CN110779775A - High negative pressure gas collector for coal mine - Google Patents
High negative pressure gas collector for coal mine Download PDFInfo
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- CN110779775A CN110779775A CN201910802364.4A CN201910802364A CN110779775A CN 110779775 A CN110779775 A CN 110779775A CN 201910802364 A CN201910802364 A CN 201910802364A CN 110779775 A CN110779775 A CN 110779775A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2294—Sampling soil gases or the like
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of coal mine gas sampling equipment, and discloses a high negative pressure gas collector for a coal mine, which comprises two bases, wherein two second screw holes are formed in the sides, far away from each other, of the two bases, a support frame is connected to the positions, close to the second screw holes, of the sides, far away from each other, of the two bases, a support plate is connected to the middle position of the top ends of the two bases, a third screw hole is formed in one side of the support plate, a fixed rod is connected to the top of one side of the support plate, a nut is sleeved on the outer side of the fixed rod, a fixed thread is formed in the outer side of the fixed rod, and a clamping block is mounted. According to the invention, the filter screen is arranged in the gas collection block, so that the gas collection device can be prevented from being influenced in normal use by sucking fine dust into the gas collection device when the gas collection device is used for collecting gas, and the practicability of the gas collection device is improved.
Description
Technical Field
The invention relates to the technical field of coal mine gas sampling equipment, in particular to a high negative pressure gas collector for a coal mine.
Background
The gas is formed by decomposing cellulose and organic matters under the action of anaerobic bacteria in the early stage of accumulating ancient plants into coal, and is not only a harmful gas, but also an important energy source. In coal mines, when the gas concentration of air is high, workers are suffocated, the gas content in the air is high, the workers can be burnt and exploded when encountering fire, and the gas is toxic gas, so that the workers can be poisoned and killed. In order to prevent the above situation, before the worker enters the coal mine for construction, the gas content in the coal mine needs to be evaluated, and the coal seam in the coal mine needs to be analyzed and detected so as to ensure that the gas content in the coal mine can enable the worker to work normally. The current gas detection schemes are generally divided into field detection and sampling detection, and sampling collection generally refers to that a gas collection hole is drilled in a coal seam, and then a gas sampler is used for collecting partial gas from the gas collection hole and detecting the concentration of the gas.
There are multiple high negative pressure gas collector who is used for the colliery in the existing market, but these gas collector ubiquitous need hold the gas collector when using gas collector to gather the gas, have increased staff's intensity of labour on the one hand, and on the other hand, the people is not motionless, and hand can lead to the gas sampler shake, and then makes the gas in the coal seam flow out from the gap between sampler, the coal seam, influences the effect of sample. Therefore, the person skilled in the art provides a high negative pressure gas collector for coal mines to solve the problems mentioned in the background art.
Disclosure of Invention
The invention aims to provide a high-negative-pressure gas collector for a coal mine, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a high negative pressure gas collector for coal mines comprises two bases, wherein two second screw holes are respectively formed in the sides of the two bases far away from each other, and the positions of the sides of the two bases far away from each other, which are close to the second screw hole, are both connected with supporting frames, the middle positions of the top ends of the two bases are both connected with supporting plates, a third screw hole is arranged on one side of the supporting plate, a fixed rod is connected with the top of one side of the supporting plate, the outer side of the fixed rod is sleeved with a nut, the outer side of the fixed rod is provided with a fixed thread, one side of the two fixed rods which are close to each other is provided with a fixture block, one side that two fixture blocks are close to each other is connected with gas collection system jointly, the first screw of a plurality of has been seted up to one side equidistance of support frame, the bottom of support frame is provided with the inserted block, the inboard of first screw is connected with the screw rod.
As a still further scheme of the invention: the gas collection device comprises a gas collector main body, wherein a handle is connected to the top end of the gas collector main body, an air outlet connector is arranged on one side of the gas collector main body, an air inlet connector is arranged at the bottom end of the gas collector main body, a hose is connected to the bottom end of the air inlet connector, an air collecting block is connected to one end, away from the air inlet connector, of the hose, a hose mounting hole is formed in the top end of the air collecting block, and a filter screen is connected to the inner side of the air collecting block.
As a still further scheme of the invention: the screw rod runs through the inboard at first screw and second screw in proper order, base and support frame pass through screw rod, first screw and second screw fastening connection.
As a still further scheme of the invention: the fixing rod penetrates through the inner sides of the nut and the third screw hole in sequence, and the supporting plate and the fixing rod are connected in a fastening mode through the nut, the third screw hole and the fixing thread.
As a still further scheme of the invention: and an arc-shaped groove is formed in one side, close to each other, of the two clamping blocks, and the radian of the arc-shaped groove is matched with the outer diameter of the gas collector main body.
As a still further scheme of the invention: one end of the hose is connected with the inside of the air inlet joint, and the other end of the hose is connected with the inner side of the hose mounting hole.
As a still further scheme of the invention: the air collecting block is a component with a conical structure.
Compared with the prior art, the invention has the beneficial effects that:
1. the support frame and the insert block can be inserted into the vicinity of a gas collecting hole formed on the ground through the first screw hole, the second screw hole, the screw rod, the support frame and the insert block, so that the base is fixed on the ground, the depth of the support frame inserted into the ground can be adjusted according to the ground and the thickness from the coal bed through the screw rod and the first screw holes at different positions, the gas leakage caused by the contact between the support frame and the coal bed is avoided, the fixed rod can be turned into the third screw hole through the support plate, the fixed rod, the third screw hole, the nut and the fixture blocks, the fixed thread is connected with the third screw hole, the nut is turned on the fixed thread and is tightly attached with the support plate, then the arc grooves on the two fixture blocks are attached with the gas collector main body, the fixture blocks stably clamp the gas collector main body, so that the gas collecting device can be stably fixed on the, therefore, the staff does not need to hold the gas collecting device for a long time, the staff is convenient to use, the gas sampler can be prevented from shaking, gas in the coal bed flows out from gaps between the gas sampler and the coal bed, the sampling effect is influenced, and the working efficiency of the gas collector is improved.
2. Through the gas collection piece, hose and filter screen, when carrying out the gas sample, can put into the gas collection piece gas collection downtheholely, because the gas collection piece is the toper structure, consequently the gas collection piece can be laminated with not equidimension and gas collection hole mutually, avoid gathering the hole and be greater than the gas collection piece and make gas spill from the gap of gas collection piece and gathering the hole, or gather the hole and be less than the gas collection piece and make the gas collection piece can't get into and gather downthehole, thereby made things convenient for the staff to take a sample, through set up the filter screen in the gas collection piece, can avoid gas collection system when getting gas, inhale the gas collection system in the gas collection system and influence gas collection system normal use with tiny dust, thereby this gas collection system's practicality has been improved.
Drawings
FIG. 1 is a schematic structural diagram of a high negative pressure gas collector for a coal mine;
FIG. 2 is a partial exploded view of a base and support frame for a high negative pressure gas collector for a coal mine;
FIG. 3 is a partial exploded view of a fixing rod, a support plate and a clamping block in a high negative pressure gas collector for a coal mine;
FIG. 4 is a schematic view of a gas collecting device in a high negative pressure gas collector for a coal mine;
fig. 5 is a partial cross-sectional view of a gas collection block in a high negative pressure gas collector for a coal mine.
In the figure: 1. a support frame; 2. a screw; 3. a first screw hole; 4. inserting a block; 5. a second screw hole; 6. a gas collecting device; 7. fixing the rod; 8. a nut; 9. a support plate; 10. a clamping block; 11. a third screw hole; 12. a base; 13. fixing threads; 61. a handle; 62. a gas collector body; 63. an air outlet joint; 64. an air inlet joint; 65. a hose; 66. a gas collecting block; 67. a hose mounting hole; 68. and (5) filtering by using a filter screen.
Detailed Description
Referring to fig. 1 to 5, in the embodiment of the invention, a high negative pressure gas collector for a coal mine comprises two bases 12, two second screw holes 5 are respectively formed on the sides of the two bases 12 far away from each other, a support frame 1 is respectively connected to the positions of the sides of the two bases 12 far away from each other, which are close to the second screw holes 5, a support plate 9 is respectively connected to the middle position of the top ends of the two bases 12, a third screw hole 11 is formed on one side of the support plate 9, a fixing rod 7 is connected to the top of one side of the support plate 9, a nut 8 is sleeved on the outer side of the fixing rod 7, a fixing thread 13 is formed on the outer side of the fixing rod 7, clamping blocks 10 are respectively installed on the sides of the two fixing rods 7 close to each other, a gas collecting device 6 is commonly connected to the sides of the two clamping blocks 10 close to each other, the inner side of the first screw hole 3 is connected with a screw rod 2.
In fig. 4 and 5: the gas collecting device 6 comprises a gas collector body 62, the top end of the gas collector body 62 is connected with a handle 61, one side of the gas collector body 62 is provided with a gas outlet joint 63, the bottom end of the gas collector body 62 is provided with a gas inlet joint 64, the bottom end of the gas inlet joint 64 is connected with a hose 65, one end of the hose 65, which is far away from the gas inlet joint 64, is connected with a gas collecting block 66, the top end of the gas collecting block 66 is provided with a hose mounting hole 67, and the inner side of the gas collecting block 66 is connected with a filter screen 68, so that the gas collecting block 66 can be placed into a gas collecting hole when gas sampling is carried out, because the gas collecting block 66 is in a conical structure, the gas collecting block 66 can be attached to gas collecting holes with different sizes, gas is prevented from leaking from gaps between the gas collecting block 66 and the collecting hole due to the fact that the collecting hole is larger than the gas, the hand 61 is then pulled to draw gas through the collection block and hose into the gas collector body 62 and out the outlet fitting 63 into the external gas storage device.
In fig. 2: screw rod 2 runs through in proper order in the inboard of first screw 3 and second screw 5, and base 12 and support frame 1 pass through screw rod 2, first screw 3 and the fastening connection of second screw 5 to can be convenient fix base 12 and support frame 1.
In fig. 3: the fixing rod 7 sequentially penetrates through the inner sides of the nut 8 and the third screw hole 11, and the supporting plate 9 and the fixing rod 7 are fixedly connected through the nut 8, the third screw hole 11 and the fixing thread 13, so that the supporting plate 9 and the fixing rod 7 can be conveniently and stably connected together.
In fig. 1: the arc-shaped grooves are formed in the side, close to each other, of the two clamping blocks 10, and the radian of each arc-shaped groove is matched with the outer diameter of the gas collector main body 62, so that the clamping blocks 10 can fix the gas collector 6 more stably.
In fig. 5: one end of the hose 65 is connected to the inside of the intake nipple 64, and the other end of the hose 65 is connected to the inside of the hose mounting hole 67, so that gas can be introduced into the gas collector body 62 from the hose 65.
In fig. 4: the air collecting block 66 is a member having a tapered structure, so that the air collecting block 66 can be attached to gas collecting holes of different sizes.
The working principle of the invention is as follows: when a gas collecting device 6 needs to be fixed near a gas collecting hole for gas sampling, firstly, a support frame 1 and an insert block 4 are inserted into the vicinity of the gas collecting hole formed on the ground, so that a base 12 is fixed on the ground, the depth of the support frame 1 inserted into the ground can be adjusted according to the ground and the thickness from a coal seam through a screw rod 2 and a first screw hole 3 at different positions, the gas leakage caused by the contact between the support frame 1 and the coal seam is avoided, then a fixing rod 7 is turned into a third screw hole 11, a fixing thread 13 is connected with the third screw hole 11, then a nut 8 is turned on the fixing thread 13 and is tightly attached with a support plate 9, then arc-shaped grooves on two clamping blocks 10 are attached with a gas collector main body 62, so that the clamping blocks stably clamp the gas collector main body 62, and the gas collecting device 6 can be stably fixed on the fixing rod 7, then put into gas collection downthehole with gas collection piece 66, because gas collection piece 66 is the toper structure, consequently gas collection piece 66 can with not equidimension with the gas collection hole laminating, avoid the collection hole to be greater than gas collection piece 66 and make gas leak from the gap of gas collection piece 66 and collection hole, or the collection hole is less than gas collection piece 66 and makes the gas collection piece can't get into in the collection hole, then at suction push-pull handle 61 to in with gas through gas collection piece and hose suction gas collector main part 62, and send into outside gas detection device from gas outlet joint 63.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (7)
1. The high negative pressure gas collector for the coal mine comprises two bases (12), and is characterized in that two second screw holes (5) are formed in one side, away from each other, of each base (12), a support frame (1) is connected to the position, close to the second screw holes (5), of one side, away from each other, of each base (12), a support plate (9) is connected to the middle position of the top end of each base (12), a third screw hole (11) is formed in one side of the support plate (9), a fixing rod (7) is connected to the top of one side of the support plate (9), a nut (8) is sleeved on the outer side of the fixing rod (7), a fixing thread (13) is formed in the outer side of the fixing rod (7), clamping blocks (10) are mounted on the side, close to each other, and a gas collecting device (6) is connected to the side, close to each clamping block (10), a plurality of first screw holes (3) are formed in one side of the support frame (1) at equal intervals, an inserting block (4) is arranged at the bottom end of the support frame (1), and a screw rod (2) is connected to the inner side of each first screw hole (3).
2. The high negative pressure gas collector for the coal mine according to claim 1, wherein the gas collecting device (6) comprises a gas collector main body (62), the top end of the gas collector main body (62) is connected with a handle (61), one side of the gas collector main body (62) is provided with an air outlet joint (63), the bottom end of the gas collector main body (62) is provided with an air inlet joint (64), the bottom end of the air inlet joint (64) is connected with a hose (65), one end, far away from the air inlet joint (64), of the hose (65) is connected with an air collecting block (66), the top end of the air collecting block (66) is provided with a hose mounting hole (67), and the inner side of the air collecting block (66) is connected with a filter screen (68).
3. The high negative pressure gas collector for the coal mine according to claim 1, wherein the screw rod (2) sequentially penetrates through the inner sides of the first screw hole (3) and the second screw hole (5), and the base (12) and the support frame (1) are fixedly connected through the screw rod (2), the first screw hole (3) and the second screw hole (5).
4. The high negative pressure gas collector for the coal mine as claimed in claim 1, wherein the fixing rod (7) penetrates through the inner sides of the nut (8) and the third screw hole (11) in sequence, and the support plate (9) and the fixing rod (7) are fixedly connected through the nut (8), the third screw hole (11) and the fixing thread (13).
5. The high negative pressure gas collector for the coal mine according to claim 2, wherein an arc groove is arranged at one side of the two clamping blocks (10) close to each other, and the radian of the arc groove is matched with the outer diameter of the gas collector body (62).
6. A high negative pressure gas collector for coal mines according to claim 2, wherein one end of the hose (65) is connected to the inside of the air inlet joint (64), and the other end of the hose (65) is connected to the inside of the hose mounting hole (67).
7. A high negative pressure gas collector for coal mines according to claim 2, wherein the gas collection block (66) is a member of a conical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802364.4A CN110779775A (en) | 2019-12-26 | 2019-12-26 | High negative pressure gas collector for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802364.4A CN110779775A (en) | 2019-12-26 | 2019-12-26 | High negative pressure gas collector for coal mine |
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| Publication Number | Publication Date |
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| CN110779775A true CN110779775A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910802364.4A Pending CN110779775A (en) | 2019-12-26 | 2019-12-26 | High negative pressure gas collector for coal mine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379586A (en) * | 2020-03-31 | 2020-07-07 | 重庆工程职业技术学院 | High negative pressure gas collecting device for coal mine |
| CN114924036A (en) * | 2022-05-13 | 2022-08-19 | 华北科技学院 | Gas concentration monitoring and early warning device for coal mine gas extraction |
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Application publication date: 20200211 |