CN207032270U - Catch pit immersible pump precipitation system - Google Patents

Catch pit immersible pump precipitation system Download PDF

Info

Publication number
CN207032270U
CN207032270U CN201720994774.XU CN201720994774U CN207032270U CN 207032270 U CN207032270 U CN 207032270U CN 201720994774 U CN201720994774 U CN 201720994774U CN 207032270 U CN207032270 U CN 207032270U
Authority
CN
China
Prior art keywords
pipeline
pump
immersible pump
pipe
catch pit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720994774.XU
Other languages
Chinese (zh)
Inventor
孙洪岩
肖大祥
褚既武
付亚
吴若麟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU HUADU CONSTRUCTION CO Ltd
Original Assignee
JIANGSU HUADU CONSTRUCTION CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU HUADU CONSTRUCTION CO Ltd filed Critical JIANGSU HUADU CONSTRUCTION CO Ltd
Priority to CN201720994774.XU priority Critical patent/CN207032270U/en
Application granted granted Critical
Publication of CN207032270U publication Critical patent/CN207032270U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The utility model discloses a kind of catch pit immersible pump precipitation system, belong to technical field of building construction, its drip irrigation device is:Immersible pump including being arranged on pipe well shaft bottom, booster pump is provided with the well head of pipe well, the delivery port of booster pump is connected with outlet conduit, the delivery port of immersible pump extends to the well head of pipe well by the first pipeline, first pipeline is connected by the water inlet of second pipe and booster pump, the water inlet of immersible pump is connected with the 3rd pipeline, flow increasing pipeline is communicated with first pipeline, suction pump is connected with the other end of flow increasing pipeline, suction pump is connected by the 4th pipeline with second pipe, side wall of first pipeline close to immersible pump one end is provided with liquid level sensor, liquid level sensor is connected with the PLC control modules for controlling the pump work that draws water, the valve controlled by PLC control modules is equipped with flow increasing pipeline and the 4th pipeline;The utility model has the advantages that the efficiency of drawing water for improving catch pit immersible pump precipitation system of intelligence, improves the displacement of pipe well.

Description

Catch pit immersible pump precipitation system
Technical field
Technical field of building construction is the utility model is related to, more particularly to a kind of catch pit immersible pump precipitation system.
Background technology
The sub-surface that underground engineering must be excavated to needs first in work progress carries out operation of drawing water, and excludes to wait out The moisture content in the earthwork in region is dug, makes to be mined the earthwork and be in relatively dry state, is just easy to the smooth excavation of the earthwork, even if digging Still need to persistently carry out operation of drawing water after pick to desired depth, underground static state water level is in below construction earth's surface compared with low water level, Casting and solidifying for concrete floor can be carried out, prevents level of ground water too high and bottom plate is caused to extrude, destroyed.Existing construction operation In, it is necessary to several draining deep-wells are got in compartment of terrain in region to be excavated, form gang of wells, are installed respectively in every mouthful of deep-well Immersible pump, uninterruptedly synchronously draw water, so as to control underground static state water level, it is ensured that the relatively dry of the following soil property in region to be excavated, Prevent from caving in work progress, cause casualties, increase difficulty of construction.
Chinese patent notification number CN204590052U patent discloses a kind of deep catch pit dewatering device, and its structure is base Hole is provided centrally with brick catch pit, and the top surface of brick catch pit is provided with steel plate annulus, and brick catch pit is lined with drainage Layer, steel plate annulus top are provided with concrete cushion, are enclosed in drainage layer and be provided with protective cover, protective cover lumen centers are provided with latent Water pump, the top of immersible pump are connected with lower well point steel pipe, in being provided with sealing on the lower well point steel pipe of the top of concrete cushion Piece, the top of lower well point steel pipe are provided with switch valve, and switch valve top is provided with detachable connector, set above detachable connector There is check-valves, well point steel pipe is provided with above check-valves, waterproof layer is provided with above concrete cushion.But this precipitation dress Put often because the height of pipe well is higher, the lift of immersible pump not enough causes the underfed of immersible pump, so as to influence pipe well Displacement, and finally influence foundation ditch underground water drawdown.
Utility model content
The purpose of this utility model is to provide a kind of catch pit immersible pump precipitation system, the advantage is that:When immersible pump by In lift not enough and when causing the underfed of immersible pump quickly to discharge the underground water in pipe well, can the opening of intelligence take out Water pump, flow is improved, so as to quickly discharge the underground water in pipe well.
Above-mentioned technical purpose of the present utility model technical scheme is that:A kind of catch pit diving Pump precipitation system, including pipe well and the immersible pump for being arranged on pipe well shaft bottom, booster pump is provided with the well head of the pipe well, it is described The delivery port of booster pump is connected with outlet conduit, and the delivery port of the immersible pump extends to the well head of pipe well by the first pipeline, First pipeline is connected by the water inlet of second pipe and booster pump, and the water inlet of the immersible pump is connected with the 3rd pipe Road, flow increasing pipeline is communicated with first pipeline, the described one end of flow increasing pipeline away from the first pipeline is connected with suction pump, institute State suction pump to connect with second pipe by the 4th pipeline, side wall of first pipeline close to immersible pump one end is provided with liquid level Sensor, the liquid level sensor are connected with the PLC control modules of control diving pump work, the flow increasing pipeline and the 4th pipeline Inside it is equipped with the valve controlled by PLC control modules.
By such scheme, when catch pit immersible pump precipitation system works, immersible pump is taken out to the water in pipe well first Take, the water in pipe well passes sequentially through the 3rd pipeline, the first pipeline and second pipe, is then conveyed again by booster pump, by going out Waterpipe is discharged, and now liquid level sensor works, and detects the water level in pipe well, and PLC control modules then pass through the unit of account time The height of interior water level decreasing draws drawdown rate of water level, if not reaching preset value, PLC control modules control flow increasing pipeline and Valve in 4th pipeline is opened, and now PLC control modules control the pump work that draws water, and extracts the water in the first pipeline so that water By being delivered in flow increasing pipeline and the 4th pipeline in second pipe.So as to not enough cause the stream of immersible pump when diving pump lift When measuring deficiency and causing the displacement deficiency in pipe well, the effect of drawing water of raising catch pit immersible pump precipitation system that can be intelligent Rate, improve the displacement of pipe well.
Further, the flow increasing pipeline is provided with close to one end of suction pump is used to stablize suction pump position in pipe well Stabilising arrangement, the 3rd pipe level are set, and the 5th downward pipeline of outlet is connected with the 3rd pipe side wall, described 5th pipeline and the 3rd pipeline communication, the described one end of 5th pipeline away from the 3rd pipeline are provided with filter.
By such scheme, stabilising arrangement can play a supporting role to suction pump, so as to reduce suction pump Shaken caused by work, improve the stability of system;5th pipeline can then cause immersible pump to extract the water below water inlet, Filter can then reduce the entrance of shaft bottom mudstone, improve the life-span of immersible pump.
Further, the stabilising arrangement includes being fixedly connected on flow increasing pipe side wall and contradicted with suction pump bottom Loading plate, the loading plate are evenly equipped with some bracing pieces away from the side of suction pump, and one end of the bracing piece is fixed on carrying On plate, the other end is fixed on the tube wall of flow increasing pipeline.
By such scheme, loading plate can play a supporting role to suction pump, and the bracing piece below loading plate The stability of loading plate on the pressure dissipation on loading plate to bracing piece, can will be then improved, and then improves the stability of system.
Further, the filter includes the cylinder for being threaded in the 5th pipe outlet, is connected in the cylinder There is the filtering wire netting of covering cylinder nozzle.
By such scheme, dive under water pump work when, the water in shaft bottom is entered in the 3rd pipeline by the 5th pipeline, due to the 5th Pipe outlet is against shaft bottom, and so as to make it that the negative pressure in shaft bottom is larger, the fragmentary mudstone in shaft bottom can be towards the outlet of the 5th pipeline Mobile, filtering wire netting can then reduce the possibility that mudstone enters immersible pump by the 5th pipeline and the 3rd pipeline, so as to extend The service life of immersible pump.
Further, the entrance of the 5th pipeline is provided with enlarging.
By such scheme, because filter can reduce the flow velocity in the exit of the 5th pipeline, enlarging is set to carry Inflow at high 5th conduit entrance, so as to improve efficiency of drawing water.
Further, the flow increasing pipeline is connected with support bar in the side wall of suction pump, and the support bar is vertically set Put, the one end of the support bar away from suction pump is connected with supporting plate, and bottom surface and the shaft bottom of the supporting plate contradict.
By such scheme, support bar can play a supporting role to flow increasing pipeline, so as to reduce flow increasing pipeline length The trend of caused deformation downwards after phase use.
Further, the bottom surface of the supporting plate is provided with some spines, when immersible pump is positioned over shaft bottom, the spine It is pierced into shaft bottom.
By such scheme, the spine on supporting plate ground can cause supporting plate nail in shaft bottom, reduction supporting plate movement Trend.
Further, the 4th pipeline is bent close to one end of second pipe towards water (flow) direction when drawing water, described Angle between 4th pipeline and second pipe is not more than 30 degree.
By such scheme, water from the 5th pipeline flow out when, the 5th pipeline is close to one end of second pipe towards when drawing water Water (flow) direction bending, current can be reduced in the 5th pipeline to the impact in the vertical direction of current in second pipe, so as to Influence of the 5th pipeline to flow rate of water flow in second pipe can be reduced, improve drainage efficiency.
Further, the one end of the outlet conduit away from booster pump is communicated with filtering ponds.
By such scheme, the water extracted in pipe well may finally be flowed into filtering ponds by outlet conduit, so as to realize Recoverable.
Further, first pipeline is covered with protective cover outside liquid level sensor, and the bottom of the protective cover opens up There is an inlet opening.
By such scheme, when the mudstone of pipe well inwall drops, it is possible to liquid level sensor can be pounded, so as to be caused to it Damage, protective cover can reduce the possibility of mudstone damage liquid level sensor, and the inlet opening of protective cover bottom then ensure that liquid level passes Sensor can accurately detect hydraulic pressure.
To sum up, the utility model has the advantages that:
1st, when the displacement deficiency of pipe well, suction pump can the raising catch pit immersible pump precipitation system of intelligence draw water Efficiency, so as to improve the displacement of pipe well;
2nd, filtering wire netting can reduce the possibility that mudstone enters immersible pump by the 5th pipeline and the 3rd pipeline, so as to prolong The service life of immersible pump is grown.
Brief description of the drawings
Fig. 1 is the structural representation that the present embodiment is used to embody immersible pump;
Fig. 2 is the structural representation that the present embodiment is used to embody suction pump;
Fig. 3 is the structural representation that the present embodiment is used to embody filter;
Fig. 4 is the structural representation that the present embodiment is used to embody liquid level sensor.
In figure, 1, pipe well;2nd, immersible pump;3rd, booster pump;31st, outlet conduit;4th, the first pipeline;5th, second pipe;6th, Three pipelines;7th, flow increasing pipeline;8th, suction pump;9th, the 4th pipeline;10th, liquid level sensor;11st, valve;12nd, the 5th pipeline;121、 Cylinder;122nd, wire netting is filtered;123rd, enlarging;13rd, loading plate;131st, bracing piece;14th, support bar;141st, supporting plate;142nd, it is sharp Thorn;15th, filtering ponds;16th, protective cover;161st, inlet opening.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Wherein identical parts are presented with like reference characters.It should be noted that the word used below in description Language "front", "rear", "left", "right", "up" and "down" refer to the direction in accompanying drawing, word " bottom surface " and " top surface ", " interior " and " outer " is referred respectively to towards or away from the direction of particular elements geometric center.
A kind of catch pit immersible pump precipitation system, such as Fig. 1, including pipe well 1 and the immersible pump 2 for being arranged on the shaft bottom of pipe well 1, The water inlet of immersible pump 2 is connected with horizontally disposed 3rd pipeline 6, and the delivery port of immersible pump 2 is connected with the first pipeline 4, and first Pipeline 4 extends to the well head of pipe well 1, and in order to improve the drainage speed of precipitation system, booster pump 3 is additionally provided with the well head of pipe well 1, First pipeline 4 is connected by second pipe 5 with the water inlet of booster pump 3, and the delivery port of booster pump 3 is connected with outlet conduit 31, The one end of outlet conduit 31 away from booster pump 3 is communicated with filtering ponds 15, and when immersible pump 2 works, the water in pipe well 1 passes sequentially through 3rd pipeline 6, the first pipeline 4 and second pipe 5, are finally expelled in filtering ponds 15 from outlet conduit 31, realize recyclable profit With.
Such as Fig. 1 and Fig. 2, cause the underfed of immersible pump 2 when the lift of immersible pump 2 is inadequate, so as to cause precipitation system When the displacement of system does not reach desired value, in order to increase the displacement of precipitation system, the first pipeline 4 is close to the one end of immersible pump 2 Flow increasing pipeline 7 is communicated with side wall, the one end of flow increasing pipeline 7 away from the first pipeline 4 is connected with the water inlet of suction pump 8, drawn water The delivery port of pump 8 is connected with the 4th pipeline 9, and the 4th pipeline 9 connects with second pipe 5, and the 4th pipeline 9 is close to second pipe 5 One end is towards water (flow) direction bending when drawing water, and the angle between the 4th pipeline 9 and second pipe 5 is 30 degree, so may be used , to the impact in the vertical direction of current in second pipe 5, reduce current in the 4th pipeline 9 to reduce current in the 4th pipeline 9 Influence to current in second pipe 5, improve drainage efficiency;When suction pump 8 works, the water in the first pipeline 4 can be led to Cross flow increasing pipeline 7 and extract a part out, be then delivered to by the 4th pipeline 9 in second pipe 5, so as to increase precipitation system Displacement.
Such as Fig. 2 and Fig. 4, for the work of the control suction pump 8 of intelligence, unnecessary energy waste, the first pipeline 4 are avoided Liquid level sensor 10 is fixedly connected with the side wall of the one end of immersible pump 2, liquid level sensor 10 is connected with PLC control modules 101, in order to protect liquid level sensor 10 not damaged by mudstone, the first pipeline 4 is covered with protective cover 16 outside liquid level sensor 10, The bottom of protective cover 16 offers an inlet opening 161 for being easy to liquid level sensor 10 to detect hydraulic pressure;Flow increasing pipeline 7 and the 4th is managed The valve 11 controlled by PLC control modules 101 is equipped with road 9.When immersible pump 2 works, liquid level sensor 10 works and examined Water level in test tube well, PLC control modules 101 then draw water level decreasing by the height of water level decreasing in the unit of account time Speed, if not reaching preset value, PLC control modules 101 control the valve 11 in flow increasing pipeline 7 and the 4th pipeline 9 to open, this When PLC control modules 101 control suction pump 8 to work, so as to improve the displacement of precipitation system.
Such as Fig. 2, in order to improve the stability of suction pump 8 so that the work that precipitation system can be stablized, the side wall of flow increasing pipeline 7 On be fixedly connected with loading plate 13, upper surface and the bottom of suction pump 8 of loading plate 13 contradict, so as to be played to suction pump 8 One supporting role, the lower surface Circle-Array of loading plate 13 show six bracing pieces 131, and one end of bracing piece 131, which is fixed on, holds On the lower surface of support plate 13, the other end is fixed on the tube wall of flow increasing pipeline 7, so as to which bracing piece 131 then can be by loading plate 13 On pressure dissipation on bracing piece 131, improving the stability of loading plate 13, and then improve the stability of system;In order to reduce The caused downward deformation tendency under self gravitation effect when long-time uses of flow increasing pipeline 7, flow increasing pipeline 7 is remote to draw water Vertically disposed support bar 14 is fixedly connected with the side wall of pump 8, support bar 14 is fixedly connected with circle away from one end of suction pump 8 Shape supporting plate 141, the bottom surface of supporting plate 141 are provided with some spines 142, and when immersible pump 2 is positioned over shaft bottom, spine 142 pierces Enter shaft bottom to reduce the trend of the movement of supporting plate 141, the bottom surface of supporting plate 141 is then contradicted on shaft bottom, so that and support bar 14 Collective effect produces a upward bearing capacity to flow increasing pipeline 7, reduces the deformation tendency of flow increasing pipeline 7.
Such as Fig. 1 and Fig. 3, in order that obtaining immersible pump 2 as far as possible can take the water in shaft bottom away, connect in the side wall of the 3rd pipeline 6 The 5th downward pipeline 12 of outlet is connected to, the 5th pipeline 12 connects with the 3rd pipeline 6, and the entrance of the 5th pipeline 12 is provided with and increased The enlarging 123 of big inflow, cylinder 121 is threaded with enlarging 123, covering cylinder 121 is fixedly connected with cylinder 121 The filtering wire netting 122 of mouth, so as to which when immersible pump 2 works, the water in shaft bottom is entered in the 3rd pipeline 6 by the 5th pipeline 12, The now import of the 5th pipeline 12 is against shaft bottom, and so as to make it that the negative pressure in shaft bottom is larger, the fragmentary mudstone in shaft bottom can be towards the 5th The outlet movement of pipeline 12, filtering wire netting 122 can then reduce mudstone and enter diving by the 5th pipeline 12 and the 3rd pipeline 6 The possibility of pump 2, so as to extend the service life of immersible pump 2.
Operating process:When needing to being drawn water in pipe well 1, immersible pump 2 and booster pump 3 first works together so that pipe Water in well 1 is inhaled into immersible pump 2 by the 5th pipeline 12 and the 3rd pipeline 6, then passes through the first pipeline 4 towards second again Pipeline 5 flows, and now booster pump 3 also produces a suction to the current in second pipe 5 so that current accelerate from booster pump 3 Outlet conduit 31 is inside flowed to, is then flowed into by outlet conduit 31 in filtering ponds 15, realizes reusable edible;Now level sensing Device 10 works, if liquid level decrease speed is slower, liquid level sensor 10 controls the pipe of flow increasing pipeline 7 and the 4th by PLC module Valve 11 in road 9 is opened, and now suction pump 8 works, and extracts the water in the first pipeline 4 out a part by flow increasing pipeline 7, so It is delivered to afterwards by the 4th pipeline 9 in second pipe 5, so as to increase the displacement of precipitation system, intelligence is rapidly completed to increase The operation of big displacement, improve the efficiency of drawing water of catch pit immersible pump precipitation system.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Claims (10)

1. a kind of catch pit immersible pump precipitation system, including pipe well(1)And it is arranged on pipe well(1)The immersible pump in shaft bottom(2), its It is characterized in:The pipe well(1)Well head at be provided with booster pump(3), the booster pump(3)Delivery port be connected with outlet conduit (31), the immersible pump(2)Delivery port pass through the first pipeline(4)Extend to pipe well(1)Well head, first pipeline(4) Pass through second pipe(5)With booster pump(3)Water inlet connection, the immersible pump(2)Water inlet be connected with the 3rd pipeline (6), first pipeline(4)On be communicated with flow increasing pipeline(7), the flow increasing pipeline(7)Away from the first pipeline(4)One end On be connected with suction pump(8), the suction pump(8)Pass through the 4th pipeline(9)With second pipe(5)Connection, first pipeline (4)Close to immersible pump(2)The side wall of one end is provided with liquid level sensor(10), the liquid level sensor(10)Control is connected with to take out Water pump(8)The PLC control modules of work(101), the flow increasing pipeline(7)With the 4th pipeline(9)Inside it is equipped with and is controlled mould by PLC Block(101)The valve of control(11).
2. catch pit immersible pump precipitation system according to claim 1, it is characterized in that:The flow increasing pipeline(7)It is close to take out Water pump(8)One end be provided be used for stablize suction pump(8)In pipe well(1)The stabilising arrangement of interior position, the 3rd pipeline(6)Water It is flat to set, the 3rd pipeline(6)The 5th downward pipeline of outlet is connected with side wall(12), the 5th pipeline(12)With Three pipelines(6)Connection, the 5th pipeline(12)Away from the 3rd pipeline(6)One end be provided with filter.
3. catch pit immersible pump precipitation system according to claim 2, it is characterized in that:The stabilising arrangement includes fixed connect It is connected on flow increasing pipeline(7)In side wall and and suction pump(8)The loading plate that bottom contradicts(13), the loading plate(13)Away from drawing water Pump(8)Side be evenly equipped with some bracing pieces(131), the bracing piece(131)One end be fixed on loading plate(13)On, it is another End is fixed on flow increasing pipeline(7)Tube wall on.
4. catch pit immersible pump precipitation system according to claim 2, it is characterized in that:The filter connects including screw thread It is connected on the 5th pipeline(12)The cylinder of outlet(121), the cylinder(121)Inside it is connected with covering cylinder(121)The filtering of nozzle Wire netting(122).
5. catch pit immersible pump precipitation system according to claim 2, it is characterized in that:5th pipeline(12)Import Place is provided with enlarging(123).
6. catch pit immersible pump precipitation system according to claim 1, it is characterized in that:The flow increasing pipeline(7)It is remote to take out Water pump(8)Side wall on be connected with support bar(14), the support bar(14)It is vertically arranged, the support bar(14)Away from drawing water Pump(8)One end be connected with supporting plate(141), the supporting plate(141)Bottom surface and shaft bottom contradict.
7. catch pit immersible pump precipitation system according to claim 6, it is characterized in that:The supporting plate(141)Bottom surface It is provided with some spines(142), work as immersible pump(2)When being positioned over shaft bottom, the spine(142)It is pierced into shaft bottom.
8. catch pit immersible pump precipitation system according to claim 1, it is characterized in that:4th pipeline(9)Close to the Two pipelines(5)One end towards when drawing water water (flow) direction bending, the 4th pipeline(9)With second pipe(5)Between folder Angle is not more than 30 degree.
9. catch pit immersible pump precipitation system according to claim 1, it is characterized in that:The outlet conduit(31)Away from increasing Press pump(3)One end be communicated with filtering ponds(15).
10. catch pit immersible pump precipitation system according to claim 1, it is characterized in that:First pipeline(4)In liquid level Sensor(10)It is covered with protective cover outside(16), the protective cover(16)Bottom offer an inlet opening(161).
CN201720994774.XU 2017-08-09 2017-08-09 Catch pit immersible pump precipitation system Expired - Fee Related CN207032270U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720994774.XU CN207032270U (en) 2017-08-09 2017-08-09 Catch pit immersible pump precipitation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720994774.XU CN207032270U (en) 2017-08-09 2017-08-09 Catch pit immersible pump precipitation system

Publications (1)

Publication Number Publication Date
CN207032270U true CN207032270U (en) 2018-02-23

Family

ID=61474942

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720994774.XU Expired - Fee Related CN207032270U (en) 2017-08-09 2017-08-09 Catch pit immersible pump precipitation system

Country Status (1)

Country Link
CN (1) CN207032270U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114164847A (en) * 2021-11-11 2022-03-11 北京城建集团有限责任公司 Emergency drainage system and method for underground building
CN114859811A (en) * 2022-07-07 2022-08-05 中建安装集团有限公司 PLC-based intelligent water drainage control system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114164847A (en) * 2021-11-11 2022-03-11 北京城建集团有限责任公司 Emergency drainage system and method for underground building
CN114164847B (en) * 2021-11-11 2023-09-15 北京城建集团有限责任公司 Emergency drainage system and method for underground building
CN114859811A (en) * 2022-07-07 2022-08-05 中建安装集团有限公司 PLC-based intelligent water drainage control system and method

Similar Documents

Publication Publication Date Title
CN110410143B (en) Reverse slope tunnel construction drainage system
CN207032270U (en) Catch pit immersible pump precipitation system
JP6338890B2 (en) Water intake equipment
CN106049518B (en) A kind of improved vacuum precipitation system and its control method
CN107386307A (en) Foundation ditch inner structure anti-floating system and its construction method
CN106498962B (en) Shallow underground water collecting and drainage system and construction method
CN106120701B (en) Prepressing structure and method for Perioperative cardiac events blowing-filling sludge epeirogenetic
CN105672349B (en) Prevent the step siphoning installation and method of low water head difference siphon inner air tube accumulation
CN106939610A (en) A kind of integrated precipitation pumping system
CN206721904U (en) A kind of integrated precipitation pumping system
CN206599786U (en) A kind of construction drainage of foundation pit device
CN109555511A (en) A kind of oil well desanding device based under pulsing jet technology and cyclonic separation mechanism
CN206129244U (en) Colliery water resources regionalization is mining system in advance
CN206617167U (en) The ore lifting system and mining system exploited for metal nodule
CN210066795U (en) Foundation pit dewatering device
CN105350593B (en) Dam body upstream face sand discharge dredging method
CN116537236A (en) Civil engineering foundation pit drainage structure and construction method thereof
CN202055248U (en) Pile foundation mud pit
CN207277350U (en) A kind of relief well of deep foundation pit
CN208328963U (en) A kind of polywater water trap for large-scale excavation precipitation
CN203462480U (en) Device for lowering underground water level by using home-made small tube wells
CN102304924B (en) Non-resource-exploitation dewatering construction method and dewatering well
CN105604076A (en) Vacuum pump water-discharging device suitable for tunnel excavation
CN214884049U (en) Efficient medium and low permeability formation fluid exploitation device
RU2556719C1 (en) Field water preparation system for maintenance of seam pressure

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180223

Termination date: 20190809

CF01 Termination of patent right due to non-payment of annual fee