Integrated pipeline dual water supply system

Abstract

The invention discloses an integrated pipeline dual water supply system which comprises a central control cabinet, a self-adaptive secondary water supply device, a self-adaptive pressure stabilizing device and a water body purifying device, and the self-adaptive secondary water supply device is communicated with the water body purifying device through a flushing pipeline. The self-adaptive secondary water supply equipment supplies tap water to the domestic water end through the domestic water supply pipeline, the domestic water supply branch pipe and the self-adaptive pressure stabilizing equipment, and the water purification equipment supplies direct drinking water to the direct drinking water end through the direct drinking water supply pipeline, the direct drinking water supply branch pipe and the self-adaptive pressure stabilizing equipment. Compared with the prior art, through integration of centralized water replenishing and pressurizing, centralized water quality deep purification and partitioned self-adaptive pressure stabilization, stable and safe different-quality conveying of district direct drinking water and domestic water is achieved, the equipment and pipeline capital construction cost is reduced to the maximum extent, energy consumption is effectively reduced, and resources are saved.

Description

Technical Field

[0001] The present invention belongs to the field of quality-differentiated water supply, and in particular relates to an integrated pipeline quality-differentiated water supply system. Background Art

[0002] As residents' health awareness grows, domestic water demand is becoming more stratified. While ordinary tap water is sufficient for cleaning and washing, cooking, drinking, mixing, ironing, and floor heating often require drinking water with lower hardness and ion content. However, traditional municipal water supply systems use a single water quality standard and cannot meet this diverse water demand.

[0003] The current differentiated water supply technology can significantly improve the utilization rate of water resources and alleviate the contradiction between supply and demand through differentiated treatment and transportation. However, there are some technical defects in the existing differentiated water supply system: 1. The traditional centralized pipeline direct drinking water transportation mode mostly adopts the main water machine plus secondary water supply equipment for transportation. In this mode, the original tap water secondary pressurization equipment is not related to the water treatment equipment. The two systems operate in isolation. The flushing concentrated water generated by the water machine in the water treatment equipment is directly discharged when it is working, which wastes resources. The secondary water supply equipment in the water treatment equipment will process the depressurized direct drinking water and transport it to the user through the pipeline again, which wastes energy. 2. Since direct drinking water only accounts for a very small part of the total domestic water consumption, the secondary water supply in the pipeline direct drinking water system is not related to the water treatment equipment. The size of secondary water supply equipment is much smaller than that of secondary water supply equipment for domestic water. In order to save costs, most water supply units use a single set of boosting equipment to pressurize direct drinking water, and then reduce the direct drinking water pressure of users in medium and low-income areas through a large number of pressure reducing valves at the user terminal. Although this method can save pipeline and equipment costs, it increases the load on pipeline operation and increases the risk of pipe bursts in the transmission pipeline. 3. Most traditional water treatment equipment uses isolation and adsorption filter materials for interception filtration, which requires regular replacement of the filter materials. This not only greatly increases the consumption of filter materials, but also brings a lot of maintenance troubles to users. Therefore, in order to solve the core problems of the existing differentiated water supply system, such as low integration, lack of concentrated water reuse, and insufficient zoning pressure stabilization, an integrated solution is urgently needed. Summary of the Invention

[0004] The purpose of the present invention is to overcome the problems existing in the existing differentiated water supply system, and to provide an integrated pipeline differentiated water supply system that integrates centralized water replenishment and pressurization, centralized water quality deep purification and zoned adaptive pressure stabilization to achieve stable and safe differentiated transportation of direct drinking water and domestic water in the area, minimize the equipment and pipeline infrastructure costs, effectively reduce energy consumption, and save resources.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an integrated pipeline quality-differentiated water supply system, including a central control cabinet, adaptive secondary water supply equipment, adaptive pressure stabilizing equipment and water purification equipment: Adaptive secondary water supply equipment includes a raw water control cabinet, a raw water pipeline, and a bypass pipeline. The raw water pipeline is sequentially provided with a raw water pressure sensor I, a raw water inlet valve, a regulating water tank, a check valve I, a raw water booster pump group I, a raw water booster pump group II, a check valve II, and a raw water pressure sensor II. One end of the bypass pipeline is connected to the raw water pipeline between the raw water pressure sensor I and the raw water inlet valve, and the other end is connected to the raw water pipeline between the check valve II and the raw water pressure sensor II. The bypass pipeline is provided with a bypass valve. The regulating water tank is provided with a raw water air hole and a raw water level sensor. The regulating water tank is connected to a flushing water return pipe. The raw water pressure sensor I, the raw water inlet valve, the raw water booster pump group I, the raw water booster pump group II, the raw water pressure sensor II, the bypass valve, and the raw water level sensor are electrically connected to the raw water control cabinet. The adaptive pressure stabilizing device includes a pressure stabilizing control cabinet and a pressure stabilizing pipeline. The pressure stabilizing pipeline is sequentially provided with a pressure stabilizing pressure sensor I, a pressure stabilizing water inlet valve, an energy storage tank, and a pressure stabilizing water outlet valve. The energy storage tank is provided with a pressure stabilizing pressure sensor II, a pressure stabilizing liquid level sensor, and a pressure stabilizing air hole with a one-way air inlet valve. The pressure stabilizing pressure sensor I, the pressure stabilizing water inlet valve, the pressure stabilizing water outlet valve, the pressure stabilizing pressure sensor II, and the pressure stabilizing liquid level sensor are electrically connected to the pressure stabilizing control cabinet. The water purification equipment includes a purification control cabinet and a purification pipeline. The purification pipeline is equipped with a low-precision water inlet pressure sensor, a purification water inlet valve, a low-precision filter component, a medium-precision water inlet pressure sensor, a medium-precision filter component, a high-pressure water inlet valve, a high-precision water inlet pressure sensor, a purification booster pump group, a high-precision filter component, a water quality online monitor and a water tank inlet valve in sequence. The tail end of the purification pipeline is connected to a water storage tank. The purification pipeline between the water quality online monitor and the water tank inlet valve is connected to a flushing pipeline. An abnormal drain valve is provided at the connection point between the flushing pipeline and the purification pipeline. The flushing ports of the low-precision filter component, the medium-precision filter component and the high-precision filter component are respectively connected to the flushing pipeline through pipes, and the pipelines are respectively provided with a low-precision flushing valve, a medium-precision flushing valve and a forced flushing valve. A concentrated water bypass pipe is provided on the pipeline of the forced flushing valve, and the concentrated water bypass pipe is connected to the front and rear of the forced flushing valve, and a concentrated water regulating valve is provided on the concentrated water bypass pipe. A purification air hole with an air filter and a purification liquid level sensor are provided on the water storage tank, and the water storage tank is connected to a drinking water outlet pipe and a drinking water return pipe. A circulation pump group is provided on the drinking water outlet pipe, and a water purification disinfection and sterilization device is provided on the drinking water return pipe. A low-precision water inlet pressure sensor, a purification water inlet valve, a medium-precision water inlet pressure sensor, a high-pressure water inlet valve, a high-precision water inlet pressure sensor, a purification booster pump, an online water quality monitor, a water tank inlet valve, an abnormal drain valve, a low-precision flushing valve, a medium-precision flushing valve, a forced flushing valve, a purification liquid level sensor, a circulation pump group and a water purification disinfection and sterilization device are electrically connected to the purification control cabinet; The water purification equipment is placed at the highest point of the entire system head. The tail end of the raw water pipeline of the adaptive secondary water supply equipment is connected to a domestic water supply pipeline. The tail end of the domestic water supply pipeline is connected to the head end of the purification pipeline of the water purification equipment. There are multiple domestic water supply branches on the domestic water supply pipeline. The domestic water supply branch is connected to the domestic water end. The head and tail ends of the pressure stabilizing pipeline of the adaptive pressure stabilizing equipment are connected in series to the domestic water supply branch. The tail end of the flushing pipeline of the water purification equipment is connected to the flushing water return water of the adaptive secondary water supply equipment. The head end of the pipe and the tail end of the direct drinking water outlet pipe of the water purification equipment are connected to a direct drinking water supply pipe, the tail end of the direct drinking water supply pipe is connected to the direct drinking water return pipe of the water purification equipment, and multiple direct drinking water supply branches are connected on the direct drinking water supply pipe, and the direct drinking water supply branch pipe is connected to the direct drinking water consumption end. The head and tail ends of the pressure stabilizing pipe of the adaptive pressure stabilizing equipment are connected in series to the direct drinking water supply branch pipe, and the raw water control cabinet of the adaptive secondary water supply equipment, the pressure stabilizing control cabinet of the adaptive pressure stabilizing equipment and the purification control cabinet of the water purification equipment are communicated with the central control cabinet.

[0006] Optionally, the regulating water tank of the adaptive secondary water supply equipment is provided with a raw water discharge pipe and a raw water disinfection and sterilization device, the raw water discharge pipe is provided with a raw water discharge valve, the raw water air hole on the regulating water tank is provided with an air filter, and the raw water disinfection and sterilization device and the raw water discharge valve are electrically connected to the raw water control cabinet.

[0007] Optionally, a pressure stabilizing tank is connected to the raw water pipeline at the rear end of the raw water pressure sensor II of the adaptive secondary water supply equipment.

[0008] Optionally, a backwash tank is connected to the purification pipeline between the medium-precision filter component and the high-pressure water inlet valve of the water purification equipment.

[0009] Optionally, an air filter is provided at the air inlet of the one-way air inlet valve of the energy storage tank adapted to the pressure stabilizing device.

[0010] Optionally, the domestic water supply pipeline is connected with a plurality of direct-use branches, and the direct-use branches are connected to the direct-use water end.

[0011] The operating process of the present invention is as follows: the head end of the raw water pipeline of the adaptive secondary water supply equipment is connected to the municipal pipe network, the water purification equipment is placed at the highest head point of the entire system (the highest vertical elevation), the concentrate water regulating valve of the water purification equipment is manually adjusted to set the concentrate water to pure water ratio to meet the water production demand, the energy storage tank of the adaptive voltage stabilization equipment is placed at a high position in the water use zone to which it belongs, and the control cabinet data of all equipment is input into the central control cabinet, which centrally coordinates the start and stop of equipment, monitors the operating conditions, issues alarm signals in the event of a fault, and takes corresponding control measures; First, the tap water from the municipal pipe network enters the raw water pipeline of the adaptive secondary water supply equipment. The control cabinet controls the opening and closing of the raw water inlet valve and the bypass valve, and the start-up of the raw water booster pump group I and the raw water booster pump group II according to the real-time data provided by the raw water pressure sensor I, the raw water pressure sensor II and the raw water level sensor, and compares the preset parameters. The system gives priority to flushing return water as a measure to replenish the water in the regulating tank, and adjusts the water tank level below the set low-level water security threshold (which cannot meet normal water use). When the tap water pressure is full (the water pressure is greater than the preset value), the raw water inlet valve and the bypass valve are opened, the raw water booster pump group II is started, and a part of the tap water is injected into the regulating tank for standby use. The regulating tank is replenished to the preset receiving level (space is reserved for storing flushing return water), and the raw water inlet valve is closed. Closed, the other part of the tap water is pressurized by the raw water booster pump group II and then enters the domestic water supply pipeline; when the tap water is under-pressure during the peak water consumption (the water pressure is within the preset value range), the raw water inlet valve is closed, the bypass valve is opened, the raw water booster pump group II is started, and all the tap water is pressurized by the raw water booster pump group II and then enters the domestic water supply pipeline; when the tap water cannot meet normal use during the peak water consumption (the water pressure is less than the preset value), the raw water inlet valve is opened, the bypass valve is closed, the raw water booster pump group I and the raw water booster pump group II are started, and the tap water in the regulating water tank is pressurized by the raw water booster pump group I and the raw water booster pump group II and then enters the domestic water supply pipeline; through the above-mentioned water replenishment and pressure replenishment method, the adaptive secondary water supply equipment provides tap water that meets the conditions for the domestic water supply pipeline; Next, the tap water entering the domestic water supply pipeline is distributed to each domestic water supply branch pipe, and is provided to the domestic water end after passing through the adaptive pressure stabilizing equipment; the control cabinet controls the opening and closing of the pressure stabilizing water inlet valve and the pressure stabilizing water outlet valve and the adjustment of the front-end pressure according to the real-time data provided by the pressure stabilizing pressure sensor I, the pressure stabilizing pressure sensor II and the pressure stabilizing liquid level sensor, and compares the preset parameters; when the pressure in the tank is lower than the preset lower pressure limit, the pressure stabilizing water inlet valve and the pressure stabilizing water outlet valve are opened, and the pressurized tap water enters the tank. The pressure in the tank gradually reaches the preset upper pressure limit, the pressure stabilizing water inlet valve is closed, and the energy storage tank is used for domestic water. Provide tap water with appropriate pressure at the end; as the air in the tank is repeatedly compressed, part of the air will mix into the water and be discharged along with the water, resulting in a decrease in the amount of air in the tank and a decrease in the regulating ability of the energy storage tank, which is manifested in an abnormal increase in the liquid level. When the pressure-stabilizing liquid level sensor detects that the liquid level in the tank has reached the preset upper limit, the pressure-stabilizing water inlet valve is closed and the pressure-stabilizing water outlet valve is opened. The water in the tank is continuously discharged, and the liquid level in the tank drops. When the air pressure outside the tank is greater than the air pressure inside the tank, air enters the tank through the one-way air inlet valve. When the liquid level in the tank reaches the preset lower limit, the pressure-stabilizing water inlet valve is opened, and the tank is normally replenished with water and pressure. Then, the tap water at the end of the domestic water supply pipeline enters the purification pipeline of the water purification equipment. The control cabinet controls the opening and closing of the purification water inlet valve, high-pressure water inlet valve, water tank inlet valve, abnormal drainage valve and various precision flushing valves, as well as the start and stop of the purification booster pump according to the real-time data provided by the various precision water inlet pressure sensors, water quality online monitor and purification liquid level sensor. During normal water production, the purification water inlet valve, high-pressure water inlet valve and water tank inlet valve are opened, all flushing valves and abnormal drainage valves are closed, the purification booster pump is started, and the tap water is filtered through the filter components of various precisions to form direct drinking water that flows through the water quality online monitor. The instrument enters the water tank. When the liquid level sensor of the water tank detects that the liquid level in the water tank reaches the preset high level or low level, it controls the opening and closing of the purified water inlet valve, the high-pressure water inlet valve and the water tank inlet valve, as well as the start and stop of the booster pump, and then adjusts the water production process to maintain a certain amount of direct drinking water in the water tank. Since the entire water purification equipment is at the highest point of the entire system, it only needs to rely on gravity to achieve water supply pressurization. The direct drinking water in the water tank flows into the direct drinking water outlet pipe and passes through the circulation pump group (normal start, only needs to provide pressure to achieve pipeline circulation and pressure replenishment at the high water end) and then flows into the direct drinking water supply pipeline after pressurization. The direct drinking water flowing back from the water pipeline is disinfected and sterilized by the purification, disinfection and sterilization device (normal start) and then flows back into the water tank; when the low-precision water inlet pressure sensor detects that the pressure is greater than the pressure detected by the medium-precision water inlet pressure monitoring sensor or the medium-precision water inlet pressure sensor detects that the pressure is greater than the pressure detected by the high-precision water inlet pressure monitoring sensor, and the difference reaches the set value, the high-pressure water inlet valve is closed, the purification booster pump is shut down, the low-precision flushing valve or the medium-precision flushing valve is opened, and the water flow from the front end flushes the low-precision filter component or the medium-precision filter membrane component, and the forced flushing valve is in a closed state during normal water production. In the state, when water is not produced (the water tank inlet valve is closed) or the equipment has just been started (the water inlet valve is switched from closed to open), the forced flushing valve is opened, and the water from the front end flows at a large flow rate to flush the high-precision filter membrane components. After flushing for a period of time, the forced flushing valve is closed. The above flushing operation can also be actively flushed by setting the flushing time and flushing start time through the control cabinet. The flushing water is collected into the flushing pipeline through various flushing valves; when the water quality online monitor detects abnormal water quality parameters, the abnormal drain valve is opened, the water tank inlet valve is closed, and unqualified water flows into the flushing pipeline. The control cabinet issues an alarm to remind the operation and maintenance personnel of the water production abnormality; Finally, the drinking water is distributed to each drinking water supply branch through the drinking water supply pipeline, and is provided to the drinking water consumption end after passing through the adaptive pressure stabilizing equipment.

[0012] The principle of this invention is that concentrated flushing water from the purification equipment is returned to the regulating water tank through the flushing pipeline for closed-loop recycling and reuse as domestic water, achieving zero flushing water discharge and saving water. The water purification equipment is placed at the highest point of the system, using gravity to supply drinking water to the high-pressure zone, while only pressurizing the low-pressure zone, saving energy. Each zone uses an adaptive pressure stabilization device to dynamically adjust the pressure, replacing mechanical pressure reducing valves and reducing the risk of pipe bursts. During peak water consumption and tap water outages, the water stored in the regulating water tank of the adaptive secondary water supply equipment can meet peak water replenishment and emergency water supply, providing more stable water supply. The "multi-stage filtration + online water quality monitoring instrument + abnormal drain valve" and the cyclic disinfection and sterilization of the purification, disinfection and sterilization device ensure the quality of direct drinking water. At the same time, automatic flushing extends the service life of the filter material, ensuring long-term operation of the water purification. Through integrated integration (secondary water supply + purification + pressure stabilization), the secondary water supply, purification and pressure stabilization equipment are linked by a central control cabinet to achieve efficient and coordinated management of domestic and direct drinking water.

[0013] Compared with the existing technology, the present invention has at least the following beneficial effects: the present invention realizes stable and safe quality-based transportation of direct drinking water and domestic water in the area through the integrated integration of centralized water replenishment and pressurization, centralized water quality deep purification and zoned adaptive pressure stabilization, minimizes the equipment and pipeline infrastructure costs, effectively reduces energy consumption and saves resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic structural diagram of the adaptive secondary water supply equipment of the present invention; Figure 3 It is a structural schematic diagram of the adaptive voltage stabilizing device of the present invention; Figure 4 This is a schematic structural diagram of the water purification equipment of the present invention; The components in the accompanying drawings are marked as follows: central control cabinet 1, adaptive secondary water supply equipment 2, raw water control cabinet 21, raw water pipeline 22, bypass pipeline 23, raw water pressure sensor I 24, raw water inlet valve 25, regulating water tank 26, check valve I 27, raw water booster pump group I 28, raw water booster pump group II 29, check valve II 210, raw water pressure sensor II 211, bypass valve 212, raw water air hole 213, raw water level sensor 214 , flushing water return pipe 215, raw water discharge pipe 216, raw water disinfection and sterilization device 217, raw water discharge valve 218, pressure stabilizing tank 219, adaptive pressure stabilizing equipment 3, pressure stabilizing control cabinet 31, pressure stabilizing pipeline 32, pressure stabilizing pressure sensor I 33, pressure stabilizing water inlet valve 34, energy storage tank 35, pressure stabilizing water outlet valve 36, pressure stabilizing pressure sensor II 37, pressure stabilizing liquid level sensor 38, pressure stabilizing air hole 39, water purification equipment 4, purification control cabinet 41, purification Pipeline 42, low-precision water inlet pressure sensor 43, purification water inlet valve 44, low-precision filter assembly 45, medium-precision water inlet pressure sensor 46, medium-precision filter assembly 47, high-pressure water inlet valve 48, high-precision water inlet pressure sensor 49, purification booster pump group 410, high-precision filter assembly 411, water quality online monitor 412, water tank inlet valve 413, water storage tank 414, flushing pipeline 415, abnormal drainage valve 416, low-precision flushing valve 417, medium-precision flushing valve 418, forced flushing valve 419, concentrated water bypass pipe 420, concentrated water regulating valve 421, purification air hole 422, purification liquid level sensor 423, direct drinking water outlet pipe 424, direct drinking water return pipe 425, circulation pump group 426, water purification disinfection and sterilization device 427, backwash tank 428, domestic water supply pipeline 5, domestic water supply branch pipe 6, direct drinking water supply pipeline 7, direct drinking water supply branch pipe 8, direct use branch pipe 9. DETAILED DESCRIPTION

[0015] Example 1, below combined Figure 1-4 The present invention is further described as follows: 1. An integrated pipeline quality-differentiated water supply system includes a central control cabinet 1, an adaptive secondary water supply device 2, an adaptive pressure stabilizing device 3, and a water purification device 4: The adaptive secondary water supply equipment includes a raw water control cabinet 21, a raw water pipeline 22 and a bypass pipeline 23. The raw water pipeline is provided with a raw water pressure sensor I 24, a raw water inlet valve 25, a regulating water tank 26, a check valve I 27, a raw water booster pump group I 28, a raw water booster pump group II 29, a check valve II 210 and a raw water pressure sensor II 211 in sequence. One end of the bypass pipeline is connected to the raw water pipeline between the raw water pressure sensor I and the raw water inlet valve, and the other end is connected to the raw water pipeline between the check valve II and the raw water pressure sensor II. A bypass valve 212 is provided on the bypass pipeline. A raw water air hole 213 and a raw water level sensor 214 are provided on the top of the regulating water tank. The probe of the raw water level sensor is located in the tank. The regulating water tank is connected to a flushing water return pipe 2 15. The water inlet and return port of the regulating water tank are located at the top, while the water outlet is located at the bottom. The raw water pressure sensor I, raw water inlet valve, raw water booster pump group I, raw water booster pump group II, raw water pressure sensor II, bypass valve, and raw water level sensor are electrically connected to the raw water control cabinet. The raw water control cabinet controls the opening and closing of the raw water inlet valve and bypass valve, as well as the start and stop of raw water booster pump group I and raw water booster pump group II. Raw water pressure sensors I and II are pressure transmitters, electric contact pressure gauges, etc. The raw water inlet valve and bypass valve are pneumatic, electric, electromagnetic, or other mechanical valves. The raw water level sensor is an ultrasonic level gauge, infrared level gauge, float-type level gauge, etc. Raw water booster pump group I and raw water booster pump group II are composed of one or more water pumps; The adaptive pressure stabilizing device includes a pressure stabilizing control cabinet 31 and a pressure stabilizing pipeline 32. The pressure stabilizing pipeline is provided with a pressure stabilizing pressure sensor I 33, a pressure stabilizing water inlet valve 34, an energy storage tank 35 and a pressure stabilizing water outlet valve 36 in sequence. The top of the energy storage tank is provided with a pressure stabilizing pressure sensor II 37, a pressure stabilizing liquid level sensor 38 and a pressure stabilizing air hole 39 with a one-way air inlet valve. The probes of the pressure stabilizing pressure sensor II and the pressure stabilizing liquid level sensor are located in the tank. The water inlet of the energy storage tank is located at the top and the water outlet is located at the bottom. The pressure stabilizing pressure sensor II and the pressure stabilizing liquid level sensor are located in the tank. The force sensor I, the pressure-stabilizing water inlet valve, the pressure-stabilizing water outlet valve, the pressure-stabilizing pressure sensor II and the pressure-stabilizing liquid level sensor are electrically connected to the pressure-stabilizing control cabinet. The pressure-stabilizing control cabinet controls the opening and closing of the pressure-stabilizing water inlet valve and the pressure-stabilizing water outlet valve. The pressure-stabilizing pressure sensor I and the pressure-stabilizing pressure sensor II are pressure transmitters, electric contact pressure gauges, etc. The pressure-stabilizing water inlet valve and the pressure-stabilizing water outlet valve are pneumatic, electric, electromagnetic or other mechanical valves. The pressure-stabilizing liquid level sensor is an ultrasonic level gauge, an infrared level gauge, a float-type level gauge, etc. The water purification equipment includes a purification control cabinet 41 and a purification pipeline 42. The purification pipeline is provided with a low-precision water inlet pressure sensor 43, a purification water inlet valve 44, a low-precision filter component 45, a medium-precision water inlet pressure sensor 46, a medium-precision filter component 47, a high-pressure water inlet valve 48, a high-precision water inlet pressure sensor 49, a purification booster pump group 410, a high-precision filter component 411, an online water quality monitor 412 and a water tank inlet valve 413. The tail end of the purification pipeline is connected to a water storage tank 414. The purification pipeline between the online water quality monitor and the water tank inlet valve is connected to a flushing pipeline 415. An abnormal drain valve 416 is provided on the flushing pipeline where it is connected to the purification pipeline. The low-precision filter component, the medium-precision filter component and the high-precision filter component are connected. The flushing ports of the filter components are connected to the flushing pipelines through pipes, and a low-precision flushing valve 417, a medium-precision flushing valve 418 and a forced flushing valve 419 are respectively provided on the pipes. A concentrated water bypass pipe 420 is provided on the pipe of the forced flushing valve, and the concentrated water bypass pipe is connected to the front and back of the forced flushing valve. A concentrated water regulating valve 421 is provided on the concentrated water bypass pipe. A purification air hole 422 with an air filter and a purification liquid level sensor 423 are provided on the top of the water storage tank. The purification liquid level sensor probe is located in the tank. The water storage tank is connected to a drinking water outlet pipe 424 and a drinking water return pipe 425. A circulating pump group 426 is provided on the drinking water outlet pipe, and a water purification and disinfection device 427 is provided on the drinking water return pipe. The water inlet and return port of the water storage tank are located at the upper part, and The water outlet is located at the bottom, and the low-precision water inlet pressure sensor, purification water inlet valve, medium-precision water inlet pressure sensor, high-pressure water inlet valve, high-precision water inlet pressure sensor, purification booster pump, water quality online monitor, water tank water inlet valve, abnormal drain valve, low-precision flushing valve, medium-precision flushing valve, forced flushing valve, purification liquid level sensor, circulation pump group and water purification disinfection and sterilization device are electrically connected to the purification control cabinet. The purification control cabinet controls the opening and closing of the purification water inlet valve, high-pressure water inlet valve, water tank water inlet valve, abnormal drain valve, low-precision flushing valve, medium-precision flushing valve and forced flushing valve, as well as the start and stop of the purification booster pump, circulation pump group and purification disinfection and sterilization device. The low-precision water inlet pressure sensor, medium-precision water inlet pressure sensor and high-precision water inlet pressure sensor The pressure transmitters are pressure transmitters, electric contact pressure gauges, etc. The purification liquid level sensors are ultrasonic level gauges, infrared level gauges, float-type level gauges, etc. The air filter is a filter material (filter cotton, etc.) used to isolate dust, bacteria, insects and other impurities in the outside air. The purification water inlet valve, high-pressure water inlet valve, water tank water inlet valve, abnormal drainage valve, low-precision flushing valve, medium-precision flushing valve and forced flushing valve are pneumatic, electric, electromagnetic and other mechanical valves. The concentrated water regulating valve is a manual flow regulating valve. The low-precision filter component is a multi-media filter filled with various filter materials or a precision filter using cloth bags, PP cotton, and stainless steel filter mesh. The medium-precision filter component is an ultrafiltration membrane or microfiltration membrane filter component. The high-precision filter component is a reverse osmosis membrane or nanofiltration membrane filter component.The online water quality monitor is a real-time water quality detection instrument (including multiple water quality sensors) that monitors the conductivity, color, turbidity, pH, dissolved oxygen and other parameters of the flowing water in real time. The purification and disinfection sterilization devices include ultraviolet disinfection devices, chlorine dioxide generators, ozone sterilizers, etc. The water purification equipment is placed at the highest point of the entire system head. The tail end of the raw water pipeline of the adaptive secondary water supply equipment is connected to a domestic water supply pipeline 5, and the tail end of the domestic water supply pipeline is connected to the head end of the purification pipeline of the water purification equipment. There are multiple domestic water supply branches 6 connected to the domestic water supply pipeline. The domestic water supply branch pipes are connected to the domestic water end. The head and tail ends of the pressure stabilizing pipeline of the adaptive pressure stabilizing equipment are connected in series to the domestic water supply branch pipe. The tail end of the flushing pipeline of the water purification equipment is connected to the flushing water return water of the adaptive secondary water supply equipment. The head end of the pipe and the tail end of the direct drinking water outlet pipe of the water purification equipment are connected to a direct drinking water supply pipe 7, the tail end of the direct drinking water supply pipe is connected to the direct drinking water return pipe of the water purification equipment, and a plurality of direct drinking water supply branches 8 are connected to the direct drinking water supply pipe, and the direct drinking water supply branch pipes are connected to the direct drinking water consumption end. The head and tail ends of the pressure stabilizing pipe of the adaptive pressure stabilizing equipment are connected in series to the direct drinking water supply branch pipe, and the raw water control cabinet of the adaptive secondary water supply equipment, the pressure stabilizing control cabinet of the adaptive pressure stabilizing equipment and the purification control cabinet of the water purification equipment are communicated with the central control cabinet.

[0016] Based on the cleanliness of the water in the regulating water tank of the adaptive secondary water supply equipment and the cleaning of the caisson residue, a raw water discharge pipe 216 and a raw water disinfection and sterilization device 217 are provided in the regulating water tank of the adaptive secondary water supply equipment. A raw water discharge valve 218 is provided on the raw water discharge pipe, and an air filter is provided at the raw water air hole on the regulating water tank. The raw water disinfection and sterilization device and the raw water discharge valve are electrically connected to the raw water control cabinet. The air filter is a filter material (filter cotton, etc.) used to isolate impurities such as dust, bacteria, and insects in the outside air. The raw water discharge valve is a pneumatic, electric, electromagnetic or other mechanical valve. The raw water disinfection and sterilization device is an ultraviolet sterilizer, a chlorine dioxide generator, an ozone sterilizer, etc.

[0017] In order to maintain pressure at low flow rates and prevent the pump group from continuing to work without stopping, a pressure stabilizing tank 219 is connected to the raw water pipeline at the rear end of the raw water pressure sensor II of the adaptive secondary water supply equipment.

[0018] In order to improve the flushing effect of the medium-precision filter component, a backwash tank 428 is connected to the purification pipeline between the medium-precision filter component and the high-pressure water inlet valve of the water purification equipment. When flushing the medium-precision filter component, the water stored in the backwash tank under pressure and the water from the low-precision filter component are used to flush the medium-precision filter component together, thereby achieving a better flushing effect.

[0019] In order to reduce external pollution to direct drinking water, an air filter is installed at the air inlet of the one-way air inlet valve of the energy storage tank of the adaptive pressure stabilizing device located in the direct drinking water supply branch pipe. The air filter is a filter material (filter cotton, etc.) used to isolate impurities such as dust, bacteria, insects, etc. in the outside air.

[0020] In order to meet the needs of some direct water-using ends that do not require pressure stabilization but require high pressure, a plurality of direct branch pipes 9 are connected on the domestic water supply pipeline, and the direct branch pipes are connected to the direct water-using ends.

[0021] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. An integrated pipeline quality-differentiated water supply system, comprising a central control cabinet (1), an adaptive secondary water supply device (2), an adaptive pressure stabilizing device (3) and a water purification device (4), characterized in that: The adaptive secondary water supply equipment includes a raw water control cabinet (21), a raw water pipeline (22) and a bypass pipeline (23). The raw water pipeline is provided with a raw water pressure sensor I (24), a raw water inlet valve (25), a regulating water tank (26), a check valve I (27), a raw water booster pump group I (28), a raw water booster pump group II (29), a check valve II (210) and a raw water pressure sensor II (211) in sequence. One end of the bypass pipeline is connected to the raw water pressure sensor I and the raw water inlet valve. The other end is connected to the raw water pipeline between the check valve II and the raw water pressure sensor II, a bypass valve (212) is provided on the bypass pipeline, a raw water air hole (213) and a raw water level sensor (214) are provided on the regulating water tank, the regulating water tank is connected to a flushing water return pipe (215), the raw water pressure sensor I, the raw water inlet valve, the raw water booster pump group I, the raw water booster pump group II, the raw water pressure sensor II, the bypass valve and the raw water level sensor are electrically connected to the raw water control cabinet; An adaptive pressure stabilizing device comprises a pressure stabilizing control cabinet (31) and a pressure stabilizing pipeline (32), wherein the pressure stabilizing pipeline is provided with a pressure stabilizing pressure sensor I (33), a pressure stabilizing water inlet valve (34), an energy storage tank (35) and a pressure stabilizing water outlet valve (36) in sequence, and the energy storage tank is provided with a pressure stabilizing pressure sensor II (37), a pressure stabilizing liquid level sensor (38) and a pressure stabilizing air hole (39) with a one-way air inlet valve, and the pressure stabilizing pressure sensor I, the pressure stabilizing water inlet valve, the pressure stabilizing water outlet valve, the pressure stabilizing pressure sensor II and the pressure stabilizing liquid level sensor are electrically connected to the pressure stabilizing control cabinet; A water purification device comprises a purification control cabinet (41) and a purification pipeline (42), wherein the purification pipeline is provided with a low-precision water inlet pressure sensor (43), a purification water inlet valve (44), a low-precision filter component (45), a medium-precision water inlet pressure sensor (46), a medium-precision filter component (47), a high-pressure water inlet valve (48), a high-precision water inlet pressure sensor (49), a purification booster pump group (410), a high-precision filter component (411), an online water quality monitor (412) and a water tank inlet valve (413), the tail end of the purification pipeline is connected to a water storage tank (414), the purification pipeline between the online water quality monitor and the water tank inlet valve is connected to a flushing pipeline (415), an abnormal drain valve (416) is provided at the connection point between the flushing pipeline and the purification pipeline, and the flushing ports of the low-precision filter component, the medium-precision filter component and the high-precision filter component are respectively connected to the flushing pipeline through pipelines, and the pipelines are respectively provided with low-precision flushing valves (417 ), a medium-precision flushing valve (418) and a forced flushing valve (419), a concentrated water bypass pipe (420) is provided on the pipeline of the forced flushing valve, the concentrated water bypass pipe is connected to the front and rear of the forced flushing valve, a concentrated water regulating valve (421) is provided on the concentrated water bypass pipe, a purification air hole 422 with an air filter and a purification liquid level sensor (423) are provided on the water storage tank, the water storage tank is connected to a drinking water outlet pipe (424) and a drinking water return pipe (425), a circulation pump group (426) is provided on the drinking water outlet pipe, and a water purification disinfection and sterilization device (427) is provided on the drinking water return pipe, a low-precision water inlet pressure sensor, a purification water inlet valve, a medium-precision water inlet pressure sensor, a high-pressure water inlet valve, a high-precision water inlet pressure sensor, a purification booster pump, a water quality online monitor, a water tank water inlet valve, an abnormal drainage valve, a low-precision flushing valve, a medium-precision flushing valve, a forced flushing valve, a purification liquid level sensor, a circulation pump group and a water purification disinfection and sterilization device are electrically connected to the purification control cabinet; The water purification equipment is placed at the highest point of the entire system head. The tail end of the raw water pipeline of the adaptive secondary water supply equipment is connected to a domestic water supply pipeline (5). The tail end of the domestic water supply pipeline is connected to the head end of the purification pipeline of the water purification equipment. The domestic water supply pipeline is connected to multiple domestic water supply branches (6). The domestic water supply branches are connected to the domestic water end. The head and tail ends of the pressure stabilizing pipeline of the adaptive pressure stabilizing equipment are connected in series to the domestic water supply branch. The tail end of the flushing pipeline of the water purification equipment is connected to the flushing water return water of the adaptive secondary water supply equipment. The head end of the pipe and the tail end of the direct drinking water outlet pipe of the water purification equipment are connected to a direct drinking water supply pipe (7), the tail end of the direct drinking water supply pipe is connected to the direct drinking water return pipe of the water purification equipment, a plurality of direct drinking water supply branches (8) are connected to the direct drinking water supply pipe, the direct drinking water supply branch pipes are connected to the direct drinking water consumption end, the head and tail ends of the pressure stabilizing pipe of the adaptive pressure stabilizing equipment are connected in series to the direct drinking water supply branch pipe, the raw water control cabinet of the adaptive secondary water supply equipment, the pressure stabilizing control cabinet of the adaptive pressure stabilizing equipment and the purification control cabinet of the water purification equipment are communicated with the central control cabinet.

2. The integrated pipeline quality-differentiated water supply system according to claim 1 is characterized by: The regulating water tank of the adaptive secondary water supply equipment is provided with a raw water discharge pipe (216) and a raw water disinfection and sterilization device (217), the raw water discharge pipe is provided with a raw water discharge valve (218), an air filter is provided at the raw water air hole on the regulating water tank, and the raw water disinfection and sterilization device and the raw water discharge valve are electrically connected to the raw water control cabinet.

3. The integrated pipeline quality-differentiated water supply system according to claim 1 is characterized in that: A pressure stabilizing tank (219) is connected to the raw water pipeline at the rear end of the raw water pressure sensor II of the adaptive secondary water supply equipment.

4. The integrated pipeline quality-differentiated water supply system according to claim 1 is characterized in that: A backwash tank (428) is connected to the purification pipeline between the medium-precision filter component of the water purification equipment and the high-pressure water inlet valve.

5. The integrated pipeline quality-differentiated water supply system according to claim 1 is characterized in that: An air filter is provided at the air inlet of the one-way air inlet valve of the accumulator tank adapted to the pressure stabilizing device.

6. The integrated pipeline quality-differentiated water supply system according to claim 1 is characterized in that: A plurality of direct-use branch pipes (9) are connected to the domestic water supply pipeline, and the direct-use branch pipes are connected to the direct-use water end.

Images