CN113294200A - Negative pressure adjustable full-automatic water drainage device - Google Patents
Negative pressure adjustable full-automatic water drainage device Download PDFInfo
- Publication number
- CN113294200A CN113294200A CN202110781399.1A CN202110781399A CN113294200A CN 113294200 A CN113294200 A CN 113294200A CN 202110781399 A CN202110781399 A CN 202110781399A CN 113294200 A CN113294200 A CN 113294200A
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- water
- negative pressure
- collecting box
- valve
- piston
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 136
- 238000007667 floating Methods 0.000 claims abstract description 19
- 239000002893 slag Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract description 40
- 238000009825 accumulation Methods 0.000 abstract description 11
- 239000003245 coal Substances 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 abstract description 7
- 238000009423 ventilation Methods 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 description 6
- 238000005553 drilling Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention provides a negative pressure adjustable full-automatic water discharger which comprises a water accumulation collecting box, wherein the bottom of the water accumulation collecting box is provided with a slag removing port and a water outlet, the upper part of the water accumulation collecting box is provided with a water inlet and a top cover, the water inlet is connected to a negative pressure extraction pipe through a pipeline, the top cover is provided with a balance port and a floating device, and the water inlet and the water outlet are respectively provided with a one-way check valve. The negative pressure of the gas extraction pipeline is utilized to completely and tightly plug the one-way check valve and the gas inlet, so that the negative pressure of the accumulated water collecting box is consistent with that of the gas extraction pipeline, and water in the gas extraction pipeline can enter the accumulated water collecting box. The pressure difference between the extraction negative pressure acting on the accumulated water collecting box and the positive pressure generated by the float bowl is adjusted by adjusting the adjustable valve on the balance port, so that the piston is conveniently and rapidly jacked open for ventilation, and the full-automatic negative pressure water discharging function is realized; in addition, the water drainage device is simple in structure and convenient to install, and drainage cost of a coal mine gas drainage pipeline is saved.
Description
Technical Field
The invention belongs to the technical field of coal mine safety instruments, and particularly relates to a negative pressure adjustable full-automatic water discharger.
Background
In the coal mining process, gas needs to be extracted, after extraction drill holes are extracted continuously, slag discharging water, drilling slag and water permeating into the peripheries of the drill holes in the drilling period are retained in the low-lying positions of the gas pipes under the action of negative pressure, so that gas flowing channels are reduced due to the fact that the drilling slag and the water are blocked, the gas extraction effect is greatly influenced, the traditional float-type water drainage device is difficult to control the pressure balance in a water accumulation collecting barrel, the water drainage effect is poor, for example, a plurality of problems exist in the conventional negative pressure water drainage device, the electric control type water drainage device is high in cost, needs power distribution, is easy to damage an electromagnetic valve, and cannot be widely used in a coal extraction system. The mechanical negative pressure water discharging device has high requirement on negative pressure balance, drilling slag is difficult to clean, and the adjustment requirement caused by the change of the negative pressure of the extraction drill hole cannot be met.
Disclosure of Invention
In order to solve the technical problem, the invention provides a negative pressure adjustable full-automatic water drainage device, which is characterized in that a one-way check valve and an air inlet are completely plugged tightly by utilizing the negative pressure of a gas extraction pipeline, so that the negative pressure of a water accumulation collecting box is consistent with that of the extraction pipeline, and water in the extraction pipeline can enter the water accumulation collecting box. The pressure difference between the extraction negative pressure acting on the accumulated water collecting box and the positive pressure generated by the float bowl is adjusted by adjusting the adjustable valve on the balance port, so that the piston is conveniently and rapidly jacked open for ventilation, and the full-automatic negative pressure water discharging function is realized; in addition, this ware that drains simple structure, simple to operate are favorable to practicing thrift the drainage cost of colliery drainage gas pipeline, the effectual technical problem who solves above-mentioned existence.
The invention relates to a negative pressure adjustable full-automatic water discharger, which is achieved by the following specific technical means:
the utility model provides an adjustable full-automatic ware that drains of negative pressure, it is including ponding collecting box, the bottom of ponding collecting box is equipped with slag notch and delivery port, is equipped with water inlet and top cap on the upper portion of ponding collecting box, and the water inlet is equipped with balanced mouth and floating installation on the top cap through pipe connection to negative pressure drainage pipe, all is equipped with one-way check valve in water inlet and delivery port department. The negative pressure of the gas extraction pipeline is utilized to completely and tightly plug the one-way check valve and the gas inlet, so that the negative pressure of the accumulated water collecting box is consistent with that of the gas extraction pipeline, and water in the gas extraction pipeline can enter the accumulated water collecting box. The pressure difference between the extraction negative pressure acting on the accumulated water collecting box and the positive pressure generated by the float bowl is adjusted by adjusting the adjustable valve on the balance port, so that the piston is conveniently and rapidly jacked open for ventilation, and the full-automatic negative pressure water discharging function is realized; in addition, the water drainage device is simple in structure and convenient to install, and drainage cost of a coal mine gas drainage pipeline is saved.
The floating device comprises a sealing box body, a floating barrel, a connecting rod and a piston, wherein the piston is positioned in the sealing box body and can slide up and down, the sealing box body is fixedly connected to the top cover, the bottom end of the sealing box body extends into the accumulated water collecting box, a guide hole is formed in the bottom of the sealing box body, the connecting rod is positioned in the guide hole and can slide up and down, the piston and the floating barrel are respectively connected to the top end and the bottom end of the connecting rod, and an air inlet hole is formed in the upper side wall of the sealing box body.
The sealed box body is internally provided with a cavity body, the piston is positioned in the cavity body and slides up and down, the cavity body is communicated with the inner cavity of the atmosphere and the accumulated water collecting box through the air inlet hole and the guide hole respectively, and when the piston is positioned at the top of the cavity body, the atmosphere is communicated with the inner cavity of the accumulated water collecting box through the air inlet hole and the guide hole.
The balance port is provided with an adjustable valve, the adjustable valve comprises a screw rod and a nut, the inner side of the closed bottom of the top end of the screw rod is provided with a cylindrical cavity, the side wall of the upper part of the screw rod is provided with a notch, the atmosphere is communicated with the inner cavity of the accumulated water collecting box through the notch and the cylindrical cavity, the nut is sleeved on the screw rod and can be adjusted by up-down threads, and the notch is blocked by the nut.
The one-way check valve comprises a valve body, a sealing ring and a valve plate, wherein the sealing ring is arranged on the inner side of the valve body, the valve plate is positioned on the side edge of the sealing ring, and the top end of the valve plate is hinged to the valve body through a pin shaft.
And the one-way check valve at the water inlet is opened towards the accumulated water collecting tank.
The one-way check valve at the water outlet is opened outwards.
The invention requires that the floating device can adjust the interconversion among the pressure generated by the extraction negative pressure, the buoyancy of the float bowl and the gravity of the float bowl. If the negative pressure is adjusted to be large through the floating device, the acting force is also large, the buoyancy cannot overcome the pressure of the air inlet hole and the self gravity, and the air inlet hole cannot be opened; if the water pressure in the drainage pipe is too low, the negative pressure of the accumulated water collecting box and the drainage pipe cannot be balanced quickly, and water in the drainage pipe cannot enter the accumulated water collecting box and cannot be used.
Therefore, the sectional area of the adjustable valve 11 reserved in the balance port is adjusted before the first use under the negative pressure state of the place where the valve is used, so that when the buoy pushes the connecting rod to the position above the air inlet hole to discharge water, the pressure on the balance pipe is smaller than that of the air inlet hole, and the water in the water tank can be discharged under the self-weight condition.
The invention at least comprises the following beneficial effects:
the negative pressure of the gas extraction pipeline is utilized to completely and tightly plug the one-way check valve and the gas inlet, so that the negative pressure of the accumulated water collecting box is consistent with that of the gas extraction pipeline, and water in the gas extraction pipeline can enter the accumulated water collecting box. The pressure difference between the extraction negative pressure acting on the accumulated water collecting box and the positive pressure generated by the float bowl is adjusted by adjusting the adjustable valve on the balance port, so that the piston is conveniently and rapidly jacked open for ventilation, and the full-automatic negative pressure water discharging function is realized; in addition, the water drainage device is simple in structure and convenient to install, and drainage cost of a coal mine gas drainage pipeline is saved.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an adjustable valve according to the present invention;
FIG. 3 is a cross-sectional view A-A of the adjustable valve of the present invention;
FIG. 4 is a schematic view of a one-way check valve according to the present invention;
fig. 5 is a side view of the one-way check valve of the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below by way of examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "two ends," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood broadly, and for example, they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Example (b):
the invention provides a negative pressure adjustable full-automatic water discharger, which comprises a water accumulation collecting box 1, wherein the bottom of the water accumulation collecting box 1 is provided with a slag removing port 6 and a water outlet 3, the upper part of the water accumulation collecting box 1 is provided with a water inlet 2 and a top cover 12, the water inlet 2 is connected to a negative pressure extraction pipe through a pipeline, the top cover 12 is provided with a balance port 5 and a floating device, and the water inlet 2 and the water outlet 3 are respectively provided with a one-way check valve 10. The one-way check valve 10 and the air inlet 4 are completely plugged tightly by using the negative pressure of the gas extraction pipeline, so that the accumulated water collecting box 1 is consistent with the negative pressure of the gas extraction pipeline, and water in the gas extraction pipeline can enter the accumulated water collecting box 1. The pressure difference between the extraction negative pressure acting on the accumulated water collecting box 1 and the positive pressure generated by the float 9 is adjusted by adjusting the adjustable valve 11 on the balance port 5, so that the piston 14 is conveniently and rapidly jacked open for ventilation, and the full-automatic negative pressure water drainage function is realized; in addition, the water drainage device is simple in structure and convenient to install, and drainage cost of a coal mine gas drainage pipeline is saved.
Furthermore, the floating device comprises a sealing box body 7, a floating barrel 9, a connecting rod 8 and a piston 14, wherein the piston 14 is positioned in the sealing box body 7 and can slide up and down, the bottom end of the sealing box body 7 is fixedly connected to a top cover 12 and extends into the accumulated water collecting box 1, a guide hole 15 is formed in the bottom of the sealing box body 7, the connecting rod 8 is positioned in the guide hole 15 and can slide up and down, the piston 14 and the floating barrel 9 are respectively connected to the top end and the bottom end of the connecting rod 8, and an air inlet hole 4 is formed in the side wall of the upper portion of the sealing box body 7.
Further, there is empty cavity 13 in the sealed box 7, and piston 14 slides from top to bottom in being located cavity 13, and cavity 13 communicates with atmosphere and 1 inner chamber of ponding collecting box through inlet port 4 and guiding hole 15 respectively, and when piston 14 was located cavity 13 top, the atmosphere communicated with 1 inner chamber of ponding collecting box through inlet port 4 and guiding hole 15.
Further, the balance port 5 is provided with an adjustable valve 11, as shown in fig. 2-3, the adjustable valve 11 includes a screw rod 112 and a nut 111, the inner side of the closed bottom of the top end of the screw rod 112 is provided with a cylindrical cavity 113, the side wall of the upper part of the screw rod 112 is provided with a notch 110, the atmosphere is communicated with the inner cavity of the accumulated water collecting tank 1 through the notch 110 and the cylindrical cavity 113, the nut 111 is sleeved on the screw rod 112 and can be adjusted by upper and lower threads, and the amount of the notch 110 is blocked by the nut 111 for adjustment.
Further, as shown in fig. 4-5, the check valve 10 includes a valve body 100, a sealing ring 101 and a valve plate 102, the sealing ring 101 is disposed inside the valve body 100, the valve plate 102 is disposed at a side of the sealing ring 101, and a top end of the valve plate 102 is hinged to the valve body 100 through a pin 103.
Further, the one-way check valve 10 at the water inlet 2 is opened towards the accumulated water collecting box 1.
Further, the one-way check valve 10 at the water outlet 3 is opened outwards.
The invention requires that the floating device can adjust the interconversion among the pressure generated by the extraction negative pressure, the buoyancy of the float bowl and the gravity of the float bowl. If the negative pressure is adjusted to be large through the floating device, the acting force is also large, the buoyancy cannot overcome the pressure of the air inlet hole and the self gravity, and the air inlet hole cannot be opened; if the water pressure in the drainage pipe is too low, the negative pressure of the accumulated water collecting box and the drainage pipe cannot be balanced quickly, and water in the drainage pipe cannot enter the accumulated water collecting box and cannot be used.
Therefore, the sectional area of the adjustable valve 11 reserved in the balance port 5 needs to be adjusted under the negative pressure state of the used place before the first use, so that when the buoy pushes the connecting rod to the position above the air inlet hole to discharge water, the pressure on the balance pipe is smaller than that of the air inlet hole, and the water in the water tank can be discharged under the self-weight condition.
The working principle of the invention is as follows: the one-way check valve 10 and the air inlet 4 are completely plugged tightly by using the negative pressure of the gas extraction pipeline, so that the accumulated water collecting box 1 is consistent with the negative pressure of the gas extraction pipeline, and water in the gas extraction pipeline can enter the accumulated water collecting box 1. When the water level is lowered to the state that the gravity of the float bowl 9 is greater than the buoyancy of the water, the float bowl 9 drives the floating device to descend below the air inlet hole 4 to block the air inlet hole 4, and only the adjustable valve 11 works at the moment until the negative pressure in the accumulated water collecting barrel 1 is reduced to be consistent with the negative pressure in the gas extraction pipe, the process is repeated.
When the water drainage device is used, the negative pressure connecting port (water inlet) 2 and the balance port 5 can be connected with an extraction pipeline, the air inlet 4 and the water outlet 3 are both in a closed state under the action of extraction negative pressure, the negative pressure in the water tank and the negative pressure in the gas extraction pipe reach balance, accumulated water and drilling slag in the extraction pipeline enter the water tank 1 through the negative pressure connecting port (water inlet) 2, the water level rises along with the gradual increase of the accumulated water, the buoy 9 drives the connecting rod 8 to gradually rise until the position of the water inlet 4 is exceeded, so that outside air enters the water tank 1, the valve plate 102 arranged in the negative pressure connecting port (water inlet) 2 is closed, and the valve plate 102 of the water outlet 3 is jacked open by the accumulated water and flows out of the water outlet 3. When the accumulated water is drained, the floating barrel 9, the connecting rod 8 and other movable components descend below the air hole of the air inlet hole 4 under the action of gravity, the adjustable valve 11 on the balance port 5 enables the atmospheric pressure in the water tank to be changed into a negative pressure state again, and then the process is repeated.
The device adjusts the relationships of negative pressure, water pressure, material dead weight and the like in the water tank through the adjustable valve 11 arranged on the balance port 5, and the dead weight of water is greater than the pumping negative pressure, so that accumulated water in the device can smoothly flow out, and the stability and the safety of the system are further ensured.
The device utilizes the negative pressure of the gas extraction pipeline to tightly plug the one-way check valve and the gas inlet hole, so that the water accumulation collecting box and the extraction pipeline have the same negative pressure, and water in the extraction pipeline can enter the water accumulation collecting box. The pressure difference between the extraction negative pressure acting on the accumulated water collecting box and the positive pressure generated by the float bowl is adjusted by adjusting the adjustable valve on the balance port, so that the piston is conveniently and rapidly jacked open for ventilation, and the full-automatic negative pressure water discharging function is realized; in addition, the water drainage device is simple in structure and convenient to install, and drainage cost of a coal mine gas drainage pipeline is saved.
The invention is not described in detail, but is well known to those skilled in the art.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The utility model provides an adjustable full-automatic ware that drains of negative pressure, it is including ponding collecting box (1), its characterized in that: the bottom of ponding collecting box (1) is equipped with slag removal mouth (6) and delivery port (3), is equipped with water inlet (2) and top cap (12) on the upper portion of ponding collecting box (1), and on water inlet (2) were connected to the negative pressure and are taken out the drainage pipe through the pipeline, be equipped with balanced mouthful (5) and floating installation on top cap (12), all be equipped with one-way check valve (10) in water inlet (2) and delivery port (3) department.
2. The negative pressure adjustable full-automatic water discharger according to claim 1, wherein: the floating device comprises a sealing box body (7), a floating barrel (9), a connecting rod (8) and a piston (14), wherein the piston (14) is positioned in the sealing box body (7) and can slide up and down, the bottom end of the sealing box body (7) is fixedly connected to a top cover (12) and stretches into the accumulated water collecting box (1), a guide hole (15) is formed in the bottom of the sealing box body (7), the connecting rod (8) is positioned in the guide hole (15) and can slide up and down, the piston (14) and the floating barrel (9) are respectively connected to the top end and the bottom end of the connecting rod (8), and an air inlet hole (4) is formed in the side wall of the upper portion of the.
3. The negative pressure adjustable full-automatic water discharger according to claim 2, wherein: there is cavity (13) in sealed box (7), and piston (14) slide from top to bottom in being located cavity (13), and cavity (13) communicate with atmosphere and ponding collecting box (1) inner chamber through inlet port (4) and guiding hole (15) respectively, and when piston (14) were located cavity (13) top, the atmosphere passed through inlet port (4) and guiding hole (15) and ponding collecting box (1) inner chamber intercommunication.
4. The negative pressure adjustable full-automatic water discharger according to claim 1, wherein: be equipped with adjustable valve (11) on balanced mouth (5), adjustable valve (11) include screw rod (112) and nut (111), there is cylinder cavity (113) screw rod (112) top closed bottom inboard, be equipped with breach (110) on the lateral wall of screw rod (112) upper portion, the atmosphere passes through breach (110) and cylinder cavity (113) and ponding collecting box (1) inner chamber intercommunication, screw thread regulation about can on screw rod (112) is cup jointed in nut (111), adjust through how much of nut (111) shutoff breach (110).
5. The negative pressure adjustable full-automatic water discharger according to claim 1, wherein: the one-way check valve (10) comprises a valve body (100), a sealing ring (101) and a valve plate (102), wherein the sealing ring (101) is arranged on the inner side of the valve body (100), the valve plate (102) is located on the side edge of the sealing ring (101), and the top end of the valve plate (102) is hinged to the valve body (100) through a pin shaft (103).
6. The negative pressure adjustable full-automatic water discharger according to claim 1, wherein: the one-way check valve (10) at the water inlet (2) is opened towards the accumulated water collecting box (1).
7. The negative pressure adjustable full-automatic water discharger according to claim 1, wherein: the one-way check valve (10) at the water outlet (3) is opened outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110781399.1A CN113294200A (en) | 2021-07-11 | 2021-07-11 | Negative pressure adjustable full-automatic water drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110781399.1A CN113294200A (en) | 2021-07-11 | 2021-07-11 | Negative pressure adjustable full-automatic water drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113294200A true CN113294200A (en) | 2021-08-24 |
Family
ID=77330673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110781399.1A Pending CN113294200A (en) | 2021-07-11 | 2021-07-11 | Negative pressure adjustable full-automatic water drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113294200A (en) |
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2021
- 2021-07-11 CN CN202110781399.1A patent/CN113294200A/en active Pending
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