CN202560317U - Automatic water discharging device and gas extraction system - Google Patents
Automatic water discharging device and gas extraction system Download PDFInfo
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- CN202560317U CN202560317U CN 201220144795 CN201220144795U CN202560317U CN 202560317 U CN202560317 U CN 202560317U CN 201220144795 CN201220144795 CN 201220144795 CN 201220144795 U CN201220144795 U CN 201220144795U CN 202560317 U CN202560317 U CN 202560317U
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Abstract
The utility model provides an automatic water discharging device and a gas extraction system. The automatic water discharging device comprises a water storage assembly having a water storage cavity, which is sealed-communicated thereon with a water inlet pipe and a water outlet pipe, wherein the water inlet pipe has arrangement height higher than that of the water outlet pipe, and is used for communication with a gas extraction pipeline; and a water discharging assembly comprising a water discharging valve arranged in the passage of the water outlet pipe and used for opening or closing the water outlet pipe according to the water level in the water storage cavity. The automatic water discharging device and gas extraction system provided by the utility model solve the problem of failure of timely discharge of the accumulated water in the prior art, greatly improves the efficiency of accumulated water discharge, reduces the workload of manual maintenance, and saves the labor resource and maintenance cost.
Description
Technical field
The utility model relates to gas pumping pipeline structure technology, relates in particular to a kind of automatic tailrace and gas pumping system.
Background technology
For guaranteeing Safety of Coal Mine Production, before carrying out digging operation, carry out gas pumping earlier and become one of effective measures of eliminating colliery operation danger, and in industry be widely used, to reach before digging operation the purpose of ton coal gas bearing capacity in the control coal seam.
Existing mine extraction system has and is communicated with extraction pump and the gas pumping pipeline that is provided with, so that the methane gas in the coal seam is extracted out along pipeline.The gas pumping pipeline has the pipe that more piece is communicated with in order.Because the effect of extraction pump, the pressure in the gas pumping pipeline is negative pressure state.Owing to also contain moisture in the coal seam; In the gas pumping process; These moisture can and methane gas together by extraction in the gas pumping pipeline, accumulate over a long period, these moisture can form a large amount of ponding in the gas pumping pipeline; Thereby reduced the accommodation space of gas in the extraction pipeline, influenced the gas pumping effect.Therefore, need the ponding in the pipeline of discharging extraction regularly, to guarantee the gas pumping effect.
In the prior art, every on the gas pumping pipeline at a distance from certain distance, can on pipe, offer drainage openings, drainage openings is provided with discharging valve, opens these discharging valves by manual regular, so that the ponding in the gas pumping pipeline is discharged.Because the cycle that ponding compiles in the gas pumping pipeline is uncertain, also can't realize draining through the mode that the discharging valve unlatching cycle is set.The safety of producing for guaranteeing should not adopt also in the gas pumping system that conducting electricity can appear in electromagnetic valve or other, spare part on fire, or the parts that need electric energy to drive.
There is following problem in artificial drainage: because the water accumulating volume in the gas pumping pipeline can't observe intuitively, can only by virtue of experience estimate the water accumulating volume in the gas pumping pipeline, so use the manual type draining, promptness is poor; In addition, use the manual type draining, need to drop into a large amount of manpowers, cost of production is high.
The utility model content
The utility model provides a kind of automatic tailrace and gas pumping system, is used to realize the automatic draining of gas pumping pipeline.
The utility model provides a kind of automatic tailrace, wherein, comprising:
The water storage assembly has water storage cavity, and sealing is communicated with water inlet pipe and outlet pipe on the said water storage cavity, and being provided with of said water inlet pipe highly is higher than being provided with highly of said outlet pipe, and said water inlet pipe is used for and the gas pumping pipeline connection;
The assembly that discharges water comprises discharging valve, and said discharging valve is arranged in the path of said outlet pipe, is used for just opening or closing said outlet pipe according to the water level in the said water storage cavity.
Aforesaid automatic tailrace, preferably, said water storage assembly comprises:
Storage tank, uncovered setting, said storage tank has the cavity as said water storage cavity; Offer water inlet that is communicated with said water inlet pipe and the delivery port that is communicated with said outlet pipe on the said storage tank;
Tank lid, seal cover is on said storage tank uncovered.
Aforesaid automatic tailrace, preferably,
Also offer air inlet on the said storage tank, the said assembly that discharges water also comprises the two-position three-way valve that is positioned at said water storage cavity inside;
Three openings of said two-position three-way valve link to each other with water storage cavity, air inlet and water inlet pipe respectively; And between said air inlet and water inlet pipe, switch, be used for through the said water storage cavity of said water inlet pipe conducting and said gas pumping pipeline or through the said water storage cavity of said air inlet conducting and the external world;
Said discharging valve is a pneumatic control valve, and said discharging valve is opened said outlet pipe when the pressure of water storage cavity side equals atmospheric side pressure, and closes said outlet pipe during less than atmospheric side pressure at the pressure of water storage cavity side.
Aforesaid automatic tailrace, preferably, said two-position three-way valve comprises:
Valve body is fixed on the said tank lid, vertically offers valve pocket in the said valve body; Also offer first opening, second opening and the 3rd opening that are communicated with said valve pocket on the said valve body; Said first opening, second opening and the 3rd opening are offered from bottom to top in order; Said first opening is communicated with said water inlet pipe, and said second opening is communicated with said water storage cavity, and said the 3rd opening is in communication with the outside through air inlet;
Valve core rod, an end are slidingly installed in the said valve pocket, and the other end stretches out said valve pocket and is contained in the said water storage cavity, and said valve core rod goes up and down along with the up-down of the water level in the said water storage cavity;
O-ring seal; Quantity is two; Fixed interval stretches into an end of said valve pocket at said valve core rod; Said two-position three-way valve is under the state of primary importance, and two O-ring seals are positioned at the both sides of said first opening and second opening, to separate with second opening and first open communication and with the 3rd opening; Said two-position three-way valve is in the state of the second place, and two O-ring seals are positioned at the both sides of said second opening and the 3rd opening, to separate with second opening and the 3rd open communication and with first opening.
Aforesaid automatic tailrace, preferably: said tank lid is transparent.
Aforesaid automatic tailrace, preferably, the said assembly that discharges water also comprises:
Ball float is fixed on the other end of said valve core rod, and said ball float drives the up-down of said valve core rod under the buoyancy of water effect in said water storage cavity.
Aforesaid automatic tailrace, preferably, the said assembly that discharges water also comprises:
First stop nut is fixed on the other end of said valve core rod and is positioned at the top of said ball float;
Second stop nut is fixed on the other end of said valve core rod and is positioned at the below of said ball float.
Aforesaid automatic tailrace, preferably, the said assembly that discharges water also comprises:
Iron pan, said iron pan is fixed on the said valve core rod, and between said first stop nut and said ball float;
Magnet is fixed on the below of said two-position three-way valve, so that when said two-position three-way valve is in the second place, adsorb said iron pan.
Aforesaid automatic tailrace, preferably, the said assembly that discharges water also comprises:
Magnetic conductor is fixed on the below of said magnet.
The utility model also provides a kind of gas pumping system, comprises the gas pumping pipeline, wherein, is connected with the automatic tailrace that the utility model provides on the said gas pumping pipeline.
In the technique scheme; Automatically tailrace is collected the ponding in the gas pumping pipeline through the water storage assembly is set; Comprise the operation that realizes discharging water of the assembly that discharges water of discharging valve through setting; The action that discharges water of discharging valve is just to be decided by the water level in the water storage cavity, compares with the manually mode of discharging water of the prior art, and the automatic tailrace that technique scheme provides can just be realized discharging water automatically according to the water level in the water storage cavity; In addition,, can not cause the gas in the gas pumping pipeline to reveal, use safe, good reliability because discharging valve is just to open or close outlet pipe according to water level.
Description of drawings
The principle schematic of the automatic tailrace that Fig. 1 provides for the utility model embodiment one;
The principle schematic of the automatic tailrace that Fig. 2 provides for the utility model embodiment two;
Fig. 3 is the discharging valve at A position among Fig. 2 and the annexation sketch map between the outlet pipe;
Fig. 4 is in the sketch map of primary importance for two-position three-way valve among Fig. 2;
Fig. 5 is in the sketch map of the second place for two-position three-way valve among Fig. 2.
The specific embodiment
Referring to Fig. 1, the utility model embodiment one provides a kind of automatic tailrace, comprising the water storage assembly and the assembly that discharges water; The water storage assembly has water storage cavity 1, and sealing is communicated with water inlet pipe 2 and outlet pipe 3 on the water storage cavity 1, and being provided with of water inlet pipe 2 highly is higher than being provided with highly of outlet pipe 3, and water inlet pipe 2 is used for and the gas pumping pipeline connection; The assembly that discharges water comprises discharging valve 4, and discharging valve 4 is arranged in the path of outlet pipe 3, is used for just opening or closing outlet pipe 3 according to the water level in the water storage cavity 1.
For smooth mash gas extraction; Atmospheric pressure in the gas pumping pipeline is negative pressure state; The atmospheric pressure value is about 40KPa-50KPa, and the ponding in the gas pumping pipeline generally can not be full of whole gas pumping pipeline, thus with the water inlet pipe of gas pumping pipeline connection in can not be full of ponding yet; What fill on the top of water inlet pipe also is gas, and the atmospheric pressure in the water inlet pipe equates with the atmospheric pressure in the gas pumping pipeline.
The water storage assembly has a variety of implementations, such as standpipe, storage tank or aqua storage tank etc.Being provided with of water inlet pipe highly is lower than being provided with highly of gas pumping pipeline, is for the ponding in the gas pumping pipeline can be flow in the water storage cavity of water storage assembly under action of gravity smoothly.Being provided with of water inlet pipe highly is higher than being provided with highly of outlet pipe, is in order to discharge the ponding in the water storage cavity smoothly.The extreme lower position of ponding is equal to or higher than the height at water inlet pipe place in the water storage assembly.
Referring to Fig. 1, the effect of discharging valve 4 is just to open or close outlet pipe 3 according to the water level in the water storage cavity 1.The action of discharging valve 4 can be according to the water level height autokinesis that detects, and also can be that the utility model does not limit this by the controller triggering in the external world.Referring to Fig. 1, the action of discharging valve 4 drives through lever 5 and buoyant spheres 6 in the present embodiment, and particularly, lever 5 is arranged on the bottom of water storage cavity 1, and the two ends of lever 5 are respectively arranged with discharging valve 4 and buoyant spheres 6; When water level was high, buoyant spheres 6 rose, and discharging valve 4 descends to leave outlet pipe 3, and can discharge water this moment; When water level was low, buoyant spheres 6 descended, and discharging valve 4 rises to block outlet pipe 3, and stop to discharge water this moment.
The automatic tailrace that technique scheme provides; Through being set, the water storage assembly collects the ponding in the gas pumping pipeline; Comprise the operation that realizes discharging water of the assembly that discharges water of discharging valve through setting; The action that discharges water of discharging valve is just to be decided by the water level in the water storage cavity, compares with the manually mode of discharging water of the prior art, and the automatic tailrace that technique scheme provides can just be realized discharging water automatically according to the water level in the water storage cavity; In addition,, can not cause the gas in the gas pumping pipeline to reveal, use safe, good reliability because discharging valve is just to open or close outlet pipe according to water level.
Referring to Fig. 2; The utility model embodiment two provides a kind of automatic tailrace; Comprise the water storage assembly and discharge water assembly, the water storage assembly has water storage cavity 1, and sealing is communicated with water inlet pipe 2 and outlet pipe 3 on the said water storage cavity 1; Being provided with of said water inlet pipe 2 highly is higher than being provided with highly of said outlet pipe 3, and said water inlet pipe 2 is used for and the gas pumping pipeline connection; Referring to Fig. 3, Fig. 3 is the discharging valve at A position among Fig. 2 and the annexation sketch map between the outlet pipe, and the assembly that discharges water comprises discharging valve 4, and discharging valve 4 is arranged on the outlet pipe 3, is used for just opening or closing outlet pipe 3 according to the water level in the water storage cavity 1.Particularly, discharging valve 4 is tabular, and the top of discharging valve 4 is hinged on outlet pipe 3 inwalls through intermediate member, for guaranteeing sealing effectiveness, is provided with rubber ring 17 between discharging valve 4 and the outlet pipe 3.The difference of present embodiment and embodiment one is that the implementation that discharging valve 4 opens or closes outlet pipe 3 is different.
Introduce the preferred implementation of water storage assembly below, the water storage assembly comprises storage tank 7 and tank lid 8; Storage tank 7 uncovered settings, storage tank 7 has the cavity as water storage cavity 1; Offer water inlet that is communicated with water inlet pipe 2 and the delivery port that is communicated with outlet pipe 3 on the storage tank 7; Tank lid 8 seal covers are on storage tank 7 uncovered.The water storage assembly of said structure, storage tank 7 is split type with tank lid 8, is convenient to make processing.
Observe water level and service behavior in the storage tank 7 for the ease of the maintainer, and cleaning for convenience detach, further, tank lid 8 is transparent, the material of tank lid 8 is an organic glass here.
Further, also offer air inlet 9 on the storage tank 7, the assembly that discharges water also comprises the two-position three-way valve 10 that is positioned at water storage cavity 1 inside; Three ports of two-position three-way valve 10 connect water storage cavity 1, water inlet pipe 2 and air inlet 9 respectively, and between water inlet pipe 2 and air inlet 9, switch, and are used for through water inlet pipe 2 conducting water storage cavities 1 with the gas pumping pipeline or through the air inlet 9 conducting water storage cavities 1 and the external world; Discharging valve 4 is a pneumatic control valve, and discharging valve 4 opens outlet pipe 3 when the pressure atmospheric side pressure of water storage cavity side, and closes outlet pipe 3 during less than atmospheric side pressure at the pressure of water storage cavity side.
Atmospheric pressure in the water storage cavity 1 has two values, one be with the gas pumping pipeline in atmospheric pressure consistent, be the negative pressure of 40KPa-50KPa; Another is consistent with the atmospheric pressure in the external world, i.e. standard atmospheric pressure.The atmospheric pressure of discharging valve 4 both sides, one with water storage cavity 1 in atmospheric pressure consistent, another atmospheric pressure with the external world is consistent; So when the atmospheric pressure in water storage cavity 1 was consistent with extraneous atmospheric pressure, the atmospheric pressure of discharging valve 4 both sides was consistent; Under the effect of the hydraulic pressure in water storage cavity 1, discharging valve 4 is opened outlet pipe 3, carries out drain operation; With water storage cavity 1 and the conducting of gas pumping pipeline, the atmospheric pressure in the water storage cavity 1 becomes negative pressure until two-position three-way valve 10, and negative pressure has bigger suction to discharging valve 4; Discharging valve 4 cuts out outlet pipe 3, stops to discharge water.
Referring to Fig. 4 and Fig. 5, introduce the preferred implementation of two-position three-way valve 10 below, two-position three-way valve 10 comprises valve body 101, valve core rod 102 and O-ring seal 103; Valve body 101 is fixed on the tank lid 8, vertically offers valve pocket 104 in the valve body 101; Also offer first opening 105, second opening 106 and the 3rd opening 107 that are communicated with valve pocket 104 on the valve body 101; First opening 105, second opening 106 and the 3rd opening 107 are offered from bottom to top in order; First opening 105 is communicated with water inlet pipe 2, and second opening 106 is communicated with water storage cavity 1, and the 3rd opening 107 is in communication with the outside through air inlet 9; Valve core rod 102 1 ends are slidingly installed in the valve pocket 104, and the other end stretches out valve pocket 104 and is contained in the water storage cavity 1, and valve core rod 102 goes up and down along with the up-down of the water level in the water storage cavity 1; O-ring seal 103 quantity are two; Fixed interval is under the state of primary importance at the end two-position three-way valve 10 that valve core rod 102 stretches into valve pocket; Two O-ring seals 103 are positioned at the both sides of first opening 105 and second opening 106, second opening 106 is communicated with first opening 105 and separates with the 3rd opening 107; Two-position three-way valve 10 is in the state of the second place, and two O-ring seals 103 are positioned at the both sides of second opening 106 and the 3rd opening 107, second opening 106 is communicated with the 3rd opening 107 and separates with first opening 105.
Referring to the four-headed arrow line among Fig. 4; What Fig. 4 illustrated is; The situation of first opening 105 and 106 conductings of second opening; Two-position three-way valve 10 is in primary importance, and first opening 105 and second opening 106 are communicated with conducting water storage cavity 1 and gas pumping pipeline, this moment above O-ring seal 103 block the path between second opening 106 and the 3rd opening 107; Referring to the four-headed arrow line among Fig. 5; What Fig. 5 illustrated is; The situation of second opening 106 and 107 conductings of the 3rd opening; Two-position three-way valve 10 is in the second place, and second opening 106 and the 3rd opening 107 are communicated with the conducting water storage cavity 1 and external world, at this moment below O-ring seal 103 block the path between first opening 105 and second opening 106.The material of O-ring seal 103 can be rubber.
The two-position three-way valve of above-mentioned implementation is particularly useful for the draining of gas pumping pipeline, and the overall structure compact.
For the ease of the up-down of control valve core bar 102, preferably, the assembly that discharges water also comprises ball float 11, and ball float 11 is fixed on the other end of valve core rod 102, and ball float 11 drives the up-down of valve core rod 102 under the buoyancy of water effect in water storage cavity 1.Ball float 11 can be hollow metal or rubber spherical shell.
In the practical application, for the ease of the position of control ball float 11 on valve core rod 102, the assembly that discharges water also comprises first stop nut 12 and second stop nut 13; First stop nut 12 is fixed on the other end of valve core rod 102 and is positioned at the top of ball float 11; Second stop nut 13 is fixed on the other end of valve core rod 102 and is positioned at the below of ball float 11.
Water retention capacity in determining positions the has been set storage tank 7 of first stop nut 12 and second stop nut 13; Ball float 11 is arranged between first stop nut 12 and second stop nut 13; When ball float 11 when first stop nut 12 is provided with, the water retention capacity in the storage tank 7 is maximum; When ball float 11 when second stop nut 13 is provided with, the water retention capacity in the storage tank 7 is minimum, first stop nut 12 and second position of stop nut 13 on valve core rod 102 need be provided with according to the actual requirements.
In the practical application, when two-position three-way valve 10 is in the second place, the automatically tailrace operation that discharges water; Decline along with water level; Two-position three-way valve 10 can return to primary importance rapidly, discharges water in order to have guaranteed time enough, need make two-position three-way valve 10 can maintain the second place momently; So preferably, the assembly that discharges water also comprises iron pan 14 and magnet 15; Iron pan 14 is fixed on the valve core rod 102, and between first stop nut 12 and ball float 11; Magnet 15 is fixed on the below of two-position three-way valve 10, so that when two-position three-way valve 10 is in the second place, adsorb iron pan 14.When two-position three-way valve 10 is in the second place; Because the magneticaction of 15 pairs of iron pans 14 of magnet, the total upwards active force that makes valve core rod 102 receive can increase, and the buoyancy that can of short duration compensation ball float 11 receives reduces; Thereby make two-position three-way valve 10 to keep a bit of time in the second place; Such as 5-10 second, this short time, can increase the each water yield of discharging of automatic tailrace greatly.
Excessive in order to prevent the magnetic force between iron pan 14 and the magnet 15, the said assembly that discharges water also comprises magnetic conductor 16, is fixed on the below of said magnet 15.The material of magnetic conductor 16 is specially rubber here.
The automatic tailrace that technique scheme provides; Through two-position three-way valve is set in storage tank; Realize sensitivity and effectively the ponding in the gas pumping pipeline in time discharged that it is untimely, not automatically and the problem of maintenance difficult to have solved in the prior art ponding discharging, has realized the discharging automatically in real time of gas pumping pipeline ponding in the gas pumping system; Improve the efficient that ponding is discharged greatly, and saved a large amount of costs and manpower; The automatic tailrace that technique scheme provides is simple in structure, and operation, easy maintenance are particularly suitable for the draining of coal mine gas extraction system, also can be applied to other drainage system.
The utility model embodiment also provides a kind of gas pumping system, comprises the gas pumping pipeline, wherein, is connected with the described automatic tailrace of the utility model any embodiment on the said gas pumping pipeline.
Adopted the gas pumping system of above-mentioned automatic tailrace, can in time discharge the ponding in the gas pumping pipeline, and easy and simple to handle, the reliability that equipment uses is high, the high efficiency of draining and saved lot of manpower and material resources.
What should explain at last is: above each embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to aforementioned each 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, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (10)
1. an automatic tailrace is characterized in that, comprising:
The water storage assembly has water storage cavity, and sealing is communicated with water inlet pipe and outlet pipe on the said water storage cavity, and being provided with of said water inlet pipe highly is higher than being provided with highly of said outlet pipe, and said water inlet pipe is used for and the gas pumping pipeline connection;
The assembly that discharges water comprises discharging valve, and said discharging valve is arranged in the path of said outlet pipe, is used for just opening or closing said outlet pipe according to the water level in the said water storage cavity.
2. automatic tailrace according to claim 1 is characterized in that, said water storage assembly comprises:
Storage tank, uncovered setting, said storage tank has the cavity as said water storage cavity; Offer water inlet that is communicated with said water inlet pipe and the delivery port that is communicated with said outlet pipe on the said storage tank;
Tank lid, seal cover is on said storage tank uncovered.
3. automatic tailrace according to claim 2 is characterized in that:
Also offer air inlet on the said storage tank, the said assembly that discharges water also comprises the two-position three-way valve that is positioned at said water storage cavity inside;
Three openings of said two-position three-way valve link to each other with water storage cavity, air inlet and water inlet pipe respectively; And between said air inlet and water inlet pipe, switch, be used for through the said water storage cavity of said water inlet pipe conducting and said gas pumping pipeline or through the said water storage cavity of said air inlet conducting and the external world;
Said discharging valve is a pneumatic control valve, and said discharging valve is opened said outlet pipe when the pressure of water storage cavity side equals atmospheric side pressure, and closes said outlet pipe during less than atmospheric side pressure at the pressure of water storage cavity side.
4. automatic tailrace according to claim 3 is characterized in that, said two-position three-way valve comprises:
Valve body is fixed on the said tank lid, vertically offers valve pocket in the said valve body; Also offer first opening, second opening and the 3rd opening that are communicated with said valve pocket on the said valve body; Said first opening, second opening and the 3rd opening are offered from bottom to top in order; Said first opening is communicated with said water inlet pipe, and said second opening is communicated with said water storage cavity, and said the 3rd opening is in communication with the outside through air inlet;
Valve core rod, an end are slidingly installed in the said valve pocket, and the other end stretches out said valve pocket and is contained in the said water storage cavity, and said valve core rod goes up and down along with the up-down of the water level in the said water storage cavity;
O-ring seal; Quantity is two; Fixed interval stretches into an end of said valve pocket at said valve core rod; Said two-position three-way valve is under the state of primary importance, and two O-ring seals are positioned at the both sides of said first opening and second opening, to separate with second opening and first open communication and with the 3rd opening; Said two-position three-way valve is in the state of the second place, and two O-ring seals are positioned at the both sides of said second opening and the 3rd opening, to separate with second opening and the 3rd open communication and with first opening.
5. automatic tailrace according to claim 2 is characterized in that:
Said tank lid is transparent.
6. automatic tailrace according to claim 4 is characterized in that, the said assembly that discharges water also comprises:
Ball float is fixed on the other end of said valve core rod, and said ball float drives the up-down of said valve core rod under the buoyancy of water effect in said water storage cavity.
7. automatic tailrace according to claim 6 is characterized in that, the said assembly that discharges water also comprises:
First stop nut is fixed on the other end of said valve core rod and is positioned at the top of said ball float;
Second stop nut is fixed on the other end of said valve core rod and is positioned at the below of said ball float.
8. automatic tailrace according to claim 6 is characterized in that, the said assembly that discharges water also comprises:
Iron pan, said iron pan is fixed on the said valve core rod, and between said first stop nut and said ball float;
Magnet is fixed on the below of said two-position three-way valve, so that when said two-position three-way valve is in the second place, adsorb said iron pan.
9. automatic tailrace according to claim 8 is characterized in that, the said assembly that discharges water also comprises:
Magnetic conductor is fixed on the below of said magnet.
10. a gas pumping system comprises the gas pumping pipeline, it is characterized in that, is connected with the arbitrary described automatic tailrace of claim 1-9 on the said gas pumping pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220144795 CN202560317U (en) | 2012-04-09 | 2012-04-09 | Automatic water discharging device and gas extraction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220144795 CN202560317U (en) | 2012-04-09 | 2012-04-09 | Automatic water discharging device and gas extraction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560317U true CN202560317U (en) | 2012-11-28 |
Family
ID=47209981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220144795 Withdrawn - After Issue CN202560317U (en) | 2012-04-09 | 2012-04-09 | Automatic water discharging device and gas extraction system |
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| Country | Link |
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| CN (1) | CN202560317U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808651A (en) * | 2012-08-20 | 2012-12-05 | 淮南矿业(集团)有限责任公司 | Automatic draining device of gas extraction system |
| CN103277568A (en) * | 2013-06-06 | 2013-09-04 | 朱敦文 | Automatic water replenishment downstream water closer |
| CN103362549A (en) * | 2012-04-09 | 2013-10-23 | 淮南矿业(集团)有限责任公司 | Automatic water draining device and gas extraction system |
| CN103573288A (en) * | 2013-11-14 | 2014-02-12 | 淮北创奇设备有限公司 | Pneumatic negative pressure drainage device |
| CN104234700A (en) * | 2014-08-22 | 2014-12-24 | 唐卫东 | Anti-water-interference gas pressure determining device |
| CN104455605A (en) * | 2014-12-02 | 2015-03-25 | 平安开诚智能安全装备有限责任公司 | Water discharge valve and gas extraction pipeline |
| CN109505651A (en) * | 2018-12-27 | 2019-03-22 | 重庆工程职业技术学院 | A kind of full-automatic positive/negative-pressure tailrace of monitor-type |
-
2012
- 2012-04-09 CN CN 201220144795 patent/CN202560317U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362549A (en) * | 2012-04-09 | 2013-10-23 | 淮南矿业(集团)有限责任公司 | Automatic water draining device and gas extraction system |
| CN103362549B (en) * | 2012-04-09 | 2016-02-03 | 淮南矿业(集团)有限责任公司 | Automatic water drainage device and gas drainage system |
| CN102808651A (en) * | 2012-08-20 | 2012-12-05 | 淮南矿业(集团)有限责任公司 | Automatic draining device of gas extraction system |
| CN102808651B (en) * | 2012-08-20 | 2015-02-04 | 淮南矿业(集团)有限责任公司 | Automatic draining device of gas extraction system |
| CN103277568A (en) * | 2013-06-06 | 2013-09-04 | 朱敦文 | Automatic water replenishment downstream water closer |
| CN103573288A (en) * | 2013-11-14 | 2014-02-12 | 淮北创奇设备有限公司 | Pneumatic negative pressure drainage device |
| CN103573288B (en) * | 2013-11-14 | 2015-11-18 | 淮北创奇设备有限公司 | A kind of pneumatic negative pressure drainage device |
| CN104234700A (en) * | 2014-08-22 | 2014-12-24 | 唐卫东 | Anti-water-interference gas pressure determining device |
| CN104455605A (en) * | 2014-12-02 | 2015-03-25 | 平安开诚智能安全装备有限责任公司 | Water discharge valve and gas extraction pipeline |
| CN109505651A (en) * | 2018-12-27 | 2019-03-22 | 重庆工程职业技术学院 | A kind of full-automatic positive/negative-pressure tailrace of monitor-type |
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