Municipal watering cart water tank built-in disinfection device with reclaimed water as water source

Abstract

The utility model relates to a municipal watering cart water tank built-in disinfection device taking reclaimed water as a water source, a solar panel is arranged on the top surface of a water tank body, the disinfection device with a water inlet and a water outlet is arranged at the bottom end of a water storage cavity, and a titanium plate with a TiO2 nanotube array is arranged in a shell; the titanium plates are staggered to form a water flow gallery; the ultraviolet lamp strip corresponding to the titanium plate is arranged in the shell, and ultraviolet rays emitted by the ultraviolet lamp beads photocatalyze the TiO2 nanotube array on the titanium plate; the solar panel introduces electric energy into the ultraviolet lamp beads through wires to enable the ultraviolet lamp beads to emit ultraviolet rays. The titanium plate and the UV-LED lamp band are utilized in a limited manner, ultraviolet rays are emitted through the lamp beads on the UV-LED lamp band, various pathogens in reclaimed water are subjected to radiation damage, bonds in nucleic acid molecules are broken, chains are crosslinked, actinic products are formed, the biological activity of DNA is changed, the DNA cannot be copied, and the disinfection device has instantaneous and efficient disinfection capacity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to city environment with watering cart water field, concretely relates to municipal watering cart water tank built -in disinfection device of water source of recycled water. BACKGROUND

[0002] With the increasingly tense water resources, water resource conservation becomes an important issue of environmental protection;In the measures of saving water resources, after using the sewage (waste) water under certain conditions, it meets the water quality standard and requirement of certain use after treatment, becomes the recycled water that can be used again, and is also an important measure of saving water resources.

[0003] In recent years, with the vigorous promotion of recycled water, more and more cities begin to use recycled water (even tertiary sewage plant tail water) to replace tap water for watering municipal roads and green land, and air dust removal. Compared with the huge and widely distributed tap water distribution system, the recycled water (even tertiary sewage plant tail water) distribution system is usually quite limited in size, and the water intake points are mainly concentrated around the sewage plant or recycled water plant. Therefore, the watering cart will also bear the task of long-distance transportation of recycled water to ensure the completion of the road and green land watering in the entire city range, and the air dust removal in some key areas. But compared with the traditional tap water source, there are more impurities in the recycled water source, and the pathogenic bacteria species are also relatively complex, and long-distance transportation (shaking, high temperature) may cause rapid decay of residual chlorine in the effluent water, so that the bacteria and viruses in the original inhibition or dormant state are revived. Because a large amount of spray or aerosol is usually formed in the watering and dust removal process of the watering cart, the risk of pathogenic microorganisms in recycled water entering the human body through the air is increased.

[0004] How to disinfect and kill the recycled water transported in the municipal watering cart water tank for a long distance to kill and inhibit bacteria and prevent viruses from reviving is a technical problem to be solved for the municipal watering cart with recycled water as the water source. SUMMARY

[0005] In view of the above technical problems of the prior art, the utility model provides a municipal watering cart water tank built-in disinfection device with recycled water as the water source;The utility model adopts coupling type ultraviolet (UV) disinfection and photocatalytic titanium dioxide (TiO2) disinfection technology, which damages the nucleic acid of pathogen in water through the ultraviolet radiation emitted by the lamp bead, causes DNA inactivation, realizes instantaneous disinfection. At the same time, UV excites TiO2 nanotube array to produce reactive oxygen species (ROS), further oxidizes organic pollutants and kills microorganisms. In addition, in the circulating disinfection mode, ROS can also generate chlorine dioxide (ClO2) in situ from the residual disinfection by-product chlorite (ClO2⁻) in recycled water, improve the residual chlorine amount, and enhance the continuous disinfection effect of the system.

[0006] In order to solve the technical problem, the utility model adopts the following technical scheme:

[0007] The water tank built-in disinfection device of the municipal spraying vehicle with reclaimed water as the water source is arranged on the water tank body, and a relatively closed water storage cavity is formed in the water tank body; the water tank body is characterized in that a solar panel is arranged on the top surface of the water tank body, the disinfection device is arranged at the bottom end of the water storage cavity, and the disinfection device is a relatively closed shell, the shell is provided with a water inlet and a water outlet, a titanium plate is arranged in the cavity of the shell, TiO2 nanotube arrays with photocatalytic efficiency are generated in situ on the surface of the titanium plate, the titanium plates are staggered with each other and serve as flow guide plates to divide the interior of the disinfection device into a continuous and rotary water flow corridor, UV lamp strips are arranged in the shell, one UV lamp strip is arranged on each side of each titanium plate, and the UV light beads of the UV lamp strips emit UV light to catalyze the TiO2 nanotube arrays on the titanium plates, the solar panel is connected with the UV light beads through wires, and the UV light beads emit UV light by being supplied with electric energy.

[0008] In this way, the plug flow photocatalytic reactor composed of the titanium plates and the UV-LED lamp strips emits UV light through the light beads on the UV-LED lamp strips to cause radiation damage to various pathogens in the reclaimed water, causes bond rupture, inter-chain cross-linking and formation of photochemical products in nucleic acid molecules, changes the biological activity of DNA, causes the pathogens to be unable to replicate and even die, and enables the system to have instantaneous and efficient disinfection capacity; secondly, the TiO2 nanotube arrays are excited by UV to generate "electron-hole pairs" through photocatalysis, and a large amount of active oxygen species (ROS, such as hydroxyl radicals, superoxide radicals and singlet oxygen) are generated, and the ROS oxidize residual organic pollutants (such as POPs) in the reclaimed water and kill microorganisms;

[0009] to realize an efficient instant disinfection mode.

[0010] Further, the water outlet pipeline is connected with a spraying pipeline and a circulating pipeline through a three-way valve, a spraying pump is arranged on the spraying pipeline, the circulating pipeline is connected with the water storage cavity, and a circulating pump is arranged on the circulating pipeline, so that the water in the circulating pipeline is returned to the water storage cavity through the circulating pump, and a continuous and circulating disinfection mode is realized. The reclaimed water contains certain chlorine disinfection by-products (such as chlorite ClO2⁻), in the circulating disinfection mode, the ROS generated through photocatalysis can oxidize ClO2⁻ into ClO2, and the residual chlorine content in the reclaimed water is increased, so that the system has the capacity of continuous disinfection.

[0011] In this way, the utility model has two modes of instant disinfection and circulating disinfection, and solves the problems of residual chlorine decay and bacterial and viral revival of the reclaimed water in the long-distance transportation process. It can ensure that the disinfection effect of the reclaimed water is maintained during transportation and use, effectively reduces the risk of air transmission of pathogenic microorganisms, avoids the transmission of waterborne diseases, improves the safety of the reclaimed water, and ensures public health safety.

[0012] Further, the ultraviolet light band is arranged in the shell through the fixing plate. The connecting structure is more reliable, and the ultraviolet light band is conveniently arranged.

[0013] Further, one or more controllers are arranged and connected with the ultraviolet lamp beads, and the on-off light emission of the ultraviolet lamp beads is controlled by one controller; the externally arranged solar panel is connected with the controller through wires. The circuit control structure provided with the controller is more convenient for controlling the on-off light emission of the ultraviolet lamp beads.

[0014] Further, the ultraviolet light band, the controller and the ultraviolet lamp beads are arranged in the waterproof layer. The waterproof and anti-creeping effects are achieved.

[0015] Further, the disinfection device is arranged in a modular structure and is connected with the fixing support at the bottom of the water tank body through a connecting piece. The modular design concept of the utility model gives the device high flexibility and compatibility, allows various components to be independently installed and replaced according to actual requirements, and ensures that the device can be conveniently installed and maintained in different types and specifications of water spraying vehicles.

[0016] Further, a filter screen is arranged at the front end of the flowing water inlet.

[0017] Further, the water flow channel is formed by a water flow baffle arranged in the inner cavity of the shell, and the titanium plate is installed on the water flow baffle. The water flow channel with various structures and shapes is conveniently arranged, and the titanium plate is conveniently installed.

[0018] Compared with the prior art, the utility model discloses a municipal water spraying vehicle water tank built-in disinfection device with reclaimed water as a water source and has the following technical characteristics:

[0019] 1. The core innovation of the disinfection device is a self-constructed push-flow photocatalytic reactor composed of titanium plates and UV-LED lamp strips. The titanium plates generate TiO2 nanotube arrays in situ, combined with ultraviolet radiation and photocatalytic reaction, enhancing the degradation ability of organic pollutants in water and the inactivation effect of microorganisms. Compared with traditional TiO2 coating, TiO2 nanotube arrays have better mechanical stability and electron transport efficiency, significantly improving photocatalytic efficiency. Inside the device, the titanium plates are perpendicular to the bottom plate, dividing the device space into a rotary water flow corridor, ensuring that the water flow fully contacts the TiO2 nanotube arrays during disinfection, thereby improving disinfection effectiveness. At the same time, low-power UV-LED lamp strips are arranged along the direction of the water flow, using UV radiation to destroy the DNA of pathogenic microorganisms in water and generate reactive oxygen species (ROS) by exciting TiO2 nanotube arrays, further enhancing disinfection capacity. Secondly, during the cycle disinfection process, ROS can also convert chlorite (ClO2⁻) in reclaimed water to chlorine dioxide (ClO2), further increasing the residual chlorine amount and enhancing the continuous disinfection effect.

[0020] 2. The disinfection device uses both instant disinfection and cycle disinfection modes. In instant disinfection mode, reclaimed water is disinfected using ultraviolet light and photocatalytic disinfection by the disinfection device, suitable for fast and efficient disinfection requirements during spraying operations. In cycle disinfection mode, the disinfected water is re-injected into the water tank through the backflow water body, maintaining the continuous disinfection state of the water source. The dual-mode design allows the disinfection device to adapt to different work requirements and water quality changes, improving the adaptability and disinfection efficiency of the device, solving the problem of residual chlorine decay and bacterial virus revival during long-distance transportation of reclaimed water, effectively reducing the risk of airborne transmission of pathogenic microorganisms, avoiding the spread of waterborne diseases, and improving the safety of reclaimed water, ensuring public health safety.

[0021] 3. The disinfection device adopts a detachable and modular design, connected to the water tank bottom fixed support of the watering cart through a simple connection mechanism, ensuring stable installation. This modular design concept gives the device high flexibility and compatibility, allowing individual components to be installed and replaced independently according to actual needs, ensuring that the device can be easily installed and maintained in different types and specifications of watering carts, and can also meet different working environments and disinfection requirements.

[0022] 4. Considering the size difference of the partitions divided by the wave plates of different watering carts and the water quality fluctuations of the reclaimed water source, the disinfection device allows dynamic adjustment of the spacing of the titanium plates and optimal configuration of the number of titanium plates and UV-LED lamp strips, thereby adjusting the disinfection contact time of the water flow, to achieve efficient use of the internal space of the device and optimal disinfection effect.

[0023] 5. The disinfection device is powered by the solar cell panel on the roof, does not produce additional energy consumption, and realizes the green energy-saving operation mode. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front view of the disinfection device and the water tank mounting structure of the water spraying vehicle.

[0025] Figure 2 It is Figure 1 Internal structure section view;

[0026] Figure 3 It is a structural schematic view of the disinfection device (4) of the utility model.

[0027] Figure 4 It is a structural schematic view of the ultraviolet lamp strip (10) of the utility model.

[0028] Figure 5 It is a schematic diagram of the disinfection device used in the recycled water spraying vehicle pipeline connection.

[0029] In the figure: 1 - water tank body, 2 - water storage cavity, 3 - solar panel, 4 - disinfection device, 5 - wave board, 6 - shell, 7 - titanium plate, 8 - water flow corridor, 9 - fixed plate, 10 - ultraviolet lamp strip, 11 - controller, 12 - ultraviolet lamp bead, 13 - waterproof layer, 14 - water outlet pipeline, 15 - water spraying pipeline, 16 - circulating pipeline, 17 - water spraying pump, 18 - circulating pump, 19 - backflow port, 20 - manhole, 21 - liquid inlet, 22 - filter screen. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] Please refer to Figure 1 , 2 , 3, 4, the municipal water spraying vehicle water tank built-in disinfection device provided by the embodiments of the utility model takes recycled water as the water source, is matched with being arranged on the water tank body 1, the water tank body 1 is used as the tank body of the water storage of the water spraying vehicle, the inside is formed with the relatively closed water storage cavity 2, usually still is provided with the water inlet, the water outlet and the manhole 20, the water inlet, the water outlet are used to conveniently add water to the water storage cavity 2 and the water in the water storage cavity 2 flows outwards, and the water is discharged outward through the water outlet pipeline or is transported to the user; the manhole 20 is used for personnel access when overhauling.

[0032] The improvement of the utility model is that the solar panel 3 is arranged on the top surface of the water tank body 1, the solar panel 3 adopting the photovoltaic element converts the energy of the sunlight into the electric energy under the sunlight, the solar panel 3 is the prior art and will not be further introduced herein; the disinfection device 4 is arranged in the water storage cavity 2 and can disinfect the reclaimed water in the water storage cavity 2.

[0033] In order to improve the disinfection and treatment capacity of the disinfection device 4 on the reclaimed water, the wave separation plate 5 is arranged in the water storage cavity 2, the wave separation plate 5 divides the water storage cavity 2 into two or more cavities, and the through holes are arranged between the adjacent cavities to enable the water to flow;

[0034] The disinfection device 4 of the utility model is arranged at the bottom end of the water storage cavity 2, the outside is the relatively closed shell 6, the shell 6 is provided with the liquid inlet 21 and the water outlet, the front end of the liquid inlet 21 can be equipped with the filter screen 22 to intercept the suspended particles, solid impurities and the like in the reclaimed water, and the water outlet is connected with the water outlet pipeline 14; the titanium plate 7 is arranged in the inner cavity of the shell 6, the TiO2 nanotube array with the photocatalytic effect is generated in situ on the titanium plate 7; compared with the traditional TiO2 plating method, the TiO2 nanotube array generated in situ on the titanium plate substrate can make the TiO2 nanotube array and the substrate more firmly combined, the mechanical stability is better, the electron transmission efficiency is higher, and the photocatalytic effect is better. The titanium plates 7 are mutually staggered and serve as the flow guide plates to form the coherent rotary water flow corridor 8 to prolong the residence time of the water flow in the disinfection device 4; the ultraviolet lamp strip 10 is arranged in the shell 6, as shown in the figure, is arranged in the shell 6 through the fixing plate 9 and can be arranged at the position corresponding to the titanium plate 7, such as the water flow corridor 8, the ultraviolet lamp strip 10 is arranged corresponding to the titanium plate 7, such as one ultraviolet lamp strip 10 corresponding to each titanium plate 7 or two adjacent titanium plates 7, the ultraviolet light emitted by the ultraviolet lamp beads 12 on the ultraviolet lamp strip 10 corresponds to the TiO2 nanotube array on the titanium plate 7, irradiates the TiO2 nanotube array to generate the photocatalytic effect; one or more controllers 11 are connected with the ultraviolet lamp beads 12 and a plurality of ultraviolet lamp beads 12 are controlled to be powered on and emit light by one controller 11; the solar panel 3 arranged outside is connected with the controller 11 or the ultraviolet lamp beads 12 through the wire, the electric energy is input into the ultraviolet lamp beads 12 to make the ultraviolet lamp beads 12 emit the ultraviolet light to irradiate the TiO2 nanotube array. As the waterproof and anti-electric shock structure, the ultraviolet lamp strip 10, the controller 11 and the ultraviolet lamp beads 12 are arranged in the waterproof layer 13 and do not contact with the water flow.

[0035] The disinfection device 4 can be provided as a modular structure, is connected with the fixed support at the bottom of the water tank body 1, ensures that the device can be stably installed in the water tank, and resists external environmental interference. The modular design concept gives the device high flexibility and compatibility, allows each component to be independently installed and replaced according to actual needs, and ensures that the device can be conveniently installed and maintained in different types and specifications of water spraying vehicles. The wave separation plate 5 provided on the water spraying vehicle divides the water tank into multiple independent areas, the disinfection device formed by the disinfection device 4 can be accurately designed and customized according to the size and layout of each partition, and is arranged at the bottom of the water tank to optimize the space utilization.

[0036] The disinfection device 4 has two modes of instant disinfection and circulating disinfection. The regenerated water is filtered through the filter screen, enters the disinfection device through the water inlet, and flows along the continuous rotating water flow corridor 8. In the flowing process, ultraviolet rays and photocatalytic disinfection are used for sterilization and disinfection. The water treated by disinfection finally flows into the water pipe of the water outlet pipeline 14 from the water outlet of the water flow corridor 8. Part of the water flow enters the water spraying pipeline 15 and the water spraying pump 17 through the three-way pipe in the water outlet pipe, and sprays outward to realize the instant disinfection mode with high efficiency. The other part of the water flow enters the circulating pipeline and the circulating pump 18 along the three-way pipe, and then flows back to the water storage cavity 2 through the return port 19 along the pipeline, so as to be re-entered into the disinfection device in the next cycle, thereby realizing the continuous circulating disinfection mode.

[0037] The ultraviolet light beads on the UV-LED lamp strip emit ultraviolet rays, cause radiation damage to various pathogens in the regenerated water, cause the bond in the nucleic acid molecules to break, interchain crosslinking and formation of photochemical products, thereby changing the biological activity of DNA, making it unable to replicate or even die, and enabling the system to have instantaneous and efficient disinfection capacity. Secondly, the UV excites the TiO2 nanotube array to generate an "electron-hole pair" through photocatalysis, and then generates a large amount of active oxygen species (ROS, such as hydroxyl radicals, superoxide radicals, singlet oxygen, etc.), which oxidizes the residual organic pollutants (such as POPs) in the regenerated water and kills microorganisms. In addition, the regenerated water contains a certain amount of chlorine disinfection by-products (such as chlorite ClO2⁻), and in the circulating disinfection mode, the ROS generated by photocatalysis can oxidize ClO2⁻ into ClO2, thereby increasing the residual chlorine content in the regenerated water, and enabling the system to have the ability of continuous disinfection.

[0038] The municipal water sprinkling vehicle water tank built-in disinfection device with reclaimed water as water source provided by the embodiments of the present application is described in detail. The above embodiments are used to illustrate the technical solutions of the present application but not to limit the technical solutions. Although the applicant has described the present application in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and should be covered in the scope of the claims of the present application.

Claims

1. A municipal watering truck water tank with an in-tank disinfection device using reclaimed water as the water source, which is arranged on the water tank body (1) and forms a relatively closed water storage cavity (2) inside; characterized in that, The solar panel (3) is arranged on the top surface of the water tank body (1), the disinfection device (4) is arranged at the bottom end of the water storage cavity (2), the outer part is a relatively closed shell (6), the shell (6) is provided with a liquid inlet (21) and a water outlet, a titanium plate (7) is arranged in the inner cavity of the shell (6), the titanium plate (7) is provided with a TiO2 nanotube array with photocatalytic effect, the titanium plates (7) are staggered with each other to form a continuous rotary water flow corridor (8), the ultraviolet light belt (10) corresponding to the titanium plate (7) is arranged in the shell (6), the ultraviolet light beads (12) on the ultraviolet light belt (10) emit ultraviolet light to catalyze the TiO2 nanotube array on the titanium plate (7), the solar panel (3) is connected with the ultraviolet light beads (12) through wires, and the ultraviolet light beads (12) emit ultraviolet light by inputting electric energy, and the water outlet of the shell (6) is connected with a water outlet pipeline (14).

2. The water tank built-in disinfection device for a municipal water sprinkling vehicle using reclaimed water as a water source according to claim 1, characterized in that, The water outlet pipeline (14) is connected with a water spraying pipeline (15) and a circulation pipeline (16) through a three-way valve, a water spraying pump (17) is arranged on the water spraying pipeline (15), the circulation pipeline (16) is connected with the water storage cavity (2), and a circulation pump (18) is arranged on the circulation pipeline (16), and the water in the circulation pipeline (16) is returned to the water storage cavity (2) through the circulation pump (18).

3. The water tank built-in disinfection device for a municipal sprinkling vehicle using reclaimed water as a water source according to claim 1, characterized in that, The ultraviolet light belt (10) is arranged in the shell (6) through a fixing plate (9).

4. The water tank built-in disinfection device for a municipal water sprinkling vehicle using reclaimed water as a water source according to claim 3, characterized in that, One or more controllers (11) are connected with the ultraviolet light beads (12), and the controllers (11) control the power-on light emission of the ultraviolet light beads (12), the solar panel (3) is connected with the controllers (11) through wires.

5. The water tank built-in disinfecting device for a municipal water sprinkling vehicle using reclaimed water as a water source according to claim 4, characterized in that, The ultraviolet light belt (10), the controller (11) and the ultraviolet light bead (12) are arranged in a waterproof layer (13).

6. The water tank built-in disinfection device of a municipal sprinkling vehicle using reclaimed water as a water source according to any one of claims 1 to 5, characterized in that, The disinfection device (4) is arranged in a modular structure and connected with the fixing support at the bottom of the water tank body (1) through a connecting piece.

7. The water tank built-in disinfection device of a municipal sprinkling vehicle using reclaimed water as a water source according to any one of claims 1 to 5, characterized in that, The front end of the liquid inlet (21) is provided with a filter screen (22).

8. The water tank built-in disinfecting device for a municipal water sprinkling vehicle using reclaimed water as a water source according to claim 5, characterized in that, The water flow corridor (8) is formed by a water flow baffle arranged in the inner cavity of the shell (6), and the titanium plate (7) is mounted on the water flow baffle.

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