CN220729771U - Gas sampling device at exhaust outlet of smoking room - Google Patents
Gas sampling device at exhaust outlet of smoking room Download PDFInfo
- Publication number
- CN220729771U CN220729771U CN202322317204.5U CN202322317204U CN220729771U CN 220729771 U CN220729771 U CN 220729771U CN 202322317204 U CN202322317204 U CN 202322317204U CN 220729771 U CN220729771 U CN 220729771U
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- sampling
- drainage tube
- drainage
- sampling device
- outlet
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- 238000005070 sampling Methods 0.000 title claims abstract description 118
- 230000000391 smoking effect Effects 0.000 title claims abstract description 49
- 239000000779 smoke Substances 0.000 claims abstract description 18
- 239000011148 porous material Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 21
- 239000007789 gas Substances 0.000 description 17
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- HORQAOAYAYGIBM-UHFFFAOYSA-N 2,4-dinitrophenylhydrazine Chemical compound NNC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O HORQAOAYAYGIBM-UHFFFAOYSA-N 0.000 description 5
- 238000003795 desorption Methods 0.000 description 5
- 239000012855 volatile organic compound Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 4
- 238000010561 standard procedure Methods 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model belongs to the field of sampling devices, and particularly relates to a gas sampling device at an exhaust outlet of a smoking chamber. This smoke chamber air exit department gas sampling device includes the sampling car and places the sampling device on the sampling car, still including being used for the gaseous drainage of smoke chamber air exit department to sampling device's drainage subassembly, the drainage subassembly includes the drainage tube, and the drainage tube includes the hose section, the entrance point of drainage tube is connected with the port holder that is used for supporting drainage tube port, and sampling device is connected to the exit end of drainage tube. The utility model arranges the inlet end of the drainage tube at the air outlet of the roof of the smoking room through the port retainer, and the outlet end is connected to the sampling device; after sampling, the port retainer is retracted, the whole set of sampling device is moved to the next smoking chamber by utilizing the sampling vehicle, the whole sampling process is very convenient, and the efficient sampling detection of the gas at the air outlets of the smoking chambers is facilitated.
Description
Technical Field
The utility model belongs to the field of sampling devices, and particularly relates to a gas sampling device at an exhaust outlet of a smoking chamber.
Background
The smoking room is a place for smokers to smoke, and is usually provided with a ventilation and purification device for purifying smoke and facilities such as smoke extinguishing, lighting, entertainment and the like. The smoking room separates the smoker from the non-smoker, which not only can meet the requirements of the smoker, but also can reduce the influence of second-hand smoke on the non-smoker.
Smoke in a smoking chamber is typically cleaned and then typically exhausted indoors or outdoors. The monitoring of the air quality at the exhaust outlet of the smoking chamber is an important means for evaluating the smoke purifying effect of the smoking chamber, and a sampling and detecting device for the gas at the exhaust outlet of the smoking chamber is not available at present. In addition, a plurality of smoking chambers are generally arranged in a public place, which further increases the difficulty in sampling and detecting the exhaust gas of the smoking chambers in the public place.
Disclosure of Invention
The utility model aims to provide a gas sampling device at an exhaust outlet of a smoke suction chamber, which solves the problem that the prior art cannot sample and detect the exhaust gases of a plurality of smoke suction chambers in public places efficiently.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a smoke chamber air exit department gas sampling device, includes the sampling car and places the sampling device on the sampling car, still including being used for the gaseous drainage to sampling device's of smoke chamber air exit department drainage subassembly, the drainage subassembly is including the drainage tube that has the hose section, the entrance point of drainage tube is connected with the port holder that is used for supporting drainage tube port, and sampling device is connected to the exit end of drainage tube.
The utility model provides a gas sampling device at an exhaust outlet of a smoking room, which utilizes a sampling vehicle and a drainage component to perform efficient sampling of a plurality of smoking rooms in public places, and when in sampling, an inlet end (sampling end) of a drainage tube is arranged at the exhaust outlet of a roof of the smoking room through a port retainer thereof, and the outlet end is connected to the sampling device; after sampling, the port retainer is retracted, the whole set of sampling device is moved to the next smoking chamber by utilizing the sampling vehicle, the whole sampling process is very convenient, and the efficient sampling detection of the exhaust gas of a plurality of smoking chambers is facilitated.
Preferably, the port holder includes a holding plate provided with a holding hole into which an end of the drain tube is inserted. Through the arrangement of the retaining plate and the retaining holes, the end part of the drainage tube can be supported and maintained conveniently, and the drainage tube is prevented from moving randomly.
Further preferably, the number of the retaining plates is more than two, the more than two retaining plates are arranged in parallel at intervals, the two retaining plates are correspondingly provided with the retaining holes, and the end parts of the drainage tubes penetrate through the retaining holes on the two retaining plates. By the arrangement of the two retaining plates, the supporting and retaining effects on the end part of the drainage tube are further improved.
More preferably, the port holder comprises a rectangular holder body having an open top, the rectangular holder body comprising two opposing standing walls and a side wall connecting the two standing walls, the standing walls forming the holding plate. The rectangular frame body is adopted, the structure is simple and easy to manufacture, the top is open, and the drainage tube is conveniently guided from the open position to pass through the corresponding holding holes on the two holding frames.
Preferably, the holding plate has a plurality of holding holes, including two or more holding holes having the same aperture and two or more holding holes having different apertures. The drainage tubes with different specifications can be selected for use by the arrangement of the same and different holding holes, so that the drainage tubes are matched with different sampling devices for use, and the air sampling device is suitable for simultaneously performing air sampling by the different sampling devices.
Further preferably, the plurality of holding holes are arranged in a row, at least two rows of holding holes are provided in the up-down direction, and the holding hole diameters in the respective rows are the same or different. The design has higher manufacturing efficiency and attractive appearance.
More preferably, the height of the lowermost row of holding holes is 5 to 10cm. The design is convenient for sampling and instrument connection, and is not easy to cause pollution.
Preferably, the outlet end is also connected with the port holder, and the outlet of the drainage tube passes through the corresponding port holder to be connected with the sampling device. By adopting the design, the port retainers at the two ends of the drainage tube are consistent, the inlet and the outlet of the drainage tube do not need to be distinguished, and the use of the drainage assembly is further simplified.
Drawings
FIG. 1 is a schematic diagram of a gas sampling apparatus at an exhaust outlet of a smoking chamber according to the present utility model;
FIG. 2 is a schematic view of the drainage assembly of FIG. 1;
FIG. 3 is a schematic view of the port holder of FIG. 1;
wherein: 1-a drainage tube; 2-port holders; 3-smoking chamber; 4-an exhaust outlet; 5-sampling vehicle; 6-holding holes.
Detailed Description
In order to solve the problem of sampling and detecting the exhaust gas of a plurality of smoking chambers in a public place, the utility model provides a gas sampling device at an exhaust outlet of the smoking chambers, which mainly solves the problem by using a sampling vehicle and a drainage component.
Wherein, the sampling car uses the indoor air sampling car of bulletin number CN219277533U, and it has the structural design of sampling device such as convenient fixed sampling pipe. The drainage subassembly is mainly with the gas drainage that is located smoking room roof air exit department to sampling device on the car, and drainage tube in the drainage subassembly has hose section design, conveniently accomodates and extends, and the port holder design at drainage tube both ends plays the effect with the port fixed, keep in the preset position, reduces the manual work in the sampling process and assists, improves sampling efficiency.
The following describes the utility model in detail with reference to the drawings and specific examples.
The utility model relates to a gas sampling device at an exhaust outlet of a smoke suction chamber, which is shown in figures 1-3 and comprises a sampling vehicle, a drainage component and a sampling device.
The sampling vehicle is used for loading a sampling device, and the sampling device comprises conventional equipment such as a sampling tube, an air sampling pump and the like.
Referring to fig. 1 and 2, the drainage assembly includes a drainage tube 1 and port holders 2 connected to both ends of the drainage tube 1, the port holders 2 fixedly hold respective ends of the drainage tube 1 at a position at a certain height from a bottom supporting surface, the drainage tube 1 has an inlet end for sampling and an outlet end for mating connection with corresponding connectors of a sampling device. The inlet of the drainage tube 1 extends out of the port retainer at the inlet end so as to be convenient for contacting with the gas to be sampled, and the outlet of the drainage tube 1 extends out of the port retainer at the outlet end so as to be convenient for connecting with a joint of the sampling device.
Referring to fig. 1, a rectangular air outlet 4 is arranged at the top of the smoking chamber 3, the inlet end of the drainage component is placed at the rectangular air outlet, and at the moment, the inlet of the drainage tube 1 is ensured to be stably kept at the rectangular air outlet for sampling through a port retainer at the inlet end; the outlet end of the drainage component is placed on the sampling vehicle 5, and the outlet of the drainage tube 1 is ensured to be stably arranged on the sampling vehicle 5 and stably connected with a sampling device on the sampling vehicle 5 through a port retainer of the outlet end. The drainage tube 1 has a hose section design, and can be integrally or locally designed as a hose, so that the drainage tube can be conveniently stored and unfolded.
The port retainer can play a role in fixing and retaining the end part of the drainage tube, see fig. 3, and is a rectangular retainer body with an open top, and the rectangular retainer body comprises front and rear vertical walls and side walls connected between the front and rear vertical walls, wherein the front and rear vertical walls are provided with retaining holes 6 which are correspondingly arranged, and the end part of the drainage tube passes through the corresponding retaining holes to fix and retain the drainage tube at a position with a certain height from a bottom supporting surface of the drainage tube.
The number of the retaining holes on the front and rear vertical walls is multiple, and the retaining holes are arranged in two rows from top to bottom, the apertures of the retaining holes in the upper row are the same, and the apertures of the retaining holes in the lower row are gradually reduced from left to right. The height of the lower row of holes is 5-10 cm, and the interval between every two rows of holes is 3-5 cm. The number of the holding holes can be 10, 14, 16, 18 and 20, and the sizes of the holes are different (3 mm, 4mm, 5mm, 6mm and the like) so as to meet the requirements of different specifications of hoses to be matched with different sampling devices. The drainage tube also has different specifications (3 mm, 4mm, 5mm, 6mm, etc.) to be matched with the holding holes with different sizes.
The frame body of the port retainer can be made of plastics, polytetrafluoroethylene, metal or the like, and has the length, width and height specifications of 20cm, 10cm, 20cm, 5cm, 15cm, 10cm and the like. The hose material of the drainage tube is silica gel, rubber or nylon.
The sampling process of the present utility model is illustrated below.
When the formaldehyde in the air at the air outlet of the smoking room is sampled, the DNPH pipe is connected with an air sampling pump by referring to the standard GB/T18883-2022 to collect the formaldehyde in the air. Drainage tubes selected to match the DNPH tubes were secured to the inlet port holder and the outlet port holder. The inlet port retainer is arranged beside the exhaust outlet of the roof of the smoking room, and the length of the drainage tube is adjusted to enable the pipe end of the drainage tube to extend to the exhaust outlet of the roof of the smoking room. The sampling device is placed on a sampling vehicle, and the air inlet end of the DNPH tube is connected with a drainage tube matched with the port holder at the outlet end. The sampling flow of the air sampling pump is set to be 0.5L/min, the sampling time is 200min, the air at the air outlet of the smoking chamber is sampled, and the formaldehyde content is measured according to a standard method.
When the measurement of benzene, toluene, xylene and Total Volatile Organic Compounds (TVOC) in the air at the exhaust port of the smoking chamber is carried out. With reference to standard GB/T18883-2022, a thermal desorption sampling tube is connected to an air sampling pump to collect benzene, toluene, xylene and TVOC in the air. And the drainage tube which is matched with the thermal desorption sampling tube is selected to be fixed on the inlet port retainer and the outlet port retainer. The inlet port retainer is arranged beside the exhaust outlet of the roof of the smoking room, and the length of the drainage tube is adjusted to enable the pipe end of the drainage tube to extend to the exhaust outlet of the roof of the smoking room. The sampling device is placed on a sampling vehicle, and the air inlet end of the thermal desorption sampling tube is connected with a drainage tube matched with the port retainer at the outlet end. The flow of the air sampling pump is set to be 0.1L/min, the sampling time is 60min, the air at the air outlet of the smoking chamber is sampled, and the contents of benzene, toluene, xylene and TVOC are measured according to a standard method.
And when the nitrogen oxide in the air at the air outlet of the smoking chamber is sampled. With reference to standard HJ 479-2009, the absorber and the oxidizing bottle are connected to an air sampling pump to collect nitrogen oxides in the air. The drainage tube which is matched with the absorption bottle is fixed on the inlet port holder and the outlet port holder. The inlet port retainer is arranged beside the exhaust outlet of the roof of the smoking room, and the length of the drainage tube is adjusted to enable the pipe end of the drainage tube to extend to the exhaust outlet of the roof of the smoking room. The sampling device is placed on the sampling vehicle, and the air inlet end of the absorption bottle is connected with the matched drainage tube on the port holder of the outlet end. The flow of the air sampling pump is set to be 0.4L/min, the sampling time is 60min, the air at the air outlet of the smoking chamber is sampled, and the content of nitrogen oxides in the air is measured according to a standard method.
And (3) measuring and sampling formaldehyde, VOC compounds and nitrogen oxides in the air at the air outlet of the smoking chamber. And referring to the standards GB/T18883-2022 and GB/T12372, respectively adopting a DNPH tube, a thermal desorption sampling tube, an absorption bottle and an oxidation bottle to be respectively connected with an air sampling pump, and collecting formaldehyde, VOC compounds and nitrogen oxides in the air. And respectively selecting drainage tubes matched with the DNPH tube, the thermal desorption sampling tube and the absorption bottle to fix on the inlet port holder and the outlet port holder. The inlet port retainer is arranged beside the exhaust outlet of the roof of the smoking room, and the length of the drainage tube is adjusted to enable the pipe end of the drainage tube to extend to the exhaust outlet of the roof of the smoking room. The sampling devices of formaldehyde, VOC compounds and nitrogen oxides are all placed on a sampling vehicle, and the air inlet ends of the sampling devices are respectively connected with the matched drainage tubes on the port holders of the outlet ends. And respectively setting the sampling flow and the sampling time of the air sampling pump according to the standard to sample the air at the air outlet of the smoking chamber, and measuring the contents of formaldehyde, VOC compounds and nitrogen oxides in the air according to the standard method.
Taking four smoking chambers in a public place as an example, the gas sampling device at the exhaust outlet of the smoking chamber can rapidly sample the smoke at the exhaust outlet of each smoking chamber, and the sampling and detecting efficiency of the exhaust gas of the smoking chamber is improved.
Claims (8)
1. The utility model provides a smoke chamber air exit department gas sampling device, its characterized in that, including sampling car and place the sampling device on sampling car, still including being used for the gaseous drainage of smoke chamber air exit department to sampling device's drainage subassembly, the drainage subassembly is including having the drainage tube of hose section, the entrance point of drainage tube is connected with the port holder that is used for supporting drainage tube port, and sampling device is connected to the exit end of drainage tube.
2. The device for sampling gas at the outlet of a smoking chamber according to claim 1, wherein the port holder comprises a holding plate provided with a holding hole, and the end of the draft tube is inserted into the holding hole.
3. The device for sampling gas at the exhaust outlet of a smoking room according to claim 2, wherein the number of the holding plates is more than two, the two holding plates are arranged at intervals in parallel, the two holding plates are correspondingly provided with the holding holes, and the end parts of the drainage tubes pass through the holding holes on the two holding plates.
4. A smoke evacuation port location gas sampling assembly as claimed in claim 3 wherein said port holder comprises an open top rectangular frame body comprising two oppositely disposed upstanding walls and a side wall connecting said two upstanding walls, said upstanding walls forming said retaining plate.
5. The gas sampling apparatus according to any one of claims 2 to 4, wherein the plurality of holding holes in the holding plate include two or more holding holes having the same pore diameter and two or more holding holes having different pore diameters.
6. The device for sampling gas at the outlet of a smoking chamber according to claim 5, wherein the plurality of holding holes are arranged in a row, and at least two rows of holding holes are provided in the up-down direction, and the diameters of the holding holes in each row are the same or different.
7. The smoke exhaust ventilator of claim 6 wherein the height of the lowermost row of retaining holes is 5-10 cm.
8. The device for sampling gas at the exhaust outlet of a smoking room according to claim 1, wherein the outlet end is also connected with the port holder, and the outlet of the drainage tube is connected with the sampling device through the corresponding port holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322317204.5U CN220729771U (en) | 2023-08-28 | 2023-08-28 | Gas sampling device at exhaust outlet of smoking room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322317204.5U CN220729771U (en) | 2023-08-28 | 2023-08-28 | Gas sampling device at exhaust outlet of smoking room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220729771U true CN220729771U (en) | 2024-04-05 |
Family
ID=90498355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322317204.5U Active CN220729771U (en) | 2023-08-28 | 2023-08-28 | Gas sampling device at exhaust outlet of smoking room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220729771U (en) |
-
2023
- 2023-08-28 CN CN202322317204.5U patent/CN220729771U/en active Active
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| GR01 | Patent grant |