CN201407065Y - High pressure pulsating water-injecting device for preventing coal or rock dynamic disaster - Google Patents
High pressure pulsating water-injecting device for preventing coal or rock dynamic disaster Download PDFInfo
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- CN201407065Y CN201407065Y CN2009201076341U CN200920107634U CN201407065Y CN 201407065 Y CN201407065 Y CN 201407065Y CN 2009201076341 U CN2009201076341 U CN 2009201076341U CN 200920107634 U CN200920107634 U CN 200920107634U CN 201407065 Y CN201407065 Y CN 201407065Y
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Abstract
The utility model discloses a high pressure pulsating water-injecting device for preventing coal or rock dynamic disaster, which comprises a high pressure water supplying system, a pulse pressure water outputting system and a pneumatic frequency adjustment control system, wherein the pulse pressure water outputting system is connected with the high pressure water supplying system and the pneumaticfrequency adjustment control system respectively and is controlled by the pneumatic frequency adjustment control system to impulse-outpour high pressure water supplied by the high pressure water supplying system. By injecting pulse high pressure water into coal beds, i.e., injecting the water with pressure changing periodically, and leading the water to permeate into different crannies and pores,coal mechanical property changes to the utmost, thus being beneficial to exhausting high pressure free gas, reducing the content of the gas in the coal, improving safety factor and lowering or eliminating protruding and impacting hazard of coal beds. The whole pulsating water-injecting device has simple structure, convenient use, reliable operation and good control efficiency, and is especially suitable for being used in hole-drilling and water-infusing processes of various coal beds.
Description
Technical field
The utility model relates in a kind of mine the device of coal-bed flooding, relates in particular to a kind of for preventing that high-pressure pulsating water filling that disasters such as coal and gas are outstanding, impulsion pressure take place from preventing and treating the device of coal rock dynamic disaster.
Background technology
Coal rock dynamic disasters such as coal and gas are outstanding, impulsion pressure, the serious threat Safety of Coal Mine Production has caused great spirit and psychological pressure for the underground work personnel.In recent years, along with the increase of the pit mining degree of depth and intensity, coal rock dynamic disaster increases year by year, more serious.It is prevented and treated for reducing the mine personnel injures and deaths, improve the mine anti-disaster ability, reducing property loss and have great importance.
In the prior art, for preventing and treating the outstanding measures such as gas drainage under suction, deep hole presplit blasting, coal-bed flooding, hydraulic slotted liner technique of often adopting.The control impulsion pressure then adopts stress relief borehole, presplitting release explosion, bring out measure such as the pre-water filling of explosion and coal seam separates danger.Along with the protrusion-dispelling technology constantly develops, many waterpower measures obtain promotion and application, as wetting agent and power the effective means that gas is handled is carried out in the coal seam by water filling device especially to coal-bed flooding, but existing these water filling devices because simple in structure, manufacturability is poor, protrusion-dispelling and protecting against shock effect are unsatisfactory, principle according to coal-bed flooding control dynamic disaster designs a kind of new water filling device, and improving flood effectiveness is problem to be solved in the utility model.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model provides the device of the effective high-pressure pulsating water filling control coal rock dynamic disaster of simple, the anti-dynamic disaster of a kind of technology.
The utility model is achieved through the following technical solutions:
The device of high-pressure pulsating water filling control coal rock dynamic disaster, comprise high service system, also comprise pulse pressure water output system and pneumatic frequency modulation control system, the pulse pressure water output system is connected with pneumatic frequency modulation control system with high service system respectively, and the control that the pulse pressure water output system is accepted pneumatic frequency modulation control system is injected into the water under high pressure pulsation that high service system provides in the boring.
Described pneumatic frequency modulation control system comprises pneumatic frequency modulation loop and the Pneumatic valve that is used with pneumatic frequency modulation loop, described pneumatic frequency modulation loop and Pneumatic valve are communicated with external source of the gas respectively, pulse control is responsible for producing in pneumatic frequency modulation loop, and Pneumatic valve is converted to pulse control signal with external source of the gas and outputs to the pulse pressure water output system.
Described pneumatic frequency modulation loop comprises two two five-way valves, two control air-capacitors and a frequency adjustment valve, described two control air-capacitors and two two five-way valves constitute alternation square wave pulse circuit, the frequency adjustment valve is connected on the regulating loop of two five-way valves, and the gas flow on the regulating loop is flow through in the restriction of frequency adjustment valve.
Described pneumatic frequency modulation loop comprises that also two are regulated air-capacitors, regulates air-capacitor and is connected on the regulating loop on the connecting path between two five-way valves and two the control air-capacitors, regulates air-capacitors for two and regulates two gas capacities of controlling air-capacitors respectively.
Described pulse pressure water output system comprises reversal valve, delivery port, high-pressure overflow valve and low pressure relief valve, reversal valve is connected on the connecting line between delivery port and the high service system, the unlatching of Pneumatic valve control reversal valve, high-pressure overflow valve is connected between high service system and the reversal valve, and low pressure relief valve is connected on the current loop of reversal valve.
At least comprise in the described pulse pressure water output system that a cover and reversal valve parallel connection and current controlling party are to opposite reverse reversal valve and delivery port, oppositely reversal valve is accepted the control of Pneumatic valve simultaneously, oppositely reversal valve is connected on the connecting line between high-pressure overflow valve and the reversal valve, and oppositely the current loop of reversal valve is communicated with low pressure relief valve.
Also comprise strainer and residual cake valve in the described pulse pressure water output system, strainer and residual cake valve are connected on the delivery port.
By technique scheme as can be seen, the device of high-pressure pulsating water filling control coal rock dynamic disaster described in the utility model, by on high service system, connecting pulse pressure water output system and pneumatic frequency modulation control system, the coal bed drilling the injecting process is become to the coal seam inject the pulsation water under high pressure, be the periodically variable water of injection pressure, make water penetrate into different cracks, in the hole, increase the wetability of coal body, the pulsation water under high pressure can also make the crack constantly connect, enlarge, enlarge wetting radius, maximum magnitude ground changes the coal seam physico-mechanical properties, and the water under the different pressures also can be to the coal body crack, hole produces the effect repeatedly of " expansion-contraction-expansion ", and the coal body mechanical property is changed.The pulsation water under high pressure helps the discharging of free high pressure gas, reduces the gas bearing capacity in the coal body, the outstanding and shock hazard in coal seam is lowered or eliminates by multiple effect.Whole water filling device is simple in structure, easy to use, operation is reliable, prevention effect is good, when being particularly suitable for preventing and treating coal rock dynamic disaster the boring water filling is used.
Description of drawings
Fig. 1 is the structure principle chart of high-pressure pulsating water filling control coal rock dynamic disaster device described in the utility model.
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing 1:
The device of high-pressure pulsating water filling control coal rock dynamic disaster described in the utility model comprises high service system, pneumatic frequency modulation control system and pulse pressure water output system.Wherein, high service system is responsible for the output of water under high pressure, mainly comprises the high-pressure plunger pump 3 of water intaking valve control and the gas source triplet 1 and the air motor 2 of power are provided for high-pressure plunger pump 3.
Pneumatic frequency modulation control system is provided by independent source of the gas dyad 11, and pneumatic frequency modulation control system is responsible for producing the work of air pulse control impuls press water output system.Pneumatic frequency modulation control system comprises pneumatic frequency modulation loop and the Pneumatic valve 12 that is used with pneumatic frequency modulation loop, Pneumatic valve 12 is two five-way valves of a gas control, pneumatic frequency modulation loop and Pneumatic valve 12 are communicated with source of the gas dyad 11 respectively, pneumatic frequency modulation loop comprises two two five-way valves 13 again, 16, four air-capacitors and a frequency adjustment valve 15, wherein control air-capacitors 14 and two two five-way valves 13 for two, 16 constitute alternation square wave pulse circuit, be responsible for externally output pulse control signal, regulating air-capacitor 17 for two is connected on the regulating loop on two five-way valves 16 and two connecting paths of controlling between the air-capacitor 14, regulate the gas capacity size that air-capacitor 17 is used to regulate two control air-capacitors 14 for two, control the speed of two control air-capacitors, 14 inflations.Frequency adjustment valve 15 connects on the regulating loop of two five-way valves 16, and the gas flow on the regulating loop is flow through in 15 restrictions of frequency adjustment valve, and control obtains the frequency of pulse control signal.Two two five- way valves 13,16 connect direction toward complex transformation under the effect of two control air-capacitors 14, make the airflow direction pests occurrence rule conversion of flowing out two five-way valves 13, promptly form the corresponding control operation of Pneumatic valve 12 generations that pulse control signal control is attached thereto, finally make the gas formation pulse signal that source of the gas dyad 11 flows through Pneumatic valve 12 output in the pulse pressure water output system water filling work of control impuls press water output system.Certainly, can not establish as required yet and regulate air-capacitor 17, only the control that realizes two two five- way valves 13,16 by two control air-capacitors 14.
The pulse pressure water output system is connected between high service system and the pneumatic frequency modulation control system, and the pulse pressure water output system is accepted the control of pneumatic frequency modulation control system and high pressure water injection is outpoured by delivery port 8 pulsation.The pulse pressure water output system comprises reversal valve 6, with reversal valve 6 parallel connections and current controlling party to opposite reverse reversal valve 7, high-pressure overflow valve 4, low pressure relief valve 5 and be connected reversal valve 6 and reverse two delivery ports 8 on the reversal valve 7, reversal valve 6 and oppositely reversal valve 7 be connected on the connecting line between two delivery ports 8 and the high-pressure plunger water pump 3, reversal valve 6 and oppositely in the reversal valve 7 controlling party of current on the contrary, promptly two delivery ports 8 are in the state of another water outlet of water inlet all the time, and Pneumatic valve 12 is controlled reversal valve 6 and the oppositely unlatching of reversal valve 7 simultaneously.High-pressure overflow valve 4 is connected high-pressure plunger water pump 3 and provides on the pipeline of water under high pressure for reversal valve 6 and reverse reversal valve 7, and low pressure relief valve 5 is connected on the current loop of reversal valve 6 and reverse reversal valve 7.Certainly, reverse reversal valve in parallel with reversal valve and delivery port also can have many covers, its current flow out direction can be identical with reversal valve also can be opposite, the needs that concrete quantity is used according to reality are decided.
When preventing two delivery port 8 Inlet and outlet waters, coal petrography slag and dust enter in reverse reversal valve 7 and the reversal valve 6, on two delivery ports 8, also be connected with strainer 10 and residual cake valve 9 respectively, the coal petrography slag and the dust that flow in the strainer 10 main interception courses of work, residual cake valve 9 is responsible for tackling the coal petrography slag and the dust discharge line of post precipitation.
In the course of work, when needing in two borings water filling, high-pressure water drives high-pressure plunger pump 3 by air motor 2 and produces, gas source triplet 1 is responsible for air motor 2 source of the gas is provided, simultaneously, source of the gas dyad 11 begins to provide source of the gas for pneumatic frequency modulation control system, source of the gas dyad 11 sources of the gas can be drawn from source of the gas pipe before the gas source triplet 1 of air motor 2, two control air-capacitors 14 and two two five-way valves 13 in pneumatic frequency modulation control system, the 16 alternation square wave pulse circuits that constitute can constantly produce pulse control signal, and the Pneumatic valve 12 that control is attached thereto produces corresponding pulsation control operation.When source of the gas dyad 11 gases flow through Pneumatic valve 12, will under the effect of Pneumatic valve 12 continuous conversion air flow stream outgoing directions, form new pulse signal output, control reversal valve 6 and reverse reversal valve 7 carry out the conversion that current flow out direction simultaneously.As when the water under high pressure of reversal valve 6 output during with the water injecting drilling connection, hydraulic pressure is in high pressure conditions in the water injecting drilling on the work plane, water under high pressure constantly pours in the boring, simultaneously, oppositely water stream channels just are communicated with low pressure relief valve 5 in the reversal valve 7, and the hydraulic pressure in the work plane water injecting drilling relative with reverse reversal valve 7 then is in low-pressure state.And when pulse signal is controlled reversal valve 6 and oppositely reversal valve 7 commutates simultaneously, hydraulic pressure in originally relative with the reversal valve 6 work plane water injecting drilling then can be in low-pressure state, and the hydraulic pressure in the work plane water injecting drilling relative with reverse reversal valve 7 then has been in high pressure conditions.Switch so repeatedly, just can produce pulse in two work plane borings, improved the penetration of high pressure water injection.
Regulate air-capacitors 17, two five-way valves 16 and a frequency adjustment valve 15 by two and constitute regulating loop, the adjustable range of one-sided output can be at 15-120 time/min, adjust the quantity or the size of air-capacitor, can also obtain the slower or adjustable range faster of frequency.High-pressure overflow valve 4 and low pressure relief valve 5 all can carry out the pressure adjustment by manual voltage regulation, and during water filling, superpressure part current are let out recovery tank by high-pressure overflow valve 4, and the low-pressure section current also can be let out recovery tank by low pressure relief valve 5.Owing to from the water that boring is flowed back to, contain more coal petrography slag and dust probably, can be and be connected the strainer 10 at delivery port 8 places effectively with its interception, protection reversal valve 6, oppositely reversal valve 7 and low pressure relief valve 5 are not blocked stuck or cross quick-wearing.When work plane boring is in high pressure conditions again, coal petrography slag and dust can be swept away again by High-Pressure Water, in heavy in section strainer 10, water flow velocity is very slow, coal petrography slag and dust will be deposited to strainer 10 bottoms again, regularly remove by residual cake valve 9, guaranteed smooth, the safe handling of coal seam pulsed infusion device.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (7)
1, the device of high-pressure pulsating water filling control coal rock dynamic disaster, comprise high service system, it is characterized in that, also comprise pulse pressure water output system and pneumatic frequency modulation control system, described pulse pressure water output system is connected with pneumatic frequency modulation control system with high service system respectively, and the control that the pulse pressure water output system is accepted pneumatic frequency modulation control system is injected into the water under high pressure pulsation that high service system provides in the boring.
2, the device of high-pressure pulsating water filling control coal rock dynamic disaster according to claim 1, it is characterized in that, described pneumatic frequency modulation control system comprises pneumatic frequency modulation loop and the Pneumatic valve that is used with pneumatic frequency modulation loop, described pneumatic frequency modulation loop and Pneumatic valve are communicated with external source of the gas respectively, pulse control is responsible for producing in pneumatic frequency modulation loop, and Pneumatic valve is converted to pulse control signal with external source of the gas and outputs to the pulse pressure water output system.
3, the device of high-pressure pulsating water filling control coal rock dynamic disaster according to claim 2, it is characterized in that, described pneumatic frequency modulation loop comprises two two five-way valves, two control air-capacitors and a frequency adjustment valve, and described two control air-capacitors and two two five-way valves constitute alternation square wave pulse circuit; Described frequency adjustment valve is connected on the regulating loop of two five-way valves, and the gas flow on the regulating loop is flow through in the restriction of frequency adjustment valve.
4, the device of high-pressure pulsating water filling control coal rock dynamic disaster according to claim 3, it is characterized in that, comprise that also two are regulated air-capacitor, described adjusting air-capacitor is connected on the regulating loop on the connecting path between two five-way valves and two the control air-capacitors, regulates the gas capacities that air-capacitors are regulated two control air-capacitors respectively for two.
5, the device of high-pressure pulsating water filling control coal rock dynamic disaster according to claim 1, it is characterized in that, described pulse pressure water output system comprises reversal valve, delivery port, high-pressure overflow valve and low pressure relief valve, described reversal valve is connected on the connecting line between delivery port and the high service system, the unlatching of Pneumatic valve control reversal valve; Described high-pressure overflow valve is connected between high service system and the reversal valve, and low pressure relief valve is connected on the current loop of reversal valve.
6, the device of high-pressure pulsating water filling control coal rock dynamic disaster according to claim 5, it is characterized in that, at least comprise that also a cover and reversal valve parallel connection and current controlling party are to opposite reverse reversal valve and delivery port, described reverse reversal valve is accepted the control of Pneumatic valve simultaneously, oppositely reversal valve is connected on the connecting line between high-pressure overflow valve and the reversal valve, and oppositely the current loop of reversal valve is communicated with low pressure relief valve.
7, according to the device of claim 5 or 6 described high-pressure pulsating water filling control coal rock dynamic disasters, it is characterized in that also comprise strainer and residual cake valve, described strainer and residual cake valve are connected on the delivery port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201076341U CN201407065Y (en) | 2009-04-30 | 2009-04-30 | High pressure pulsating water-injecting device for preventing coal or rock dynamic disaster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201076341U CN201407065Y (en) | 2009-04-30 | 2009-04-30 | High pressure pulsating water-injecting device for preventing coal or rock dynamic disaster |
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| CN201407065Y true CN201407065Y (en) | 2010-02-17 |
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| CN2009201076341U Expired - Lifetime CN201407065Y (en) | 2009-04-30 | 2009-04-30 | High pressure pulsating water-injecting device for preventing coal or rock dynamic disaster |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539028B (en) * | 2009-04-30 | 2011-12-28 | 中国矿业大学(北京) | Apparatus for preventing and controlling coal or rock dynamic disaster by high-pressure pulse water injection |
| CN104453984A (en) * | 2014-12-01 | 2015-03-25 | 河南立升怡兴油气技术开发有限公司 | Outburst prevention method for mine gas by adopting pressure pulses |
| CN107829998A (en) * | 2017-12-04 | 2018-03-23 | 洛阳理工学院 | A kind of new gas-liquid power conversion method |
| CN113107575A (en) * | 2021-04-27 | 2021-07-13 | 太原理工大学 | Coal seam double-cylinder high-voltage pulse fluctuation water injection generating device |
-
2009
- 2009-04-30 CN CN2009201076341U patent/CN201407065Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539028B (en) * | 2009-04-30 | 2011-12-28 | 中国矿业大学(北京) | Apparatus for preventing and controlling coal or rock dynamic disaster by high-pressure pulse water injection |
| CN104453984A (en) * | 2014-12-01 | 2015-03-25 | 河南立升怡兴油气技术开发有限公司 | Outburst prevention method for mine gas by adopting pressure pulses |
| CN107829998A (en) * | 2017-12-04 | 2018-03-23 | 洛阳理工学院 | A kind of new gas-liquid power conversion method |
| CN113107575A (en) * | 2021-04-27 | 2021-07-13 | 太原理工大学 | Coal seam double-cylinder high-voltage pulse fluctuation water injection generating device |
| CN113107575B (en) * | 2021-04-27 | 2023-04-28 | 太原理工大学 | Coal seam double-cylinder high-pressure pulse fluctuation water injection generating device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100217 Effective date of abandoning: 20090430 |