CN217505349U - Multichannel collection system for VOCs gas analysis appearance - Google Patents
Multichannel collection system for VOCs gas analysis appearance Download PDFInfo
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- CN217505349U CN217505349U CN202220817906.2U CN202220817906U CN217505349U CN 217505349 U CN217505349 U CN 217505349U CN 202220817906 U CN202220817906 U CN 202220817906U CN 217505349 U CN217505349 U CN 217505349U
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Abstract
The utility model discloses a collection system for multichannel VOCs gas analyzer relates to the gas collection field, including gas analyzer, aspiration pump, inlet branch pipe, inlet manifold and install bin, the lower extreme of inlet manifold is linked together with a plurality of inlet branch pipes, and a plurality of the inner wall of inlet branch pipe all fixedly connected with check valve, a plurality of the inside of inlet branch pipe all fixedly connected with solenoid valve, the left side of install bin inner wall downside is connected with the lower surface fixed of aspiration pump, the input of aspiration pump is fixed to be communicated with the aqueous vapor filter, the right side of install bin inner wall downside is fixed with the controller; the device is provided with a plurality of air intake branch pipes, and a plurality of gaseous collection branch pipes are admitted air by an aspiration pump, can carry out the sampling detection of a plurality of site, and rate of equipment utilization is higher, and gaseous directional control valve can go with remaining gas outgoing in air intake branch pipe and the air intake manifold, can not lead to the fact the influence to the testing result next time.
Description
Technical Field
The utility model relates to a gas acquisition technology, concretely relates to multichannel VOCs collection system for gas analysis appearance.
Background
VOCs are generally divided into several categories including non-methane hydrocarbons, oxygen-containing organic compounds, halogenated hydrocarbons, nitrogen-containing organic compounds, sulfur-containing organic compounds and the like, the VOCs participate in the formation of ozone and secondary aerosol in the atmospheric environment, the VOCs have important influence on regional atmospheric ozone pollution and PM2.5 pollution, most VOCs have unpleasant special odor and have toxicity, irritation, teratogenicity and carcinogenic effect, particularly benzene, toluene, formaldehyde and the like can cause great damage to human health, the VOCs are important precursors causing urban haze and photochemical smog, are mainly derived from processes of coal chemical industry, petrochemical industry, fuel coating manufacturing, solvent manufacturing and using and the like, and are essential for gas detection in specific regions.
The existing gas collecting device is generally used for single-path collection, namely, the single-path gas suction technology is adopted, one suction pump can only suck gas at places, the equipment utilization rate is poor, the cost is high, the large-scale multi-place field gas circulation detection is not facilitated, and the gas residual in a gas pipe can also influence the next gas result.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multichannel VOCs is collection system for gas analysis appearance to solve the above-mentioned weak point among the prior art.
In order to achieve the above object, the present invention provides the following technical solutions: a collecting device for a multichannel VOCs gas analyzer comprises a gas analyzer, an air suction pump, air inlet branch pipes, an air inlet main pipe and an installation box, wherein the lower end of the air inlet main pipe is communicated with a plurality of air inlet branch pipes, the inner walls of the air inlet branch pipes are fixedly connected with one-way valves, the interiors of the air inlet branch pipes are fixedly connected with electromagnetic valves, the left side of the lower side of the inner wall of the installation box is fixedly connected with the lower surface of the air suction pump, the input end of the air suction pump is fixedly communicated with a water gas filter, the right side of the lower side of the inner wall of the installation box is fixedly connected with a controller, the upper surface of the controller is fixedly connected with a gas flowmeter, the output end of the air suction pump is communicated with an air pipe, the right end of the air pipe is communicated with a gas direction control valve, the upper side of the gas direction control valve is communicated with an exhaust pipe, and the lower side of the gas direction control valve is communicated with a gas detection pipe, the gas detection pipe is communicated with the gas flowmeter, penetrates through the right side of the installation box and is communicated with the gas analyzer.
Further, the electromagnetic valves and the air pump are controlled by a controller.
Further, the power of the plurality of air inlet branch pipes is provided by an air suction pump.
Further, the gas analyzer, the air pump, the electromagnetic valve, the controller and the gas flowmeter are all connected with an external power supply.
Further, the gas direction control valve is rotatably connected with a gas baffle inside.
Compared with the prior art, the utility model provides a pair of collection system for multichannel VOCs gas analysis appearance is provided with a plurality of air intake branch pipes, and a plurality of gas acquisition branch pipes are admitted air by an aspiration pump, can carry out the sampling detection of a plurality of sites, and rate of equipment utilization is higher, and gaseous directional control valve can be with remaining gas outgoing in air intake branch pipe and the inlet manifold, can not cause the influence to the testing result next time.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic sectional view of an overall structure provided in an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a in fig. 1 according to an embodiment of the present invention;
fig. 3 is a schematic view of a front view structure provided by an embodiment of the present invention.
Description of reference numerals:
1. a gas analyzer; 2. an air pump; 3. an intake branch pipe; 4. an intake manifold; 5. installing a box; 6. a one-way valve; 7. an electromagnetic valve; 8. a water-gas filter; 9. a controller; 10. a gas flow meter; 11. an air tube; 12. a gas direction control valve; 13. an exhaust pipe; 14. a gas detection tube; 15. a gas baffle.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1-3, a collecting device for a multichannel VOCs gas analyzer 1 comprises a gas analyzer 1, an air pump 2, air inlet branch pipes 3, an air inlet header pipe 4 and an installation box 5, wherein the lower end of the air inlet header pipe 4 is communicated with a plurality of air inlet branch pipes 3, the inner walls of the air inlet branch pipes 3 are fixedly connected with one-way valves 6, the interiors of the air inlet branch pipes 3 are fixedly connected with electromagnetic valves 7, the left side of the lower side of the inner wall of the installation box 5 is fixedly connected with the lower surface of the air pump 2, the input end of the air pump 2 is fixedly communicated with a water-gas filter 8, the right side of the lower side of the inner wall of the installation box 5 is fixedly connected with a controller 9, the upper surface of the controller 9 is fixedly connected with a gas flowmeter 10, the output end of the air pump 2 is communicated with an air pipe 11, the right end of the air pipe 11 is communicated with a gas direction control valve 12, the upper side of the gas direction control valve 12 is communicated with an exhaust pipe 13, the lower side of the gas direction control valve 12 is communicated with a gas detection pipe 14, the gas detection pipe 14 is communicated with the gas flowmeter 10, penetrates through the right side of the installation box 5 and is communicated with the gas analyzer 1, gas can be collected from different areas to be monitored, the water gas filter 8 can discharge water gas in the collected gas, and the influence on the device and monitoring equipment is avoided.
Example two:
referring to fig. 1, the present embodiment provides a technical solution based on the first embodiment: a plurality of solenoid valves 7 and aspiration pump 2 are controlled by controller 9, the power of a plurality of inlet branch pipes 3 is provided by aspiration pump 2, gas analysis appearance 1, aspiration pump 2, solenoid valve 7, controller 9 and gas flowmeter 10 all are connected with external power source, the internal rotation of gas direction control valve 12 is connected with gas baffle 15, wherein gas baffle 15 among the gas direction control valve 12 can change the gas direction, can discharge the gas that detects last time, avoid causing the interference to the testing result next time.
The working principle is as follows: when the gas analyzer is used, the air pump 2 acts to suck gas to be detected from the air inlet branch pipe 3, the gas enters the gas analyzer 1 from the air inlet main pipe 4 due to the action of the one-way valve 6 and the air pump 2, the water in the gas is completely discharged by the water vapor filter 8, the gas flowmeter 10 performs flow statistics to provide more strict data for a detection result, and after the detection is finished, the gas baffle 15 in the gas direction control valve 12 rotates to enable residual gas in the air inlet branch pipe 3 and the air inlet main pipe 4 to be discharged through the exhaust pipe 13.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (5)
1. The collecting device for the multichannel VOCs gas analyzer comprises a gas analyzer (1), an air suction pump (2), air inlet branch pipes (3), an air inlet header pipe (4) and a mounting box (5), and is characterized in that the lower end of the air inlet header pipe (4) is communicated with a plurality of air inlet branch pipes (3), the inner walls of the air inlet branch pipes (3) are fixedly connected with one-way valves (6) and electromagnetic valves (7), the left side of the lower side of the inner wall of the mounting box (5) is fixedly connected with the lower surface of the air suction pump (2), the input end of the air suction pump (2) is fixedly communicated with an aqueous vapor filter (8), the right side of the lower side of the inner wall of the mounting box (5) is fixedly connected with a controller (9), the upper surface of the controller (9) is fixedly connected with a gas flowmeter (10), the output end of the air suction pump (2) is communicated with a gas pipe (11), the gas analyzer is characterized in that the right end of the gas pipe (11) is communicated with a gas direction control valve (12), the upper side of the gas direction control valve (12) is communicated with an exhaust pipe (13), the lower side of the gas direction control valve (12) is communicated with a gas detection pipe (14), and the gas detection pipe (14) is communicated with the gas flowmeter (10), penetrates through the right side of the installation box (5) and is communicated with the gas analyzer (1).
2. The acquisition device for a multichannel VOCs gas analyzer as claimed in claim 1, wherein said plurality of solenoid valves (7) and said air pump (2) are controlled by a controller (9).
3. A sampling device for a multichannel VOCs gas analyzer as claimed in claim 1, wherein the power of a plurality of said inlet manifolds (3) is provided by an air pump (2).
4. The collecting device for a multi-channel VOCs gas analyzer according to claim 1, wherein the gas analyzer (1), the air pump (2), the solenoid valve (7), the controller (9) and the gas flowmeter (10) are all connected with an external power supply.
5. The acquisition device for a multichannel VOCs gas analyzer as claimed in claim 1, wherein a gas baffle (15) is rotatably connected to the inside of said gas direction control valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220817906.2U CN217505349U (en) | 2022-04-11 | 2022-04-11 | Multichannel collection system for VOCs gas analysis appearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220817906.2U CN217505349U (en) | 2022-04-11 | 2022-04-11 | Multichannel collection system for VOCs gas analysis appearance |
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| CN217505349U true CN217505349U (en) | 2022-09-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115684497A (en) * | 2022-11-09 | 2023-02-03 | 江苏丰东热技术有限公司 | Furnace gas monitoring system and method |
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2022
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115684497A (en) * | 2022-11-09 | 2023-02-03 | 江苏丰东热技术有限公司 | Furnace gas monitoring system and method |
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