CN213813508U

CN213813508U - Volatile organic compound detection device in pollution source waste gas

Info

Publication number: CN213813508U
Application number: CN202022627121.2U
Authority: CN
Inventors: 张芸; 朱艳霞; 庄志辉; 李耘娣; 黄敏; 黄馨乐
Original assignee: Guangdong Shao Testing Co ltd
Current assignee: Guangdong Shao Testing Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-07-27
Anticipated expiration: 2030-11-13

Abstract

The utility model relates to a waste gas detection technical field specifically is a volatile organic compounds detection device in pollution source waste gas, including the equipment principal, the top swing joint of equipment principal has the dryer, and the overlap joint of dryer top has the top cap, install the fan in the dryer, the wind-guiding chamber has been seted up to the bottom of dryer, and has the drainage case through hose connection in the wind-guiding chamber, the bottom of drainage case is connected with accepts the jar, the inside bottom of equipment principal and the one side that is located accepting the jar are provided with first gunbarrel, and the inside bottom of equipment principal is located the opposite side of accepting the jar and is provided with the second gunbarrel, the front end gomphosis of equipment principal has the observation window. The device can actively adsorb volatile organic compounds in the air, and provides a sample for the detection device to detect, so as to solve the defects that the detection device is directly exposed in the air to detect, the time consumption is long, the efficiency is low, and the health of a person is damaged to some extent in the existing detection method.

Description

Volatile organic compound detection device in pollution source waste gas

Technical Field

The utility model relates to an exhaust-gas detection technical field specifically is a volatile organic compounds detection device in pollution source waste gas.

Background

Volatile organic compounds are important precursors for forming secondary pollutants such as fine particulate matters and ozone, are easy to cause environmental problems such as haze and atmospheric ozone pollution due to excessive discharge, and are generally divided into several categories including non-methane hydrocarbon compounds, nitrogen-containing organic compounds, sulfur-containing organic compounds and the like.

Most of existing detection devices expose a detection mechanism in the air to extract pollutants in the air, but the method is low in efficiency and different in pollution degree of different levels of spaces, so that multiple times of measurement are needed to obtain an average value, and a certain time needs to be waited for in the measurement process, so that the time of workers is delayed, and the workers are exposed in the polluted air along with equipment for a long time, and certain influence is also exerted on the health of the workers. Therefore, the detection device for volatile organic compounds in the exhaust gas of the pollution source is provided by the technical personnel in the field, so as to solve the problems in the background technology.

Disclosure of Invention

An object of the utility model is to provide a volatile organic compounds detection device in pollution sources waste gas to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a volatile organic compounds detection device in pollution sources waste gas, includes the equipment main part, the top swing joint of equipment main part has the dryer, and the overlap joint of dryer top has the top cap, install the fan in the dryer, the wind-guiding chamber has been seted up to the bottom of dryer, and has the drainage case through hose connection in the wind-guiding chamber, the bottom of drainage case is connected with accepts the jar, the inside bottom of equipment main part and the one side that is located accepting the jar are provided with first gunbarrel, and the inside bottom of equipment main part is located the opposite side of accepting the jar and is provided with the second gunbarrel, the front end gomphosis of equipment main part has the observation window, and one side of equipment main part has the closing plate through hinge swing joint, the welding of the bottom four corners department of equipment main part has the stabilizer blade.

As a further aspect of the present invention: the lower extreme welding of dryer has the link, and the inside upper end symmetrical welding of equipment main part has a set of mount, the bottom of mount is connected with the screw rod through the bearing, and the link cup joints on the screw rod.

As a further aspect of the present invention: the top of screw rod is connected with the motor, the motor is fixed on the inside top of equipment main part, and the motor is located the mount.

As a further aspect of the present invention: the inner wall of the upper end of the drainage box is fixed with a spray pipe, the tail end of the spray pipe is sleeved with a guide pipe, and the tail end of the guide pipe is inserted into the second settling tank and is externally connected with a water pump.

As a further aspect of the present invention: all cup jointed the steel hoop on first gunbarrel and the second gunbarrel, and the steel hoop is fixed on the inner wall of equipment main part, there is the fall of half first gunbarrel height between first gunbarrel and the second gunbarrel.

As a further aspect of the present invention: be connected with the connecting pipe between the top of first gunbarrel and the lower extreme of second gunbarrel, and the bottom threaded connection of first gunbarrel has first sample bottle, the bottom threaded connection of second gunbarrel has the second sample bottle.

As a further aspect of the present invention: the middle part of accepting the jar and the lower extreme of first gunbarrel is connected with the overflow pipe, and the inside of accepting the jar is located the below of overflow pipe and is provided with the fixed slot, and installs the dialysis membrane in the fixed slot.

Compared with the prior art, the beneficial effects of the utility model are that: the device can actively adsorb volatile organic compounds in the air and provide samples for the detection of the detection device, so as to solve the defects that the detection device is directly exposed in the air for detection, the time consumption is long, the efficiency is low and the health of a person is damaged in the existing detection method, the device is provided with a fan, the volatile organic compounds in the air are adsorbed by utilizing the suction force of the fan, two settling tanks and a receiving tank are arranged in the device, organic solvents are injected into the settling tanks and the receiving tank, the organic solvents are conveyed into a spray pipe by utilizing a water pump and are sprayed to the air sucked by the fan, so that the organic compounds in the air are stripped and gathered in the receiving tank, a valve is arranged at the bottom of the receiving tank, the valve needs to be directly opened by a sampling chamber, and a dialysis membrane is also arranged in the receiving tank and is filtered, the filtered organic solvent enters the first settling tank through the liquid level difference to be settled, the air pressure difference is recycled, the organic solvent enters the second settling tank from the first settling tank to circulate, and sampling products are arranged at the bottoms of the first settling tank and the second settling tank to perform secondary sampling.

Drawings

FIG. 1 is a schematic structural diagram of a detection apparatus for volatile organic compounds in a pollutant waste gas;

FIG. 2 is a schematic structural diagram of an internal structure of a detection device for volatile organic compounds in a pollutant source exhaust gas;

fig. 3 is a schematic structural diagram of a sampling mechanism in a device for detecting volatile organic compounds in a pollution source exhaust gas.

In the figure: 1. a top cover; 2. an air duct; 3. an apparatus main body; 4. an observation window; 5. a support leg; 6. a sealing plate; 7. a screw; 8. a connecting frame; 9. a fixed mount; 10. a first settling tank; 11. a steel hoop; 12. a first sampling bottle; 13. a receiving tank; 14. a second sampling bottle; 15. a second settling tank; 16. a drainage box; 17. a conduit; 18. a shower pipe; 19. a wind guide cavity; 20. a fan; 21. a connecting pipe; 22. an overflow pipe; 23. fixing grooves; 24. a dialysis membrane; 25. a motor.

Detailed Description

Referring to fig. 1 to 3, in the embodiment of the present invention: the utility model provides a volatile organic compounds detection device in pollution sources waste gas, including equipment main part 3, the top swing joint of equipment main part 3 has

dryer

2, and 2 top overlap joints of dryer have top cap 1, install fan 20 in the dryer 2, wind-guiding chamber 19 has been seted up to the bottom of dryer 2, and there is drainage box 16 through hose connection in the wind-guiding chamber 19, the bottom of drainage box 16 is connected with accepts jar 13, the inside bottom of equipment main part 3 and be located the one side of accepting jar 13 and be provided with first gunbarrel 10, and the inside bottom of equipment main part 3 is located the opposite side of accepting jar 13 and is provided with second gunbarrel 15, the front end gomphosis of equipment main part 3 has observation window 4, and there is closing plate 6 one side of equipment main part 3 through hinge swing joint, the welding of the bottom four corners department of equipment main part 3 has stabilizer blade 5.

In fig. 2, the lower end of the air duct 2 is welded with the connecting frame 8, the upper end of the inside of the equipment main body 3 is symmetrically welded with the group of fixing frames 9, the bottom of the fixing frame 9 is connected with the screw 7 through the bearing, the connecting frame 8 is sleeved on the screw 7, the connecting frame 8 is used for fixing the air duct 2, the connecting frame 8 is driven to lift through the rotation of the screw 7, and then the air duct 2 protrudes out of the equipment main body 3 to be sucked or embedded into the equipment main body 3 to be sealed.

In fig. 2, a motor 25 is connected to the top of the screw 7, the motor 25 is fixed to the inner top end of the main body 3, the motor 25 is located in the fixing frame 9, the motor 25 provides power for the rotation of the screw 7, and the fixing frame 9 is used for fixing the screw 7.

In fig. 2, a spray pipe 18 is fixed on the inner wall of the upper end of the drainage box 16, the end of the spray pipe 18 is sleeved with a guide pipe 17, the end of the guide pipe 17 is inserted into the second settling tank 15 and is externally connected with a water pump, the spray pipe 18 is used for spraying an organic solvent, so that volatile organic compounds in air sucked by the fan 20 are separated, the organic solvent is sucked by the water pump and is sent into the spray pipe 18 through the guide pipe 17.

In fig. 2, all cup jointed steel hoop 11 on first precipitation tank 10 and the second precipitation tank 15, and steel hoop 11 fixes on the inner wall of equipment subject 3, there is the fall of half first precipitation tank 10 height between first precipitation tank 10 and the second precipitation tank 15, steel hoop 11's effect is fixed first precipitation tank 10 and second precipitation tank 15, the reason that sets up the fall is that to utilize the fall to make the volatile organic compounds in the organic solvent deposit, and the volatile organic solvent of sediment can not enter into in the second precipitation tank 15 from first precipitation tank 10.

In fig. 3, be connected with connecting pipe 21 between the top of first gunbarrel 10 and the lower extreme of second gunbarrel 15, and the bottom threaded connection of first gunbarrel 10 has first sample bottle 12, and the bottom threaded connection of second gunbarrel 15 has second sample bottle 14, carries out organic solvent's transport through connecting pipe 21 between first gunbarrel 10 and the second gunbarrel 15, and first sample bottle 12 and second sample bottle 14 are used for examining time measuring, conveniently take out reagent.

In fig. 3, the middle part of accepting jar 13 and the lower extreme of first precipitation tank 10 are connected with overflow pipe 22, and the inside of accepting jar 13 is located overflow pipe 22's below and is provided with fixed slot 23, and install dialysis membrane 24 in the fixed slot 23, overflow pipe 22's effect is when accepting the organic solvent in the jar 13 and reaching the take the altitude, enter into first precipitation tank 10 inside through overflow pipe 22, and the organic solvent after spraying directly enters into dialysis membrane 24 below, along with the liquid level increases, dialysis membrane 24 can completely cut off the volatile organic compounds in the organic solvent.

The utility model discloses a theory of operation is: starting a motor 25 (model: ZGA25RP), wherein the motor 25 drives a screw 7 to rotate, the screw 7 lifts a connecting frame 8 upwards when rotating, so that an air duct 2 protrudes out of the equipment main body 3, a fan 20 in the air duct 2 sucks air, a water pump in a second settling tank 15 is started at the same time, organic solution is conveyed into a spray pipe 18, the air sucked by the fan 20 is purified by organic solvent spray, volatile organic matters enter a receiving tank 13 along with the organic solution, the sprayed organic solution directly enters a dialysis membrane 24, the dialysis membrane 24 intercepts the volatile organic matters in the organic solvent along with the increase of the liquid level, the organic solvent enters a first settling tank 10 through an overflow pipe 22, the organic solvent continues to settle in the first settling tank 10, and sample sampling can be carried out through a first sampling bottle 12, the organic solvent with the air pressure difference lower than that of the settling management enters the second settling tank 15 through a connecting pipe 21 due to the formation of the suction force of the water pump, a second sampling bottle 14 is also arranged at the bottom of the second settling tank 15.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a volatile organic compounds detection device in pollution sources waste gas, includes equipment main part (3), its characterized in that: the top of the equipment main body (3) is movably connected with an air duct (2), the top of the air duct (2) is lapped with a top cover (1), a fan (20) is arranged in the air duct (2), an air guide cavity (19) is arranged at the bottom end of the air duct (2), a drainage box (16) is connected in the air guide cavity (19) through a hose, the bottom end of the drainage box (16) is connected with a receiving tank (13), a first sedimentation tank (10) is arranged at the bottom end inside the equipment main body (3) and at one side of the receiving tank (13), and a second sedimentation tank (15) is arranged at the bottom end of the interior of the equipment main body (3) and positioned at the other side of the receiving tank (13), an observation window (4) is embedded at the front end of the equipment main body (3), and one side of the equipment main body (3) is movably connected with a sealing plate (6) through a hinge, the four corners of the bottom end of the equipment main body (3) are welded with support legs (5).

2. The device for detecting the volatile organic compounds in the pollution source waste gas according to claim 1, wherein a connecting frame (8) is welded at the lower end of the air duct (2), a group of fixing frames (9) are symmetrically welded at the upper end of the interior of the device main body (3), the bottom of each fixing frame (9) is connected with a screw (7) through a bearing, and the connecting frame (8) is sleeved on the screw (7).

3. The device for detecting the volatile organic compounds in the exhaust gas of the pollution source according to claim 2, wherein a motor (25) is connected to the top of the screw (7), the motor (25) is fixed on the top end of the inside of the equipment main body (3), and the motor (25) is located in the fixing frame (9).

4. The device for detecting the volatile organic compounds in the pollutant source waste gas according to claim 1, characterized in that a spray pipe (18) is fixed on the inner wall of the upper end of the drainage box (16), a conduit (17) is sleeved at the tail end of the spray pipe (18), and the tail end of the conduit (17) is inserted in the second settling tank (15) and externally connected with a water pump.

5. The device for detecting the volatile organic compounds in the pollutant source waste gas according to claim 1, wherein the first settling tank (10) and the second settling tank (15) are sleeved with steel hoops (11), the steel hoops (11) are fixed on the inner wall of the equipment main body (3), and a half height drop of the first settling tank (10) exists between the first settling tank (10) and the second settling tank (15).

6. The device for detecting the volatile organic compounds in the exhaust gas of the pollution source according to claim 1, wherein a connecting pipe (21) is connected between the top of the first settling tank (10) and the lower end of the second settling tank (15), the bottom of the first settling tank (10) is in threaded connection with a first sampling bottle (12), and the bottom of the second settling tank (15) is in threaded connection with a second sampling bottle (14).

7. The device for detecting the volatile organic compounds in the exhaust gas of the pollution source according to claim 1, wherein an overflow pipe (22) is connected to the middle part of the receiving tank (13) and the lower end of the first settling tank (10), a fixing groove (23) is arranged in the receiving tank (13) below the overflow pipe (22), and a dialysis membrane (24) is installed in the fixing groove (23).