Efficient antibacterial secondary water supply tank based on composite wavelength ultraviolet LED

Abstract

The invention provides an efficient antibacterial secondary water supply tank based on a composite wavelength ultraviolet LED. The secondary water supply tank comprises a water tank body, a composite wavelength UV-LED module, a UV-LED control module, a water quality online monitoring module and a small solar photovoltaic power generation device. The secondary water supply tank is made of stainless steel, and the UV-LED module is arranged at the top of the secondary water supply tank; the composite wavelength UV-LED module adopts an ultraviolet light source with the wavelength of 250-280 nm, and is subjected to waterproof and moistureproof treatment, so that stable operation in the water tank is ensured, and various microorganisms are efficiently killed; the composite wavelength UV-LED module is provided with an intelligent control system, and a user can set the working mode of the UV-LED through custom programming; a solar photovoltaic power generation device is installed on the top of the water tank, and environment-friendly and continuous power supply is provided. Compared with the prior art, the system has the advantages of multi-wavelength ultraviolet composite regulation and control, user-defined programming control, energy conservation, environmental protection and the like, efficient and safe disinfection can be realized, and the water quality safety of the secondary water supply tank can be effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the field of secondary water supply quality safety assurance, and in particular to a secondary water supply tank that utilizes composite wavelength UV-LED technology to achieve efficient antibacterial properties. Background Art

[0002] Secondary water supply systems play a vital role, especially in high-rise buildings, areas far from water sources or areas with insufficient water pressure. However, secondary water supply tanks are usually in a semi-closed state, with slow water flow and long water quality renewal cycles. They are prone to exceeding the standards for chromaticity, turbidity, iron, manganese, ammonia nitrogen and microorganisms, causing deterioration of drinking water quality and public health risks. Therefore, ensuring the safety of secondary water quality and ensuring that users can obtain safe and healthy drinking water is an important issue that needs to be solved urgently.

[0003] Ultraviolet disinfection has the advantages of high disinfection efficiency, no need to use chemical agents, and no generation of disinfection by-products. In particular, it has a significant inactivation effect on chlorine-resistant pathogenic microorganisms such as Cryptosporidium and Giardia. The ultraviolet band can be divided into UV-A (315-400nm), UV-B (280-315nm) and UV-C (200-280nm) bands according to the wavelength. Ultraviolet sterilization is mainly achieved by damaging nucleic acids and inhibiting the transcription and replication of microbial DNA. Traditional ultraviolet light sources include low-pressure mercury lamps (LPUV) and medium-pressure mercury lamps (MPUV). However, such light sources have defects such as poor controllability, short service life, long stability time and easy scaling, and there is a safety hazard of mercury leakage. As an emerging ultraviolet light source, ultraviolet light-emitting diodes (UV-LEDs) can achieve flexible application of multiple wavelengths by adjusting the composition of semiconductor materials. UV-LEDs have the advantages of small size, high efficiency and long service life, and can provide more stable and efficient disinfection solutions in secondary water supply systems. Therefore, the development and application of composite wavelength UV-LED disinfection modules to effectively ensure the quality of secondary water supply has become an important direction of current technological development.

[0004] Furthermore, compared with authorized invention or utility model patents, such as "A closed sterile drinking water tank" (authorization announcement number CN 220598590 U), the present invention proposes to use composite wavelength UV-LED as the ultraviolet light source for water tank disinfection, which can effectively improve operating energy efficiency and safety, and has a higher level of intelligence. Summary of the invention

[0005] The purpose of the present invention is to provide a high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED, which can achieve spectral inactivation of microorganisms in secondary water supply tanks, thereby inhibiting the formation of biofilm in the water tank and ensuring the safety of secondary water supply water quality.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A high-efficiency antibacterial secondary water supply tank based on a composite wavelength ultraviolet LED, comprising a water tank body, a composite wavelength UV-LED module and a UV-LED control module;

[0008] The composite wavelength UV-LED module is arranged on the top of the water tank body and is used to perform antibacterial treatment on the water quality in the water tank body;

[0009] The composite wavelength UV-LED module includes a plurality of LED lamp beads and a light-transmitting cover plate; a plurality of LED lamp bead matrices are arranged on the transparent light plate and located on the top wall inside the water tank body, and the LED lamp beads are controlled to be turned on and off by the UV-LED control module; the LED lamp beads emit ultraviolet light beams through the light-transmitting cover plate to perform antibacterial treatment on the water quality in the water tank body.

[0010] Preferably, the transparent light plate is embedded in the top of the water tank body through a UV-LED heat sink; the UV-LED heat sink is made of aluminum alloy or copper heat sink, which has good thermal conductivity and can quickly dissipate the heat generated by the LED lamp beads when working to the external environment;

[0011] The heat dissipation device is in close contact with the composite wavelength UV-LED module and is provided with a multi-layer waterproof and dustproof coating, thereby ensuring the heat dissipation effect while avoiding the influence of moisture inside the water tank on the heat dissipation device.

[0012] Preferably, the composite wavelength UV-LED module adopts an ultraviolet light source with a wavelength of 250 to 280 nm, and is connected to a control module and a heat dissipation device to ensure efficient sterilization and stable operation.

[0013] Preferably, it also includes a water quality online monitoring module, which is arranged in the water tank body and includes a variety of water quality sensors, which are used to monitor the pH value, turbidity, temperature, residual chlorine and other parameters of the water body in the water tank in real time;

[0014] The water quality online monitoring module is connected to the UV-LED control module by telecommunications, and is used to collect water quality data in the water tank body in real time and transmit it to the UV-LED control module for analysis and judgment, and to control the LED lamp beads to automatically turn on and off or adjust the power of the lamp beads according to the preset water quality parameter threshold, and perform automatic adjustment to further ensure the water quality safety in the water tank.

[0015] Preferably, the UV-LED control module has a custom programming and control function, and flexibly controls the operation mode of the composite wavelength UV-LED module according to a schedule set by the user; at the same time, the UV-LED control module is connected to the water quality online monitoring module, and automatically adjusts the working state of the composite wavelength UV-LED module, including power and operating time, by receiving water quality data in real time.

[0016] Preferably, a solar photovoltaic power generation device is installed above the water tank body through a mounting frame, and electric energy is stored by a battery to provide the power required by the composite wavelength UV-LED module, UV-LED control module and water quality online monitoring module.

[0017] Preferably, the UV-LED control module has an abnormal situation alarm function, and can issue an alarm in time when the composite wavelength UV-LED module fails.

[0018] Preferably, the LED lamp beads use composite wavelength lamp beads with an emission wavelength of 250 to 280 nm, and the inactivation effect on microorganisms in water is enhanced by superimposing different wavelengths.

[0019] Preferably, the light-transmitting cover plate is made of plastic material with a light transmittance of 88% to 92%, and is used for waterproofing and moisture-proofing and protecting the LED lamp beads.

[0020] Preferably, the water tank body is made of high-strength 304 or 316 stainless steel with good corrosion resistance; the inner surface of the water tank body is polished to reduce the attachment of biofilm.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (I) The present invention achieves a broad-spectrum sterilization effect through a composite wavelength UV-LED module. The wavelength of 250-265nm can effectively destroy the DNA / RNA structure of microorganisms, while the wavelength of 265-280nm can further act on the protein level, effectively killing chlorine-resistant microorganisms and other thick-walled microorganisms (such as bacterial spores, fungal spores, etc.), thereby greatly improving the safety of water quality. Through the superposition of ultraviolet wavelengths, a broader spectrum of sterilization effects can be achieved, effectively killing bacteria, fungi, viruses and other pathogenic microorganisms in water, significantly improving the safety of water quality.

[0023] (ii) The present invention ensures water quality safety through the intelligent linkage of the online water quality monitoring module and the control module. The disinfection process can be optimized according to the real-time water quality changes, which not only improves the disinfection efficiency, but also effectively reduces the operating energy consumption and maintenance costs. At the same time, it can issue alarms in time for abnormal water quality and equipment failure, which helps to ensure water quality safety and stable equipment operation.

[0024] (III) The present invention realizes green energy utilization through a solar power supply device, provides an independent power supply for the UV-LED module and the control module, does not rely on external power, collects light energy through solar photovoltaic panels and stores it in batteries, realizes stable power supply to the UV-LED module and the control module, effectively reduces operating costs, and adapts to the installation and operation environment of the rooftop secondary water supply tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a high-efficiency antibacterial secondary water supply tank based on a composite wavelength ultraviolet LED provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the structure of the UV-LED module lamp beads arranged in a high-efficiency antibacterial secondary water supply tank based on a composite wavelength ultraviolet LED provided by an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the light beam structure of a UV-LED module in a high-efficiency antibacterial secondary water supply tank based on a composite wavelength ultraviolet LED provided by an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the superposition effect of 265nm and 280nm UV-LED peaks in a high-efficiency antibacterial secondary water supply tank based on a composite wavelength ultraviolet LED provided by an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of the effect of controlling microorganisms in a secondary water supply tank using a high-efficiency antibacterial method based on a composite wavelength ultraviolet LED is provided in an embodiment of the present invention.

[0030] Figure 6 A schematic diagram of the effect that the number of microorganisms in a water tank is significantly reduced under the continuous action of a UV-LED module provided in an embodiment of the present invention, and tends to be stable after the fifth day of continuous operation.

[0031] The numbers in the figure are as follows:

[0032] 1. Composite wavelength UV-LED module, 2. Water tank body, 3. UV-LED control module, 4. Water quality online monitoring module, 5. Solar photovoltaic power generation device, 6. UV-LED heat dissipation device, 7. Ultraviolet beam, 8. LED lamp beads, 9. Transparent cover. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0034] like Figures 1 to 4 As shown, a high-efficiency antibacterial secondary water supply tank based on a composite wavelength ultraviolet LED is provided in this embodiment, including a water tank body 2, a composite wavelength UV-LED module 1, a UV-LED control module 3 and a water quality online monitoring module 4.

[0035] In this embodiment, the water tank body 2 is made of high-strength 304 or 316 stainless steel with good corrosion resistance; the inner surface of the water tank body 2 is polished to reduce the attachment of microorganisms.

[0036] The composite wavelength UV-LED module 1 is arranged on the top of the water tank body 2, and is used for performing antibacterial treatment on the water quality in the water tank body 2; the composite wavelength UV-LED module 1 includes a plurality of LED lamp beads 8 and a transparent cover plate 9; a matrix of a plurality of LED lamp beads 8 is arranged on a transparent light plate 9 and is located on the top wall in the water tank body 2, and the LED lamp beads 8 are controlled to be turned on and off by the UV-LED control module 3; the ultraviolet light beam 7 emitted by the LED lamp beads 8 through the transparent cover plate 9 performs antibacterial treatment on the water quality in the water tank body 2.

[0037] The LED lamp beads 8 use a composite wavelength lamp bead with an emission wavelength of 250 to 280 nm, and the inactivation effect of microorganisms in the water stored in the water tank is enhanced by superimposing different wavelengths.

[0038] like Figures 3-4 As shown, taking the UV-LED module 1 with a composite wavelength of 265nm and 280nm as an example, the module is composed of UV-LED lamp beads 8 with wavelengths of 265nm and 280nm, which are staggered to ensure ultraviolet coverage inside the water tank. The layout distance between the lamp beads is precisely designed to form a uniform light density to ensure that all areas of the water body can be continuously irradiated by ultraviolet rays of different wavelengths. Through this layout method, the ultraviolet light beam forms a multi-level coverage effect inside the water tank, avoiding possible disinfection dead corners in the water tank.

[0039] like Figure 5 As shown in the figure, taking the superposition effect of 265nm and 280nm as an example, the dual destruction of microbial nucleic acid and protein can be achieved. The spectrum of ultraviolet light beams with wavelengths of 265nm and 280nm overlaps in water, and the sterilization effect is improved through the synergistic effect of different wavelengths on the microbial structure. The 265nm wavelength has a higher efficiency in destroying microbial genetic material, while the 280nm wavelength mainly acts on the protein level, enabling this system to effectively inactivate chlorine-resistant microorganisms.

[0040] Furthermore, in this embodiment, the UV-LED control module 3 has a custom programming control function. By flexibly controlling the operation mode of the composite wavelength UV-LED module 1 according to the schedule set by the user, a fixed on-off time period can be set. At the same time, the UV-LED control module 3 is connected to the online water quality monitoring module 4, and automatically controls according to the water quality data, so that the control module and the online water quality monitoring module are linked to automatically adjust the switch state, power and irradiation time of the UV-LED module. This module can greatly improve the intelligence level of the system and ensure the long-term stability of the water quality of the water tank.

[0041] The light-transmitting cover plate 9 is made of plastic material with a light transmittance of 88% to 92%, and is used for waterproofing and moisture-proofing and protecting the LED lamp beads 8. The transparent light plate 9 is embedded in the top of the water tank body 2 through the UV-LED heat sink 6; the UV-LED heat sink 6 is made of aluminum alloy or copper heat sink, which has good thermal conductivity and can quickly dissipate the heat generated by the LED lamp beads 8 when working to the external environment.

[0042] The heat sink 6 is in close contact with the composite wavelength UV-LED module 1 and is provided with a multi-layer waterproof and dustproof coating to ensure the heat dissipation effect while avoiding the influence of moisture inside the water tank on the heat sink.

[0043] The water quality online monitoring module 4 is arranged in the water tank body 2, and includes a variety of water quality sensors, which are used to monitor the pH value, turbidity, temperature, residual chlorine and other parameters of the water body in the water tank in real time;

[0044] The water quality online monitoring module 4 is connected to the UV-LED control module 3 by telecommunications, and is used to collect water quality data in the water tank body 2 in real time and transmit it to the UV-LED control module 3 for analysis and judgment, and control the LED lamp beads 8 to automatically turn on or adjust the power of the lamp beads according to the preset water quality parameter threshold, and perform automatic adjustment to further ensure the water quality safety in the water tank.

[0045] Furthermore, in this embodiment, a solar photovoltaic power generation device 5 is installed above the water tank body 2, and electric energy is stored in a battery to provide the power required by the composite wavelength UV-LED module 1, the UV-LED control module 3 and the water quality online monitoring module 4.

[0046] The UV-LED module and control module are powered by converting solar energy into electrical energy. This design reduces the system's dependence on the mains and provides sustainable green energy. The system is equipped with a battery that can provide continuous power supply on cloudy days or at night to ensure stable operation of the system around the clock. The UV-LED heat sink 6 is used in conjunction with the UV-LED module 1 to effectively control the temperature of the LED during operation. The heat sink adopts an efficient heat sink design and is connected to the module through thermal conductive materials to ensure the continuity and stability of the LED and extend the service life of the LED.

[0047] Furthermore, in this embodiment, the UV-LED control module 3 has an abnormal situation alarm function, and can issue an alarm in time when a failure occurs in the composite wavelength UV-LED module 1.

[0048] The working principle of the present invention is as follows:

[0049] The composite wavelength UV-LED module 1 is installed in the water tank body 2, and the uniform ultraviolet irradiation of the entire water body is achieved through the precise layout of the lamp beads. The UV-LED module adopts a composite wavelength design of 250-280nm, and the peak superposition effect improves the sterilization efficiency and ensures the broad-spectrum inactivation of microorganisms in the water tank. The online water quality monitoring module 4 is equipped with sensors inside the water tank, which can monitor water quality parameters such as pH, turbidity, temperature and residual chlorine in real time. This module can transmit the monitoring data to the UV-LED control module 3, so that the system can automatically adjust the opening and closing and power of the UV-LED module according to the water quality.

[0050] like Figure 2 As shown, the flowchart depicts the system architecture and workflow of a high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED. The solar photovoltaic power generation device 5 provides power for the system; the water quality online monitoring module 4 continuously detects the water quality data in the water tank, including pH, turbidity, temperature and residual chlorine, and feeds back the real-time monitoring results to the UV-LED control module 3. When the water quality shows a deterioration trend, the UV-LED control module activates the UV-LED module 3 for ultraviolet disinfection.

[0051] Comparative Example

[0052] After the actual secondary water supply tank was treated by adding 265nm and 280nm UV-LED modules, a secondary water supply tank of the same specification without UV-LED modules was used as a comparative example without using the present invention. Water samples were taken regularly every day under the same experimental environment to detect the total number of heterotrophic bacteria. Figure 6 As shown, under the continuous action of the UV-LED module, the number of microorganisms in the water tank is significantly reduced, and stabilized after the fifth day of continuous operation. This shows that under this condition, the microbial inhibition effect of the present invention on the water stored in the water tank is better than that of the comparative example without the present invention, and can maintain a stable sterilization effect during continuous operation to prevent microbial rebound, effectively solving the problem of microbial regeneration caused by the long water quality renewal cycle in traditional water tanks.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0055] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED, characterized in that: It comprises a water tank body (2), a composite wavelength UV-LED module (1) and a UV-LED control module (3); The composite wavelength UV-LED module (1) is arranged on the top of the water tank body (2) and is used to perform antibacterial treatment on the water in the water tank body (2); The composite wavelength UV-LED module (1) comprises a plurality of LED lamp beads (8) and a transparent cover plate (9); a matrix of the plurality of LED lamp beads (8) is arranged on the transparent light plate (9) and is located on the top wall of the water tank body (2); the LED lamp beads (8) are controlled to be turned on and off by the UV-LED control module (3); the LED lamp beads (8) emit ultraviolet light beams (7) through the transparent cover plate (9) to perform antibacterial treatment on the water quality in the water tank body (2).

2. According to claim 1, a high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED is characterized in that: The transparent light plate (9) is embedded in the top of the water tank body (2) through a UV-LED heat sink (6); the UV-LED heat sink (6) is made of an aluminum alloy or copper heat sink, has good thermal conductivity, and can quickly dissipate the heat generated by the LED lamp beads (8) when they are working to the external environment; The heat dissipation device (6) is in close contact with the composite wavelength UV-LED module (1) and is provided with a multi-layer waterproof and dustproof coating, thereby ensuring the heat dissipation effect while preventing the influence of moisture inside the water tank on the heat dissipation device.

3. According to claim 2, a high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED is characterized in that: The composite wavelength UV-LED module (1) adopts an ultraviolet light source with a wavelength of 250 to 280 nm, and is connected to a control module (3) and a heat dissipation device (6) to ensure efficient sterilization and stable operation.

4. According to claim 1, a high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED is characterized in that: It also includes an online water quality monitoring module (4), which is arranged in the water tank body (2) and includes a plurality of water quality sensors, which are respectively used to monitor parameters such as pH value, turbidity, temperature, residual chlorine, etc. of the water body in the water tank in real time; The water quality online monitoring module (4) is connected to the UV-LED control module (3) via telecommunication, and is used to collect water quality data in the water tank body (2) in real time and transmit the data to the UV-LED control module (3) for analysis and judgment, and to control the LED lamp beads (8) according to a preset water quality parameter threshold value to achieve automatic switching or control of the lamp bead power, thereby further ensuring the safety of water quality in the water tank.

5. According to claim 4, a high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED is characterized in that: The UV-LED control module (3) has a custom programming control function, and flexibly controls the operation mode of the composite wavelength UV-LED module (1) according to a schedule set by the user; At the same time, the UV-LED control module (3) is connected to the water quality online monitoring module (4) and automatically adjusts the working state of the composite wavelength UV-LED module (1), including power and operating time, by receiving water quality data in real time.

6. According to claim 4, a high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED is characterized in that: A solar photovoltaic power generation device (5) is mounted above the water tank body (2) and stores electric energy through a storage battery, which is used to provide the electric power required by the composite wavelength UV-LED module (1), the UV-LED control module (3) and the water quality online monitoring module (4).

7. According to claim 1, a high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED is characterized in that: The UV-LED control module (3) has an abnormal situation alarm function and can promptly issue an alarm when a failure occurs in the composite wavelength UV-LED module (1).

8. According to claim 1, a high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED is characterized in that: The LED lamp beads (8) use a lamp bead with an emission wavelength of 250 to 280 nm and a composite wavelength, and the inactivation effect on microorganisms in water is enhanced by superimposing different wavelengths.

9. According to claim 2, a high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED is characterized in that: The light-transmitting cover plate (9) is made of a plastic material with a light transmittance of 88% to 92%, and is used for waterproofing and moisture-proofing and protecting the LED lamp beads (8).

10. According to claim 2, a high-efficiency antibacterial secondary water supply tank based on composite wavelength ultraviolet LED is characterized in that: The water tank body (2) is made of high-strength 304 or 316 stainless steel and has good corrosion resistance; the inner surface of the water tank body (2) is polished to reduce the attachment of biofilm.

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