CN201635762U - Automatic water drainage device for coal mine gas extraction pipe - Google Patents
Automatic water drainage device for coal mine gas extraction pipe Download PDFInfo
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- CN201635762U CN201635762U CN2010201534234U CN201020153423U CN201635762U CN 201635762 U CN201635762 U CN 201635762U CN 2010201534234 U CN2010201534234 U CN 2010201534234U CN 201020153423 U CN201020153423 U CN 201020153423U CN 201635762 U CN201635762 U CN 201635762U
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- water
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- water drainage
- water inlet
- intrinsic safety
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Abstract
The utility model relates to an automatic water drainage device for a coal mine gas extraction pipe. The water drainage device is improved in that an L-shaped intrinsically safe electric pressure relief valve is arranged at an air inlet at the upper part of a water collecting cavity; one of the other two air outlets of the L-shaped intrinsically safe electric pressure relief valve is communicated with the upper part of a water inlet pipe, and the other air outlet thereof is communicated with a pressure ventilation pipe; the L-shaped intrinsically safe electric pressure relief valve and a water level control sensor are respectively connected with an integrated power signal input/output mechanism through conductive wires; a passive output contact of the water level control sensor and the L-shaped intrinsically safe electric pressure relief valve are connected with an intrinsically safe direct-current stabilized voltage power line through the conductive wires; a water inlet check valve is arranged at a water inlet of the water inlet pipe; and a water drainage check valve is mounted at a water drainage opening. The utility model outputs signals to the traditional safety monitoring system in a coal mine through a communication interface; and when in use, the water drainage condition or the water collection condition of the water drainage device and the serviceable condition of the device can be intuitively observed on the ground, so that the manual maintenance is reduced, and the water drainage efficiency is improved.
Description
Technical field
The utility model belongs to the dewatering installation that uses in coal mine or the tunnel, is specifically related to the effective tailrace of coal mine gas extraction.
Background technology
At present, the effective automatic tailrace of gas pumping of colliery use is to utilize the ball float principle, the mechanical adjustment discharging valve.Extraction pipe jettison gear is ponding under the high negative pressure state at ordinary times, mechanical adjustment mechanism is because the interior quality problem of extraction pipe, made it lose automatic regulatory function by corrosion easily, and the extraction pipe-line system that employing manually discharges water, behind the long-pending full water of tailrace, need manually to go to discharge water, time-consuming like this taking a lot of work, and also want temporary close extraction pump when discharging water, so just reduced the extraction rate.This properties of product instability does not have communication function, can not be at ground observation to the state of discharging water, if fault can not in time be found, the effect that discharges water is also undesirable, and the manual maintenance workload is big.
Summary of the invention
Realize the target of " protrusion-dispelling, explosion-proof, anti-transfiniting " in order to advance gas control, realize that the gas pumping system effectively catchments, discharges water automatically, save cost of human resources, realize the extraction maximizing efficiency, the utility model provides a kind of novel coal mine gas extraction effective automatic tailrace.
Concrete technical solution is as follows:
The effective automatic tailrace of coal mine gas extraction, comprise collect cavity 11, be provided with water level control sensor 8 in it, its top is provided with air inlet port, its underpart one side is being communicated with water inlet pipe 7, and its underpart opposite side is provided with dewatering outlet 12, and the air inlet port place on described collect cavity 11 tops is provided with the electronic pressure-relief valve 2 of L type intrinsic safety, two one of gas outlets in addition of the electronic pressure-relief valve 2 of L type intrinsic safety are communicated with water inlet pipe 7, and another connection is being communicated with pressure ventilation pipe; The electronic pressure-relief valve 2 of L type intrinsic safety is being connected integrated power supply signal input/output mechanism 10 by lead respectively with water level control sensor 8; The passive output contact of described water level control sensor 8 is connected with intrinsic safety D.C. regulated power supply line by lead with the electronic pressure-relief valve 2 of described L type intrinsic safety; The water inlet 13 of described water inlet pipe 7 is provided with into water non retern valve 1; On the described dewatering outlet 12 non retern valve 3 that discharges water is installed.
Useful technique effect of the present utility model is embodied in the following aspects:
1, the utlity model has communication interface, this communication interface signal outputs to the existing safety monitoring system in colliery, the open and-shut mode that on ground monitoring center monitoring terminal, shows tailrace in real time, during use, just can observe tailrace intuitively on ground is in the state of discharging water or is in the state of catchmenting, and the serviceable condition of device, reduced the manual maintenance amount, improved the efficient that discharges water.
2, use the utility model not need to change the design of coal mine safety monitoring system software, thereby can just not make full use of the coal mine safety monitoring system existing capability for safety monitoring system increases extra burden.
Need not start motor operated valve when 3, the utility model is anhydrous, prolong the application life of execution unit.
4, this tailrace maximum current is no more than 30mA.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is the utility model state diagram of catchmenting.
Among the above-mentioned figure: water inlet non retern valve 1, the electronic pressure-relief valve 2 of L type intrinsic safety, the non retern valve 3 that discharges water, the gas outlet (air inlet port) 4 of L type intrinsic safety motor operated valve, left side interface 5, right side interface 6, water inlet pipe 7, water level control sensor 8, tailrace shell 9, integrated power supply signal input/output mechanism 10, collect cavity 11, dewatering outlet 12, water inlet 13, extraction pipe 14.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1, the effective automatic tailrace of coal mine gas extraction comprises collect cavity 11, and collect cavity 11 outsides are provided with shell 9, are provided with water level control sensor 8 in the collect cavity 11, and its top is provided with air inlet port; Its underpart one side is being communicated with water inlet pipe 7, and water inlet pipe 7 is being communicated with extraction pipe 14, is installed in into water non retern valve 1 on the water inlet 13; Its underpart opposite side is provided with dewatering outlet 12, and the non retern valve 3 that discharges water is installed on the dewatering outlet 12.Air inlet port 4 places on collect cavity 11 tops are equipped with the electronic pressure-relief valve 2 of L type intrinsic safety, and two one of gas outlets in addition of the electronic pressure-relief valve 2 of L type intrinsic safety are passed through left side interface 5 and are communicated with water inlet pipes 7, and another is being communicated with pressure ventilation pipe by right side interface 6; The electronic pressure-relief valve 2 of L type intrinsic safety is being connected integrated power supply signal input/output mechanism 10 by lead respectively with water level control sensor 8; The passive output contact of described water level control sensor 8 is connected with intrinsic safety D.C. regulated power supply line by lead with the electronic pressure-relief valve 2 of described L type intrinsic safety.
Referring to Fig. 2, tailrace is in when catchmenting state, the air inlet port 4 of the electronic pressure-relief valve 2 of L type intrinsic safety and 6 blocking-up of right side interface, air inlet port 4 and 5 conductings of left side interface, the pressure at non retern valve 1 two ends of intaking this moment equates, water inlet non retern valve 1 is opened under the effect of gravity automatically, non retern valve 3 adhesive under the effect of extraction negative pressure that discharges water, and water flows to collect cavity under the effect of gravity.
Referring to Fig. 1, be in water in the tailrace water tank of the state of catchmenting when full, water level control sensor 8 outputs signal to the electronic pressure-relief valve 2 of L type intrinsic safety, make the air inlet port 4 and 5 blocking-up of left side interface of the electronic pressure-relief valve 2 of L type intrinsic safety, air inlet port 4 and 6 conductings of right side interface, atmosphere enters water tank, make the pressure at water non retern valve 1 two ends into unequal, the adhesive under the effect of negative pressure of water inlet non retern valve 1, because the effect of atmospheric pressure and hydraulic pressure is opened the non retern valve 3 that discharges water, water is under the effect of gravity simultaneously, flow out water tank, reach the purpose that discharges water automatically.
When catchmenting and discharging water the state conversion, be uploaded to RS-485 signal of monitoring system, to reach purpose in the ground central station monitoring.The utility model is pair of control in parallel contact on liquid level sensor output signal wiring terminal, and the leaving on mouthful control relay of the outstation of this control contact access security monitoring system is to reach the purpose in the ground central station monitoring.
Claims (1)
1. the effective automatic tailrace of coal mine gas extraction, comprise collect cavity (11), be provided with water level control sensor (8) in it, its top is provided with air inlet port, its underpart one side is being communicated with water inlet pipe (7), and its underpart opposite side is provided with dewatering outlet (12), it is characterized in that: the air inlet port place on described collect cavity (11) top is provided with the electronic pressure-relief valve of L type intrinsic safety (2), two one of gas outlets in addition of the electronic pressure-relief valve of L type intrinsic safety (2) are communicated with water inlet pipe (7), and another connection is being communicated with pressure ventilation pipe; The electronic pressure-relief valve of L type intrinsic safety (2) is being connected integrated power supply signal input/output mechanism (10) by lead respectively with water level control sensor (8); The passive output contact of described water level control sensor (8) is connected with intrinsic safety D.C. regulated power supply line by lead with the described electronic pressure-relief valve of L type intrinsic safety (2); The water inlet (13) of described water inlet pipe (7) is provided with into water non retern valve (1); The non retern valve that discharges water (3) is installed on the described dewatering outlet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201534234U CN201635762U (en) | 2010-04-02 | 2010-04-02 | Automatic water drainage device for coal mine gas extraction pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201534234U CN201635762U (en) | 2010-04-02 | 2010-04-02 | Automatic water drainage device for coal mine gas extraction pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635762U true CN201635762U (en) | 2010-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201534234U Expired - Fee Related CN201635762U (en) | 2010-04-02 | 2010-04-02 | Automatic water drainage device for coal mine gas extraction pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN201635762U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031954A (en) * | 2010-12-30 | 2011-04-27 | 河南理工大学 | Coal and rock bore hydraulic fracture experimental apparatus |
| CN102102532A (en) * | 2010-12-29 | 2011-06-22 | 三正集团股份有限公司 | Automatic drainage device for mine gas extraction pipe |
| CN102635401A (en) * | 2012-05-15 | 2012-08-15 | 方立胜 | Negative-pressure automatic water bleeding device |
| CN102704985A (en) * | 2012-05-18 | 2012-10-03 | 解波 | Automatic water draining device for coal mine gas extraction pipeline under negative pressure |
| CN102889098A (en) * | 2012-10-22 | 2013-01-23 | 淮南矿业(集团)有限责任公司 | Water discharging device of gas extraction pipeline |
| CN104675429A (en) * | 2015-01-29 | 2015-06-03 | 湖南科技大学 | Mining multistage intelligent drainage apparatus and method |
| CN105201547A (en) * | 2015-10-09 | 2015-12-30 | 河南理工大学 | Automatic water and slag discharging device in downward-hole gas extraction at water-rich area |
| CN109826664A (en) * | 2019-04-12 | 2019-05-31 | 中国矿业大学(北京) | A kind of coal bed gas extraction and drill ponding automatic-discharging integrated apparatus and method |
-
2010
- 2010-04-02 CN CN2010201534234U patent/CN201635762U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102532A (en) * | 2010-12-29 | 2011-06-22 | 三正集团股份有限公司 | Automatic drainage device for mine gas extraction pipe |
| CN102031954A (en) * | 2010-12-30 | 2011-04-27 | 河南理工大学 | Coal and rock bore hydraulic fracture experimental apparatus |
| CN102031954B (en) * | 2010-12-30 | 2013-06-12 | 河南理工大学 | Coal and rock bore hydraulic fracture experimental apparatus |
| CN102635401A (en) * | 2012-05-15 | 2012-08-15 | 方立胜 | Negative-pressure automatic water bleeding device |
| CN102635401B (en) * | 2012-05-15 | 2014-03-19 | 方立胜 | Negative-pressure automatic water bleeding device |
| CN102704985A (en) * | 2012-05-18 | 2012-10-03 | 解波 | Automatic water draining device for coal mine gas extraction pipeline under negative pressure |
| CN102889098A (en) * | 2012-10-22 | 2013-01-23 | 淮南矿业(集团)有限责任公司 | Water discharging device of gas extraction pipeline |
| CN104675429A (en) * | 2015-01-29 | 2015-06-03 | 湖南科技大学 | Mining multistage intelligent drainage apparatus and method |
| CN105201547A (en) * | 2015-10-09 | 2015-12-30 | 河南理工大学 | Automatic water and slag discharging device in downward-hole gas extraction at water-rich area |
| CN105201547B (en) * | 2015-10-09 | 2017-07-14 | 河南理工大学 | Hydrous fluids downhole mash gas extraction Auto-drainage slag-draining device |
| CN109826664A (en) * | 2019-04-12 | 2019-05-31 | 中国矿业大学(北京) | A kind of coal bed gas extraction and drill ponding automatic-discharging integrated apparatus and method |
| CN109826664B (en) * | 2019-04-12 | 2024-03-19 | 中国矿业大学(北京) | Integrated device and method for coal bed gas extraction and automatic drainage of accumulated water in drilling holes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20110402 |