VOC (volatile organic compound) detection device

Abstract

The utility model discloses a VOC (volatile organic compound) detection device, which is provided with an experiment module for VOC detection and an air exhaust pipeline for sucking air in a detection area, the tail end of the air exhaust pipeline is connected with an air inlet of an air compressor, and an air outlet of the air compressor is connected with an air filter through a pipeline. The air filter is connected with an air inlet of the experiment module through a pipeline, a detection port of the experiment module is connected with the collector, and a waste gas port is connected with the waste gas recovery device. The VOC detection device disclosed by the utility model can be used for monitoring parts with different sizes by switching different experiment cabins, the investment cost of VOC test equipment is reduced, meanwhile, the requirement on a site is low, the VOC detection device can be suitable for a narrow environment, a fixed space does not need to be used as a test cabin, and the cost can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas detection. BACKGROUND

[0002] VOC is volatile organic compound, and when the VOC of airtight space reaches a certain concentration, people will feel headache, nausea, vomiting, fatigue and the like in a short time, and severe will appear convulsions, coma, and will harm the liver, kidney, brain and nervous system of people, so that the VOC of automobile parts has strict restriction requirements.

[0003] The existing VOC testing equipment is either portable and can only detect the VOC concentration in the environment, and cannot meet the testing requirements of parts, or is too large in size and cannot be placed in the car, for example, the publication number is CN211927853U, the publication date is November 13, 2020, and the patent name is "atmospheric VOC detection device". The publication literature discloses an atmospheric VOC detection device, which comprises a VOC detector, the VOC detector is installed and fixed on the mounting plate, a support frame is installed and fixed on the mounting plate, the support frame is rotatably installed on the upper end of the stand column through the support shaft, the lower end of the stand column is rotatably installed on the support cylinder, the support cylinder is installed and fixed on the height-adjustable support assembly, a driving mechanism for driving the stand column to rotate is also installed on the support cylinder, and a second telescopic cylinder for adjusting the angle of the support frame is also installed on the stand column. There is also a VOC monitoring device for automobile parts without waste gas recovery device, and the waste gas is directly discharged into the air, which will affect the environment, especially when testing in the factory room, which will greatly affect the indoor environment. SUMMARY

[0004] The utility model solves the technical problem that a structure is simple and portable, suitable for automobile parts VOC detection, and the device is safe and environmentally friendly.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the technical scheme that a VOC detection device is provided, the device is provided with an experimental cabin for VOC detection, the device is provided with a gas suction pipeline for sucking air in the detection area, the gas suction pipeline is connected with the air inlet of an air compressor at the tail end, the air outlet of the air compressor is connected with an air filter through a pipeline, the air filter is connected with the air inlet of the experimental cabin through a pipeline, and the detection port of the experimental cabin is connected with a collector and the waste gas port is connected with a waste gas recovery device.

[0006] The pipeline between the air filter and the experimental cabin is connected with an air flow meter and an air temperature controller in series, and the air flow meter and the air temperature controller are connected with a control module.

[0007] The control module comprises a processor, a touch screen and a memory.

[0008] The control module is connected to and outputs a control signal to the air compressor, and is connected to and exchanges information with the collector, the waste gas recovery device, the amplifier and the recorder.

[0009] The signal output end of the collector is connected to the recorder through the amplifier.

[0010] The VOC detection device is fixed on a mobile trolley.

[0011] A magnet ring is arranged at the middle part of the air extraction pipeline, and the air extraction pipeline is a corrugated pipe.

[0012] The VOC detection device can monitor different sizes of parts by switching different experimental cabins, reduces the investment cost of VOC testing equipment, has low requirements for the site, can be applied to a narrow environment, does not need to invest in a fixed space as a test cabin, and can effectively reduce the cost.

[0013] In addition, the device can be provided with an amplifier device, which is beneficial to improving the precision of the equipment, and the waste gas recovery device can also ensure the environmental protection of the device. BRIEF DESCRIPTION OF DRAWINGS

[0014] The content expressed by each drawing in the description of the utility model will be briefly described as follows:

[0015] Figure 1 It is a principle block diagram of the VOC detection device. DETAILED DESCRIPTION

[0016] The specific embodiments of the utility model will be further described in detail below by referring to the drawings and the description of the embodiments, so as to help the skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical scheme of the utility model.

[0017] As shown in the drawings, Figure 1 The device comprises an air compressor, a filter, an air flow meter, a temperature and humidity controller, an experimental cabin module, a VOC collector, an amplifier, a recorder, a waste gas recovery device and a control module, and is particularly suitable for monitoring VOC of automobile parts.

[0018] In order to adapt to the use of small space, gas extraction uses independent pipeline, that is, a section of air extraction pipeline is arranged, the length of the air extraction pipeline can be equipped according to requirements, and generally 2-5 meters can be arranged. Preferably, a corrugated pipe is used, which can be bent according to requirements, and can be lengthened or shortened according to requirements. The magnet ring has a adsorption function, and can be adsorbed on a ferrous object as required, indirectly fixing the pipeline, avoiding the pipeline from swinging caused by suction force, improving the air extraction effect. For example, the magnet ring can be adsorbed on the body sheet metal part, and then the front section of the pipeline is stretched into the vehicle to test the air extraction.

[0019] The VOC detection device is fixed on the mobile trolley, so that it is convenient to move. The entire device can be conveniently moved to the vehicle to be tested. After the air extraction pipeline is simply fixed, the test can be carried out. The site requirement is overcome, and the interior of a small space can be tested. Therefore, the device is particularly suitable for automobile VOC detection. The various components are modularized, and can be increased according to requirements. The connection is also through a pipeline or a circuit. The trolley is a multi-layer open panel structure. Different components are fixed on different panels. After connection, work can be carried out. Maintenance workers are also convenient. The components can be replaced, upgraded, and other components can be added or removed. The entire device is more flexible.

[0020] The connection relationship along the air path includes an air compressor, an air filter, an air flow meter, a temperature and humidity controller, an experimental bin module, and a VOC collector. The components are connected through a pipeline. The exhaust gas outlet of the experimental bin module is connected to a waste gas recovery device through a pipeline. The waste gas recovery device can reliably complete the waste gas treatment work. The air extraction pipeline sucks the gas to be tested into the air compressor, and then into the air filter. The air filter filters the gas for preliminary treatment. After passing through the air flow meter, the gas flows into the temperature and humidity controller. The air flow meter records the volume of the experimental air extraction gas as a basis for judging whether the detection is reliable. After passing through the temperature and humidity controller, the humidity and temperature of the gas are adjusted to meet the air demand of the experimental bin. The adjustment parameters are determined according to the input gas requirements of the selected experimental bin. The signal output end of the VOC collector is connected to a recorder through an amplifier. The amplifier can improve the sensitivity of data acquisition.

[0021] The entire device is controlled by an independent control module to coordinate related work. The control module includes a processor, a touch screen, and a memory. The air flow meter and the air temperature controller are connected to the control module. The control module is connected to and outputs control signals to the air compressor. The control module is connected to and interacts with the collector, the waste gas recovery device, the amplifier, and the recorder. The control module can use a tablet computer or a dedicated PDA to coordinate the operation of the entire device. When starting work, the working parameters of each component are controlled to improve the intelligence of the system. The network function of the control module can be used to store or upload the collected data, making the system more intelligent.

[0022] The whole device principle is: air is pressed into the filter by the air compressor to filter air impurities, the air flow meter measures the air to achieve the required air volume, the temperature and humidity controller adjusts the air temperature and humidity to achieve the required temperature and humidity, the test parts are placed in the test cabin, which can be customized according to the size of the test sample, the collection module collects the VOC material in the test cabin, the recorder detects the VOC value through the amplifier, and the amplifier is used to improve the test precision, the test cabin is connected with the waste gas recovery device at the same time, and the test cabin waste gas is collected after the experiment is completed. The control module controls each device to work according to the experimental requirements.

[0023] The mutual cooperation mode between the modules of the VOC detection device is ingenious, the detection module and the test cabin are separated, and different size test cabins can be selected according to requirements. It is especially suitable for VOC monitoring of automobile parts.

[0024] The above describes the present application in conjunction with the drawings, and it is obvious that the specific implementation of the present application is not limited by the above mode, as long as various non-essential improvements are made by adopting the method concept and technical scheme of the present application, or the concept and technical scheme of the present application are directly applied to other occasions without improvement, all of which are within the protection scope of the present application.

Claims

1. A VOC detection device, comprising an experimental chamber for VOC detection, characterized in that: The device is provided with an exhaust pipe for sucking air from the detection area. The end of the exhaust pipe is connected to the air inlet of the air compressor, the air outlet of the air compressor is connected to the air filter through a pipe, the air filter is connected to the air inlet of the experimental cabin through a pipe, the detection port of the experimental cabin is connected to the collector, and the exhaust port is connected to the exhaust gas recovery device.

2. The VOC detection device according to claim 1, characterized in that: An air flow meter and an air temperature controller are connected in series on the pipeline between the air filter and the experimental cabin, and the air flow meter and the air temperature controller are connected to the control module.

3. The VOC detection device according to claim 2, characterized in that: The control module includes a processor, a touch screen and a memory.

4. The VOC detection device according to claim 3, characterized in that: The control module is connected to and outputs a control signal to the air compressor, and the control module is connected to and exchanges information with a collector, an exhaust gas recovery device, an amplifier and a recorder.

5. The VOC detection device according to claim 4, characterized in that: The signal output end of the collector is connected to a recorder via an amplifier.

6. The VOC detection device according to any one of claims 1 to 5, characterized in that: The VOC detection device is fixed on the mobile vehicle.

7. The VOC detection device according to claim 6, characterized in that: A magnet ring is provided in the middle of the air extraction pipe, and the air extraction pipe is a bellows.

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