CN214423392U

CN214423392U - Novel well point dewatering device

Info

Publication number: CN214423392U
Application number: CN202022545821.7U
Authority: CN
Inventors: 姚利国; 许渊; 彭红霞; 周振; 周传珍; 兰韡; 杨智伟; 曹笑笑
Original assignee: Shanghai Yuanfeng Underground Engineering Technology Co ltd
Current assignee: Shanghai Yuanfeng Underground Engineering Technology Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-10-19
Anticipated expiration: 2030-11-06

Abstract

The utility model provides a novel well point dewatering device, its include the water tank, with the vacuum pump that the water tank is linked together, set up in the immersible pump of water tank bottom, with the well point that the water tank is linked together is responsible for and with a plurality of well point branch pipes of burying in the stratum that the well point is responsible for and is linked together. Adopt the technical scheme of the utility model, can eliminate the restriction of ground water level to the vacuum pump position.

Description

Novel well point dewatering device

Technical Field

The utility model relates to a building engineering field especially relates to a novel well point dewatering device.

Background

At present, underground projects such as highway tunnels, subways, underground pipe networks and the like built and proposed in China are increasing day by day, the projects can not pass through sections with complicated project hydrogeological conditions, and an underground water seepage field is in a dynamic balance state before the underground projects are built. Along with the excavation of the underground engineering and the formation of the near empty surface, underground water is collected and seeped to the near empty surface to form underground engineering excavation surface seepage water, if effective water collecting and draining measures are not taken, the rock surface fissure seepage water is drained to a drainage ditch of the underground engineering, the seepage water is gathered after the supporting lining wall, the water pressure is increased, the supporting body structure is damaged, and the seepage water generated by the engineering structure and the service life are greatly reduced; meanwhile, the underground engineering supporting and waterproof construction is carried out under the condition of large-area water seepage, the construction quality cannot be guaranteed, and the underground engineering is easy to have water seepage in the operation process.

As shown in fig. 1, it is common in the industry to perform dewatering by using underground well point branch pipes 5 arranged at certain intervals, introduce groundwater into the well point branch pipes 5, connect a plurality of well point branch pipes 5 through a main pipe 4, pump the main pipe 4 by a vacuum pump 1, and pump out and discharge the water vapor infiltrated into each well point branch pipe 5. The technical scheme has the following defects:

1. the position of the vacuum pump inlet 3 and the ground water level cannot theoretically exceed 10m (one atmosphere) in vertical distance due to atmospheric pressure so that the vacuum pump inlet 3, the depth of the well point branch pipe 5 and the position of the work surface 6 are limited in vertical space.

2. A part of energy is consumed in the process of moving water/gas in the main pipe 4, so that the horizontal space distance between the vacuum pump 1 and the well point branch pipe 5 on the water surface is limited, and the number of the well point branch pipes 5 is influenced.

3. Because the vacuum pump 1 needs the incoming water/gas to do work, the vacuum pump 1 consumes more electric energy, and simultaneously, because a certain amount of silt exists in the water entering the vacuum pump 1 sometimes, the vacuum generating device of the vacuum pump 1 is easily damaged, the vacuum degree and the air suction amount of the vacuum pump 1 are reduced, the running efficiency is reduced, and the service life of the vacuum pump 1 is also reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel well point dewatering device to improve the quantity of the well point branch pipe that the vacuum pump drove and improve the life-span of vacuum pump, and eliminate the restriction of ground water level vertical height to the vacuum pump position.

The embodiment of the utility model provides an in, provide a novel well point dewatering device, its include the water tank, with the vacuum pump that the water tank is linked together, set up in the immersible pump of water tank bottom, with the well point that the water tank is linked together is responsible for and with a plurality of well point branch pipes of burying in the stratum that the well point is responsible for and is linked together.

In the embodiment of the utility model, the immersible pump is with one stretches out the outlet pipe of water tank is connected, is used for through the outlet pipe will water in the water tank is discharged.

In the embodiment of the utility model, the vacuum pump with the water tank is linked together through an inspiratory tube.

Compared with the prior art, the novel well point dewatering device of the utility model has the advantages that the vacuum pump only has air flow, and the vacuum pump is not limited by the vertical height of the underground water level in the well point branch pipe, so that the vacuum pump can be placed on the natural ground, and the water tank can be placed on the operation surface of deep foundation pit construction, thereby increasing the action range of the novel light well point and facilitating construction and operation; because the vacuum pump only inhales, does not need to do work to the drainage, can not inhale silt, make the efficiency of vacuum pump improve greatly, and a vacuum pump can drive more well point branch pipes, and the damage to the vacuum pump has also been reduced simultaneously to the reduction energy consumption of raising the efficiency.

Drawings

Fig. 1 is a schematic view of a prior art precipitation device.

Fig. 2 is a schematic structural diagram of the novel well point dewatering device of the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

As shown in fig. 1, the embodiment of the utility model provides a novel well point dewatering device, it includes water tank 1, with vacuum pump 2 that water tank 1 is linked together, set up in the immersible pump 3 of water tank 1 bottom, with well point that water tank 1 is linked together is responsible for 4 and with a plurality of well point branch pipes 5 of burying in the stratum that well point is responsible for 4 and is linked together. And the well point branch pipe 5 is provided with filter holes for collecting underground water.

The vacuum pump 2 is communicated with the water tank 1 through an air suction pipe 6. The vacuum pump 2 is used for vacuumizing the water tank 1, the well point main pipe 4 and the well point branch pipe 5, and extracting a water and water-vapor mixture in the well point branch pipe 5 into the water tank 1. The water and water-gas mixture in the well point branch 5 is separated into water and gas in the water tank 1. The separated gas is further pumped away by the vacuum pump 2 and the separated water is pumped away by the submersible pump 3.

The submersible pump 3 is connected with a water outlet pipe 7 extending out of the water tank 1 and used for discharging water in the water tank 1 through the water outlet pipe 6. The submersible pump 3 can be arranged at the bottom of the water tank 1 and also at the middle part of the water tank 1, and the utility model discloses this is not restricted.

In conclusion, the novel well point dewatering device provided by the utility model has the advantages that only air flows in the vacuum pump, so that the vacuum pump can be placed on the natural ground without being limited by the vertical height of the underground water level in the well point branch pipe, the water tank can be placed on the operation surface of deep foundation pit construction, the action range of the novel light well point is enlarged, and the construction and operation are convenient; because the vacuum pump only inhales, does not need to do work to the drainage, can not inhale silt, make the efficiency of vacuum pump improve greatly, and a vacuum pump can drive more well point branch pipes, and the damage to the vacuum pump has also been reduced simultaneously to the reduction energy consumption of raising the efficiency.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a novel well point dewatering device, its characterized in that, including the water tank, with the vacuum pump that the water tank is linked together, set up in the immersible pump of water tank bottom, with the well point that the water tank is linked together is responsible for and with a plurality of well point branch pipes of burying in the stratum that the well point is responsible for and is linked together, the immersible pump set up with the water tank middle part, the immersible pump is with one stretches out the outlet pipe of water tank is connected, is used for passing through the outlet pipe will water in the water tank is discharged.

2. The novel well point dewatering apparatus of claim 1, wherein the vacuum pump is in communication with the water tank via an intake pipe.