CN102767393B - Negative pressure automatic water discharge device - Google Patents

Negative pressure automatic water discharge device Download PDF

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Publication number
CN102767393B
CN102767393B CN201210244586.7A CN201210244586A CN102767393B CN 102767393 B CN102767393 B CN 102767393B CN 201210244586 A CN201210244586 A CN 201210244586A CN 102767393 B CN102767393 B CN 102767393B
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China
Prior art keywords
ponding
water
mud chamber
subsequent use
charge
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CN201210244586.7A
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CN102767393A (en
Inventor
沈刚
张磊
朱真才
汤裕
周公博
李伟
彭玉兴
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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Abstract

The invention discloses a negative pressure automatic water discharge device, suitable for discharging water accumulated in a gas drainage pipe of a coal mine. The device is mainly composed of a water accumulation barrel, a flotage conversion apparatus, a settlement chamber, a standby settlement chamber, an inlet water distribution system and a negative pressure distribution system. An accumulated water branch pipe joint in the inlet water distribution system is lower than a standby accumulated water branch pipe. In normal working, accumulated water in a pumping pipe directly enters an accumulated water branch pipe and the settlement chamber via a water collection header pipe. When there is too much accumulated water, water level in the water collection header pipe rises and accumulated water enters the standby accumulated water branch pipe and the standby settlement chamber, to realize doubling of water discharge capability. In repair or sediment discharging, a corresponding water discharge path is selected by opening/closing valves of the inlet water distribution system and the negative pressure distribution system, without affecting working of the whole system. The inventive water discharge device has advantages of simple structure, stable performance, reliable working, strong adaptability and wide practicability.

Description

A kind of negative pressure automatic drainage device
Technical field
The present invention relates to a kind of negative pressure automatic drainage device, be particularly useful for getting rid of the ponding in coal mine gas drainage pipe road.
Background technology
, there is following problem: fault is many in the negative pressure tailrace using at present, is mainly that the flow velocity of water is on the low side, and the graininess foreign material that carry in water and calcareous being easily bonded on valve seat or spool, make valve closing not tight; When fault or deslagging, tailrace quits work, and affects the running of whole system; Draining is discontinuous, has closed inlet valve when discharging water, causes extraction pipeline ponding in the process of discharging water; The speed that discharges water is slow, makes indivedual low-lying places ponding speed exceed the speed of discharging water, and causes pipeline blockage; System accommodation is narrow, and when negative pressure occurs significantly to change, automatic draining can not normally be worked.
Summary of the invention
Technical problem: the object of the invention is to overcome the deficiency in prior art, a kind of simple in structure, reliable operation, adaptable negative pressure automatic drainage device are provided.
Technical scheme: negative pressure automatic drainage device of the present invention, comprise ponding bucket, be located at the buoyancy conversion device in ponding bucket, the top reverse symmetry of ponding bucket is provided with mud chamber and mud chamber for subsequent use, the exit of mud chamber and mud chamber for subsequent use is respectively equipped with the water check valve of water inlet in vector product bucket, ponding bung top is provided with into water distribution system and negative pressure distribution system, the bottom of mud chamber and mud chamber for subsequent use is respectively equipped with the double slag notch that does observation panel, and the bottom of ponding bucket is provided with water check valve; Described buoyancy conversion device comprises base, be sleeved on base magnet on base, be fixed on litter on base, be sleeved on the float on litter, the bottom of float is provided with the float magnet corresponding with base magnet, the top of float is provided with the guiding pallet being connected through stay cord with it, guiding pallet is provided with pallet magnet and cone seal head, the top of cone seal head, be provided with the same axial location of litter the on-off valve matching with it, on-off valve is fixed on ponding bung; Described water inlet distribution system comprises water header, the ponding that is connected with water header is in charge of with ponding for subsequent use and is in charge of respectively, ponding for subsequent use is in charge of and is positioned at the top that ponding is in charge of, ponding for subsequent use is in charge of with mud chamber for subsequent use and is connected, ponding is in charge of with mud chamber and is connected, and ponding is in charge of with ponding for subsequent use and is in charge of and is respectively equipped with ponding and divides tube valve; Described negative pressure distribution system comprises that the negative-pressure balancing that negative-pressure balancing house steward, symmetry are located at negative-pressure balancing house steward both sides is in charge of, and negative-pressure balancing is in charge of and is provided with negative-pressure balancing pipe sub valve.
The bottom of described ponding bucket is provided with viewport, described mud chamber and the exit of mud chamber for subsequent use are respectively equipped with filter screen, described on-off valve comprises valve body, the upper end of valve body is provided with negative pressure interface, the bottom of valve body has annular groove, annular groove middle part is provided with location sealing conduit, location sealing conduit is coaxial with negative pressure interface, between location sealing conduit and negative pressure interface, be provided with the sealing cone adapting with cone seal head, valve body top, be provided with multiple air vents around negative pressure interface, on described location sealing catheter wall, symmetry has wedged seal mouth, in described annular groove, horizontal symmetrical is provided with guide cylinder, in guide cylinder, be provided with the arc sealing block matching with wedged seal mouth, the rear portion of arc sealing block is provided with spring, the front portion of arc sealing block is connected with voussoir through rigid posts.
Beneficial effect: negative pressure tailrace of the present invention, the ponding of water inlet in distribution system is in charge of interface position and is in charge of position lower than ponding for subsequent use, and in the time of normal work, extraction pipeline ponding directly enters by water header that ponding is in charge of, mud chamber; In the time that ponding is too much, water header middle water level rises, and enters that ponding for subsequent use is in charge of, mud chamber for subsequent use, can realize doubling of the ability that discharges water; Maintenance or when deslagging, can, by the intake valve of distribution system and negative pressure distribution system of switch, can select corresponding drainage path, does not affect the work of whole system.When ponding, negative-pressure balancing is in charge of and is conducting in mud chamber, ponding bucket, has ensured that tailrace air pressure inside equals extraction pipeline air pressure, has got rid of the fault that discharges water in the situations such as high negative pressure, negative pressure fluctuation are large.While discharging water, on-off valve has cut out the negative-pressure balancing pipeline passing in ponding bucket, and the atmosphere of conducting simultaneously, makes ponding bucket internal gas pressure higher than mud chamber, and water check valve is closed, and can realize and discharging water smoothly.After water check valve, water check valve are all positioned at filter screen, to prevent in water that graininess foreign material are bonded on valve seat or spool and cause fault multiple.Magnet is equipped with in float bottom, magnet attraction when water level is lower and on base, prevent that on the one hand float is with the water level fluctuation litter that rubs, make on the other hand float gather potential energy, in the time that reaching a certain height, water level floats with acceleration, promote to move on guiding pallet height, in conjunction with the gravitation between the magnet on magnet and on-off valve on guiding pallet, guarantee cone seal head can be opened arc sealing block close encapsulation wedge mouth.And after having discharged water, float moves down, the attraction of float bottom magnet and base magnet adds float self gravitation, by the stay cord between buoy upper and guiding pallet, pulls guiding pallet to move down, and makes on-off valve conducting negative-pressure balancing isolated atmosphere.Isolated water intaking valve, discharging valve contacts with particulate matter, has reduced fault; Ponding bucket can be opened, easy maintenance and replacement part; When maintenance or deslagging, tailrace can not quit work; While discharging water, ponding still can enter mud chamber, realizes continuous drainage; The pipeline automatic operation that discharges water for subsequent use when the water yield is larger, the speed of discharging water doubles; High negative pressure and the negative pressure large situation that fluctuates is had to good compliance.It is simple in structure, good stability, reliable operation, strong adaptability, has practicality widely.
Brief description of the drawings
Fig. 1 is main TV structure figure of the present invention;
Fig. 2 is left TV structure figure of the present invention;
Fig. 3 is plan structure figure of the present invention;
Fig. 4 is the A-A sectional structure chart of Fig. 1.
In figure: 1-water header, 2-ponding divides tube valve, 3-slag notch, 4-ponding bucket, 5-viewport, 6-guiding pallet magnet, 7-guiding pallet, 8-base magnet, 9-float magnet, 10-base, 11-litter, 12-float, 13-supporting leg, 14-water check valve, 15-stay cord, 16-mud chamber for subsequent use, 17-filter screen, 18-cone seal head, 19-magnet, 20-negative-pressure balancing is in charge of, 21-ponding bung, 22-ponding for subsequent use is in charge of, 23-negative-pressure balancing house steward, 24-on-off valve, 25-ponding is in charge of, 26-negative-pressure balancing divides tube valve, 27-water check valve, 28-mud chamber, 24-1-valve body, 24-2-spring, 24-3-arc sealing block, 24-4-rigid posts, 24-5-voussoir, 24-6-guide cylinder, 24-7-wedged seal mouth, 24-8-air vent, 24-9-negative pressure interface, 24-10-sealing cone, 24-11-location sealing conduit 24-11.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
As Figure 1-3, negative pressure automatic drainage device of the present invention is mainly made up of ponding bucket 4, buoyancy conversion device, mud chamber 28, mud chamber for subsequent use 16, water inlet distribution system and negative pressure distribution system; Mud chamber 28 and mud chamber for subsequent use 16 reverse symmetry are provided with the top of buoyancy conversion device, the entrance of mud chamber 28 and mud chamber for subsequent use 16 is respectively equipped with the water check valve 27 of vector product bucket 4 interior water inlets, and described mud chamber 28 and the exit of mud chamber for subsequent use 16 are respectively equipped with filter screen 17.Ponding bucket 4 tops are provided with into water distribution system and negative pressure distribution system, and the bottom of mud chamber 28 and mud chamber for subsequent use 16 is respectively equipped with the double slag notch 3 that does observation panel, and the bottom of ponding bucket 4 is provided with water check valve 14; Described buoyancy conversion device comprises base 10, be sleeved on base magnet 8 on base 10, be fixed on litter 11 on base 10, be sleeved on the float 12 on litter 11, the bottom of float 12 is provided with the float magnet 9 corresponding with base magnet 8, the guiding pallet 7 that the top of float 12 is connected through stay cord 15 with it, guiding pallet 7 is provided with pallet magnet 6 and cone seal head 18, the top of cone seal head 18 is provided with the on-off valve 24 matching with it, on-off valve 24 is fixed on ponding bung 21, ponding bung 21 through bolton on ponding bucket 4.Described water inlet distribution system comprise water header 1, respectively the ponding that is connected with water header 1 be in charge of 25 and ponding for subsequent use be in charge of 22, ponding for subsequent use is in charge of 22 and is positioned at ponding and is in charge of 25 top, ponding for subsequent use is in charge of 22 and is connected with mud chamber 16 for subsequent use, ponding is in charge of 25 and is connected with mud chamber 28, ponding be in charge of 25 and ponding for subsequent use be in charge of and on 22, be respectively equipped with ponding and divide tube valve 2; Described negative pressure distribution system comprises that the negative-pressure balancing that negative-pressure balancing house steward 23, symmetry are located at negative-pressure balancing house steward 23 both sides is in charge of 20, and negative-pressure balancing is in charge of 20 and is provided with negative-pressure balancing pipe sub valve 26.On-off valve 24 and negative-pressure balancing are in charge of 20 interface and are all arranged on ponding bung 21; Ponding be in charge of 25 and ponding for subsequent use be in charge of two negative-pressure balancings that two valves 2, negative-pressure balancings on 22 are in charge of on 20 and divide tube valve 26 often to open.Negative-pressure balancing house steward 23 is connected to the position that extraction pipeline can not flooded by ponding, water header 1 be connected to extraction pipeline the position of easy ponding to discharge in time ponding.
As shown in Figure 4, described on-off valve 24 comprises valve body 24-1, valve body 24-1 upper end is provided with the negative pressure interface 24-9 being connected with negative-pressure balancing house steward 23, the bottom of valve body 24-1 has annular groove, annular groove middle part is provided with through ponding bung 21 and enters the location sealing conduit 24-11 in ponding bucket 4, the location sealing conduit 24-11 entering in ponding bucket 4 is set with the magnet corresponding with pallet magnet 6 19 outward, location sealing conduit 24-11 is coaxial with negative pressure interface 24-9, the ladder position that location sealing conduit 24-11 and negative pressure interface 24-9 form processes sealing cone 24-10, be used for the cone match of cone seal head 18 with closed negative pressure equalizing line.Valve body 24-1 top, be respectively equipped with the multiple air vent 24-8 that are communicated with atmosphere around negative pressure interface 24-9, on described location sealing conduit 24-11 wall, symmetry has wedged seal mouth 24-7, in described annular groove, horizontal symmetrical is provided with guide cylinder 24-6, in guide cylinder 24-6, be provided with the arc sealing block 24-3 matching with wedged seal mouth 24-7, the rear portion of arc sealing block 24-3 is provided with spring 24-2, and the front portion of arc sealing block 24-3 is connected with voussoir 24-5 through rigid posts 24-4.Under the pressure-acting of spring 24-2, arc sealing block 24-3 moves in guide cylinder 24-6, and then clamping wedged seal mouth 24-7, isolated atmospheric pressure.
Operating principle and the course of work:
When ponding is less, ponding all enters by water header 1 that ponding is in charge of 25, mud chamber 28, starts at mud chamber's 28 internal water accumulations, because dividing tube valve 26, all opens negative-pressure balancing, cone seal head 18 is also not yet shut sealing cone 24-10, negative-pressure balancing be in charge of 20 and negative-pressure balancing house steward 23 can be conducting to respectively mud chamber 28, in mud chamber 16 for subsequent use and ponding bucket 4, make mud chamber 28, the air pressure inside of mud chamber 16 for subsequent use and ponding bucket 4 equals extraction pipeline air pressure, and water inlet distribution system is also being communicated with extraction pipeline, so mud chamber 28, the air pressure inside of mud chamber 16 for subsequent use and ponding bucket 4 and water inlet distribution system air pressure, extraction pipeline air pressure all equates, extraction pipeline ponding just can flow into water inlet distribution system under self gravitation effect like this, then enter mud chamber 28, by entering water check valve 27 after filter screen 17 filtering graininess impurity, mud chamber's 28 internal water accumulations reach after certain water level, and the spool of water check valve 27 is opened under ponding pressure-acting, and the ponding of filtering graininess impurity flows into ponding bucket 4.
Along with the water in water check valve 27 constantly flows into ponding bucket 4, water level in ponding bucket 4 rises, and due to the magnet 9 of float 12 bottoms be fixed on the adhesive of magnet 8 on base 10, float 12 can not float, prevent that float 12 is with the water level fluctuation litter 11 that rubs, after water level reach a certain height, the buoyancy that float 12 is subject to is greater than the attraction sum between self gravitation and magnet 8 and magnet 9, float 12 departs from the constraint of magnet 8 on base 10, float along litter 11 with increasing acceleration, in height pusher action-oriented pallet 7 high speeds of arrival guiding pallet 7, move, on in conjunction with guiding pallet 7, move to behind the position that approaches on-off valve 24, the increasing attraction of generation between magnet 6 on guiding pallet 7 and the magnet 19 on on-off valve 24, in conjunction with the buoyancy of float 12, can promote cone seal head 18 and back down fast voussoir 24-5, interlock rigid posts 24-4 pushes open and is originally oppressed the arc sealing block 24-3 in wedged seal mouth 24-7 by spring 24-2, atmosphere is by air vent 24-8 like this, wedged seal mouth 24-7, location sealing conduit 24-11 is conducting in ponding bucket 4, the taper surface of cone seal head 18 coordinates with sealing cone 24-10 simultaneously, completely cut off contacting of negative-pressure balancing house steward 23 and ponding bucket 4.Now, ponding bucket 4 internal gas pressures equal atmospheric pressure, and the air pressure of mud chamber 28, mud chamber for subsequent use 16 equals the negative pressure in negative-pressure balancing system and water inlet distribution system, this pressure reduction is closed two water check valves 27 in mud chamber 28, mud chamber for subsequent use 16, in the time that the ponding in ponding bucket 4 reaches higher level, under ponding Action of Gravity Field, water check valve 14 starts to discharge water.
Along with the carrying out of water check valve 14 drainage procedures, the interior water level of ponding bucket 4 declines, and float 12 moves down gradually, and magnet 6 on guiding pallet 7 still with on-off valve 24 on magnet 19 adhesives; When the interior water level of ponding bucket 4 is reduced to lower water level, attraction between magnet 8 on float 12 bottom magnet 9 and base 10 is added when float 12 self gravitations are greater than the buoyancy of float 12, magnet 8 quick pick-ups on float 12 bottom magnet 9 and base 10, at this moment the lucky full extension of stay cord 15 leading between pallet 7 and float 12 is opened, can add under the synergy of float 12 gravity in the attraction of magnet 9 and magnet 8, pull guiding pallet 7 to move down; Cone seal head 18 is along with guiding pallet 7 moves down, depart from and coordinate with sealing cone 24-10, arc sealing block 24-3 is also under spring 24-2 pressure-acting simultaneously, again shut wedged seal mouth 24-7, make ponding bucket 4 by negative pressure interface 24-9, location sealing conduit 24-11 conducting negative-pressure balancing house steward 23, completely cut off the conducting of ponding bucket 4 with atmosphere simultaneously.Like this, ponding bucket 4 internal gas pressures equal the air pressure in negative-pressure balancing system, water inlet distribution system again, the ponding of water inlet in distribution system can be in Action of Gravity Field down-flow water mud chamber 28, by water check valve 27 flows into ponding bucket 4 in after reaching certain water level in mud chamber 28.
In the time that ponding is too much, mud chamber 28 and the water check valve 27 connecting thereof are processed the speed of ponding lower than the speed of extraction pipeline ponding, and water header 1 middle water level rises.Because ponding speed is unable to catch up with by water check valve 27 drainage speeds on it by mud chamber 28, water level raises, cause water header 1 middle water level to rise, ponding also enters that ponding for subsequent use is in charge of 22, mud chamber for subsequent use 16 simultaneously, like this, another draining branch that the draining branch that ponding is in charge of 22, mud chamber 28 forms and ponding for subsequent use are in charge of 22, mud chamber for subsequent use 16 forms receives the ponding in water inlet distribution system simultaneously, accelerates drainage speed, because dividing tube valve 26, all opens negative-pressure balancing, cone seal head 18 is also not yet shut sealing cone 24-10, negative-pressure balancing be in charge of 20 and negative-pressure balancing house steward 23 can be conducting to respectively mud chamber 28, in mud chamber 16 for subsequent use and ponding bucket 4, make mud chamber 28, the air pressure inside of mud chamber 16 for subsequent use and ponding bucket 4 equals extraction pipeline air pressure, and water inlet distribution system is also being communicated with extraction pipeline, so mud chamber 28, the air pressure inside of mud chamber 16 for subsequent use and ponding bucket 4 and water inlet distribution system air pressure, extraction pipeline air pressure all equates, extraction pipeline ponding just can flow into water inlet distribution system under self gravitation effect like this, then enter mud chamber 28, mud chamber 16 for subsequent use, by mud chamber 28, after filter screen 17 filtering graininess impurity in mud chamber 16 for subsequent use, enter respectively mud chamber 28, water check valve 27 in mud chamber 16 for subsequent use, when any one inner ponding in mud chamber 28 and mud chamber for subsequent use 16 reaches certain water level, when the spool of connected water check valve 27 is opened under ponding pressure-acting, ponding wherein flow in ponding bucket 4 automatically.
Along with the interior water filling of two water check valves, 27 continuous vector product bucket 4 in mud chamber 28 and mud chamber for subsequent use 16, water level in ponding bucket 4 rises, and due to the magnet 9 of float 12 bottoms be fixed on the adhesive of magnet 8 on base 10, float 12 can not float, and has prevented that float 12 is with the water level fluctuation litter 11 that rubs, after water level reach a certain height, the buoyancy that float 12 is subject to is greater than the attraction sum between self gravitation and magnet 8 and magnet 9, float 12 departs from the constraint of magnet 8 on base 10, float along litter 11 with increasing acceleration, in height pusher action-oriented pallet 7 high speeds of arrival guiding pallet 7, move, on in conjunction with guiding pallet 7, move to behind the position that approaches on-off valve 24, the increasing attraction of generation between magnet 6 on guiding pallet 7 and the magnet 19 on on-off valve 24, in conjunction with the buoyancy of float 12, can promote cone seal head 18 and back down fast voussoir 24-5, interlock rigid posts 24-4 pushes open and is originally oppressed the arc sealing block 24-3 in wedged seal mouth 24-7 by spring 24-2, atmosphere is by air vent 24-8 like this, wedged seal mouth 24-7, location sealing conduit 24-11 is conducting in ponding bucket 4, the taper surface of cone seal head 18 coordinates with sealing cone 24-10 simultaneously, completely cut off contacting of negative-pressure balancing house steward 23 and ponding bucket 4.Now, ponding bucket 4 internal gas pressures equal atmospheric pressure, and the air pressure of mud chamber 28, mud chamber for subsequent use 16 equals the negative pressure in negative-pressure balancing system and water inlet distribution system, this pressure reduction is closed two water check valves 27 in mud chamber 28, mud chamber for subsequent use 16, in the time that the ponding in ponding bucket 4 reaches higher level, under ponding Action of Gravity Field, water check valve 14 starts to discharge water.
Along with the carrying out of water check valve 14 drainage procedures, the interior water level of ponding bucket 4 declines, and float 12 moves down gradually, and magnet 6 on guiding pallet 7 still with on-off valve 24 on magnet 19 adhesives; When the interior water level of ponding bucket 4 is reduced to lower water level, attraction between magnet 8 on float 12 bottom magnet 9 and base 10 is added when float 12 self gravitations are greater than the buoyancy of float 12, magnet 8 quick pick-ups on float 12 bottom magnet 9 and base 10, at this moment the lucky full extension of stay cord 15 leading between pallet 7 and float 12 is opened, can add under the synergy of float 12 gravity in the attraction of magnet 9 and magnet 8, pull guiding pallet 7 to move down; Cone seal head 18 is along with guiding pallet 7 moves down, depart from and coordinate with sealing cone 24-10, arc sealing block 24-3 is also under spring 24-2 pressure-acting simultaneously, again shut wedged seal mouth 24-7, make ponding bucket 4 by negative pressure interface 24-9, location sealing conduit 24-11 conducting negative-pressure balancing house steward 23, completely cut off the conducting of ponding bucket 4 with atmosphere simultaneously.Like this, ponding bucket 4 internal gas pressures equal the air pressure in negative-pressure balancing system, water inlet distribution system again, the ponding of water inlet in distribution system can be in Action of Gravity Field down-flow water mud chamber 28, by water check valve 27 flows into ponding bucket 4 in after reaching certain water level in mud chamber 28.
When in extraction pipeline when ponding Speed Reduction, tailrace can be processed whole ponding and be flowed in ponding bucket 4 by mud chamber 28, and the water level in water header 1 is reduced, and ponding no longer flows into that ponding for subsequent use is in charge of 22, in mud chamber for subsequent use 16.
Maintenance or deslagging should be chosen in water accumulating volume little time as far as possible, and needs in mud chamber 16 for subsequent use or mud chamber 28 are closed and are keeped in repair or deslagging.Suppose that mud chamber 28 needs repairing or deslagging, mud chamber 16 for subsequent use needs repairing or when deslagging, can be with reference to carrying out.
Closing ponding is in charge of the negative-pressure balancing that the ponding on 25 divides tube valve 2 and the negative-pressure balancing that is connected mud chamber 28 to be in charge of on 20 and divides tube valve 26; Open the slag notch 3 on mud chamber's 28 sidewalls, clear up the waste residue of mud chamber's 28 interior precipitations by slag notch 3, or carry out filter screen 17, the simplified overhauling of water check valve 27, dredging.
Mud chamber 28 keep in repair or deslagging in, the ponding of water inlet in distribution system is in charge of 22 by ponding for subsequent use and is entered mud chamber 16 for subsequent use, starts at mud chamber for subsequent use 16 internal water accumulations, does not affect the normal work of whole tailrace, the negative-pressure balancing of being in charge of on 20 due to the negative-pressure balancing of connection mud chamber 16 for subsequent use divides tube valve 26 to open, cone seal head 18 is also not yet shut sealing cone 24-10, negative-pressure balancing be in charge of 20 and negative-pressure balancing house steward 23 can be conducting to respectively in mud chamber 16 for subsequent use and ponding bucket 4, make the air pressure inside of mud chamber 16 for subsequent use and ponding bucket 4 equal extraction pipeline air pressure, and water inlet distribution system is also being communicated with extraction pipeline, so the air pressure inside of mud chamber 16 for subsequent use and ponding bucket 4 and water inlet distribution system air pressure, extraction pipeline air pressure all equates, extraction pipeline ponding just can flow into water inlet distribution system under self gravitation effect like this, then enter mud chamber 16 for subsequent use, by entering water check valve 27 after filter screen 17 filtering graininess impurity, mud chamber for subsequent use 16 internal water accumulations reach after certain water level, and the spool of water check valve 27 is opened under ponding pressure-acting, and the ponding of filtering graininess impurity flows into ponding bucket 4.
Along with the interior water filling of water check valve 27 continuous vector product bucket 4 in mud chamber 16 for subsequent use, water level in ponding bucket 4 rises, and due to the magnet 9 of float 12 bottoms be fixed on the adhesive of magnet 8 on base 10, float 12 can not float, prevent that float 12 is with the water level fluctuation litter 11 that rubs, after water level reach a certain height, the buoyancy that float 12 is subject to is greater than the attraction sum between self gravitation and magnet 8 and magnet 9, float 12 departs from the constraint of magnet 8 on base 10, float along litter 11 with increasing acceleration, in height pusher action-oriented pallet 7 high speeds of arrival guiding pallet 7, move, on in conjunction with guiding pallet 7, move to behind the position that approaches on-off valve 24, the increasing attraction of generation between magnet 6 on guiding pallet 7 and the magnet 19 on on-off valve 24, in conjunction with the buoyancy of float 12, can promote cone seal head 18 and back down fast voussoir 24-5, interlock rigid posts 24-4 pushes open and is originally oppressed the arc sealing block 24-3 in wedged seal mouth 24-7 by spring 24-2, atmosphere is by air vent 24-8 like this, wedged seal mouth 24-7, location sealing conduit 24-11 is conducting in ponding bucket 4, the taper surface of cone seal head 18 coordinates with sealing cone 24-10 simultaneously, completely cut off contacting of negative-pressure balancing house steward 23 and ponding bucket 4.Now, ponding bucket 4 internal gas pressures equal atmospheric pressure, and the air pressure of mud chamber 16 for subsequent use equals the negative pressure in negative-pressure balancing system and water inlet distribution system, this pressure reduction is closed the water check valve 27 in mud chamber 16 for subsequent use, in the time that the ponding in ponding bucket 4 reaches higher level, under ponding Action of Gravity Field, water check valve 14 starts to discharge water.
Along with the carrying out of water check valve 14 drainage procedures, the interior water level of ponding bucket 4 declines, and float 12 moves down gradually, and magnet 6 on guiding pallet 7 still with on-off valve 24 on magnet 19 adhesives; When the interior water level of ponding bucket 4 is reduced to lower water level, attraction between magnet 8 on float 12 bottom magnet 9 and base 10 is added when float 12 self gravitations are greater than the buoyancy of float 12, magnet 8 quick pick-ups on float 12 bottom magnet 9 and base 10, at this moment the lucky full extension of stay cord 15 leading between pallet 7 and float 12 is opened, can add under the synergy of float 12 gravity in the attraction of magnet 9 and magnet 8, pull guiding pallet 7 to move down; Cone seal head 18 is along with guiding pallet 7 moves down, depart from and coordinate with sealing cone 24-10, arc sealing block 24-3 is also under spring 24-2 pressure-acting simultaneously, again shut wedged seal mouth 24-7, make ponding bucket 4 by negative pressure interface 24-9, location sealing conduit 24-11 conducting negative-pressure balancing house steward 23, completely cut off the conducting of ponding bucket 4 with atmosphere simultaneously.Like this, ponding bucket 4 internal gas pressures equal the air pressure in negative-pressure balancing system, water inlet distribution system again, the ponding of water inlet in distribution system can be in Action of Gravity Field down-flow water mud chamber 16 for subsequent use, by water check valve 27 flows into ponding bucket 4 in after reaching certain water level in mud chamber 16 for subsequent use.
Complete after the maintenance or deslagging to mud chamber 28, opening ponding is in charge of the negative-pressure balancing that the ponding on 25 divides tube valve 2 and the negative-pressure balancing that is connected mud chamber 28 to be in charge of on 20 and divides tube valve 26, sealed the slag notch 3 on mud chamber's 28 sidewalls, can come into operation again in mud chamber 28 like this.

Claims (1)

1. a negative pressure automatic drainage device, comprise ponding bucket (4), be located at the buoyancy conversion device in ponding bucket (4), it is characterized in that: the top reverse symmetry of buoyancy conversion device is provided with mud chamber (28) and mud chamber for subsequent use (16), the entrance of mud chamber (28) and mud chamber for subsequent use (16) is respectively equipped with the water check valve (27) of water inlet in vector product bucket (4), ponding bucket (4) top is provided with into water distribution system and negative pressure distribution system, the bottom of mud chamber (28) and mud chamber for subsequent use (16) is respectively equipped with the double slag notch (3) that does observation panel, the bottom of ponding bucket (4) is provided with water check valve (14), described buoyancy conversion device comprises base (10), be sleeved on the base magnet (8) on base (10), be fixed on the litter (11) on base (10), be sleeved on the float (12) on litter (11), the bottom of float (12) is provided with the float magnet (9) corresponding with base magnet (8), the guiding pallet (7) that the top of float (12) is connected through stay cord (15) with it, guiding pallet (7) is provided with pallet magnet (6) and cone seal head (18), the top of cone seal head (18) is provided with the on-off valve (24) matching with it, on-off valve (24) is fixed on ponding bung (21), described water inlet distribution system comprises water header (1), the ponding that is connected with water header (1) is in charge of (25) and ponding for subsequent use is in charge of (22) respectively, ponding for subsequent use is in charge of (22) and is positioned at the top that ponding is in charge of (25), ponding for subsequent use is in charge of (22) and is connected with mud chamber for subsequent use (16), ponding is in charge of (25) and is connected with mud chamber (28), and ponding is in charge of (25) and ponding for subsequent use and is in charge of and on (22), is respectively equipped with ponding and divides tube valve (2), described negative pressure distribution system comprises that the negative-pressure balancing that negative-pressure balancing house steward (23), symmetry are located at negative-pressure balancing house steward (23) both sides is in charge of (20), and negative-pressure balancing is in charge of (20) and is provided with negative-pressure balancing pipe sub valve (26),
Described mud chamber (28) and the exit of mud chamber for subsequent use (16) are respectively equipped with filter screen (17);
Described on-off valve (24) comprises valve body (24-1), the upper end of valve body (24-1) is provided with negative pressure interface (24-9), the bottom of valve body (24-1) has annular groove, annular groove middle part is provided with location sealing conduit (24-11), between location sealing conduit (24-11) and negative pressure interface (24-9), be provided with the sealing cone (24-10) adapting with cone seal head (18), valve body (24-1) top, be provided with multiple air vents (24-8) around negative pressure interface (24-9), on described location sealing conduit (24-11) wall, symmetry has wedged seal mouth (24-7), in described annular groove, horizontal symmetrical is provided with guide cylinder (24-6), in guide cylinder (24-6), be provided with the arc sealing block (24-3) matching with wedged seal mouth (24-7), the rear portion of arc sealing block (24-3) is provided with spring (24-2), the front portion of arc sealing block (24-3) is connected with voussoir (24-5) through rigid posts (24-4).
CN201210244586.7A 2012-07-16 2012-07-16 Negative pressure automatic water discharge device Expired - Fee Related CN102767393B (en)

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