CN105332384A - Super pressure suction joint pumping system and operating method thereof - Google Patents
Super pressure suction joint pumping system and operating method thereof Download PDFInfo
- Publication number
- CN105332384A CN105332384A CN201510865882.2A CN201510865882A CN105332384A CN 105332384 A CN105332384 A CN 105332384A CN 201510865882 A CN201510865882 A CN 201510865882A CN 105332384 A CN105332384 A CN 105332384A
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- water
- well
- drinking
- pumping system
- tube
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
Abstract
The invention discloses a super pressure suction joint pumping system and an operating method thereof. The pumping system comprises a rainfall tube well, a vacuum pump and an air compressor, wherein the vacuum pump and the air compressor are located outside the rainfall tube well; pumping pipes of the vacuum pump are connected to the inside of the bottom of the rainfall tube well; air compressor pipes of the air compressor are connected to the inside of the rainfall tube well and communicated with the pumping pipes; an exhaust tube is fixed to a well lid of the rainfall tube well; one port of the exhaust tube is formed in the upper portion of the rainfall tube well, the other end of the exhaust tube is located outside the rainfall tube well and split to two branch tubes, one branch tube is provided with a valve A and communicated with the pumping pipes, and the other branch tube is provided with a valve B and communicated with the air compressor pipes. The super pressure suction joint pumping system and the operating method thereof have the advantages that the structure is simple; all mechanical devices are disposed outside the well; installation is convenient and fast; the cost is low; one set of pumping system can drive six to twelve rainfall tube wells at the same time, and the water collecting efficiency and the pumping efficiency of the rainfall tube well can be effectively improved.
Description
Technical field
The invention belongs to deep-well pumping technical field, be specifically related to a kind of super pressure and inhale associating pumping system and method for work thereof.
Background technology
Along with the rise of urban skyscraper and the development of underground railway, create a large amount of deep-foundation pit engineerings.If constructed, regional groundwater table is higher, excavation of foundation pit will relate to the impact of underground water on foundation pit construction, for ensureing the safety and stability of foundation pit supporting construction system, ensure carrying out smoothly of base pit engineering excavation construction and normally carrying out of underground main structure construction simultaneously, the measure of dewatering need be taked.
Traditional deep foundation pit precipitation equipment comprises vacuum pump, submersible pump and deep-well chimney filter etc., and usual a bite well configures a submersible pump, and submersible pump is often placed in below WIH face, and the increase along with the well point degree of depth is drawn water and become more and more difficult.This technology equipment investment in early stage is many, and no matter be install, check or safeguard in running, cost of labor is very high, and efficiency of drawing water is unsatisfactory, and service life of equipment is short.
Patent ZL200520047130.7(Special equipment for basic pit deep weel well-points dewatering), ZL200610024254.2(vacuum foundation-pit deep-well precipitation apparatus) and ZL201420570569.7(foundation ditch negative pressure air jet deep-well precipitation device) in, aperture is equipped with in " vacuum distributive pipe " lower end, need the relative position repeatedly adjusting this aperture and groundwater table according to groundwater table in practice of construction process, need to consume a large amount of manpower.
And at patent ZL200620039852.2(intubation type) avoid the problems referred to above, but pipe well vacuumizes that efficiency is lower, effect is poor, and poor for the deep-well applicability more than more than 10m.
Although above-mentioned four technology are improved traditional precipitation pipe well, but still the deficiency that existence one is common: namely on the well lid of precipitation pipe well, all leave air-vent, therefore limited vacuum can only be formed in precipitation pipe well, very low to soil layer its water collection efficiency poor with permeability.
Summary of the invention
The object of the invention is according to above-mentioned the deficiencies in the prior art part, a kind of super pressure is provided to inhale associating pumping system and method for work thereof, this pumping system by the aboveground exhaust tube being communicated with air-pressure tube with drinking-water pipe respectively set up of downcomer, to realize vacuumizing precipitation pipe well or the different objects of supercharging.
The object of the invention realizes being completed by following technical scheme:
A kind of super pressure inhales associating pumping system, it is characterized in that described pumping system comprises precipitation pipe well and is positioned at vacuum pump and the air compressor of described precipitation pipe well outside, the drinking-water pipe of described vacuum pump accesses described downcomer bottom, and the air-pressure tube of described air compressor to access among described precipitation pipe well and is communicated with described drinking-water pipe; The well lid of described precipitation pipe well is fixed with an exhaust tube, described exhaust tube Single port is positioned at the aboveground portion of described downcomer, the other end is positioned at outside described precipitation pipe well and bifurcated is two arms, wherein a described arm be provided with valve A and be communicated with described drinking-water pipe, another described arm be provided with valve B and be communicated with described air-pressure tube.
Described vacuum pump is connected with condensate correcting-distribuing device through the house steward that draws water, and described condensate correcting-distribuing device is connected some described drinking-water pipes.
Described air compressor is connected with steam separator through a pneumatics house steward, and described steam separator is connected some described air-pressure tubes, described steam separator is connected with a tdm controller.
Described drinking-water pipe water inlet is provided with one-way cock.
Described air-pressure tube is connected and is entered in described drinking-water pipe and coaxially arrange with described drinking-water pipe, and described air-pressure tube connects the adjustable length in described drinking-water pipe.
Relate to the method for work that the super pressure of above-mentioned any one inhales associating pumping system, it is characterized in that described method of work comprises the steps: to start described vacuum pump and described air compressor carries out drawing water operation; When described precipitation pipe well water collection efficiency lower than draw water efficiency time, Open valve A, valve-off B, described exhaust tube is communicated with described drinking-water pipe, described drinking-water pipe draws water under described vacuum pump drives, simultaneously, described exhaust tube vacuumizes described precipitation pipe well, to improve the water collection efficiency of described precipitation pipe well under described vacuum pump drives; When the water collection efficiency of described precipitation pipe well is identical with efficiency of drawing water, valve-off A and B; When described precipitation pipe well water collection efficiency higher than draw water efficiency time, valve-off A, Open valve B, described exhaust tube is communicated with described air-pressure tube, described drinking-water pipe draws water under described vacuum pump drives, described exhaust tube forms the malleation to the water surface, to improve the efficiency of drawing water of described precipitation pipe well to described precipitation pipe well conveying gas under described air compressor drives.
Advantage of the present invention is, structure is simple, and plant equipment is all placed in outside well, and it is convenient to install, and cost is low, and a set of pumping system can drive 6-12 mouth precipitation pipe well simultaneously, effectively can promote the water collection efficiency of precipitation pipe well and efficiency of drawing water.
Accompanying drawing explanation
Fig. 1 is that the super pressure in the embodiment of the present invention 1 inhales associating pumping system schematic diagram;
Fig. 2 is that the super pressure in the embodiment of the present invention 2 inhales associating pumping system schematic diagram.
Detailed description of the invention
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technician of the same trade:
Be respectively as marked 1-14 in Fig. 1-2, figure: vacuum pump 1, the house steward 2 that draws water, condensate correcting-distribuing device 3, drinking-water pipe 4, air-pressure tube 5, steam separator 6, tdm controller 7, pneumatics house steward 8, air compressor 9, exhaust tube 10, well lid 11, precipitation pipe well 12, filter opening 13, one way valve 14, valve A, valve B.
Embodiment 1: as shown in Figure 1, the present embodiment is specifically related to a kind of super pressure and inhales associating pumping system and method for work thereof, and this pumping system mainly comprises precipitation pipe well 12, vacuum pump 1 and air compressor 9.
Precipitation pipe well 12 is embedded in underground, and its upper port is basseted a little, and precipitation pipe well 12 needs to be provided with some filter openings 13 or gap, to enter the passage of precipitation pipe well 12 as underground water its pipe shaft differing heights position is spaced apart according to the precipitation of Different Strata; Well lid 11 is connected and sealed with the upper port of precipitation pipe well 12, ensures the operating efficiency of pipe well; Well lid 11 is also reserved with the connected entrance run through for drinking-water pipe 4, air-pressure tube 5 and exhaust tube 10.
Vacuum pump 1 is positioned on the ground outside precipitation pipe well 12, water-band can be gone out while air-breathing.Vacuum pump 1 is connected with the house steward 2 that draws water, and the house steward 2 that draws water is connected with some drinking-water pipes 4 by condensate correcting-distribuing device 3, can be communicated with work with some precipitation pipe wells 12; Drinking-water pipe 4 to run through on well lid 11 in the connected entrance access precipitation pipe well 12 reserved, the lower end water inlet of drinking-water pipe 4 is positioned at below liquid level near precipitation pipe well 12 basal surface position place; It should be noted that, the lower end water inlet of drinking-water pipe 4 is provided with an one way valve 14, and this one way valve 14, in order to ensure on current direction, avoids the generation of backflow phenomenon.
Air compressor 9 is positioned on the ground outside precipitation pipe well 12, for air feed.Air compressor 9 is connected with pneumatics house steward 8, pneumatics house steward 8 is connected with some air-pressure tubes 5 by steam separator 6, in addition, steam separator 6 is also connected with tdm controller 7, and tdm controller 7 can set service life and the intermittent time of each air-pressure tube 5 according to the height of the diameter of precipitation pipe well 12, pipe well middle water level, the around factor such as transmission coefficient, aquifer character of soil layer; Control steam separator 6 by tdm controller 7, thus it is many that air compressor 9 can be with one, the reasonable distribution working time, makes air compressor 9 reach maximum efficiency; Air-pressure tube 5 to run through on well lid 11 be communicated with drinking-water pipe 4 in the connected entrance access precipitation pipe well 12 reserved, connected entrance is positioned at the top of the lower end water inlet of drinking-water pipe 4, air compressor 9 produce pressure-air and drinking-water pipe 4 in water be mixed to form air-water mixture, thus reduce the proportion of mixture, reduce back pressure, enable underground water increase fast, thus reach the object improving efficiency of drawing water.
In addition, the well lid 11 of precipitation pipe well 12 is also provided with an exhaust tube 10, in the lower port access precipitation pipe well 12 of this exhaust tube 10, also protrudes from the soffit of well lid 11 downwards; The upper end of exhaust tube 10 is positioned at outside precipitation pipe well 12 and close well lid 11 position, and bifurcated is two arms, wherein an arm is provided with valve A and is connected with drinking-water pipe 4, another arm be provided with valve B and be connected with air-pressure tube 5.
As shown in Figure 1, the method for work that the super pressure in the present embodiment inhales associating pumping system comprises the following step:
(1) the valve A on exhaust tube 10 and valve B is closed, open vacuum pump 1 and air compressor 9, vacuum pump 1 draws water in drinking-water pipe 4 pairs of precipitation pipe wells 12, the compressed air that air compressor 9 produces enters in drinking-water pipe 4 through air-pressure tube 5 and forms gas-vapor mix, thus reduce the proportion of gas-vapor mix, reduce back pressure, enable underground water increase fast in drinking-water pipe 4, increase the service efficiency of pumping system and the applicable degree of depth;
(2) when needs extract water table aquifer, poor permeability, underground water in the soil layer that water yield is few, and water level is relatively low in precipitation pipe well 12, water collection efficiency is low and the situation that efficiency of drawing water is high time, valve-off B Open valve A, now exhaust tube 10 is communicated with drinking-water pipe 4, draw water in drinking-water pipe 4 pairs of precipitation pipe wells 12, meanwhile, air in exhaust tube 10 pairs of precipitation pipe wells 12 vacuumizes, the water surface in precipitation pipe well 12 is made to form negative pressure, the water accelerated in surrounding formation (stratum that especially permeability is little) is flowed in precipitation pipe well 12 endlessly, thus reach the object improving precipitation pipe well 12 water collection efficiency,
(3) during underground water when needing to extract that artesian aquifer, artesian head are higher, in the soil layer of good penetrability, Fu Shui, valve-off A Open valve B, exhaust tube 10 is communicated with air-pressure tube 5, now " exhaust tube " becomes " air inlet pipe ", air compressor passes through exhaust tube 10 to ullage conveying high-pressure air in precipitation pipe well 12, form malleation at precipitation pipe well 12 water surface, improve and pressure differential in drinking-water pipe 4 between air-water mixture, thus reach the object improving precipitation efficiency.
The beneficial effect of the present embodiment is: vacuumize while taking out precipitation, and vacuum is high than existing methods, and the pumpdown time is long, and precipitation pipe well water collection efficiency can improve about 10%; Adopt timesharing air feed control system, be both conducive to improving vacuum in precipitation pipe well, and air compressor can also have been reduced to initial air pressure requirement, make separate unit air compressor machine can drive more precipitation pipe well; Adopt air compressor to provide pressure-air, not only can improve precipitation pipe well internal gas pressure, can also form air-water mixture to reduce proportion, to reduce back pressure with the water in drinking-water pipe, thus improve pressure differential, efficiency of drawing water comparatively conventional method can improve more than 50%; A set of pumping system in the present embodiment can drive 6-12 mouth precipitation pipe well simultaneously, compared with conventional method, saves the input of a large amount of submersible pump equipment, cost-saving more than 50%; Plant equipment is all placed in outside well, installs border, is easy to operation, easy access and maintenance, and the application life extending equipment; This pumping system is applied widely, applicable equally more containing silt in water, water proportion is larger.
Embodiment 2: as shown in Figure 2, the present embodiment is specifically related to a kind of super pressure and inhales associating pumping system, in this pumping system and embodiment 1, the difference of pumping system is that air-pressure tube 5 and drinking-water pipe 4 adopt the concentric mode arranged, be specially: outside precipitation pipe well 12, air-pressure tube 5 and drinking-water pipe 4 are connected and stretch among drinking-water pipe 4, both are coaxial is arranged, the lower port of air-pressure tube 5 stretches to one way valve 14 position near drinking-water pipe 4, it should be noted that, air-pressure tube 5 stretches into depth adjustable in drinking-water pipe 4.
When pumping system works, according to the result circumferentially descending water level observation well to observe, the built-in length of air-pressure tube 4 can be adjusted at any time, to change the position of air-pressure tube 4 lower port, avoid water-head excessive and increase the initial pressure of air compressor 9, thus improving effect.
In this enforcement, all the other structures of pumping system and method for work are all same as described in embodiment 1, do not repeat them here.
Claims (6)
1. a super pressure inhales associating pumping system, it is characterized in that described pumping system comprises precipitation pipe well and is positioned at vacuum pump and the air compressor of described precipitation pipe well outside, the drinking-water pipe of described vacuum pump accesses described downcomer bottom, and the air-pressure tube of described air compressor to access among described precipitation pipe well and is communicated with described drinking-water pipe; The well lid of described precipitation pipe well is fixed with an exhaust tube, described exhaust tube Single port is positioned at the aboveground portion of described downcomer, the other end is positioned at outside described precipitation pipe well and bifurcated is two arms, wherein a described arm be provided with valve A and be communicated with described drinking-water pipe, another described arm be provided with valve B and be communicated with described air-pressure tube.
2. the super pressure of one according to claim 1 inhales associating pumping system, and it is characterized in that described vacuum pump is connected with condensate correcting-distribuing device through the house steward that draws water, on described condensate correcting-distribuing device, connection has some described drinking-water pipes.
3. the super pressure of one according to claim 1 inhales associating pumping system, it is characterized in that described air compressor is connected with steam separator through a pneumatics house steward, described steam separator is connected and has some described air-pressure tubes, described steam separator is connected with a tdm controller.
4. the super pressure of one according to claim 1 inhales associating pumping system, it is characterized in that described drinking-water pipe water inlet is provided with one-way cock.
5. the super pressure of one according to claim 1 inhales associating pumping system, and it is characterized in that described air-pressure tube is connected and enter in described drinking-water pipe and coaxially arrange with described drinking-water pipe, described air-pressure tube connects the adjustable length in described drinking-water pipe.
6. the super pressure related to according to any one of claim 1-5 inhales a method of work for associating pumping system, it is characterized in that described method of work comprises the steps: to start described vacuum pump and described air compressor carries out drawing water operation; When described precipitation pipe well water collection efficiency lower than draw water efficiency time, Open valve A, valve-off B, described exhaust tube is communicated with described drinking-water pipe, described drinking-water pipe draws water under described vacuum pump drives, simultaneously, described exhaust tube vacuumizes described precipitation pipe well, to improve the water collection efficiency of described precipitation pipe well under described vacuum pump drives; When the water collection efficiency of described precipitation pipe well is identical with efficiency of drawing water, valve-off A and B; When described precipitation pipe well water collection efficiency higher than draw water efficiency time, valve-off A, Open valve B, described exhaust tube is communicated with described air-pressure tube, described drinking-water pipe draws water under described vacuum pump drives, described exhaust tube forms the malleation to the water surface, to improve the efficiency of drawing water of described precipitation pipe well to described precipitation pipe well conveying gas under described air compressor drives.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510865882.2A CN105332384B (en) | 2015-11-27 | 2015-11-27 | Super pressure inhales joint pumping system and its method of work |
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| CN201510865882.2A CN105332384B (en) | 2015-11-27 | 2015-11-27 | Super pressure inhales joint pumping system and its method of work |
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| CN105332384A true CN105332384A (en) | 2016-02-17 |
| CN105332384B CN105332384B (en) | 2017-10-31 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106320353A (en) * | 2016-07-18 | 2017-01-11 | 中天建设集团有限公司 | Basement construction dewatering and drainage device and construction method thereof |
| CN106498963A (en) * | 2016-11-29 | 2017-03-15 | 江苏卓典钻掘科技有限公司 | A kind of tube well dewatering system that is drawn water using air compressor machine and water pump concentration |
| CN106759410A (en) * | 2017-02-22 | 2017-05-31 | 上海广联环境岩土工程股份有限公司 | Gas is tended towards superiority lift vacuum-dewatering device and method |
| CN111335344A (en) * | 2020-03-19 | 2020-06-26 | 中铁六局集团有限公司 | Super pressure suction combined well point dewatering construction method for subway deep foundation pit |
| CN112252347A (en) * | 2020-11-06 | 2021-01-22 | 上海渊丰地下工程技术有限公司 | Deep well dewatering device and operation method thereof |
| CN112281884A (en) * | 2020-11-06 | 2021-01-29 | 上海渊丰地下工程技术有限公司 | Well point dewatering device and operation method thereof |
| CN112281883A (en) * | 2020-11-06 | 2021-01-29 | 上海渊丰地下工程技术有限公司 | Precipitation system and operation method thereof |
| CN113026786A (en) * | 2021-05-25 | 2021-06-25 | 上海建工集团股份有限公司 | Air pressure circulating type precipitation monitoring method |
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| CN202450537U (en) * | 2012-03-06 | 2012-09-26 | 新蒲建设集团有限公司 | Composite dewatering device of vacuum tube well |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320353A (en) * | 2016-07-18 | 2017-01-11 | 中天建设集团有限公司 | Basement construction dewatering and drainage device and construction method thereof |
| CN106320353B (en) * | 2016-07-18 | 2019-07-23 | 中天建设集团有限公司 | A kind of construction method of basement construction Yield rainfall relation device |
| CN106498963A (en) * | 2016-11-29 | 2017-03-15 | 江苏卓典钻掘科技有限公司 | A kind of tube well dewatering system that is drawn water using air compressor machine and water pump concentration |
| CN106498963B (en) * | 2016-11-29 | 2019-01-22 | 江苏卓典钻掘科技有限公司 | It is a kind of that the tube well dewatering system drawn water is concentrated using air compressor machine and water pump |
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| CN111335344A (en) * | 2020-03-19 | 2020-06-26 | 中铁六局集团有限公司 | Super pressure suction combined well point dewatering construction method for subway deep foundation pit |
| CN112252347A (en) * | 2020-11-06 | 2021-01-22 | 上海渊丰地下工程技术有限公司 | Deep well dewatering device and operation method thereof |
| CN112281884A (en) * | 2020-11-06 | 2021-01-29 | 上海渊丰地下工程技术有限公司 | Well point dewatering device and operation method thereof |
| CN112281883A (en) * | 2020-11-06 | 2021-01-29 | 上海渊丰地下工程技术有限公司 | Precipitation system and operation method thereof |
| CN112281883B (en) * | 2020-11-06 | 2022-03-11 | 上海渊丰地下工程技术有限公司 | Precipitation system and operation method thereof |
| CN113026786A (en) * | 2021-05-25 | 2021-06-25 | 上海建工集团股份有限公司 | Air pressure circulating type precipitation monitoring method |
| CN113026786B (en) * | 2021-05-25 | 2021-08-10 | 上海建工集团股份有限公司 | Air pressure circulating type precipitation monitoring method |
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