CN209585161U - A ladder water supply system - Google Patents

Abstract

A kind of ladder water system, the water system include water intake pumping station, booster station, the control valve being arranged in No.1 to No. four ponds, water supply line, each water supply line and control cabinet；The water inlet of water intake pumping station connects reservoir by water supply line, and the water outlet of water intake pumping station is separately connected the water inlet in one, three, No. four pond；The elevation of booster station is lower than No.1 pond, and the water inlet of aforementioned booster station connects No.1 pond by water supply line, and water outlet connects the water inlet in No. two ponds；Each control signal end of control cabinet is connected with the corresponding control signal end of water intake pumping station, booster station and each control valve respectively.The utility model rationally builds the pond of different elevations using initial land form, saves cost；Low water head pond is supplied water to the low user of elevation, and high water head pond is supplied water to the big user of elevation, makes full use of pond water potential energy；By second pressure water supply, greatly reduces cost and save the energy, meet power conservation requirement.

Description

A ladder water supply system

technical field

The utility model relates to the situation that the water supply surface is wide and the elevation difference of each water supply surface is large, especially a ladder water supply system, which supplies water to users at lower elevations through water pumping and filling of pools, and supplies water to users at higher elevations through water pump pressurization , while using hierarchical distributed control.

Background technique

The water supply system often adopts the form of a pool or a water tower to supply water, and the elevation of the pool or water tower must be larger than the water supply area to realize the water supply. When the water supply area is wide and the elevation difference is large, only one highest pool or water tower is built, and a water pump with a super large head must be used for pumping water. The capacity of the pool or water tower must also be large, which is costly and wastes energy.

Adopt a stepped water supply system and build multiple pools with different elevations. The elevation difference of each pool will cause the water level to rise at different speeds when the pools are filled with water, and even some pools are full of water, and some pools are still empty. The pool is difficult to realize. Coordinated control. In addition, it is difficult to ensure the safety and reliability of the control of the stepped water supply system.

Utility model content

The purpose of the utility model is to propose a ladder water supply system for the problem that the elevation difference of each water supply surface is large and it is difficult to supply water.

The technical scheme of the utility model is:

The utility model provides a ladder water supply system, which includes a water intake pump station, a pressurized pump station, No. 1 pool, No. 2 pool, No. 3 pool, No. 4 pool, water supply pipelines, and control valves set on each water supply pipeline and control cabinets;

There are two vacuum pumps and four multi-stage centrifugal pumps in the water intake pumping station. The water inlet of the water intake pumping station is connected to the reservoir through the water supply pipeline, and the water outlet of the water intake pumping station is respectively connected to the water inlets of No. 1 pool, No. 3 pool and No. 4 pool ;

There are three multi-stage centrifugal pumps in the pressurized pumping station. The elevation of the pressurized pumping station is lower than the No. 1 pool. The water inlet of the aforementioned pressurized pumping station is connected to the No. the water inlet of Pool No.;

Each control signal terminal of the control cabinet is respectively connected with the corresponding control signal terminals of the water intake pump station, the pressurized pump station and each control valve;

The aforementioned No. 1 pool, No. 3 pool and No. 4 pool are at low-order elevation positions, and water is supplied to the corresponding elevation positions of each pool respectively. No. 2 pool is at a high-order elevation position, and this pool is supplied with water by No. Location water supply.

Further, the elevation of the reservoir is 45m, the elevation of the water intake pump station is 50m, and the elevation of the booster pump station is 125m; the elevation of the No. 1 pool is 130m, the elevation of the No. 2 pool is 320m, the elevation of the No. The pool elevation is 115m.

Further, the No. 1 pool, the No. 2 pool, the No. 3 pool, and the No. 4 pool adopt reinforced concrete structures, all of which are rectangular pools.

Further, the capacity of the No. 1 pool is 1000m ³ , the maximum water level is 5m, and the warning high water level is 4.5m, the high water level is 4m, the middle water level is 2.5m, the low water level is 1m, and the warning low water level is 0.5m;

The capacity of the No. 2 pool is 2000m ³ , the maximum water level is 5m, and the warning high water level is 4.5m, the high water level is 4m, the middle water level is 2.5m, the low water level is 1m, and the warning low water level is 0.5m;

The capacity of the No. 3 pool is 800m ³ , the maximum water level is 4m, the warning high water level is 3.5m, the high water level is 3m, the middle water level is 2m, the low water level is 1m, and the warning low water level is 0.5m;

The capacity of the No. 4 pool is 800m ³ , the maximum water level is 4m, and the warning high water level is 3.5m, the high water level is 3m, the middle water level is 2m, the low water level is 1m, and the warning low water level is 0.5m.

Further, the head of the multistage centrifugal pump of the water intake pumping station is 130m, and the head of the multistage centrifugal pump of the booster pumping station is 215m.

Further, the No. 1 pool, the No. 2 pool, the No. 3 pool, and the No. 4 pool are equipped with pool level gauges in the pools, and the pool level gauges are used to detect the liquid level height of each pool. The detection signal output end is connected with the corresponding detection signal input end of the control cabinet.

Further, the water inlet pipelines of the No. 1 pool, No. 2 pool, No. 3 pool, and No. 4 pool are also provided with remote control float valves. The remote control float valves are automatically closed when the water level of the pool rises to the preset water level, preventing the pool from The water level is too high to cause overflow.

Further, the water pool level gauge adopts an ultrasonic liquid level gauge, and the water level signal of the pool is transmitted to the control cabinet through an optical transceiver.

The control cabinet controls the opening and closing of the centrifugal pump, vacuum pump and water inlet valve; the liquid level gauge transmits the liquid level signal to the control system; the vacuum pump works with the centrifugal pump, because there is no air in the centrifugal pump when it is working, so start the centrifugal pump First start the vacuum pump to pump air, and then start the centrifugal pump when the vacuum degree is sufficient.

Since the elevation of the centrifugal pump in the water intake pumping station is higher than that of the reservoir, air must be taken in when the centrifugal pump stops, so a vacuum pump is required; the elevation of the centrifugal pump in the pressurization pumping station is lower than that of No. 1 pool, so there is no air in the centrifugal pump, so there is no need to install a vacuum pump.

The beneficial effects of the utility model:

The utility model utilizes the original topography to reasonably select a location to build a pool, saving costs; build pools with different elevations, the low-head pool supplies water to users with low elevations, and the high-head pool supplies water to users with high elevations, making full use of the water potential energy of the pools; Pressurized to supply water to users with high elevations, which greatly reduces costs and saves energy, which meets energy-saving requirements; through the use of remote control float valves and flashlight dual-purpose water inlet valves, coordinated control of pool water levels at different elevations is realized; reasonable installation of exhaust valves , to reduce head loss; the control system adopts hierarchical distribution, which has high safety and reliability.

Other features and advantages of the present invention will be described in detail in the following detailed description.

Description of drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing the exemplary embodiments of the present invention in more detail in conjunction with the accompanying drawings, wherein, in the exemplary embodiments of the present invention, the same reference Reference numerals generally represent the same parts.

Fig. 1 shows a schematic structural diagram of the ladder water supply system of the present invention.

Among them: 1. Water intake pumping station; 2. Pressurized pumping station; 3. Reservoir.

Detailed ways

Preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein.

A stepped water supply system consists of a water intake pumping station 1, a pressurized pumping station 2, No. 1 pool, No. 2 pool, No. 3 pool, No. 4 pool, water supply pipelines and various control valves. One vacuum pump and four multi-stage centrifugal pumps are filled with water, and three multi-stage centrifugal pumps are installed in the booster pump station 2. The multi-stage centrifugal pump pumps water from the reservoir 3 to the No. The water in the pool is pressurized by the multi-stage centrifugal pump and sent to the No. 2 pool. The control system of the water supply system is controlled by the control cabinet, which is equipped with a PLC controller.

Described reservoir 3 elevation is about 45m, water intake pump station 1 elevation is 50m, pressurization pump station 2 elevation is 125m, No. 1 pond elevation is 130m, No. 2 pond elevation is 320m, No. 3 pond elevation is 125m, No. 4 The pool elevation is 115m. Each pool adopts reinforced concrete structure.

The head of the multistage centrifugal pump is 130m, and the head of the multistage centrifugal pump is 215m.

The No. 1 pool, the No. 2 pool, the No. 3 pool, and the No. 4 pool adopt reinforced concrete structures and are rectangular pools.

The capacity of the No. 1 pool is 1000m ³ , the maximum water level is 5m, the high and high water levels are 4.5m, the high water level is 4m, the middle water level is 2.5m, the low water level is 1m, and the low and low water levels are 0.5m; the capacity of the No. 2 pool is 2000m ³ , the maximum water level is 5m, the high and high water level is 4.5m, the high water level is 4m, the middle water level is 2.5m, the low water level is 1m, and the low and low water level is 0.5m; the capacity of the No. 3 pool is 800m ³ , the maximum water level is 4m, Set the high and high water level to 3.5m, the high water level to ^3m , the middle water level to 2m, the low water level to 1m, and the low and low water level to 0.5m; the capacity of the No. 3m, medium water level 2m, low water level 1m, low and low water level 0.5m;

The No. 1 pool, the No. 2 pool, the No. 3 pool, and the No. 4 pool are equipped with remote control float valves in the pools. The remote control float valves are automatically closed when the water level of the pool rises to the design water level, preventing the pool from overflowing when the water level is too high. Due to the difference in elevation and the loss of water head in the pipeline, the water level of each pool rises at different speeds, resulting in the problem that some pools cannot be filled with water.

The No. 1 pool, the No. 3 pool, and the No. 4 pool are equipped with water inlet valves at the water inlet pipes, which are dual-purpose flange type telescopic butterfly valves for flashlights.

The water supply pipeline is equipped with a cylinder-type exhaust valve along the road as required to prevent the air in the pipeline from generating eddy currents and causing water head loss.

Each local control unit and the control cabinet can communicate with each other, and can also operate independently, and the failure of a certain unit will not affect the normal operation of other units.

The power supply can supply power to the local control unit when the power is cut off, providing reliable uninterrupted power supply protection.

The design water level of the remote control float valve is lower than the high water level and higher than the high water level.

The four multi-pole centrifugal pumps in the water intake pumping station 1 have three main and one backup, and set the priority start sequence "1/2/3, 2/3/4, 3/4/1, 4/1/2", and the priority The pump with the highest level runs for 500 hours, and the priority start sequence is switched; the pressurized pump station 2 has three multistage centrifugal pumps, two main and one standby, and the priority start sequence is set. The switching rules are the same as the multistage centrifugal pumps of the water intake pump station; prepare.

The pool liquid level gauge adopts an ultrasonic liquid level gauge, and transmits the pool water level signal to the control cabinet through an optical transceiver.

When implementing it:

S1. If the water level of the No. 1 pool, No. 3 pool, and No. 4 pool is lower than the low and low water levels, the three multi-stage centrifugal pumps of the water intake pumping station 1 will be activated and an alarm will be issued;

S2. When the water levels of the No. 1 pool, No. 3 pool, and No. 4 pool are all higher than the low and low water levels, and some water levels are lower than the low water level, three multistage centrifugal pumps at the water intake pumping station 1 are started;

S3. When the water levels of No. 1 pool, No. 3 pool, and No. 4 pool are all higher than the low water level, and some water levels are lower than the middle water level, two multi-stage centrifugal pumps at the water intake pumping station start;

S4. The water levels of the No. 1 pool, No. 3 pool, and No. 4 pool are all higher than the middle water level, and some of the water levels are lower than the high water level. A multi-stage centrifugal pump at the water intake pumping station 1 is started;

S5. The water levels of No. 1 pool, No. 3 pool, and No. 4 pool are all higher than the high water level, and the multi-stage centrifugal pumps of the water intake pumping station 1 are all shut down.

S6. The water levels in the No. 1 pool, No. 3 pool, and No. 4 pool are higher than the high and high water levels. All the multistage centrifugal pumps of the water intake pumping station 1 are shut down and an alarm is given.

S7. When the water level of a pool is one grade higher than other water levels, its water inlet valve is automatically closed (such as when No. 4 pool reaches the middle water level and No. 1 pool is still at a low water level, automatically closes the water inlet valve of No. 4 pool). When the water levels of all pools reach the same level, their water inlet valves will automatically open.

The control steps of the No. 2 pool:

S1. When the water level of the No. 2 pool is lower than the low and low water level, the two multistage centrifugal pumps of the pressurized pumping station 2 start and give an alarm;

S2. When the water level of the No. 2 pool is higher than the low water level and lower than the low water level, two multistage centrifugal pumps in the booster pumping station 2 are started;

S3. When the water level of the No. 2 pool is higher than the low water level and lower than the high water level, a multistage centrifugal pump in pressurization pumping station 2 starts;

S4. When the water level of the No. 2 pool is higher than the high water level and lower than the high water level, all the multi-stage centrifugal pumps of the booster pump station 2 are stopped;

S5. When the water level in the No. 2 pool is higher than the high water level, all the multistage centrifugal pumps in the booster pumping station 2 stop and an alarm is given.

Various embodiments of the present invention have been described above, the above description is illustrative, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and alterations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims (8)

1. A ladder water supply system, characterized in that the water supply system comprises a water intake pump station (1), a pressurized pump station (2), No. 1 pool, No. 2 pool, No. 3 pool, No. 4 pool, water supply pipelines, Control valves and control cabinets installed on each water supply pipeline; Two vacuum pumps and four multi-stage centrifugal pumps are arranged in the water intake pumping station (1), the water inlet of the water intake pumping station (1) is connected to the reservoir (3) through the water supply pipeline, and the water outlets of the water intake pumping station (1) are respectively connected to No. The water inlets of pools, pool No. 3 and pool No. 4; Three multistage centrifugal pumps are arranged in the pressurized pump station (2), and the elevation of the pressurized pump station (2) is lower than the No. 1 pool, and the water inlet of the aforementioned pressurized pump station (2) is connected to the No. 1 pool through a water supply pipeline The water outlet of the pressurized pump station (2) is connected to the water inlet of the No. 2 pool; Each control signal terminal of the control cabinet is respectively connected with the corresponding control signal terminals of the water intake pumping station (1), the boosting pumping station (2) and each control valve; The aforementioned No. 1 pool, No. 3 pool and No. 4 pool are at low-order elevation positions, and water is supplied to the corresponding elevation positions of each pool respectively. No. 2 pool is at a high-order elevation position, and this pool is supplied with water by No. Location water supply. 2. A kind of ladder water supply system according to claim 1, characterized in that, the elevation of the reservoir (3) is 45m, the elevation of the water intake pump station (1) is 50m, and the elevation of the pressurization pump station (2) is 125m; the elevation of No.1 pool is 130m, the elevation of No.2 pool is 320m, the elevation of No.3 pool is 125m, and the elevation of No.4 pool is 115m. 3. A ladder water supply system according to claim 1, characterized in that said No. 1 pool, No. 2 pool, No. 3 pool, and No. 4 pool adopt reinforced concrete structures, all of which are rectangular pools. 4. A ladder water supply system according to claim 1, characterized in that: The capacity of the No. 1 pool is 1000m ³ , the maximum water level is 5m, and the warning high water level is 4.5m, the high water level is 4m, the middle water level is 2.5m, the low water level is 1m, and the warning low water level is 0.5m; The capacity of the No. 2 pool is 2000m ³ , the maximum water level is 5m, and the warning high water level is 4.5m, the high water level is 4m, the middle water level is 2.5m, the low water level is 1m, and the warning low water level is 0.5m; The capacity of the No. 3 pool is 800m ³ , the maximum water level is 4m, the warning high water level is 3.5m, the high water level is 3m, the middle water level is 2m, the low water level is 1m, and the warning low water level is 0.5m; The capacity of the No. 4 pool is 800m ³ , the maximum water level is 4m, and the warning high water level is 3.5m, the high water level is 3m, the middle water level is 2m, the low water level is 1m, and the warning low water level is 0.5m. 5. A kind of ladder water supply system according to claim 1, characterized in that, the head of the multistage centrifugal pump of the water intake pump station (1) is 130m, and the head of the multistage centrifugal pump of the booster pump station (2) is 130m. It is 215m. 6. A ladder water supply system according to claim 1, characterized in that, the No. 1 pool, the No. 2 pool, the No. 3 pool, and the No. 4 pool are equipped with pool level gauges in the pools, and the pool liquid The level gauge is used to detect the liquid level height of each pool, and the detection signal output end of the pool liquid level gauge is connected with the corresponding detection signal input end of the control cabinet. 7. A ladder water supply system according to claim 1, characterized in that, the water inlet pipelines of the No. 1 pool, the No. 2 pool, the No. 3 pool, and the No. 4 pool are also provided with remote control float valves. The float valve automatically closes when the water level of the pool rises to the preset water level to prevent overflow caused by the water level of the pool being too high. 8. A ladder water supply system according to claim 6, characterized in that the pool level gauge is an ultrasonic level gauge, and the pool water level signal is transmitted to the control cabinet through an optical transceiver.