CN200999954Y - Negative-pressure automatic drainage device - Google Patents

Negative-pressure automatic drainage device Download PDF

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Publication number
CN200999954Y
CN200999954Y CNU2007201234416U CN200720123441U CN200999954Y CN 200999954 Y CN200999954 Y CN 200999954Y CN U2007201234416 U CNU2007201234416 U CN U2007201234416U CN 200720123441 U CN200720123441 U CN 200720123441U CN 200999954 Y CN200999954 Y CN 200999954Y
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CN
China
Prior art keywords
valve
negative
negative pressure
pressure
control valve
Prior art date
Application number
CNU2007201234416U
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Chinese (zh)
Inventor
林府进
孙东玲
龙伍见
董钢锋
梁运培
唐勇
Original Assignee
煤炭科学研究总院重庆分院
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Application filed by 煤炭科学研究总院重庆分院 filed Critical 煤炭科学研究总院重庆分院
Priority to CNU2007201234416U priority Critical patent/CN200999954Y/en
Application granted granted Critical
Publication of CN200999954Y publication Critical patent/CN200999954Y/en

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Abstract

The utility model relates to a negative pressure automatic water draining device. The utility model comprises a water accumulating bucket, a one-way water inlet valve, and a one-way water draining valve. The utility model is characterized in that a controlling valve is connected at the upper part of the water accumulating bucket, and the positive pressure balancing cavity of the controlling valve is connected with the atmosphere outside the water accumulating bucket through a positive pressure pipe; the negative pressure cavity of the controlling valve is connected with the first end of a three-way connector through a negative pressure pipe, the second end of the three-way connector is connected with the water inlet end of the one-way water inlet valve, and the third end of the three-way valve is connected with the negative pressure opening arranged on the wall of the water accumulating bucket; a float is hanged at the lower end of the valve core of the controlling valve. The utility model has the following advantages: the utility model is not easy to be affected by fortuitous events, and the control becomes more accurate and reliable; the utility model can be easily connected with the gas pipeline in coal mines or other negative gas pipelines, the accumulated water in the pipeline can be smoothly drained, the utility model is suitable for various conditions, and the utility model is not affected by the negative pressure size in the pipeline; the installment and maintenance are simple and convenient.

Description

The automatic tailrace of a kind of negative pressure

Technical field

The utility model relates to the colliery and draws out methane in the pipeline or the automatic discharge device of ponding in other negative-pressure gas pipeline, is specifically related to the automatic tailrace of a kind of negative pressure.

Background technique

At present, the colliery draws out methane, and the tapping equipment of ponding is the automatic tailrace of magnetic type negative pressure mostly in the pipeline.This tailrace comprises ponding bucket, inlet valve, discharging valve, vent valve, float, pallet, magnet and negative-pressure balancing pipe, its working principle is to utilize the buoyancy of float to make pallet upwards back down vent valve, thereby discharging valve is discharged water, the magnet adhesive of magnet on the pallet and vent valve, when vent valve was opened, pallet was blocked the negative-pressure balancing pipe; Along with the water in the ponding bucket discharges gradually, float also descends gradually thereupon and drives pallet and moves down, and vent valve is closed, and the negative-pressure balancing pipe is opened, and the ponding in the pipeline flows into the ponding bucket automatically from inlet valve under the effect of negative-pressure balancing; So go round and begin again, the ponding in the pipeline is discharged.The deficiency that this tailrace exists is: the magnet on the pallet and the magnet of vent valve adsorb the iron filings that pipeline rust peels off easily, and pallet is risen less than the position of regulation, and the negative-pressure balancing pipe can not be closed, and reliability is relatively poor; Negative pressure is excessive or too smallly all the regular event of tailrace is also had bigger influence in the releasing pipe; Inlet valve is connected with the extraction pipeline respectively with the negative-pressure balancing pipe, and installation workload is big, the pipe fitting expense height that needs.

Summary of the invention

The purpose of this utility model provides the automatic tailrace of a kind of negative pressure, its adaptability is strong, control is accurate, reliable performance, the influence of vacuum magnitude in not managed is installed and is kept easyly, is particularly suitable for the colliery and draws out methane in the pipeline or the discharging of ponding in other negative-pressure gas pipeline.

The automatic tailrace of a kind of negative pressure described in the utility model, comprise the ponding bucket, be located at ponding bucket top unidirectional inlet valve, be located at the water check valve of ponding bucket bottom, it is characterized in that: the control valve that has been located by connecting of the top in the ponding bucket, the barotropic equilibrium chamber of control valve communicates by the outer atmosphere of positive pressure tube and ponding bucket; The negative-pressure balancing chamber of control valve is connected with first end of tee union by the negative pressure pipe, and second end of tee union is connected with the feed-water end of unidirectional inlet valve, and the 3rd end of tee union is connected with negative pressure mouth on being located at long-pending bucket wall; The lower end of control valve spool is hung with a float.

Control valve is set in order to the pressure in the ponding bucket is regulated, is not easy to be subjected to the influence of fortuitous event, make precise control reliable.Negative pressure mouth UNICOM on negative-pressure balancing chamber and the long-pending bucket wall can be easily and negative-pressure gas pipeline UNICOM, and the ponding in the pipeline is discharged smoothly, is applicable to various situation.

The automatic tailrace of described a kind of negative pressure, its control valve comprises valve seat, valve body, valve gap, spool; The upper end of spool is connected with force transmitting board, and the lower end of spool is passed the last suction disc, magnet ring, the following suction disc that are located in the valve body and is connected with float with the valve gap that is connected valve body lower end and by line;

The valve seat of control valve is provided with a barotropic equilibrium chamber, vent on the barotropic equilibrium chamber communicates by the outer atmosphere of positive pressure tube and ponding bucket, be provided with positive tamponade in the intake duct in barotropic equilibrium chamber, being connected the positive seal spare that malleation holds beyond the Great Wall cooperates with the inwall in barotropic equilibrium chamber, the lower end of positive tamponade is connected with force transmitting board, and the upper end that is located at malleation first counterbalance spring beyond the Great Wall contacted with the following of force transmitting board; The effect that first counterbalance spring is set is the gap that the compensation malleation moves down beyond the Great Wall, makes closing and opening accurately and reliably of barotropic equilibrium chamber.

Also be provided with a negative-pressure balancing chamber on the valve seat of control valve, negative pressure hole on the negative-pressure balancing chamber is connected with first end of tee union by the negative pressure pipe, be provided with the negative pressure plug in the negative-pressure balancing chamber, being connected the negative Sealing of pressure that negative pressure holds beyond the Great Wall cooperates with the inwall in negative-pressure balancing chamber, the lower end of negative pressure plug is connected with force transmitting board, and the lower end that is located at negative pressure second counterbalance spring beyond the Great Wall contacts with the top of force transmitting board.The effect that second counterbalance spring is set is the gap that the compensation negative pressure moves down beyond the Great Wall, makes closing and opening accurately and reliably of negative-pressure balancing chamber.

The automatic tailrace of described a kind of negative pressure, its unidirectional inlet valve is connected with filter by union.The effect that filter is set is to enter in the ponding bucket in order to reduce the slag bits.

The utility model is compared with prior art and is had the following advantages: owing to be provided with independently control valve, be not easy to be subjected to the influence of fortuitous event, make precise control reliable; Negative pressure mouth UNICOM on negative-pressure balancing chamber and the long-pending bucket wall can be easily and the colliery pipeline UNICOM that draws out methane, and the ponding in the pipeline is discharged smoothly, is applicable to various situation, not managed in the influence of vacuum magnitude; Installation is kept easy, is particularly suitable for the draw out methane discharging of ponding in the pipeline of colliery.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of control valve.

Embodiment

Referring to Fig. 2, the control valve 4 of the automatic tailrace of a kind of negative pressure described in the utility model, comprise valve body 4-2, be connected valve body upper end valve seat 4-1, be located at the spool 4-4 in the valve body; The upper end of spool is connected with force transmitting board 4-5, and the lower end of spool is passed last suction disc 4-6, the magnet ring 4-7 that is located in the valve body, following suction disc 4-8 and is connected with float 9 with the valve gap 4-3 that is connected valve body lower end and by line;

The valve seat of control valve is provided with a barotropic equilibrium chamber 4-10, vent 4-11 on the barotropic equilibrium chamber communicates by the outer atmosphere of positive pressure tube 5 and ponding bucket, be provided with positive tamponade 4-12 in the intake duct in barotropic equilibrium chamber, being connected the positive seal spare 4-13 that malleation holds beyond the Great Wall cooperates with the inwall in barotropic equilibrium chamber, the lower end of positive tamponade is connected with force transmitting board, and the upper end that is located at the malleation first counterbalance spring 4-14 beyond the Great Wall contacted with the following of force transmitting board;

Also be provided with a negative-pressure balancing chamber 4-15 on the valve seat of control valve, negative pressure hole 4-16 on the negative-pressure balancing chamber is connected with first end of tee union 7 by negative pressure pipe 6, be provided with negative pressure plug 4-17 in the negative-pressure balancing chamber, being connected the negative Sealing 4-18 of pressure that negative pressure holds beyond the Great Wall cooperates with the inwall in negative-pressure balancing chamber, the lower end of negative pressure plug is connected with force transmitting board, and the lower end that is located at the negative pressure second counterbalance spring 4-19 beyond the Great Wall contacts with the top of force transmitting board.

Referring to Fig. 1, unidirectional inlet valve 2 is installed in top in the ponding bucket 1, water check valve 3 is installed in the bottom in the ponding bucket, and control valve 4 is located by connecting on the top in the ponding bucket, and the barotropic equilibrium chamber of control valve communicates with ponding bucket atmosphere outward by positive pressure tube 5; The negative-pressure balancing chamber of control valve is connected with first end of tee union 7 by negative pressure pipe 6, second end of tee union is connected with the feed-water end of unidirectional inlet valve 2, the 3rd end of tee union be located at long-pending bucket wall on negative pressure mouth 8 be connected, the time spent can not block the negative pressure mouth; Float 9 is placed bottom in the ponding bucket and the lower end of hanging the control valve spool with line; Unidirectional inlet valve 2 is connected with filter 11 by union 10; Colliery pipeline or other negative-pressure gas pipeline jointing by flanged dish that draws out methane is connected with filter 11, can utilize this tailrace to get rid of ducted ponding.

Realize in the following manner: when not having water in the water tank 1, the float 9 that hang control valve 4 spool lower ends is in extreme lower position under the effect of gravity, float 9 by with the line of the valve core chamber of control valve with spool down suction disc 4-8 end move, magnet ring 4-7 on the spool and following suction disc 4-8 adhesive, positive tamponade 4-12 in the barotropic equilibrium chamber 4-10 of control valve moves downward under the effect of force transmitting board, the positive seal spare 4-13 that malleation is held beyond the Great Wall and the inwall closure in barotropic equilibrium chamber, the atmospheric isolation that barotropic equilibrium chamber and ponding bucket are outer; Simultaneously, negative Sealing 4-18 of the pressure that negative pressure is held beyond the Great Wall and negative-pressure balancing chamber 4-15 open, negative pressure hole 4-16 communicates with water tank 1, at this moment in the ponding bucket with extraction negative pressure pipe internal pressure balance, the water check valve 3 of ponding bucket bottom is closed under the effect of negative pressure, catchmenting in the extraction negative pressure pipe enters in the ponding bucket by filter 11, union 10, unidirectional inlet valve 2 under the effect of gravity, finishes the process of catchmenting.

In the process of catchmenting, liquid level water level in the ponding bucket rises, float 9 in the ponding bucket also rises under buoyancy function thereupon, float contacts with the spool of control valve when reaching a certain height, float no longer rises, water level in the ponding bucket also will continue to rise, buoyancy that float produces increases thereupon, when buoyancy reaches certain power, up suction disc 4-6 end is mobile with the control valve spool under buoyancy function for float, spool upper magnetic ring 4-7 and last suction disc 4-6 adhesive, positive tamponade 4-12 in the barotropic equilibrium chamber 4-10 of control valve moves upward under the effect of force transmitting board, the positive seal spare 4-13 that malleation is held beyond the Great Wall and the end wall in barotropic equilibrium chamber are opened, and the barotropic equilibrium chamber communicates with ponding bucket atmosphere outward; Simultaneously, the closure of negative Sealing 4-18 of the pressure that negative pressure is held beyond the Great Wall and negative-pressure balancing chamber 4-15, negative pressure hole 4-16 and water tank 1 are isolated, the unidirectional inlet valve 3 on ponding bucket top is closed under the effect of gas pipeline negative pressure, at this moment in the ponding bucket with the outer atmospheric pressure balance of bucket, catchmenting in the ponding bucket emitted outside the ponding bucket by water check valve 3 under the effect of gravity, finishes the process of discharging water.

Along with emitting of water, the float that hang the spool lower end of control valve arrives extreme lower position again under the effect of gravity, and tailrace enters the process of catchmenting again, and so moving in circles reaches the purpose that discharges water automatically.

Claims (3)

1, the automatic tailrace of a kind of negative pressure, comprise ponding bucket (1), be located at ponding bucket top unidirectional inlet valve (2), be located at the water check valve (3) of ponding bucket bottom, it is characterized in that: the control valve (4) that has been located by connecting of the top in ponding bucket (1), the barotropic equilibrium chamber of control valve communicates by the outer atmosphere of positive pressure tube (5) and ponding bucket; The negative-pressure balancing chamber of control valve is connected by first end of negative pressure pipe (6) with tee union (7), and second end of tee union is connected with the feed-water end of unidirectional inlet valve (2), the 3rd end of tee union be located at long-pending bucket wall on negative pressure mouth (8) be connected; The lower end of control valve spool is hung with a float (9).
2, the automatic tailrace of a kind of negative pressure according to claim 1 is characterized in that: control valve (4) comprises valve seat (4-1), valve body (4-2), valve gap (4-3), spool (4-4); The upper end of spool is connected with force transmitting board (4-5), and the lower end of spool is passed the last suction disc (4-6), magnet ring (4-7), the following suction disc (4-8) that are located in the valve body and is connected with float (9) with the valve gap that is connected valve body lower end and by line; The valve seat of control valve is provided with a barotropic equilibrium chamber (4-10), vent on the barotropic equilibrium chamber (4-11) communicates by the outer atmosphere of positive pressure tube (5) and ponding bucket, be provided with positive tamponade (4-12) in the intake duct in barotropic equilibrium chamber, being connected the positive seal spare (4-13) that malleation holds beyond the Great Wall cooperates with the inwall in barotropic equilibrium chamber, the lower end of positive tamponade is connected with force transmitting board, and the upper end that is located at malleation first counterbalance spring (4-14) beyond the Great Wall contacted with the following of force transmitting board; Also be provided with a negative-pressure balancing chamber (4-15) on the valve seat of control valve, negative pressure hole on the negative-pressure balancing chamber (4-16) is connected by first end of negative pressure pipe (6) with tee union (7), be provided with negative pressure plug (4-17) in the negative-pressure balancing chamber, being connected the negative Sealing (4-18) of pressure that negative pressure holds beyond the Great Wall cooperates with the inwall in negative-pressure balancing chamber, the lower end of negative pressure plug is connected with force transmitting board, and the lower end that is located at negative pressure second counterbalance spring (4-19) beyond the Great Wall contacts with the top of force transmitting board.
3, the automatic tailrace of a kind of negative pressure according to claim 1 and 2 is characterized in that: unidirectional inlet valve (2) is connected with filter (11) by union (10).
CNU2007201234416U 2007-01-29 2007-01-29 Negative-pressure automatic drainage device CN200999954Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201234416U CN200999954Y (en) 2007-01-29 2007-01-29 Negative-pressure automatic drainage device

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Application Number Priority Date Filing Date Title
CNU2007201234416U CN200999954Y (en) 2007-01-29 2007-01-29 Negative-pressure automatic drainage device

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CN200999954Y true CN200999954Y (en) 2008-01-02

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101994907A (en) * 2009-08-19 2011-03-30 淮南矿业(集团)有限责任公司 Drainage system and method for gas pipeline
CN102537649A (en) * 2012-01-11 2012-07-04 河南理工大学 Automatic water discharge device free from pressure difference
CN102767393A (en) * 2012-07-16 2012-11-07 中国矿业大学 Negative pressure automatic water discharge device
CN104747898A (en) * 2015-03-09 2015-07-01 胡玮琳 Positive and negative pressure universal automatic water releasing device
CN105464697A (en) * 2016-01-04 2016-04-06 淮北矿业股份有限公司 Self-made automatic water discharge device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101994907A (en) * 2009-08-19 2011-03-30 淮南矿业(集团)有限责任公司 Drainage system and method for gas pipeline
CN101994907B (en) * 2009-08-19 2013-03-20 淮南矿业(集团)有限责任公司 Drainage system and method for gas pipeline
CN102537649A (en) * 2012-01-11 2012-07-04 河南理工大学 Automatic water discharge device free from pressure difference
CN102537649B (en) * 2012-01-11 2014-10-15 河南理工大学 Automatic water discharge device free from pressure difference
CN102767393A (en) * 2012-07-16 2012-11-07 中国矿业大学 Negative pressure automatic water discharge device
CN102767393B (en) * 2012-07-16 2014-10-29 中国矿业大学 Negative pressure automatic water discharge device
CN104747898A (en) * 2015-03-09 2015-07-01 胡玮琳 Positive and negative pressure universal automatic water releasing device
CN104747898B (en) * 2015-03-09 2018-07-17 胡玮琳 A kind of general automatic water drainage device of positive and negative pressure
CN105464697A (en) * 2016-01-04 2016-04-06 淮北矿业股份有限公司 Self-made automatic water discharge device

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: CHINA COAL TECHNOLOGY ENGINEERING GROUP CHONGQING

Free format text: FORMER NAME: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE

Owner name: COAL SCIENTIFIC RESEARCH INSTITUTE CHONGQING INSTI

Free format text: FORMER NAME: CHONGQING BRANCH, COAL SCIENCE RESEARCH GENERAL INST.

Owner name: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RE

Free format text: FORMER NAME: COAL SCIENTIFIC RESEARCH INSTITUTE CHONGQING INSTITUTE

CP01 Change in the name or title of a patent holder

Address after: 400037, No. three village, 55 bridge, Shapingba District, Chongqing

Patentee after: Coal Scientific Research Institute Chongqing Institute

Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing

Patentee before: Chongqing Branch, Coal Science Research General Inst.

Address after: 400037, No. three village, 55 bridge, Shapingba District, Chongqing

Patentee after: China Coal Science and Industry Group Chongqing Research Institute

Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing

Patentee before: Coal Scientific Research Institute Chongqing Institute

CP03 Change of name, title or address

Address after: 400039 Chongqing Jiulongpo Branch City Road No. 6

Patentee after: China Coal Technology Engineering Group Chongqing Research Institute

Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing

Patentee before: China Coal Science and Industry Group Chongqing Research Institute

CX01 Expiry of patent term

Granted publication date: 20080102