CN202471472U - Air sampling device being suitable for severe environment - Google Patents
Air sampling device being suitable for severe environment Download PDFInfo
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- CN202471472U CN202471472U CN2012200644823U CN201220064482U CN202471472U CN 202471472 U CN202471472 U CN 202471472U CN 2012200644823 U CN2012200644823 U CN 2012200644823U CN 201220064482 U CN201220064482 U CN 201220064482U CN 202471472 U CN202471472 U CN 202471472U
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- sampling
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- sampling channel
- air exhaust
- bleed
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- 238000005070 sampling Methods 0.000 title claims abstract description 100
- 229920002943 EPDM rubber Polymers 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 14
- 230000001276 controlling effect Effects 0.000 description 9
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses an air sampling device being suitable for a severe environment, and the air sampling device comprises sampling passages which are respectively used for installing a sampling pipe, an air exhaust passage, an air exhaust pump and an air exhaust port, and the air sampling device is characterized in that more than two sampling passages are adopted, and each sampling passage is connected with the air exhaust passage; the air exhaust passage is connected with the air exhaust port through the air exhaust pump; each sampling passage is respectively provided with a valve, the valve is respectively connected with a single chip microcomputer, and the valve is controlled by the single chip microcomputer to open and close; and the air exhaust pump is also connected with the single chip microcomputer, and the air exhaust pump is controlled by the single chip microcomputer to open and close. The opening and closing of multiple sampling passages are simultaneously controlled through the single chip microcomputer, the automatic operation is realized, the sampling procedures are simplified, and the efficiency is improved.
Description
Technical field
The utility model relates to a kind of air sampler, relates in particular to a kind of air sampler that is applicable under the rugged surroundings.
Background technology
On market nowadays, panoramic air sampler is seen everywhere.Make a general survey of the sampling thief characteristics of domestic majority, blanket is the detection of general environment, and its simple operation and function all have to be strengthened.The air sampler of widespread use at present is a sampling with single pipe; Mainly have following shortcoming: 1, for exceedingly odious operation place, like the baking vanish workshop, present sampling apparatus can only once be gathered a kind of gaseous sample; Need the people to be in for a long time in this abominable place, use very inconvenience; 2, be not all weather operations: the workplace is divided into the indoor and outdoors environment; Both no less importants; In order to reflect the distribution situation of outdoor environment poisonous and harmful substance under the various gas phase conditions; Often need under mal-conditions such as sleety weather, sample, present air sampler design does not fully take into account this point; 3, the consuming time and trivial operations of sampling with single pipe: multiple gases or the different time sections of when some complex environment carries out sample detecting, often need sampling the simultaneously same gas of repeatedly sampling, sampling with single pipe can't satisfy above-mentioned situation.
The utility model content
The utility model purpose: the purpose of the utility model is the deficiency to prior art, and providing a kind of can sample by multitube, is applicable to the air sampler under the rugged surroundings.
Technical scheme: the described air sampler that is applicable under the rugged surroundings of the utility model; Comprise the sampling channel, bleed-off passage, aspiration pump and the exhausr port that are used to settle sampling pipe [sampling pipe is made by national standard]; Said sampling channel is more than two, is connected with said bleed-off passage respectively; Said bleed-off passage is connected with said exhausr port through aspiration pump; Be respectively arranged with valve on the said sampling channel, said valve is connected with single-chip microcomputer respectively, through the unlatching of the said valve of Single-chip Controlling; Said aspiration pump also is connected with said single-chip microcomputer, through the unlatching of Single-chip Controlling aspiration pump.
The utility model sampling thief has plural sampling channel; Push And Release through each sampling channel valve of Single-chip Controlling; Make sampling thief form a kind of stabilisation system easy and simple to handle; For having improved safe reliability at the rugged surroundings down-sampling, and can sample simultaneously multiple gases or the same gas of multitube multiple sampling.Comparative optimization ground, sampling channel are 4, can satisfy general operational requirement, also are unlikely to make structure complicated especially.
Anti-aging in order to improve, cold-resistant, high temperature resistant, decay resistance, make air sampler can be for a long time can both operate as normal under cold, heat, acid or alkali environment, said sampling channel, bleed-off passage, aspiration pump and exhausr port all are integrated in the ethylene-propylene-diene rubber shell.Ethylene-propylene-diene rubber belongs to macromolecular material, can protect internal circuit well as sheathing material, and providing can be in the possibility of rugged surroundings down-sampling.
Airshed through each sampling pipe when bleeding equates, the sampling pipe lower port in each sampling channel and the import of said bleed-off passage are apart from equating.
Firm for what sampling pipe was assigned, the height of said sampling channel is greater than 1/3rd of sampling pipe length.
Said sampling channel internal layer is a rubber layer, and after assigning sampling pipe, it has the protective effect of damping, buffering.
Beneficial effect: the utility model is controlled the unlatching of a plurality of sampling channels simultaneously through single-chip microcomputer, realizes automation mechanized operation, thereby simplifies sampling routine, raises the efficiency; The utility model is applicable under the multiple environment that particularly relatively rugged environment down can normal sample gas for condition.The utility model utilizes the Single-chip Controlling aspiration pump: by the Single-chip Controlling relay, get electric adhesive through relay, the characteristic that dead electricity is broken off is controlled aspiration pump.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the circuit theory diagrams of Single-chip Controlling aspiration pump.
Embodiment
Be elaborated in the face of the utility model technical scheme down, but the protection domain of the utility model is not limited to said embodiment.
Embodiment:The utility model is applicable to the air sampler under the rugged surroundings, comprises the sampling channel 1, bleed-off passage 2 and the exhausr port 3 that are used to settle sampling pipe, and said sampling channel 1 is 4, is connected with said bleed-off passage 2 respectively; Said bleed-off passage 2 is connected with said exhausr port 3 through aspiration pump 4; Be respectively arranged with valve 5 on the said sampling channel 1, said valve 5 is connected with single-chip microcomputer 6 respectively, through the unlatching of the said valve 5 of single-chip microcomputer 6 controls; Said aspiration pump 4 also is connected with said single-chip microcomputer 6, through the unlatching of single-chip microcomputer 6 control aspiration pumps 4.Sampling pipe lower port in each sampling channel 1 equates with the import of said bleed-off passage 2 distance.The height of said sampling channel 1 forms a kind of stabilisation system naturally greater than 1/3rd of sampling pipe length, and is more firm in the time of can making sampling, for having improved safe reliability at the rugged surroundings down-sampling.Said sampling channel 1 internal layer is a rubber layer, and after assigning sampling pipe, it has the protective effect of damping, buffering.Said sampling channel 1, bleed-off passage 2, aspiration pump 4 and exhausr port 3 all are integrated in the ethylene-propylene-diene rubber shell 7; Characteristics such as it is anti-aging, cold-resistant, high temperature resistant, corrosion-resistant that ethylene-propylene-diene rubber has are even long-term work can both be worked in cold, heat, acid or alkali environment normally.
During concrete work, implement to sample simultaneously multiple gases through this sampling thief, when we sample four kinds of gas with various; Can in sampling channel, assign four types of sampling pipes that need, choose the place of sampling, the switch of each sampling channel valve of sampling front opening Single-chip Controlling; Configure air mass flow and sampling time, wherein the air mass flow passed through of each sampling pipe is to set 1/4th of flow, opens aspiration pump; Can begin sampling, gas gets into sampling pipe, and gas with various is by sampling pipe absorption separately; Residual gas is through the bleed-off passage exhaust, and its method for exhausting is with existing common individual air sampling thief.
Sometimes need be for the accuracy that detects at the same sampled point different time sections same gas of sampling, through this sampling thief promptly can be we implement above-mentioned sampling provide maybe, at first in sampling channel, assign the sampling pipe that needs; Set each Sampler valves switch open and the time of closing through Single-chip Controlling sampling channel valve system before the sampling, air mass flow and required altogether sampling time when regulating sampling, open aspiration pump; When the valve open of first sampling channel, all the other valves all are in closed condition, begin sampling this moment; When reaching the sampling setting-up time, when the sampling pipe sampling of first sampling channel finished, its valve was closed according to setting automatically; Sampling pipe in second sampling channel begins sampling; The rest may be inferred, finishes up to sampling, and gas is adsorbed by sampling pipe during sampling; Residual gas carries out exhaust through bleed-off passage, and its method for exhausting is with existing common individual air sampling thief.
The practical implementation of Single-chip Controlling aspiration pump:
Circuit theory (referring to Fig. 2): utilize P1.0～P1.3 mouth output high-low level, the folding of pilot relay is to realize the control to external device (ED).This device adopts JZC-23F type relay, and its control voltage is 5V.Generally to add a diode in the relay circuit at coil two of relay to absorb the back-emf that produces when relay coil cuts off the power supply, prevent to disturb.Wherein 74LS240 is eight impact dampers/bus driver (ternary, anti-phase), and its effect is to drive aspiration pump work.
As stated, although represented and explained the utility model that with reference to specific preferred embodiment it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the utility model that does not break away from the accompanying claims definition, can make various variations in form with on the details to it.
Claims (6)
1. one kind is applicable to the air sampler under the rugged surroundings, comprises the sampling channel, bleed-off passage, aspiration pump and the exhausr port that are used to settle sampling pipe, it is characterized in that: said sampling channel is more than two, is connected with said bleed-off passage respectively; Said bleed-off passage is connected with said exhausr port through aspiration pump; Be respectively arranged with valve on the said sampling channel, said valve is connected with single-chip microcomputer respectively, through the unlatching of the said valve of Single-chip Controlling; Said aspiration pump also is connected with said single-chip microcomputer, through the unlatching of Single-chip Controlling aspiration pump.
2. the air sampler that is applicable under the rugged surroundings according to claim 1 is characterized in that: said sampling channel is 4.
3. the air sampler that is applicable under the rugged surroundings according to claim 1 is characterized in that: said sampling channel, bleed-off passage, aspiration pump and exhausr port all are integrated in the ethylene-propylene-diene rubber shell.
4. the air sampler that is applicable under the rugged surroundings according to claim 1 is characterized in that: the sampling pipe lower port in each sampling channel equates with the import of said bleed-off passage distance.
5. the air sampler that is applicable under the rugged surroundings according to claim 1 is characterized in that: the height of said sampling channel is greater than 1/3rd of sampling pipe length.
6. the air sampler that is applicable under the rugged surroundings according to claim 1 is characterized in that: said sampling channel internal layer is a rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200644823U CN202471472U (en) | 2012-02-27 | 2012-02-27 | Air sampling device being suitable for severe environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200644823U CN202471472U (en) | 2012-02-27 | 2012-02-27 | Air sampling device being suitable for severe environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471472U true CN202471472U (en) | 2012-10-03 |
Family
ID=46919624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200644823U Expired - Fee Related CN202471472U (en) | 2012-02-27 | 2012-02-27 | Air sampling device being suitable for severe environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202471472U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758681A (en) * | 2016-05-03 | 2016-07-13 | 国网山东省电力公司青州市供电公司 | Gas sample collector |
| CN105842019A (en) * | 2016-05-26 | 2016-08-10 | 刘广君 | Unmanned aerial vehicle (UAV) ambient air sample acquisition and ambient air on-site qualitative detection system |
| CN106066268A (en) * | 2016-06-29 | 2016-11-02 | 北京中科中环环境应用技术研究中心 | A kind of have the many gas circuits air sampler controlling sampling functions respectively |
-
2012
- 2012-02-27 CN CN2012200644823U patent/CN202471472U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758681A (en) * | 2016-05-03 | 2016-07-13 | 国网山东省电力公司青州市供电公司 | Gas sample collector |
| CN105842019A (en) * | 2016-05-26 | 2016-08-10 | 刘广君 | Unmanned aerial vehicle (UAV) ambient air sample acquisition and ambient air on-site qualitative detection system |
| CN106066268A (en) * | 2016-06-29 | 2016-11-02 | 北京中科中环环境应用技术研究中心 | A kind of have the many gas circuits air sampler controlling sampling functions respectively |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20130227 |