CN213715153U - VOCs detection device in waste gas - Google Patents
VOCs detection device in waste gas Download PDFInfo
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- CN213715153U CN213715153U CN201920168377.6U CN201920168377U CN213715153U CN 213715153 U CN213715153 U CN 213715153U CN 201920168377 U CN201920168377 U CN 201920168377U CN 213715153 U CN213715153 U CN 213715153U
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- 239000002912 waste gas Substances 0.000 title claims abstract description 52
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 title description 28
- 239000007789 gas Substances 0.000 claims abstract description 110
- 238000005070 sampling Methods 0.000 claims abstract description 41
- 238000009833 condensation Methods 0.000 claims abstract description 35
- 230000005494 condensation Effects 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 238000001179 sorption measurement Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000004458 analytical method Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
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- 230000036541 health Effects 0.000 description 1
- 239000010800 human waste Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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Abstract
An apparatus for detecting VOCs in exhaust gas, comprising: the detector, the sampling pipe, the condenser pipe, the intake pipe, advance the appearance pipe, adjustment mechanism admits air, exhaust adjustment mechanism, exhaust mechanism, the filter, vapour and liquid separator and gas receiver, adjustment mechanism admits air includes the sampling pump, first admission valve, second admission valve and third admission valve, be provided with the piston in the gas receiver, the condenser pipe includes condensation inner tube and condensation outer tube, it is provided with the sampling valve on the appearance pipe to advance, exhaust mechanism includes first blast pipe and second blast pipe, be provided with first exhaust-gas treatment subassembly on the first blast pipe, the second blast pipe is provided with second exhaust-gas treatment subassembly, exhaust adjustment mechanism includes discharge valve and air pump. Set up the condenser pipe, can cool off, the cooperation gas storage tank carries out quantitative determination, can quantitative contrast do not do the condensation and handle and do the waste gas testing result that the condensation was handled, whether the volatile organic compounds in can effectively retrieving waste gas is retrieved in the analysis condensation, sets up the exhaust-gas treatment subassembly, adsorbs the processing to the waste gas after detecting.
Description
Technical Field
The utility model relates to a chemical waste gas detection technical field, in particular to VOCs detection device in waste gas.
Background
VOCs (volatile Organic compounds) are volatile Organic compounds, which are defined in several kinds, and in China, refer to Organic compounds with saturated vapor pressure of more than 133.32Pa at normal temperature and boiling point of 50-260 ℃ below at normal pressure, or any Organic solid or liquid capable of volatilizing at normal temperature and normal pressure. The main sources are: building materials, interior decoration materials and living and office supplies; incomplete combustion of household fuel and tobacco leaves, human waste; outdoor industrial waste gas, automobile exhaust, photochemistry smog etc. to the human body certain harm, influence people's health, current VOCs check out test set is used for detecting the volatile organic compound in the gas, be used for detecting various environment, can detect total VOCs concentration, principal component concentration, emission total amount etc. however, current VOCs check out test set function is more single, can not analyze the recovery measure of the waste gas that awaits measuring, and simultaneously, there is not the exhaust-gas treatment function, the waste gas after the detection directly discharges in the atmosphere.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a VOCs detection device in waste gas is provided.
The utility model provides an above-mentioned technical problem's technical scheme as follows: an apparatus for detecting VOCs in exhaust gas, comprising: the gas inlet adjusting mechanism comprises a sampling pump, a first gas inlet valve, a second gas inlet valve and a third gas inlet valve, the sampling pump, the filter, the gas-liquid separator and the first gas inlet valve are sequentially arranged on the sampling pipe, the second gas inlet valve and the third gas inlet valve are respectively arranged at two ends of the gas inlet pipe, one end of the gas inlet pipe is connected with the sampling pipe, the other end of the gas inlet pipe is connected with the gas storage box, a piston is arranged in the gas storage box, the condensing pipe comprises a condensing inner pipe and a condensing outer pipe, the condensing outer pipe is provided with a water inlet and a water outlet, the condensing inner pipe is arranged in the condensing outer pipe in a penetrating way, and one end of the condensing inner pipe is connected with the sampling pipe, the other end of condensation inner tube with intake-tube connection, the one end of advance appearance pipe with the gas storage tank is connected, the other end of advance appearance pipe with the detector is connected, be provided with the sampling valve on the advance appearance pipe, exhaust mechanism includes first blast pipe and second blast pipe, first blast pipe with the detector is connected, be provided with first exhaust-gas treatment subassembly on the first blast pipe, the second blast pipe with the gas storage tank is connected, the second blast pipe is provided with second exhaust-gas treatment subassembly, exhaust adjustment mechanism includes discharge valve and air pump, discharge valve, air pump with second exhaust-gas treatment subassembly sets gradually on the second blast pipe.
Furthermore, an air pressure sensor is arranged on the side wall in the air storage box.
Further, the filter is a HEPA filter.
Further, the sampling pipe is provided with a first switch valve.
Further, the first exhaust pipe is provided with a second on-off valve.
Further, the second exhaust pipe is provided with a third on/off valve.
Furthermore, a cavity is formed in the first waste gas treatment assembly, and a plurality of first activated carbon adsorption layers are arranged in the cavity of the first waste gas treatment assembly.
Furthermore, a cavity is formed in the second waste gas treatment assembly, and a plurality of second activated carbon adsorption layers are arranged in the cavity of the second waste gas treatment assembly.
The utility model has the advantages that: the filter and the gas-liquid separator are arranged, waste gas to be detected can be pretreated, convenient subsequent detection is realized, a condensation pipe is arranged, waste gas to be detected can be cooled, quantitative detection is realized by matching a gas storage tank, the waste gas detection result of condensation treatment and condensation treatment can be quantitatively compared, analysis and comparison are carried out on the detection result, whether volatile organic compounds in the detected waste gas can be effectively recovered or not is analyzed and condensed and recovered, a first waste gas treatment component and a second waste gas treatment component of waste gas are arranged, waste gas after detection is subjected to adsorption treatment, and atmospheric pollution is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for detecting VOCs in exhaust gas according to an embodiment.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The following will combine the drawings of the embodiments of the present invention to further describe the technical solution of the present invention, and the present invention is not limited to the following specific embodiments.
It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience of description and simplicity of description, but does not indicate or imply that the equipment or components referred to must have specific orientations, be constructed in specific orientations, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art will understand the specific meanings of the terms according to specific situations.
In one embodiment, as shown in fig. 1, an apparatus for detecting VOCs in exhaust gas comprises: the detector 100, the sampling pipe 200, the condenser pipe 300, the intake pipe 400, the sampling pipe 500, the air intake adjusting mechanism 600, the exhaust adjusting mechanism 700, the exhaust mechanism 800, the filter 210, the gas-liquid separator 220 and the gas storage tank 900, the air intake adjusting mechanism 600 includes the sampling pump 610, the first air intake valve 620, the second air intake valve 630 and the third air intake valve 640, the sampling pump 610, the filter 210, the gas-liquid separator 220 and the first air intake valve 620 sets gradually on the sampling pipe 200, the second air intake valve 630 with the third air intake valve 640 sets up respectively the both ends of intake pipe 400, the one end of intake pipe 400 with the sampling pipe 200 is connected, the other end of intake pipe 400 with the gas storage tank 900 is connected, namely the sampling pipe 200 through the intake pipe 400 with the gas storage tank 900 communicates.
A piston 910 is arranged in the gas storage tank 900, specifically, the gas inlet end of the sampling pipe 200 is sequentially provided with the sampling pump 610, the filter 210, the gas-liquid separator 220 and the first gas inlet valve 620 in the direction of the end connected with the gas inlet pipe 400, that is, the sampling pipe 200 is sequentially provided with the sampling pump 610, the filter 210, the gas-liquid separator 220 and the first gas inlet valve 620 in the direction from the end far away from the gas inlet pipe 400 to the end close to the gas inlet pipe 400, the position where the sampling pipe 200 is connected with the gas inlet pipe 400 is located between the gas-liquid separator 220 and the first gas inlet valve 620, the condensation pipe 300 comprises an inner condensation pipe 310 and an outer condensation pipe 320, the outer condensation pipe 320 is provided with a water inlet 321 and a water outlet 322, the inner condensation pipe 310 is penetratingly arranged in the outer condensation pipe 320, and one end of the inner condensation pipe 310 is connected with the sampling, the other end of the condensation inner tube 310 is connected to the gas inlet tube 400, specifically, the other end of the condensation inner tube 310 is connected to one end of the gas inlet tube 400 far away from the sampling tube 200, one end of the condensation inner tube 310 is communicated with the sampling tube 200, and the other end of the condensation inner tube 310 is communicated with the gas inlet tube 400.
One end of the sample inlet pipe 500 is connected with the gas storage tank 900, the other end of the sample inlet pipe 500 is connected with the detector 100, the sample inlet pipe 500 is provided with a sample inlet valve 510, the exhaust mechanism 800 comprises a first exhaust pipe 810 and a second exhaust pipe 820, the first exhaust pipe 810 is connected with the detector 100, the first exhaust pipe 810 is provided with a first waste gas treatment component 811, the second exhaust pipe 820 is connected with the gas storage tank 900, the second exhaust pipe 820 is provided with a second waste gas treatment component 821, the exhaust adjusting mechanism 700 comprises an exhaust valve 710 and an exhaust pump 720, the exhaust valve 710, the exhaust pump 720 and the second waste gas treatment component 821 are sequentially arranged on the second exhaust pipe 820, that is, the second exhaust pipe 820 and one end connected with the gas storage tank are sequentially arranged in the direction of the exhaust valve 710, The exhaust pump 720 and the second exhaust gas treatment module 821, that is, the exhaust valve 710, the exhaust pump 720 and the second exhaust gas treatment module 821 are sequentially disposed on the second exhaust pipe 820 in a direction away from the gas storage tank 900.
Specifically, the detector 100 has a first air inlet and a first air outlet, the first air inlet of the detector 100 is communicated with the sample inlet tube 500, and the first air outlet of the detector 100 is communicated with the first air outlet 810; the gas tank 900 has a second gas inlet and a second gas outlet, the second gas inlet of the gas tank 900 is communicated with the gas inlet pipe 400, and the second gas outlet of the gas tank 900 is communicated with the second gas outlet pipe 820.
Specifically, the waste gas detection without condensation processing is performed, the sampling pump 610 is started to sample, the second air inlet valve 630 and the third air inlet valve 640 are opened, the first air inlet valve 620, the sample inlet valve 510 and the air outlet valve 710 are closed, the waste gas passes through the filter 210 to filter out solid impurities and then passes through the gas-liquid separator 220 to remove moisture, the pretreatment of the waste gas to be detected is completed, then the waste gas enters the gas storage tank 900, when the piston 910 moves to the rightmost end of the gas storage tank 900 shown in the figure, the sampling pump 610, the second air inlet valve 630 and the third air inlet valve 640 are closed, the sample inlet valve 510 is opened, the waste gas collected in the gas storage tank 900 is detected and analyzed, after the detection is completed, the air outlet pump 720, the air outlet valve 710 and the third air inlet valve 640 are opened, and the waste gas in the gas storage tank 900 and the air inlet pipe 400 is emptied, then the exhaust gas detection through condensation is carried out, the sampling pump 610 is started to sample, the first air inlet valve 620 and the third air inlet valve 640 are opened, the second air inlet valve 630 is closed, the sampling valve 510 and the exhaust valve 710 are closed, similarly, the exhaust gas passes through the filter 210 to filter out solid impurities and then passes through the gas-liquid separator 220 to remove moisture, the pretreatment of the exhaust gas is completed, then the condensation inner pipe 310 is passed through, the condensation outer pipe 320 is introduced with condensed water to condense the exhaust gas to be detected, the condensed exhaust gas enters the gas storage tank 900, when the piston 910 moves to the rightmost end of the gas storage tank 900, the sampling pump 610, the first air inlet valve 630 and the third air inlet valve 640 are closed, the sampling valve 510 is opened, and the exhaust gas collected in the gas storage tank 900 and subjected to condensation is detected and analyzed, after the detection is finished, the exhaust pump 720, the exhaust valve 710 and the third air inlet valve 640 are opened, the exhaust gas in the gas storage tank 900 and the condensation inner pipe 310 is exhausted, the influence on the next detection is avoided, it is worth mentioning that when the detected exhaust gas is exhausted, certain harmful gas can be removed after the detection is carried out by the first exhaust gas treatment component 811 and the second exhaust gas treatment component 821, the pollution to the atmosphere is reduced, and then whether the organic matters in the exhaust gas can be effectively recovered through the condensation treatment can be analyzed by comparing the exhaust gas detection results of the non-condensation treatment and the condensation treatment. It is worth mentioning that, VOCs detection device includes the controller in the waste gas, detector 100 sampling pump 610 first admission valve 620, second admission valve 630 third admission valve 640 the inlet valve 510 exhaust valve 710 with exhaust pump 720 all with the controller electricity is connected, detector 100 sampling pump 610 first admission valve 620 second admission valve 630 third admission valve 640 the inlet valve 510 exhaust valve 710 with exhaust pump 720 all by the controller control to realize the operation.
For example, the Controller is a PLC (Programmable Logic Controller) Controller. The filter and the gas-liquid separator are arranged, waste gas to be detected can be pretreated, convenient subsequent detection is realized, a condensation pipe is arranged, waste gas to be detected can be cooled, quantitative detection is realized by matching a gas storage tank, the waste gas detection result of condensation treatment and condensation treatment can be quantitatively compared, analysis and comparison are carried out on the detection result, whether volatile organic compounds in the detected waste gas can be effectively recovered or not is analyzed and condensed and recovered, a first waste gas treatment component and a second waste gas treatment component of waste gas are arranged, waste gas after detection is subjected to adsorption treatment, and atmospheric pollution is reduced.
To further ensure quantitative comparative analysis, in one embodiment, an air pressure sensor (not shown) is disposed on a side wall within the reservoir 900. Set up baroceptor, can be right atmospheric pressure in the gas receiver 900 detects, can obtain the gas receiver stores the atmospheric pressure value when full waste gas that awaits measuring, then stops admitting air when setting for the condition of doing the condensation and not doing the condensation processing and all reach same atmospheric pressure value, and is specific, baroceptor (not shown) with the controller electricity is connected, has controller control to realize the function, further guaranteed the quantitative determination and the quantitative analysis contrast of waste gas, improved the accuracy of detecting and contrast, thereby improved the accuracy of testing result.
In one embodiment, the filter 210 is a HEPA filter. The HEAP filter is a high-efficiency air filter, fine particles cannot pass through the HEAP filter, but air can pass through the HEAP filter, and the HEAP filter is the most effective filtering medium for pollutants such as smoke, dust, bacteria and the like, and has the advantages of high filtering precision and good filtering effect.
In order to improve the service life and detection accuracy of the device for detecting VOCs in exhaust gas, in one embodiment, the sampling pipe 200 is provided with a first on-off valve 201. The first exhaust pipe 810 is provided with a second switching valve 812. The second exhaust pipe 820 is provided with a third on/off valve 822. Specifically, first ooff valve 201 sets up the inlet end of sampling pipe, second ooff valve 812 sets up the end of giving vent to anger of first blast pipe 810, third ooff valve 822 sets up the outlet duct of second blast pipe 820 when VOCs detection device does not use in the waste gas, close first ooff valve 201, second ooff valve 812 with third ooff valve 822 can prevent that the dust in the external environment from getting into, pollutes VOCs detection device in the waste gas, it is right VOCs detection device has played the guard action in the waste gas, has improved life.
In one embodiment, the first exhaust gas treatment component 811 defines a cavity, and the first exhaust gas treatment component 811 has a plurality of first activated carbon adsorption layers 813 disposed in the cavity. Set up first active carbon adsorption layer 813, active carbon have the adsorption efficiency height, easy maintenance, and application scope is wide advantage can adsorb the purification the waste gas of having tested avoids the waste gas of having tested directly discharging to the environment in, handles the waste gas of having tested, reduces atmospheric pollution.
In one embodiment, the second exhaust gas treatment assembly 821 defines a cavity, and a plurality of second activated carbon adsorption layers 823 are disposed in the cavity of the second exhaust gas treatment assembly 821. Set up second active carbon adsorption layer 823, active carbon have the adsorption efficiency height, easy maintenance, and application scope is wide advantage can adsorb the purification the exhaust gas of having tested avoids the exhaust gas of having tested directly to discharge the environment in, handles the exhaust gas of having tested, reduces atmospheric pollution.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (2)
1. A device for detecting VOCs in exhaust gas, comprising: the gas inlet adjusting mechanism comprises a sampling pump, a first gas inlet valve, a second gas inlet valve and a third gas inlet valve, the sampling pump, the filter, the gas-liquid separator and the first gas inlet valve are sequentially arranged on the sampling pipe, the second gas inlet valve and the third gas inlet valve are respectively arranged at two ends of the gas inlet pipe, one end of the gas inlet pipe is connected with the sampling pipe, the other end of the gas inlet pipe is connected with the gas storage box, a piston is arranged in the gas storage box, the condensing pipe comprises a condensing inner pipe and a condensing outer pipe, the condensing outer pipe is provided with a water inlet and a water outlet, the condensing inner pipe is arranged in the condensing outer pipe in a penetrating way, and one end of the condensing inner pipe is connected with the sampling pipe, the other end of the condensation inner pipe is connected with the air inlet pipe, one end of the sample inlet pipe is connected with the air storage box, the other end of the sample inlet pipe is connected with the detector, a sample inlet valve is arranged on the sample inlet pipe, the exhaust mechanism comprises a first exhaust pipe and a second exhaust pipe, the first exhaust pipe is connected with the detector, a first waste gas treatment assembly is arranged on the first exhaust pipe, the second exhaust pipe is connected with the air storage box, a second waste gas treatment assembly is arranged on the second exhaust pipe, the exhaust adjusting mechanism comprises an exhaust valve and an exhaust pump, and the exhaust valve, the exhaust pump and the second waste gas treatment assembly are sequentially arranged on the second exhaust pipe; an air pressure sensor is arranged on the side wall in the air storage box; the first waste gas treatment component is provided with a cavity, and a plurality of first activated carbon adsorption layers are arranged in the cavity of the first waste gas treatment component; a cavity has been seted up to the second exhaust-gas treatment subassembly, be provided with a plurality of second active carbon adsorption layers in the cavity of second exhaust-gas treatment subassembly, the sampling pipe is provided with first ooff valve, first blast pipe is provided with the second ooff valve, the second blast pipe is provided with the third ooff valve.
2. The apparatus for detecting VOCs in exhaust gas of claim 1, wherein the filter is a HEPA filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168377.6U CN213715153U (en) | 2019-01-30 | 2019-01-30 | VOCs detection device in waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168377.6U CN213715153U (en) | 2019-01-30 | 2019-01-30 | VOCs detection device in waste gas |
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| Publication Number | Publication Date |
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| CN213715153U true CN213715153U (en) | 2021-07-16 |
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| CN201920168377.6U Expired - Fee Related CN213715153U (en) | 2019-01-30 | 2019-01-30 | VOCs detection device in waste gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814024A (en) * | 2022-04-27 | 2022-07-29 | 江苏安琪尔检测科技有限公司 | Fixed pollution source waste gas detection equipment and application method thereof |
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2019
- 2019-01-30 CN CN201920168377.6U patent/CN213715153U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814024A (en) * | 2022-04-27 | 2022-07-29 | 江苏安琪尔检测科技有限公司 | Fixed pollution source waste gas detection equipment and application method thereof |
| CN114814024B (en) * | 2022-04-27 | 2023-05-23 | 沈阳安仕得科技有限公司 | Fixed pollution source waste gas detection equipment and application method thereof |
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Granted publication date: 20210716 Termination date: 20220130 |