CN104179657A - Passive pneumatic pressurizing device for underground coal mine - Google Patents
Passive pneumatic pressurizing device for underground coal mine Download PDFInfo
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- CN104179657A CN104179657A CN201410394459.4A CN201410394459A CN104179657A CN 104179657 A CN104179657 A CN 104179657A CN 201410394459 A CN201410394459 A CN 201410394459A CN 104179657 A CN104179657 A CN 104179657A
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- pneumatic
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- coal mine
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Abstract
The invention discloses a passive pneumatic pressurizing device for an underground coal mine, and belongs to the technical field of pneumatic pressurization. The device comprises a pneumatic motor, a compressor, a gas storage tank and a pneumatic control valve set, wherein both the pneumatic motor and the compressor are connected with an underground air compressing system; the pneumatic motor, the compressor, the gas storage tank and an underground pneumatic device are connected in sequence; the pneumatic control valve set is arranged between the pneumatic motor and the compressor. The device utilizes the underground air compressing system and adopts the passive driving to convert low-pressure and high-flow gas in a pipeline into pressure required by the underground pneumatic device, so that the device can completely replace an underground electric device, eliminates the potential safety hazards, improves the working efficiency of the coal mine pneumatic device, expands the application range of the pneumatic device in the underground coal mine, reduces the production cost, ensures the safety production of the coal mine, and has good economic and social benefits.
Description
Technical field
The present invention relates to passive Pneumatic booster device under a kind of coal mine, belong to Pneumatic booster technical field.
Background technique
Along with coal mine down-hole tunnel constantly extends, the pressure of air line also reduces gradually, air pressure deficiency causes underground pneumatic equipment working efficiency greatly to reduce, and air line transformation needs to drop into millions of even up to ten million funds, adopt electronic supercharging equipment can cause again downhole safety hidden danger, according to " notice of coal mining air compressor safety control " (No. [2011] 195, total coal dress of safety supervision) files specify requirement, movable air compressor can not be placed in the tunnel of getting working face and same face, adopting pipeline to connect certainly will cause pipeline long, the pressure loss is excessive.
At present, at home and abroad for this field of mine gas supercharging device, be all to adopt active supercharging device substantially, and be all small flow (< 1.0m3/min), can not meet current supercharging needs; And passive Pneumatic booster device is at present at home and abroad also always in blank, need to be developed.
Summary of the invention
The object of the present invention is to provide the passive Pneumatic booster device of a kind of new improved mine pneumatic equipment working efficiency, expansion pneumatic equipment application area under coal mine, the active supercharging device in alternative traditional down-hole.
The present invention adopts following technological scheme:
Passive Pneumatic booster device under a kind of coal mine, comprise pneumatic motor, compressor, gas holder and pneumatic control valve group, wherein, pneumatic motor is connected with down-hole compressed-air system by air line respectively with compressor, and the gas of down-hole compressed-air system must first filter before entering pneumatic motor and compressor; Described pneumatic motor is connected successively with compressor, gas holder and underground pneumatic equipment, and described compressor converts the low pressure and mass flow gas in air line in middle pressure flow gas or high-pressure low-flow gas, establishes cushion gas requirement to meet underground pneumatic; Described pneumatic control valve group is arranged between pneumatic motor and the outlet pipe of compressor; Described gas holder is used for storing pressurized gas, keeps underground pneumatic equipment gas consumption stable.
Described pneumatic motor is used for drive compression machine running, and its range of working pressure is 0.3-0.6MPa, and air consumption is 4.0-5.0m
3/ min; Described compressor is 0.3-0.4MPa, flow>=5.0m by pressure
3the gas of/min converts pressure>=0.5MPa, flow>=1.5m to
3the gas of/min.
The structure of described compressor adopts piston type or screw type, and its pressure ratio is 1-2 times.
Further, on described gas holder, be also provided with safety valve.
Under coal mine of the present invention, passive Pneumatic booster device utilizes down-hole compressed-air system, adopt passive drive, convert pipeline mesolow, large flow gas to pressure that underground pneumatic equipment needs, can replace downhole electric equipment completely, eliminate potential safety hazard, improve the working efficiency of colliery pneumatic equipment, expand pneumatic equipment application area under coal mine, reduce cost of production, ensured Safety of Coal Mine Production, there is good economic benefit and social benefit.
Brief description of the drawings
Fig. 1 is the schematic diagram of passive Pneumatic booster device under coal mine of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is specifically described.
As shown in Figure 1, under coal mine, passive Pneumatic booster device is mainly made up of pneumatic motor, compressor, pneumatic control valve group, gas holder and pipeline fittings, pneumatic motor is connected with down-hole compressed-air system by air line respectively with compressor, pneumatic motor, compressor, gas holder and underground pneumatic equipment are connected successively, pneumatic motor is the equipment for the running of drive compression machine, its working pressure is 0.3-0.6 MPa, and air consumption is 4.0-5.0 m
3/ min can normally work under 0.3 MPa pressure, its output power:>=7.0 kW.The gas that enters pneumatic motor, compressor must filter, and keeps clean, clean.
Compressor is the core of Pneumatic booster device, it is that the gas of low pressure and mass flow is converted to and meets the key equipment that the required pressure of underground pneumatic equipment requires, the structure of this compressor can adopt piston type or screw type etc., and suction port can bear 0.3-0.5Mpa, be not less than 5.0 m
3the gas of/min flow pressure, air horsepower>=5 kW, delivery temperature≤120 DEG C; Air displacement>=2.2 m3/min; Pressure ratio is 1-2 times.
Pneumatic control valve group is arranged between pneumatic motor and compressor; pneumatic control valve group is used for controlling pneumatic motor pressure and rotating speed on the one hand; be used on the other hand controlling the pressure of the compressor air-discharging mouth of pipe, guarantee that compressor is in optimum Working, there is the function such as overtemperature and overpressure protection simultaneously.
Gas holder is that it is equipped with pressure releasing means for storing certain pressurized gas, keeps pneumatic equipment gas consumption stable, ensures that pneumatic equipment stable working is reliable, and on gas holder, is provided with safety valve.
The present invention can utilize the energy of down-hole compressed-air system to drive the pneumatic equipment of down-hole to carry out work by Pneumatic booster device, the principle of passive Pneumatic booster device under coal mine of the present invention: utilize the pressure energy of air line itself to convert former pipeline mesolow, large flow gas in middle pressure flow or high-pressure low-flow gas, meet the job requirement of down-hole mining working surface pneumatic equipment, without external connection power.System capacity, according to law of conservation of energy, is shown below: E
0=E
1+ E
2, in formula: E
0=P
0v
0, the pressure energy before pipeline supercharging; E
1=P
1v
1, Pneumatic booster device consumes pressure energy; E
2=P
2v
2, the pressure energy after pipeline supercharging.
Claims (4)
1. passive Pneumatic booster device under a coal mine, comprise pneumatic motor, compressor, gas holder and pneumatic control valve group, it is characterized in that, pneumatic motor is connected with down-hole compressed-air system by air line respectively with compressor, and the gas of down-hole compressed-air system must first filter before entering pneumatic motor and compressor; Described pneumatic motor is connected successively with compressor, gas holder and underground pneumatic equipment, and described compressor converts the low pressure and mass flow gas in air line in middle pressure flow gas or high-pressure low-flow gas, establishes cushion gas requirement to meet underground pneumatic; Described pneumatic control valve group is arranged between pneumatic motor and the outlet pipe of compressor; Described gas holder is used for storing pressurized gas, and pressure releasing means is installed, and is used for keeping underground pneumatic equipment gas consumption stable.
2. passive Pneumatic booster device under a kind of coal mine according to claim 1, is characterized in that, described pneumatic motor is used for drive compression machine running, and its range of working pressure is 0.3-0.6MPa, and air consumption is 4.0-5.0m
3/ min; Described compressor is 0.3-0.4MPa, flow>=5.0m by pressure
3the gas of/min converts pressure>=0.5MPa, flow>=1.5m to
3the gas of/min.
3. passive Pneumatic booster device under a kind of coal mine according to claim 2, is characterized in that, the structure of described compressor adopts piston type or screw type, and its pressure ratio is 1-2 times.
4. according to passive Pneumatic booster device under a kind of coal mine one of claims 1 to 3 Suo Shu, it is characterized in that, on described gas holder, be also provided with safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410394459.4A CN104179657A (en) | 2014-08-12 | 2014-08-12 | Passive pneumatic pressurizing device for underground coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410394459.4A CN104179657A (en) | 2014-08-12 | 2014-08-12 | Passive pneumatic pressurizing device for underground coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104179657A true CN104179657A (en) | 2014-12-03 |
Family
ID=51960948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410394459.4A Pending CN104179657A (en) | 2014-08-12 | 2014-08-12 | Passive pneumatic pressurizing device for underground coal mine |
Country Status (1)
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| CN (1) | CN104179657A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321109A (en) * | 2016-09-22 | 2017-01-11 | 淮南矿业(集团)有限责任公司 | Construction process and system for fully mechanized excavation face |
| CN106839908A (en) * | 2017-01-11 | 2017-06-13 | 重庆大学 | Liquid carbon dioxide phase transformation fracturing device deep hole pusher |
| CN108374640A (en) * | 2018-03-26 | 2018-08-07 | 中煤科工集团西安研究院有限公司 | The soft projecting coal bed foam pressure-increasing directional drilling equipment of underground coal mine and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321109A (en) * | 2016-09-22 | 2017-01-11 | 淮南矿业(集团)有限责任公司 | Construction process and system for fully mechanized excavation face |
| CN106839908A (en) * | 2017-01-11 | 2017-06-13 | 重庆大学 | Liquid carbon dioxide phase transformation fracturing device deep hole pusher |
| CN106839908B (en) * | 2017-01-11 | 2018-03-23 | 重庆大学 | Liquid carbon dioxide phase transformation fracturing device deep hole pusher |
| CN108374640A (en) * | 2018-03-26 | 2018-08-07 | 中煤科工集团西安研究院有限公司 | The soft projecting coal bed foam pressure-increasing directional drilling equipment of underground coal mine and method |
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Application publication date: 20141203 |
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| RJ01 | Rejection of invention patent application after publication |