CN209820870U - Multi-temperature-section multi-path atmospheric sampling device - Google Patents
Multi-temperature-section multi-path atmospheric sampling device Download PDFInfo
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- CN209820870U CN209820870U CN201822279101.3U CN201822279101U CN209820870U CN 209820870 U CN209820870 U CN 209820870U CN 201822279101 U CN201822279101 U CN 201822279101U CN 209820870 U CN209820870 U CN 209820870U
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- bottle container
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- semiconductor refrigeration
- absorption
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- 238000005070 sampling Methods 0.000 title claims abstract description 72
- 238000010521 absorption reaction Methods 0.000 claims abstract description 144
- 239000004065 semiconductor Substances 0.000 claims abstract description 60
- 238000005057 refrigeration Methods 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 44
- 238000003860 storage Methods 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 abstract description 15
- 239000012774 insulation material Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 15
- 239000002250 absorbent Substances 0.000 description 11
- 230000002745 absorbent Effects 0.000 description 11
- 239000003463 adsorbent Substances 0.000 description 11
- 239000003344 environmental pollutant Substances 0.000 description 10
- 231100000719 pollutant Toxicity 0.000 description 10
- 238000000605 extraction Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000000356 contaminant Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- BULVZWIRKLYCBC-UHFFFAOYSA-N phorate Chemical compound CCOP(=S)(OCC)SCSCC BULVZWIRKLYCBC-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003189 isokinetic effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a multi-temperature section multichannel atmospheric sampling device, its absorption bottle module includes the absorption bottle container, temperature control device and absorption bottle, the lateral wall of absorption bottle container is insulation material, the absorption bottle is equipped with in the absorption bottle container, absorption bottle container bottom is open structure, temperature control device includes temperature control panel and a plurality of semiconductor refrigeration piece, the temperature control panel is connected on the open structure of absorption bottle container bottom sealedly, and the temperature control panel is equipped with the recess, be equipped with a plurality of logical grooves that are used for fixing the semiconductor refrigeration piece in the recess, the semiconductor refrigeration piece is arranged in logical groove, and one side of semiconductor refrigeration piece is located the absorption bottle container, the other side is located outside the absorption bottle container; the controller controls the semiconductor refrigerating sheet to heat or refrigerate according to the temperature in the absorption bottle container detected by the temperature sensor. The utility model relates to an atmospheric sampling device that can let absorption liquid be in and carry out the sampling under the different temperatures simultaneously.
Description
Technical Field
The utility model relates to an atmosphere sampling field especially relates to an atmosphere sampling device that can let absorption liquid be in and carry out the sampling under the different temperatures simultaneously.
Background
Atmospheric sampling is the process of collecting samples of pollutants or contaminated air in the atmosphere. There are two types of in-situ sampling methods: one is to make a large amount of air pass through a liquid absorbent or a solid adsorbent to enrich pollutants with low concentration in the atmosphere, such as an air extraction method and a filter membrane method. Another type is to collect the air containing the contaminants with containers (glass bottles, plastic bags, etc.). The former measures the average concentration of the pollutants in the atmosphere within the sampling time; the latter measured instantaneous concentrations or average concentrations over a short period of time. The sampling mode is determined according to the purpose of sampling and the field situation. The sample should be representative. The sampling efficiency is high, the operation is simple and convenient, and the subsequent analysis and measurement are convenient to obtain reliable basic data of atmospheric pollution. Samples of atmospheric pollutants or contaminated air are collected in order to obtain basic data on atmospheric pollution.
Atmospheric sampling is an important step of atmospheric environment monitoring, and has a great reliability relation to monitoring data. Methods for collecting atmospheric samples mainly include two types: one is to make a large amount of air pass through a liquid absorbent or a solid adsorbent to absorb or retain pollutants, and enrich the original pollutants with lower concentration in the atmosphere, such as an air extraction method and a filter membrane method. The result of measurements with this type of method is the average concentration of the contaminants in the atmosphere over the sampling time. Another type is to use containers (glass bottles, plastic bags, rubber bladders, syringes, etc.) to collect air containing contaminants. Such methods are applicable in the following cases: the concentration of pollutants in the atmosphere is high; or the sensitivity of the determination method is higher; contaminated gases and vapors that are not readily absorbed by liquid absorbents or solid adsorbents. The result of this measurement is the instantaneous concentration or the average concentration in a short time of the pollutants in the atmosphere. In addition, there are cryogenic freezing methods that can be used to collect volatile gases and vapors, such as lead alkyls. The liquid absorbent in the sampler is mainly used for absorbing gaseous and vapor substances. Commonly used absorbents are: water, aqueous compound solutions, organic solvents, and the like. The absorbent must be capable of reacting with the contaminant rapidly or dissolving the contaminant rapidly and facilitating the analytical procedure. Hydrogen fluoride and hydrogen chloride in the air can be used as absorbent; the sulfur dioxide can be sodium tetrachloromercuric oxide as an absorbent; organophosphorus pesticides such as phorate (3911) and systematic phosphorus (1059) can be absorbed by 5% methanol. The solid adsorbent includes granular adsorbent and fibrous adsorbent. The commonly used granular adsorbents include silica gel, ceramic and the like, and are used for sampling gaseous state, steam state and particulate matters. The fibrous adsorbent comprises filter paper, a filter membrane, absorbent cotton, glass wool and the like, and the adsorption effect is mainly physical retention and is used for collecting particulate matters. Sometimes, the adsorbent is first impregnated with a chemical reagent to cause the pollutant to chemically react with the adsorbent to be adsorbed, and the adsorbent is mainly used for collecting gaseous or vapor pollutants.
The atmospheric sampling method is to select a proper sampling mode according to the purpose and the field situation of sampling. Such as continuous or instantaneous sampling, fixed-point sampling or flow sampling on the ground, air sampling by balloons and airplanes, environmental sampling, indoor sampling, pollution source sampling and the like. The sampling purpose and the sampling mode are different, and the sampling method and the sampler are also different. For example, the sampling of the particles in the chimney can be realized by selecting a proper position to punch according to the shape and height of the chimney, extending the collector of the sampler into the hole and performing air extraction and collection at the same power speed. This method is called isokinetic sampling.
The samples collected for atmospheric sampling should be representative. The sampling efficiency is high, the operation is simple and convenient, and the subsequent chemical analysis and measurement are convenient. Representative factors affecting the sample are the efficiency of the sampler and the absorbent, the location of the sampling point and the interference of the sampler with the air flow.
In recent years, an atmospheric sampling technique has been combined with an analytical test technique to constitute a device capable of continuously and automatically sampling, analyzing, measuring, and recording the measured results. Such devices can be monitored directly on site and are known as monitoring analyzers.
The atmosphere sampler plays a good role in detecting harmful gases in air and environment. With the continuous progress of science and technology, the air sampler also continuously pushes out new products, such as: products such as intelligent atmosphere sample thief, explosion-proof atmosphere sample thief, two gas circuits atmosphere sample thief, greatly enriched the classification of atmosphere sample thief.
In the field of atmospheric sampling, in different areas, the temperature difference of the areas may be relatively large, for example, in a cold climate in the winter in the north or in a hot climate in the summer in the south, the sampling device is affected by low temperature or high temperature, which is not favorable for the absorption liquid in the absorption bottle to optimally absorb the collected gas, and directly results in the accuracy of the subsequent chemical analysis. Meanwhile, in the unattended multi-bin time-sharing automatic sampling process, the absorption liquid in the absorption bottle which needs to be stored and is sampled can make the absorbed target chemical substances, wherein some of the absorbed target chemical substances are volatilized again to the environment at a higher speed if the absorption liquid is at a high temperature, and the accuracy of the subsequent chemical analysis result is also influenced.
To achieve optimal absorption of the liquid in the absorption flask, the air temperature inside the sampling device needs to be controlled and, in addition, a constant air flow into the absorption flask has to be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can let the absorption liquid be in the atmospheric sampling device that samples under the different temperatures simultaneously.
In order to realize the purpose, the utility model provides a technical scheme does: the utility model provides a multichannel atmosphere sampling device of multiple temperature section, includes:
the sampling inner box comprises a box body and an upper cover which can be installed in a sealing mode, and the box body and the upper cover are made of heat-insulating materials;
the absorption bottle module comprises an absorption bottle container, a temperature control device and an absorption bottle, wherein the side wall of the absorption bottle container is made of heat insulation materials, the absorption bottle is arranged in the absorption bottle container, the bottom of the absorption bottle container is of an open structure, the temperature control device comprises a temperature control plate and a plurality of semiconductor refrigeration sheets, the temperature control plate is connected to the open structure at the bottom of the absorption bottle container in a sealing mode, a groove is formed in the temperature control plate, a plurality of through grooves used for fixing the semiconductor refrigeration sheets are formed in the groove, the semiconductor refrigeration sheets are arranged in the through grooves, one surface of each semiconductor refrigeration sheet is located in the absorption bottle container, and the other surface of each semiconductor refrigeration sheet is located outside the absorption bottle container;
the control system comprises a controller and a temperature sensor, a probe of the temperature sensor is arranged in the absorption bottle container, and the controller controls the semiconductor refrigerating sheet to heat or refrigerate according to the temperature in the absorption bottle container detected by the temperature sensor.
Part of the cold surface of the semiconductor refrigeration sheet is positioned in the absorption bottle container, and the hot surface of the semiconductor refrigeration sheet is positioned outside the absorption bottle container; and part of the hot surface of the semiconductor refrigeration sheet is positioned in the absorption bottle container, and the cold surface of the semiconductor refrigeration sheet is positioned outside the absorption bottle container.
The absorption bottle module further comprises an absorption bottle support, the absorption bottle support is arranged in the box body and is provided with a groove for fixing the absorption bottle container, and the absorption bottle container is fixedly placed in the groove.
The space between the absorption bottle bracket and the bottom of the box body is a water storage tank.
And the inner wall of the groove is provided with a sealing ring which is used for preventing water in the water storage groove from overflowing towards the upper part of the absorption bottle bracket.
The water storage tank is also provided with a water inlet and a water outlet, and water in the water storage tank is cooled by the circulation formed between the water inlet and the water outlet and an external water source.
The absorption bottle container is filled with water, and the semiconductor refrigeration piece heats or refrigerates the absorption bottle container through the water.
An air nozzle group used for communicating the inside and the outside of the sampling inner box is also arranged, and the air nozzle group is arranged on the upper cover.
And each absorption bottle is correspondingly provided with an air extraction device, and the air extraction device is also connected with the controller.
And each air extraction device is correspondingly provided with a gas flow sensor, and the flow sensors perform feedback control on the air extraction devices.
Compared with the prior art, because in the utility model discloses among the multichannel atmosphere sampling device of multiple temperature section, absorption bottle module includes absorption bottle container, temperature control device and absorption bottle, the lateral wall of absorption bottle container is insulation material, be equipped with the absorption bottle in the absorption bottle container, absorption bottle container bottom is open structure, temperature control device includes temperature control board and a plurality of semiconductor refrigeration piece, temperature control board connect sealingly in the open structure of absorption bottle container bottom, and temperature control board is equipped with the recess, be equipped with a plurality of logical grooves that are used for fixing the semiconductor refrigeration piece in the recess, the semiconductor refrigeration piece is arranged in logical groove, and one side of semiconductor refrigeration piece is located in the absorption bottle container, and the other side is located outside the absorption bottle container; therefore, the temperature of the absorption liquid in different absorption bottles in the absorption bottle module can be independently controlled, and different absorption bottles are in a plurality of temperature sections for sampling.
The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.
Drawings
Fig. 1 is a schematic diagram of an embodiment of the multi-temperature-range multi-path atmospheric sampling device of the present invention.
FIG. 2 is a schematic diagram of an embodiment of a temperature control device of the multi-temperature-range multi-channel atmospheric sampling device shown in FIG. 1.
FIG. 3 is a schematic view of one embodiment of an absorber vial holder of the multi-temperature-stage multi-channel atmospheric sampling device shown in FIG. 1.
Detailed Description
Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout. As described above, as shown in fig. 1 to 3, an embodiment of the present invention provides a multi-temperature-range multi-path atmospheric sampling device 100, including:
the sampling device comprises an inner sampling box 1, wherein the inner sampling box 1 comprises a box body 11 and an upper cover 12 which can be installed in a sealing mode, the box body 11 and the upper cover 12 are both made of heat insulation materials, and an outer shell (not shown in the figure) is coated outside the inner sampling box 1;
the absorption bottle module 2 comprises an absorption bottle container 23, a temperature control device 25 and an absorption bottle 24, wherein the side wall of the absorption bottle container 23 is made of a heat insulation material, the absorption bottle 24 is arranged in the absorption bottle container 23, the bottom of the absorption bottle container 23 is of an open structure, specifically, the absorption bottle container 23 is of a cylindrical structure, so that the bottom of the absorption bottle container 23 is of a circular open structure, the temperature control device 25 comprises a temperature control plate 251 and four semiconductor chilling plates 252, the temperature control plate 251 is hermetically connected to the circular open structure at the bottom of the absorption bottle container 23, the temperature control plate 251 is provided with a groove 253, four through grooves 254 for fixing the semiconductor chilling plates 252 are arranged in the groove 253, the through grooves 254 penetrate through the upper surface and the lower surface of the temperature control plate 251, and the semiconductor chilling plates 252 are arranged in the through grooves 254, one surface of the semiconductor refrigeration sheet 252 is positioned in the absorption bottle container 23, and the other surface of the semiconductor refrigeration sheet is positioned outside the absorption bottle container 23; it should be noted that the number of the semiconductor cooling fins 252 is not limited to four, and may be any one of 2 to 6 in a normal case.
The control system comprises a controller and a temperature sensor, a probe of the temperature sensor is arranged in the absorption bottle container 23, and the controller controls the semiconductor refrigeration piece 252 to heat or refrigerate according to the temperature in the absorption bottle container 23 detected by the temperature sensor. The temperature in each absorption bottle container 23 can be independently regulated and controlled through the control system, and the device can sample absorption liquid of different absorption bottles 24 in the same sampling inner box 1 at different temperatures when in work; alternatively, the temperature of the absorbent in the absorption bottle 24 may be increased or decreased according to a predetermined program, and the sampling condition of the absorbent may be detected. It should be noted that the working principle of each part included in the control system is a technical solution known to those skilled in the art, and is not described herein again.
In one embodiment, a part of the semiconductor refrigeration sheets 252 are located in the absorption bottle container 23 on the cold side, and are located outside the absorption bottle container 23 on the hot side; part of the hot surface of the semiconductor refrigeration sheet 252 is located in the absorption bottle container 23, and the cold surface is located outside the absorption bottle container 23. Namely: the four semiconductor refrigeration pieces 252 are arranged in a matrix and divided into two groups, two semiconductor refrigeration pieces 252 on the same diagonal line are taken as one group, and in the two groups of semiconductor refrigeration pieces 252, the first group is that a hot surface is positioned in the absorption bottle container 23, and a cold surface is positioned outside the absorption bottle container 23; the second group is that the cold surface is positioned in the absorption bottle container 23, and the hot surface is positioned outside the absorption bottle container 23. The two semiconductor chilling plates 252 located on the diagonal line are grouped in order to uniformly heat or chill the absorption bottle container 23. When the semiconductor refrigeration pieces 252 work, only one group of the semiconductor refrigeration pieces 252 is in a working state under normal conditions, that is, the absorption bottle container 23 is in a heating state or a refrigeration state. In addition, exceptional situations are included, for example, when the absorption bottle container 23 needs to be rapidly cooled when being heated, the heating operation of the first group of semiconductor chilling plates can be stopped, and the chilling operation of the second group of semiconductor chilling plates can be started; when the absorption bottle container 23 is refrigerated, the temperature of the absorption bottle container needs to be raised quickly, the refrigeration work of the first group of semiconductor refrigeration pieces can be stopped, and the heating work of the second group of semiconductor refrigeration pieces can be started.
As in the above embodiments, the semiconductor cooling fins 252 may be arranged in various ways, not necessarily in a matrix, but in a circular arrangement, a triangular arrangement, or a polygonal arrangement.
In one embodiment, as shown in fig. 1 and 3, the absorption bottle module 2 further includes an absorption bottle holder 21, the absorption bottle holder 21 is disposed in the box 11 and is provided with a groove 211 for fixing the absorption bottle container 23, and the absorption bottle container 23 is fixedly placed in the groove 211.
As shown in FIG. 1, the space between the absorption bottle holder 21 and the bottom of the tank 11 is a reservoir 22.
As shown in fig. 3, a sealing ring 212 is disposed on the inner wall of the tank 211, and the sealing ring 212 is used for preventing water in the reservoir 22 from overflowing to the upper part of the absorption bottle holder 21.
In one embodiment, the water storage tank 22 is further provided with a water inlet (not shown) and a water outlet (not shown), and the water in the water storage tank 22 is cooled by circulation between the water inlet and the water outlet and an external water source, because one surface of the semiconductor refrigeration sheet 252 is located at the upper part of the water storage tank 22, the water in the water storage tank 22 needs to be filled fully enough to contact the semiconductor refrigeration sheet 252, and the semiconductor refrigeration sheet 252 needs to be provided with a waterproof layer with good heat conduction performance, so that the semiconductor refrigeration sheet 252 can keep a continuous and stable heating or refrigeration function through the water in the water storage tank 22.
In one embodiment, the absorption bottle container 23 contains water, and the semiconductor refrigeration sheet 252 heats or refrigerates the absorption bottle container 23 through the water. The specific heat ratio of water is large, water is added as a heat transfer medium, heating is convenient, in addition, the temperature change in the absorption bottle container 23 tends to be stable, and the temperature of the absorption liquid in the absorption bottle 24 is further kept stable.
In one embodiment, an air nozzle set 5 for communicating the inside and the outside of the sampling inner box 11 is further provided, and the air nozzle set 5 is arranged on the upper cover 12.
In one embodiment, a suction device is provided for each absorption bottle 24, and the suction device is further connected to the controller.
In one embodiment, each air extractor is provided with a gas flow sensor, and the flow sensor performs feedback control on the air extractor.
With reference to fig. 1, 2 and 3, in the multi-temperature-range multi-path atmospheric sampling device of the present invention, the absorption bottle module 2 includes an absorption bottle container 23, a temperature control device 25 and an absorption bottle 24, the sidewall of the absorption bottle container 23 is made of a thermal insulation material, the absorption bottle 24 is contained in the absorption bottle container 23, the bottom of the absorption bottle container 23 is of an open structure, specifically, the absorption bottle container 23 is of a cylindrical structure, so the bottom of the absorption bottle container 23 is of a circular open structure, the temperature control device 25 includes a temperature control plate 251 and four semiconductor refrigeration sheets 252, the temperature control plate 251 is hermetically connected to the circular open structure at the bottom of the absorption bottle container 23, and the temperature control plate 251 is provided with a groove 253, four through grooves 254 for fixing the semiconductor refrigeration sheets 252 are provided in the groove 253, the through grooves 254 run through the upper surface and the lower surface of the temperature control plate 251, the semiconductor refrigeration piece 252 is arranged in the through groove 254, one surface of the semiconductor refrigeration piece 252 is positioned in the absorption bottle container 23, and the other surface of the semiconductor refrigeration piece 252 is positioned outside the absorption bottle container 23; therefore, the temperatures of the absorption liquids in the different absorption bottles in the absorption bottle module 2 can be independently controlled, and the different absorption bottles are in a plurality of temperature sections for sampling.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (10)
1. The utility model provides a multichannel atmosphere sampling device of multiple temperature section which characterized in that includes:
the sampling inner box comprises a box body and an upper cover which can be installed in a sealing mode, and the box body and the upper cover are made of heat-insulating materials;
the absorption bottle module comprises an absorption bottle container, a temperature control device and an absorption bottle, wherein the absorption bottle is arranged in the absorption bottle container, the bottom of the absorption bottle container is of an open structure, the temperature control device comprises a temperature control plate and a plurality of semiconductor refrigeration sheets, the temperature control plate is connected to the open structure at the bottom of the absorption bottle container in a sealing mode, a groove is formed in the temperature control plate, a plurality of through grooves used for fixing the semiconductor refrigeration sheets are formed in the groove, the semiconductor refrigeration sheets are arranged in the through grooves, one surface of each semiconductor refrigeration sheet is located in the absorption bottle container, and the other surface of each semiconductor refrigeration sheet is located outside the absorption bottle container;
the control system comprises a controller and a temperature sensor, a probe of the temperature sensor is arranged in the absorption bottle container, and the controller controls the semiconductor refrigerating sheet to heat or refrigerate according to the temperature in the absorption bottle container detected by the temperature sensor.
2. The multi-temperature section multi-path atmospheric sampling device according to claim 1, wherein a portion of the semiconductor chilling plates have their cold side located inside the absorber bottle container and their hot side located outside the absorber bottle container; and part of the hot surface of the semiconductor refrigeration sheet is positioned in the absorption bottle container, and the cold surface of the semiconductor refrigeration sheet is positioned outside the absorption bottle container.
3. The multi-temperature-section multi-path atmospheric sampling device according to claim 1, wherein the absorption bottle module further comprises an absorption bottle support, the absorption bottle support is disposed in the box body and provided with a groove for fixing the absorption bottle container, and the absorption bottle container is fixedly placed in the groove.
4. The multi-temperature block, multi-channel atmospheric sampling device of claim 3, wherein the space between the absorber bottle holder and the bottom of the housing is a reservoir.
5. The multi-temperature section multi-channel atmospheric sampling device of claim 4, wherein the inner wall of the tank is provided with a sealing ring for preventing water in the water storage tank from overflowing to the upper part of the absorption bottle bracket.
6. The multi-temperature section multi-channel atmosphere sampling device according to claim 4, wherein the water storage tank is further provided with a water inlet and a water outlet, and water in the water storage tank is cooled by the water inlet and the water outlet circulating with an external water source.
7. The multi-temperature-range multi-path atmospheric sampling device according to any one of claims 1 to 5, wherein the absorption bottle container contains water, and the semiconductor refrigeration sheet heats or refrigerates the absorption bottle container through the water.
8. The multi-temperature-section multi-path atmospheric sampling device according to claim 1, further comprising an air nozzle set for communicating the inside and the outside of the sampling inner box, wherein the air nozzle set is disposed on the upper cover.
9. The multi-temperature section multi-channel atmospheric sampling device according to claim 1, wherein an air-extracting device is provided for each absorption bottle, and the air-extracting device is further connected to the controller.
10. The multi-temperature section multi-channel atmospheric sampling device according to claim 9, wherein each air pumping device is provided with a gas flow sensor, and the flow sensor performs feedback control on the air pumping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822279101.3U CN209820870U (en) | 2018-12-31 | 2018-12-31 | Multi-temperature-section multi-path atmospheric sampling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822279101.3U CN209820870U (en) | 2018-12-31 | 2018-12-31 | Multi-temperature-section multi-path atmospheric sampling device |
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| CN209820870U true CN209820870U (en) | 2019-12-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696330A (en) * | 2018-12-31 | 2019-04-30 | 华测检测认证集团股份有限公司 | Multiple temperature sections multichannel atmospheric sampling equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696330A (en) * | 2018-12-31 | 2019-04-30 | 华测检测认证集团股份有限公司 | Multiple temperature sections multichannel atmospheric sampling equipment |
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