CN220399051U - Portable gas sampling device - Google Patents
Portable gas sampling device Download PDFInfo
- Publication number
- CN220399051U CN220399051U CN202321835556.3U CN202321835556U CN220399051U CN 220399051 U CN220399051 U CN 220399051U CN 202321835556 U CN202321835556 U CN 202321835556U CN 220399051 U CN220399051 U CN 220399051U
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- Prior art keywords
- cylinder
- rotating shaft
- gas
- fan blade
- gas sampling
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- 238000005070 sampling Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 abstract description 6
- 239000003245 coal Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000002269 spontaneous effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a portable gas sampling device, which comprises a cylinder, wherein one side of the cylinder is sleeved with a rotating shaft, the other side of the cylinder is fixedly connected with a fixed handle, a fan blade is arranged in the cylinder, one end of the rotating shaft is fixedly connected with the fan blade, the other end of the rotating shaft is connected with a rotating handle, the side wall of the gas cylinder is provided with a gas inlet nozzle, the side wall of the cylinder is also provided with a gas outlet nozzle, the gas inlet nozzle and the gas outlet nozzle are axially symmetrical along the cylinder, the right hand of an operator grips the fixed handle on the side surface of the cylinder, the left hand grips the rotating handle and starts to rotate, the fan blade is directly driven by the rotation of the rotating shaft to generate wind power and adjust the air pressure in the cylinder, the rotating shaft rotates clockwise, the gas in a beam tube connected with an air inlet pipe is sucked out by the fan blade through negative pressure, and then the sucked out gas is discharged through the gas outlet nozzle. The rotating shaft rotates to drive the fan blade to generate negative pressure to suck out the beam tube gas, and the process is repeated continuously, so that the purpose of continuous air suction is achieved.
Description
Technical Field
The utility model belongs to the technical field of underground coal mine gas collection devices, and relates to a portable gas sampling device.
Background
The underground goaf of the coal mine is one of dangerous areas where spontaneous combustion fire of the coal is most likely to occur, the area where spontaneous combustion of the coal is likely to occur in the goaf is accurately predicted, effective prevention measures are timely taken, occurrence of spontaneous combustion of the coal is prevented, and the method has important significance for guaranteeing safe production of the coal mine. The goaf gas analysis technology is one of main technologies for predicting spontaneous combustion of coal in a coal mine goaf at home and abroad, and a current commonly used goaf gas acquisition device is an automatic negative pressure sampler or a handheld negative pressure gas acquisition device, and the automatic negative pressure sampler is limited in endurance time due to motor driving, so that risks of insufficient electric quantity and incapability of taking gas occur easily when an operator performs gas taking operation for many times for a long time. In addition, the hand-held negative pressure gas sampling device needs to sample the gas cylinders tightly held by both hands of a person, and continuously performs high-strength pumping and pulling gas sampling for a long time. The defects of the device cause the gas collection efficiency to be low, the working efficiency to be reduced, and the rapid collection and analysis of the gas in the mine goaf are not facilitated.
Disclosure of Invention
The utility model aims to provide a portable gas sampling device which has the characteristics of portability, simplicity in operation and easiness in carrying.
The portable gas sampling device comprises a cylinder, wherein one side of the cylinder is sleeved with a rotating shaft, the other side of the cylinder is fixedly connected with a fixed handle, fan blades are arranged in the cylinder, one end of the rotating shaft is fixedly connected with the fan blades, the other end of the rotating shaft is connected with the rotating handle, the side wall of the cylinder is provided with a gas inlet nozzle, the side wall of the cylinder is also provided with a gas outlet nozzle, and the gas inlet nozzle and the gas outlet nozzle are axially symmetrical along the cylinder.
The utility model is also characterized in that:
the rotating shaft is hinged with the rotating handle;
the top of the air cylinder is provided with a hand-held handle;
the angle between the axes of each blade of the fan blade is 36 degrees, and the distance between each blade of the fan blade and the inner wall of the cylinder is 2mm;
the tail end of each blade of the fan blade is provided with a buffer rubber cushion;
an air inlet valve is arranged on the air inlet nozzle and is connected with an air inlet pipe;
an exhaust valve is arranged on the air outlet nozzle and is connected with a bladder.
The beneficial effects of the utility model are as follows: according to the portable gas sampling device, an operator grips a fixed handle on the side face of a cylinder by the right hand, holds a rotating handle by the left hand and starts to rotate, directly rotates by a rotating shaft to drive a fan blade to generate wind power and adjust the air pressure in the cylinder, the rotating shaft rotates clockwise, gas in a beam tube connected with an air inlet pipe is sucked out by the fan blade by utilizing negative pressure, and then sucked out gas is discharged through an air outlet nozzle. The rotating shaft rotates to drive the fan blade to generate negative pressure to suck out the beam tube gas, and the process is repeated continuously, so that the purpose of continuous air suction is achieved. And the buffer rubber arranged at the tail end of the fan blade has better friction force, so that noise generated by friction between the fan blade and air in the rotation process of the fan blade can be effectively reduced, and meanwhile, the fan blade has better air exhausting capability.
Drawings
FIG. 1 is a schematic diagram of a portable gas sampling apparatus of the present utility model;
FIG. 2 is a front view of the portable gas sampling apparatus of the present utility model;
fig. 3 is a side view of a portable gas sampling apparatus of the present utility model.
In the figure, the cylinder 1, the fan blade 2, the rotary handle 3, the rotary shaft 4, the fixed handle 5, the portable handle 6, the air inlet nozzle 7, the air inlet valve 8, the air inlet valve 9, the air inlet pipe 10, the air outlet nozzle 11, the air outlet valve 12, the bladder 13 and the buffer rubber cushion.
Detailed Description
The utility model will be described in detail below with reference to the drawings and the detailed description.
The utility model discloses a portable gas sampling device, which is shown in figures 1, 2 and 3, and comprises a cylinder 1, wherein the cylinder 1 is connected with a rotating shaft 4, one end of the rotating shaft 4 is provided with a fan blade 2, the other end of the rotating shaft 4 is provided with a rotating handle 3, the fan blade 2 is positioned in the cylinder 1, the side surface of the cylinder 1 is provided with a fixed handle 5, the inner side of the fixed handle 5 adopts a wavy artificial physical design, the handle is convenient to grasp by hands of a user, fatigue of a palm is relieved, the handle is made of hard rubber, the side wall of the cylinder 1 is provided with an air inlet nozzle 9, the side wall of the cylinder 1 is also provided with an air outlet nozzle 10, the air inlet nozzle 9 and the air outlet nozzle 10 are axially symmetrical along the cylinder 1, the cylinder 1 is made of a hard metal material, the top of the cylinder 1 is provided with a portable handle 6, the rotating handle 3 is arranged on the rotating shaft 4, the rotating handle 3 is hinged with the rotating shaft 4, the rotating handle 3 can be folded when not used, the end of the rotating handle 2 is provided with a buffer rubber pad 13, the buffer rubber pad 13 is made of rubber with good adhesion, the fan blade 2 shares 10 blades, the axis included angles among the blades of the fan blades 2 are 36 DEG, the end of the fan blades 2 are respectively, the end 2 is provided with the air inlet nozzle 9 mm and the air inlet valve 11 is connected with the air inlet valve 11, the air inlet valve 11 is connected with the air inlet valve 11, the air inlet valve 11 and the air inlet valve 11 is reserved, the air inlet valve 11 is connected with the air inlet valve 11, and the air collecting valve is used for the air collecting bag.
The utility model relates to a portable gas sampling device, which comprises the following working processes:
1) When collecting goaf gas, the air inlet nozzle 7 is connected with the air inlet pipe 9, meanwhile, the tail end of the air inlet pipe 9 is connected with a reserved binding pipe of the goaf or a sealing wall, and then the air inlet valve 8 and the air outlet valve 11 are opened, and the folding rotary handle 3 is opened.
2) The right hand grips the fixed handle 5 on the side of the air cylinder, the left hand grips the rotating handle 3 and starts to rotate, the rotating shaft 4 is directly utilized to rotate to drive the fan blades 2 to generate wind power and adjust the air pressure in the air cylinder 1, the rotating shaft 4 rotates clockwise, the air in the beam tube connected with the air inlet pipe 9 is sucked out by utilizing the fan blades 2 through negative pressure, and then the sucked air is discharged through the air outlet nozzle 10.
3) The fan blade 2 is driven to generate negative pressure to suck out the beam tube gas by utilizing the rotation of the rotating shaft 4, and the process is repeated continuously, so that the purpose of continuously exhausting air is achieved. When the pumped gas needs to be collected, the bladder 12 is connected with the air outlet nozzle 10 for pumping.
Example 1
As shown in fig. 1, the portable gas sampling device provided in this embodiment includes a cylinder 1, one side of the cylinder 1 is sleeved with a rotating shaft 4, the other side of the cylinder 1 is fixedly connected with a fixed handle 5, a fan blade 2 is arranged in the cylinder 1, one end of the rotating shaft 4 is fixedly connected with the fan blade 2, the other end of the rotating shaft 4 is connected with a rotating handle 3, the side wall of the cylinder 1 is provided with an air inlet nozzle 9, the side wall of the cylinder 1 is also provided with an air outlet nozzle 10, and the air inlet nozzle 9 and the air outlet nozzle 10 are axially symmetrical along the cylinder 1.
Example 2
As shown in fig. 1 and 2, the portable gas sampling device provided in this embodiment includes a cylinder 1, one side of the cylinder 1 is sleeved with a rotating shaft 4, the other side of the cylinder 1 is fixedly connected with a fixed handle 5, a fan blade 2 is arranged in the cylinder 1, one end of the rotating shaft 4 is fixedly connected with the fan blade 2, the other end of the rotating shaft 4 is connected with a rotating handle 3, the side wall of the cylinder 1 is provided with an air inlet nozzle 9, the side wall of the cylinder 1 is also provided with an air outlet nozzle 10, and the air inlet nozzle 9 and the air outlet nozzle 10 are axially symmetrical along the cylinder 1;
an air inlet valve 8 is arranged on the air inlet nozzle 7, and the air inlet valve 8 is connected with an air inlet pipe 9;
the air outlet nozzle 10 is provided with an air outlet valve 11, and the air outlet valve 11 is connected with a bladder 12.
Example 3
As shown in fig. 1, 2 and 3, the portable gas sampling device provided in this embodiment includes a cylinder 1, one side of the cylinder 1 is sleeved with a rotating shaft 4, the other side of the cylinder 1 is fixedly connected with a fixed handle 5, a fan blade 2 is arranged in the cylinder 1, one end of the rotating shaft 4 is fixedly connected with the fan blade 2, the other end of the rotating shaft 4 is connected with a rotating handle 3, the side wall of the cylinder 1 is provided with an air inlet nozzle 9, the side wall of the cylinder 1 is also provided with an air outlet nozzle 10, and the air inlet nozzle 9 and the air outlet nozzle 10 are axially symmetrical along the cylinder 1;
the rotating shaft 4 is hinged with the rotating handle 3;
the top of the air cylinder 1 is provided with a carrying handle 6;
the angle between the axes of each blade of the fan blade 2 is 36 degrees, and the distance between each blade of the fan blade 2 and the inner wall of the air cylinder 1 is 2mm;
the tail end of each blade of the fan blade 2 is provided with a buffer rubber pad 13;
an air inlet valve 8 is arranged on the air inlet nozzle 7, and the air inlet valve 8 is connected with an air inlet pipe 9;
the air outlet nozzle 10 is provided with an air outlet valve 11, and the air outlet valve 11 is connected with a bladder 12.
Claims (7)
1. The portable gas sampling device is characterized by comprising a cylinder (1), a rotating shaft (4) is sleeved on one side of the cylinder (1), a fixed handle (5) is fixedly connected on the other side of the cylinder (1), a fan blade (2) is arranged in the cylinder (1), one end of the rotating shaft (4) is fixedly connected with the fan blade (2), the other end of the rotating shaft (4) is connected with a rotating handle (3), an air inlet nozzle (7) is arranged on the side wall of the cylinder (1), an air outlet nozzle (10) is further arranged on the side wall of the cylinder (1), and the air inlet nozzle (7) and the air outlet nozzle (10) are axially symmetrical along the cylinder (1).
2. Portable gas sampling device according to claim 1, characterized in that the rotation shaft (4) is hinged to the rotation handle (3).
3. Portable gas sampling device according to claim 1, characterized in that the top of the cylinder (1) is provided with a carrying handle (6).
4. The portable gas sampling apparatus according to claim 1, wherein the angle between the respective vane axes of the vanes (2) is 36 °, and the respective vanes of the vanes (2) are spaced from the inner wall of the cylinder (1) by a distance of 2mm.
5. The portable gas sampling apparatus according to claim 4, wherein each blade end of the fan blade (2) is provided with a buffer rubber pad (13).
6. Portable gas sampling device according to claim 1, characterized in that the inlet nozzle (7) is provided with an inlet valve (8), the inlet valve (8) being connected with an inlet pipe (9).
7. Portable gas sampling device according to claim 1, characterized in that the outlet nozzle (10) is provided with an exhaust valve (11), the exhaust valve (11) being connected with a bladder (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321835556.3U CN220399051U (en) | 2023-07-12 | 2023-07-12 | Portable gas sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321835556.3U CN220399051U (en) | 2023-07-12 | 2023-07-12 | Portable gas sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220399051U true CN220399051U (en) | 2024-01-26 |
Family
ID=89602907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321835556.3U Active CN220399051U (en) | 2023-07-12 | 2023-07-12 | Portable gas sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220399051U (en) |
-
2023
- 2023-07-12 CN CN202321835556.3U patent/CN220399051U/en active Active
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