CN220289141U - Sampling device is discharged to unorganization of enterprise's waste gas VOCs - Google Patents
Sampling device is discharged to unorganization of enterprise's waste gas VOCs Download PDFInfo
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- CN220289141U CN220289141U CN202321951068.9U CN202321951068U CN220289141U CN 220289141 U CN220289141 U CN 220289141U CN 202321951068 U CN202321951068 U CN 202321951068U CN 220289141 U CN220289141 U CN 220289141U
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- 238000005070 sampling Methods 0.000 title claims abstract description 89
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 32
- 239000002912 waste gas Substances 0.000 title claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 56
- 238000000605 extraction Methods 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 claims description 10
- 230000035939 shock Effects 0.000 claims 1
- 238000013016 damping Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an enterprise waste gas VOCs (volatile organic compounds) unorganized emission sampling device, which comprises a bottom plate and a frame, wherein the frame is fixed on the bottom plate, a plurality of storage tanks are arranged on the bottom plate, gas sampling tanks are arranged in the storage tanks, valves are arranged on interfaces of the gas sampling tanks, the interfaces of the gas sampling tanks are communicated with a main pipe through a first branch pipe, the main pipe is connected with an extraction opening of an extraction pump through a second branch pipe, a first stop valve is arranged on the second branch pipe, and an air outlet of the extraction pump is connected with an air outlet pipe; the main pipe is connected with the outlet of the flow controller through the third branch pipe, the main pipe is connected with the first outlet of the three-way valve, and the second outlet of the three-way valve is connected with the inlet of the flow controller. The utility model provides an unorganized emission sampling device for waste gas VOCs of enterprises, which can be used for evacuating residual gas in a gas sampling tank through an air pump to form vacuum after a second stop valve is closed, and automatically sucking and sampling the gas sampling tank after the air pump and a first stop valve are closed.
Description
Technical Field
The utility model relates to the technical field of waste gas sampling, in particular to an unorganized emission sampling device for waste gas VOCs of enterprises.
Background
VOCs waste gas is a command organic matter. Volatile Organic Compounds (VOCs) are defined by the world health organization to be various organic compounds with boiling points of 50-260 ℃ under normal pressure, and enterprises can produce VOCs waste gas when producing materials. The inorganized emission means that no airtight equipment or imperfect sealing measures leak in the production process, waste gas does not pass through an exhaust funnel or a chimney, and pollutants are directly discharged to the environment or are diffused from an open-air operation place, a waste stacking place and the like. The unorganized emission is an important way for VOC s to enter the atmospheric environment, the waste gas discharged by the unorganized emission is accumulated daily and monthly, the harm to the environment is not neglected, the emission source is low in height, the pollution area is concentrated, the pollution area is in a ground diffuse shape, the duration is long, and the harm is large.
Before detecting VOCs waste gas, the waste gas needs to be sampled by using an enterprise waste gas VOCs unorganized emission sampling device, the traditional sampling device is provided with a sampling bag and a sampling tank, the sampling bag and the sampling tank are generally processed in vacuum, the sampling tank can automatically suck air after a valve is opened, the sampling bag is softer and can not automatically suck air, and the sampling bag needs to be matched with an air pump. The vacuum tank is very convenient to use, but has higher strength requirement on the tank body, larger transportation risk, heavier self and inconvenient movement; the suction pump itself is also heavy and inconvenient to move. Based on the problems of the prior art, the utility model provides the enterprise waste gas VOCs unorganized emission sampling device which is excellent in comprehensive performance and convenient to use.
Disclosure of Invention
1. The technical problems to be solved are as follows:
aiming at the technical problems, the utility model provides an unorganized emission sampling device for waste gas VOCs of enterprises.
2. The technical scheme is as follows:
the utility model provides an unorganized emission sampling device of enterprise waste gas VOCs, includes bottom plate and frame, and the frame is fixed on the bottom plate, is equipped with a plurality of thing grooves of putting on the bottom plate, puts the thing inslot and places the gas sampling jar, is equipped with the valve on the interface of gas sampling jar, and the interface of gas sampling jar passes through first branch pipe intercommunication house steward, and the house steward passes through the extraction opening of second branch pipe connection aspiration pump, installs first stop valve on the second branch pipe, and the outlet duct is connected to the gas outlet of aspiration pump; the main pipe is connected with an outlet of the flow controller through a third branch pipe, the main pipe is connected with a first outlet of the three-way valve, a second outlet of the three-way valve is connected with an inlet of the flow controller, an inlet of the three-way valve is connected with a dust filter, the dust filter is connected with an air inlet pipe, and a second stop valve is arranged on the air inlet pipe.
Further, the frame is divided into an upper layer and a lower layer by the diaphragm, the main pipe is arranged above the diaphragm, the first branch pipe penetrates through the diaphragm and then is connected with the main pipe, and the air extracting pump, the flow controller, the three-way valve and the dust filter are all arranged above the diaphragm.
Further, a storage battery is arranged above the transverse plate.
Further, the interface of the gas sampling tank is detachably connected with the first branch pipe, and particularly can be connected through a quick connector.
Further, a vacuum gauge and a handle frame are arranged on the gas sampling tank.
Further, a damping rubber pad is arranged in the storage groove.
Further, the top of frame is equipped with the roof, and the outlet duct passes the roof, and is equipped with the joint of giving vent to anger on the export of outlet duct, and the joint of giving vent to anger can connect the gas sampling bag.
Further, a storage cabinet is arranged on the frame, and a cabinet door is hinged to the storage cabinet.
Further, a plurality of universal wheels are installed on the bottom surface of the bottom plate, and a pushing handle is installed on one side of the frame.
3. The beneficial effects are that:
the utility model provides an unorganized emission sampling device for waste gas VOCs of enterprises, which is provided with universal wheels and pushing hands, is convenient to move, and is suitable for VOCs sampling in various occasions. After the second stop valve is closed, residual gas in the gas sampling tank can be pumped out through the air pump to form vacuum, and then the air pump and the first stop valve are closed, and the second stop valve is opened, so that the gas sampling tank automatically sucks air for sampling. In addition, VOCs gas can be pumped into the gas sampling bag by adopting a sucking pump after the valve of the gas sampling tank is closed. Two pumping modes of instantaneous sampling and constant flow sampling can be switched through the three-way valve, so that the requirement of actual sampling is met. The strength requirement on the gas sampling tank is lower, the gas sampling tank can be used without vacuumizing treatment, the pressure is close to the atmospheric pressure before and after the sampling is finished, and the transportation risk is low.
Drawings
FIG. 1 is a schematic diagram of the structure of the VOCs unorganized emission sampling device of the present utility model.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
As shown in figure 1 of the drawings,
specific examples: the utility model provides an unorganized emission sampling device of enterprise waste gas VOCs, including bottom plate 1 and frame 2, frame 2 is fixed on bottom plate 1, is equipped with a plurality of thing grooves 3 on the bottom plate 1, puts the thing inslot and places gas sampling jar 4, is equipped with valve 5 on the interface of gas sampling jar 4, and the interface of gas sampling jar 4 communicates house steward 7 through first branch pipe 6, and house steward 7 passes through the extraction opening of second branch pipe 8 connection aspiration pump 9, installs first stop valve 10 on the second branch pipe 8, and outlet duct 11 is connected to the gas outlet of aspiration pump 9; the main pipe 7 is connected with the outlet of the flow controller 13 through the third branch pipe 12, the main pipe 7 is connected with the first outlet of the three-way valve 14, the second outlet of the three-way valve 14 is connected with the inlet of the flow controller 13, the inlet of the three-way valve 14 is connected with the dust filter 15, the dust filter 15 is connected with the air inlet pipe 16, and the second stop valve 17 is arranged on the air inlet pipe 16. The pore diameter of the dust filter is less than or equal to 10 mu m.
The frame 2 is divided into an upper layer and a lower layer by a transverse plate 18, the main pipe 7 is arranged above the transverse plate 18, the first branch pipe 6 penetrates through the transverse plate 18 and then is connected with the main pipe 7, and the air extracting pump 9, the flow controller 13, the three-way valve 14 and the dust filter 15 are all arranged above the transverse plate 18. The accumulator 19 is also arranged above the transverse plate 18, the accumulator 19 supplies power to the air pump 9 and the flow controller 13, the autonomous power supply under the state of no external power supply is maintained, the three-way valve 14, the first stop valve 10 and the second stop valve 17 can adopt manual valves or electromagnetic valves, and the accumulator 19 can supply power to the electromagnetic valves when the electromagnetic valves are adopted. In addition, the controller can be set to perform autonomous control to operate the whole device.
The interface of the gas sampling tank 4 is detachably connected with the first branch pipe 6, in particular by a quick connector. The gas sampling tank 4 is conveniently taken down to perform gas detection. The gas sampling tank 4 generally has two specifications of 3.2L and 6L.
The gas sampling tank 4 is provided with a vacuum meter 4-1 and a handle frame 4-2. The vacuum degree is read through the vacuum gauge 4-1, whether the vacuum condition meets the requirement or not is observed, the accuracy requirement of the vacuum gauge 4-1 is less than or equal to 7kPa (1 psi), and the pressure range is as follows: the handle holder 4-2 can be held by hand to lift the gas sampling tank 4, 101kPa-202 kPa.
The damping rubber pad 20 is arranged in the storage tank 3, so that vibration of the gas sampling tank 4 in the moving process is reduced, and damage to the quick joint and abrasion of the gas sampling tank 4 are prevented.
The top of the frame 2 is provided with a top plate 21, the air outlet pipe 11 penetrates through the top plate 21, an air outlet connector is arranged on the outlet of the air outlet pipe 11, the air outlet connector can be connected with a gas sampling bag, and the gas sampling bag can be placed on the top plate 21 during operation. The frame 2 is provided with a cabinet 22, and a cabinet door is hinged on the cabinet 22. The gas sampling bag may be collected within the locker 22.
The bottom surface of the base plate 1 is provided with a plurality of universal wheels 23, and one side of the frame 2 is provided with a pushing handle 24.
The working principle of the utility model is that the sampling device is discharged in an unorganized way:
the VOCs gas is collected by adopting the gas sampling tank 4, and the operation is as follows: the second stop valve 17 is closed firstly, the valve 5 and the first stop valve 10 of the gas sampling tank 4 are opened, the air pump 9 is opened, residual gas in the gas sampling tank 4 is pumped by the air pump 9, the vacuum meter 4-1 on the gas sampling tank 4 is observed, when the reading of the vacuum meter 4-1 is smaller than 10Pa, the valve 5 is closed, the air pump 9 is stopped, the first stop valve 10 is closed, the instantaneous sampling mode or the constant flow sampling mode is selected by switching the three-way valve 14, the second stop valve 17 is opened, the valve 5 is opened again, and due to the fact that vacuum is arranged in the gas sampling tank 4, VOCs gas in the external environment enters the gas sampling tank 4 through the air inlet pipe 16, the reading of the vacuum meter 4-1 is observed, and when the reading is not changed, the valve 5 is closed, and VOCs gas collection is completed.
The VOCs gas is collected by adopting a gas sampling bag, and the operation is as follows: the valve 5 is closed, the second stop valve 17 and the first stop valve 10 are opened, an instantaneous sampling mode or a constant flow sampling mode is selected by switching the three-way valve 14, the air pump 9 is opened to replace the air in the whole pipeline, the air outlet pipe 11 is provided with the air sampling bag after the replacement is completed, and the air pump 9 is opened to fill VOCs air into the air sampling bag.
The instantaneous sampling mode or the constant flow sampling mode is selected by switching the three-way valve 14, and the gas flow direction is switched to the constant flow sampling mode when the flow controller 13 is switched, for example, 48ml/min is set, and the sampling is continuously carried out for 1h; the gas flow is switched to the manifold 7 in a transient sampling mode.
While the utility model has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model, and it is intended that the scope of the utility model shall be limited only by the claims appended hereto.
Claims (9)
1. The utility model provides an unorganized emission sampling device of enterprise waste gas VOCs, its characterized in that includes bottom plate and frame, and the frame is fixed on the bottom plate, is equipped with a plurality of thing grooves on the bottom plate, puts the thing inslot and places the gas sampling jar, is equipped with the valve on the interface of gas sampling jar, and the interface of gas sampling jar passes through first branch pipe intercommunication house steward, and the house steward passes through the extraction opening of second branch pipe connection aspiration pump, installs first stop valve on the second branch pipe, and the outlet duct is connected to the gas outlet of aspiration pump; the main pipe is connected with an outlet of the flow controller through a third branch pipe, the main pipe is connected with a first outlet of the three-way valve, a second outlet of the three-way valve is connected with an inlet of the flow controller, an inlet of the three-way valve is connected with a dust filter, the dust filter is connected with an air inlet pipe, and a second stop valve is arranged on the air inlet pipe.
2. The device of claim 1, wherein the frame is divided into an upper layer and a lower layer by the cross plate, the main pipe is arranged above the cross plate, the first branch pipe passes through the cross plate and then is connected with the main pipe, and the air pump, the flow controller, the three-way valve and the dust filter are all arranged above the cross plate.
3. The device for unorganized emission sampling of waste gas VOCs in enterprises of claim 2, wherein a battery is further arranged above the transverse plate.
4. An enterprise waste gas VOCs unorganized emission sampling apparatus according to claim 2 or 3, wherein the interface of the gas sampling tank is detachably connected to the first branch pipe.
5. The device of claim 4, wherein the gas sampling tank is provided with a vacuum gauge and a handle frame.
6. The device for unorganized emission sampling of waste gas VOCs in an enterprise of claim 5, wherein a shock absorbing rubber pad is disposed in the storage tank.
7. The device of claim 6, wherein the top of the frame is provided with a top plate, the air outlet pipe passes through the top plate, and the outlet of the air outlet pipe is provided with an air outlet connector, and the air outlet connector can be connected with the air sampling bag.
8. The device for the unorganized emission sampling of waste gas VOCs in an enterprise of claim 7, wherein the frame is provided with a storage cabinet, and the storage cabinet is hinged with a cabinet door.
9. The device for unorganized emission sampling of waste gas VOCs in an enterprise of claim 8, wherein a plurality of universal wheels are mounted on the bottom surface of the base plate, and a pushing hand is mounted on one side of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321951068.9U CN220289141U (en) | 2023-07-24 | 2023-07-24 | Sampling device is discharged to unorganization of enterprise's waste gas VOCs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321951068.9U CN220289141U (en) | 2023-07-24 | 2023-07-24 | Sampling device is discharged to unorganization of enterprise's waste gas VOCs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220289141U true CN220289141U (en) | 2024-01-02 |
Family
ID=89329907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321951068.9U Active CN220289141U (en) | 2023-07-24 | 2023-07-24 | Sampling device is discharged to unorganization of enterprise's waste gas VOCs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220289141U (en) |
-
2023
- 2023-07-24 CN CN202321951068.9U patent/CN220289141U/en active Active
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