CN112081212A

CN112081212A - System for preventing and treating urban waterlogging by using underground well

Info

Publication number: CN112081212A
Application number: CN202010800293.7A
Authority: CN
Inventors: 姚灵; 王欣欣
Original assignee: Ningbo Water Meter Group Co Ltd
Current assignee: Ningbo Water Meter Group Co Ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2020-12-15

Abstract

The invention discloses a system for preventing and treating urban waterlogging by utilizing underground wells, which comprises a plurality of underground wells, wherein the underground wells are distributed according to actual terrain, the underground well distribution density of a low-lying terrain area is greater than that of a high-lying terrain area, two adjacent underground wells are connected through an underground tunnel, the underground tunnel is formed by chiseling by a shield machine, the tunnel wall of the underground tunnel is reinforced by concrete, and accumulated water collected in the underground wells can be collected into a reservoir through pipelines in the underground tunnel to be stored and recovered.

Description

System for preventing and treating urban waterlogging by using underground well

Technical Field

The invention relates to a system for preventing and treating urban waterlogging by using an underground well, belonging to the technical field of municipal engineering.

Background

In the prior art, urban inland inundation is generally prevented and controlled through a municipal drainage system, for example, in a Chinese invention patent with the patent number of CN201410270343.X, the university of Anhui industry of the patent owner discloses a method for determining a pre-selected site of a rainwater storage tank, and belongs to the technical field of urban drainage. The invention discloses a method for determining a pre-selection site of a rainwater storage tank, which mainly comprises the following steps: based on an SWMM model and urban inland inundation prevention and control standards, a rainwater system point is taken as an evaluation object, the position of a preselected storage tank is taken as a target, the ponding depth, the ponding range and the ponding time around the node are taken as evaluation factors, the importance, the sensitivity and the weighting of the node are considered, the comprehensive evaluation index of each node, namely the ponding hazard index, is obtained through conversion and calculation, the nodes are sorted according to the size of the ponding hazard index, and finally, the node with the larger ponding hazard index is determined as the site of the preselected site of the storage tank. The method considers more influence factors, obtains a more reasonable pre-addressing technical scheme, provides a good initial condition (scheme) for the layout optimization of the regulation and storage pool at the later stage, and improves the working efficiency of the analysis and comparison (scheme optimization) link.

However, current rainwater regulation pond, it distributes comparatively scatteredly, each regulation pond is the independent state, can't adjust and control according to the condition networking of reality, in addition, its usage of present rainwater regulation pond is mainly temporarily stored ponding in heavy rain season, need utilize city drainage pipe to draw ponding to rivers lake sea after that and discharge, its unable long-term storage reason lies in the in-process that ponding discharged to the cistern through sewer pipe, can smuggle a large amount of rubbish and silt secretly, a large amount of microorganisms exist in this kind of sewage, even set up the filter screen at the entry of cistern, these microorganisms also easily gather the mesh that blocks up the filter screen on the filter screen, this kind of sewage is stored in the regulation pond for a long time, can cause the cistern to smell, arouse the environmental protection problem.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a system for preventing and treating urban waterlogging, which recovers rainwater by using an underground well and guides the rainwater to be gathered in a reservoir for long-term storage.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an utilize system of underground well prevention and cure urban waterlogging, includes a plurality of underground well, these underground wells distribute according to actual relief, and the underground well distribution density in low-lying relief region will be greater than high relief region, links to each other through underground tunnel between two adjacent underground wells, and underground tunnel is formed by the shield constructs the machine excavation, and underground tunnel's tunnel wall is consolidated by the concrete, and the ponding of collecting in the underground well can be collected in the cistern through the pipeline in the underground tunnel and store the recovery.

As an improvement of the invention, the reservoir is an artificial lake, a water purifying mechanism is arranged in the reservoir, the water purifying mechanism comprises a bracket, a motor is fixed on the bracket, a motor shaft of the motor is horizontally arranged, the end part of the motor shaft is connected with a rotating shaft through a coupler, a rotor wing arranged in the radial direction is sleeved on the rotating shaft, the rotating shaft is driven by the motor shaft to rotate so as to drive the rotor wing to rotate, a vent pipe is also fixed on the bracket, the top of the vent pipe extends above the liquid level of the reservoir, the bottom of the vent pipe extends below the liquid level, the bottom of the vent pipe is connected with an injector, an injection cavity is formed in the injector in a hollow mode, the vent pipe is communicated with the interior of the injection cavity, a motor with a propeller is arranged above the injector, the motor with the propeller is fixed on the bracket through a support rod, the propeller extends in the injection, the air in the vent tube mixes with the water flow in the injection chamber, forming active bubbles in the water flow.

As a further improvement of the invention, the motor is connected with a shock absorption rod which is a damping rod, one end of the damping rod is connected with the motor, and the other end of the damping rod is connected with the bracket.

Preferably, the support is suspended on the liquid surface of the reservoir, a plurality of rubber suspensions are fixed on the periphery of the support, and the support and the rubber suspensions form a raft.

As a specific technical scheme of the invention, a floating island is fixed in the circumferential direction of a bracket, and green plants are planted on the floating island.

As an improvement of the invention, a cable is arranged at the bottom of the bracket, one end of the cable is fixed on the bottom surface of the bracket, the other end of the cable is connected with a bearing block, and the bearing block is supported at the bottom of the reservoir.

Compared with the prior art, the invention has the advantages that: the rainwater regulation and storage tank is characterized in that a plurality of underground wells are utilized to dredge accumulated water, waterlogging is prevented from being formed in a low-lying area, and then the accumulated water in each underground well is introduced into a large rainwater regulation and storage tank.

Drawings

FIG. 1 is a schematic diagram of a system for controlling urban waterlogging utilizing a subterranean well in accordance with an embodiment of the present invention;

FIG. 2 is a schematic structural view of a water purification mechanism in the reservoir of FIG. 1;

FIG. 3 is a top view of FIG. 2;

fig. 4 is a schematic diagram of the water purification mechanism shown in fig. 2.

Detailed Description

Embodiments of a system for controlling urban waterlogging using a subterranean well according to the present invention will be further described with reference to the accompanying drawings.

As shown in the attached drawings, the system for preventing and treating urban waterlogging by using the underground wells comprises a plurality of underground wells 1, the underground wells are distributed according to actual terrains, the underground well distribution density of a low-lying terrains area is larger than that of a high-lying terrains area, the underground wells are connected with the ground through drain pipes, rainwater is introduced into the underground wells through the drain pipes after falling to the ground, a ground tunnel 2 is connected between two adjacent underground wells, the underground tunnel is formed by digging of a shield machine, in order to enhance the strength of the underground tunnel and prevent collapse, the tunnel wall of the underground tunnel is reinforced through reinforced concrete, and accumulated water collected in the underground wells can be collected into a reservoir 3 through pipelines in the underground tunnel to be stored and recovered.

The cistern is an artificial lake, is provided with the filter screen at the entry of cistern, pipeline and handing-over mouth of cistern, and the filter screen can stop bulky impurity in aqueous in advance, and the filter screen top is provided with the pore, and the pore has formed the opening subaerial, and the staff can stretch into the pore and change the filter screen or wash this position with the instrument. And the rainwater of smuggleing small volume impurity and silt secretly then flows in the cistern after through the filter screen in, is provided with water purification mechanism in the cistern, water purification mechanism includes support 4, is fixed with motor 5 on the support, and the motor has the motor shaft, and the motor shaft level of motor is placed, passes through the coupling joint pivot 6 at the tip of motor shaft, when motor during operation, can pass through the coupling by the motor shaft and drive the pivot rotation. The support is suspended on the liquid surface of the reservoir, a plurality of rubber suspension bodies 12 are fixed on the periphery of the support, and the support and the rubber suspension bodies form a raft. The rubber suspension is hollow, air holes are formed on the surface of the rubber suspension, and the rubber suspension is similar to a football or a basketball, and a needle head can be inserted into the air holes to inject air inwards, so that the rubber suspension floats on the water surface. A floating island 13 is fixed in the circumferential direction of the support, and green plants 16 are planted on the floating island, can absorb carbon dioxide in the air and generate oxygen through photosynthesis left and right, are favorable for increasing the oxygen content of the water purification mechanism, and are favorable for reproduction of aerobic bacteria.

The cover is equipped with rotor 7 that is radial setting in the pivot, when the pivot rotated, can drive the rotor by the pivot and rotate, and whole water purification mechanism suspends on the surface of water of cistern, so when the rotor rotated, can drive the liquid level and be in a state of billowing, is similar to the shale shaker, can increase the contact of this position surface of water and air for more oxygen in the air can sneak into in the liquid level of this position. In addition, still be fixed on the support and be had ventilation pipe 17, the top of ventilation pipe extends in the top of cistern liquid level, the bottom of ventilation pipe then extends in the liquid level below, connect syringe 8 in the bottom of ventilation pipe, the inside cavity of syringe forms the injection chamber, ventilation pipe and the inside intercommunication of injection chamber, be provided with the motor 9 of taking the screw above the syringe, the motor of taking the screw passes through bracing piece 10 to be fixed on the support, the screw extends in the injection chamber, the screw can drive rivers and flow in the injection chamber from the back to the front, the air in the ventilation pipe mixes with the rivers in the injection chamber, form active bubble in rivers.

Aerobic bacteria in the water stream, typically nitrifying bacteria, including nitrite or nitrate, are used to eliminate (oxidize) ammonia and produce nitrous acid in the water ecosystem, nitrite bacteria, typically referred to as "oxidators" because the food source it is intended to support is ammonia, and the chemical energy generated by the combination of ammonia and oxygen is sufficient to allow it to survive. And nitrobacteria genus: bacteria capable of oxidizing nitrous acid molecules and converting the nitrous acid molecules into nitric acid molecules. Bacteria of the genus nitrobacteria, commonly referred to as "oxidators of nitrous acid", are found in food sources such as nitrous acid (or other organic matter) which, in combination with oxygen, produces nitric acid with chemical energy sufficient to survive. The nitrifying bacteria can decompose and remove toxic chemicals (ammonia and nitrous acid) in water, so that the water quality can be purified.

Through ventilation pipe and rotor for the rivers of water purification mechanism position are in the state of high-speed flow always and carry out abundant contact with the air, make the air can carry out intensive mixing with water in the injection chamber, are ejected by the injection chamber front end afterwards and form active oxygen-containing bubble, and aerobic bacterium purifies quality of water with oxygen-containing bubble reaction.

The shock absorption rod 11 is connected to the motor, the shock absorption rod is a damping rod, one end of the damping rod is connected to the motor, the other end of the damping rod is connected to the support, the shock absorption rod can play a shock absorption role in the motor, and the service lives of the support and the motor are prolonged.

In addition, a cable 14 is arranged at the bottom of the bracket, one end of the cable is fixed on the bottom surface of the bracket, and the other end of the cable is connected with a bearing block 15, the bearing block is sunk at the bottom of the reservoir and acts like a ship anchor. By means of the structure, the water purifying mechanism can be ensured to float in a certain area and can not float randomly.

The above description of the preferred embodiments of the present invention is provided to enable those skilled in the art to make various changes and modifications without departing from the spirit of the present invention, and these changes and modifications should be construed as being included in the scope of the present invention.

Claims

1. The utility model provides an utilize system of underground well prevention and cure urban waterlogging, includes a plurality of underground well, these underground wells distribute according to actual relief, and the underground well distribution density in low-lying relief region will be greater than high relief region, links to each other through underground tunnel between two adjacent underground wells, and underground tunnel is formed by the shield constructs the machine excavation, and underground tunnel's tunnel wall is consolidated by the concrete, and the ponding of collecting in the underground well can be collected in the cistern through the pipeline in the underground tunnel and store the recovery.

2. The system for controlling urban waterlogging using a subterranean well according to claim 1, wherein: the water purifying mechanism comprises a bracket, a motor is fixed on the bracket, a motor shaft of the motor is horizontally placed, the end part of the motor shaft is connected with a rotating shaft through a coupler, a rotor wing which is arranged in the radial direction is sleeved on the rotating shaft and is driven by the motor shaft to rotate so as to drive the rotor wing to rotate, a vent pipe is also fixed on the bracket, the top of the vent pipe extends above the liquid level of the water reservoir, the bottom of the vent pipe extends below the liquid level, the bottom of the vent pipe is connected with an injector, an injection cavity is formed in the injector in a hollow manner, the vent pipe is communicated with the inside of the injection cavity, a motor with a propeller is arranged above the injector, the motor with the propeller is fixed on the bracket through a support rod, the propeller extends in the injection cavity, and can drive water flow in the injection cavity from back to front, the air in the vent tube mixes with the water flow in the injection chamber, forming active bubbles in the water flow.

3. The system for controlling urban waterlogging using a subterranean well according to claim 2, wherein: the motor is connected with a shock absorption rod, the shock absorption rod is a damping rod, one end of the damping rod is connected to the motor, and the other end of the damping rod is connected to the support.

4. The system for controlling urban waterlogging using a subterranean well according to claim 2, wherein: the support is suspended on the liquid surface of the reservoir, a plurality of rubber suspensions are fixed on the circumference of the support, and the support and the rubber suspensions form a raft.

5. The system for controlling urban waterlogging using a subterranean well according to claim 2, wherein: a floating island is fixed in the circumferential direction of the support, and green plants are planted on the floating island.

6. The system for controlling urban waterlogging using a subterranean well according to claim 2, wherein: the bottom of the bracket is provided with a cable, one end of the cable is fixed on the bottom surface of the bracket, the other end of the cable is connected with a bearing block, and the bearing block is supported at the bottom of the water storage tank.