A high-rise building water supply system surplus water head recovery system and method

Abstract

The application discloses a high-rise building water supply system surplus water head recovery system and method, which comprises a water supply pipeline, an electromagnetic valve, a pressure reducing valve, a control cabinet, a pressure sensor, a hydraulic generator and a power storage circuit. The system adopts a double-channel design. Water in the high-rise building water supply system flows through the hydraulic generator to generate electric energy and store the electric energy in the power storage circuit for use of the pressure sensor. When the pressure of the water outlet pipeline is higher than a set pressure control value, the branch valve is closed, and the water flow passes through the pressure reducing valve to reduce the pressure and is supplied to the user, so that the pressure demand of daily water use is ensured, and the surplus water head of the water outlet of the high-position water tank of the high-rise building is converted into electric energy through the gravity flow to the low-position user, and the electric energy is stored and utilized.

Description

Technical Field

[0001] This invention relates to the field of secondary water supply technology, and in particular to a system and method for recovering excess water head in a high-rise building water supply system. Background Technology

[0002] With urbanization, high-rise buildings are becoming increasingly common, and their designs are becoming more sophisticated. However, due to their height and high water pressure, municipal water supply pressure often cannot meet the requirements. Therefore, booster and storage systems are frequently installed to regulate water supply. Because of the significant height difference in high-rise buildings, to avoid negative pressure and suction phenomena in the upper floors and excessive water pressure in the lower floors, which could adversely affect the piping system and cause noise and splashing when users use water, high-rise buildings typically implement vertical zoned water supply to reduce pressure differences. Current Chinese standards and regulations, such as the "Code for Design of Building Water Supply and Drainage," "Code for Design of Residential Buildings," and "Green Design Standard for Civil Buildings," all stipulate corresponding control requirements for water supply pressure. Currently, the most common approach is to adopt zoned water supply, using pressure-reducing valves in different zones to control the incoming water pressure to meet relevant requirements.

[0003] High-rise buildings use pressure-reducing valves for pressure control, which can distribute water pressure and flow evenly across different zones, but excess head cannot be utilized, resulting in energy waste. To implement the national energy conservation and low-carbon development goals, energy-efficient building design is imperative. Summary of the Invention

[0004] To overcome the shortcomings of the existing technology, the present invention aims to provide a system and method for recovering excess water head in a high-rise building water supply system, which can recover and utilize the excess energy of the water supply system while ensuring the daily water pressure demand.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The first aspect of this application discloses a surplus water head recovery system for a high-rise building water supply system, comprising: water supply pipes, solenoid valves, pressure reducing valves, a control cabinet, a pressure sensor, a hydraulic generator, and an energy storage circuit; wherein,

[0007] The system employs a dual-path design. Water flows by gravity through a hydroelectric generator to generate electricity, which is stored in the battery's energy storage circuit. The water then splits into two branch pipes, namely Branch One and Branch Two. Both branch pipes are equipped with solenoid valves connected to a control cabinet. Branch Two's solenoid valve is also equipped with a pressure-reducing valve. The two branch pipes are then merged and connected to the inlet pipe. A pressure sensor is located at the inlet pipe and connected to the control cabinet. The pressure sensor transmits the collected pressure signal to the control cabinet, which controls the opening and closing of the branch pipe solenoid valves based on the magnitude of the received pressure signal.

[0008] Preferably, the solenoid valve is a normally open solenoid valve.

[0009] Preferably, the control cabinet obtains the real-time pressure signal from the inlet pipe and sends corresponding control commands to the solenoid valves of the pipe branch.

[0010] Preferably, the power of the hydroelectric generator and the turbine speed can be adjusted according to the actual pressure conditions.

[0011] Preferably, the hydroelectric generator includes a voltage regulator.

[0012] The second aspect of this application discloses a method for recovering excess head in a high-rise building water supply system, applied to the aforementioned high-rise building water supply system excess head recovery system. The recovery method includes the following steps:

[0013] Step S1: In the high-rise building water supply system, water flows by gravity through a hydroelectric generator to generate electrical energy, which is stored in an energy storage circuit and used by the pressure sensor.

[0014] Step S2: The pressure sensor at the inlet pipe monitors the water pressure signal in real time and transmits it to the control cabinet.

[0015] Step S3: When the pressure signal sent by the pressure sensor is lower than the set pressure control value, the control cabinet sends a control command to the solenoid valve of branch two, the solenoid valve of branch two closes, and the water flow is directly supplied to the user through branch one.

[0016] Step S4: When the pressure signal sent by the pressure sensor is higher than the set pressure control value, the control cabinet sends a control command to the solenoid valve of branch one. The solenoid valve of branch one closes, and the water flows through branch two. After being depressurized by the pressure reducing valve, the water is supplied to the user.

[0017] Preferably, the set pressure control value is set according to the pressure control targets for building water supply points specified in current national and local standards.

[0018] Preferably, the hydroelectric generator includes a voltage regulator. After the output current of the adjustable hydroelectric generator is stabilized, the voltage is adjusted by a voltage regulator tube to keep the output voltage consistent with the voltage of the energy storage circuit.

[0019] Preferably, the electrical energy generated by the system can be used by other external devices or instruments.

[0020] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0021] This invention provides a system and method for recovering excess head in the water supply system of high-rise buildings. It recovers and utilizes excess energy from the water supply system, enabling monitoring instruments to be powered by in-situ hydrodynamics and providing power for external devices or instruments. Simultaneously, it prevents excessive water pressure in the middle and lower zones of high-rise buildings from adversely affecting the pipeline system. This invention's technical solution reduces energy waste while ensuring daily water pressure requirements, promoting the energy-saving and low-carbon development of building water supply systems. Attached Figure Description

[0022] The accompanying drawings, which constitute a part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of a high-rise building water supply system surplus head recovery system according to the present invention;

[0024] Figure 2 This is a flowchart illustrating the steps of a method for recovering excess water head in a high-rise building water supply system according to the present invention.

[0025] Legend:

[0026] 1. Water supply pipe; 2. Branch line solenoid valve 1; 3. Branch line solenoid valve 2; 4. Pressure reducing valve; 5. Control cabinet; 6. Pressure sensor; 7. Hydroelectric generator; 8. Energy storage circuit. Detailed Implementation

[0027] The following describes the embodiments of the present invention through specific examples and in conjunction with the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific examples, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0028] Example:

[0029] Figure 1 This is a schematic diagram of the structure of a high-rise building water supply system surplus head recovery system according to the present invention.

[0030] like Figure 1As shown, a surplus water head recovery system for a high-rise building water supply system includes: a water supply pipe 1, a branch solenoid valve 2, a branch solenoid valve 3, a pressure reducing valve 4, a control cabinet 5, a pressure sensor 6, a hydroelectric generator 7, and an energy storage circuit 8. The water supply pipe 1 adopts a dual-path design. Water flows by gravity through the hydroelectric generator 7 to generate electricity, which is stored in the energy storage circuit 8. It then splits into two branch pipes, namely branch one and branch two. Branch one is equipped with solenoid valve 2, and branch two is equipped with solenoid valve 3 and pressure reducing valve 4. Solenoid valves 2 and 3 are connected to the control cabinet 5. The outlet pipe formed by the merging of branch one and branch two connects to the inlet pipe. A pressure sensor 6 is installed at the inlet pipe and is connected to the control cabinet 5.

[0031] In a preferred embodiment, solenoid valves 2 and 3 are normally open solenoid valves. The control cabinet 5 receives the real-time pressure signal from the inlet pipe and sends corresponding control commands to solenoid valves 2 and 3.

[0032] In a specific embodiment of the present invention, the pressure control value is set according to the pressure control targets for building water supply points specified in current national and local standards.

[0033] Specifically, pressure sensor 6 transmits the pressure signal collected at the inlet pipe to control cabinet 5. Solenoid valves 2 and 3 are controlled by control cabinet 5 based on the signal collected by pressure sensor 6. When the water pressure is lower than the set pressure control value, solenoid valve 3 of branch two closes, and water flows directly to the user through branch one. When the water pressure is higher than the set pressure control value, solenoid valve 2 of branch one closes, and water flows through branch two through pressure reducing valve 4, and is then supplied to the user after pressure reduction.

[0034] Specifically, the hydroelectric generator 7 includes a voltage regulator. After the output current of the hydroelectric generator is stabilized by adjustment, the voltage is adjusted by the voltage regulator tube to keep the output voltage consistent with the voltage of the energy storage circuit 8.

[0035] Specifically, the power of the hydroelectric generator 7 and the speed of the turbine can be adjusted according to the actual pressure conditions.

[0036] Specifically, the electrical energy generated by the above system is used by the pressure sensor 6.

[0037] Figure 2 This is a flowchart illustrating the steps of a method for recovering excess water head in a high-rise building water supply system according to the present invention. Figure 2 As shown, based on the above system, a method for recovering excess head in a high-rise building water supply system specifically includes the following steps:

[0038] In step S1, the water in the high-rise building's water supply system flows by gravity through the hydroelectric generator 7 to generate electrical energy, which is stored in the energy storage circuit 8 and used by the pressure sensor 6.

[0039] In step S2, the pressure sensor 6 at the inlet pipe monitors the water pressure signal in real time and transmits it to the control cabinet 5.

[0040] Step S3: When the water pressure is lower than the set pressure control value, the control cabinet 5 sends a control command to the solenoid valve 3 of branch line 2. The solenoid valve 3 closes, and the water flow is directly supplied to the user through branch line 1.

[0041] In step S4, when the water pressure is higher than the set pressure control value, the control cabinet 5 sends a control command to the solenoid valve 2 of branch line 1. The solenoid valve 2 closes, and the water flows through branch line 2. After being reduced in pressure by the pressure reducing valve 4, the water is supplied to the user.

[0042] In summary, this invention provides a system and method for recovering excess head in the water supply system of high-rise buildings. It recovers and utilizes excess energy from the water supply system, enabling monitoring instruments to be powered by in-situ hydrodynamics, which can also be used by external equipment or instruments. Simultaneously, it prevents excessive water pressure in the middle and low-lying areas of high-rise buildings from adversely affecting the pipeline system. This invention's technical solution reduces energy waste while ensuring daily water pressure requirements, promoting the energy-saving and low-carbon development of building water supply systems.

[0043] The specific embodiments of the present invention have been described in detail above, but they are merely examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention. Therefore, all equivalent transformations and modifications made without departing from the spirit and scope of the present invention should be covered within the scope of the present invention.

Claims

1. A surplus water head recovery system for a high-rise building water supply system, characterized in that, include: Water supply pipes, solenoid valves, pressure reducing valves, control cabinets, pressure sensors, hydroelectric generators, and energy storage circuits; among which, The system employs a dual-path design. Water flows by gravity through a hydroelectric generator to generate electricity, which is stored in the battery's energy storage circuit. The water then splits into two branch pipes, namely Branch One and Branch Two. Both branch pipes are equipped with solenoid valves connected to a control cabinet. Branch Two also has a pressure-reducing valve downstream of its solenoid valve. The two branch pipes are then merged and connected to the inlet pipe. A pressure sensor is located at the inlet pipe and connected to the control cabinet. The pressure sensor transmits the collected pressure signal to the control cabinet, which controls the opening and closing of the branch pipe solenoid valves based on the magnitude of the received pressure signal. The control cabinet receives the real-time pressure signal from the inlet pipe and sends corresponding control commands to the solenoid valves of the branch pipes: when the pressure signal sent by the pressure sensor is lower than the set pressure control value, the control cabinet sends a control command to the solenoid valve of branch two, the solenoid valve of branch two closes, and the water flows directly to the user through branch one; when the pressure signal sent by the pressure sensor is higher than the set pressure control value, the control cabinet sends a control command to the solenoid valve of branch one, the solenoid valve of branch one closes, the water flows through branch two, and is supplied to the user after being reduced in pressure by the pressure reducing valve.

2. The excess head recovery system for a high-rise building water supply system according to claim 1, characterized in that, The solenoid valve is a normally open solenoid valve.

3. A surplus water head recovery system for a high-rise building water supply system according to claim 1, characterized in that, The power of the hydroelectric generator and the speed of the turbine can be adjusted according to the actual pressure conditions.

4. A surplus water head recovery system for a high-rise building water supply system according to claim 1, characterized in that, The hydroelectric generator includes a voltage regulator.

5. A method for recovering excess head in a high-rise building water supply system as described in any one of claims 1 to 4, characterized in that, Includes the following steps: Step S1: In the high-rise building water supply system, water flows by gravity through a hydroelectric generator to generate electrical energy, which is stored in an energy storage circuit and used by the pressure sensor. Step S2: The pressure sensor at the inlet pipe monitors the water pressure signal in real time and transmits it to the control cabinet. Step S3: When the pressure signal sent by the pressure sensor is lower than the set pressure control value, the control cabinet sends a control command to the solenoid valve of branch two, the solenoid valve of branch two closes, and the water flow is directly supplied to the user through branch one. Step S4: When the pressure signal sent by the pressure sensor is higher than the set pressure control value, the control cabinet sends a control command to the solenoid valve of branch one. The solenoid valve of branch one closes, and the water flows through branch two. After being depressurized by the pressure reducing valve, the water is supplied to the user.

6. The recycling method according to claim 5, characterized in that, The hydroelectric generator includes a voltage regulator. After the output current of the adjustable hydroelectric generator is stabilized, the voltage is adjusted by a voltage regulator tube to keep the output voltage consistent with the voltage of the energy storage circuit.

7. The recycling method according to claim 5, characterized in that, The electrical energy generated by the system can be used by other external devices or instruments.

Images