Public hot water system utilizing high-energy waves for sterilization and sterilization method

Abstract

The invention provides a public hot water system utilizing high-energy waves for sterilization and a sterilization method, and belongs to the technical field of hot water sterilization, and the public hot water system comprises a hot water tank, an external circulation sterilization system and an internal circulation sterilization system. The external circulation sterilization system comprises a hot water outlet pipe, a flow meter, a first high-energy wave sterilization device, a one-way valve, a hot water return pipe, a first circulating pump, a second high-energy wave sterilization device, a water inlet valve and a cold water inlet pipe, and the internal circulation sterilization system comprises a circulating hot water pipe, a second circulating pump and a third high-energy wave sterilization device. According to the invention, physiological structures of microorganisms such as bacteria, viruses and the like can be destroyed to kill or inhibit the microorganisms; the water quality is purified, bacteria and microorganisms are prevented from breeding in the system, it is ensured that the microorganisms in the public hot water system are effectively killed, and the biological and chemical safety in the public hot water system is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of hot water sterilization, and in particular to a public hot water system and a sterilization method utilizing high energy waves for sterilization. Background Art

[0002] A public hot water system generally refers to a centralized hot water supply system for multiple users. Such a system is usually responsible for heating water by a central facility and delivering hot water to each user's residence, commercial building or other facilities. Although the delivered hot water has been disinfected, the hydraulic retention time of the public hot water system is very long. The hot water in the water storage tank is affected by many factors such as the water quality, water temperature, storage time and number of users of the incoming water, which is conducive to the attachment and growth of bacteria and pathogenic microorganisms on the heater wall and the inner wall of the pipe, providing conditions for the formation of biofilms. Moreover, they can still survive after being heated by the water heater, which is very harmful to the human body and can easily cause infection. This makes the public hot water quality generally have safety hazards. If a sterilization and disinfection device is not set, biological safety cannot be effectively guaranteed. In view of the above situation, the present invention provides a high-energy wave sterilization device and method in a public hot water system, which has the advantages of safety, reliability, uniform sterilization, high efficiency and good sterilization effect, ensuring the effective killing of microorganisms in the public hot water system and ensuring the biological and chemical safety in the public hot water system. Summary of the invention

[0003] The purpose of the present invention is to provide a public hot water system and a sterilization method using high-energy waves for sterilization, which can destroy the physiological structure of microorganisms such as bacteria and viruses to kill or inhibit them; purify water quality, prevent bacteria and microorganisms from multiplying in the system, ensure the effective killing of microorganisms in the public hot water system, and ensure the biological and chemical safety of the public hot water system.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] In a first aspect, a public hot water system utilizing high energy wave sterilization is characterized in that it includes a hot water tank, an external circulation sterilization system, and an internal circulation sterilization system.

[0006] The external circulation sterilization system includes a hot water outlet pipe, a flow meter, a first high-energy wave sterilization device, a one-way valve, a hot water return pipe, a first circulation pump, a second high-energy wave sterilization device, an inlet valve, and a cold water inlet pipe. The water inlet end of the hot water tank is connected to the cold water inlet pipe, and the water inlet of the cold water inlet pipe is provided with an inlet valve. The water outlet end of the hot water tank is connected to the flow meter and the first high-energy wave sterilization device through the water inlet end of the hot water outlet pipe, the water inlet end of the one-way valve is connected to the first high-energy wave sterilization device through the water outlet end of the hot water outlet pipe, the water outlet end of the one-way valve is connected to the first high-energy wave sterilization device through the water inlet end of the hot water return pipe, and the cold water inlet pipe is connected to the second high-energy wave sterilization device through the water outlet end of the hot water return pipe.

[0007] The internal circulation sterilization system includes a circulating hot water pipe, a second circulating pump, and a third high-energy wave sterilization device. The lower end of the outer wall of the hot water tank is connected to the second circulating pump and the third high-energy wave sterilization device in sequence through the water inlet end of the circulating hot water pipe, and the upper end of the outer wall of the hot water tank is connected to the third high-energy wave sterilization device through the water outlet end of the circulating hot water pipe.

[0008] Furthermore, the hot water outlet pipe is connected to several independent user ends near the one-way valve, and the hot water in the hot water tank is sterilized by the first high-energy wave sterilization device and then transported to several independent user ends through the hot water outlet pipe.

[0009] Furthermore, the hot water tank includes a water level sensor, a temperature sensor and a controller, the water level sensor and the temperature sensor are arranged inside the hot water tank, the water level sensor is used to monitor the water level changes in the hot water tank in real time, the temperature sensor is used to monitor the temperature changes of the hot water in the hot water tank in real time, and the controller is arranged on the outer wall of the hot water tank, and the controller is used to intelligently control the operating status of the first circulation pump, the second circulation pump, the first high-energy wave sterilization device, the second high-energy wave sterilization device, the third high-energy wave sterilization device and the water inlet valve.

[0010] Further, the first high-energy wave sterilization device includes a first high-energy wave generator, a first high-energy wave transducer and a first high-energy wave probe, the first high-energy wave generator is arranged at the top of the first high-energy wave sterilization device, the first high-energy wave transducer is arranged below the first high-energy wave generator, and the first high-energy wave probe is arranged below the first high-energy wave transducer, the first high-energy wave generator, the first high-energy wave transducer and the first high-energy wave probe are electrically connected in sequence through cables, the first high-energy wave generator and the first high-energy wave transducer are arranged outside the hot water outlet pipe, and the first high-energy wave probe is arranged inside the hot water outlet pipe.

[0011] The high-frequency electrical signal generated by the first high-energy wave generator is transmitted to the first high-energy wave transducer for conversion through a cable. The first high-energy wave transducer is used to convert the electrical signal into sound waves. The first high-energy wave probe emits the sound wave signal generated by the first high-energy wave transducer into the medium.

[0012] Further, the second high-energy wave sterilization device includes a second high-energy wave generator, a second high-energy wave transducer and a second high-energy wave probe, the second high-energy wave generator is arranged at the top of the second high-energy wave sterilization device, the second high-energy wave transducer is arranged below the second high-energy wave generator, and the second high-energy wave probe is arranged below the second high-energy wave transducer, the second high-energy wave generator, the second high-energy wave transducer and the second high-energy wave probe are electrically connected in sequence through a cable, the second high-energy wave generator and the second high-energy wave transducer are arranged outside the hot water return pipe, and the second high-energy wave probe is arranged inside the hot water return pipe.

[0013] The high-frequency electrical signal generated by the second high-energy wave generator is transmitted to the second high-energy wave transducer for conversion through a cable. The second high-energy wave transducer is used to convert the electrical signal into sound waves. The second high-energy wave probe emits the sound wave signal generated by the second high-energy wave transducer into the medium.

[0014] Further, the third high-energy wave sterilization device includes a third high-energy wave generator, a third high-energy wave transducer and a third high-energy wave probe, the third high-energy wave generator is arranged at the top of the third high-energy wave sterilization device, the third high-energy wave transducer is arranged below the third high-energy wave generator, and the third high-energy wave probe is arranged below the third high-energy wave transducer, the third high-energy wave generator, the third high-energy wave transducer and the third high-energy wave probe are electrically connected in sequence through cables, the third high-energy wave generator and the third high-energy wave transducer are arranged outside the circulating hot water pipe, and the third high-energy wave probe is arranged inside the circulating hot water pipe.

[0015] The high-frequency electrical signal generated by the third high-energy wave generator is transmitted to the third high-energy wave transducer for conversion through a cable. The third high-energy wave transducer is used to convert the electrical signal into sound waves. The third high-energy wave probe emits the sound wave signal generated by the third high-energy wave transducer into the medium.

[0016] Furthermore, the flow meter is used to monitor the usage of hot water in the hot water outlet pipe in real time.

[0017] Furthermore, the high-energy wave frequency emitted by the first high-energy wave probe, the second high-energy wave probe and the third high-energy wave probe is 20-30kHz, and the energy density per unit area within a diameter of 20cm is 500-600W / CM 2 .

[0018] In a second aspect, a method for sterilizing a public hot water system using high energy wave sterilization is characterized by comprising the following steps:

[0019] 1) When the flow meter in the public hot water system detects that hot water is consumed in the hot water outlet pipe, the controller controls the first high-energy wave sterilization device to start and perform hot water sterilization.

[0020] 2) When the flow meter in the public hot water system does not detect any hot water consumption in the hot water outlet pipe, the first high-energy wave sterilization device is in a closed state.

[0021] 3) When the flow meter in the public hot water system does not detect any hot water consumption in the hot water outlet pipe for more than 30 minutes, the controller controls the first circulation pump, the first high-energy wave sterilization device, and the second high-energy wave sterilization device to start, and return the cooling water in the hot water outlet pipe and the hot water return pipe to the hot water tank for cooling water reflux sterilization. The flow rate of the first circulation pump is 6 to 10 L / min, and the circulation time is 5 to 10 minutes.

[0022] 4) When it is monitored that the public hot water system does not consume hot water for more than 24 hours, the controller controls the second circulation pump and the third high-energy wave sterilization device to start and perform internal circulation high-energy wave sterilization. The flow rate of the second circulation pump is 6 to 10 L / min. After the hot water in the hot water tank circulates for 2 cycles, the internal circulation sterilization system is turned off.

[0023] 5) When the water level sensor in the public hot water system detects that the water level in the hot water tank is lower than the minimum water level line, the controller controls the water inlet valve to open. When the water level in the hot water tank reaches the set water level, the water inlet valve is closed and the internal circulation sterilization system is turned on. At the same time, the hot water in the hot water tank is heated to the set temperature and maintained at a constant temperature. The flow rate of the second circulation pump is 6 to 10 L / min. After the hot water in the hot water tank circulates for one cycle, the internal circulation sterilization system is turned off.

[0024] Advantages of the present invention:

[0025] 1. The present invention uses high-intensity ultrasound to destroy the physiological structure of microorganisms such as bacteria and viruses, thereby achieving a method of killing or inhibiting them. In a hot water system, when ultrasound propagates in a liquid, a high-intensity cavitation effect is generated, that is, tiny bubbles are formed in the liquid. These bubbles continue to grow and burst under the vibration of ultrasound, generating local high temperature and high pressure, thereby forming tiny shock waves that have a destructive effect on microorganisms.

[0026] 2. The high-energy wave sterilization system for public hot water in the present invention can be used to purify water quality, prevent bacteria and microorganisms from multiplying in the system, ensure effective killing of microorganisms in the public hot water system, and ensure biological and chemical safety in the public hot water system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a public hot water system that utilizes high-energy waves for sterilization according to the present invention;

[0028] Figure 2 It is a structural schematic diagram of the connection between the first high-energy wave sterilization device of the present invention and the hot water outlet pipe;

[0029] Figure 3 It is a structural schematic diagram of the second high-energy wave sterilization device of the present invention being connected to the hot water return pipe;

[0030] Figure 4 It is a schematic structural diagram of the third high energy wave sterilization device of the present invention connected to the circulating hot water pipe;

[0031] In the figure: 1. hot water tank, 2. water level sensor, 3. temperature sensor, 4. controller, 5. hot water outlet pipe, 6. flow meter, 7. first high-energy wave sterilization device, 7-1. first high-energy wave generator, 7-2. first high-energy wave transducer, 7-3. first high-energy wave probe, 8. one-way valve, 9. hot water return pipe, 10. first circulation pump, 11. second high-energy wave sterilization device, 11-1. second high-energy wave generator, 11-2. second high-energy wave transducer, 11-3. second high-energy wave probe, 12. water inlet valve, 13. cold water inlet pipe, 14. circulating hot water pipe, 15. second circulation pump, 16. third high-energy wave sterilization device, 16-1. third high-energy wave generator, 16-2. third high-energy wave transducer, 16-3. third high-energy wave probe. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0033] like Figure 1 As shown, a public hot water system using high-energy waves for sterilization includes a hot water tank 1, an external circulation sterilization system and an internal circulation sterilization system.

[0034] The external circulation sterilization system includes a hot water outlet pipe 5, a flow meter 6, a first high-energy wave sterilization device 7, a one-way valve 8, a hot water return pipe 9, a first circulation pump 10, a second high-energy wave sterilization device 11, a water inlet valve 12, and a cold water inlet pipe 13. The water inlet end of the hot water tank 1 is connected to the cold water inlet pipe 13, and the water inlet of the cold water inlet pipe 13 is provided with an inlet valve 12. The water outlet end of the hot water tank 1 is connected to the flow meter 6 and the first high-energy wave sterilization device 7 through the water inlet end of the hot water outlet pipe 5, the water inlet end of the one-way valve 8 is connected to the first high-energy wave sterilization device 7 through the water outlet end of the hot water outlet pipe 5, the water outlet end of the one-way valve 8 is connected to the first circulation pump 10 and the second high-energy wave sterilization device 11 through the water inlet end of the hot water return pipe 9, and the cold water inlet pipe 13 is connected to the second high-energy wave sterilization device 11 through the water outlet end of the hot water return pipe 9.

[0035] The internal circulation sterilization system includes a circulating hot water pipe 14, a second circulating pump 15, and a third high-energy wave sterilization device 16. The lower end of the outer wall of the hot water tank 1 is connected to the second circulating pump 15 and the third high-energy wave sterilization device 16 in sequence through the water inlet end of the circulating hot water pipe 14, and the upper end of the outer wall of the hot water tank 1 is connected to the third high-energy wave sterilization device 16 through the water outlet end of the circulating hot water pipe 14.

[0036] As a preferred embodiment of the present invention, the hot water outlet pipe 5 is connected to several independent user ends near the one-way valve 8, and the hot water in the hot water tank 1 is sterilized by the first high-energy wave sterilization device 7 and then transported to several independent user ends through the hot water outlet pipe 5.

[0037] As a preferred embodiment of the present invention, the hot water tank 1 includes a water level sensor 2, a temperature sensor 3 and a controller 4. The water level sensor 2 and the temperature sensor 3 are arranged inside the hot water tank 1. The water level sensor 2 is used to monitor the water level changes in the hot water tank 1 in real time. The temperature sensor 3 is used to monitor the temperature changes of the hot water in the hot water tank 1 in real time. The controller 4 is arranged on the outer wall of the hot water tank 1. The controller 4 is used to intelligently control the operating status of the first circulation pump 10, the second circulation pump 15, the first high-energy wave sterilization device 7, the second high-energy wave sterilization device 11, the third high-energy wave sterilization device 16 and the water inlet valve 12.

[0038] As a preferred embodiment of the present invention, Figure 2As shown, the first high-energy wave sterilization device 7 includes a first high-energy wave generator 7-1, a first high-energy wave transducer 7-2 and a first high-energy wave probe 7-3. The first high-energy wave generator 7-1 is arranged at the top of the first high-energy wave sterilization device 7, the first high-energy wave transducer 7-2 is arranged below the first high-energy wave generator 7-1, and the first high-energy wave probe 7-3 is arranged below the first high-energy wave transducer 7-2. The first high-energy wave generator 7-1, the first high-energy wave transducer 7-2 and the first high-energy wave probe 7-3 are electrically connected in sequence through cables. The first high-energy wave generator 7-1 and the first high-energy wave transducer 7-2 are arranged outside the hot water outlet pipe 5, and the first high-energy wave probe 7-3 is arranged inside the hot water outlet pipe 5.

[0039] The high-frequency electrical signal generated by the first high-energy wave generator 7-1 is transmitted to the first high-energy wave transducer 7-2 for conversion through a cable. The first high-energy wave transducer 7-2 is used to convert the electrical signal into sound waves. The first high-energy wave probe 7-3 transmits the sound wave signal generated by the first high-energy wave transducer 7-2 into the medium.

[0040] As a preferred embodiment of the present invention, Figure 3 As shown, the second high-energy wave sterilization device 11 includes a second high-energy wave generator 11-1, a second high-energy wave transducer 11-2 and a second high-energy wave probe 11-3. The second high-energy wave generator 11-1 is arranged at the top of the second high-energy wave sterilization device 11, the second high-energy wave transducer 11-2 is arranged below the second high-energy wave generator 11-1, and the second high-energy wave probe 11-3 is arranged below the second high-energy wave transducer 11-2. The second high-energy wave generator 11-1, the second high-energy wave transducer 11-2 and the second high-energy wave probe 11-3 are electrically connected in sequence through cables. The second high-energy wave generator 11-1 and the second high-energy wave transducer 11-2 are arranged outside the hot water return pipe 9, and the second high-energy wave probe 11-3 is arranged inside the hot water return pipe 9.

[0041] The high-frequency electrical signal generated by the second high-energy wave generator 11-1 is transmitted to the second high-energy wave transducer 11-2 for conversion through a cable. The second high-energy wave transducer 11-2 is used to convert the electrical signal into sound waves. The second high-energy wave probe 11-3 transmits the sound wave signal generated by the second high-energy wave transducer 11-2 into the medium.

[0042] As a preferred embodiment of the present invention, Figure 4As shown, the third high-energy wave sterilization device 16 includes a third high-energy wave generator 16-1, a third high-energy wave transducer 16-2 and a third high-energy wave probe 16-3. The third high-energy wave generator 16-1 is arranged at the top of the third high-energy wave sterilization device 16, the third high-energy wave transducer 16-2 is arranged below the third high-energy wave generator 16-1, and the third high-energy wave probe 16-3 is arranged below the third high-energy wave transducer 16-2. The third high-energy wave generator 16-1, the third high-energy wave transducer 16-2 and the third high-energy wave probe 16-3 are electrically connected in sequence through cables. The third high-energy wave generator 16-1 and the third high-energy wave transducer 16-2 are arranged outside the circulating hot water pipe 14, and the third high-energy wave probe 16-3 is arranged inside the circulating hot water pipe 14.

[0043] The high-frequency electric signal generated by the third high-energy wave generator 16-1 is transmitted to the third high-energy wave transducer 16-2 for conversion through a cable. The third high-energy wave transducer 16-2 is used to convert the electric signal into sound waves. The third high-energy wave probe 16-3 transmits the sound wave signal generated by the third high-energy wave transducer 16-2 into the medium.

[0044] As a preferred embodiment of the present invention, the flow meter 6 is used to monitor the usage of hot water in the hot water outlet pipe 5 in real time.

[0045] As a preferred embodiment of the present invention, the high energy wave frequency emitted by the first high energy wave probe 7-3, the second high energy wave probe 11-3 and the third high energy wave probe 16-3 is 20-30kHz, and the energy density per unit area within a diameter of 20cm is 500-600W / CM 2 .

[0046] Based on the above-mentioned public hot water system using high-energy wave sterilization, the present invention also proposes a sterilization method for a public hot water system using high-energy wave sterilization, comprising the following steps:

[0047] 1) When the flow meter 6 in the public hot water system detects that hot water is consumed in the hot water outlet pipe 5, the controller 4 controls the first high-energy wave sterilization device 7 to start and perform hot water sterilization.

[0048] When the flow meter 6 detects the flow of hot water, it means that the hot water is being used. At this time, starting the first high-energy wave sterilization device 7 can ensure that the hot water is sterilized in real time during the flow process. The first high-energy wave sterilization device 7 destroys the cell structure of bacteria and microorganisms in the water by emitting high-energy waves of a specific frequency, thereby effectively reducing or eliminating bacteria and microorganisms in the water and ensuring the sanitation and safety of the water quality. Bacteria and microorganisms in the hot water system are easy to reproduce in a suitable temperature and environment. The activation of the first high-energy wave sterilization device 7 can effectively inhibit the growth of bacteria and prevent the deterioration of water quality. Through real-time sterilization, the accumulation of bacteria and microorganisms in the system can be reduced, thereby reducing the frequency of system maintenance and cleaning, and improving the operating efficiency of the entire hot water system. Providing hygienic and safe hot water can enhance users' trust and satisfaction with the hot water system, especially in public places such as hotels, hospitals, and schools. Hygienic and safe hot water is crucial to user experience. In some countries and regions, public hot water systems need to meet specific hygiene standards. The use of the first high-energy wave sterilization device 7 helps ensure that the hot water system meets these standards.

[0049] 2) When the flow meter 6 in the public hot water system does not detect any hot water consumption in the hot water outlet pipe 5, the first high-energy wave sterilization device 7 is in a closed state.

[0050] The first high-energy wave sterilization device 7 does not consume electrical energy when it is turned off, which can save energy. This is especially important for large public hot water systems, because these systems may need to run for a long time, and energy-saving measures can significantly reduce operating costs. At the same time, frequent starting and shutting down of equipment may shorten the service life of the equipment. By starting the first high-energy wave sterilization device 7 only when needed, the wear and tear of the equipment can be reduced and its service life can be extended. If the hot water is not consumed, it is unnecessary to sterilize it. Turning off the first high-energy wave sterilization device 7 can avoid excessive treatment of unused hot water. By using the first high-energy wave sterilization device 7 only when needed, the economic benefits of the entire hot water system can be improved because unnecessary energy consumption and maintenance costs can be reduced.

[0051] 3) When the flow meter 6 in the public hot water system does not detect any hot water consumption in the hot water outlet pipe 5 for more than 30 minutes, the controller 4 controls the first circulation pump 10, the first high-energy wave sterilization device 7, and the second high-energy wave sterilization device 11 to start, and return the cooling water in the hot water outlet pipe 5 and the hot water return pipe 9 to the hot water tank 1 for cooling water reflux sterilization. The flow rate of the first circulation pump 10 is 6 to 10 L / min, and the circulation time is 5 to 10 min.

[0052] By returning the cooling water to the hot water tank 1, it is ensured that bacteria and microorganisms will not grow in the cooling water in the pipeline. If the hot water stays in the system for a long time without flowing, the water quality may deteriorate. By sterilizing when the hot water flows, the water quality can be kept stable. The first high-energy wave sterilization device 7 and the second high-energy wave sterilization device 11 sterilize the returned water during the circulation process to ensure the sanitary safety of the water quality. By controlling the flow rate and circulation time of the first circulation pump 10, unnecessary energy waste can be avoided while ensuring the sterilization effect. By reducing the accumulation of sediment in the pipeline, maintenance requirements and related costs can be reduced. By controlling the flow rate and circulation time of the first circulation pump 10, the safe operation of the system can be ensured and safety risks caused by equipment failure or other reasons can be avoided.

[0053] 4) When it is monitored that the public hot water system does not consume hot water for more than 24 hours, the controller 4 controls the second circulation pump 15 and the third high-energy wave sterilization device 16 to start and perform internal circulation high-energy wave sterilization. The flow rate of the second circulation pump 15 is 6 to 10 L / min. After the hot water in the hot water tank 1 circulates for 2 cycles, the internal circulation sterilization system is turned off.

[0054] 5) When the water level sensor 2 in the public hot water system detects that the water level in the hot water tank 1 is lower than the minimum water level line, the controller 4 controls the water inlet valve 12 to open. When the water level in the hot water tank 1 reaches the set water level, the water inlet valve 12 is closed, and the internal circulation sterilization system is turned on. At the same time, the hot water in the hot water tank 1 is heated to the set temperature and maintained at a constant temperature. The flow rate of the second circulation pump 15 is 6 to 10 L / min. After the hot water in the hot water tank 1 circulates for one cycle, the internal circulation sterilization system is turned off.

[0055] The water level sensor 2 detects and controls the opening and closing of the water inlet valve 12 to ensure that the water level in the hot water tank 1 is maintained within a suitable range. The internal circulation sterilization system is turned on, and the water in the hot water tank 1 is sterilized by internal circulation using high-energy waves to ensure the sanitary safety of the water quality. The hot water in the hot water tank 1 is heated to a set temperature and maintained at a constant temperature to ensure that hot water is available at any time to meet the needs of users. By controlling the flow rate and circulation time of the second circulation pump 15, unnecessary energy waste can be avoided while ensuring the sterilization effect. By automatically controlling the water level and temperature, it can be ensured that the hot water system is ready to provide hot water at any time, thereby improving the response speed and efficiency of the system. By circulating and sterilizing when needed, the economic benefits of the entire hot water system can be improved because this can reduce unnecessary energy consumption and maintenance costs.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art can still adjust the technical solutions described in the above embodiments or replace some of the technical features by equivalents. Therefore, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A public hot water system using high energy waves for sterilization, characterized in that: It comprises a hot water tank (1), an external circulation sterilization system and an internal circulation sterilization system; The external circulation sterilization system comprises a hot water outlet pipe (5), a flow meter (6), a first high-energy wave sterilization device (7), a one-way valve (8), a hot water return pipe (9), a first circulation pump (10), a second high-energy wave sterilization device (11), a water inlet valve (12), and a cold water inlet pipe (13). The water inlet end of the hot water tank (1) is connected to the cold water inlet pipe (13), the water inlet of the cold water inlet pipe (13) is provided with a water inlet valve (12), and the water outlet end of the hot water tank (1) is connected to the cold water inlet pipe (13). The water inlet end of the pipe (5) is connected to the flow meter (6) and the first high-energy wave sterilization device (7); the water inlet end of the one-way valve (8) is connected to the first high-energy wave sterilization device (7) through the water outlet end of the hot water outlet pipe (5); the water outlet end of the one-way valve (8) is connected to the first circulation pump (10) and the second high-energy wave sterilization device (11) through the water inlet end of the hot water return pipe (9); and the cold water inlet pipe (13) is connected to the second high-energy wave sterilization device (11) through the water outlet end of the hot water return pipe (9); The internal circulation sterilization system comprises a circulating hot water pipe (14), a second circulating pump (15), and a third high-energy wave sterilization device (16); the lower end of the outer wall of the hot water tank (1) is connected to the second circulating pump (15) and the third high-energy wave sterilization device (16) in sequence through the water inlet end of the circulating hot water pipe (14); and the upper end of the outer wall of the hot water tank (1) is connected to the third high-energy wave sterilization device (16) through the water outlet end of the circulating hot water pipe (14).

2. A public hot water system using high energy wave sterilization according to claim 1, characterized in that: The hot water outlet pipe (5) is connected to a plurality of independent user ends near the one-way valve (8); the hot water in the hot water tank (1) is sterilized by the first high-energy wave sterilization device (7) and then transported to the plurality of independent user ends through the hot water outlet pipe (5).

3. A public hot water system using high energy wave sterilization according to claim 2, characterized in that: The hot water tank (1) comprises a water level sensor (2), a temperature sensor (3) and a controller (4); the water level sensor (2) and the temperature sensor (3) are arranged inside the hot water tank (1); the water level sensor (2) is used to monitor the change of the water level in the hot water tank (1) in real time; the temperature sensor (3) is used to monitor the change of the temperature of the hot water in the hot water tank (1) in real time; the controller (4) is arranged on the outer wall of the hot water tank (1); the controller (4) is used to intelligently control the operating states of a first circulation pump (10), a second circulation pump (15), a first high-energy wave sterilization device (7), a second high-energy wave sterilization device (11), a third high-energy wave sterilization device (16), and a water inlet valve (12).

4. A public hot water system using high energy wave sterilization according to claim 3, characterized in that: The first high-energy wave sterilization device (7) comprises a first high-energy wave generator (7-1), a first high-energy wave transducer (7-2) and a first high-energy wave probe (7-3); the first high-energy wave generator (7-1) is arranged at the top of the first high-energy wave sterilization device (7); the first high-energy wave transducer (7-2) is arranged below the first high-energy wave generator (7-1); the first high-energy wave probe (7-3) is arranged below the first high-energy wave transducer (7-2); the first high-energy wave generator (7-1), the first high-energy wave transducer (7-2) and the first high-energy wave probe (7-3) are electrically connected in sequence through cables; the first high-energy wave generator (7-1) and the first high-energy wave transducer (7-2) are arranged outside the hot water outlet pipe (5); and the first high-energy wave probe (7-3) is arranged inside the hot water outlet pipe (5); The high-frequency electric signal generated by the first high-energy wave generator (7-1) is transmitted to the first high-energy wave transducer (7-2) for conversion via a cable; the first high-energy wave transducer (7-2) is used to convert the electric signal into sound waves; and the first high-energy wave probe (7-3) emits the sound wave signal generated by the first high-energy wave transducer (7-2) into a medium.

5. A public hot water system using high energy wave sterilization according to claim 4, characterized in that: The second high-energy wave sterilization device (11) comprises a second high-energy wave generator (11-1), a second high-energy wave transducer (11-2) and a second high-energy wave probe (11-3); the second high-energy wave generator (11-1) is arranged at the top of the second high-energy wave sterilization device (11); the second high-energy wave transducer (11-2) is arranged below the second high-energy wave generator (11-1); the second high-energy wave probe (11-3) is arranged below the second high-energy wave transducer (11-2); the second high-energy wave generator (11-1), the second high-energy wave transducer (11-2) and the second high-energy wave probe (11-3) are electrically connected in sequence through a cable; the second high-energy wave generator (11-1) and the second high-energy wave transducer (11-2) are arranged outside the hot water return pipe (9); and the second high-energy wave probe (11-3) is arranged inside the hot water return pipe (9); The high-frequency electric signal generated by the second high-energy wave generator (11-1) is transmitted to the second high-energy wave transducer (11-2) for conversion via a cable; the second high-energy wave transducer (11-2) is used to convert the electric signal into sound waves; and the second high-energy wave probe (11-3) emits the sound wave signal generated by the second high-energy wave transducer (11-2) into a medium.

6. A public hot water system using high energy wave sterilization according to claim 5, characterized in that: The third high-energy wave sterilization device (16) comprises a third high-energy wave generator (16-1), a third high-energy wave transducer (16-2) and a third high-energy wave probe (16-3); the third high-energy wave generator (16-1) is arranged at the top of the third high-energy wave sterilization device (16); the third high-energy wave transducer (16-2) is arranged below the third high-energy wave generator (16-1); the third high-energy wave probe (16-3) is arranged below the third high-energy wave transducer (16-2); the third high-energy wave generator (16-1), the third high-energy wave transducer (16-2) and the third high-energy wave probe (16-3) are electrically connected in sequence through cables; the third high-energy wave generator (16-1) and the third high-energy wave transducer (16-2) are arranged outside the circulating hot water pipe (14); and the third high-energy wave probe (16-3) is arranged inside the circulating hot water pipe (14); The high-frequency electric signal generated by the third high-energy wave generator (16-1) is transmitted to the third high-energy wave transducer (16-2) for conversion via a cable. The third high-energy wave transducer (16-2) is used to convert the electric signal into sound waves. The third high-energy wave probe (16-3) emits the sound wave signal generated by the third high-energy wave transducer (16-2) into the medium.

7. A public hot water system using high energy wave sterilization according to claim 6, characterized in that: The flow meter (6) is used to monitor the usage of hot water in the hot water outlet pipe (5) in real time.

8. A public hot water system using high energy wave sterilization according to claim 7, characterized in that: The high-energy wave frequencies emitted by the first high-energy wave probe (7-3), the second high-energy wave probe (11-3) and the third high-energy wave probe (16-3) are 20 to 30 kHz, and the energy density per unit area within a diameter of 20 cm is 500 to 600 W / CM. 2 .

9. A method for sterilizing a public hot water system using high energy wave sterilization, characterized in that: The following steps are involved: 1) When the flow meter (6) in the public hot water system detects that hot water is consumed in the hot water outlet pipe (5), the controller (4) controls the first high-energy wave sterilization device (7) to start and perform hot water sterilization; 2) When the flow meter (6) in the public hot water system does not detect that hot water is consumed in the hot water outlet pipe (5), the first high-energy wave sterilization device (7) is in a closed state; 3) When the flow meter (6) in the public hot water system does not detect any hot water consumption in the hot water outlet pipe (5) for more than 30 minutes, the controller (4) controls the first circulation pump (10), the first high-energy wave sterilization device (7), and the second high-energy wave sterilization device (11) to start, and the cooling water in the hot water outlet pipe (5) and the hot water return pipe (9) is refluxed into the hot water tank (1) to perform cooling water reflux sterilization. The flow rate of the first circulation pump (10) is 6 to 10 L / min, and the circulation time is 5 to 10 minutes; 4) When it is detected that the public hot water system does not consume hot water for more than 24 hours, the controller (4) controls the second circulation pump (15) and the third high-energy wave sterilization device (16) to start and perform internal circulation high-energy wave sterilization. The flow rate of the second circulation pump (15) is 6 to 10 L / min. After the hot water in the hot water tank (1) circulates for 2 cycles, the internal circulation sterilization system is turned off; 5) When the water level sensor (2) in the public hot water system detects that the water level in the hot water tank (1) is lower than the lowest water level line, the controller (4) controls the water inlet valve (12) to open, and when the water level in the hot water tank (1) reaches the set water level, the water inlet valve (12) is closed, and the internal circulation sterilization system is turned on. At the same time, the hot water in the hot water tank (1) is heated to the set temperature and maintained at a constant temperature. The flow rate of the second circulation pump (15) is 6 to 10 L / min. After the hot water in the hot water tank (1) circulates for one cycle, the internal circulation sterilization system is turned off.

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