CN219280815U - Emergency mobile water taking system - Google Patents

Abstract

The utility model relates to an emergency mobile water taking system which comprises a mobile water taking buoyancy tank device (comprising an axial flow pump with a pontoon, a fixed framework, a short pipe, a check valve and a butterfly valve), a hose and a pipeline system buried on a river bed, wherein the mobile water taking buoyancy tank device is installed in a combined mode. The axial-flow pump is fixed on fixed framework, axial-flow pump and flotation pontoon fixed connection, the outlet end junction pipe of axial-flow pump, the other end of nozzle stub connects gradually check valve and butterfly valve, the other end of butterfly valve is in proper order with flange form coupling hose and bury pipeline (including overflow pipe) on the riverbed. The utility model is connected with the hose and the pipeline buried on the river bed through the movable water taking buoyancy tank device which is installed in a combined way, and supplies water to the front pool of the water taking pump room, thereby realizing the purpose of emergency rapid water supply.

Description

Emergency mobile water taking system

Technical Field

The utility model belongs to the technical field of municipal engineering, and relates to an emergency mobile water taking system, in particular to an emergency mobile water taking system which can be installed in a combined mode and is connected with a pipeline buried on a river bed through a hose.

Background

At present, the water level of the river and the lake continuously and rapidly drops in the middle and south regions of the vast China, the water taking project taking the river and the lake as water sources generally faces the dilemma of not getting water, the production and the domestic water guarantee of the masses face a great threat, especially in large and medium cities with concentrated population, once the water supply of the cities is interrupted, the consequences are not envisaged.

According to design standard or specification, the guarantee rate of the dead water level of the water taking project is generally more than 95%, namely, the water can be safely taken at least under the condition of the dead water level in 20 years. In the actual design process, the design dead water level is mostly between 97% and 99% under the condition of considering a series of factors such as river channel management, water resources, engineering cost, construction difficulty and the like. After the water level of the water source is reduced below the design dead water level, many current water taking projects are difficult to meet the normal water taking requirement, and the water taking projects are mainly characterized in the following two aspects: (1) after the water level of the river and the lake falls below the designed dead water level due to drought, the operation safety of the equipment is threatened. When the water level of the source is reduced below the design dead water level: the water inlet condition of the water intake is poor, and the water intake is easy to be blocked or the water inflow is easy to be reduced; the water absorption condition of the water taking pump does not meet the condition of safe operation of equipment, so that the failure rate of the equipment is increased; the quality of the inlet water is deteriorated, and the treatment process of the water factory is difficult to be equal. (2) When the water level of the water source continues to drop below the water level capable of taking water, the water taking project cannot take water, so that water is stopped. Once the urban water supply is interrupted, the result is not considered.

When the water level of the water source continues to drop rapidly due to extensive and continuous drought and the water cannot be taken in the existing water taking engineering in a short period, the large and medium cities generally start an emergency water source or a second water source to be used as an alternative supplement. However, in most cities, no emergency water source or no second water source is constructed, and the emergency requirement for rapid water taking capacity cannot be met. In addition, some cities can adopt modes of reducing or extending the water intake head to the center of a river channel or arranging a retaining dam at the downstream of the river channel, and the emergency water intake systems can not meet the requirement of forming water intake capacity rapidly, and can seriously influence the safe operation of the current river channel and water intake facilities, and have the characteristics of immobilized facilities, poor regulating capacity, large engineering investment and the like. The existing emergency water taking system cannot achieve the capabilities of quick response, safety, economy, convenient movement, flexible adjustment and the like.

Disclosure of Invention

The utility model aims to provide an emergency mobile water taking system capable of being installed in a combined mode, which mainly comprises a mobile water taking buoyancy tank device and is connected with a pipeline buried on a riverbed through a hose so as to achieve the purpose of emergency rapid water taking.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

an emergency mobile water taking system comprises a mobile water taking buoyancy tank, a hose and a pipeline buried on a river bed; the movable water taking buoyancy tank comprises an axial flow pump with a pontoon, a framework, a short pipe, a check valve and a butterfly valve; the axial-flow pump with flotation pontoon fixed connection, the axial-flow pump is fixed on the framework, the play water end of axial-flow pump with the nozzle stub is connected, the other end of nozzle stub in proper order with the check valve reaches the butterfly valve is connected, the other end of butterfly valve in proper order with the hose reaches the pipe connection on burying the riverbed.

In a further preferred embodiment, the axial flow pump is preferably a mid-suction submersible axial flow pump, which can be operated at shallow water depths. The middle suction type submersible axial flow pump is fixed with the pontoon, and the pontoon provides enough buoyancy for the submersible pump.

Further, the axial flow pump is secured to the frame by bolts or inserts in a simple manner. The fixed frame may be any rigid object frame and should not cause the pontoon-mounted axial flow pump to sink. The structure can realize rapid assembly and disassembly, and is convenient for adapting to different water intake demands and maintenance of a single axial flow pump.

Further, the axial flow pump is fixedly connected with the pontoon through bolts and the steel bracket.

Further, flanges are arranged at two ends of the short pipe. The length of the short pipe is set so that the positions of the check valve and the butterfly valve are out of the vertical projection range of the pontoon.

Further, the butterfly valve in the movable water taking buoyancy tank device is connected with the hose through a flange. The hose and the pipeline buried on the riverbed are connected through a flange (the pipeline can be temporary or permanent), so that the hose is convenient to rapidly install and plug a later-stage blank, the position of a buoyancy tank can be conveniently changed, emergency movement and rapid water supply can be realized, and the purpose of supplying water to a front pool of a water taking pump house is achieved.

Further, the hose can be lengthened according to needs, the hose can be arranged in a plurality of sections, and the hoses of adjacent sections are connected through buckles, so that the hose has strong adaptability to the change of water level and water flow.

Further, the pipeline buried on the riverbed is provided with an overflow pipe at the front pool of the pump house for taking water, so that the risk of flooding the pump house caused by overlarge emergency water taking amount is avoided, and the water supply safety of emergency water taking is ensured.

Compared with the prior art, the technical scheme of the utility model not only comprises the improvement of the whole technical scheme, but also comprises the improvement of a plurality of detail aspects, can safely and quickly respond to the emergency water taking requirement, has economic and economical engineering investment, is flexible and convenient to install, disassemble and operate and maintain, is widely applicable to emergency water taking of rivers and lakes, and particularly has the following beneficial effects:

1. the adopted middle-suction type submersible axial flow pump can safely run under the condition of small water depth, so that the water taking safety at low water level is ensured;

2. the middle suction type submersible axial flow pump with the pontoon is combined together, and is installed and fixed in a convenient mode, so that centralized management is facilitated, and installation, disassembly and maintenance are also facilitated;

3. the emergency movable water taking buoyancy tank is connected with a pipeline buried in the bottom of the river bed in a hose mode (the length can be conveniently increased), so that the buoyancy tank can move in any direction, and the emergency movable water taking buoyancy tank is more suitable for the change of the water level and the water flow of a water source;

4. the hose is connected with the hard pipeline buried at the bottom of the river bed in a flange mode, so that the emergency mobile water taking buoyancy tank device and the hose are convenient to install and disassemble and convenient to recycle and can be reused;

5. the plurality of groups of movable water taking buoyancy tanks can be combined for use, and any group can be conveniently installed and detached;

6. the pipeline buried on the river bed is provided with the overflow pipe, so that the risk of submerged pump house caused by overlarge emergency water intake can be avoided, and the water supply safety of emergency water intake is ensured.

In a word, the utility model has simple structure, quick and convenient construction and installation of each component, economical engineering investment, stable, safe and reliable operation, capability of meeting the requirement of emergency water supply, and capability of recycling and reusing equipment and facilities.

Drawings

FIG. 1 is a schematic diagram of an emergency mobile water intake system of the present utility model;

FIG. 2 is a schematic illustration of a modular mobile water intake buoyancy tank device of the present utility model;

FIG. 3 is a schematic diagram of the mobile water intake buoyancy tank device of the present utility model connected to a pipeline buried in a river bed;

the figure shows: 1-axial flow pump, 2-framework, 3-pontoon, 4-nozzle stub, 5-check valve, 6-butterfly valve, 7-hose, 8-pipeline buried on the riverbed, 9-overflow pipe, 10-water intake pump house forebay.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art without the inventive effort, are within the scope of the present utility model based on the embodiments of the present utility model.

Referring to fig. 1, the emergency mobile water intake system of the present utility model is used for emergency mobile water intake and emergency rapid water supply to the pump house forebay 10 is realized in this embodiment. Referring to fig. 3, a plurality of mobile water taking buoyancy tanks are installed in a combined manner in the emergency mobile water taking system. Referring to fig. 2, the mobile water intake buoyancy tank comprises an axial flow pump 1 with a pontoon 3, a frame 2, a short pipe 4, a check valve 5 and a butterfly valve 6. The axial flow pump 1 adopts a middle suction type submersible axial flow pump, the check valve adopts a butterfly valve type check valve, the butterfly valve adopts a butt clamp type butterfly valve, the butterfly valve is a commercially available mature product, the running is mature, the quality is ensured, and the quick purchasing and convenient installation can be realized.

The emergency movable water taking buoyancy tank device is assembled and installed in the following mode:

the axial flow pump 1 is fixedly connected with the pontoon 3 through bolts and a steel bracket, the water outlet end of the axial flow pump 1 is connected with a short pipe 4 with flanges at two ends (the length of the short pipe 4 enables the positions of the check valve 5 and the butterfly valve 6 to be out of the vertical projection range of the pontoon 3), and the other end of the short pipe 4 is sequentially connected with the check valve 5 and the butterfly valve 6. Each axial flow pump 1 provided with the pontoons 3 is fixed on the framework 2 in a simple manner through bolts or inserts (the framework 2 can adopt self-processing rigid objects, the length of the framework meets the requirement of safe running interval of the water pump, and the setting of the framework should not cause the sinking of the middle suction type submersible axial flow pump 1 with the pontoons 3).

The emergency mobile water taking buoyancy tank device realizes emergency rapid water supply to the pump house forebay in the following mode:

the butterfly valve 6 in each emergency movable water taking buoyancy tank device is connected with the hose 7 through a flange. When the length needs to be increased, the hoses 7 are arranged in a multi-section mode, and the hoses 7 of adjacent sections are connected through buckles so as to adapt to the change of water level and water flow. The other end of the hose 7 is connected with a pipeline 8 (the pipeline 8 is a hard pipeline, can be temporary or permanent) buried on the river bed in a flange mode, is communicated with a water taking pump house forebay 10 through the pipeline 8 buried on the river bed and supplies water to the water taking pump house forebay 10, meanwhile, in order to avoid the risk of submerged pump house caused by overlarge emergency water intake, the water supply safety of emergency water intake is ensured, and the pipeline 8 buried on the river bed is provided with an overflow pipe 9 at the position of the water taking pump house forebay 10.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described above. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (10)

1. An emergency mobile water taking system is characterized by comprising a mobile water taking buoyancy tank, a hose (7) and a pipeline (8) buried on a river bed; the movable water taking buoyancy tank comprises an axial flow pump (1) with a pontoon (3), a framework (2), a short pipe (4), a check valve (5) and a butterfly valve (6); the utility model discloses a hydraulic system, including flotation pontoon (3), flotation pontoon (1), flotation pontoon (3), flotation pontoon (1) are in on framework (2), the water outlet end of flotation pontoon (1) with nozzle stub (4) are connected, the other end of nozzle stub (4) with check valve (5) and butterfly valve (6) are connected in proper order, the other end of butterfly valve (6) with hose (7) and bury pipeline (8) on the riverbed are connected.

2. An emergency mobile water intake system according to claim 1, wherein the axial flow pump (1) is a mid-suction submersible axial flow pump.

3. An emergency mobile water intake system according to claim 1, characterized in that the axial flow pump (1) is fixed to the frame (2) by means of bolts or inserts.

4. An emergency mobile water intake system according to claim 1, wherein the axial flow pump (1) is fixedly connected to the pontoon (3) by bolts and steel brackets.

5. An emergency mobile water intake system according to claim 1, characterized in that the short pipe (4) is flanged at both ends.

6. An emergency mobile water intake system according to claim 1, characterized in that the length of the short pipe (4) is arranged such that the position of the check valve (5) and the butterfly valve (6) is outside the vertical projection range of the pontoon (3).

7. An emergency mobile water intake system according to claim 1, wherein the butterfly valve (6) is flanged to the hose (7).

8. An emergency mobile water intake system according to claim 1, wherein the hose (7) is flanged to the pipe (8) embedded in the river bed.

9. An emergency mobile water intake system according to claim 1, wherein the hoses (7) are provided in a plurality of segments, adjacent segments of hoses (7) being connected by snap-fit.

10. An emergency mobile water intake system according to claim 1, wherein the pipeline (8) buried in the river bed is provided with an overflow pipe (9) at the entrance of the water intake pump house forebay (10).

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