CN216007231U - Underground lift pump system for preventing underground sewage plant station from being flooded by water - Google Patents

Abstract

The utility model discloses a prevent underground sewage plant station by underground elevator pump system of water logging, including intake shaft, pump station forebay, effluent basin, be equipped with gate and overflow pipe culvert in the intake shaft, be equipped with the elevator pump in the pump station forebay, the exit end below in effluent basin is equipped with low-order overflow weir, and the exit end top in effluent basin is equipped with high-order overflow weir, and the exit end in effluent basin still is equipped with the fast switching floodgate that closes for switching between low-order overflow weir play water and the high-order overflow weir play water, when the fast switching floodgate that closes closed the door, low-order overflow weir closed, switches to high-order overflow weir play water. The utility model discloses can prevent effectively that underground sewage plant from being flooded by water, the water environment is protected, and energy saving consumes simultaneously, and is little to the ground environment influence.

Description

Underground lift pump system for preventing underground sewage plant station from being flooded by water

Technical Field

The utility model belongs to the technical field of the urban drainage, more specifically relates to a prevent that underground sewage plant from being by the secret elevator pump system of water logging.

Background

The traditional urban sewage treatment plant in China mostly adopts an aboveground construction mode, but along with the development of cities, the land is more and more scarce, and the requirement of people on the environment is more and more high. In order to relieve the conflict between sewage treatment facilities and sensitive points of the surrounding environment and save construction land, newly-built sewage treatment plants in cities mostly adopt a full underground construction mode, but in a drainage system with combined flow or incomplete rain and sewage diversion, the inflow water amount is increased suddenly in rainy seasons, the water level is increased rapidly, and the underground sewage plants have the risk of being flooded. If the underground sewage plant station is intake and is promoted the pump and go out pond overflow weir setting and be lower, when the water level of pump station forebay was high, rain sewage mixed water can directly get into underground sewage plant station through promoting the pump outlet pipe, and the inflow will be uncontrolled, and then causes underground sewage plant station to be flooded by water. If the overflow weir of the water inlet lift pump outlet pool of the underground sewage plant is arranged higher, the working lift of the water pump is increased, and the energy consumption is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect, the utility model is to provide a prevent underground sewage plant station by the underground elevator pump system of flooding aims at solving current underground sewage plant station and intake the water yield when rainy season and increases suddenly, and the water level risees rapidly, has the risk of suffering the flooding to and underground sewage plant station intake elevator pump outlet pond overflow weir sets up higher, and water pump working head is big, the problem that the energy consumption is big.

In order to solve the above problem, the utility model discloses technical scheme does: an underground lift pump system for preventing an underground sewage plant from being flooded by water comprises a water inlet well, a gate, an overflow pipe culvert, a pump station forebay, a lift pump, a water outlet pool, a low overflow weir, a high overflow weir and a quick-closing switching gate.

The water inlet well can be connected with sewage filtered by the coarse grating, a gate and an overflow pipe culvert are arranged in the water inlet well, the overflow pipe culvert is connected with nearby water bodies or storage facilities, the elevation of the bottom of the overflow pipe culvert is higher than the normal water level of the discharged water body, and meanwhile, the overflow pipe culvert is provided with a backflow-preventing gate or valve, so that excessive rain and sewage mixed water can be discharged to the nearby water bodies or the storage facilities; the pump station forebay guides inflow water, so that water flow smoothly enters the lift pump at a uniform flow rate, the lift pump is arranged in the pump station forebay, the water level of the pump station forebay is h, and the pump station forebay is provided with a shutdown water level h1 and an alarm water level h2, wherein the alarm water level h2 is a critical water level at which the lift pump can normally operate; the effluent pool can be connected with a water outlet pipeline of the lifting pump and a downstream underground sewage treatment facility, the outlet end of the effluent pool is provided with a low-level overflow weir, the weir top elevation is the calculated elevation of the design working condition, the outlet end of the effluent pool is provided with a high-level overflow weir, the weir top elevation needs to be higher than the highest control water level of a water body discharged by the overflow pipe culvert, the outlet end of the effluent pool is also provided with a quick-closing switching gate for switching between the low-level overflow weir effluent and the high-level overflow weir effluent, and when the quick-closing switching gate is closed, the low-level overflow weir is closed and is switched to the high-level overflow weir effluent.

Furthermore, in dry seasons, sewage flows through the holes of the gate after entering the water inlet well, then flows into the pump station forebay, is lifted by the lifting pump and discharged into the water outlet bay, and is discharged to a downstream underground sewage treatment facility through the low-level overflow weir, the lifting pump has small lift and low energy consumption.

Furthermore, when the rainfall occurs, the water inflow is increased, the water level h of the front pool of the pump station rises, and when the water level h rises to the alarm water level h2, the quick-closing switching gate is closed, so that the water outlet pool is switched to the high-level overflow weir to discharge water; on one hand, the lift pump is recovered to the working lift, and can be safely and stably operated; on the other hand, after the water level continues to rise, rain and sewage mixed water directly enters the underground sewage plant station through a lifting pump water outlet pipe, so that the underground sewage plant station is prevented from being flooded by water due to uncontrollable water quantity; one part of sewage is pumped and discharged to a water outlet pool by a lifting pump, and then is discharged into a downstream underground sewage treatment facility by a high-level overflow weir, and the other part of over-standard rain and sewage mixed water overflows to a nearby water body or a regulation and storage facility by an overflow pipe culvert.

Furthermore, when the rain stops, the water inflow is reduced, the water level h of the front pool of the pump station is lowered, and when the water level h is lowered to the alarm water level h2, the quick-closing switching gate is opened, so that the water outlet pool is switched to the low-level overflow weir to discharge water, and the lift pump system is recovered to the dry season running state.

Furthermore, the utility model discloses still include deodorizing device, be same deodorization system with underground sewage plant station, this deodorizing device can adopt biological filter deodorization, or chemical washing deodorization, or ion deodorization.

Further, the utility model discloses still contain electric autonomous system, be same electric autonomous system with underground sewage plant station, for one-level power consumption load, adopt the dual power supply, wherein the power of the same kind forms for subsequent use, and 100% power consumption load is all undertaken to every way power, guarantees the reliability of power.

The utility model can prevent the high water level of the inlet water in rainy season from causing the sewage to directly enter the water outlet pool through the lifting pump water outlet pipe and then overflow to the underground sewage plant station, thus causing the plant station to be flooded by water; normal operation of the underground sewage plant station in rainy season is ensured, overflow pollution in rainy season is reduced, and the water environment is protected; according to the pump station forebay water level, the water outlet bay water level is adjusted, so that the lift pump is positioned in the high-efficiency region to operate, and the energy consumption is saved; the utility model discloses the majority is located the underground, and ground space can be used to the view scene, has the characteristics that influence is little to the environment.

Drawings

FIG. 1 is a schematic structural view of an underground lift pump system for preventing flooding of an underground sewage plant;

the corresponding structure of each numerical mark in the drawings is as follows: 1 is the inlet shaft, 2 is the gate, 3 is the overflow pipe culvert, 4 is the pump station forebay, 5 is the elevator pump, 6 is the effluent water sump, 7 is low-order overflow weir, 8 is high-order overflow weir, 9 is the fast switching floodgate that closes.

Detailed Description

The embodiments of the present invention will be described in detail below, and the technical solution of the present invention is implemented on the premise, which provides a detailed implementation and a specific operation process, but the present invention is not limited to the following embodiments.

The utility model discloses in provide a prevent that underground sewage plant station from being by the underground elevator pump system of water logging, main constitution contains: the water inlet well 1 is used for accessing sewage filtered by the coarse grating; the pump station forebay 4 guides the inflow water, so that the water flow smoothly and uniformly enters the lift pump; and the water outlet pool 6 is connected with a water outlet pipeline of the lift pump and a sewage treatment facility in the downstream formula.

The intake well 1 includes: the gate 2 is positioned at the water outlet end of the water inlet well 1; overflow pipe culvert 3, this overflow pipe culvert 3 discharges to near water or regulation facility, and overflow pipe culvert bottom elevation needs be higher than and discharges water normal water level, simultaneously, need set up the gate or the valve that prevent flowing backward on the overflow pipe culvert.

The pump station forebay 4 contains: the lifting pump 5 is positioned in the pump station forebay 4, and a water outlet pipe of the lifting pump is connected to a water outlet pool; the water level h of the pump station forebay, the shutdown water level h1, the alarm water level h2 and the alarm water level h2 are critical water levels for normal operation of the lift pump 5.

The effluent pool 6 comprises: the low-level overflow weir 7 is arranged at the outlet end of the effluent pool 6, and the weir top elevation of the low-level overflow weir is the calculated elevation of the design working condition; the high-level overflow weir 8 is arranged at the outlet end of the effluent pool 6, and the elevation of the weir top of the high-level overflow weir is higher than the highest control water level of the water discharged by the overflow pipe culvert 3; the quick closing switching gate 9 is arranged at the outlet end of the effluent pool 6, is used for switching between the effluent of the low-level overflow weir 7 and the effluent of the high-level overflow weir 8, is a hydraulic quick closing gate, is in a door opening state under a normal condition, and requires power failure for closing a door; when the quick-closing switching gate 9 is opened, the low-level overflow weir 7 discharges water; when the quick closing switch gate 9 closes the gate, the low overflow weir 7 is closed and is switched to the high overflow weir 8 to discharge water.

In dry seasons, sewage flows through the holes of the gate 2 after entering the water inlet well 1, then flows into the pump station forebay 4, is lifted by the lifting pump 5, is discharged into the water outlet pool 6, and is discharged to a downstream underground sewage treatment facility by the low-level overflow weir 7, the lifting pump has small lift and low energy consumption.

When the rainfall occurs, the water inflow is increased, the water level h of the pump station forebay 4 rises, and when the water level h rises to the alarm water level h2, the quick-closing switching gate 9 is closed, so that the water outlet pool 6 is switched to the high-level overflow weir 8 for water outlet. On one hand, the lift pump is recovered to the working lift, and can be safely and stably transported; on the other hand, after the water level is prevented from continuously rising, rain and sewage mixed water directly enters the underground sewage plant station through a lifting pump water outlet pipe, so that the underground sewage plant station is flooded by water due to uncontrollable water quantity. One part of sewage is pumped and discharged to a water outlet pool 6 through a lifting pump 5, and then is discharged into a downstream underground sewage treatment facility through a high-level overflow weir 8, and the other part of over-standard rain and sewage mixed water overflows to a nearby water body or a regulation and storage facility through an overflow pipe culvert 3.

When the rain stops, the water inflow is reduced, the water level h of the pump station forebay 4 is lowered, and when the water level h is lowered to the alarm water level h2, the quick-closing switching gate 9 is opened, so that the water outlet pool 6 is switched to the low-level overflow weir 7 to discharge water, and the lift pump system recovers the running state in dry seasons.

The utility model provides a prevent that underground sewage plant station from still containing by the secret elevator pump system of water logging: the deodorizing device and the underground sewage plant station are the same deodorizing system, and the deodorizing device can adopt a biological filter chamber for deodorization, or chemical washing for deodorization, or ion deodorization.

The utility model provides a prevent that underground sewage plant station from still containing by the secret elevator pump system of water logging: the electric automatic control system and the underground sewage plant station are the same electric automatic control system, are primary power loads, adopt a double-circuit power supply to supply power, wherein one circuit of power supply forms a standby, and each circuit of power supply bears 100% of the power loads, thereby ensuring the reliability of the power supply.

It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. An underground lift pump system for preventing flooding of an underground sewage plant, the lift pump system comprising: the system comprises a water inlet well (1), a pump station forebay (4), a water outlet pool (6), a low-level overflow weir (7), a high-level overflow weir (8) and a quick-closing switching gate (9); the quick-closing switching gate (9) is a hydraulic quick-closing gate, is positioned at the outlet end of the effluent pool (6), is installed on the low-level overflow weir (7), and when the quick-closing switching gate (9) is opened, the low-level overflow weir (7) discharges water, and when the quick-closing switching gate (9) is closed, the low-level overflow weir (7) is closed and is switched to the high-level overflow weir (8) to discharge water.

2. A hoist pump system according to claim 1, characterized in that the outlet of the intake well (1) is provided with a sluice (2) and in the middle with an overflow culvert (3).

3. The lift pump system of claim 2, wherein the overflow culvert (3) is connected to a nearby body of water or a storage facility, and the elevation of the overflow culvert (3) is higher than the normal water level of the nearby body of water.

4. A lift pump system according to claim 1, characterized in that the pump station forebay (4) is fitted with a lift pump (5) at the connection with the effluent bay (6).

5. The lift pump system according to claim 4, characterized in that the pump station forebay (4) is pre-set with a shut-down water level h1 and a warning water level h2, wherein the warning water level h2 is a critical level at which the lift pump (5) can operate properly.

6. The lift pump system according to claim 4, characterized in that the outlet basin (6) is connected to the outlet conduit of the lift pump (5) and to a sewage treatment plant of the downstream type.

7. The lift pump system of any of claims 1-6, wherein: the low-level overflow weir (7) is positioned at the outlet end of the water outlet pool (6), and the elevation of the weir top of the low-level overflow weir is the calculated elevation of the design working condition.

8. The lift pump system of any of claims 1-6, wherein: the high-level overflow weir (8) is positioned at the outlet end of the effluent pool (6), and the elevation of the weir top of the high-level overflow weir (8) is higher than the highest control water level of the water body discharged by the overflow pipe culvert (3).

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