CN201778329U

CN201778329U - Pneumatic type multi-well dewatering system with automatic control function

Info

Publication number: CN201778329U
Application number: CN2010202632732U
Authority: CN
Inventors: 毛喜云; 宋心朋; 李宏军; 苏烨; 张楠
Original assignee: Shanghai Changkai Geotechnical Engineering Co Ltd
Current assignee: Shanghai Changkai Geotechnical Engineering Co Ltd
Priority date: 2010-07-16
Filing date: 2010-07-16
Publication date: 2011-03-30
Anticipated expiration: 2020-07-16

Abstract

The utility model relates to a novel energy-saving pneumatic type multi-well dewatering system with automatic control function, which is used for foundation pit dewatering in architectural engineering. The novel dewatering system comprises air compressors, air pipes, automatic controllers, water pipes, tee joints and air-water mixers; the air-water mixers are positioned at the bottoms of dewatering wells; the automatic controllers are connected in series with one another; and the air-water mixers are also connected in parallel with one another. The automatic controllers are utilized for changing the air pressure in the air-water mixers, and water in the dewatering well flows into the air-water mixers under ordinary pressure, and water in the air-water mixers is discharged through the water pipes under high pressure, so that the purpose that the water is circularly pumped by the conversion of the air pressure in the air-water mixers is realized. As the novel dewatering system integrates the advantages of vacuum pumps and submersible pumps, the dewatering need in deep foundation pit is satisfied, and meanwhile water is pumped by multi-wells by the system, which saves the equipment, and brings enormous economical benefits.

Description

Pneumatic type is many wells of control precipitation system automatically

Technical field

The utility model relates to a cover novel energy-conserving pneumatic type many wells of control precipitation system automatically, is used for architectural engineering pit precipitation.

Background technology

In foundation pit dewatering, in the excavation of foundation pit degree of depth 5～6m, generally adopt vacuum pump to draw water at present, the degree of depth is drawn water above the general deep well submerged pump that adopts in the foundation pit dewatering project of 6m.The advantage that vacuum pump draws water is that a vacuum pump can be organized the well point more and works simultaneously (main resource set in use), and shortcoming is that its pumpage is limit by vacuum, and the degree of depth of drawing water is limited, after foundation depth reaches certain limitation, can't satisfy the requirement of drawing water.At present, the advantage of deep well submerged pump is to have reliable pumping head, can effectively satisfy the drawdown demand, and precipitation depth is bigger, but a submersible pump can only satisfy the work of a bite well, and water pump is perishable in the underwater for a long time, and coefficient of losses is big.

Continuous development along with urban underground space, deep-foundation pit engineering is more and more, its excavation area is increasing, the more and more darker vacuum pump precipitation apparatus under this background of cutting depth is not because the defective of itself satisfies the requirement of deep foundation pit precipitation, though submersible pump satisfies the precipitation technical requirements, resource utilization is low, particularly in the super large deep foundation ditch, submersible pump demand and coefficient of losses are big, and its business efficiency is low.

The utility model content

The purpose of this utility model provides and a kind ofly can satisfy the deep foundation pit precipitation needs, can utilize this system to carry out automatic many wells of control precipitation system that many wells draw water again simultaneously.

In order to achieve the above object, many wells of the automatic control of a kind of pneumatic type of the utility model precipitation system comprises:

N automatic controller, N 〉=2, each automatic controller comprises the time relay and solenoid operated directional valve, series connection mutually between the described automatic controller;

One air compressor, described air compressor is communicated with automatic controller by tracheae;

N+1 gas-water mixer, described gas-water mixer places the bottom of precipitation well, and each gas-water mixer comprises air inlet, outlet pipe, inlet opening, on outlet pipe and the inlet opening one way valve is housed, and is parallel with one another between the described gas-water mixer.

Preferably, described outlet pipe is pooled on the water pipe by threeway.

Many wells of control precipitation system operating principle is as follows automatically for the utility model pneumatic type: utilize the time relay control solenoid operated directional valve in the automatic controller, reach the purpose of gas-water mixer being carried high pressure gas or exhaust decompression, water body flowed into pneumatic discharge casing in the inherent normal pressure of pneumatic water trap was gone into the well, under high pressure then in the case water body discharge by water pipe, the conversion by the case internal gas pressure reaches the purpose that circulation is drawn water.In many wells pumping system, lay a gas-water mixer in every mouthful of well, a plurality of gas-water mixers are connected in parallel, and utilize automatic controller to control air pressure in the different gas-water mixers, and then reach the purpose that many wells move one by one.

The utility model makes it compared with prior art owing to adopted above-mentioned technical scheme, has following advantage and good effect:

The utility model provides a kind of deep-well pumping system of automation at existing precipitation technical deficiency, it relies on gases at high pressure " to blow " water, changed the traditional method that leans on vacuum pump " suction " water in the past or " raise " water by submersible pump, because have the advantage of vacuum pump and submersible pump simultaneously, can satisfy the deep foundation pit precipitation needs, simultaneously can utilize this system to carry out many wells again and draw water, saving equipment has huge economic benefit.

Description of drawings

To embodiment of the present utility model and in conjunction with the description of its accompanying drawing, can further understand the purpose of this utility model, specific structural features and advantage by following.Wherein, accompanying drawing is:

Fig. 1 is a structural representation of the present utility model.

The specific embodiment

With specific embodiment the utility model is further described below.

As shown in Figure 1, three automatic controllers 3 are connected mutually, and each automatic controller 3 is formed by the time relay 3.1 and solenoid operated directional valve 3.2, and the time relay is controlled corresponding solenoid operated directional valve 3.2 respectively independently.Four gas-water mixers 4 are put into corresponding four precipitation wells 7 respectively, each gas-water mixer 4 comprises air inlet 4.1, outlet pipe 4.2, inlet opening 4.3, on outlet pipe 4.2 and the inlet opening 4.3 one way valve 4.4 and 4.5 are housed respectively, parallel with one another between the gas-water mixer 4.Each one way valve 4.5 is opened automatically, and water enters in the gas-water mixer 4 through inlet opening 4.3.

Open the power supply of air compressor 1 and automatic controller 3, time relay 3.1a end picks up counting, the d end of solenoid operated directional valve 3.2 and g end UNICOM, gases at high pressure enter gas-water mixer 4 through solenoid operated directional valve 3.2, one way valve 4.3 pressurizeds are closed, with air compressor 1 from nearest first gas-water mixer, 4 internal pressures increase, corresponding one way valve 4.4 is opened, water flows out through outlet pipe 4.2; The time relay 3.1a end time arrives, and the b end picks up counting, solenoid operated directional valve 3.2e end and g end UNICOM, gas in the gas-water mixer 4 is discharged, nos pressure in first gas-water mixer 4, one way valve 4.5 is opened accordingly, and water 4.3 enters first gas-water mixer 4 through the inlet opening; Solenoid operated directional valve d end and f hold UNICOM simultaneously, gases at high pressure enter next automatic controller 3 through tracheae 2, in second gas-water mixer 4, repeat above-mentioned steps, then the 3rd, the 4th gas-water mixer 4 in, repeat above-mentioned steps, thereby realizing that each precipitation well that this system loads circulates draws water in regular turn.

Though the utility model is illustrated hereinbefore according to preferred embodiment, this does not represent that scope of the present utility model is confined to above-mentioned structure, if by structure that claim of the present utility model covered all within protection domain.Those skilled in the art can be developed the equivalent substitution structure that at an easy rate after reading above-mentioned explanation, in following equalization variation and the modification of being done of spirit that does not break away from the utility model and scope, all should be covered by within the utility model claim.

Claims

1. a pneumatic type is controlled many wells precipitation system automatically, it is characterized in that comprising:

2. pneumatic type as claimed in claim 1 is many wells of control precipitation system automatically, it is characterized in that described outlet pipe is pooled on the water pipe by threeway.