Secondary water supply device

Abstract

The embodiment of the utility model relates to a kind of secondary water supply equipment, water supply device is provided on secondary water supply equipment;Pressure detection device is connected on water supply device;Backflush device is connected on water supply device, water supply device is inhaled water source compatible with different time periods under the action of pressure detection device, backflush device purifies the first ultrafiltration biochemical ware and second ultrafiltration biochemical ware of water supply device, solve the part rural water supply and field water supply point water supply part area without municipal pipe network water supply, water source change of water supply point in situ water supply area due to natural factors can cause water quality volatility of water use area, water supply is severely constrained, in addition, with the passage of time of water supply, the physical particle impurities contained in ultrafiltration biochemical ware and heavy metal adsorbed in bamboo carbon biochemical part also more and more, not only can produce certain negative influence to the water supply of water supply system, even can greatly discount the water quality purification effect of water supply medium technical problem.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of municipal water supply, and particularly to a secondary water supply device. Background Technology

[0002] Current secondary pressurized water supply systems utilize the municipal water network to supply water to pumps, which then pressurize the water supply area – a booster-type water supply model. However, some rural water supply points and outdoor water supply points lack municipal water supply, relying on local water sources, especially in northern regions and mining areas with high heavy metal content. Natural factors causing changes in the water source at the supply point lead to fluctuations in water quality, severely restricting water supply. In the south, pollution at the water intake point is generally seasonal, such as from flash floods, resulting in significant fluctuations. In the north, pollution is primarily due to heavy metals in the water itself, less affected by seasonality and exhibiting minimal fluctuations. Furthermore, over time, the amount of particulate impurities in the ultrafiltration biochemical unit and the heavy metals adsorbed on the bamboo charcoal biochemical component increases. Over time, this not only negatively impacts the water supply volume but can also significantly reduce the water purification effect of the supply medium. Utility Model Content

[0003] The purpose of this utility model is to provide a secondary water supply device that offers stable water supply, low cost, and adaptability to different needs.

[0004] To achieve the above objectives, the present invention provides a secondary water supply device, characterized in that it includes: A water supply device is installed on the secondary water supply equipment; A pressure detection device is connected to the water supply device. A backwash device is connected to the water supply device. The water supply device draws in water sources adapted to different time periods under the action of the pressure detection device. The backwash device purifies the first and second ultrafiltration biochemical reactors of the water supply device.

[0005] Furthermore, in the secondary water supply equipment of this utility model, the water supply device includes: A water inlet manifold is installed on the water supply device; A water inlet manifold for the equipment, with one side connected to the other side of the water inlet manifold; The first inlet butterfly valve is connected to one side of the equipment's inlet water manifold. The second inlet butterfly valve is connected to one side of the first inlet butterfly valve and the other side of the equipment inlet manifold. The first water inlet flexible connector is connected to the other side of the first water inlet butterfly valve; The second inlet flexible connector is connected to the other side of the second inlet butterfly valve; The first water supply booster pump is connected to one side of the first water supply booster pump on the other side of the first water inlet flexible joint; The second water supply booster pump is connected to one side of the second water supply booster pump on the other side of the second water inlet flexible joint; The first ultrafiltration bioreactor is connected to one side of the first ultrafiltration bioreactor on the other side of the first water supply booster pump; The second ultrafiltration bioreactor is connected to one side of the second ultrafiltration bioreactor on the other side of the second water supply booster pump; The first outlet flexible connector is connected to one side of the first outlet flexible connector on the other side of the first ultrafiltration biochemical device; The second outlet flexible connector is connected to one side of the second outlet flexible connector on the other side of the second ultrafiltration biochemical device; The first outlet check valve is connected to one side of the first outlet check valve on the other side of the first outlet flexible connector; The second outlet check valve is connected to one side of the second outlet check valve on the other side of the second outlet flexible connector; The first outlet butterfly valve is connected to one side of the first outlet butterfly valve on the other side of the first outlet check valve. The second outlet butterfly valve is connected to one side of the second outlet butterfly valve on the other side of the second outlet check valve; A water outlet manifold is connected to the other side of the first and second water outlet butterfly valves. The water supply area is located on the other side of the outlet manifold, connected to the side of the water supply area.

[0006] Furthermore, in the secondary water supply equipment of this utility model, the pressure detection device includes: A pressure switch is connected to the outlet manifold of the water supply device. A pressure sensor is connected to one side of the pressure switch and to the outlet water collection pipe; A pressure stabilizing tank is connected to one side of the pressure switch and the other side of the outlet water collection pipe. The pressure gauge for the outlet pipeline is connected to the side of the pressure stabilizing tank and the side of the outlet water collection pipe.

[0007] Furthermore, in the secondary water supply equipment of this utility model, the backflushing device includes: The first backwash water inlet pipe is connected to one side of the first ultrafiltration biochemical reactor of the water supply device. The second backwash water inlet pipe is connected to one side of the second ultrafiltration biochemical reactor of the water supply device. The first backflush inlet solenoid valve is connected to the first backflush water inlet pipe. The second backflush inlet solenoid valve is connected to the second backflush water inlet pipe. The first backwash outlet pipe is connected between the first water supply booster pump and the first ultrafiltration biochemical device of the water supply device. The second backwash outlet pipe is connected between the second water supply booster pump and the second ultrafiltration biochemical device of the water supply device. The first backflush water outlet solenoid valve is connected to the first backflush water outlet pipe. The second backflush solenoid valve is connected to the second backflush pipe.

[0008] Furthermore, in the secondary water supply equipment of this utility model, during backflushing, the first backflushing inlet solenoid valve is opened, and the backflushing medium enters the first backflushing inlet solenoid valve through the first backflushing water inlet pipe and then enters the first ultrafiltration biochemical device. The backflushing liquid flushes away the impurities accumulated in the cavity in front of the ultrafiltration membrane of the first ultrafiltration biochemical device, and then leads out through the first backflushing outlet solenoid valve that has been opened, thus purifying the first ultrafiltration biochemical device.

[0009] Furthermore, in the secondary water supply equipment of this utility model, an electrical control box is connected to one side of the water supply device.

[0010] Furthermore, in the secondary water supply equipment of this utility model, a PLC is installed in the electrical control box; the PLC is electrically connected to the first and second water supply booster pumps of the water supply device, and the PLC controls the operating frequency of the first and second water supply booster pumps; the PLC is electrically connected to the first backflushing outlet solenoid valve, the first backflushing inlet solenoid valve of the backflushing device, and the pressure sensor of the pressure detection device, and the PLC controls the start and stop of the first backflushing outlet solenoid valve and the first backflushing inlet solenoid valve, and the pressure sensor collects pressure signals and transmits electrical signals to the PLC; the PLC is also connected to the second backflushing outlet solenoid valve, the second backflushing inlet solenoid valve of the backflushing device, and the pressure gauge at the outlet pipe of the pressure detection device, and the PLC controls the start and stop of the second backflushing outlet solenoid valve and the second backflushing inlet solenoid valve, and the pressure gauge at the outlet pipe displays the water supply pressure and converts the pressure signal into an electrical signal and transmits it to the PLC.

[0011] Furthermore, in the secondary water supply equipment of this utility model, the other side of the water inlet manifold is connected to a water source or a water intake well.

[0012] Compared with the prior art, the implementation of this utility model involves setting up a water supply device on a secondary water supply equipment; connecting a pressure detection device to the water supply device; and connecting a backwash device to the water supply device. Under the action of the pressure detection device, the water supply device draws in water source adapted to different time periods. The backwash device purifies the first and second ultrafiltration biochemical filters of the water supply device. This solves the water supply problems in some rural areas and remote water supply points where there is no municipal water supply network, especially in northern regions and mining areas with high heavy metal content, where water supply is affected by natural factors. Changes in the water source at a point of origin can cause fluctuations in water quality in the water-using area, severely restricting water supply. In the south, pollution at the water intake point is generally due to mountain torrents, which is more seasonal and fluctuates significantly. In the north, pollution is caused by heavy metals in the water itself, which is less affected by the season and has little fluctuation. In addition, as the water supply time goes on, the physical particulate impurities in the ultrafiltration biochemical device and the heavy metals adsorbed on the bamboo charcoal biochemical part will increase. Over time, this will not only have a certain negative impact on the water supply volume of the water supply system, but may even significantly reduce the water purification effect of the water supply medium. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0015] The embodiments of this utility model relate to a secondary water supply device, such as... Figure 1 As shown, it includes: In this embodiment, a water supply device 1 is provided on the secondary water supply equipment; Connect pressure detection device 2 to water supply device 1; A backwash device 3 is connected to the water supply device 1. Under the action of the pressure detection device 2, the water supply device 1 draws in water source that is adapted to different time periods. The backwash device 3 purifies the first ultrafiltration biochemical device 002 and the second ultrafiltration biochemical device 012 of the water supply device 1.

[0016] In this embodiment, a backwashing device 3 is connected to the water supply device 1. Under the action of the pressure detection device 2, the water supply device 1 draws in water sources adapted to different time periods. The backwashing device 3 purifies the first ultrafiltration biochemical device 002 and the second ultrafiltration biochemical device 012 of the water supply device 1. This solves the problem that in some rural water supply and field water supply points, some areas do not have municipal water supply networks and rely on local water intake, especially in northern regions and mining areas with high heavy metal content. Due to natural factors, changes in the water source at the water supply point can cause fluctuations in the water quality of the water use area, severely restricting the water supply. In the south, pollution at the water intake point is generally due to mountain torrents, which is more seasonal and has higher fluctuations. In the north, pollution is due to the water itself containing heavy metals, which is less affected by the season and has basically no fluctuations. In addition, as the water supply time goes by, the physical particulate impurities contained in the ultrafiltration biochemical device and the heavy metals adsorbed on the bamboo charcoal biochemical part will increase. Over time, this will not only have a certain negative impact on the water supply volume of the water supply system, but may even greatly reduce the water purification effect of the water supply medium.

[0017] To achieve the above-mentioned technical effects, such as Figure 1 As shown, the water supply device 1 includes: A water inlet manifold 001 is installed on the water supply device 1, and the water inlet manifold 001 draws in water.

[0018] One side of the water inlet manifold 001 is connected to the other side of the equipment water inlet manifold 003. The equipment water inlet manifold 003 collects and distributes water to supply water to subsequent equipment.

[0019] Connect the first inlet butterfly valve 004 to one side of the equipment inlet water manifold 003; The first inlet butterfly valve 004 is connected to the second inlet butterfly valve 014 on one side of the equipment inlet water collection pipe 003; the first inlet butterfly valve 004 and the second inlet butterfly valve 014 are used to control the water flow into the first water supply booster pump 006 and the second water supply booster pump 016 respectively, and can be opened, closed or adjusted.

[0020] Connect the first inlet flexible connector 005 to the other side of the first inlet butterfly valve 004; A second inlet flexible joint 015 is connected to the other side of the second inlet butterfly valve 014; both the first inlet flexible joint 005 and the second inlet flexible joint 015 can buffer and dampen, reducing the impact of vibration generated during water flow on pipelines and equipment, while facilitating installation and disassembly.

[0021] On the other side of the first inlet flexible connector 005, connect to one side of the first water supply booster pump 006; On the other side of the second inlet flexible connector 015, the second water supply booster pump 016 is connected; the first water supply booster pump 006 and the second water supply booster pump 016 provide pressure so that water can flow into the first ultrafiltration biochemical device 002 and the second ultrafiltration biochemical device 012 respectively.

[0022] One side of the first ultrafiltration biochemical reactor 002 is connected to the other side of the first water supply booster pump 006; On the other side of the second water supply booster pump 016, the second ultrafiltration biochemical device 012 is connected. The first ultrafiltration biochemical device 002 and the second ultrafiltration biochemical device 012 are devices composed of bamboo charcoal biochemical parts combined with ultrafiltration membranes. When the medium flows through, the heavy metals and minerals that are harmful to the human body are absorbed and adsorbed by the bamboo charcoal biochemical parts at the inlet end of the filter. The micro-particles in the medium are blocked in the ultrafiltration membrane, thereby purifying the transported medium from both physical and chemical aspects. In unpolluted natural water sources, the water quality after ultrafiltration biochemical treatment can be upgraded from discharge-grade water quality to drinking-grade water quality.

[0023] On the other side of the first ultrafiltration biochemical device 002, connect the first outlet flexible connector 007. On the other side of the second ultrafiltration biochemical device 012, the second outlet flexible connector 017 is connected; both the first outlet flexible connector 007 and the second outlet flexible connector 017 can buffer and dampen, reducing the impact of vibration generated during water flow on pipes and equipment, while facilitating installation and disassembly.

[0024] Connect one side of the first outlet check valve 008 to the other side of the first outlet flexible connector 007; On the other side of the second outlet flexible connector 017, the second outlet check valve 018 is connected; the first outlet check valve 008 and the second outlet check valve 018 can prevent water backflow, so that water can only flow unidirectionally from the first ultrafiltration biochemical device 002 and the second ultrafiltration biochemical device 012 to the subsequent pipeline.

[0025] One side of the first outlet butterfly valve 009 is connected to the other side of the first outlet check valve 008; On the other side of the second outlet check valve 018, the second outlet butterfly valve 019 is connected; the first outlet butterfly valve 009 and the second outlet butterfly valve 019 respectively control the flow rate and on / off state of the water flowing out from the first ultrafiltration biochemical reactor 002 and the second ultrafiltration biochemical reactor 012.

[0026] A water outlet manifold 100 is connected to the other side of the first water outlet butterfly valve 009 and the second water outlet butterfly valve 019. The water outlet manifold 100 collects the water coming out of the first ultrafiltration biochemical device 002 and the second ultrafiltration biochemical device 012 and transports it to the water supply area 900.

[0027] On the other side of the outlet manifold 100, a water supply area 900 is connected, which is used to store and use purified water.

[0028] Water is drawn from the water supply source by the inlet manifold 001, enters the equipment inlet manifold 003, and then enters the water supply booster pump 006 for pressurization through the inlet butterfly valve 004 and the inlet flexible connector 005. The water then flows through the ultrafiltration biochemical device 002, the outlet flexible connector 007, the outlet check valve 008, and the outlet butterfly valve 009 to the outlet manifold 100, from which water is supplied to the water supply area 900.

[0029] To achieve the above-mentioned technical effects, such as Figure 1 As shown, the pressure detection device 2 includes: A pressure switch 101 is connected to the outlet manifold 100 of the water supply device 1. The pressure switch 101 automatically starts and stops the unit according to the pressure of the water supply network.

[0030] A pressure sensor 102 is connected to one side of the pressure switch 101 and the water outlet manifold 100. The pressure sensor 102 collects the pressure signal and converts it into an electrical signal, which is then transmitted to the PLC to control the operating frequency of the first water supply booster pump 006 and the second water supply booster pump 016 to meet the water supply requirements of different time periods in the water supply area.

[0031] On one side of the pressure switch 101 and on the other side of the outlet water collection pipe 100, the pressure stabilizing tank 103 is connected. When the system pressure fluctuates, the pressure stabilizing tank 103 can regulate the system pressure by storing and releasing water. It can not only absorb the pipeline pulses caused by the start and stop of the equipment and stabilize the water pressure, but also prevent the equipment from being damaged or the water quality from being affected by excessive pressure fluctuations. It can also replenish water to the pipeline when supplying water at a small flow rate.

[0032] On one side of the pressure stabilizing tank 103 and the other side of the water outlet manifold 100, the water outlet electric shock point pressure gauge 105 is connected. The water outlet electric shock point pressure gauge 105 monitors the pressure value at the water outlet manifold 100 in real time, displays the water supply pressure intuitively, and converts the pressure signal into an electrical signal and transmits it to the PLC401.

[0033] To achieve the above-mentioned technical effects, such as Figure 1 As shown, the recoil device 3 includes: A first backflush water inlet pipe 201 is connected to one side of the first ultrafiltration biochemical device 002 of the water supply device 1; A second backwash water inlet pipe 203 is connected to one side of the second ultrafiltration biochemical device 012 of the water supply device 1; the first backwash water inlet pipe 201 and the second backwash water inlet pipe 203 are used to introduce backwash water. When it is necessary to backwash the first ultrafiltration biochemical device 002 and the second ultrafiltration biochemical device 012 respectively, the backwash water is delivered to the device to remove the impurities and pollutants accumulated inside the device and restore the filtration performance of the device.

[0034] Connect the first backflush inlet solenoid valve 202 to the first backflush water inlet pipe 201; A second backwash inlet solenoid valve 204 is connected to the second backwash inlet pipe 203; the first backwash inlet solenoid valve 202 and the second backwash inlet solenoid valve 204 control the entry of backwash water respectively. By opening and closing the first backwash inlet solenoid valve 202 and the second backwash inlet solenoid valve 204, the start and end of the backwash operation and the flow rate of the backwash water are precisely controlled respectively, so as to realize automated backwash control and improve the efficiency and accuracy of backwash operation.

[0035] A first backwash outlet pipe 301 is connected between the first water supply booster pump 006 and the first ultrafiltration biochemical device 002 of the water supply device 1. A second backwash outlet pipe 303 is connected between the second water supply booster pump 016 and the second ultrafiltration biochemical device 012 in the water supply device 1; the first backwash outlet pipe 301 and the second backwash outlet pipe 303 are used to discharge the sewage after backwashing the first ultrafiltration biochemical device 002 and the second ultrafiltration biochemical device 012, respectively.

[0036] Connect the first backflush outlet solenoid valve 302 to the first backflush outlet pipe 301; A second backwash outlet solenoid valve 304 is connected to the second backwash outlet pipe 303; the first backwash outlet solenoid valve 302 and the second backwash outlet solenoid valve 304 control the discharge of backwash sewage respectively. By opening and closing the first backwash outlet solenoid valve 302 and the second backwash outlet solenoid valve 304, the flow rate and discharge time of the backwash water are controlled respectively, so that the backwash sewage can be discharged in a timely and effective manner.

[0037] The second ultrafiltration biochemical device 012, the second inlet butterfly valve 014, the second inlet flexible connector 015, the second water supply booster pump 016, the second outlet flexible connector 017, the second outlet check valve 018, the second outlet butterfly valve 019, the second backwash water inlet pipe 203, the second backwash inlet solenoid valve 204, the second backwash outlet pipe 303, and the second backwash outlet solenoid valve 304 are backup water supply equipment.

[0038] To achieve the above-mentioned technical effects, such as Figure 1 As shown, during backflushing, the first backflushing inlet solenoid valve 202 opens, and the backflushing medium enters the first backflushing inlet solenoid valve 202 through the first backflushing water inlet pipe 201 and then enters the first ultrafiltration bioreactor 002. The backflushing liquid flushes away the impurities accumulated in the cavity in front of the ultrafiltration membrane of the first ultrafiltration bioreactor 002, passes through the already opened first backflushing outlet solenoid valve 302, and is then led out through the first backflushing outlet pipe 301, purifying the first ultrafiltration bioreactor 002. The operating principle between the second backflushing inlet pipe 203, the second backflushing inlet solenoid valve 204, the second backflushing outlet pipe 303, the second backflushing outlet solenoid valve 304, and the second ultrafiltration bioreactor 012 is the same as above.

[0039] To achieve the above-mentioned technical effects, such as Figure 1 As shown, an electrical control box 400 is connected to one side of the water supply device 1.

[0040] To achieve the above-mentioned technical effects, such as Figure 1As shown, a PLC 401 is installed in the electrical control box 400; the PLC 401 is electrically connected to the first water supply booster pump 006 and the second water supply booster pump 016 of the water supply device 1, and the PLC 401 controls the operating frequency of the first water supply booster pump 006 and the second water supply booster pump 016; the PLC 401 is also electrically connected to the first backflushing outlet solenoid valve 302, the first backflushing inlet solenoid valve 202 of the backflushing device 3, and the pressure sensor 102 of the pressure detection device 2, and the PLC 401 controls ..., the first backflushing outlet solenoid valve 202, the first backflushing inlet solenoid valve 202, and the pressure sensor 102 of the pressure detection device 2, and the PLC 401 controls the operating frequency of the first backflushing outlet solenoid valve 302, the first backflushing inlet solenoid valve 202, and the pressure sensor 102 of the pressure detection device 2, and the PLC 401 controls the operating frequency of the first backflushing outlet solenoid valve 302, the first backflushing inlet solenoid valve 202, and the pressure sensor 102 of the pressure detection device 2, and the PLC 401 controls the operating frequency of the first backflushing outlet solenoid valve 302, the first backflushing inlet solenoid valve 202, and the pressure sensor 102 of the pressure detection device 2, and the pressure sensor 102 of the pressure detection The solenoid valve 202 starts and closes, and the pressure sensor 102 collects the pressure signal and transmits the electrical signal to the PLC 401. The PLC 401 is also connected to the second backflushing outlet solenoid valve 304 and the second backflushing inlet solenoid valve 204 of the backflushing device 3, and the pressure gauge 105 at the outlet pipe of the pressure detection device 2. The PLC 401 controls the start and stop of the second backflushing outlet solenoid valve 304 and the second backflushing inlet solenoid valve 204. The pressure gauge 105 at the outlet pipe displays the water supply pressure and converts the pressure signal into an electrical signal, which is then transmitted to the PLC 401. The start and stop of the backflushing device 3 are coordinated by the PLC and the first water supply booster pump 006 and the second water supply booster pump 016. The operating cycle of the backflushing device 3 and the duration of each backflushing operation should be fixed.

[0041] To achieve the above-mentioned technical effects, such as Figure 1 As shown, the other side of the inlet manifold 001 is connected to the water supply source or the water intake well.

[0042] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A secondary water supply device, characterized in that, include: A water supply device is installed on the secondary water supply equipment; A pressure detection device is connected to the water supply device. A backwashing device is connected to the water supply device. The water supply device draws in water sources adapted to different time periods under the action of the pressure detection device. The backwashing device purifies the first and second ultrafiltration biochemical reactors of the water supply device.

2. The secondary water supply equipment according to claim 1, characterized in that, The water supply device includes: A water inlet manifold is installed on the water supply device; A water inlet manifold for the equipment, with one side connected to the other side of the water inlet manifold; The first inlet butterfly valve is connected to one side of the equipment's inlet water manifold. The second inlet butterfly valve is connected to one side of the first inlet butterfly valve and the other side of the equipment inlet manifold. The first water inlet flexible joint is connected to the other side of the first water inlet butterfly valve; The second inlet flexible connector is connected to the other side of the second inlet butterfly valve; The first water supply booster pump is connected to one side of the first water supply booster pump on the other side of the first water inlet flexible joint; The second water supply booster pump is connected to one side of the second water supply booster pump on the other side of the second water inlet flexible joint; The first ultrafiltration bioreactor is connected to one side of the first ultrafiltration bioreactor on the other side of the first water supply booster pump; The second ultrafiltration bioreactor is connected to one side of the second ultrafiltration bioreactor on the other side of the second water supply booster pump; The first outlet flexible connector is connected to one side of the first outlet flexible connector on the other side of the first ultrafiltration biochemical device; The second outlet flexible connector is connected to one side of the second outlet flexible connector on the other side of the second ultrafiltration biochemical device; The first outlet check valve is connected to one side of the first outlet check valve on the other side of the first outlet flexible connector; The second outlet check valve is connected to one side of the second outlet check valve on the other side of the second outlet flexible connector; The first outlet butterfly valve is connected to one side of the first outlet butterfly valve on the other side of the first outlet check valve. The second outlet butterfly valve is connected to one side of the second outlet butterfly valve on the other side of the second outlet check valve; A water outlet manifold is connected to the other side of the first and second water outlet butterfly valves. The water supply area is located on the other side of the outlet manifold, connected to the side of the water supply area.

3. The secondary water supply equipment according to claim 1, characterized in that, The pressure detection device includes: A pressure switch is connected to the outlet manifold of the water supply device. A pressure sensor is connected to one side of the pressure switch and to the outlet water collection pipe; A pressure stabilizing tank is connected to one side of the pressure switch and the other side of the outlet water collection pipe. The pressure gauge for the outlet pipeline is connected to the side of the pressure stabilizing tank and the side of the outlet water collection pipe.

4. The secondary water supply equipment according to claim 1, characterized in that, The recoil device includes: The first backwash water inlet pipe is connected to one side of the first ultrafiltration biochemical reactor of the water supply device. The second backwash water inlet pipe is connected to one side of the second ultrafiltration biochemical reactor of the water supply device. The first backflush inlet solenoid valve is connected to the first backflush water inlet pipe. The second backflush inlet solenoid valve is connected to the second backflush water inlet pipe. The first backwash outlet pipe is connected between the first water supply booster pump and the first ultrafiltration biochemical device of the water supply device. The second backwash outlet pipe is connected between the second water supply booster pump and the second ultrafiltration biochemical device of the water supply device. The first backflush water outlet solenoid valve is connected to the first backflush water outlet pipe. The second backflush solenoid valve is connected to the second backflush pipe.

5. The secondary water supply equipment according to claim 4, characterized in that, During backflushing, the first backflushing inlet solenoid valve opens, and the backflushing medium enters the first backflushing inlet solenoid valve through the first backflushing water inlet pipe and then enters the first ultrafiltration biochemical device. The backflushing liquid flushes away the impurities accumulated in the cavity in front of the ultrafiltration membrane of the first ultrafiltration biochemical device, and then flows out through the first backflushing outlet solenoid valve that has been opened, and is then led out through the first backflushing outlet pipe to purify the first ultrafiltration biochemical device.

6. The secondary water supply equipment according to claim 1, characterized in that, An electrical control box is connected to one side of the water supply device.

7. The secondary water supply equipment according to claim 6, characterized in that, A PLC is installed in the electrical control box. The PLC is electrically connected to the first and second water supply booster pumps of the water supply device, and controls the operating frequency of the first and second water supply booster pumps. The PLC is also electrically connected to the first backflushing outlet solenoid valve, the first backflushing inlet solenoid valve of the backflushing device, and the pressure sensor of the pressure detection device. The PLC controls the start and stop of the first backflushing outlet solenoid valve and the first backflushing inlet solenoid valve, and the pressure sensor collects pressure signals and transmits electrical signals to the PLC. The PLC is also connected to the second backflushing outlet solenoid valve, the second backflushing inlet solenoid valve of the backflushing device, and the pressure gauge at the outlet pipe of the pressure detection device. The PLC controls the start and stop of the second backflushing outlet solenoid valve and the second backflushing inlet solenoid valve, and the pressure gauge at the outlet pipe displays the water supply pressure and converts the pressure signal into an electrical signal, which is then transmitted to the PLC.

8. The secondary water supply equipment according to claim 2, characterized in that, The other side of the inlet manifold is connected to a water supply source or a water intake well.

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