CN2366581Y - Air compressor for increasing pressure in coal mine - Google Patents
Air compressor for increasing pressure in coal mine Download PDFInfo
- Publication number
- CN2366581Y CN2366581Y CN 99206175 CN99206175U CN2366581Y CN 2366581 Y CN2366581 Y CN 2366581Y CN 99206175 CN99206175 CN 99206175 CN 99206175 U CN99206175 U CN 99206175U CN 2366581 Y CN2366581 Y CN 2366581Y
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- compressor
- air
- air compressor
- explosion
- valve
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Abstract
The utility model relates to an air compressor for increasing pressure in coal mines, which has the main structure that the utility model is composed of a pneumatic control system, an explosion-proof safety system and a compressing mechanism, wherein, the pneumatic control system is composed of an intake pressure maintaining valve, a relief regulating valve, a start valve, etc., the explosion-proof safety system is composed of an explosion-proof and intrinsically safe magnetic starter, an intake over-pressure protective device, an intake excess voltage protector, etc. The air compressor achieves the purpose of direct air supply after the compressed air conveyed from a compressor plant is pressurized. The utility model overcomes the disadvantages of the existing air compressor in mines, which has the advantages of compact structure, good mobility, convenient operation, favorable explosion-proof performance and low energy consumption.
Description
The utility model relates to a kind of booster air compressor, specifically belongs to a kind of underground mine use booster air compressor.In the present public technology, realize that the method that the coal mine compressed air is supplied with has two kinds: the one, by conveyance conduit pressurized air is delivered to mining face under mine by being located at aboveground air compressor station.The subject matter that this method exists is that conveyance conduit is long more, resistance of pipe system loss, charge loss, thermal conversion are lost, leaked out, and it is just big more to lose, the compressed air pressure that consequently causes supplying with mining face under mine is on the low side, and influences engineering construction quality and construction speed.Another kind method is to work near the mining air compressor is placed in the colliery mining face under mine, and pressurized air directly is provided, and this method is very short because of steam line, has solved the problem that first method exists.But, because this Air Compressor source is directly taken under the coal mine, and the working environment of down-hole is generally all more abominable, for example: there was dampness in the air and dirty many dust, therefore the mining air compressor is sucking these air, be compressed in the rated pressure process, have main movement parts quick abrasion, rate of fault height, the short disadvantage of service cycle, be difficult to adapt to the needs of Coal Production development.
The purpose of this utility model provides a kind of underground mine use booster air compressor.This booster air compressor can be realized reliably low-pressure compressed air supercharging that aboveground air compressor station is provided by conveyance conduit realizing direct air feed as the underground air compressor again at coal mine downhole safety.Simultaneously these facility have compact structure, convenient operating maintenance, explosion-proof performance is good, energy consumption is low, the advantage of reliability and good economy performance.
The purpose of this utility model reaches by following technical proposals:
The utility model is a kind of underground mine use booster air compressor, and its main structure comprises compressor, pneumatic control system, anti-explosion safety protective system; Pneumatic control system is made up of starting valve etc., and the anti-explosion safety protective system is made up of devices such as Flameproof and intrinsically safe magnetic starter, overtemperature prote device, oil cut-off protector, no water protectors, and its structure outline is:
A, off-loading modulating valve, air inlet pressure maintaining valve and air-strainer have been connected in series at the front end of compressor;
B, in the anti-explosion safety protective system, set up the air inlet overpressure protector, air inlet under-voltage protection device; After two protector parallel connections, an end is connected on the suction port of air inlet pressure maintaining valve, and the other end is connected with the motor control loop of Flameproof and intrinsically safe magnetic starter.
The utility model compared with prior art, through after the adaptation, the one, the executive component of having realized the pressurized air supercharging is a compressor.Compressor sucks pressurized air that clean, low pressure in the mine steam line, periodically changes by compressor operating chamber volume, promotes compressed-air actuated pressure; Because what booster air compressor sucked is cleaning, low-pressure compressed air, the dirty many dust in down-hole that suck with the mining air compressor, the air of atmospheric conditions are different, thereby main movement parts service cycle is long, it is little to be compressed to the required compression ratio of same rated discharge pressure, the power that consumes is also just few, be about 35% of mining air compressor, the required working chamber volume of compressor also lacks simultaneously, and volume, the materials consumption of corresponding complete machine also decrease.The 2nd, in pneumatic control system, increased devices such as off-loading modulating valve, starting valve, air inlet pressure maintaining valve, realize that the booster air compressor suction pressure is stable, thereby realize the stable of exhaust pressure.The 3rd, on the basis of mining air compressor; Flameproof and intrinsically safe magnetic starter, overtemperature prote device, oil cut-off protector, no water protector are carried out adaptation and adjustment; and increase devices such as air inlet overpressure protector, the under-voltage device of air inlet; the fault electronic display system is set; realize the safe and reliable of complete machine operation, make things convenient for working service.
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.
Fig. 1 is the utility model embodiment's a complete machine structure schematic representation;
Fig. 2 is the utility model embodiment's a workflow diagram;
In conjunction with Fig. 1,2.The utility model is made up of compressor 2, pneumatic control system, anti-explosion safety protective system etc.Pneumatic control system comprises air inlet pressure maintaining valve 1; off-loading modulating valve 9; starting valve 10; air-strainer 11, minimum pressure maintaining valve 12, bleed valve 13; the anti-explosion safety protective system comprises Flameproof and intrinsically safe magnetic starter 3, overtemperature prote device 4, oil cut-off protector 5, no water protector 6, air inlet overpressure protector 7, air inlet under-voltage protection device 8 devices.Air inlet pressure maintaining valve 1 is the direct-acting type pressure regulator valve, and directly the armrest handle is handled pressure adjusting spring and regulated delivery pressure, can realize stepless voltage regulation automatically in the range of regulation of regulation, and keep being stable at setting.Compressor 2 is to borrow swept volume the periodic supercharging that changes with realization gas.In actual use, the gas consumption size variation is frequent, for controlling exhaust pressure within the specific limits, need to realize step-less adjustment tolerance through the tolerance automatic control tegulatingdevice, therefore at the suction port place of compressor 2 off-loading modulating valve 9 is housed, guarantees that with minimum pressure maintaining valve 12 minimum exhaust pressure is more than 0.4MPa simultaneously.Starting valve 10 is when machine start or parking, and the decompression relief arrangement action of control off-loading modulating valve 9 makes inlet close, and the bleed valve 13 of controlling relief opening simultaneously communicates with atmosphere, thereby realization starting under no load and zero load are stopped.
In order to ensure moving at coal mine downhole safety; meet the coal mine explosion-proof safety requirement; on the basis of mining air compressor; Flameproof and intrinsically safe magnetic starter 3, overtemperature prote device 4, oil cut-off protector 5, no water protector 6 are carried out adaptation and adjustment; promptly increase air inlet overpressure protector 7, air inlet under-voltage protection device 8 devices; the fault electronic display system is set, realizes the safe and reliable of complete machine operation, make things convenient for working service.
Narrate pressurized air flow process of the present utility model below in conjunction with Fig. 2: pass through air-strainer 11 for the low-pressure compressed air that comes from aboveground ground air compressor plant, air inlet pressure maintaining valve 1, off-loading modulating valve 9, compressed machine 2 superchargings, deliver to gas tank 15 and carry out Oil-gas Separation, the air that contracts of clean the pressures Queensland after separating is sent outside the machine for use.The oil flow process is: the lubricant oil of high temperature enters cooler 16 from the oil sump of gas tank 15 bottoms after the fuel sucking pipe coarse filtration, and cooling forms Queensland pressure oil after fine filter 17 is sucked by oil pump 18, to the in-cylinder injection of compressor 2, finishes lubrication oil circulation.Cooling water flow path: cooling water is by water filter 19 water inlet, enter cooler 16 cool cycles oil through no water protector 6 after, i.e. complete machine temperature peak); Hydraulic pressure protector 6 is installed on the water filter 19, before the cooler 16; The pressure oil of oil cut-off protector 5 picks up from the oil pipe before oil pump 18 and the compressor 2; Air inlet overpressure protector 7, the compressed air gas source of air inlet under-voltage protection device 8 picks up from before the air inlet pressure maintaining valve 1.
Claims (1)
- A kind of underground mine use booster air compressor, main structure comprise compressor (2), pneumatic control system, anti-explosion safety protective system; Pneumatic control system is made up of starting valve (10) etc., and the anti-explosion safety protective system is made up of Flameproof and intrinsically safe magnetic starter (3), overtemperature prote device (4), oil cut-off protector 5, no water protector devices such as (6), it is characterized in that:A, off-loading modulating valve (9), air inlet pressure maintaining valve (1) and air-strainer (11) have been connected in series at the front end of compressor (2);B, in the anti-explosion safety protective system, set up air inlet overpressure protector (7), air inlet under-voltage protection device (8); After two protectors (7,8) parallel connection, an end is connected on the suction port of air inlet pressure maintaining valve (1), and the other end is connected with the motor control loop of Flameproof and intrinsically safe magnetic starter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99206175 CN2366581Y (en) | 1999-03-24 | 1999-03-24 | Air compressor for increasing pressure in coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99206175 CN2366581Y (en) | 1999-03-24 | 1999-03-24 | Air compressor for increasing pressure in coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2366581Y true CN2366581Y (en) | 2000-03-01 |
Family
ID=34000535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99206175 Expired - Fee Related CN2366581Y (en) | 1999-03-24 | 1999-03-24 | Air compressor for increasing pressure in coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2366581Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085119A (en) * | 2011-11-04 | 2013-05-08 | 北京凌天世纪自动化技术有限公司 | Pneumatic chain saw |
| CN110185602A (en) * | 2018-02-23 | 2019-08-30 | 三禾电器(福建)有限公司 | A kind of method and apparatus for making air compressor machine realize constant pressure air feeding |
| CN111442180A (en) * | 2019-01-16 | 2020-07-24 | 上海广谋能源技术开发有限公司 | Method for storing compressed air by using tunnel |
-
1999
- 1999-03-24 CN CN 99206175 patent/CN2366581Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085119A (en) * | 2011-11-04 | 2013-05-08 | 北京凌天世纪自动化技术有限公司 | Pneumatic chain saw |
| CN110185602A (en) * | 2018-02-23 | 2019-08-30 | 三禾电器(福建)有限公司 | A kind of method and apparatus for making air compressor machine realize constant pressure air feeding |
| CN110185602B (en) * | 2018-02-23 | 2021-06-04 | 三禾电器(福建)有限公司 | Method and equipment for realizing constant-pressure air supply of air compressor |
| CN111442180A (en) * | 2019-01-16 | 2020-07-24 | 上海广谋能源技术开发有限公司 | Method for storing compressed air by using tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |