CN201786311U - Drilling gas blowout preventor - Google Patents
Drilling gas blowout preventor Download PDFInfo
- Publication number
- CN201786311U CN201786311U CN2010201987770U CN201020198777U CN201786311U CN 201786311 U CN201786311 U CN 201786311U CN 2010201987770 U CN2010201987770 U CN 2010201987770U CN 201020198777 U CN201020198777 U CN 201020198777U CN 201786311 U CN201786311 U CN 201786311U
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Abstract
The utility model provides a drilling gas blowout preventor, which comprises a gas drainage pipeline and a gas collector, a gas sensor for detecting the gas density ejected from a drilling hole, a control box connected with the gas sensor, a control valve respectively connected with the control box, the gas drainage pipeline and the gas collector and a power supply which is respectively connected with the gas sensor and the control box and supplies power for the gas sensor and the control valve. The gas sensor outputs a power failure signal to the control box when detecting that the gas density ejected from the drilling hole reaches a set value, the control box outputs a power signal or a power-off signal to the control valve to open or close the control valve, and the control valve opens or closes the gas drainage pipeline connected with the control valve. The gas drainage pipeline collects gas ejected from the drilling hole through the gas collector. The utility model relieves the burden of a gas drainage system, saves power resources, avoids the gas drainage pipe sucking in a large number of pulverized coal dregs, protects the performance of the gas drainage system and ensures the production safety.
Description
Technical field
The utility model embodiment relates to the mining technique field, relates in particular to a kind of boring gas blowout hookup.
Background technology
Gas control under the mine has become an important topic in production and the disaster prevention at present, the most effective means of gas control are gas drainage under suction, gas drainage under suction be unable to do without the construction of drilling, but the phenomenon that sprays gas when drilling is a difficult problem that influences drilling construction safety.
The boring gas blowout hookup that is used to absorb boring gas of the prior art is a pipeline of the gas gatherer directly being linked gas drainage system by flexible pipe, opens gas drainage under suction pipeline gate valve when drilling always, the methane gas of suction hell ejection.Increased the burden of gas drainage system like this, the waste electric power resource, and cause a large amount of coal dust bits of suction in the gas drainage under suction pipeline easily, and then reduced the performance of extraction system, also bring potential safety hazard to gas drainage system.
The utility model content
The utility model is the burden that overcomes gas drainage system in the prior art; save electric power resource, avoid the gas drainage under suction pipeline to suck a large amount of coal dust bits, thereby protected the performance of gas drainage system; guaranteed production safety, and a kind of boring gas blowout hookup is provided.
The utility model embodiment provides a kind of boring gas blowout hookup, comprising: gas pumping pipeline and gas gatherer also comprise: gas density that detection hell sprays and firedamp sensor from a power-off signal to control box that export; Receive described power-off signal and to the control box of control valve out-put supply signal or powered-down signal, described control box is connected with described firedamp sensor; The control valve that is connected with control box, gas pumping pipeline and gas gatherer respectively; Be connected with described control box with described firedamp sensor respectively, be the power supply of described firedamp sensor and the power supply of described control valve.
Further, described control valve is the air-powered electromagnetic combination valve that electromagnetic valve and pneumatic operated valve are formed.
Further, this device also comprises respectively and is connected, provides to described electromagnetic valve and described pneumatic operated valve the pressure ventilation pipe of pressing wind with described electromagnetic valve with described pneumatic operated valve.
Further, also be provided with coal dust bits scummer in the gas of filtering hell ejection between described gas pumping pipeline and the described gas gatherer.
Further, described electromagnetic valve is an explosion-proof solenoid valve.
Further, described control valve is connected with described gas pumping pipeline and described gas gatherer by the extraction flexible pipe respectively.
Further, described firedamp sensor is connected with described control box by the threeway junction box with described power supply.The boring gas blowout hookup that the utility model embodiment provides; when gas density reaches setting value near detecting boring; control gas gatherer is collected the methane gas that hell goes out ejection; reduced the burden of gas drainage system; saved electric power resource; and avoided the gas drainage under suction pipeline to suck a large amount of coal dust bits, thereby protected the performance of gas drainage system, guaranteed production safety.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The boring gas blowout hookup structural representation that Fig. 1 provides for embodiment of the utility model;
The boring gas blowout hookup structural representation that Fig. 2 provides for another embodiment of the utility model;
Control box circuit diagram in the boring gas blowout hookup that Fig. 3 provides for the utility model embodiment;
Gas collector structure schematic diagram in the boring gas blowout hookup that Fig. 4 provides for the utility model embodiment;
Scummer structural representation in the boring gas blowout hookup that Fig. 5 provides for the utility model embodiment.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
The boring gas blowout hookup structural representation that Fig. 1 provides for embodiment of the utility model, as shown in Figure 1, this device comprises: power supply 1, firedamp sensor 2, control valve 3, gas pumping pipeline 4, gas gatherer 5 and control box 6;
Concrete, power supply 1 is respectively firedamp sensor 2 and is connected with control box 6, is firedamp sensor 2 and control box 3 power supplies, and control valve 3 is connected with control box 6, gas pumping pipeline 4 and gas gatherer 5 respectively; The gas density that firedamp sensor 2 detects hell 10 ejections reaches setting value, to control box 6 outputs one power-off signal, and control box 6 output or powered-downs, control control valve 3 opens or closes the gas pumping pipeline 4 that is attached thereto; Gas pumping pipeline 4 is collected the gas of hell 10 ejections by gas gatherer 5.
Concrete, drilling construction scene under mine, when the methane gas concentration that detects the drilling construction scene when firedamp sensor 2 reached setting value, firedamp sensor 2 was to power-off signal of control box 6 outputs.The setting value of the methane gas concentration of firedamp sensor 2 can be selected according to the concrete needs of site operation, for example can select 0.5% to be setting value, and to realize that accidents such as gas exceeding limit appear in the scene of preventing, guarantee drilling construction safety is carried out smoothly.When methane gas concentration reached 0.5%, firedamp sensor 2 will be to control box 6 output power-off signals.Control box 6 is receiving under the power supply situation that power-off signal and power supply 1 provide, export a stable out-put supply, the gas pumping pipeline 4 that 3 conductings of control control valve are attached thereto, gas pumping pipeline 4 begin to collect the gas of hell 10 ejections by gas gatherer 5.Wherein, power supply 1 can be provided by the substation of monitoring system, and as a preferred embodiment, control valve 3 can be selected the valve of pneumatic actuation, in order to reach implementation result preferably, also can select the valve of other types certainly.
The boring gas blowout hookup that the utility model embodiment provides; when gas density reaches setting value near detecting boring; control gas gatherer is collected the methane gas that hell goes out ejection; reduced the burden of gas drainage system; saved electric power resource; and avoided the gas drainage under suction pipeline to suck a large amount of coal dust bits, thereby protected the performance of gas drainage system, guaranteed production safety.
Embodiment two
The boring gas blowout hookup structural representation that Fig. 2 provides for another embodiment of the utility model, as shown in Figure 2, this device comprises: power supply 1, firedamp sensor 2, control valve 3, gas pumping pipeline 4, gas gatherer 5 and control box 6.
Wherein, power supply 1 is respectively firedamp sensor 2 and is connected with control box 6, is firedamp sensor 2 and control valve 3 power supplies, and control valve 3 is connected with control box 6, gas pumping pipeline 4 and gas gatherer 5 respectively; The gas density that firedamp sensor 2 detects hell 10 ejections reaches setting value, to control box 6 outputs one power-off signal, and control box 6 output or powered-downs, control control valve 3 these control valves 3 open or close the gas pumping pipeline 4 that is attached thereto; Gas pumping pipeline 4 is collected the gas of hell 10 ejections by gas gatherer 5.
Further, be provided with control box 6 between firedamp sensor 2 and the control valve 3; Control box 6 receives the power-off signal of firedamp sensor 2 outputs and first power supply signal that power supply 1 provides, and to control valve 3 output second source signals.
Further, control valve 3 is the air-powered electromagnetic combination valve that electromagnetic valve and pneumatic operated valve are formed; Electromagnetic valve is used to receive the second source signal of control box 6 outputs, change from the pressure of pressure ventilation pipe 9 distinguished and admirable to, open the pneumatic operated valve that is communicated with gas pumping pipeline 4, gas pumping pipeline 4 is opened.
Further, also be provided with coal dust bits scummer 7 in the gas of filtering hell 10 ejection between gas pumping pipeline 4 and the gas gatherer 5.
Further, firedamp sensor 2 is connected with control box 6 by threeway junction box 8 with power supply 1.
Concrete, in the down-hole drilling job site, when on-the-spot firedamp sensor 2 detected the on-the-spot gas density of drilling construction and reaches setting value, the power-off signal of the about 2-3V of firedamp sensor 2 output one voltages and the power supply signal of power supply 1 supply were delivered to control box 6 together.Power supply 1 in the present embodiment is provided by substation, the power supply signal that substation flows to control box 6 is 18V, control box 6 is to providing stable 12V power supply for control valve 3, in order to reach implementation result preferably, present embodiment has been selected the air-powered electromagnetic combination valve, can also select the control valve of other types certainly according to the site operation needs.Electromagnetic valve energising back change press distinguished and admirable to, open the pneumatic operated valve valve, make extraction flexible pipe one end and 4 conductings of extraction system pipeline on the air-powered electromagnetic combination valve, the extraction flexible pipe other end is drawn the gas that boring sprays by the gas gatherer 5 of boring top.
When dropping to, on-the-spot gas is lower than when setting value, firedamp sensor 2 is no longer exported power-off signal, and then the air-powered electromagnetic combination valve also no longer includes the 12V power supply, solenoid control presses wind to recover the original flow direction, operated pneumatic valve is not closed because of there being the pneumatic power of pressure, then 4 of extraction flexible pipe and extraction system pipelines are closed disconnection, and the gas gatherer 5 of hell 10 tops is just no longer drawn the gas of ejection.
Need to prove that the control box 6 that provides in the present embodiment can be the threeway junction box, in a circuit board is arranged, referring to Fig. 3,11 connect power supply, 12 connect the probe control line, 13 connect electromagnetic valve, 14 is relay.One 3 core monitoring cable of 1 wiring horn mouth output of control box 6 (the about 2-3V of power-off signal of 1 core output firedamp sensor, other 2 cores for substation provide about 18V power supply+line and-line) enter 1 wiring horn mouth of control box 6.Control box 6 has 2 wiring horn mouths, from the 3 core monitoring cables of 1 wiring horn mouth access from the threeway junction box of firedamp sensor 2, the electromagnetic valve that the KA7812 integrated voltage stabilizer parts of 18V power supply on control box 6 interior circuit boards change into 12V power supply power circuit board and back uses, power-off signal is connected to the base stage of the positive-negative-positive triode on control box 6 interior circuit boards, triode is in to be ended or the operate in saturation attitude, the relay contact of control transistor emitter is in the operating conditions of disconnection or conducting, and the 12V power supply is supplied with the electromagnetic valve of back by relay contact output.Control box 6 from one 2 core monitoring cable of other 1 wiring horn mouth output (for relay output 12V power supply+line and-line) the power supply wiring mouth of access electromagnetic valve, for electromagnetic valve provides working power.
When electromagnetic valve energising work, the electric current that the substation of monitoring system offers electromagnetic valve and firedamp sensor 2 is total to about 230 milliamperes (substation is to about 2000 meters of the distance of firedamp sensor), meets the load power supply technique requirement of substation.Because this control circuit board for making by hand, therefore, can provide the power supply signal of 12V to control valve 3, can certainly be lower than the power supply signal of other values of 18V according to the actual conditions selection, the electric current that substation is provided is lower like this.
In addition, the air-powered electromagnetic combination valve that provides of present embodiment is made up of electromagnetic valve and pneumatic ball valve two parts.The air-powered electromagnetic combination valve can be selected the assembling device of 12V explosion-proof solenoid valve and pneumatic ball valve, can connect pressure ventilation pipe 9 by thin leather hose at the air inlet of electromagnetic valve, in construction, presses wind pressure about more than 4 kilograms.The caliber of pneumatic ball valve is 2 cun, and on 2 cun shifting block pipes on the termination gas pumping pipeline 4, the other end is connected to the gas gatherer of hanging above hell 10 5 by 2 cun flexible pipes.Wherein, electromagnetic valve has an air inlet, two ventholes, press wind to insert the air inlet of electromagnetic valve by pressure ventilation pipe 9, when electromagnetic valve does not receive stabilized power source signal from control box 6, electromagnetic valve is given vent to anger from a venthole, gives vent to anger from another venthole when electromagnetic valve receives the stabilized power source signal.Pneumatic ball valve has two air inlets and a venthole, when from the pressure wind of pressure ventilation pipe 9 venthole by electromagnetic valve when an air inlet enters, the cylinder of pneumatic ball valve drives valve handle rotation 90 degree and gives vent to anger from venthole, make the ball valve in the caliber also rotate 90 degree, the conducting of caliber two ends, thus gas pumping pipeline 4 can be opened; Drive valve handle and rotate 90 degree again and give vent to anger when entering cylinder from another air inlet from venthole from the pressure wind of pressure ventilation pipe 9 another venthole by electromagnetic valve, make the ball valve in the caliber also rotate 90 degree again, end at the caliber two ends, thus closed gas extraction pipeline 4.Employing is that to provide power supply with substation be the air-powered electromagnetic combination valve of assisting to power to press wind, only need the low current low-voltage just can realize the action execution, and can utilize outstation to supply with the power supply and the monitoring cable of firedamp sensor 2, special equipment need not be installed in addition and lay electricity cable.Press each job location, the general down-hole of wind to have, during execute-in-place, only need the pressure wind of little pressure just can realize, in addition, this air-powered electromagnetic combination valve also can be realized manual operation, thereby is more suitable for using at the scene.
On the extraction flexible pipe between gas gatherer 5 and the air-powered electromagnetic combination valve, a scummer 7 can also be installed, referring to Fig. 5, interior dress water; 18 connect electromagnetic valve pipeline end; 19 for being with public wire connection head, and 20 for flange connects, and 21 connect gas gatherer end; 22 is baffle plate; 23 for removing the slag pan mouth, and this scummer 7 can reduce the intrasystem coal dust bits of suction extraction once more, thereby avoided sucking in the gas pumping pipeline 4 a large amount of coal dust bits; protect the performance of gas drainage system, guaranteed production safety.
The boring gas blowout hookup that the utility model embodiment provides; when gas density reaches setting value near detecting boring; control gas gatherer is collected the methane gas that hell goes out ejection; reduced the burden of gas drainage system; saved electric power resource; this device is in the methane gas that absorbs the hell ejection; can also absorb near the coal dust bits that produce the hell; thereby avoided the gas drainage under suction pipeline to suck a large amount of coal dust bits; thereby protected the performance of gas drainage system, guaranteed production safety.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (7)
1. boring gas blowout hookup comprises: gas pumping pipeline and gas gatherer, it is characterized in that, and also comprise: detect the gas density of hell ejection and export the firedamp sensor of a power-off signal to control box; Receive described power-off signal and to the control box of control valve out-put supply signal or powered-down signal, described control box is connected with described firedamp sensor; The control valve that is connected with described control box, gas pumping pipeline and gas gatherer respectively; Be connected with described control box with described firedamp sensor respectively, be the power supply of described firedamp sensor and the power supply of described control valve
2. boring gas blowout hookup according to claim 1 is characterized in that, described control valve is the air-powered electromagnetic combination valve that electromagnetic valve and pneumatic operated valve are formed.
3. boring gas blowout hookup according to claim 2 is characterized in that, also comprises respectively being connected, providing to described electromagnetic valve and described pneumatic operated valve the pressure ventilation pipe of pressing wind with described pneumatic operated valve with described electromagnetic valve.
4. according to each described boring gas blowout hookup of claim 1～3, it is characterized in that, also be provided with the scummer of the coal dust bits in the gas of filtering hell ejection between described gas pumping pipeline and the described gas gatherer.
5. according to claim 2 or 3 described boring gas blowout hookups, it is characterized in that described electromagnetic valve is an explosion-proof solenoid valve.
6. boring gas blowout hookup according to claim 4 is characterized in that, described control valve is connected with described gas pumping pipeline and described gas gatherer by the extraction flexible pipe respectively.
7. according to claim 2 or 3 described boring gas blowout hookups, it is characterized in that described firedamp sensor is connected with described control box by the threeway junction box with described power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201987770U CN201786311U (en) | 2010-05-14 | 2010-05-14 | Drilling gas blowout preventor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201987770U CN201786311U (en) | 2010-05-14 | 2010-05-14 | Drilling gas blowout preventor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786311U true CN201786311U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201987770U Expired - Fee Related CN201786311U (en) | 2010-05-14 | 2010-05-14 | Drilling gas blowout preventor |
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| CN (1) | CN201786311U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242615A (en) * | 2010-05-14 | 2011-11-16 | 淮南矿业(集团)有限责任公司 | Borehole gas blowout preventer |
| CN104358584A (en) * | 2014-11-28 | 2015-02-18 | 贵州盘江矿山机械有限公司 | Anti-blowout system for gas drainage extraction |
| CN106639952A (en) * | 2016-11-10 | 2017-05-10 | 中国矿业大学 | Wellhead sealing device used for well drilling video detecting |
-
2010
- 2010-05-14 CN CN2010201987770U patent/CN201786311U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242615A (en) * | 2010-05-14 | 2011-11-16 | 淮南矿业(集团)有限责任公司 | Borehole gas blowout preventer |
| CN102242615B (en) * | 2010-05-14 | 2014-07-23 | 淮南矿业(集团)有限责任公司 | Borehole gas blowout preventer |
| CN104358584A (en) * | 2014-11-28 | 2015-02-18 | 贵州盘江矿山机械有限公司 | Anti-blowout system for gas drainage extraction |
| CN106639952A (en) * | 2016-11-10 | 2017-05-10 | 中国矿业大学 | Wellhead sealing device used for well drilling video detecting |
| CN106639952B (en) * | 2016-11-10 | 2018-12-21 | 中国矿业大学 | A kind of well mouth sealing device for drilling well video detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20150514 |
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| EXPY | Termination of patent right or utility model |