CN216622301U

CN216622301U - Waste gas volatile organic compounds sampling device

Info

Publication number: CN216622301U
Application number: CN202122743320.4U
Authority: CN
Inventors: 何冲
Original assignee: Individual
Current assignee: Weilin Environmental Protection Technology Dalian Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-05-27
Anticipated expiration: 2031-11-10

Abstract

The utility model relates to the technical field of volatile organic compounds, and particularly discloses a waste gas volatile organic compound sampling device which comprises an installation shell, wherein a mesh cover is fixedly installed outside the installation shell, a rubber sealing cover, a VOC gas sensor, an exhaust fan, a cover body and a fixed shell are fixedly installed inside the installation shell, the input end of the VOC gas sensor is communicated and installed with a detection pipe, the outside of the exhaust fan is communicated and installed with an input pipe body and an output pipe body, and the output end of the output pipe body is communicated and installed with an air collecting bag. According to the utility model, the VOC gas sensor is used for monitoring external organic gas, the exhaust fan can be automatically started when the VOC gas sensor is triggered, the organic gas can be rapidly injected into the gas collecting bag for collection, the elastic switch can be triggered when the gas collecting bag body is excessively expanded, the electromagnetic valve pipe can be automatically started, the excessive organic gas can be discharged from the gas collecting bag, and the situation that the gas collecting bag body is excessively expanded to burst is avoided.

Description

Waste gas volatile organic compounds sampling device

Technical Field

The utility model relates to the technical field of volatile organic compounds, in particular to a waste gas volatile organic compound sampling device.

Background

Industrial waste gas that fuel burning and transportation produced, automobile exhaust, photochemical pollution all can produce a volatile organic matter, volatile organic matter is the main formation part that forms PM2.5, can cause huge harm to atmospheric environment, in order to prevent and treat the volatile organic matter in the atmosphere, need fixed point sampling, obtain this regional volatile organic matter concentration and kind, carry out the pertinence and handle, the manual sampling is comparatively dangerous and troublesome, so we propose a waste gas volatile organic matter sampling device.

In the prior art (No. CN212674558U), a device for sampling volatile organic compounds in exhaust gas comprises a first conduit, a sampling barrel, and a second conduit, wherein the first conduit and the second conduit are both disposed outside the sampling barrel; the top of the sampling barrel is provided with an air inlet and an air outlet, the upper part of the air inlet is connected with the tail end of the first guide pipe, the lower part of the air inlet is connected with a sealed sampling air bag, the sealed sampling air bag is arranged in the sampling barrel, and the bottom of the sampling barrel is also provided with a heating device; the upper part of the air outlet is connected with the head end of a second conduit, and the tail end of the second conduit is connected with a first air pump; the head end of the first guide pipe is provided with a first valve.

In the process of implementing the utility model, the inventor finds that at least the following problems in the prior art are not solved; above-mentioned device passes through the gasbag and collects organic matter gas, but the gasbag lacks the protection, and the air pump can lead to the gasbag to burst with gasbag volume inflation too big to the gasbag of above-mentioned device is located inside the sampling barrel, and is inconvenient to sample the inside gas of collecting of gasbag.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a waste gas volatile organic compound sampling device, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a waste gas volatile organic compounds sampling device, which comprises an installation shell, the outside fixed mounting of installation casing has the mesh cover, the inside fixed mounting of installation casing has rubber seal cover, VOC gas sensor, the air exhauster, the cover body and fixed casing, the test tube is installed to VOC gas sensor's input intercommunication, input body and output body are installed to the outside intercommunication of air exhauster, the output intercommunication of output body installs an album gasbag, the tee bend body is installed to the output intercommunication of album gasbag, the solenoid valve pipe is installed to the outside intercommunication of tee bend body, the equal fixed mounting in cover inner wall both sides has the elasticity switch, the outside articulated closing plate of installing of fixed casing, the inside activated carbon plate of installing of inlaying of fixed casing.

As a preferred embodiment of the utility model, the gas collecting bag is positioned inside the cover body, and the gas collecting bag is positioned between the two elastic switches.

As a preferred embodiment of the present invention, the three-way pipe body and the solenoid valve pipe are both located outside the cover body, the output end of the solenoid valve pipe is connected to the fixed housing, and the solenoid valve pipe is electrically connected to the elastic switch.

In a preferred embodiment of the present invention, the detection tube and the input tube are both located inside the rubber sealing cover, and the mesh cover and the rubber sealing cover are located on the same horizontal line.

As a preferred embodiment of the present invention, the VOC gas sensor is electrically connected to a suction fan.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the VOC gas sensor is used for monitoring external organic gas, the exhaust fan can be automatically started when the VOC gas sensor is triggered, the organic gas can be rapidly injected into the gas collecting bag for collection, the elastic switch can be triggered when the gas collecting bag body is too expanded, the electromagnetic valve pipe can be automatically started, the excessive organic gas can be discharged from the gas collecting bag, and the situation that the gas collecting bag body is too expanded to burst is avoided.

2. According to the utility model, the input ends of the detection tube and the input tube body are sealed by the rubber sealing cover, so that external organic gas is prevented from entering the installation shell, the valve body of the three-way tube body can be directly opened for sampling during sampling, the sampling operation is simple and convenient, the excessive organic gas flowing out of the electromagnetic valve tube can pass through the fixed shell, and the organic gas is adsorbed and purified by the activated carbon plate, so that the organic gas is prevented from returning to the atmospheric environment again to cause pollution.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a front view of an apparatus for sampling waste VOCs of the present invention;

fig. 2 is a schematic structural diagram of a fixed housing of the exhaust gas volatile organic compound sampling apparatus according to the present invention.

In the figure: 1. installing a shell; 2. a mesh cage; 3. an activated carbon plate; 4. inputting the tube body; 5. a detection tube; 6. a rubber seal cover; 7. a VOC gas sensor; 8. an exhaust fan; 9. an output pipe body; 10. an elastic switch; 11. a cover body; 12. an air collecting bag; 13. a three-way pipe body; 14. a solenoid valve tube; 15. a stationary housing; 16. and (7) sealing the plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained by combining the specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, the present invention provides a technical solution: the utility model provides a waste gas volatile organic compounds sampling device, including

installation casing

1, 1 outside fixed mounting of installation casing has mesh cage 2, 1 inside fixed mounting of installation casing has rubber seal cover 6, VOC gas sensor 7, air exhauster 8, cover body 11 and fixed casing 15, detection tube 5 is installed to VOC gas sensor 7's input intercommunication, input body 4 and output body 9 are installed to 8 outside intercommunications of air exhauster, air collecting bag 12 is installed to output body 9's output intercommunication, tee bend body 13 is installed to the output intercommunication of air collecting bag 12, solenoid valve pipe 14 is installed to 13 outside intercommunications of tee bend body, the equal fixed mounting in cover body 11 inner wall both sides has elastic switch 10, fixed casing 15 outside hinges installs closing plate 16, fixed casing 15 inside inlays and installs activated carbon plate 3.

In this embodiment, as shown in fig. 1 and fig. 2, the mesh cover 2 disposed outside the installation housing 1 can prevent external foreign matters from entering the installation housing 1, the external organic gas is monitored by the VOC gas sensor 7, the exhaust fan 8 can be automatically turned on when the VOC gas sensor 7 is triggered, the input end of the input tube 4 generates negative pressure, the organic gas can be injected into the air collecting bag 12 through the output tube 9, the rubber sealing cover 6 can seal the input ends of the detection tube 5 and the input tube 4, so as to prevent the external organic gas from entering the installation housing 1, the elastic switch 10 can be triggered when the volume of the air collecting bag 12 is too large, the electromagnetic valve tube 14 can be automatically turned on, the excessive organic gas can enter the fixed housing 15 through the electromagnetic valve tube 14, the organic gas is adsorbed and purified by the activated carbon plate 3, and the organic gas is prevented from being polluted by returning to the atmosphere again, when the volume of the air collecting bag 12 is normal and the elastic switch 10 is not triggered, the electromagnetic valve tube 14 is automatically closed, the valve body of the three-way tube body 13 can be directly opened for sampling during sampling, and the sampling operation is simple and convenient.

In this embodiment, the gas collecting bag 12 is located inside the cover body 11, the gas collecting bag 12 is located between the two elastic switches 10, the solenoid valve tube 14 is electrically connected to the elastic switches 10, when the volume of the gas collecting bag 12 is too large, the elastic switches 10 are triggered, the solenoid valve tube 14 can be automatically opened, and the volume of the gas collecting bag 12 can be rapidly reduced.

In this embodiment, three-way pipe body 13 and solenoid valve pipe 14 all are located the outside of the cover body 11, conveniently sample through three-way pipe body 13, conveniently maintain solenoid valve pipe 14 simultaneously, and solenoid valve pipe 14's output and fixed casing 15 intercommunication are connected, and solenoid valve pipe 14 can carry organic matter gas to fixed casing 15 inside.

In this embodiment, sense tube 5 and input body 4 all are located the inside of rubber seal cover 6, and mesh cover 2 is located same water flat line with rubber seal cover 6, and inside mesh cover 2 can prevent external foreign matter to get into installation casing 1, and inside rubber seal cover 6 can prevent external organic matter gas to get into installation casing 1.

In this embodiment, VOC gas sensor 7 and air exhauster 8 electric connection can open air exhauster 8 automatically when triggering VOC gas sensor 7.

The working principle is as follows: when the waste gas volatile organic compound sampling device is used, external foreign matters can be prevented from entering the inside of the installation shell 1 through the mesh cover 2 arranged outside the installation shell 1, external organic gas can be monitored through the VOC gas sensor 7, the exhaust fan 8 can be automatically started when the VOC gas sensor 7 is triggered, the input end of the input tube body 4 generates negative pressure, the organic gas can be injected into the air collecting bag 12 through the output tube 9, the rubber sealing cover 6 can seal the detection tube 5 and the input end of the input tube body 4, the external organic gas can be prevented from entering the inside of the installation shell 1, the elastic switch 10 can be triggered when the volume of the air collecting bag 12 is expanded excessively, the electromagnetic valve tube 14 can be automatically started, the excessive organic gas can enter the fixed shell 15 through the electromagnetic valve tube 14, and the active carbon plate 3 can adsorb and purify the organic gas, when the volume of the air collecting bag 12 is normal and the elastic switch 10 is not triggered, the electromagnetic valve tube 14 is automatically closed, and the valve body of the three-way tube body 13 can be directly opened for sampling during sampling.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an exhaust gas volatile organic compounds sampling device, includes installation casing (1), its characterized in that: the device is characterized in that a mesh cover (2) is fixedly arranged outside the installation shell (1), a rubber sealing cover (6), a VOC gas sensor (7), an exhaust fan (8), a cover body (11) and a fixed shell (15) are fixedly arranged inside the installation shell (1), a detection pipe (5) is arranged in the input end of the VOC gas sensor (7) in a communicating manner, an input pipe body (4) and an output pipe body (9) are arranged in the external portion of the exhaust fan (8) in a communicating manner, an air collecting bag (12) is arranged in the output end of the output pipe body (9) in a communicating manner, a three-way pipe body (13) is arranged in the output end of the air collecting bag (12) in a communicating manner, an electromagnetic valve pipe (14) is arranged in the external portion of the three-way pipe body (13), elastic switches (10) are fixedly arranged on two sides of the inner wall of the cover body (11), and a sealing plate (16) is hinged and arranged outside the fixed shell (15), and an active carbon plate (3) is embedded in the fixed shell (15).

2. The exhaust gas voc sampling apparatus according to claim 1, wherein: the air collecting bag (12) is positioned inside the cover body (11), and the air collecting bag (12) is positioned between the two elastic switches (10).

3. The exhaust gas voc sampling apparatus according to claim 1, wherein: the three-way valve body (13) and the solenoid valve tube (14) are both located outside the cover body (11), the output end of the solenoid valve tube (14) is communicated with the fixed shell (15), and the solenoid valve tube (14) is electrically connected with the elastic switch (10).

4. The exhaust gas voc sampling apparatus according to claim 1, wherein: the detection tube (5) and the input tube body (4) are both located inside the rubber sealing cover (6), and the mesh cover (2) and the rubber sealing cover (6) are located on the same horizontal line.

5. The exhaust gas voc sampling apparatus according to claim 1, wherein: and the VOC gas sensor (7) is electrically connected with the exhaust fan (8).