CN210123370U - Portable self-leakage-detection multi-channel voc sampling device - Google Patents
Portable self-leakage-detection multi-channel voc sampling device Download PDFInfo
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- CN210123370U CN210123370U CN201920211983.1U CN201920211983U CN210123370U CN 210123370 U CN210123370 U CN 210123370U CN 201920211983 U CN201920211983 U CN 201920211983U CN 210123370 U CN210123370 U CN 210123370U
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Abstract
The utility model provides a portable multichannel voc sampling device from leak hunting belongs to gaseous adoption device field in the vehicle, include: the sampling device comprises a box body, a flow control module, a vacuum pump and a sampling pipe assembly, wherein the flow control module and the vacuum pump are arranged in the box body, the vacuum pump is connected with the flow control module, and the sampling pipe assembly is connected with the flow control module; the utility model has the advantages that: the internal structure design is compact and reasonable, the volume is small, and the carrying is very convenient.
Description
Technical Field
The utility model belongs to the technical field of gaseous collection equipment, a portable self-checking leaks multichannel voc sampling device is related to.
Background
In some specific environments or product detection processes, VOC (volatile organic compounds) is required to be detected, for example, in chinese patent application No. 201110274080.6, it discloses a VOC sampling device, which includes a box body, a system pneumatic control electromagnetic valve and an analyzer pneumatic control electromagnetic valve, a heating device, a protective filter, a system sampling pneumatic control valve and an analyzer sampling pneumatic control valve are arranged in the box body, the protective filter is connected to the system sampling pneumatic control valve and the analyzer sampling pneumatic control valve through pipelines, respectively; the system sampling pneumatic control valve is connected to the sampling pump through a pipeline; the system pneumatic control electromagnetic valve is used for controlling the on-off of the system sampling pneumatic control valve; the analyzer pneumatic control electromagnetic valve is used for controlling the on-off of the analyzer sampling pneumatic control valve.
The existing sampling device is not compact and reasonable in internal structure design, large in size and inconvenient to carry, and has certain improvement space.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem that prior art exists, provide a portable self-checking leaks multichannel voc sampling device.
The purpose of the utility model can be realized by the following technical proposal: a portable self-leak testing multi-channel voc sampling device comprising: box, flow control module, vacuum pump and sampling pipe subassembly, flow control module and the vacuum pump all sets up in the box, the vacuum pump with flow control module connects, the sampling pipe subassembly with flow control module connects.
Preferably, a port is arranged on the side wall of the box body, and two ends of the port are respectively connected with the flow control module and the sampling pipe assembly.
Preferably, the flow control module comprises three flow controllers, the sampling pipe assembly comprises three sampling pipes, the three sampling pipes are respectively connected with the three flow controllers, and the three flow controllers are connected with the vacuum pump.
Preferably, two sampling pipes are connected with a TENAX pipe, and one sampling pipe is connected with a DNPH pipe.
Preferably, a plug head is arranged on the sampling tube, and the plug head is detachably plugged at the end part of the sampling tube.
Preferably, the box body is provided with a limiting ring, and the sampling pipe is arranged in the limiting ring in a penetrating manner.
Preferably, an integrated circuit module is arranged in the box body, and the integrated circuit module is electrically connected with the vacuum pump and the flow controller.
Preferably, a display screen is embedded in the box body and electrically connected with the integrated circuit module.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the internal structure design is compact and reasonable, the volume is small, and the carrying is very convenient.
2. Flow control module is direct butt joint on one end of interface, and the sampling tube subassembly then docks at the other end of interface, and this kind of structure sets up the structure of gathering the bag in for traditional box, and its volume is littleer, and the sampling tube subassembly can realize along with inserting the effect along with using.
Drawings
Fig. 1 is a schematic structural view of the portable self-leak-checking multichannel voc sampling device of the present invention.
Fig. 2 is a schematic structural diagram of the flow control module of the present invention.
Fig. 3 is a top view of the portable self-leak-checking multichannel voc sampling device of the present invention.
In the figure, 100, a box body; 110. an interface; 120. a limiting ring; 200. a vacuum pump; 300. a flow controller; 400. a sampling tube; 500. a plug head; 600. an integrated circuit module; 700. a display screen.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, 2, and 3, a portable self-leak testing multi-channel voc sampling device includes: box 100, flow control module, vacuum pump 200 and sampling pipe subassembly, flow control module and vacuum pump 200 all sets up in the box 100, vacuum pump 200 with flow control module connects, the sampling pipe subassembly with flow control module connects.
It should be noted here that voc is a volatile organic compound, and the concentration of the volatile organic compound in the vehicle is generally detected at the time of vehicle inspection, and the voc sampling device is generally used at the time of detection.
In this embodiment, the vacuum pump 200 provides suction to the flow control module, and the flow control module controls the flow of the inlet gas in the sampling tube assembly, and the sampling tube assembly is used for sucking air in the vehicle, so as to detect the concentration of the volatile organic compounds; therefore, each part of the whole device is very compact, small in size and convenient to carry.
As shown in fig. 1, 2 and 3, on the basis of the above embodiment, a port 110 is disposed on a side wall of the box 100, and both ends of the port 110 are respectively connected to the flow control module and the sampling tube assembly.
It should be noted that the flow control module and the vacuum pump 200 are installed in the box 100, and the sampling tube assembly is located outside the box 100, wherein the flow control module is directly connected to one end of the interface 110, and the sampling tube assembly is connected to the other end of the interface 110.
As shown in fig. 1, 2 and 3, in the above embodiment, the flow control module includes three flow controllers 300, the sampling tube assembly includes three sampling tubes 400, the three sampling tubes 400 are respectively connected to the three flow controllers 300, and the three flow controllers 300 are connected to the vacuum pump 200.
Preferably, the flow controller 300 is a device capable of controlling the flow of the intake air, and is an existing control device capable of controlling the flow of the intake air of the gas, and the sampling tube 400 is actually a sampling passage.
Preferably, there are four conventional flow controllers 300 and sampling channels, but only three sampling channels are actually needed during vehicle inspection, so that one sampling channel is idle, and the structure of the three flow controllers 300 and the sampling pipes 400 is more suitable for sampling the voc in the vehicle, so that the sampling device is a device special for vehicle detection.
As shown in fig. 1, 2 and 3, in addition to the above embodiments, a TENAX tube is connected to two of the sampling tubes 400, and a DNPH tube is connected to one of the sampling tubes 400.
Preferably, in the actual testing process, three sampling pipes 400 are additionally connected with a TENAX pipe and a DNPH pipe, the sampling flow rates of the TENAX pipe and the DNPH pipe are different, so the sampling flow rate of each sampling pipe 400 is controlled by a respective flow controller 300, two of the three sampling pipes are used for connecting the TENAX pipe, one sampling pipe is used for connecting the DNPH pipe, a plurality of adsorption filling materials are arranged in the TENAX pipe, total volatile organic compounds such as benzene series can be adsorbed, the specific sampling principle is that organic volatile compounds are adsorbed by activated carbon, and the working principle of the DNPH pipe is similar to that of the TENAX pipe and is mainly used for adsorbing total volatile organic compounds such as aldehyde ketone.
As shown in FIG. 1, in addition to the above embodiments, the sampling tube 400 is provided with a plug 500, and the plug 500 is detachably plugged at the end of the sampling tube 400.
Preferably, the plug 500 is not used for plugging the sampling tube 400, but is used for self-leakage detection of the sampling tube 400, the sampling tube 400 is a flexible pipe which can be bent, when the plug 500 is plugged at the air inlet end of the sampling tube 400, the vacuum pump 200 is turned on, and a predetermined flow rate is set by the flow controller 300 to control the air suction of the sampling tube 400, for example, the air inlet flow rate of the flow controller 300 is set to 400ml/min, and if the sampling tube 400 has no air leakage, the actual flow rate displayed by the flow controller 300 is 0 ml/min; the sealing performance of the air passage inside the device corresponding to the channel can be proved to be good.
As shown in fig. 1, on the basis of the above embodiment, a stop collar 120 is disposed on the box body 100, and the sampling tube 400 is inserted into the stop collar 120.
Preferably, because sampling tube 400 is external on box 100, so in order to make sampling tube 400 fix on certain particular state and position, need set up spacing ring 120, spacing ring 120 is the loop configuration, and when sampling tube 400 worn to establish in spacing ring 120, because sampling tube 400 has elasticity, it can be contradicted in spacing ring 120 to play the purpose of fixing sampling tube 400.
As shown in fig. 1, in addition to the above embodiment, an integrated circuit module 600 is provided in the casing 100, and the integrated circuit module 600 is electrically connected to the vacuum pump 200 and the flow rate controller 300.
Preferably, the integrated circuit module 600 is used to control the operation of the flow controller 300 and the vacuum pump 200, which can provide circuit support for the whole sampling device, and particularly, the integrated circuit module 600 can control the actual operation state of the flow controller 300.
As shown in fig. 1, in addition to the above embodiments, a display screen 700 is embedded in the case 100, and the display screen 700 is electrically connected to the integrated circuit module 600.
Preferably, the display screen 700 is capable of displaying the actual flow rate and the set flow rate, thereby facilitating the self-leak testing operation of the sampling tube 400.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (8)
1. A portable self-leak testing multichannel voc sampling device, comprising: box, flow control module, vacuum pump and sampling pipe subassembly, flow control module and the vacuum pump all sets up in the box, the vacuum pump with flow control module connects, the sampling pipe subassembly with flow control module connects.
2. A portable self-leak-detection multi-channel voc sampling apparatus as recited in claim 1, wherein: the side wall of the box body is provided with a connector, and two ends of the connector are respectively connected with the flow control module and the sampling pipe assembly.
3. A portable self-leak-detection multi-channel voc sampling apparatus as recited in claim 1, wherein: the flow control module comprises three flow controllers, the sampling pipe assembly comprises three sampling pipes, the sampling pipes are respectively connected with the three flow controllers, and the flow controllers are connected with the vacuum pump.
4. A portable self-leak-detection multi-channel voc sampling apparatus as recited in claim 3, wherein: two sampling pipes are connected with a TENAX pipe, and one sampling pipe is connected with a DNPH pipe.
5. A portable self-leak-detection multi-channel voc sampling apparatus as recited in claim 4, wherein: the sampling pipe is provided with a plug head, and the plug head is detachably plugged at the end part of the sampling pipe.
6. The portable self-leak testing multi-channel voc sampling device of claim 5 wherein: the box body is provided with a limiting ring, and the sampling pipe is arranged in the limiting ring in a penetrating mode.
7. A portable self-leak-detection multi-channel voc sampling apparatus as recited in claim 3, wherein: and an integrated circuit module is arranged in the box body, and the integrated circuit module is electrically connected with the vacuum pump and the flow controller.
8. The portable self-leak testing multi-channel voc sampling device of claim 7 wherein: the display screen is embedded in the box body and electrically connected with the integrated circuit module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920211983.1U CN210123370U (en) | 2019-02-15 | 2019-02-15 | Portable self-leakage-detection multi-channel voc sampling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920211983.1U CN210123370U (en) | 2019-02-15 | 2019-02-15 | Portable self-leakage-detection multi-channel voc sampling device |
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| CN210123370U true CN210123370U (en) | 2020-03-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414706A (en) * | 2022-03-30 | 2022-04-29 | 南通森呼吸环保科技有限公司 | Efficient detection device and detection method for benzene series volatile organic components |
-
2019
- 2019-02-15 CN CN201920211983.1U patent/CN210123370U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414706A (en) * | 2022-03-30 | 2022-04-29 | 南通森呼吸环保科技有限公司 | Efficient detection device and detection method for benzene series volatile organic components |
| CN114414706B (en) * | 2022-03-30 | 2022-06-21 | 南通森呼吸环保科技有限公司 | Efficient detection device and detection method for benzene series volatile organic components |
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