CN214149752U - Mining air leakage detection SF6 tracer gas instantaneous release device - Google Patents
Mining air leakage detection SF6 tracer gas instantaneous release device Download PDFInfo
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- CN214149752U CN214149752U CN202120489597.6U CN202120489597U CN214149752U CN 214149752 U CN214149752 U CN 214149752U CN 202120489597 U CN202120489597 U CN 202120489597U CN 214149752 U CN214149752 U CN 214149752U
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Abstract
The utility model discloses a mine air leakage detection SF6 tracer gas instantaneous release device, which comprises a releaser and an air supply component connected with the releaser; the releaser comprises a one-way charging connector, a visible pressure gauge, a release wrench and an air storage cylinder; the air storage cylinder is provided with an air inlet and an air outlet, the air inlet is provided with a one-way inflating nozzle, and the one-way inflating nozzle is connected with the air supply assembly; the gas outlet is provided with a release wrench for controlling the gas outlet to be opened and closed, and the visual pressure gauge is arranged on the gas storage cylinder. The advantages are that: changes the traditional working mode of taking several hours from release to detection, and greatly saves the using amount of SF6 tracer gas. The releasing device is provided with a pressure display, the volume of the released SF6 tracer gas can be accurately calculated, and the using amount of the SF6 tracer gas in the detection process can be accurately grasped.
Description
Technical Field
The utility model relates to a diagnostic technical field that leaks for mine especially relates to a detection SF6 tracer gas instantaneous release device that leaks for mine.
Background
In coal mine ventilation, the air flow sent to the underground is directly permeated into an air return duct or the ground through gaps of ventilation structures, coal pillar cracks, goafs or surface subsidence areas and the like without passing through a working place and is called air leakage. The mine air leakage is divided into positive pressure air leakage, negative pressure air leakage, local air leakage and continuous air leakage. Coal mine air leakage is a ubiquitous phenomenon of underground ventilation. It can waste ventilation energy, reduce the effective air volume rate of mine, cause and use the wind ground to supply the wind not enough. Meanwhile, continuous air leakage and oxygen supply accelerate the oxidation of residual coal on a working face, a goaf and in a closed state, so that the phenomena of spontaneous combustion of the coal in the goaf, abnormal gas emission and the like are easily caused, and even accidents such as gas explosion and the like can be caused. Coal mine air leakage has become an important hidden trouble affecting mine safety production. The underground roadways are staggered, the air leakage forms are various, and the degrees are different, so that accurate, effective and quick methods are required to be adopted for air leakage detection, analysis and diagnosis, an air leakage channel is found out, the underground air leakage condition and rule are mastered, spontaneous combustion of coal in a coal seam goaf with spontaneous combustion ignition tendency is prevented, a basis is provided for preventing and controlling coal mine fires, and the method is an important means for guaranteeing coal mine safety production.
At present, the conventional air leakage measuring method mainly comprises an air meter measuring method and a tracing technology measuring method, when the air meter is used for measuring air leakage, the measuring result is inaccurate due to the influence of the shape of a cross section and the material of space equipment, and the measuring error is larger when the air leakage is smaller. In addition, it is inconvenient and infeasible to use traditional anemometer anemometry to survey the amount of wind leakage, study the air current flow law to the place such as collecting space area, coal pillar, airtight interior that the personnel passed in and out the inconvenience. The common method for measuring mine air leakage at home and abroad is a tracer technique, i.e. a special technique for applying tracer gas flow trace and its rule. Tracer gas technology originated in the nineteenth century, and early tracer gas technologies (SF6, H2, CO2, etc.) were mainly applied to ventilation measurement in the building field. In 1972, the international organization for standardization formally recognized the tracer method as a standard flow measurement method. In the field of coal mine safety, a widely accepted tracer gas is SF6, SF6 is non-toxic, non-combustible, not easy to decompose and stable in property, does not exist in the natural environment of a coal mine, can be detected at an extremely low concentration, is an ideal tracer in the field of coal mines, and has become a reliable means for detecting an air leakage channel, judging the air leakage direction and determining the air leakage quantity in the coal mine. In order to better apply the SF6 tracer gas air leakage detection technology, the national coal industry administration issued 'technical specification for detecting air leakage of SF6 tracer gas for coal mine roadways' (continuous stable release + chromatographic detection) in 1999, but due to the research and development delay of detection equipment, the quantitative detection of mine air leakage is not included in the daily air leakage measurement work of mines.
At present, a quantitative continuous release method is generally adopted when the mine air leakage is detected by using a tracer gas technology in China, but the method has long release time and usually needs hours; furthermore, the consumption of SF6 trace gas is large, and a bottle of 4L of gas cannot be released for several times.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a mining air leakage detects SF6 tracer gas instantaneous release device to solve the aforementioned problem that exists among the prior art.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
a mine air leakage detection SF6 tracer gas instantaneous release device comprises a releaser and an air supply assembly connected with the releaser; the releaser comprises a one-way charging connector, a visible pressure gauge, a release wrench and an air storage cylinder; the air storage cylinder is provided with an air inlet and an air outlet, the air inlet is provided with a one-way inflating nozzle, and the one-way inflating nozzle is connected with the air supply assembly; the gas outlet is provided with a release wrench for controlling the gas outlet to be opened and closed, and the visual pressure gauge is arranged on the gas storage cylinder.
Preferably, the air cylinder is of a cylindrical tubular structure, the air cylinder is hollow and has two closed ends, and the air inlet, the air outlet and the visual pressure gauge are all arranged at the same end of the air cylinder; the gas outlet is provided with a gas outlet head extending towards the direction far away from the gas storage cylinder, and the release wrench is arranged on the gas outlet head.
Preferably, the releaser further comprises a handle, and the handle is arranged close to the wrench at one end of the gas outlet head far away from the gas cylinder.
Preferably, the gas supply assembly comprises a gas cylinder, a first pressure gauge, a pressure reducing valve, a second pressure gauge and a ball valve, the gas cylinder is connected with the one-way inflating nozzle through a gas pipe, and the first pressure gauge, the pressure reducing valve, the second pressure gauge and the ball valve are sequentially arranged on the gas pipe along the direction from the gas cylinder to the one-way inflating nozzle.
The utility model has the advantages that: 1. the release device changes the traditional working mode of taking several hours from release to detection, and greatly saves the using amount of SF6 tracer gas. 2. The method has a series of advantages of simplicity, convenience, flexibility, easy operation, high intelligence and the like, and can be widely applied to detecting air leakage channels and air leakage quantity of mine goafs or fire zones and accurately measuring the air quantity of breeze tunnels to carry out instantaneous release of tracer gas. 3. The releasing device is provided with a pressure display, the volume of the released SF6 tracer gas can be accurately calculated, and the using amount of the SF6 tracer gas in the detection process can be accurately grasped.
Drawings
Fig. 1 is a schematic structural diagram of a releasing device in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a releaser in the embodiment of the present invention.
In the figure: 1. a releaser; 2. a gas cylinder; 3. a first pressure gauge; 4. a pressure reducing valve; 5. a second pressure gauge; 6. A ball valve; 7. a gas delivery pipe; 8. an air cylinder; 9. a visual pressure gauge; 10. a one-way charging connector; 11. an air outlet head; 12. releasing the wrench; 13. a handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
As shown in fig. 1 to fig. 2, in the present embodiment, a mine air leakage detection SF6 tracer gas instantaneous release device is provided, and the release device includes a releaser 1 and an air supply assembly connected to the releaser 1; the releaser 1 comprises a one-way charging connector 10, a visual pressure gauge 9, a release wrench 12 and an air storage cylinder 8; an air inlet and an air outlet are arranged on the air storage cylinder 8, a one-way charging connector 10 is arranged on the air inlet, and the one-way charging connector 10 is connected with the air supply assembly; the gas outlet is provided with a release wrench 12 for controlling the opening and closing of the gas outlet, and the visual pressure gauge 9 is arranged on the gas storage cylinder 8.
In this embodiment, the air cylinder 8 is a cylindrical tubular structure, the air cylinder 8 is hollow and has two closed ends, and the air inlet, the air outlet and the visual pressure gauge 9 are all arranged at the same end of the air cylinder 8; the gas outlet is provided with a gas outlet head 11 extending towards the direction far away from the gas storage cylinder 8, and the release wrench 12 is arranged at one end, far away from the gas storage cylinder 8, of the gas outlet head 11.
In this embodiment, the releaser 1 further comprises a handle 13, and the handle 13 is arranged at one end of the gas outlet head 11 far away from the air cylinder 8, and is close to the wrench. When using releaser 1, the user can hold releaser 1 through handheld handle 13, pulls the spanner to handle 13 direction, can open gas outlet 11, releases the spanner, and the spanner is automatic to the direction removal of keeping away from handle 13, can close gas outlet 11.
In this embodiment, the air feed subassembly includes gas cylinder 2, first manometer 3, relief pressure valve 4, second manometer 5 and ball valve 6, gas cylinder 2 through gas-supply pipe 7 with one-way charging connector 10 links to each other, first manometer 3, relief pressure valve 4, second manometer 5 and ball valve 6 are followed gas cylinder 2 sets gradually to one-way charging connector 10's direction on the gas-supply pipe 7.
In this embodiment, the inner diameter of the air cylinder 8 is 110mm, the volume is 3L, and the pressure range is 0.0-0.9 MPa. The gas cylinder 2 has a large volume, and can continuously provide SF6 gas to the releaser 1 to ensure a sufficient release amount.
The one-way charging connector 10 is connected with the gas cylinder 2 through the gas pipe 7 in a quick-insertion mode, convenience and rapidness are achieved, SF6 tracer gas in the gas cylinder 2 enters the gas cylinder 8 through the gas pipe 7 in a one-way mode and the one-way charging connector 10, one-way circulation of gas between the gas cylinder 2 and the gas cylinder 8 can be guaranteed through the arrangement of the one-way charging connector 10, and no reverse flow and no leakage are guaranteed. The visual pressure gauge 9 can display the internal pressure in the gas cylinder 8, determine the volume of the SF6 trace gas in the gas cylinder 8 through pressure, and determine whether the gas cylinder 8 is full of SF6 trace gas. SF6 tracer gas seals in gas receiver 8, and when needs used SF6 tracer gas, operating personnel only need pull the spanner, makes gas outlet head 11 open, and SF6 tracer gas in the gas receiver 8 then can release in the air through gas outlet head 11.
In the embodiment, a large amount of SF6 tracer gas is stored in a gas bottle 2, the gas bottle 2 is connected to a one-way charging connector 10 of a releaser 1 through a pressure reducing valve 4 and a ball valve 6, the volume of the SF6 tracer gas to be released is calculated through the air volume of a roadway, the pressure reducing valve 4 and the ball valve 6 are opened, the SF6 tracer gas in the gas bottle 2 is gradually flushed into a gas storage cylinder 8, the reading of a visual pressure gauge 9 is observed until the gas pressure in the gas storage cylinder 8 reaches a preset pressure and the gas storage cylinder 8 is full of the SF6 tracer gas, the ball valve 6 is closed, the releaser 1 is detached, the releaser 1 is placed at the center of the roadway, a wrench is pulled in the direction close to a handle 13, and the SF6 tracer gas is released into the air; after the SF6 tracer gas in the gas storage cylinder 8 is completely released, the releaser 1 is connected with the gas cylinder 2 again, the SF6 tracer gas is input into the gas storage cylinder 8, and the process is repeated until the volume of the SF6 tracer gas released into the air by the releasing device is equal to the previously calculated volume of the SF6 tracer gas to be released.
Through adopting the utility model discloses an above-mentioned technical scheme has obtained following profitable effect:
the utility model provides a mine air leakage detection SF6 tracer gas instantaneous release device, which changes the traditional working mode that several hours are needed from release to detection, and greatly saves the usage amount of SF6 tracer gas; the method has a series of advantages of simplicity, convenience, flexibility, easy operation, high intelligence and the like, and can be widely applied to detecting air leakage channels and air leakage quantity of mine goafs or fire zones and accurately measuring the air quantity of breeze tunnels to carry out instantaneous release of tracer gas. The releasing device is provided with a pressure display, the volume of the released SF6 tracer gas can be accurately calculated, and the using amount of the SF6 tracer gas in the detection process can be accurately grasped.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.
Claims (4)
1. The utility model provides a mining air leakage detects SF6 tracer gas instantaneous release device which characterized in that: the releasing device comprises a releaser and an air supply assembly connected with the releaser; the releaser comprises a one-way charging connector, a visible pressure gauge, a release wrench and an air storage cylinder; the air storage cylinder is provided with an air inlet and an air outlet, the air inlet is provided with a one-way inflating nozzle, and the one-way inflating nozzle is connected with the air supply assembly; the gas outlet is provided with a release wrench for controlling the gas outlet to be opened and closed, and the visual pressure gauge is arranged on the gas storage cylinder.
2. The mine air leakage detection SF6 trace gas instantaneous release device of claim 1, characterized in that: the air storage cylinder is of a cylindrical tubular structure, the air storage cylinder is hollow, two ends of the air storage cylinder are sealed, and the air inlet, the air outlet and the visual pressure gauge are all arranged at the same end of the air storage cylinder; the gas outlet is provided with a gas outlet head extending towards the direction far away from the gas storage cylinder, and the release wrench is arranged on the gas outlet head.
3. The mine air leakage detection SF6 trace gas instantaneous release device of claim 2, wherein: the releaser also comprises a handle, and the handle is closely adjacent to the wrench and is arranged at one end of the air outlet head far away from the air storage cylinder.
4. The mine air leakage detection SF6 trace gas instantaneous release device of claim 3, wherein: the gas supply assembly comprises a gas cylinder, a first pressure gauge, a pressure reducing valve, a second pressure gauge and a ball valve, the gas cylinder is connected with the one-way inflating nozzle through a gas pipe, and the first pressure gauge, the pressure reducing valve, the second pressure gauge and the ball valve are arranged on the gas pipe in sequence along the direction from the gas cylinder to the one-way inflating nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120489597.6U CN214149752U (en) | 2021-03-08 | 2021-03-08 | Mining air leakage detection SF6 tracer gas instantaneous release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120489597.6U CN214149752U (en) | 2021-03-08 | 2021-03-08 | Mining air leakage detection SF6 tracer gas instantaneous release device |
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| Publication Number | Publication Date |
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| CN214149752U true CN214149752U (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120489597.6U Active CN214149752U (en) | 2021-03-08 | 2021-03-08 | Mining air leakage detection SF6 tracer gas instantaneous release device |
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| CN (1) | CN214149752U (en) |
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2021
- 2021-03-08 CN CN202120489597.6U patent/CN214149752U/en active Active
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