CN216955303U - Closed sampling device - Google Patents
Closed sampling device Download PDFInfo
- Publication number
- CN216955303U CN216955303U CN202122870487.7U CN202122870487U CN216955303U CN 216955303 U CN216955303 U CN 216955303U CN 202122870487 U CN202122870487 U CN 202122870487U CN 216955303 U CN216955303 U CN 216955303U
- Authority
- CN
- China
- Prior art keywords
- sampling
- valve
- liquid
- return
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 127
- 239000007788 liquid Substances 0.000 claims abstract description 79
- 238000001514 detection method Methods 0.000 claims description 17
- 238000004458 analytical method Methods 0.000 claims description 10
- 238000001139 pH measurement Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000000284 extract Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 238000003915 air pollution Methods 0.000 abstract description 3
- 238000010992 reflux Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- -1 chemical engineering Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the technical field of sampling devices, and discloses a closed sampling device which comprises a closed product tank filled with a sample, wherein a backflow channel and a liquid taking channel are arranged on the product tank; when sampling is needed, opening a sampling valve and a reflux valve, starting a sampling pump, extracting a sample from a product tank by the sampling pump, and allowing the extracted sample to flow into a sampling bottle through the sampling valve; exert outer suction through the sample pump to the sample in the product jar, extract out the sample in the product jar, need not carry out extra artifical trompil on the product jar, harmful substance excessive volatilization in the product jar when preventing the sample effectively reduces air pollution, has guaranteed operating personnel's personal safety.
Description
Technical Field
The utility model relates to the technical field of sampling devices, in particular to a closed sampling device.
Background
Sampling is to extract a part of samples from all samples to be researched for analysis, the basic requirement is to ensure that the extracted samples have sufficient representativeness to all samples, the purpose is to analyze and research the extracted samples, and further to estimate and infer the characteristics of all samples, the sampling method is an economical and effective research method commonly adopted by scientific experiments, quality inspection and the like, and is often applied to the technical production fields of petroleum, chemical engineering, medicine and the like.
In the production process of chemical and pharmaceutical technologies, especially in the later reaction stage of the synthesis stage of chemical synthetic drugs, sampling analysis is generally required, however, in the existing method, a hole is manually formed in a product tank, and then a sampling tube is extended into the product tank from outside to inside to carry out open type direct sampling, so that harmful volatile gas in the product tank easily overflows, the environment is polluted, the personal safety is harmed, and the sample is easily polluted.
Therefore, a need exists for a closed sampling device that can sample without manual tapping of the product tank.
Disclosure of Invention
The utility model aims to provide a closed sampling device, and aims to solve the problem that manual hole opening is needed on a product tank during sampling in the prior art.
The utility model is realized in such a way that the closed sampling device comprises a closed product tank filled with liquid, wherein a backflow channel and a liquid taking channel are arranged on the product tank, a backflow valve is arranged on the backflow channel, a sampling pump is arranged on the liquid taking channel, a sampling valve is arranged on one side of the sampling pump, which is far away from the product tank, and a sampling bottle is connected between the backflow valve and the sampling valve; when sampling is needed, the sampling valve and the reflux valve are opened, the sampling pump is started, the sampling pump extracts liquid from the product tank, and the liquid flows into the sampling bottle through the sampling valve.
Furthermore, after the liquid taking channel passes through the sampling valve, two passages are formed, wherein one passage is a detection passage provided with a detection analysis instrument, and the detection passage is connected and communicated with the return channel; the other is a quantitative passage provided with a quantitative sampling tube; the quantitative passage is connected and communicated with the sampling bottle through a drainage tube;
after the liquid flowing to the detection passage is detected by the detection and analysis instrument, the liquid is recovered to the product tank through the return passage; and after the liquid flowing to the quantitative passage enters the quantitative sampling tube, the liquid enters the sampling bottle through the drainage tube.
Further, the both ends of ration sampling tube all are equipped with pneumatic switch valve, close and keep away from the first pneumatic switch valve of sample valve opens and is close to the second pneumatic switch valve of sample valve, and liquid passes through the second pneumatic switch valve enters into the ration sampling tube, is full of when liquid is full of during the ration sampling tube, closes the second pneumatic switch valve, obtains the liquid of set amount.
Furthermore, the first pneumatic switch valve and the second pneumatic switch valve are both provided with outlet channels, the outlet channel of the first pneumatic switch valve is connected with a return pipe, the return pipe is provided with a first outlet valve, the outlet channel of the second pneumatic switch valve is connected with the drainage pipe, the drainage pipe is provided with a second outlet valve, the first outlet valve and the second outlet valve are opened, and the liquid of the quantitative sampling pipe flows out of the second outlet valve and enters the sampling bottle; the tail end of the backflow pipe is connected and communicated with the sampling bottle, and when the sampling bottle is filled with liquid, the redundant liquid is recycled through the backflow pipe.
Furthermore, a third outlet valve is arranged above the first pneumatic switch valve, the quantitative sampling tube, the return tube and the return channel are communicated with each other through pipelines, and liquid in the quantitative sampling tube and the return tube can flow out through the third outlet valve and enter the return channel.
Further, a flow sensor for detecting the amount of liquid recovered through the return passage is provided at an end of the return passage remote from the product tank.
Further, one side of the return valve, which is far away from the product tank, is provided with a pressure sensor for detecting and adjusting the air pressure in the whole device.
Furthermore, one end of the return channel, which is far away from the product tank, is provided with a temperature sensor for detecting the ambient temperature of the whole device.
Furthermore, on the return passage, the flow sensor, the pressure sensor and the temperature sensor are arranged in sequence from the near to the far direction away from the product tank.
Furthermore, a PH acid-base detector for detecting the acidity of the liquid is arranged at one end, away from the product tank, of the sampling valve, and the liquid flows out of the sampling valve and then flows through the PH acid-base detector to perform acid-base detection.
Compared with the prior art, the closed sampling device provided by the utility model has the advantages that the backflow channel and the liquid taking channel are respectively connected with the product tank in a closed manner, external suction is applied to liquid in the product tank through the sampling pump, the liquid in the product tank is extracted out, the extracted liquid enters the sampling bottle after flowing through the sampling valve, when the liquid in the sampling bottle reaches the set sampling amount, the sampling valve is closed, the closed sampling operation of the liquid can be completed, extra manual hole opening on the product tank is not needed, the harmful substances in the product tank are effectively prevented from overflowing and volatilizing during sampling, the air pollution is reduced, and the personal safety of operators is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the closed sampling device provided by the present invention;
FIG. 2 is a partially enlarged schematic view of a portion of a quantitative sampling tube provided in accordance with the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-2, a preferred embodiment of the present invention is shown.
The closed sampling device comprises a closed product tank 100 filled with liquid, wherein a backflow channel 300 and a liquid taking channel 200 are arranged on the product tank 100, a backflow valve 301 is arranged on the backflow channel 300, a sampling pump 201 is arranged on the liquid taking channel 200, a sampling valve 202 is arranged on one side, away from the product tank 100, of the sampling pump 201, and a sampling bottle 500 is connected between the backflow valve 301 and the sampling valve 202; when the sampling is needed, the sampling valve 202 and the reflux valve 301 are opened, the sampling pump 201 is started, the sampling pump 201 extracts the liquid from the product tank 100, and the extracted liquid flows into the sampling bottle 500 through the sampling valve 202.
After the liquid taking channel 200 passes through the sampling valve 202, two paths are formed, wherein one path is a detection path provided with a detection and analysis instrument 402, and the detection path is communicated with the return channel 300; the other is a quantitative passage provided with a quantitative sampling tube 401; the quantitative passage is connected and communicated with the sampling bottle 500 through a drainage tube 405;
the liquid flowing to the detection passage is detected by the detection and analysis instrument 402 and then recovered to the product tank 100 through the return passage 300; after the liquid flowing to the quantitative passage enters the quantitative sampling tube 401, it enters the sampling bottle 500 through the drainage tube 405. Like this, before taking out the liquid, the analysis by test instrument 402 carries out preliminary analysis by detection to a part of liquid in advance, if the product testing result meets the requirements, retrieves promptly to product jar 100, if need further quantitative analysis, a part of liquid flows into quantitative sampling tube 401 and carries out the ration back, collects to sampling bottle 500, takes the further quantitative analysis through quantitative liquid in sampling bottle 500 again, has improved work efficiency, also prevents the waste of product.
The two ends of the quantitative sampling tube 401 are provided with pneumatic switch valves, the first pneumatic switch valve 403 far away from the sampling valve 202 is closed, the second pneumatic switch valve 404 close to the sampling valve 202 is opened, liquid enters the quantitative sampling tube 401 through the second pneumatic switch valve 404, and when the quantitative sampling tube 401 is filled with the liquid, the second pneumatic switch valve 404 is closed to obtain the liquid with the set quantity. The quantitative sampling tube 401 has a fixed volume, so that the operation is simple, convenient and quick.
Outlet channels are arranged on the first pneumatic switch valve 403 and the second pneumatic switch valve 404, a return pipe 406 is connected to the outlet channel of the first pneumatic switch valve 403, a first outlet valve 4031 is arranged on the return pipe 406, a drainage pipe 405 is connected to the outlet channel of the second pneumatic switch valve 404, a second outlet valve 4041 is arranged on the drainage pipe 405, the first outlet valve 4031 and the second outlet valve 4041 are opened, and liquid in the quantitative sampling pipe 401 flows out of the second outlet valve 4041 and enters the sampling bottle 500; the end of the return tube 406 is connected to the sample bottle 500, and when the sample bottle 500 is filled with liquid, the excess liquid is returned through the return tube 406 in the direction of the medium flow 600 for recovery.
The liquid in the quantitative sampling tube 401 flows into the sampling bottle 500 through the second outlet valve 4041, and the liquid in the sampling bottle 500 can be recovered through the return tube 406, so that the waste is reduced.
A third outlet valve is arranged above the first pneumatic switch valve 403, the quantitative sampling tube 401, the return tube 406 and the return channel 300 are communicated with each other through pipelines, and liquid in the quantitative sampling tube 401 and the return tube 406 can flow out through the third outlet valve and enter the return channel 300. The pipelines are mutually communicated, so that the flow direction of liquid in the pipelines can be conveniently controlled, redundant liquid is recovered, and the waste is reduced.
The return channel 300 is provided at an end thereof remote from the product tank 100 with a flow sensor 302 for detecting the amount of liquid recovered through the return channel 300, so that the amount of recovered liquid can be easily known.
One side that the product jar 100 was kept away from to the backwash valve is equipped with the pressure sensor 303 that is used for detecting and adjusts the atmospheric pressure in the whole device, can detect the atmospheric pressure of whole device in real time, if atmospheric pressure changes too big, can in time adjust, the circulation of the interior liquid of pipeline of being convenient for.
The end of the return channel 300 away from the product tank 100 is provided with a temperature sensor 304 for detecting the temperature of the whole device environment, so that the temperature of the whole device environment can be detected in real time, and the influence on the properties of the liquid caused by overhigh or overlow temperature can be prevented.
On the return passage 300, a flow sensor 302, a pressure sensor 303 and a temperature sensor 304 are arranged in sequence from the near to the far direction from the product tank 100, which is convenient for management and operation.
One end that product jar 100 was kept away from to sampling valve 202 is equipped with the PH acid-base meter that detects the acidity of liquid, and liquid flows out the back from sampling valve 202, and the PH acid-base meter that flows through detects, if the pH value of liquid meets the requirements, can carry out operation on next step, if not meet the requirements, can in time close sampling valve 202 and stop the sample, improves work efficiency, reduces the waste of liquid.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Airtight sampling device, its characterized in that, including the inclosed product jar that is equipped with liquid, be equipped with return channel on the product jar and get the liquid passageway, be equipped with the backflow valve on the return channel, it is equipped with the sample pump on the liquid passageway to get, the sample pump is kept away from one side of product jar is equipped with the sample valve, the backflow valve with be connected with the sample bottle between the sample valve.
2. The closed sampling device according to claim 1, wherein the liquid taking channel forms two paths after passing through the sampling valve, one of the two paths is a detection path provided with a detection and analysis instrument, and the detection path is connected and communicated with the return channel; the other is a quantitative passage provided with a quantitative sampling tube; the quantitative passage is connected and communicated with the sampling bottle through a drainage tube;
after the liquid flowing to the detection passage is detected by the detection and analysis instrument, the liquid is recovered to the product tank through the return passage; and after the liquid flowing to the quantitative passage enters the quantitative sampling tube, the liquid enters the sampling bottle through the drainage tube.
3. The closed sampling device according to claim 2, wherein the quantitative sampling tube is provided with pneumatic switch valves at both ends, and the pneumatic switch valves comprise a first pneumatic switch valve far away from the sampling valve and a second pneumatic switch valve close to the sampling valve.
4. The closed sampling device according to claim 3, wherein the first pneumatic switch valve and the second pneumatic switch valve are provided with outlet channels, the outlet channel of the first pneumatic switch valve is connected with a return pipe, the return pipe is provided with a first outlet valve, the outlet channel of the second pneumatic switch valve is connected with the drainage pipe, the drainage pipe is provided with a second outlet valve, the first outlet valve and the second outlet valve are opened, and the liquid of the quantitative sampling pipe flows out from the second outlet valve and enters the sampling bottle; the tail end of the backflow pipe is connected and communicated with the sampling bottle, and when the sampling bottle is filled with liquid, the redundant liquid is recycled through the backflow pipe.
5. The closed sampling device according to claim 4, wherein a third outlet valve is provided above the first pneumatic switch valve, and the quantitative sampling tube, the return tube and the return channel are connected to each other via a pipeline, and the liquids in the quantitative sampling tube and the return tube can flow out through the third outlet valve and enter the return channel.
6. The closed sampling device according to any one of claims 1 to 5, wherein the return channel is provided with a flow sensor at an end thereof remote from the product tank for detecting the amount of liquid recovered through the return channel.
7. The closed sampling device according to claim 6, wherein the side of the return valve remote from the product tank is provided with a pressure sensor for detecting and regulating the air pressure in the entire device.
8. The closed sampling device according to claim 7, wherein the end of the return channel remote from the product tank is provided with a temperature sensor for detecting the temperature of the environment of the entire device.
9. The closed sampling device according to claim 8, wherein the flow sensor, the pressure sensor and the temperature sensor are arranged in sequence on the return channel from the near to the far direction of the product tank.
10. The closed sampling device according to any one of claims 1 to 5, wherein a pH meter for measuring the acidity of the liquid is provided at an end of the sampling valve remote from the product tank, and the liquid flowing out of the sampling valve passes through the pH meter for pH measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122870487.7U CN216955303U (en) | 2021-11-22 | 2021-11-22 | Closed sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122870487.7U CN216955303U (en) | 2021-11-22 | 2021-11-22 | Closed sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216955303U true CN216955303U (en) | 2022-07-12 |
Family
ID=82304536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122870487.7U Active CN216955303U (en) | 2021-11-22 | 2021-11-22 | Closed sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216955303U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166576A (en) * | 2021-11-22 | 2022-03-11 | 深圳市奥图威尔科技有限公司 | Closed sampling device capable of quantitatively sampling |
| CN118641288A (en) * | 2024-08-12 | 2024-09-13 | 清河电子科技(山东)有限责任公司 | Liquid sampling device and method of using the same |
-
2021
- 2021-11-22 CN CN202122870487.7U patent/CN216955303U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166576A (en) * | 2021-11-22 | 2022-03-11 | 深圳市奥图威尔科技有限公司 | Closed sampling device capable of quantitatively sampling |
| CN118641288A (en) * | 2024-08-12 | 2024-09-13 | 清河电子科技(山东)有限责任公司 | Liquid sampling device and method of using the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216955303U (en) | Closed sampling device | |
| US7472615B2 (en) | Portable insertable probe assembly | |
| US5361643A (en) | LPG sampling system | |
| US7874221B1 (en) | Devices for obtaining cylinder samples of natural gas or process gas, and methods therefore | |
| CN105388309B (en) | The automatic quick determination method of trace iron ions and system and application in Power Plant Water Vapor | |
| CN101089587A (en) | A multi-branch gas sampling tube | |
| US7617745B1 (en) | Portable insertable probe assembly | |
| US7481125B2 (en) | Devices for obtaining cylinder samples of natural gas or process gas, and methods therefore | |
| CN103471874A (en) | Automatic quantitative sampling device for barreled steam turbine oil | |
| CN106908287B (en) | Pressure-balancing gas collection device and method | |
| CN102928326B (en) | Device and method for testing permeability of organic gases to films | |
| CN112924249B (en) | Sampling and injecting device and method for carbon isotope analysis of slurry gas | |
| CN202182834U (en) | Liquid sampling and analyzing device | |
| RU40391U1 (en) | Sampler POTOK-1 | |
| CN107192786B (en) | The enrichment preparation facilities and its method of gas in a kind of water body | |
| CN107589101B (en) | Online oily sewage detection device based on ultraviolet fluorescence method | |
| CN203732328U (en) | Sampling device capable of extracting gas sample from negative pressure pipeline | |
| CN112946195B (en) | Multi-element thermal fluid residual oxygen detection device | |
| CN204330675U (en) | The combined apparatus of a kind of two-phase laminar flow microchip and inductivity coupled plasma mass spectrometry | |
| CN107957481B (en) | Hydrogen sulfide concentration detection device | |
| CN103852351A (en) | Sampling device and sampling method for pumping gas sample in self-negative-pressure pipeline | |
| CN208236410U (en) | A kind of well mouth of oil well hydrogen sulfide enclosed sampling and detection device | |
| EP4028743B1 (en) | Automated hydrogen sulfide sampler | |
| RU2755104C1 (en) | Device for selecting hydrocarbon liquid without release of gas to atmosphere | |
| US11846573B2 (en) | Method and system for hydrocarbon sampling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |