A highly efficient, energy-saving and environmentally friendly combined zoned pressurized water supply system

Abstract

The invention relates to the field of water supply, and discloses a high-efficiency, energy-saving and environmentally friendly combined zoned booster water supply system, which supplies water to the low zone, middle zone and top zone of a high-rise building respectively, and comprises a high-level water tank, a water tank water replenishment pump, a high-level booster pump, a low-level water tank and corresponding pipelines; the low-level water tank is arranged on the ground or below the ground, a municipal water supply pipe is connected to the low-level water tank inlet, and the low-level water tank outlet is connected to the water tank water replenishment pump; the high-level water tank and the high-level booster pump are located above the top zone, the water tank water replenishment pump is connected to the high-level water tank inlet through a water replenishment pipe, the high-level water tank outlet is respectively connected to the high-level booster pump and a gravity self-flow pipe, the high-level booster pump outlet is connected to the high-level booster pipe, and the high-level booster pump inlet is connected to the water replenishment pipe through a bypass; the municipal water supply pipe is connected to the low-level water inlet pipe, the high-level booster pipe is connected to the top-level water supply pipe, and the gravity self-flow pipe is connected to the middle-level water supply pipe; the high-level water tank is provided with a high-level water tank automatic cleaning device, and the water inlet pipe of the high-level water tank automatic cleaning device is connected to the high-level booster pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of building water supply, and in particular relates to a high-efficiency, energy-saving and environmentally friendly combined zoned pressurized water supply system. Background Art

[0002] In the past, when the capacity of urban water plants was insufficient, the water supply capacity of the pipe network was poor, and the water pressure in the city was generally low, rooftop water tanks were set up to use the residual pressure of the pipe network to replenish water at night, and water was discharged when the pressure of the pipe network dropped during the peak water use period, which alleviated the problem of insufficient water supply capacity, effectively solved the contradiction between supply and demand, and stabilized the water supply pressure. However, most of the old water tanks are reinforced concrete structures, and the rough inner walls are easy to adhere to dirt and breed moss. The poor sealing allows external pollutants to enter the water tank and pollute the water quality. Moreover, with the increasing maturity of frequency conversion technology and the improvement of people's requirements for water quality, the current high-rise building water supply has abandoned the reinforced concrete structure water tank and adopted a stainless steel water tank with a frequency conversion water pump water supply mode. Its biggest advantage is that the water supply system has no secondary pollution and a high degree of automation; however, its disadvantages are also obvious. In order to ensure the water supply of users, the variable frequency water pump needs to run continuously. During the peak water use period, the water pump operates at a high frequency to maintain a high efficiency state. During the low water use period, the water pump operates at a low frequency, which is inefficient and energy-saving. In addition, the water pump operates inefficiently for 2 to 6 hours a day, which makes the water pump motor easy to damage and consumes a lot of electricity. The most unfavorable point of variable frequency water supply is that the pressure fluctuation is large, which reduces the user's water comfort. With the gradual increase of high-rise buildings in cities, the accumulated useless energy consumption has reached an astonishing amount. Moreover, with the increase of high-rise and even super-high-rise buildings, the use of variable frequency water pump water supply mode requires the setting of high-power and high-pressure head water pump superimposed pressure water supply to meet the stable water pressure of rooftop users during peak water use period, while the water pump basically operates at a low frequency during low water use period, resulting in an increase in the reactive power of the equipment. Summary of the invention

[0003] In order to overcome the above technical problems, the present invention provides a self-cleaning rooftop water tank partition water supply system and method.

[0004] To achieve the above object, the present invention is implemented through the following technical solutions.

[0005] A high-efficiency, energy-saving and environmentally friendly combined zoned water supply system for high-rise buildings, which supplies water to the low area, middle area and top area of ​​the high-rise building respectively, and comprises a high-level water tank, a water tank replenishment pump, a high-level booster pump, a low-level water tank and corresponding pipelines; the low-level water tank is arranged on the ground or below the ground, the municipal water supply pipe is connected to the low-level water tank inlet, and the low-level water tank outlet is connected to the water tank replenishment pump; the high-level water tank and the high-level booster pump are located above the top area, the water tank replenishment pump is connected to the high-level water tank inlet through the replenishment pipe, the high-level water tank outlet is respectively connected to the high-level booster pump and the gravity self-flow pipe, the high-level booster pump outlet is connected to the high-level booster pipe, and the high-level booster pump inlet is connected to the replenishment pipe through a bypass; the municipal water supply pipe is connected to the low-level water inlet pipe, the high-level booster pipe is connected to the top-level water supply pipe, and the gravity self-flow pipe is connected to the middle-level water supply pipe; the high-level water tank is provided with a high-level water tank automatic cleaning device, and the high-level water tank automatic cleaning device water inlet pipe is connected to the high-level booster pipe.

[0006] The low area of ​​a high-rise building generally refers to the floor determined by the pressure value of the municipal water supply pressure. The top floor area is the floor below the high-level water tank where the gravity self-flow water supply pressure is insufficient. The middle area is the floor above where the municipal water supply is insufficient to directly supply water. At present, the water tank cleaning device and system invented by Nanjing Ershun Technology Development Co., Ltd. does not need to add independent energy, is seamlessly connected to the water supply system, and automatically operates according to the preset water tank cleaning cycle. According to the minimum requirements of the national standard, the water tank is cleaned at least once every six months, and the high standard can be once every quarter. The water supply mode is automatically switched before the water tank is cleaned to ensure that the water tank cleaning process does not affect the normal water supply. The cleaning time can be preset, and the water storage capacity of the water tank can be optimized according to the preset time. At the lowest water storage level, there is no need for personnel to enter the closed water tank, and the cleaning equipment is automatically started. The cleaning water is automatically emptied during the cleaning process. After the cleaning process is completed, the system automatically switches to the water tank water supply mode to complete the cleaning steps. The municipal water supply pipe supplies water to the low-level water tank, which is automatically adjusted by the low-level water tank, and the water supply is well guaranteed: the low-level water tank replenishes water during the low peak of water supply, and the water tank is closed during the peak. When replenishing water to the high-level water tank, the water tank replenishment pump runs at rated power frequency, which is the highest efficiency point of the water pump, and is highly efficient and energy-saving; the water tank stops running after it is filled. Since the water tank has a certain volume, the interval between operation and shutdown of the water tank water supply pump group is relatively long, and there is no problem of frequent startup. Compared with variable frequency operation, it has the lowest energy consumption and the equipment is not easily damaged. The high-level water tank supplies water to the lower-level users. The users in the top area of ​​the third to fifth floors close to the high-level water tank have insufficient pressure due to the small height difference. A high-level booster pump can be used to pressurize the water supply. The users in the middle area below can completely meet the water supply pressure through the potential energy of the high-level water tank, with zero energy consumption. At the same time, a high-level booster pump can be used to supply water to the cleaning device to make full use of the equipment.

[0007] It further includes a variable frequency booster pump, and the outlet of the low-level water tank is connected to the variable frequency booster pump; the middle area is divided into a high area and a middle area, the gravity self-flow pipe is connected to the high-level water supply pipe, and the variable frequency booster pump is connected to the middle-level water supply pipe through the low-level booster pipe; the low-level water tank is provided with a low-level water tank automatic cleaning device. As the floors increase, the height difference between the lower part of the middle area and the high-level water tank is too large, and the capacity of the high-level water tank is limited and cannot meet the needs of all the middle layers. Therefore, the middle layer is divided into a high area and a middle area. The area where the water tank volume can meet the needs is the high area, and the rest is the middle area. The middle area is supplied with water by the low-level water tank through a variable frequency booster pump.

[0008] Furthermore, in high-rise buildings with equipment layers, high-level water tanks, high-level booster pumps, upward water supply pumps and corresponding pipelines are installed in each equipment layer; the area from the ground to the first equipment layer is divided into a low area, an intermediate area and a top area; the area between two adjacent equipment layers is divided into a booster area and a gravity area, and the high-level water tank in the lower equipment layer is connected to the inlet of the high-level water tank in the upper equipment layer through a pipeline via the upward water supply pump, and the outlet of the high-level water tank in the upper equipment layer is respectively connected to the high-level booster pump and the gravity gravity pipe, the outlet of the high-level booster pump is connected to the high-level booster pipe connected to the booster area water supply pipe, and the gravity gravity pipe is connected to the gravity area water supply pipe. For super high-rise buildings, the pressure on the required equipment and pipe network to directly replenish water from the low-level water tank to the high-level water tank installed on the roof is greatly increased, and the investment in water supply pumps and pipe networks is several times that of ordinary water supply pumps. Moreover, the volume of the high-level water tank on the roof is limited and cannot meet the water supply of all floors in the intermediate area. Therefore, a high-level water tank is also set in the equipment layer, and the area between two adjacent equipment layers uses the high-level water tank in the equipment layer to supply water, and the water supply method is the same as that of the high-level water tank. The boosting area is the floor below the high-level water tank where the gravity self-flow water supply pressure of the water tank is insufficient, and the self-flow area is the area below the boosting area and above the lower equipment layer.

[0009] The high-level water tank in the equipment layer is replenished with water from the water tank in the lower layer. This relay replenishment method does not require the water replenishment pump to use excessively high power and pressure head.

[0010] Furthermore, a water flow stirring device is provided on the roof water tank, the low-level water tank, and the equipment layer water tank. The water flow stirring device is a water spray pipe extending into the water tank, and the water spray pipe is connected to the boost pipe outside each water tank. The water tank is supplied with water stably for a long time. Due to the sedimentation effect, a small amount of impurities in the water will gather in the dead corners of the water flow in the water tank. After the impurities gather, they will form dirt, which will inevitably increase the frequency and time of cleaning. By stirring the water in the water tank, the sedimentation and aggregation of impurities can be reduced, and the cleaning cycle can be appropriately extended accordingly. A water flow stirring device can be added, or an automatic cleaning device can be used to stir the stored water using the water spraying motion of the cleaning device.

[0011] Furthermore, the high-position booster pump includes two water pumps, which are connected by pipelines and valves, and the two water pumps are connected in parallel and in series. For boosted water supply, water pumps are generally set up with one for use and one for backup. The pressure required in the top area is relatively small, and it is only necessary to ensure a pressure of 0.2~0.3MPa. A small pump with a pressure head of 0.2~0.3MPa can be selected. According to relevant specifications, two pumps need to be installed in parallel, one for use and one for backup, resulting in one pump being idle for a long time. However, the cleaning device requires a pressure of more than 0.5MPa. At this time, the two pumps originally installed in parallel can be connected through pipelines and valves to form two pumps in series, so as to achieve the purpose of superimposed pressure boosting to meet the requirements of the cleaning device.

[0012] Furthermore, a branch pipe is provided at the outlet of the high-position booster pump, and the branch pipe is connected to the water supply pipe of the top area; the bypass is also connected to the gravity self-flow pipe. When cleaning the water tank, water is supplied to users in the top area through the branch pipe, and water is supplied to users in the middle area through the bypass, which solves the contradiction that users cannot be guaranteed to have water when cleaning the water tank.

[0013] A self-cleaning rooftop water tank partition water supply method is further provided.

[0014] Normal water supply: The municipal water supply pipe injects water into the low-level water tank. When the water level in the high-level water tank reaches the lower limit, the water tank replenishment pump is started to supply water from the low-level water tank to the high-level water tank. When the water level in the high-level water tank reaches the upper limit, the water tank replenishment pump stops; the high-level water tank supplies water to the middle area through the gravity self-flow pipe; the high-level water tank supplies water to the top floor area through the roof booster pump group;

[0015] Cleaning the high-level water tank: During low water usage peaks, the high-level water tank is drained of excess water, the roof water tank automatic cleaning device is started, the water tank replenishment pump is operated, and water is supplied to the high-level water tank automatic cleaning device via the bypass high-level booster pump to clean the high-level water tank. After cleaning, the cleaning water is drained, the normal water supply mode is restored, and the cleaning steps are completed.

[0016] Furthermore, the low zone is directly supplied with water by the municipal water supply pipe, the middle zone is pressurized with water through the low-level water tank and the variable frequency booster pump, the high-level water tank is replenished with water by the low-level water tank and the water tank make-up pump, the high-level water tank in the first equipment layer is supplied with water by the low-level water tank and the variable frequency booster pump, and the high-level water tank in the remaining equipment layers is supplied with water by the high-level water tank in the lower equipment layer and the upward make-up pump.

[0017] Furthermore, when supplying water to the top area, the valve is adjusted to connect the high-position booster pumps in parallel, and a single high-position booster pump is used to supply water to the top area, while the other is kept as a standby; when the high-position water tank is automatically cleaned, the valve is adjusted to connect the high-position booster pumps in series, and two high-position booster pumps are connected in series and superimposed to supply water to the high-position water tank automatic cleaning device; when cleaning the water tank, one high-position booster pump is used to supply water to the top area through a branch pipe, and a bypass is used to supply water to users in the middle area.

[0018] Furthermore, the water flow agitation device can be started regularly or irregularly. During normal water supply, the system requirements are set to fully utilize the high-pressure jet function of the water tank automatic cleaning equipment. When the water tank is in normal water storage state, the cleaning device is started. Under the impact of the high-pressure jet of the cleaning equipment, the water in the water tank is fully rotated and flowed to prevent the precipitation and adsorption of fine impurities, keep the inner wall of the water tank clean and the water storage hygienic, reduce the difficulty of cleaning, and save energy and protect the environment.

[0019] Beneficial effects: Compared with the prior art, the advantages of the present invention are:

[0020] 1) Compared with the full variable frequency booster water supply system, it can make the most of the rated power of the water pump to operate at the highest efficiency point of the power frequency, and locally configure small power variable frequency water supply, so that the overall system operation efficiency is high;

[0021] 2) Compared with traditional water tanks, it has automatic cleaning function. During the cleaning of the water tank, it does not affect the normal water supply of the normal system, which is environmentally friendly and hygienic;

[0022] 3) On the premise that the water tank has an automatic cleaning function, configure a high-level water tank to make full use of the gravity flow of the high-level water tank, local low-power variable frequency boost water supply, and effectively utilize the water supply pressure of the municipal pipe network to automatically switch the water supply mode to fully reduce energy consumption;

[0023] 4) High degree of intelligence, automatically analyzing the water consumption of the water supply system, determining the water level of the water tank, ensuring complete replacement within the water storage time required by the national standard, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The high-efficiency, energy-saving and environmentally friendly combined zoned pressurized water supply system of Example 1;

[0025] Figure 2 The high-efficiency, energy-saving and environmentally friendly combined zoned pressurized water supply system of Example 2;

[0026] Figure 3 The high-efficiency, energy-saving and environmentally friendly combined zoned pressurized water supply system of Example 3;

[0027] Figure 4 The high-efficiency, energy-saving and environmentally friendly combined zoned pressurized water supply system of Example 4;

[0028] Figure 5 This is a schematic diagram of the series-parallel connection of high-position booster pumps;

[0029] Including 1. Low-level water tank, 2. Automatic cleaning device for low-level water tank, 3. Municipal water supply pipe, 4. Variable frequency booster pump, 5. Water tank make-up pump, 6. Low-level booster pipe, 7. Make-up pipe, 8. Gravity self-flow pipe, 9. High-level booster pipe, 10. High-level booster pump, 11. High-level water tank, 12. Automatic cleaning device for high-level water tank, 13. Bypass, 14. Branch pipe, 15. Upward make-up pump. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below with reference to examples. The raw materials used in the present invention are all commercially available products.

[0031] Example 1

[0032] like Figure 1 As shown in the figure, taking a building with 11 floors above ground and one floor underground as an example, the pressure of the municipal water supply network is 0.3MPa. A low-level water tank and a water tank replenishment pump are set on the first floor or the first floor below ground, and a high-level water tank and a high-level booster pump are set on the roof. The 1st to 5th floors are directly supplied with water by the municipal water supply pipe. The municipal water supply pipe is connected to the low-level water tank, and the low-level water tank is connected to the water tank replenishment pump to supply water to the high-level water tank through the replenishment pipe.

[0033] The high-level water tank supplies water to the 9th to 11th floors through a high-level booster pump via a single high-level booster pipe, and the high-level water tank supplies water to the 6th to 8th floors through a gravity self-flow pipe. An automatic cleaning device for the low-level water tank is installed in the low-level water tank. An automatic cleaning device for the high-level water tank is installed in the high-level water tank. The inlet of the high-level booster pump is connected to the water supply pipe through a bypass, and two high-level booster pumps are connected in series to provide water under pressure.

[0034] Normal water supply method of the high-level water tank: when the water level in the high-level water tank reaches the lower limit, the variable frequency booster pump is started to replenish water from the low-level water tank to the high-level water tank. When the water level in the high-level water tank reaches the upper limit, the variable frequency booster pump stops; the high-level water tank supplies water to the 6th to 8th floors by gravity; the high-level water tank uses the variable frequency high-level booster pump to boost water supply to the 9th to 11th floors, and the 1st to 5th floors are directly supplied with water by the municipal water supply pipe.

[0035] Cleaning the water tank: Clean the roof water tank regularly according to the national standard, at least once every six months, and once every quarter if it is a high requirement. The cleaning time can be preset. When the water usage is low, the high-level water tank is drained of the remaining water, and the automatic cleaning device of the roof water tank is started. The water tank replenishment pump is running, and water is supplied to the high-level booster pump through the bypass. The two high-level booster pumps are connected in series to the high-level water tank automatic cleaning device to clean the high-level water tank. After cleaning, the cleaning water is drained, and the normal water supply mode is restored to complete the cleaning steps. Stirring during tank cleaning to prevent sedimentation and flocculation: During normal water supply, the high-level cleaning device is started regularly, and a single high-level booster pump draws water from the high-level water tank and sprays water through the cleaning device to stir the water inside the water tank to prevent fine impurities from precipitating and adsorbing, keep the inner wall of the water tank clean and the water storage hygienic, reduce the difficulty of cleaning, and extend the cleaning cycle.

[0036] The average energy consumption after using the self-cleaning rooftop water tank partition water supply system is 0.48kW.h / m 3 .

[0037] The conventional low-level water tank is used in conjunction with a variable frequency booster pump to provide uninterrupted pressure-maintaining water supply to all users upstairs, with an average energy consumption of 0.92kW.h / m 3 .

[0038] Example 2

[0039] like Figure 2 As shown in the figure, taking a building with 18 floors above ground and one floor underground as an example, the pressure of the municipal water supply network is 0.3MPa. A low-level water tank, a water tank replenishment pump and a variable frequency booster pump are set on the first floor or the negative first floor, and a high-level water tank and a high-level booster pump are set on the roof. The 1st to 5th floors are directly supplied with water by the municipal water supply pipe. The municipal water supply pipe is connected to the low-level water tank, and the low-level water tank is connected to the water tank replenishment pump to supply water to the high-level water tank through the replenishment pipe. The low-level water tank is connected to the variable frequency booster pump to pressurize and supply water to the 6th to 11th floors through the low-level booster pipe. The high-level water tank pressurizes and supplies water to the 16th to 18th floors through a single high-level booster pump through the high-level booster pipe, and the high-level water tank supplies water to the 12th to 15th floors through the gravity self-flow pipe. A low-level water tank automatic cleaning device is installed in the low-level water tank. An automatic high-position water tank cleaning device is installed in the high-position water tank, and the inlet of the high-position booster pump is connected to the water supply pipe through a bypass, and two high-position booster pumps are connected in series to supply water.

[0040] The method for supplying water to a partitioned rooftop water tank, water tank cleaning, and stirring to prevent sedimentation are the same as in Example 1.

[0041] The average energy consumption after using the self-cleaning rooftop water tank partition water supply system is 0.63 kW.h / m 3 .

[0042] Use conventional low-level water tanks with variable frequency booster pumps to provide uninterrupted pressure-maintaining water supply to all users upstairs, with an average energy consumption of 1.25 kW .h / m 3 .

[0043] Example 3

[0044] like Figure 3 As shown in the figure, taking a building with 33 floors above ground and two floors underground as an example, the pressure of the municipal water supply network is 0.3MPa. A low-level water tank, a water tank replenishment pump and two sets of variable frequency booster pumps are set on the first floor or the negative first floor, and a high-level water tank and a high-level booster pump are set on the roof. The 1st to 5th floors are directly supplied with water by the municipal water supply pipe. The municipal water supply pipe is connected to the low-level water tank, and the low-level water tank is connected to the water tank replenishment pump to supply water to the high-level water tank through the replenishment pipe. The low-level water tank is connected to a set of variable frequency booster pumps to pressurize water to the 6th to 11th floors through the low-level booster pipe. The low-level water tank is connected to another set of variable frequency booster pumps to pressurize water to the 12th to 18th floors through the low-level booster pipe. The high-level water tank supplies water to the 31st to 33rd floors through a single high-level booster pump via a high-level booster pipe, and supplies water to the 26th to 30th floors through a gravity self-flow pipe. The high-level water tank supplies water to the 19th to 25th floors through a gravity self-flow pipe and a pressure reducing valve. An automatic cleaning device for the low-level water tank is installed in the low-level water tank. An automatic cleaning device for the high-level water tank is installed in the high-level water tank. The inlet of the high-level booster pump is connected to the water supply pipe through a bypass, and two high-level booster pumps are connected in series to provide water under pressure.

[0045] The self-cleaning rooftop water tank partition water supply method, water tank cleaning, stirring and anti-sedimentation are the same as Example 1.

[0046] The average energy consumption after using the self-cleaning rooftop water tank partition water supply system is 0.97 kW.h / m 3 .

[0047] The conventional low-level water tank is used in conjunction with a variable frequency booster pump group to provide uninterrupted pressure-maintaining water supply to all users upstairs, with an average energy consumption of 1.44 kW .h / m 3 .

[0048] Example 4

[0049] like Figure 4 As shown, the water supply mode of super high-rise buildings is based on the equipment layer as the boundary. The pressure of the municipal water supply network is 0.3MPa. A low-level water tank and a water tank replenishment pump are set on the first floor or the negative first floor, and a high-level water tank and a high-level booster pump are set on the equipment layer and the roof. The area from the ground to the first equipment layer is divided into the low area, the middle area, and the top area; the area between two adjacent equipment layers is divided into the booster area and the gravity area. The high-level water tank in the lower equipment layer is connected to the inlet of the high-level water tank in the upper equipment layer through the upward replenishment pump through the pipeline. The outlet of the high-level water tank in the upper equipment layer is connected to the high-level booster pump and the gravity gravity pipe respectively. The outlet of the high-level booster pump is connected to the high-level booster pipe connected to the booster area water supply pipe, and the gravity gravity pipe is connected to the gravity area water supply pipe. The high-level water tank in the equipment layer is replenished by the water tank below it.

[0050] The method for supplying water to a partitioned rooftop water tank, water tank cleaning, and stirring to prevent sedimentation are the same as in Example 1.

[0051] The present invention has been described according to the above embodiments. It should be understood that the above embodiments do not limit the present invention in any form. Any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A highly efficient, energy-saving and environmentally friendly combined zoned booster water supply system, which supplies water to the lower area, middle area and top area of ​​a high-rise building, characterized in that: It includes a high-level water tank, a water tank water replenishment pump, a high-level booster pump, a low-level water tank and corresponding pipelines; the low-level water tank is arranged on the ground or below the ground, the municipal water supply pipe is connected to the low-level water tank inlet, and the low-level water tank outlet is connected to the water tank water replenishment pump; the high-level water tank and the high-level booster pump are located above the top floor area, the water tank water replenishment pump is connected to the high-level water tank inlet through the water replenishment pipe, the high-level water tank outlet is respectively connected to the high-level booster pump and the gravity self-flow pipe, the high-level booster pump outlet is connected to the high-level booster pipe, and the high-level booster pump inlet is connected to the water replenishment pipe through a bypass; the municipal water supply pipe is connected to the low-level water inlet pipe, the high-level booster pipe is connected to the top-level water supply pipe, and the gravity self-flow pipe is connected to the middle-level water supply pipe; the high-level water tank is provided with a high-level water tank automatic cleaning device, and the water inlet pipe of the high-level water tank automatic cleaning device is connected to the high-level booster pipe; It also includes a variable frequency booster pump, and the outlet of the low-level water tank is connected to the variable frequency booster pump; the middle area is divided into a high area and a middle area, the gravity self-flow pipe is connected to the high area water supply pipe, and the variable frequency booster pump is connected to the middle area water supply pipe; the low-level water tank is provided with a low-level water tank automatic cleaning device; In high-rise buildings with equipment layers, high-level water tanks, high-level booster pumps, upward water supply pumps and corresponding pipelines are installed in each equipment layer; the area from the ground to the first equipment layer is divided into a low zone, a middle zone and a top zone; the area between two adjacent equipment layers is divided into a booster zone and a gravity zone, the high-level water tank in the lower equipment layer is connected to the inlet of the high-level water tank in the upper equipment layer through the upward water supply pump through a pipeline, the outlet of the high-level water tank in the upper equipment layer is respectively connected to the high-level booster pump and the gravity self-flow pipe, the outlet of the high-level booster pump is connected to the water supply pipe of the booster zone, and the gravity self-flow pipe is connected to the water supply pipe of the gravity zone.

2. According to claim 1, a high-efficiency, energy-saving and environmentally friendly combined zoned booster water supply system is characterized in that: A water flow stirring device is arranged on the high-position water tank and the low-position water tank. The water flow stirring device is a water spray pipe extending into the water tank. The water spray pipe is connected with a booster pipe outside each water tank.

3. According to the high-efficiency, energy-saving and environmentally friendly combined zoned booster water supply system of claim 1, it is characterized in that: The high-position booster pump comprises two water pumps, which are connected and switched through pipelines and valves, and the two water pumps can be connected in parallel or in series.

4. According to the high-efficiency, energy-saving and environmentally friendly combined zoned booster water supply system of claim 1, it is characterized in that: A branch pipe is provided at the outlet of the high-position booster pump, and the branch pipe is connected to the water supply pipe of the top layer area; the bypass is also connected to the gravity self-flow pipe.

5. A method for supplying water using a high-efficiency, energy-saving and environmentally friendly combined zoned booster water supply system according to any one of claims 1 to 4, characterized in that: Normal water supply: The municipal water supply pipe replenishes water to the low-level water tank. When the water level in the high-level water tank reaches the lower limit, the water tank replenishment pump is started to supply water from the low-level water tank to the high-level water tank. When the water level in the high-level water tank reaches the upper limit, the water tank replenishment pump stops; the high-level water tank supplies water to the middle area through the gravity self-flow pipe; the high-level water tank supplies water to the top floor area through the roof booster pump group; Cleaning the high-level water tank: During low water usage peaks, the high-level water tank is drained of excess water, the roof water tank automatic cleaning device is started, the water tank replenishment pump is operated, and water is supplied to the high-level water tank automatic cleaning device via the bypass high-level booster pump to clean the high-level water tank. After cleaning, the normal water supply mode is restored to complete the cleaning steps.

6. The method according to claim 5, characterized in that The low zone is directly supplied with water by the municipal water supply pipe, the middle zone is pressurized with water through the low-level water tank and the variable frequency booster pump, the high-level water tank is replenished with water by the low-level water tank and the water tank make-up pump, the high-level water tank in the first equipment layer is supplied with water by the low-level water tank and the variable frequency booster pump, and the high-level water tank in the remaining equipment layers is supplied with water by the high-level water tank in the lower equipment layer and the upward make-up pump.

7. The method according to claim 5, characterized in that When supplying water to the top layer area, the valve is adjusted to connect the high-position booster pumps in parallel, and a single high-position booster pump is used to supply water to the top layer area, while the other is kept as a standby; when the high-position water tank is automatically cleaned, the valve is adjusted to connect the high-position booster pumps in series, and two high-position booster pumps are connected in series and superimposed to supply water to the high-position water tank automatic cleaning device, and one high-position booster pump is used to supply water to the top layer area through a branch pipe.

8. The method according to claim 5, characterized in that Start the water stirring device regularly or irregularly.

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