CN114459833A - Sampling device and chemical system - Google Patents
Sampling device and chemical system Download PDFInfo
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- CN114459833A CN114459833A CN202210025104.2A CN202210025104A CN114459833A CN 114459833 A CN114459833 A CN 114459833A CN 202210025104 A CN202210025104 A CN 202210025104A CN 114459833 A CN114459833 A CN 114459833A
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- valve
- sample
- sampling device
- line
- temperature controller
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- 238000005070 sampling Methods 0.000 title claims abstract description 41
- 239000000126 substance Substances 0.000 title claims abstract description 18
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 13
- 238000004458 analytical method Methods 0.000 description 7
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N pentanal Chemical compound CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- 238000003109 Karl Fischer titration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- DTDMYWXTWWFLGJ-UHFFFAOYSA-N decan-4-ol Chemical compound CCCCCCC(O)CCC DTDMYWXTWWFLGJ-UHFFFAOYSA-N 0.000 description 1
- 239000001177 diphosphate Substances 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000004712 monophosphates Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4022—Concentrating samples by thermal techniques; Phase changes
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
- G05D23/1386—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for steam and liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4022—Concentrating samples by thermal techniques; Phase changes
- G01N2001/4033—Concentrating samples by thermal techniques; Phase changes sample concentrated on a cold spot, e.g. condensation or distillation
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Automation & Control Theory (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of chemical sampling, and discloses a sampling device and a chemical system, wherein the sampling device comprises a feed pipeline and a return pipeline which are respectively connected between a sampler (1) and sample storage equipment, and a temperature controller (2) which is installed on the feed pipeline and is used for controlling the temperature of a sample, wherein a first valve (K41) which is positioned at the upstream of the sampler (1) and at the downstream of the temperature controller (2) is installed on the feed pipeline, and a second valve (K42) is installed on the return pipeline. The sampling device can sample various samples, ensures that the samples are always collected in a closed environment, can change the temperature of the samples, and is convenient for workers to work.
Description
Technical Field
The invention relates to the technical field of chemical sampling, in particular to a sampling device and a chemical system.
Background
Liquid samples in the coal chemical industry and the petrochemical industry are more and common, the collection of the liquid samples is also very important in analysis, the sampling requirement is not only representative, but also factors such as safety, environmental protection and the like are considered, and the problem that how to safely and environmentally quickly take the representative samples is long-standing is solved.
At present, the traditional sampling box body has certain limitation on the collection of samples. Many samples have different physical properties (easy oxidation, large influence of temperature change and the like), and different sampling boxes need to be replaced for different samples. In particular, the temperature has a great influence on the sample, and the sample has an excessively high temperature, which not only damages the sampling device, but also poses a great threat to the working personnel and the working environment.
Disclosure of Invention
The invention aims to solve the problems that in the process of sampling chemical samples in the prior art, samples with different physical properties cannot be sampled, and particularly, samples with larger influence by temperature change are not sampled, and provides a sampling device and a chemical system.
In order to achieve the above object, an aspect of the present invention provides a sampling apparatus, including a feeding line and a return line connected between a sampler and a sample storage device, respectively, and a temperature controller installed on the feeding line and used for controlling the temperature of a sample, wherein a first valve is installed on the feeding line and located upstream of the sampler and downstream of the temperature controller, and a second valve is installed on the return line.
Optionally, a third valve located upstream of the temperature controller is installed on the feeding line, and a fourth valve located downstream of the second valve is installed on the feed back line.
Optionally, the flow direction of the medium in the temperature controller is opposite to the flow direction of the sample.
Optionally, a first medium switch and a second medium switch are respectively installed on a medium inlet pipeline and a medium outlet pipeline of the temperature controller.
Optionally, the temperature controller is a condenser.
Optionally, the sampling device comprises a branch line connected in parallel between the feed line and the return line with respect to the sampler, one end of the branch line being located downstream of the temperature controller and upstream of the first valve, and the other end thereof being located downstream of the second valve.
Optionally, a needle valve for sampling is installed on the branch line.
Optionally, a fifth valve is installed on the feeding line and located downstream of the temperature controller and upstream of the first valve, and a sixth valve is installed on the feeding line and located downstream of the second valve.
Optionally, a pressure gauge for observing the pressure of the feeding pipe is installed between the sampler and the temperature controller.
The invention provides a chemical engineering system, which comprises the sampling device.
Through the technical scheme, the invention has the following beneficial effects:
the temperature controller can change the temperature of the sample in the feeding pipeline, and the sample temperature is prevented from being too high or too low to damage the sampling device and the sampler. Meanwhile, the temperature controller can change the temperature of the sample into a preset temperature, so that the sample is convenient to collect and store, and the accuracy of the sample in chemical analysis is ensured, so that the accuracy of experimental data is improved. In addition, the first valve and the second valve are opened or closed simultaneously, so that the sampler is convenient to replace. Second, the first valve and the second valve can also control the amount of sample flow, and thus the amount of sample in the sampler.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention.
FIG. 1 is a schematic view of the connecting lines of a sampler of a sampling apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of the connecting lines of the temperature controller of the sampling apparatus according to one embodiment of the present invention.
Description of the reference numerals
The device comprises a sampler 1, a temperature controller 2, a K11 first medium switch, a K12 second medium switch, a K21 third valve, a K22 fourth valve, a K31 fifth valve, a K32 needle valve, a K33 sixth valve, a K41 first valve, a K42 second valve and a P1 pressure gauge.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1 and 2, the sampling apparatus of the present invention includes a feed line and a return line connected between a sampler 1 and a sample storage device, respectively, and a temperature controller 2 installed on the feed line and used for controlling the temperature of a sample, wherein the feed line is installed with a first valve K41 located upstream of the sampler 1 and downstream of the temperature controller 2, and the return line is installed with a second valve K42.
The temperature controller 2 can change the temperature of the sample in the feed line to avoid that the sample temperature is too high or too low to damage the sampling device and the sampler, i.e. to raise or lower the temperature of the sample. Meanwhile, the temperature controller 2 can change the temperature of the sample into a preset temperature, so that the sample is convenient to collect and store, and the accuracy of the sample in chemical analysis is ensured, so that the accuracy of experimental data is improved. In addition, the simultaneous opening or closing of the first valve K41 and the second valve K42 is for the convenience of replacing the sampler 1. Secondly, the first valve K41 and the second valve K42 can also control the flow of the sample, thereby controlling the amount of the sample collected by the sampler.
In addition, the sample can circulate between the sampler 1 and the sample storage device through the feeding line and the return line, so that the sample can circulate in a closed environment, and the sample is prevented from contacting or leaking with the external environment, so that the sample is oxidized, polluted or changed in components and content. Secondly, in the circulating process, if the sample in the sample storage device flows out too much, the sample can also flow back to the sample storage device through a return line, so that a large amount of waste of the sample is avoided. Meanwhile, if too much sample flows into the sampler 1, the sample can be returned to the sample storage device through the return pipe.
It should be noted that a in fig. 1 and 2 indicates the path of the feed line, and b in fig. 1 and 2 indicates the path of the return line.
As shown in fig. 1 and 2, the feed line of the present invention is provided with a third valve K21 located upstream of the temperature controller 2, and the return line is provided with a fourth valve K22 located downstream of the second valve K42. The third valve K21 and the fourth valve K22 are switches between the sampling device and the sample storage apparatus. That is, when the sampling device is in an idle state, the operator may close the three valve K21 and the fourth valve K22.
As shown in fig. 1 and 2, the flow direction of the medium in the temperature controller 2 in the present invention is opposite to the flow direction of the sample. That is, the temperature control medium flows in from the medium inlet line and flows out from the medium outlet line, thereby ensuring that the sample can stably and accurately change the temperature of the sample.
In addition, a first medium switch K11 and a second medium switch K12 are respectively installed on a medium inlet pipeline and a medium outlet pipeline of the temperature controller 2, and are mainly used for controlling the flow rate of the temperature medium and turning on or off.
Wherein, the temperature controller 2 in the invention is preferably a condenser. In the chemical industry field, most samples are all in high temperature state, for the convenience of operating personnel gather and store the sample and guarantee sample chemical analysis's accuracy, cool off the temperature of sample to preset temperature through the condenser.
As shown in fig. 1, the sampling apparatus of the present invention includes a branch line connected in parallel with respect to the sampler 1 between the feed line and the return line, and having one end located downstream of the temperature controller 2 and upstream of the first valve K41 and the other end located downstream of the second valve K42. When the pressure in the feed line and the return line is too high, the sampling of the sampler 1 is affected, and the damage of the sampler is more likely to be caused. However, the by-pass line has a certain pressure relief function, i.e. a part of the sample can flow back directly to the sample storage device through the by-pass line.
In addition, the branch pipeline of the invention is provided with a needle valve K32 for sampling, and an operator can directly collect a sample through the needle valve K32. In particular, the sampler 1 is mainly used for collecting and storing samples with high demand (i.e. large amount), and the samples are conveniently taken to a laboratory for chemical analysis through the sampler 1. At the same time, the needle valve K32 can also collect samples, mainly for special cases. For example, it may be desirable to collect samples and analyze them on-site, or it may be desirable to collect only a small (i.e., small) amount of sample.
As shown in fig. 1, the feeding line of the present invention is provided with a fifth valve K31 located downstream of the temperature controller 2 and upstream of the first valve K41, and the return line is provided with a sixth valve K33 located downstream of the second valve K42. The fifth valve K31 and the sixth valve K33 mainly control the opening or closing of the by-pass line.
As shown in FIG. 1, a pressure gauge P1 for observing the pressure of the feed line is arranged between the sampler 1 and the temperature controller 2. An operator observes the pressure condition in the feeding pipeline according to the pressure gauge P1, and judges whether to open the branch pipeline or not to realize certain pressure relief.
The chemical system comprises the sampling device, and the specific embodiment is as follows:
the first embodiment is as follows: in the analysis of impurities and purity and water content in the butene, the impurities and purity are subjected to chromatographic analysis, and the water content is subjected to Karl Fischer analysis. When the large steel cylinder is used for Karl Fischer water content analysis, the weighing has large mass error and heavy and inconvenient operation of the large steel cylinder, and some conversion auxiliary equipment is also needed. However, the chemical system in the invention can control the collection amount of the butylene, and can change the temperature of the butylene to ensure that the butylene is at the preset temperature.
Example two:
when the content of the catalyst in the valeraldehyde is analyzed by the propyl heptanol device, the component monophosphate of the valeraldehyde is easily oxidized into diphosphate when meeting air, so that the chemical system can be ensured to be in an absolutely closed environment during sampling, and a representative sample is collected.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the specific features in any suitable way, and the invention will not be further described in relation to the various possible combinations in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. The utility model provides a sampling device, its characterized in that, includes the inlet line and the feed back pipeline that are connected to respectively between sample thief (1) and the sample storage equipment and install temperature controller (2) on the inlet line and be used for controlling the sample temperature, install on the inlet line and be located the upstream of sample thief (1) with first valve (K41) of the low reaches of temperature controller (2), install second valve (K42) on the feed back pipeline.
2. The sampling device according to claim 1, characterized in that said feeding line is fitted with a third valve (K21) upstream of said thermostat (2), and said return line is fitted with a fourth valve (K22) downstream of said second valve (K42).
3. The sampling device according to claim 1, characterized in that the flow direction of the medium in the temperature controller (2) is opposite to the flow direction of the sample.
4. The sampling device according to claim 3, characterized in that the medium inlet line and the medium outlet line of the thermostat (2) are fitted with a first medium switch (K11) and a second medium switch (K12), respectively.
5. The sampling device according to claim 1, characterized in that the temperature controller (2) is a condenser.
6. The sampling device according to claim 1, characterized in that it comprises a by-pass line connected in parallel with respect to the sampler (1) between the feed line and the return line, with one end downstream of the thermostat (2) and upstream of the first valve (K41) and with the other end downstream of the second valve (K42).
7. The sampling device according to claim 6, characterized in that a needle valve (K32) for sampling is mounted on the branch line.
8. The sampling device according to claim 6, characterized in that said feeding line is fitted with a fifth valve (K31) downstream of said thermostat (2) and upstream of said first valve (K41), and said return line is fitted with a sixth valve (K33) downstream of said second valve (K42).
9. The sampling device according to claim 1, characterized in that a pressure gauge (P1) for observing the pressure of the feeding line is installed between the sampler (1) and the thermostat (2).
10. A chemical system, characterized in that it comprises a sampling device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025104.2A CN114459833A (en) | 2022-01-11 | 2022-01-11 | Sampling device and chemical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025104.2A CN114459833A (en) | 2022-01-11 | 2022-01-11 | Sampling device and chemical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114459833A true CN114459833A (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210025104.2A Pending CN114459833A (en) | 2022-01-11 | 2022-01-11 | Sampling device and chemical system |
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| Country | Link |
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| CN (1) | CN114459833A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202387441U (en) * | 2011-12-08 | 2012-08-22 | 神华集团有限责任公司 | Sampling device for reactor |
| FR3075383A1 (en) * | 2017-12-14 | 2019-06-21 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | DEVICE AND METHOD FOR CONTROLLING THE PURITY OF A GAS |
| CN210893823U (en) * | 2019-10-11 | 2020-06-30 | 北京石油化工工程有限公司 | Gas closed sampler |
| CN211978396U (en) * | 2020-04-27 | 2020-11-20 | 江苏科维仪表控制工程有限公司 | Closed sampler |
| CN213749247U (en) * | 2020-11-20 | 2021-07-20 | 河北晨晓工业自动化设备有限公司 | Closed sampler with flowmeter for spherical tank |
| CN214096785U (en) * | 2020-11-11 | 2021-08-31 | 中国神华煤制油化工有限公司 | Sampling bottle, sampling system and analysis system |
-
2022
- 2022-01-11 CN CN202210025104.2A patent/CN114459833A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202387441U (en) * | 2011-12-08 | 2012-08-22 | 神华集团有限责任公司 | Sampling device for reactor |
| FR3075383A1 (en) * | 2017-12-14 | 2019-06-21 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | DEVICE AND METHOD FOR CONTROLLING THE PURITY OF A GAS |
| CN210893823U (en) * | 2019-10-11 | 2020-06-30 | 北京石油化工工程有限公司 | Gas closed sampler |
| CN211978396U (en) * | 2020-04-27 | 2020-11-20 | 江苏科维仪表控制工程有限公司 | Closed sampler |
| CN214096785U (en) * | 2020-11-11 | 2021-08-31 | 中国神华煤制油化工有限公司 | Sampling bottle, sampling system and analysis system |
| CN213749247U (en) * | 2020-11-20 | 2021-07-20 | 河北晨晓工业自动化设备有限公司 | Closed sampler with flowmeter for spherical tank |
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