CN217520843U

CN217520843U - Indoor volatile organic compound gas sampling machine

Info

Publication number: CN217520843U
Application number: CN202220847080.4U
Authority: CN
Inventors: 龙双双; 沙一娜
Original assignee: Beijing Zihengxuan Construction Engineering Inspection Co ltd
Current assignee: Beijing Zihengxuan Construction Engineering Inspection Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-09-30
Anticipated expiration: 2032-04-13

Abstract

The application discloses an indoor volatile organic compound gas sampling machine, which relates to the technical field of organic compound gas sampling and comprises a sampling machine body and a cooling tank body arranged above the sampling machine body, wherein an accommodating cavity in the bottom end of the sampling machine body is communicated with an air inlet pipe, the inner wall of the air inlet pipe is provided with a suction fan, one end, far away from the sampling machine body, of the air inlet pipe is communicated with an air inlet, the outer surface of the air inlet pipe is provided with a check valve, the inner bottom wall of the sampling machine body is provided with a heater, the inner side wall of the sampling machine body is fixedly connected with a partition plate, the upper surface of the partition plate is provided with a guide pipe, the upper surface of the sampling machine body is provided with a positioning hole, two ends of the upper surface of the cooling tank body are provided with through holes, and the lower surface of the cooling tank body is fixedly connected with a condensing plate; through the matching of the structures, the compound samples under different states can be sampled.

Description

Indoor volatile organic compound gas sampling machine

Technical Field

The application relates to the technical field of organic compound gas sampling, in particular to an indoor volatile organic compound gas sampling machine.

Background

The volatile organic compounds have great influence on the health of human bodies, and when the concentration of the volatile organic compounds reaches a certain degree, people feel headache, nausea, vomiting, hypodynamia and the like after the volatile organic compounds are inhaled by people, and the internal organs and the nervous systems of the people can be injured; the world health organization defines TVOC as a generic term for volatile organic compounds having melting points below room temperature and boiling points between 50 ℃ and 260 ℃, and can be further divided into eight categories according to the chemical structure: alkanes, aromatic hydrocarbons, alkenes, halocarbons, esters, aldehydes, ketones, and others.

In order to collect the organic compounds in the gas, a room volatile organic compound gas sampling machine is provided for the purpose.

SUMMERY OF THE UTILITY MODEL

In order to collect organic compounds in gas, the application provides a sample collector for indoor volatile organic compound gas.

The application provides an indoor volatile organic compound gas sampling machine, adopts following technical scheme:

an indoor volatile organic compound gas sampling machine comprises a sampling machine body and a cooling groove body arranged above the sampling machine body, wherein an accommodating cavity in the bottom end of the sampling machine body is communicated with an air inlet pipe, the inner wall of the air inlet pipe is provided with a suction fan, one end, far away from the sampling machine body, of the air inlet pipe is communicated with an air inlet, the outer surface of the air inlet pipe is provided with a one-way valve, the inner bottom wall of the sampling machine body is provided with a heater, the inner side wall of the sampling machine body is fixedly connected with a partition plate, the upper surface of the partition plate is provided with a guide pipe, the upper surface of the sampling machine body is provided with a positioning hole, two ends of the upper surface of the cooling groove body are provided with through holes, and the lower surface of the cooling groove body is fixedly connected with a condensing plate;

the utility model discloses a sampling machine, including sampling machine body, threaded groove body, screwed pipe, filter screen, graphite foam block layer, the upper end of sampling machine body is inside to be held the chamber intercommunication and is had the gas outlet, the upper end left side inner wall fixedly connected with threaded groove body of sampling machine body, just the inside of threaded groove body hold the chamber intercommunication with the inside of gas outlet holds the chamber and is linked together, the internal surface threaded connection of threaded groove body has the screwed pipe, the inner wall of screwed pipe both ends opening part is provided with the filter screen, two between the filter screen the inner wall of screwed pipe has set gradually quartz glass cotton layer and graphite foam block layer from the right side to a left side.

By adopting the technical scheme, the indoor gas can move in a single direction towards the inner cavity at the bottom end of the sampler body by utilizing the matching of the air inlet pipe, the air inlet, the suction fan and the one-way valve, then the heater is started to heat the gas entering the inner cavity at the bottom end of the sampler body to raise the temperature of the gas, the heated gas can pass through the partition plate through the guide pipe to enter the inner cavity at the upper end of the sampler body and move upwards, when the gas containing organic compounds with higher temperature contacts with the condensing plate with lower temperature, condensation can occur, solid condensate is generated on the lower surface of the condensing plate, and liquid generated by condensation slowly drops on the upper surface of the partition plate, then the staff alright with can take off the cooling cell body from the top of sampler body to sample solid coagulum and liquid, can sample the compound sample under the different states through the cooperation of above structure.

Optionally, the number of the through holes and the positioning holes is the same as the inner aperture, and bolts are connected to the inner surfaces of the through holes and the positioning holes in a threaded manner.

Through adopting above-mentioned technical scheme, rotate behind the inside of inserting through-hole and locating hole with the bolt and can fix the sampler body and the cooling tank body after cup jointing.

Optionally, the cooling liquid is arranged inside the groove of the cooling tank body.

By adopting the technical scheme, the cooling liquid can cool the condensation plate through the bottom surface of the cooling tank body.

Optionally, pull rings are arranged on the outer surfaces of the left side and the right side of the upper end of the cooling tank body.

By adopting the technical scheme, the cooling tank body is conveniently sleeved on the inner wall of the sampler body or taken out of the inner wall of the sampler body by holding the pull ring with a hand.

Optionally, the outer surface of the pull ring is bonded with an anti-slip rubber sleeve.

Through adopting above-mentioned technical scheme, the frictional force between palm and the pull ring can be increased to the antiskid gum cover, is convenient for hold.

Optionally, the input end of the heater is electrically connected to an external power supply.

By adopting the technical scheme, the external power supply can provide electric energy for the starting of the heater.

In summary, the present application includes at least one of the following advantages:

1. through the intake pipe, the air inlet, the cooperation of suction fan and check valve can make indoor gas be one-way motion to the inside appearance chamber in bottom of sampler body, start the heater and heat the gas that enters into the inside appearance chamber in sampler body bottom after that and make its intensification, gas after the heating can pass the inside appearance chamber in upper end and the upward movement that the baffle entered into the sampler body through the pipe, can take place the condensation after the higher gas that contains organic compound of temperature and the lower condensation plate contact of temperature, produce the solid condensate at the lower surface of condensation plate, the upper surface of baffle can slowly drip to the liquid that the condensation produced simultaneously, then the staff alright take off the cooling cell body from the top of sampler body, so that sample solid condensate and liquid, the realization is to the collection of organic compound in the gas.

2. When the gas that the inside appearance chamber of sampler body upper end was stored is more, because the atmospheric pressure difference that inside air and outside air formed for inside air can pass the screwed pipe and arrange to the outside atmosphere from the gas outlet in, and at this in-process, the inside filter screen of screwed pipe, graphite alkene foam block layer and the cotton layer of quartz glass can filter organic compound in the air layer upon layer, forms a fine organic compound adsorption environment structure, and follow-up can be sampled adsorbed compound sample.

Drawings

FIG. 1 is a cross-sectional view of the present application;

FIG. 2 is a perspective view of the external structure of the present application;

fig. 3 is an enlarged view of fig. 1 at a in the present application.

Description of reference numerals: 1. a sampler body; 2. an air inlet pipe; 3. an air inlet; 4. a one-way valve; 5. a heater; 6. a partition plate; 7. a conduit; 8. cooling the tank body; 9. a condensing plate; 10. a through hole; 11. positioning holes; 12. a bolt; 13. a pull ring; 14. an air outlet; 15. a threaded groove body; 16. a threaded pipe; 17. a filter screen; 18. a graphene foam block layer; 19. a quartz glass wool layer; 20. a suction fan.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The application discloses indoor volatile organic compound gas sampling machine. Referring to fig. 1 and 2, an indoor volatile organic compound gas sampling machine comprises a sampling machine body 1 and a cooling tank body 8 arranged above the sampling machine body 1, pull rings 13 are arranged on the outer surfaces of the left side and the right side of the upper end of the cooling tank body 8, anti-skid rubber sleeves are bonded on the outer surfaces of the pull rings 13, and the cooling tank body 8 can be sleeved on the inner wall of the sampling machine body 1 by holding the pull rings 13 with hands; locating hole 11 has been seted up to the upper surface of sampling machine body 1, and through-hole 10 has been seted up at the upper surface both ends of cooling cell body 8, and the quantity and the inside aperture size of through-hole 10 and locating hole 11 are the same, and the internal surface threaded connection of through-hole 10 and locating hole 11 has bolt 12, inserts bolt 12 and rotates after the inside of through-hole 10 and locating hole 11 and can fix sampling machine body 1 and cooling cell body 8 after cup jointing.

Referring to fig. 1 and 2, a partition plate 6 is fixedly connected to the inner side wall of the sampler body 1, and the partition plate 6 divides an inner cavity of the sampler body 1 into an upper part and a lower part; an inner cavity at the bottom end of the sampling machine body 1 is communicated with an air inlet pipe 2, the inner wall of the air inlet pipe 2 is provided with a suction fan 20, one end of the air inlet pipe 2, which is far away from the sampling machine body 1, is communicated with an air inlet 3, the outer surface of the air inlet pipe 2 is provided with a one-way valve 4, the one-way valve 4 is opened, and the suction fan 20 is started, so that indoor air can continuously move to the inner cavity at the bottom end of the sampling machine body 1 in a one-way mode from the air inlet 3 and the air inlet pipe 2; the bottom wall of the inner part of the sampler body 1 is provided with a heater 5, the input end of the heater 5 is electrically connected with an external power supply, and the heater 5 is started to heat the gas entering the inner cavity at the bottom end of the sampler body 1 so as to heat the gas; pipe 7 has been seted up to the upper surface of baffle 6, gas after the heating passes baffle 6 through pipe 7 and enters into the inside appearance chamber in upper end and the upward movement of sampler body 1, the inside coolant liquid that is provided with of recess of cooling cell body 8, the lower fixed surface of cooling cell body 8 is connected with condensing plate 9, the coolant liquid effect that can make condensing plate 9 under the temperature reduces, and can take place condensation phenomenon after the gaseous and the lower condensing plate 9 contact of temperature that contain organic compound, produce solid coagulation thing or liquid at condensing plate 9's lower surface, then the staff alright sample with the liquid to the solid coagulation thing of condensing plate 9 lower surface and baffle 6 upper surface, the realization samples the compound sample under the different states.

Referring to fig. 1 and 3, an inner cavity at the upper end of a sampler body 1 is communicated with an air outlet 14, a threaded groove body 15 is fixedly connected to the inner wall of the left side at the upper end of the sampler body 1, the inner cavity of the threaded groove body 15 is communicated with the inner cavity of the air outlet 14, a threaded pipe 16 is connected to the inner surface of the threaded groove body 15 in a threaded manner, and when air pressure difference is formed between the internal air and the external air, the internal air can pass through the threaded pipe 16 and be discharged from the air outlet 14 to the external atmosphere; the inner walls of openings at two ends of the threaded pipe 16 are provided with filter screens 17, the inner wall of the threaded pipe 16 between the two filter screens 17 is sequentially provided with a quartz glass wool layer 19 and a graphene foam block layer 18 from right to left, the specification of the filter screens 17 is 300 meshes, and the filter screens 17 can limit the positions of the quartz glass wool layer 19 and the graphene foam block layer 18 and cannot influence the filtration of gas; a good organic compound adsorption environment structure is formed by matching the filter screen 17, the graphene foam block layer 18 and the quartz glass wool layer 19, so that an adsorbed compound sample can be sampled conveniently.

The application principle of an indoor volatile organic compound gas sampling machine is as follows:

when the sampling machine body 1 is used for sampling, the sampling machine body 1 is placed indoors and connected with an external power supply, then cooling liquid is poured into the groove on the cooling groove body 8, and the cooling liquid is properly replaced according to the sampling duration.

When sampling is carried out, the one-way valve 4 is opened, the suction fan 20 is started, so that indoor air continuously moves towards the inner cavity at the bottom end of the sampler body 1 from the air inlet 3 and the air inlet pipe 2 in a one-way mode, then the heater 5 is started to heat the air entering the inner cavity at the bottom end of the sampler body 1 so as to heat the air, the heated air can pass through the partition plate 6 through the guide pipe 7, enter the inner cavity at the upper end of the sampler body 1 and move upwards, the surface temperature of the condensation plate 9 is lower under the action of cooling liquid, condensation can occur after the air containing organic compounds is contacted with the condensation plate 9 with lower temperature, solid or liquid is generated on the lower surface of the condensation plate 9, meanwhile, the liquid can slowly drop onto the upper surface of the partition plate 6, the liquid is extracted from the through hole 10 and the positioning hole 11 by rotating the bolt 12 by a worker, then the cooling tank body 8 can be taken out from the upper part of the sampler body 1 by holding the pull ring 13 by a hand, so as to sample the solid condensate on the lower surface of the condensing plate 9 and the liquid on the upper surface of the partition plate 6, and realize the sampling of the compound samples under different states.

When the gas stored in the inner cavity at the upper end of the sampler body 1 is more, the inner air can pass through the threaded pipe 16 and be discharged from the air outlet 14 to the outside atmosphere due to the air pressure difference formed by the inner air and the outer air, and in the process, the filter screen 17, the graphene foam block layer 18 and the quartz glass wool layer 19 in the threaded pipe 16 can filter organic compounds in the air layer by layer to form a good organic compound adsorption environment structure so as to sample the adsorbed compound sample.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an indoor volatile organic compound gas sampling machine, includes sampler body (1) and sets up cooling tank body (8) in sampler body (1) top, its characterized in that: an accommodating cavity in the bottom end of the sampler body (1) is communicated with an air inlet pipe (2), the inner wall of the air inlet pipe (2) is provided with a suction fan (20), one end, far away from the sampler body (1), of the air inlet pipe (2) is communicated with an air inlet (3), the outer surface of the air inlet pipe (2) is provided with a one-way valve (4), the inner bottom wall of the sampler body (1) is provided with a heater (5), the inner side wall of the sampler body (1) is fixedly connected with a partition plate (6), the upper surface of the partition plate (6) is provided with a conduit (7), the upper surface of the sampler body (1) is provided with a positioning hole (11), two ends of the upper surface of the cooling tank body (8) are provided with through holes (10), and the lower surface of the cooling tank body (8) is fixedly connected with a condensing plate (9);

the utility model discloses a sampling machine, including sampling machine body (1), inner chamber intercommunication in the upper end of sampling machine body (1) has gas outlet (14), the upper end left side inner wall fixedly connected with screw thread cell body (15) of sampling machine body (1), just the inside of screw thread cell body (15) hold the chamber intercommunication with the inside of gas outlet (14) holds the chamber and is linked together, the internal surface threaded connection of screw thread cell body (15) has screwed pipe (16), the inner wall of screwed pipe (16) both ends opening part is provided with filter screen (17), two between filter screen (17) the inner wall of screwed pipe (16) has set gradually quartz glass cotton layer (19) and graphite alkene foam block layer (18) from the right side to a left side.

2. A room voc gas sampling machine according to claim 1, wherein: the number and the inner hole diameter of the through holes (10) and the positioning holes (11) are the same, and bolts (12) are connected to the inner surfaces of the through holes (10) and the positioning holes (11) in a threaded mode.

3. A room voc gas sampling machine according to claim 1, wherein: and cooling liquid is arranged in the groove of the cooling tank body (8).

4. A room voc gas sampling machine according to claim 1, wherein: pull rings (13) are arranged on the outer surfaces of the left side and the right side of the upper end of the cooling tank body (8).

5. The indoor VOC gas sampling machine of claim 4, wherein: the outer surface of the pull ring (13) is bonded with an anti-skid rubber sleeve.

6. A room voc gas sampling machine according to claim 1, wherein: the input end of the heater (5) is electrically connected with an external power supply.