Special pump for high-rise partition and water supply control system thereof

Abstract

The invention relates to a high-rise partition special pump which comprises a water pump body, the water inlet end of the water pump body is connected with a water inlet mechanism, the water outlet end of the water pump body is provided with a pressurizing mechanism used for pressurizing water flow, the top of the pressurizing mechanism is provided with a water outlet supporting piece, and the side faces of the pressurizing mechanism and the water outlet supporting piece are provided with a plurality of water outlet mechanisms. The top of the water outlet supporting piece is further provided with a backflow mechanism connected to the water outlet mechanisms. When the water consumption of any one or two areas is small, but the water consumption of other areas is large, the water can be effectively distributed to the areas needing water through the backflow mechanism, and self-adjustment can be achieved according to the residential water consumption under the condition that the whole pump power is not changed.

Description

Technical Field

[0001] The invention relates to the technical field of water pumps, and in particular to a high-rise partition-specific pump and a water supply control system thereof. Background Art

[0002] In daily life, the tap water we use is transported to our homes through water pipes; the water transported through water pipes is generally pressurized, but some buildings are too high, which will lead to insufficient water pressure and cannot continue to supply upwards, so many buildings will start secondary water supply. For this kind of high-rise building water supply, it is usually divided into high, medium and low partitions according to the vertical direction. The common practice on the market is to use an independent set of water supply equipment for each vertical partition, which is not related to each other. Due to the characteristics of domestic water supply, the flow rate varies widely, the water supply time of small and medium flow is long, and the water supply time during peak hours is short. The water supply equipment is designed and selected according to the maximum flow rate, which causes the supporting water pumps of the water supply equipment in each partition to be in small and medium flow conditions for a long time, with low efficiency and high energy consumption. This is one of the main reasons for the high energy consumption of water supply equipment in high-rise buildings.

[0003] The application announcement number is CN118345910A, which discloses a multi-user water distribution flow control device. Combined with its specification and drawings, its scheme monitors the amount of water consumption per unit time of the user through a first flow meter, and then controls the transmission motor to rotate through a single-chip microcomputer, and the transmission motor drives the second positive threaded rod to rotate, and the second positive threaded rod drives the second transmission block and the adjustment plate to move, thereby adjusting the water flow in the control box, thereby realizing real-time adjustment and control of the user's water flow according to the user's water flow, thereby realizing automatic regulation of the water flow of multiple users. However, in this scheme, the water supply of each control box in each high, medium and low zone by the main line is fixed. If the water consumption in the middle zone decreases, the water supply demand in the high zone or the low zone increases and the water in the control box is insufficient for the user to use, but the water in the middle zone cannot be replenished to other areas that need water, causing inconvenience during use. Summary of the invention

[0004] The present invention mainly aims at the problems existing in the above-mentioned water pump when working in high-rise water supply, and invents a high-rise partition-specific pump and its water supply control system. When the water consumption of any one or two areas is small but the water consumption of other areas is large, the reflux mechanism can be effectively utilized to distribute the water to the areas in need of water, and the pump can self-regulate according to the water consumption of residents while keeping the overall pump power unchanged.

[0005] The inventive objective of the present invention is achieved through the following technical scheme: a high-rise partition special pump, comprising a water pump body, the water inlet end of the water pump body is connected to a water inlet mechanism, the water outlet end of the water pump body is provided with a pressurizing mechanism for pressurized water flow, the top of the pressurizing mechanism is provided with a water outlet support, the sides of the pressurizing mechanism and the water outlet support are provided with a plurality of water outlet mechanisms, and the top of the water outlet support is also provided with a reflux mechanism connected to each water outlet mechanism.

[0006] Preferably, the water pump body includes a water inlet seat, a water pump housing and a water inlet joint, the water inlet seat and the water inlet joint are respectively connected to the bottom and top of the water pump housing through flanges, the water inlet mechanism is connected to one side of the water inlet seat, the pressurizing mechanism is connected to the top of the water inlet joint, and a drive motor is provided inside the water pump housing.

[0007] Preferably, the pressurizing mechanism includes a plurality of guide shells and a plurality of pump rods, and a plurality of guide shells are stacked between the top of the water inlet section and the water outlet support member, the side of the water inlet section and the side of the water outlet support member are provided with flanges and each pump rod is connected to the flange, an impeller is provided inside each guide shell, and a drive shaft of a drive motor is connected to each impeller.

[0008] Preferably, the water inlet mechanism comprises a water inlet joint, a quick-connect valve and a one-way valve, one side of the water inlet joint is connected to one end of the quick-connect valve, and a one-way valve is connected between the other end of the quick-connect valve and the water inlet seat.

[0009] Preferably, each of the water outlet mechanisms includes a water diversion joint, a check valve, a manual pressure regulating valve, a water outlet pipeline, an intelligent flow meter and a pressure sensor, one end of the water diversion joint is connected to one end of the check valve, the other end of the check valve is connected to one end of the manual pressure regulating valve, the other end of the manual pressure regulating valve is connected to one end of the water outlet pipeline, the other end of the water outlet pipeline is connected to one end of the intelligent flow meter, the other end of the intelligent flow meter is connected to an external pipeline network, a pressure sensor is also provided on the surface of the water outlet pipeline, and the cross-sectional area of ​​the water outlet pipeline is larger than the cross-sectional area of ​​the check valve.

[0010] Preferably, the reflux mechanism includes a reflux pipeline and an electric flow pressure regulating valve, one end of the reflux pipeline is open and connected to the top of the water outlet support, the other end of the reflux pipeline is closed and extends toward the water outlet mechanism at the lowest position, the water diversion joint in the water outlet mechanism at the top is connected to the surface of the reflux pipeline, and a plurality of electric flow pressure regulating valves are also provided on the surface of the reflux pipeline, and the water outlet end of each of the electric flow pressure regulating valves is connected to the surface of the water outlet pipeline.

[0011] A zoned water supply control system, using a high-rise zone-specific pump, includes the following control steps: S1: A number of water outlet pipes are respectively connected to the pipe networks in the high-rise area, middle-rise area and low-rise area of ​​the floor; S2: Adjust each manual pressure regulating valve so that the maximum water flow rate allowed to pass through the check valves in the high-level area, the middle-level area and the low-level area is the same or different; S3: The driving motor inside the guide housing drives each impeller to rotate so that the water inside the water inlet seat can continuously flow into the return pipe and the water outlet pipe within the rated power; S4: When the pressure sensor in any one area or two areas detects that the water pressure in the water outlet pipe of the area is lower than the set pressure, the reflux mechanism is started; S5: The reflux mechanism distributes the pressurized water inside the water outlet support to one or two areas where the pressure of the water outlet pipeline is less than the set pressure; S6: Connect the outlet pipes of the high-rise area, the middle-rise area and the low-rise area to the external dedicated pump groups respectively; S7: After the reflux mechanism is activated and the pressure sensor of the outlet pipe of any area detects that the pressure still cannot reach the set value, the dedicated pump group of the area is started; S8: When turned on, the external dedicated pump unit can deliver pressurized water to the inside of the water outlet pipeline in the designated area.

[0012] The operation of the reflux mechanism in S5 includes the following control steps: S51: For an area where the pressure of the water outlet pipe is lower than the set pressure, the electric flow pressure regulating valve of the area is started; S52: The electric flow pressure regulating valve distributes the water in the return pipe to the water outlet pipe in the designated area and increases the flow rate of the water outlet pipe in the area and gradually causes the pipe pressure to reach the set pressure.

[0013] In S4: if the intelligent flow meters in the high-level area, the middle-level area and the low-level area all detect that the water output is less than the set flow of each partition, the reflux mechanism will not be started; In S7: when the reflux mechanism is not started and the sum of the values ​​of the intelligent flow meters in the high-level area, the middle-level area and the low-level area is greater than the rated flow of the entire pump, the special pump group that satisfies the area where the outlet pipeline pressure is less than the set value is started.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. When the pressure sensor in any one or two areas detects that the water pressure of the water outlet pipe in the area is less than the set pressure, the reflux mechanism is started. The reflux mechanism can distribute the pressurized water inside the water outlet support to one or two areas where the pressure of the water outlet pipe is less than the set pressure. In this case, when the water consumption in any one or two areas is small but the water consumption in other areas is large, the reflux mechanism can be effectively used to distribute it to the area where water is needed. When the whole pump power remains unchanged, it can self-regulate according to the water consumption of residents, avoid frequent start-up of the external dedicated pump group, reduce the energy consumption of the whole pump, embody energy saving and environmental protection, and bring convenience when using; 2. If each intelligent flow meter in the high-rise area, the middle-rise area and the low-rise area detects that the flow has reached the set value and the pressure sensor detects that the pressure of each water pipe is constantly decreasing, indicating that the water demand is greater than the rated flow of the whole pump at this time, the dedicated pump group in each area is started. The design in this way makes the dedicated pump group start only when there is a specific urgent need for water, avoids frequent start-up of the dedicated pump group in each area, reduces the energy consumption of the whole pump, embodies energy saving and environmental protection, and brings convenience when using. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention; Figure 2 It is a partial stereogram of the present invention; Figure 3 It is a partial stereogram of the present invention; Figure 4 It is a partial cross-sectional view of the present invention.

[0016] Markings in the figure: 1. Pump body; 11. Water inlet seat; 12. Water inlet section; 13. Pump housing; 2. Water inlet mechanism; 21. Water inlet joint; 22. Quick-connect valve; 23. One-way valve; 3. Pressurizing mechanism; 31. Diversion housing; 32. Pump pull rod; 4. Water outlet support; 5. Water outlet mechanism; 51. Water diversion joint; 52. Check valve; 53. Manual pressure regulating valve; 54. Water outlet pipeline; 55. Intelligent flow meter; 56. Pressure sensor; 6. Backflow mechanism; 61. Backflow pipeline; 62. Electric flow pressure regulating valve. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings: like Figures 1 to 4As shown, a special pump for high-rise partitions includes a water pump body 1, wherein the water pump body 1 includes a water inlet seat 11, a water pump housing 13 and a water inlet section 12, wherein the water inlet seat 11 and the water inlet section 12 are respectively connected to the bottom and the top of the water pump housing 13 through flanges, the water inlet mechanism 2 is connected to one side of the water inlet seat 11, the pressurizing mechanism 3 is connected to the top of the water inlet section 12, a driving motor is arranged inside the water pump housing 13, and a water outlet support 4 is arranged on the top of the pressurizing mechanism 3, wherein the pressurizing mechanism 3 includes a plurality of flow guide housings 31 and a plurality of pump pull rods 32, a plurality of flow guide housings 31 are stacked between the top of the water inlet section 12 and the water outlet support 4, flanges are arranged on the side surfaces of the water inlet section 12 and the side surfaces of the water outlet support 4, and each pump pull rod 32 is connected to the flange, an impeller is arranged inside each flow guide housing 31, a driving shaft of the driving motor is connected to each impeller, and the pump pull rod 32 is fixedly connected to the water inlet section 12 by means of a flange. The top and the bottom of the water outlet support 4 are used to compress each guide housing 31, and the guide housings 31 are sealed with each other through sealing gaskets to prevent water leakage. The water inlet end of the water pump body 1 is connected to the water inlet mechanism 2, and the water inlet mechanism 2 includes a water inlet joint 21, a quick-connect valve 22 and a one-way valve 23. One side of the water inlet joint 21 is connected to one end of the quick-connect valve 22, and a one-way valve 23 is connected between the other end of the quick-connect valve 22 and the water inlet seat 11. The water inlet joint 21 is connected to an external water tank or pipeline for storing water, and the quick-connect valve 22 can quickly open or close the waterway. The one-way valve 23 is to prevent the water inside the water pump from flowing back. The driving motor and the impeller adopt common components in the prior art. When the rotating shaft of the driving motor rotates, it can drive the impeller inside each guide housing 31 to rotate, and the centrifugal force generated by the impeller when rotating can make the water flow to the top of the entire pump body.

[0018] In this embodiment, a plurality of water outlet mechanisms 5 are provided on the sides of the pressurizing mechanism 3 and the water outlet support member 4, and a reflux mechanism 6 connected to each water outlet mechanism 5 is also provided on the top of the water outlet support member 4. Specifically, each of the water outlet mechanisms 5 includes a water diversion joint 51, a check valve 52, a manual pressure regulating valve 53, a water outlet pipeline 54, an intelligent flow meter 55 and a pressure sensor 56. One end of the water diversion joint 51 is connected to one end of the check valve 52, the other end of the check valve 52 is connected to one end of the manual pressure regulating valve 53, the other end of the manual pressure regulating valve 53 is connected to one end of the water outlet pipeline 54, the other end of the water outlet pipeline 54 is connected to one end of the intelligent flow meter 55, and the other end of the intelligent flow meter 55 is connected to an external pipe network. A pressure sensor 56 is also provided on the surface of the water outlet pipeline 54. The cross-sectional area of ​​the water outlet pipeline 54 is larger than the cross-sectional area of ​​the check valve 52. 6 includes a return pipeline 61 and an electric flow pressure regulating valve 62, one end of the return pipeline 61 is open and connected to the top of the water outlet support 4, the other end of the return pipeline 61 is closed and extends toward the lowest water outlet mechanism 5, the water diversion joint 51 in the water outlet mechanism 5 at the top is connected to the surface of the return pipeline 61, and a plurality of electric flow pressure regulating valves 62 are also arranged on the surface of the return pipeline 61, and the water outlet end of each electric flow pressure regulating valve 62 is connected to the surface of the water outlet pipeline 54, wherein the water diversion joint 51 is used to transport the water inside the junction of the guide shell 31 or the top of the water outlet support 4 and the return pipeline 61 to the inside of the check valve 52, the manual pressure regulating valve 53 is used to adjust the internal pressure of each water outlet pipeline 54, the pressure sensor 56 is used to monitor the internal pressure of the corresponding water pipeline 54, and the intelligent flow meter 55 is used to monitor the water flow passing through the corresponding water pipeline 54.

[0019] A zoned water supply control system, using the high-rise zoned dedicated pump as claimed in claim 6, comprises the following control steps: S1: A plurality of water outlet pipes 54 are respectively connected to the pipe networks in the high-rise area, the middle-rise area and the low-rise area of ​​the floor; S2: Adjust each manual pressure regulating valve 53 so that the maximum water flow rate allowed to pass through the check valves 52 in the high-level area, the middle-level area, and the low-level area is the same or different; In step S2, since the number of water users in the high-rise area, middle-rise area and low-rise area of ​​each community is different, the maximum water outflow rate allowed to pass through the check valve 52 in the high-rise area, middle-rise area and low-rise area can be adjusted according to the distribution of the number of households in different communities. However, if the number of households in each area is not much different, the manual pressure regulating valve 53 is used to make the maximum water outflow rate allowed to pass through the check valve 52 in each area the same.

[0020] S3: The driving motor inside the guide housing 31 drives each impeller to rotate so that the water inside the water inlet seat 11 can continuously flow into the return pipe 61 and the water outlet pipe 54 within the rated power; S4: When the pressure sensor 56 in any one area or two areas detects that the water pressure in the water outlet pipe 54 in the area is less than the set pressure, the reflux mechanism 6 is started; In S4: if the intelligent flow meters 55 in the high-rise area, the middle-rise area and the low-rise area all detect that the water output is less than the set flow of each partition, the reflux mechanism 6 is not started; S5: The reflux mechanism 6 distributes the pressurized water inside the water outlet support 4 to one or two areas where the pressure of the water outlet pipeline 54 is less than the set pressure; S51: For an area where the pressure of the water outlet pipe 54 is lower than the set pressure, the electric flow pressure regulating valve 62 of the area is started; S52: The electric flow pressure regulating valve 62 distributes the water in the return pipe 61 to the water outlet pipe 54 in the designated area and increases the flow rate of the water outlet pipe 54 in the area and gradually reaches the set pressure; S6: Connect the water outlet pipes 54 of the high-rise area, the middle-rise area and the low-rise area to the respective external dedicated pump groups; S7: After the reflux mechanism 6 is started and the pressure sensor 56 of the water outlet pipeline 54 of any area detects that the pressure still cannot reach the set value, the dedicated pump group of the area is started; In S7: when the reflux mechanism 6 is not started and the sum of the values ​​of the intelligent flow meters 55 in the high-level area, the middle-level area and the low-level area is greater than the rated flow of the entire pump, the dedicated pump group that satisfies the area where the pressure of the outlet pipe 54 is less than the set value is started; S8: After being turned on, the external dedicated pump group can transport the pressurized water to the inside of the water outlet pipeline 54 of the designated area.

[0021] It should be noted that the values ​​of the pressure sensors 56 and the intelligent flowmeter 55 in each area are uploaded to the designated main control board for data processing, and the main control board is used to control the opening or closing of each electric flow pressure regulating valve 62.

[0022] Working principle and use method of the present invention: 1. If the intelligent flow meters 55 in the high-rise area, the middle-rise area and the low-rise area all detect that the water output is less than the set flow of each partition, the reflux mechanism 6 will not be started; 2. When the flow rate of the water outlet pipeline 54 in the high-rise area cannot meet the needs of users, the intelligent flow meter 55 detects that the flow rate has reached the set value and the pressure sensor 56 detects that the pressure of the water outlet pipeline 54 is constantly decreasing. At this time, the flow rate intelligent flow meter 55 in the middle and low-rise areas detects that the flow rate has not reached the set value, and starts the electric flow pressure regulating valve 62 in the high-rise area. The electric flow pressure regulating valve 62 distributes the water in the return pipeline 61 to the water outlet pipeline 54 in the high-rise area and increases the flow rate of the water outlet pipeline 54 in the area and gradually reaches the set pressure. At this time, the self-flow regulation of the entire pump body is completed, and it is automatically adjusted according to the needs of residents without changing the power. If the pressure of the water outlet pipeline 54 in the high-rise area is still decreasing, that is, the flow rate is still insufficient, the special pump group for the high-rise area is used to ensure sufficient water flow; 3. When the flow rate of the water outlet pipeline 54 in the middle area cannot meet the needs of users, the intelligent flow meter 55 detects that the flow rate has reached the set value and the pressure sensor 56 detects that the pressure of the water outlet pipeline 54 is constantly decreasing. At this time, the flow rate intelligent flow meter 55 in the high-rise area and the low-rise area detects that the flow rate has not reached the set value, and the electric flow pressure regulating valve 62 in the middle area is started. The electric flow pressure regulating valve 62 distributes the water in the return pipeline 61 to the water outlet pipeline 54 in the middle area and increases the flow rate of the water outlet pipeline 54 in this area and the pipeline pressure gradually reaches the set pressure; at this time, the self-flow regulation of the entire pump body is completed, and it is automatically adjusted according to the needs of residents without changing the power. If the pressure of the water outlet pipeline 54 in the middle area is still decreasing, that is, the flow rate is still insufficient, the special pump group for the middle area is used to ensure sufficient water flow; 4. When the flow rate of the outlet pipe 54 in the low-rise area cannot meet the needs of users, the intelligent flow meter 55 detects that the flow rate has reached the set value and the pressure sensor 56 detects that the pressure of the outlet pipe 54 is decreasing. At this time, the flow rate intelligent flow meter 55 in the high-rise area and the middle-rise area detects that the flow rate has not reached the set value, and starts the electric flow pressure regulating valve 62 in the low-rise area. The electric flow pressure regulating valve 62 distributes the water in the return pipe 61 to the outlet pipe 54 in the low-rise area and increases the flow rate of the outlet pipe 54 in the area and the pipe pressure gradually reaches the set pressure. At this time, the self-flow regulation of the entire pump body is completed, and it is automatically adjusted according to the needs of residents without changing the power. If the pressure of the outlet pipe 54 in the low-rise area is still decreasing, that is, the flow rate is still insufficient, the dedicated pump group for the low-rise area is used to ensure sufficient water flow. 5. If there is no water in any area, the intelligent flowmeter 55 in the other two areas detects that the flow has reached the set value and the pressure sensor 56 detects that the pressure of the water outlet pipe 54 is decreasing, and the reflux mechanism 6 distributes the pressurized water in the water outlet support 4 to the two areas where the pressure of the water outlet pipe 54 is less than the set pressure. If the pressure of the water outlet pipe 54 in the two areas is still decreasing, that is, the flow is still insufficient, the dedicated pumps for the two areas are used to ensure sufficient water flow; 6. If each intelligent flow meter 55 in the high-rise area, the middle-rise area and the low-rise area detects that the flow has reached the set value and the pressure sensor 56 detects that the pressure of each water pipeline 54 is continuously decreasing, then it is greater than the rated flow of the entire pump, and the dedicated pump group in each area is started.

[0023] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A high-rise partition dedicated pump, comprising a water pump body (1), characterized in that: The water inlet end of the water pump body (1) is connected to a water inlet mechanism (2), the water outlet end of the water pump body (1) is provided with a pressurizing mechanism (3) for pressurizing water flow, the top of the pressurizing mechanism (3) is provided with a water outlet support member (4), the sides of the pressurizing mechanism (3) and the water outlet support member (4) are provided with a plurality of water outlet mechanisms (5), and the top of the water outlet support member (4) is also provided with a reflux mechanism (6) connected to each water outlet mechanism (5).

2. The high-rise partition dedicated pump according to claim 1 is characterized in that: The water pump body (1) comprises a water inlet seat (11), a water pump housing (13) and a water inlet node (12); the water inlet seat (11) and the water inlet node (12) are respectively connected to the bottom and the top of the water pump housing (13) via flanges; the water inlet mechanism (2) is connected to one side of the water inlet seat (11); the pressurizing mechanism (3) is connected to the top of the water inlet node (12); and a driving motor is provided inside the water pump housing (13).

3. The high-rise partition dedicated pump according to claim 2 is characterized in that: The pressurizing mechanism (3) comprises a plurality of flow guide shells (31) and a plurality of pump tie rods (32); the plurality of flow guide shells (31) are stacked between the top of the water inlet section (12) and the water outlet support member (4); flanges are provided on the side of the water inlet section (12) and the side of the water outlet support member (4); and each pump tie rod (32) is connected to the flange; an impeller is provided inside each flow guide shell (31); and a drive shaft of a drive motor is connected to each impeller.

4. The high-rise partition dedicated pump according to claim 3 is characterized in that: The water inlet mechanism (2) comprises a water inlet joint (21), a quick-connect valve (22) and a one-way valve (23); one side of the water inlet joint (21) is connected to one end of the quick-connect valve (22); and the one-way valve (23) is connected between the other end of the quick-connect valve (22) and the water inlet seat (11).

5. The high-rise partition dedicated pump according to claim 4 is characterized in that: Each of the water outlet mechanisms (5) comprises a water diversion joint (51), a check valve (52), a manual pressure regulating valve (53), a water outlet pipeline (54), an intelligent flow meter (55) and a pressure sensor (56); one end of the water diversion joint (51) is connected to one end of the check valve (52); the other end of the check valve (52) is connected to one end of the manual pressure regulating valve (53); the other end of the manual pressure regulating valve (53) is connected to one end of the water outlet pipeline (54); the other end of the water outlet pipeline (54) is connected to one end of the intelligent flow meter (55); the other end of the intelligent flow meter (55) is connected to an external pipe network; a pressure sensor (56) is also provided on the surface of the water outlet pipeline (54); and the cross-sectional area of ​​the water outlet pipeline (54) is larger than the cross-sectional area of ​​the check valve (52).

6. The high-rise partition dedicated pump according to claim 5 is characterized in that: The return mechanism (6) comprises a return pipeline (61) and an electric flow pressure regulating valve (62); one end of the return pipeline (61) is open and connected to the top of the water outlet support (4); the other end of the return pipeline (61) is closed and extends toward the water outlet mechanism (5) at the lowest position; a water diversion joint (51) in the water outlet mechanism (5) at the top is connected to the surface of the return pipeline (61); a plurality of electric flow pressure regulating valves (62) are also provided on the surface of the return pipeline (61); and the water outlet end of each electric flow pressure regulating valve (62) is connected to the surface of the water outlet pipeline (54).

7. A zoned water supply control system, using the high-rise zoned dedicated pump as claimed in claim 6, characterized in that: The control steps include: S1: a plurality of water outlet pipes (54) are respectively connected to the pipe networks in the upper area, the middle area and the lower area of ​​the floor; S2: adjusting each manual pressure regulating valve (53) so that the maximum water outflow rate allowed to pass through the check valves (52) in the high-level area, the middle-level area and the low-level area is the same or different; S3: The driving motor inside the guide housing (31) drives each impeller to rotate so that the water inside the water inlet seat (11) can continuously flow into the return pipe (61) and the water outlet pipe (54) within the rated power; S4: When the pressure sensor (56) of any one area or two areas detects that the water pressure of the water outlet pipeline (54) of the area is less than the set pressure, the reflux mechanism (6) is started; S5: The reflux mechanism (6) distributes the pressurized water inside the water outlet support (4) to one or two areas where the pressure of the water outlet pipeline (54) is less than the set pressure.

8. The zoned water supply control system according to claim 7, characterized in that: The operation of the reflux mechanism (6) in S5 includes the following control steps: S51: For an area where the pressure of the water outlet pipeline (54) is lower than the set pressure, the electric flow pressure regulating valve (62) of the area is activated; S52: The electric flow pressure regulating valve (62) distributes the water in the return pipeline (61) to the water outlet pipeline (54) in the designated area, so that the flow rate of the water outlet pipeline (54) in the area increases and the pipeline pressure gradually reaches the set pressure.

9. The zoned water supply control system according to claim 7, characterized in that: The control steps include: S6: Connect the water outlet pipes (54) of the high-rise area, the middle-rise area and the low-rise area to external dedicated pump groups respectively; S7: After the reflux mechanism (6) is started and the pressure sensor (56) of the water outlet pipeline (54) of any area detects that the pressure still cannot reach the set value, the dedicated pump group of the area is started; S8: After being turned on, the external dedicated pump group can transport the pressurized water to the inside of the water outlet pipeline (54) of the designated area.

10. The zoned water supply control system according to claim 7, characterized in that: The control steps include: In S4: if the intelligent flow meters (55) in the high-level area, the middle-level area and the low-level area all detect that the water output is less than the set flow rate of each partition, the return flow mechanism (6) is not started; In S7: when the reflux mechanism (6) is not started and the sum of the values ​​of the intelligent flow meters (55) in the high-level area, the middle-level area and the low-level area is greater than the rated flow of the entire pump, the dedicated pump group that satisfies the area where the pressure of the outlet pipe (54) is less than the set value is started.

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