CN107875703A - Efficient waste water pumping device - Google Patents
Efficient waste water pumping device Download PDFInfo
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- CN107875703A CN107875703A CN201711191665.5A CN201711191665A CN107875703A CN 107875703 A CN107875703 A CN 107875703A CN 201711191665 A CN201711191665 A CN 201711191665A CN 107875703 A CN107875703 A CN 107875703A
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- water
- water inlet
- storage cavity
- water storage
- sealing plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a kind of efficient waste water pumping device, including tank and water pump, an independent water storage cavity is provided with tank, the bottom of the water inlet pipe insertion water storage cavity of water pump, the side wall of water storage cavity is provided with the first water inlet, the bottom of water storage cavity is provided with the second water inlet, and the water inlet end of the first water inlet is provided with the first filter, and the second water inlet is provided with the second filter；Also include guide chute and buoyant spheres, guide chute is arranged on inside water storage cavity, agretope and lower agretope are provided with guide chute, buoyant spheres are arranged on the outside of water storage cavity, a guide rod is connected with buoyant spheres, the end of guide rod is connected with gag lever post, and the both ends of gag lever post are limited in guide chute；The first sealing plate and the second sealing plate are provided with guide rod, the first sealing plate is arranged on inside water storage cavity, and the second sealing plate is arranged on the outside of water storage cavity.Efficient waste water pumping device provided by the invention, effectively avoids the impurity in waste water from entering in water pump.
Description
Technical field
The present invention relates to technical field of waste water processing, and in particular to a kind of efficient waste water pumping device.
Background technology
With social city, technicalization, hommization development, industrial sector has obtained vigorous growth, more and more
Factory rise sheer from level ground, the thing followed is the increase of environmental protection equipment usage amount and showing for waste water pollution problem.Contain in waste water
There is caused pollutant in the industrial production materials, intermediate product and the product that are lost in medicament and production process, to waste water
Processing procedure in, in order to which such waste water to be sent to final processing place, it is necessary to water pump is installed in water process wastewater disposal basin, will be useless
Water is sent to appointed place.
Water pump is generally slush pump, screw pump used by waste water in existing waste water conveying extracts, and such pump group is equal
There are impeller or screw rod directly to contact, the impurity in waste water is easily wrapped on impeller or screw rod after entering in water pump, causes water
Pump running resistance becomes big, and transfer efficiency declines until can not run, and water pump is blocked, causes motor self-protection chaser, due to
The winding of impurity, causing water pump to jump car can not run, so pump body must be taken apart every time, after impurity is cleaned out,
Again could be run again after water pump is installed, while the impurity in waste water is predominantly located in the bottom of wastewater disposal basin, directly
The water inlet pipe of water pump is placed on to the bottom of wastewater disposal basin, easily the impurity in waste water is transported in water pump, and water inlet pipe can be through
Often it is blocked.Therefore waste water is extracted using this device, operating efficiency is low and needs often to carry out demolition and maintenance to it.
The content of the invention
It is an object of the invention to provide a kind of efficient waste water pumping device, to solve weak point of the prior art.
To achieve these goals, the present invention provides following technical scheme：
A kind of efficient waste water pumping device, including tank and water pump, an independent storage is provided with the tank
Water cavity, the water inlet pipe of the water pump insert the bottom of the water storage cavity, and the water storage cavity is fixed on the tank by crossbeam
Side wall, the side wall of the water storage cavity is provided with the first water inlet, and the bottom of the water storage cavity is provided with the second water inlet, described
The water inlet end of first water inlet is provided with the first filter, and second water inlet is provided with the second filter；Also include being oriented to
Chute and buoyant spheres, the guide chute are arranged on inside the water storage cavity, be provided with the guide chute agretope and
Lower agretope, the buoyant spheres are arranged on the outside of the water storage cavity, and a guide rod, the guide rod are connected with the buoyant spheres
End be connected with gag lever post, the both ends of the gag lever post are limited in the guide chute；Is provided with the guide rod
One sealing plate and the second sealing plate, first sealing plate are arranged on inside the water storage cavity, and second sealing plate is arranged on
On the outside of the water storage cavity；
The gag lever post is in the presence of the buoyant spheres, along the guide chute between upper agretope and lower agretope
Move back and forth；In agretope on described, second sealing plate is connected on second water inlet to close described second
Water inlet；During from the upper agretope to lower agretope, second sealing plate is moved downward out in second water inlet,
Second water inlet is opened；In the lower agretope, first sealing plate is connected on second water inlet to close
Close second water inlet.
Above-mentioned efficient waste water pumping device, first water inlet have multiple, multiple first water inlet distributions
Different height in the water storage cavity side wall.
Above-mentioned efficient waste water pumping device, first filter are a circular arc plate, on first filter
Multiple first filter bores are provided with, multiple second filter bores, the hole of second filter bores are provided with second filter
Footpath is less than the aperture of the first filter bores.
Above-mentioned efficient waste water pumping device, the guide chute are arranged on the water storage cavity bosom position, institute
State the madial wall that guide chute is fixed on the water storage cavity by cross bar.
Above-mentioned efficient waste water pumping device, second water inlet are intake tunnel, the water inlet of the intake tunnel
End and water side are circular arc arc, and the sealing of arc-shaped is correspondingly arranged on first sealing plate and the second sealing plate.
Above-mentioned efficient waste water pumping device, the buoyant spheres have two, and two buoyant spheres are separately positioned on institute
State between the lateral wall of water storage cavity and the tank madial wall, the buoyant spheres are connected by connecting rod with the guide rod
Connect.
Above-mentioned efficient waste water pumping device, the gag lever post is in agretope on described, the height of the buoyant spheres
More than the height of first water inlet of extreme lower position.
In the above-mentioned technical solutions, a kind of efficient waste water pumping device provided in an embodiment of the present invention, in tank
An independent water storage cavity is provided with, the side wall of water storage cavity is provided with the first water inlet, and the bottom of water storage cavity is provided with the second water inlet
Mouthful, be provided with filter on the first water inlet and the second water inlet, water storage cavity by the first water inlet and the second water inlet with
Tank is connected, and water storage cavity is internally provided with guide chute, and buoyant spheres are by guide rod and gag lever post on guide groove
Moved between upper agretope and lower agretope so that tank is in different water levels, the first sealing plate on guide rod and
Second sealing plate is closed to the second water inlet respectively, so that the impurity in tank in waste water does not enter water storage
Chamber, the impurity in waste water is effectively avoided to enter in water pump.
Brief description of the drawings
, below will be to institute in embodiment in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only one described in the present invention
A little embodiments, for those of ordinary skill in the art, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of efficient waste water pumping device provided in an embodiment of the present invention；
Fig. 2 is one of structural representation of water storage cavity provided in an embodiment of the present invention；
Fig. 3 is the two of the structural representation of water storage cavity provided in an embodiment of the present invention.
Description of reference numerals：
1st, tank；2nd, water storage cavity；2.1st, the first water inlet；2.1.1, the first filter；2.2nd, the second water inlet；
2.2.1, intake tunnel；；2.2.2, the second filter；2.3rd, guide chute；2.3.1, upper agretope；2.3.2, lower agretope；
2.4th, guide rod；2.5th, gag lever post；2.6th, the first sealing plate；2.7th, the second sealing plate；2.8th, sealing；3rd, water pump；3.1st, enter
Water pipe；4th, buoyant spheres；4.1st, connecting rod；5th, crossbeam.
Embodiment
In order that those skilled in the art more fully understands technical scheme, below in conjunction with accompanying drawing to this hair
It is bright to be further detailed.
As Figure 1-3, a kind of efficient waste water pumping device provided in an embodiment of the present invention, including tank 1 and water
Pump 3, an independent water storage cavity 2 is provided with tank 1, and the water inlet pipe 3.1 of water pump 3 inserts the bottom of water storage cavity 2, water storage cavity 2
The side wall of tank 1 is fixed on by crossbeam 5, the side wall of water storage cavity 2 is provided with the first water inlet 2.1, and the bottom of water storage cavity 2 is set
The second water inlet 2.2 is equipped with, the water inlet end of the first water inlet 2.1 is provided with the first filter 2.1.1, and the second water inlet 2.2 is set
It is equipped with the second filter 2.2.2；Also including guide chute 2.3 and buoyant spheres 4, guide chute 2.3 is arranged on inside water storage cavity 2,
Agretope 2.3.1 and lower agretope 2.3.2 are provided with guide chute 2.3, buoyant spheres 4 are arranged on the outside of water storage cavity 2, buoyancy
A guide rod 2.4 is connected with ball 4, the end of guide rod 2.4 is connected with gag lever post 2.5, and the both ends of gag lever post 2.5, which are limited in, leads
Into chute 2.3；The first sealing plate 2.6 and the second sealing plate 2.7 are provided with guide rod 2.4, the first sealing plate 2.6 is arranged on
Inside water storage cavity 2, the second sealing plate 2.7 is arranged on the outside of water storage cavity 2.
Specifically, tank 1 is used to accept waste water caused by industrial production or life, water storage cavity 2 is arranged on tank 1
Inside, and have a certain distance between the bottom of water storage cavity 2 and the bottom of tank 1, water storage cavity 2 can be a water butt,
The inside of tank 1, which can also be provided in, has the other structures of water storage function, and water storage cavity 2 is fixed on tank 1 by crossbeam 5
Side wall on, the first water inlet 2.1 is provided with the side wall of water storage cavity 2, the bottom of water storage cavity 2 is provided with the second water inlet
2.2, water storage cavity 2 is connected by the first water inlet 2.1 with the language tank 1 of the second water inlet 2.2, in the first water inlet 2.1
Water inlet end is provided with the first filter 2.1.1, and the water inlet end of the second water inlet 2.2 is provided with the second filter 2.2.2, and first
Filter 2.1.1 and the second filter 2.2.2 carries out filtration treatment to the decorating film in waste water and floccule, avoids in waste water
Decorating film and floccule are entered in the first water inlet 2.1, the second water inlet 2.2 and water storage cavity 2, so as to cause the first water inlet
2.1 and second water inlet 2.2 blocking, the upper end of water storage cavity 2 be provided with the water inlet pipe 3.1 of supply-water pump 3 insertion hole, water pump 3
Water inlet pipe 3.1 is inserted into the bottom of water storage cavity 2 by hole, is drawn into the inside waste water of water storage cavity 2 by water pump 3 and formulates position
Put, pass through filtration treatment due to entering the waste water in water storage cavity 2, so as to effectively avoid the magazine in waste water from blocking water pump
3 water pipe.
In the present embodiment, guide chute 2.3 is additionally provided with the inside of water storage cavity 2, guide chute 2.3 is vertically set
Put, gag lever post 2.5 is connected with guide chute 2.3, gag lever post 2.5 can move up and down along guide chute 2.3, in guide chute
Agretope 2.3.1 and lower agretope 2.3.2 are provided with 2.3, is limited, that is, limited with the up and down motion to gag lever post 2.5
Position bar 2.5 can only move between the upper agretope 2.3.1 in guide chute 2.3 and lower agretope 2.3.2, and buoyant spheres 4 pass through
Guide rod 2.4 is fixed with the phase of gag lever post 2.5, and buoyant spheres 4 are arranged on the outside of water storage cavity 2, are provided with the bottom of water storage cavity 2 for leading
The perforate passed through to bar 2.4, the first sealing plate 2.6 and the second sealing plate 2.7, the first sealing plate are provided with guide rod 2.4
2.6 are arranged on the inside of water storage cavity 2, the shape of the first sealing plate 2.6 and the shape phase of the water side of the second water inlet 2.2
Match somebody with somebody, the water side of the second water inlet 2.2 can be connected to close the second water inlet 2.2, the second sealing plate 2.7 is arranged on water storage
The outside of chamber 2, the shape of the second sealing plate 2.7 and the shape of the water inlet end of the second water inlet 2.2 match, and can be connected to
The water inlet end of two water inlets 2.2 is to close the second water inlet 2.2.
In actual use, because the impurity in waste water is predominantly located in the bottom of tank 1, the second water inlet is easily caused
Mouthfuls 2.2 block, and are engaged by the first sealing plate 2.6 in buoyant spheres 4 and guide rod 2.4 and the second sealing plate 2.7, can be with
Realize the opening and closing of the second water inlet 2.2 under different water levels.When there is no water or very low water level in tank 1, first
Sealing plate 2.6, which is connected on the second water inlet 2.2, closes the second water inlet 2.2, when the rising of water level in tank 1, buoyant spheres 4
Motion upwards, guide rod 2.4 and gag lever post 2.5 is driven to be moved upwards along guide chute 2.3, the first sealing on guide rod 2.4
Plate 2.6 leaves the water side of the second water inlet 2.2, opens the second water inlet 2.2, continues to rise with water level, when tank 1
When interior water level reaches the position of the first water inlet 2.1 on water storage cavity 2, the second sealing plate 2.7 on guide rod 2.4 is connected to
The water inlet end of two water inlets 2.2 closes the second water inlet 2.2, and waste water is crossed the first water inlet 2.1 and entered in water storage cavity 2, works as storage
During water level decreasing in pond 1 to the first water inlet 2.1 for being less than water storage cavity 2, the second sealing plate 2.7 on guide rod 2.4 from
The water inlet end of the second water inlet 2.2 is opened, so as to open the second water inlet 2.2, waste water enters water storage by the second water inlet 2.2
In chamber 2.
A kind of efficient waste water pumping device provided in an embodiment of the present invention, is provided with an independent storage in tank 1
Water cavity 2, the side wall of water storage cavity 2 are provided with the first water inlet 2.1, and the bottom of water storage cavity 2 is provided with the second water inlet 2.2, and first
Filter is provided with the water inlet 2.2 of water inlet 2.1 and second, water storage cavity 2 passes through the first water inlet 2.1 and the second water inlet
2.2 are connected with tank 1, and water storage cavity 2 is internally provided with guide chute 2.3, and buoyant spheres 4 pass through guide rod 2.4 and spacing
Bar 2.5 moves between the upper agretope 2.3.1 and lower agretope 2.3.2 on guide groove, so that tank 1 is in different water
During position, the first sealing plate 2.6 and the second sealing plate 2.7 on guide rod 2.4 are closed to the second water inlet 2.2 respectively, such as
This causes the impurity in tank 1 in waste water not enter water storage cavity 2, effectively avoids the impurity in waste water from entering in water pump 3.
In the present embodiment, it is preferred that the first water inlet 2.1 has multiple, and multiple first water inlets 2.1 are distributed in water storage cavity 2
Different height in side wall, it is multiple enter the first filter 2.1.1 waterborne being provided with, multiple first water inlets 2.1 are set, made
Obtaining waste water can quickly be entered in water storage cavity 2 by the first water inlet 2.1.
In the present embodiment, it is preferred that gag lever post 2.5 is in the presence of buoyant spheres 4, along guide chute 2.3 in upper agretope
2.3.1 moved back and forth between lower agretope 2.3.2；In upper agretope 2.3.1, the second sealing plate 2.7 is connected to second and entered
To close the second water inlet 2.2 on the mouth of a river 2.2；During from upper agretope 2.3.1 to lower agretope 2.3.2, the second sealing plate 2.7 to
Under move from opening in the second water inlet 2.2, the second water inlet 2.2；In lower agretope 2.3.2, the first sealing plate 2.6 supports
It is connected on the second water inlet 2.2 to close the second water inlet 2.2.With the change of water level in tank 1, buoyant spheres 4 move band
Dynamic gag lever post 2.5 moves back and forth between upper agretope 2.3.1 and lower agretope 2.3.2, it is possible to achieve the under different water levels
The opening and closing of two water inlets 2.2, so as to avoid blocking of the impurity in waste water bottom to the second water inlet 2.2.
In this implementation, it is preferred that the first filter 2.1.1 is a circular arc plate, is provided with the first filter 2.1.1 more
Individual first filter bores, multiple second filter bores are provided with the second filter 2.2.2, the aperture of the second filter bores is less than the first mistake
The aperture of filter opening；Circular arc filter causes the impurity in waste water is not doubted to block the first filter bores, the axis side of the first filter bores
To perpendicular with the tangent line of correspondence position on circular arc plate, so that waste water can preferably enter the first water inlet 2.1
In, simultaneously as the impurity in waste water is predominantly located in the bottom of tank 1, in order to avoid the bottom of tank 1 impurity by
Two water inlets 2.2 are blocked, and the aperture design of the second filter bores is less than to the aperture of the first filter bores.
In the present embodiment, it is preferred that guide chute 2.3 is arranged on the bosom position of water storage cavity 2, and guide chute 2.3 is logical
Cross the madial wall that cross bar is fixed on water storage cavity 2, the second water inlet 2.2 is intake tunnel 2.2.1, intake tunnel 2.2.1 water inlet
End and water side are circular arc arc, and the sealing of arc-shaped is correspondingly arranged on the first sealing plate 2.6 and the second sealing plate 2.7
2.8, the first sealing plate 2.6 and the second sealing plate 2.7 include connecting portion and sealing 2.8, and connecting portion is consolidated with the phase of guide rod 2.4
Fixed, the sealing 2.8 on the first sealing plate 2.6 is arranged on the lower surface of connecting portion, the sealing 2.8 on the second sealing plate 2.7
The shape of this sealing 2.8 on the upper surface of connecting portion, the first sealing plate 2.6 and intake tunnel 2.2.1 water side
Match so that when gag lever post 2.5 is located at lower agretope 2.3.2, the sealing 2.8 on the first sealing plate 2.6 can be connected to
Intake tunnel 2.2.1 water side is to close the second water inlet 2.2, and the shape of the sealing 2.8 on the second sealing plate 2.7 is with entering
Aquaporin 2.2.1 water inlet end matches so that gag lever post 2.5, which is located at upper agretope 2.3.1, is, on the second sealing plate 2.7
Sealing 2.8 can be connected to intake tunnel 2.2.1 water inlet end to close the second water inlet 2.2.
In the present embodiment, it is preferred that buoyant spheres 4 have two, and two buoyant spheres 4 are separately positioned on the lateral wall of water storage cavity 2
Between the madial wall of tank 1, buoyant spheres 4 are connected by connecting rod 4.1 with guide rod 2.4, and gag lever post 2.5 is in upper agretope
When 2.3.1, the height of buoyant spheres 4 is more than the height of the first water inlet 2.1 of extreme lower position, while the first water inlet of extreme lower position
There is a certain distance between mouth 2.1 and the bottom of water storage cavity 2, so that, when water level is less than the first water inlet of extreme lower position
When 2.1, the second water inlet 2.2 can just be opened, during realizing the decline with water level, one between water storage cavity 2 and tank 1
Directly it is connected.
Some one exemplary embodiments of the present invention are only described by way of explanation above, undoubtedly, for ability
The those of ordinary skill in domain, without departing from the spirit and scope of the present invention, can be with a variety of modes to institute
The embodiment of description is modified.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as to the present invention
The limitation of claims.
Claims (7)
1. a kind of efficient waste water pumping device, including tank and water pump, it is characterised in that be provided with one in the tank
Independent water storage cavity, the water inlet pipe of the water pump insert the bottom of the water storage cavity, and the water storage cavity is fixed on institute by crossbeam
The side wall of tank is stated, the side wall of the water storage cavity is provided with the first water inlet, and the bottom of the water storage cavity is provided with second and entered
The mouth of a river, the water inlet end of first water inlet are provided with the first filter, and second water inlet is provided with the second filter；
Also include guide chute and buoyant spheres, the guide chute is arranged on inside the water storage cavity, set on the guide chute
Agretope and lower agretope are equipped with, the buoyant spheres are arranged on the outside of the water storage cavity, and being connected with one in the buoyant spheres leads
To bar, the end of the guide rod is connected with gag lever post, and the both ends of the gag lever post are limited in the guide chute；
The first sealing plate and the second sealing plate are provided with the guide rod, first sealing plate is arranged in the water storage cavity
Portion, second sealing plate are arranged on the outside of the water storage cavity；
The gag lever post in the presence of the buoyant spheres, along the guide chute between upper agretope and lower agretope it is reciprocal
Motion；
In agretope on described, second sealing plate is connected on second water inlet to close second water inlet
Mouthful；
During from the upper agretope to lower agretope, second sealing plate is moved downward out in second water inlet, institute
State the second water inlet opening；
In the lower agretope, first sealing plate is connected on second water inlet to close second water inlet
Mouthful.
2. efficient waste water pumping device according to claim 1, it is characterised in that first water inlet have it is multiple,
Multiple first water inlets are distributed in the different height in the water storage cavity side wall.
3. efficient waste water pumping device according to claim 1, it is characterised in that first filter is a circular arc
Shape plate, multiple first filter bores are provided with first filter, multiple second filterings are provided with second filter
Hole, the aperture of second filter bores are less than the aperture of the first filter bores.
4. efficient waste water pumping device according to claim 1, it is characterised in that the guide chute is arranged on described
Water storage cavity bosom position, the guide chute are fixed on the madial wall of the water storage cavity by cross bar.
5. efficient waste water pumping device according to claim 1, it is characterised in that second water inlet is logical for water inlet
Road, the water inlet end of the intake tunnel and water side are circular arc, are correspondingly set on first sealing plate and the second sealing plate
It is equipped with the sealing of arc-shaped.
6. efficient waste water pumping device according to claim 1, it is characterised in that the buoyant spheres have two, two
The buoyant spheres are separately positioned between the lateral wall of the water storage cavity and the tank madial wall, and the buoyant spheres pass through company
Extension bar is connected with the guide rod.
7. efficient waste water pumping device according to claim 2, it is characterised in that the gag lever post limits on described
During position, the height of the buoyant spheres is more than the height of first water inlet of extreme lower position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711191665.5A CN107875703B (en) | 2017-11-24 | 2017-11-24 | Efficient waste water extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711191665.5A CN107875703B (en) | 2017-11-24 | 2017-11-24 | Efficient waste water extraction device |
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| CN107875703A true CN107875703A (en) | 2018-04-06 |
| CN107875703B CN107875703B (en) | 2023-06-16 |
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| CN201711191665.5A Active CN107875703B (en) | 2017-11-24 | 2017-11-24 | Efficient waste water extraction device |
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