsing is finished, opening a second valve to completely discharge the materials to be detected in the sampler, opening the first valve and the second valve again, and closing the first valve and the second valve to finish material taking when the sampler is completely filled with the materials to be detected;
if the position to be sampled is negative pressure, the first valve and the second valve are closed firstly, the vacuum pump is connected to the bypass branch pipe, the third valve is opened, the vacuum pump and the third valve are used for vacuumizing the interior of the sampler, and after the interior of the sampler is in a vacuum state, the third valve is closed and the first valve is opened, so that the material flows into the sampler by means of gravity and is filled; then closing the first valve and opening the second valve to make the material flow out; repeating the above process 3 to 5 times to rinse the sampler; after the wetting and washing of the sampler are finished, closing the first valve and the second valve again, vacuumizing the sampler, closing the third valve, opening the first valve to enable the sampler to be completely filled with the material to be detected, closing the first valve, and finishing material taking;
if the position to be sampled is normal pressure, the operation under the condition of negative pressure can be referred; if the position to be sampled is inconvenient to vacuumize or can ensure that the sampler cannot introduce air into the position to be sampled, the operation under the positive pressure condition can be referred;
if the materials in the sampler are insufficient in the process of washing and sampling, the materials in the sampler need to be completely discharged and the washing process needs to be repeated so that the materials at the position to be sampled enter the sampler again, and the materials in the sampler can not be back-mixed to the position to be sampled;
to sum up, the sampler simple structure that the present case provided, be convenient for wash before the use, the rinse process, the cost of manufacture is lower, can take a sample to the container or the pipeline of various pressure conditions, be convenient for operate, need not open by the sample container when the operation, and by in the sample container or the pipeline in the material only flows into the sampler, and material can not mix back to by sample container or pipeline in the sampler, can not lead to the fact the pollution to the material by in the sample container or the pipeline, with the help of this sampler, can keep apart material and air in the sample process, even the apparatus for producing does not build in clean room, also can avoid the pollution that the air produced the material.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a sampler provided in an embodiment of the present invention.
In the figure:
1 is a first valve; 2 is a three-way pipe; 3 is a third valve; 4 is a transparent hose; 5 is a straight pipe; 6 is a second valve; and 7 is a syringe.
Detailed Description
The core of the utility model lies in providing a sampler, the structural design of this sampler makes its operation of being convenient for, can avoid or reduce the influence that moisture produced the sample in the air under the condition of clean room not being built at apparatus for producing.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a sampler according to an embodiment of the present invention.
The embodiment of the utility model provides a pair of sampler, include first valve 1, second valve 6, third valve 3, get the material and be responsible for and bypass branch pipe.
Wherein, the first valve 1, the second valve 6, the third valve 3, the main material taking pipe and the bypass branch pipe are all made of materials with excellent corrosion resistance, the size of each component is determined according to the caliber size of the position to be sampled, the position to be sampled can be a container or a pipeline, the first valve 1 and the second valve 6 are respectively arranged on the main material taking pipe, the first valve 1 and the second valve 6 can be respectively arranged at two ends of the main material taking pipe or at a certain position on the main material taking pipe, the third valve 3 is arranged on the bypass branch pipe, one end of the bypass branch pipe is communicated with the main material taking pipe between the first valve 1 and the second valve 6, the other end of the bypass branch pipe is connected with a vacuum pump and/or an air pump, one of the vacuum pump and the air pump can be optionally arranged at one end of the bypass branch pipe according to requirements, or the vacuum pump and the air pump can be connected in parallel with one end of, the air pump can fill inert gas into the sampler to discharge air;
when the sampler is applied, one end of the material taking main pipe provided with the first valve 1 or one end of the material taking main pipe provided with the second valve 6 is connected to a position to be sampled, for example, the end of the material taking main pipe provided with the first valve 1 is connected to the position to be sampled, if the position to be sampled is positive pressure, the third valve 3 is closed, the first valve 1 is opened, the material to be detected enters the sampling main pipe along the first valve 1 and flows out through the second valve 6 through the sampling main pipe, and when the sampler is completely filled with the material to be detected, the first valve 1 and the second valve 6 are closed, the sampler is kept stand, and the sampler is rinsed for 3 to 5 times according to the above mode; after the rinsing is finished, opening the second valve 6 to completely discharge the materials to be detected in the sampler, opening the first valve 1 and the second valve 6 again, and closing the first valve 1 and the second valve 6 when the sampler is completely filled with the materials to be detected to finish material taking;
if the position to be sampled is negative pressure, firstly closing the first valve 1 and the second valve 6, connecting the vacuum pump to the bypass branch pipe, opening the third valve 3, vacuumizing the sampler by means of the vacuum pump and the third valve 3, and after the sampler is in a vacuum state, closing the third valve 3 and opening the first valve 1 to ensure that the material flows into the sampler by means of gravity and is fully filled; then the first valve 1 is closed, and the second valve 6 is opened to make the material flow out; repeating the above process 3 to 5 times to rinse the sampler; after the wetting and washing of the sampler are finished, closing the first valve 1 and the second valve 6 again, vacuumizing the sampler, closing the third valve 3, opening the first valve 1 to enable the sampler to be completely filled with the material to be detected, closing the first valve 1, and finishing material taking;
if the position to be sampled is normal pressure, the operation under the condition of negative pressure can be referred; if the position to be sampled is inconvenient to vacuumize or can ensure that the sampler cannot introduce air into the position to be sampled, the operation under the positive pressure condition can be referred;
if the materials in the sampler are insufficient in the process of washing and sampling, the materials in the sampler need to be completely discharged and the washing process needs to be repeated so that the materials at the position to be sampled enter the sampler again, and the materials in the sampler can not be back-mixed to the position to be sampled;
compared with the prior art, the utility model provides a sampler simple structure, washing before convenient to use, the rinse-process, the cost of manufacture is lower, can take a sample to the container or the pipeline of various pressure conditions, the operation of being convenient for, need not be opened by the sample container when the operation, and in the material by sample container or pipeline only flowed into the sampler, and the material can not mix back to by sample container or pipeline in the sampler, can not lead to the fact the pollution to the material by sample container or pipeline, with the help of this sampler, can keep apart material and air in the sample process, even though the apparatus for producing does not build in clean room, also can avoid the pollution that the air produced the material.
Because the sample introduction process of the common Karl Fischer moisture meter is to inject a sample into a titration cup by virtue of an injector 7 with a long needle, in order to be better matched with the analysis instrument, the material taking main pipe at least comprises a section of transparent hose 4, the transparent hose 4 is preferably a transparent polytetrafluoroethylene pipe, or can be made of other semitransparent materials which can clearly see the internal liquid level and have better chemical inertness, and the transparent hose 4 can be pierced by the injector 7 with the needle for sampling and then transferred into the analysis instrument.
Correspondingly, the sampler also comprises a syringe 7 for drawing the sample from the transparent hose 4.
Further, the sampler further includes a sealing pad for inserting the needle of the syringe 7 after sampling to seal the needle of the syringe 7, which may be a silicone pad, a cork, or the like.
Before sampling using the syringe 7, the syringe 7 needs to be rinsed, and the rinsing process is as follows: when the sampler is completely filled with the material to be detected, the first valve 1 and the second valve 6 are closed, the injector 7 is used for penetrating the transparent hose 4 in the obliquely upward direction, the syringe 7 is pulled out and the needle remains on the transparent hose 4 after a certain amount of the material to be detected is sucked, then the material in the syringe 7 is discharged, and the steps are repeated to rinse the syringe 7 for 3 to 5 times.
After the rinsing is finished, the injector 7 is used for sucking and taking out enough material quantity consumed by analysis in the transparent hose 4, then the material quantity is pulled out together with the needle head, the needle head is immediately penetrated into the sealing gasket, the needle head is sealed by the sealing gasket, and the sealed injector 7 filled with the material to be detected can be simply packaged and then sent to an analysis chamber.
Furthermore, as shown in fig. 1, the material taking main pipe comprises a three-way pipe 2, a transparent hose 4 and a straight pipe 5, a first end of the three-way pipe 2 and a first end of the straight pipe 5 are respectively connected to two ends of the transparent hose 4, a second end of the three-way pipe 2 is communicated with one of the first valve 1 and the second valve 6, a second end of the straight pipe 5 is communicated with the other of the first valve 1 and the second valve 6, a third end of the three-way pipe 2 is communicated with the bypass branch pipe, and the three-way pipe 2 and the straight pipe 5 are made of EP-grade stainless steel.
Furthermore, in order to avoid material backflow in the sampler, in the embodiment of the present invention, the second end of the three-way pipe 2 is communicated with one of the first valve 1 and the second valve 6 through the one-way valve, and the one-way valve conducts the material taking main pipe in one way along the direction from the three-way pipe 2 to the straight pipe 5, in this case, the material taking main pipe is connected with the material waiting position through one of the first valve 1 and the second valve 6 connected with the three-way pipe 2;
or the second end of the straight pipe 5 is communicated with the other one of the first valve 1 and the second valve 6 through the one-way valve, and the material taking main pipe is communicated in one way through the one-way valve along the direction from the straight pipe 5 to the three-way pipe 2, under the condition, the material taking straight pipe 5 is connected with the material taking position through one of the first valve 1 and the second valve 6, wherein the one of the first valve 1 and the second valve 5 is connected with the straight pipe 5.
Preferably, the first end of the three-way pipe 2 and the first end of the straight pipe 5 are respectively provided with a pagoda head for socket connection with the transparent hose 4, so that the transparent hose 4 has certain sealing performance after socket connection with the three-way pipe 2 and the straight pipe 5.
Preferably, the first valve 1, the second valve 6, and the third valve 3 are all diaphragm valves having excellent sealing performance and corrosion resistance, but other valves having excellent sealing performance and corrosion resistance may be used, and are not limited herein.
In order to facilitate the rinsing and emptying of the sampler, in an embodiment of the present invention, the sampler further comprises a container communicating with the outlet of one of the first valve 1 and the second valve 6, wherein the material during the rinsing process and during the final emptying is introduced into the container, thereby preventing the material from flowing elsewhere.
In sampler feeding process, if there is gas in the sampler, because the sampler leakproofness is better, along with the increase of material in the sampler, pressure in the sampler will increase thereupon, has the problem of leaking and sample not smooth, and is in for this the embodiment of the utility model provides an in, still be provided with on getting between first valve 1 and the second valve 6 and be used for getting the material owner in the air escape's one-way breather valve, this one-way breather valve can be along with the gas outgoing in the feeding process of sampler with the sampler, avoids the outside air to get into simultaneously.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a sampler, its characterized in that includes first valve, second valve, third valve, gets material and is responsible for and bypass branch pipe, first valve and the second valve set up respectively in get material and be responsible for on, the third valve set up in on the bypass branch pipe, the one end of bypass branch pipe is in first valve with between the second valve with get material and be responsible for the intercommunication, the other end and the vacuum pump and/or the air pump of bypass branch pipe are connected.
2. A sampler according to claim 1, in which the withdrawal main comprises at least one section of transparent hose.
3. The sampler of claim 2, wherein the main material taking pipe comprises a three-way pipe, a transparent hose and a straight pipe, wherein a first end of the three-way pipe and a first end of the straight pipe are respectively connected to two ends of the transparent hose, a second end of the three-way pipe is communicated with one of the first valve and the second valve, a second end of the straight pipe is communicated with the other one of the first valve and the second valve, and a third end of the three-way pipe is communicated with the bypass branch pipe.
4. A sampler according to claim 3, wherein the second end of the tee is in communication with one of the first valve and the second valve via a one-way valve which unidirectionally communicates the main take-off pipe in the direction from the tee to the straight pipe;
or the second end of the straight pipe is communicated with the other one of the first valve and the second valve through a one-way valve, and the one-way valve conducts the material taking main pipe in a one-way mode along the direction from the straight pipe to the three-way pipe.
5. A sampler according to claim 3 or 4, wherein the first end of the tee pipe and the first end of the straight pipe are each provided with a pagoda head for socket connection with the transparent hose.
6. A sampler according to any of claims 2 to 4, further comprising a syringe for withdrawing a sample from the transparent hose.
7. The sampler of claim 6, further comprising a gasket for insertion of the needle of the syringe after sampling to seal the needle of the syringe.
8. A sampler according to any of claims 1 to 4 and 7, wherein the first, second and third valves are diaphragm valves.
9. A sampler according to any of claims 1 to 4 and 7, further comprising a container in communication with the outlet of one of the first and second valves.
10. The sampler of any one of claims 1-4 and 7, wherein a one-way breather valve is further provided in the main take-off pipe between the first valve and the second valve for venting air from the main take-off pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921813542.5U CN211235100U (en) | 2019-10-25 | 2019-10-25 | Sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921813542.5U CN211235100U (en) | 2019-10-25 | 2019-10-25 | Sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211235100U true CN211235100U (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921813542.5U Active CN211235100U (en) | 2019-10-25 | 2019-10-25 | Sampler |
Country Status (1)
| Country | Link |
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| CN (1) | CN211235100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747259A (en) * | 2021-01-21 | 2021-05-04 | 碎得机械(北京)有限公司 | Sealed treatment bin and dangerous waste treatment system |
| CN114062056A (en) * | 2021-10-09 | 2022-02-18 | 中核核电运行管理有限公司 | Sampling device suitable for negative pressure and malleation gas pipeline |
-
2019
- 2019-10-25 CN CN201921813542.5U patent/CN211235100U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747259A (en) * | 2021-01-21 | 2021-05-04 | 碎得机械(北京)有限公司 | Sealed treatment bin and dangerous waste treatment system |
| CN114062056A (en) * | 2021-10-09 | 2022-02-18 | 中核核电运行管理有限公司 | Sampling device suitable for negative pressure and malleation gas pipeline |
| CN114062056B (en) * | 2021-10-09 | 2024-03-19 | 中核核电运行管理有限公司 | Sampling device suitable for negative pressure and positive pressure gas pipeline |
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Address after: 215152 Anmin Road, Panyang Industrial Park, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Jinhong Gas Co.,Ltd. Address before: 215152 No. 6 Anmin Road, Panyang Industrial Park, Huangdi Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU JINHONG GAS Co.,Ltd. |