Water purification system of water purification vehicle and water purification vehicle

Abstract

The utility model relates to a kind of water purification system and water purification vehicle of water purification vehicle, including raw water tank, pretreatment filter mechanism, pretreatment filter mechanism is communicated with raw water tank by pipeline, pretreatment filter mechanism is used to preliminary filtration water source;Pretreatment booster pump, pretreatment booster pump is set on the pipeline between pretreatment filter mechanism and raw water tank;First ultraviolet sterilizer, first ultraviolet sterilizer is communicated with pretreatment filter mechanism by pipeline;Intermediate water tank, intermediate water tank is communicated with first ultraviolet sterilizer by pipeline;Precise filter, precise filter is communicated with first ultraviolet sterilizer by pipeline;Ultrafiltration booster pump, booster pump is set on the pipeline between precise filter and first ultraviolet sterilizer, ultrafiltration membrane group, ultrafiltration membrane group is communicated with precise filter by pipeline;Pure water tank, pure water tank is communicated with ultrafiltration membrane group by pipeline. Can have purification response various pollution degree's water source, ensure the safety and reliability of water quality after purification.

Description

Technical Field

[0001] This utility model relates to the technical field of water purification equipment, specifically to a water purification system and a water purification vehicle. Background Technology

[0002] Currently, urban waterworks are typically designed and constructed based on qualified or slightly polluted water sources, without fully considering the possibility of sudden pollution at the water source. However, industrial development has exacerbated water pollution, and human factors such as war can also damage water sources, making directly drinkable water increasingly scarce.

[0003] Natural disasters such as earthquakes, floods, and mudslides can severely damage urban water supply systems, leaving residents without access to clean water and easily triggering secondary disasters or public health crises.

[0004] Furthermore, in special scenarios such as field engineering operations and military operations, conventional water supply methods are difficult to cover, and the water sources obtained locally often do not meet drinking water standards.

[0005] Therefore, there is a need for equipment that can treat contaminated water sources on-site to solve and address drinking water problems in special scenarios such as sudden water pollution and field engineering operations and military operations. Utility Model Content

[0006] Therefore, there is a need to provide a water purification system and a water purification vehicle to solve the technical problems of drinking water in special scenarios such as sudden water source pollution and field engineering operations and military operations.

[0007] To achieve the above objectives, the inventor provides a water purification system for a water purification vehicle, comprising:

[0008] Raw water tank,

[0009] A pretreatment filtration mechanism is connected to the raw water tank via a pipeline, and the pretreatment filtration mechanism is used for preliminary filtration of the water source;

[0010] A pretreatment booster pump is installed on the pipeline between the pretreatment filtration mechanism and the raw water tank.

[0011] A first ultraviolet sterilizer is connected to the pretreatment filtration mechanism via a pipeline.

[0012] An intermediate water tank is connected to the first ultraviolet sterilizer via a pipeline.

[0013] A precision filter, wherein the precision filter is connected to the first ultraviolet sterilizer via a pipeline;

[0014] An ultrafiltration booster pump is installed in the pipeline between the precision filter and the first ultraviolet sterilizer.

[0015] An ultrafiltration membrane module, wherein the ultrafiltration membrane module is connected to the precision filter via a pipeline;

[0016] And a pure water tank, which is connected to the ultrafiltration membrane module via a pipeline.

[0017] As a preferred structure of this utility model, the water purification system also includes a seawater reverse osmosis membrane module and a two-stage booster pump;

[0018] The seawater reverse osmosis membrane module and the ultrafiltration membrane module are connected by pipelines;

[0019] The two-stage booster pump is installed on the pipeline between the seawater reverse osmosis membrane module and the ultrafiltration membrane module;

[0020] The seawater reverse osmosis membrane module is connected to the pure water tank via pipelines.

[0021] As a preferred structure of this utility model, the two-stage booster pump includes a seawater desalination water supply pump and a seawater desalination high-pressure pump, which are respectively arranged sequentially on the pipeline between the ultrafiltration membrane module and the seawater reverse osmosis membrane module.

[0022] As a preferred structure of this utility model, the water purification system further includes a sodium hypochlorite generator sterilizer, a circulation pipeline, and a circulation pump;

[0023] The sodium hypochlorite generator sterilizer is installed on the pipeline between the seawater reverse osmosis membrane module and the pure water tank;

[0024] One end of the circulation pipeline is connected to the sodium hypochlorite generator sterilizer, and the other end of the circulation pipeline is connected to the pure water tank. The circulation pump is installed on the circulation pipeline.

[0025] As a preferred structure of this utility model, the water purification system further includes a drinking water supply pump and a second ultraviolet sterilizer. The drinking water supply pump is connected to the pure water tank through a pipeline, and the second ultraviolet sterilizer is disposed on the pipeline between the drinking water supply pump and the pure water tank.

[0026] As a preferred embodiment of this invention, the water purification system further includes a heat exchanger and a heating mechanism.

[0027] The heat exchanger is connected to the ultrafiltration booster pump via a pipeline, the heat exchanger is connected to the precision filter via a pipeline, and the heating mechanism is connected to the heat exchanger via a pipeline. The heating mechanism is used to provide a heat source to the heat exchanger.

[0028] A first control switch is provided on the pipeline between the heat exchanger and the ultrafiltration booster pump, and a second control switch is provided on the pipeline between the ultrafiltration booster pump and the precision filter.

[0029] As a preferred structure of this utility model, the water purification system further includes a temperature detection mechanism and a control mechanism;

[0030] The temperature detection mechanism is installed inside the raw water tank and is used to detect the water temperature inside the raw water tank.

[0031] The temperature detection mechanism is electrically connected to the control mechanism, the heating mechanism is electrically connected to the control mechanism, the first control switch is electrically connected to the control mechanism, and the second control switch is electrically connected to the control mechanism. The control mechanism is used to receive and process the signals sent by the temperature detection mechanism, and to control the heating mechanism, the first control switch, and the second control switch to open or close.

[0032] As a preferred structure of this utility model, the pretreatment filtration mechanism includes a titanium rod filter, a quartz sand filter, and an activated carbon filter, wherein the titanium rod filter, the quartz sand filter, and the activated carbon filter are sequentially arranged on the pipeline between the pretreatment booster pump and the first ultraviolet sterilizer.

[0033] As a preferred structure of this utility model, the water purification system further includes a pretreatment backwash pump, which is connected to the intermediate water tank through a pipeline, and is also connected to the titanium rod filter and the quartz sand filter through pipelines respectively.

[0034] As a preferred structure of this utility model, the water purification system further includes a cleaning pump and a membrane cleaning filter. The cleaning pump is connected to the pure water tank through a pipeline, the membrane cleaning filter is connected to the cleaning pump through a pipeline, and the membrane cleaning filter is connected to the ultrafiltration membrane module and the seawater reverse osmosis membrane module through pipelines respectively.

[0035] As a preferred embodiment of this invention, the water purification system further includes a submersible pump and an automatic cleaning filter. The submersible pump is connected to the raw water tank via a pipeline, and the automatic cleaning filter is installed on the pipeline between the submersible pump and the raw water tank.

[0036] As a preferred structure of this utility model, the water purification system further includes a domestic water supply pump, which is connected to the intermediate water tank through a pipeline.

[0037] As a preferred structure of this utility model, the water purification system further includes a microbial detection mechanism, a control mechanism, and an alarm mechanism;

[0038] The microbial detection mechanism is installed inside the pure water tank and is electrically connected to the control mechanism. The microbial detection mechanism is used to detect the number of microorganisms in the pure water tank.

[0039] The alarm mechanism is electrically connected to the control mechanism. The alarm mechanism is used to issue an alarm, and the control mechanism is used to receive and process the detection signal from the detection mechanism and control the start and stop of the alarm mechanism.

[0040] The advantages of the above technical solution, unlike existing technologies, are as follows: The water purification system of this utility model's water purification vehicle draws the water source to be treated into the raw water tank, starts the pretreatment booster pump, and then performs preliminary filtration through the pretreatment filtration mechanism. The pretreatment filtration mechanism gradually removes large, medium, and small particulate impurities, as well as organic matter and odors from the water. The pretreated water then enters the first ultraviolet sterilizer for preliminary sterilization under ultraviolet light. Part of the sterilized water enters the intermediate water tank as a source of domestic water, while the other part enters the precision filter under the action of the ultrafiltration booster pump to remove small suspended particles and colloids. The precision-filtered water then enters the ultrafiltration membrane module. Under pressure, water and small molecules permeate through the ultrafiltration membrane, while colloids and large organic molecules are retained. The resulting purified water enters the pure water tank. The entire purification process can purify water sources with various levels of pollution, ensuring the safety and reliability of the purified water for human use and drinking. In emergency situations such as natural disasters and sudden water pollution, the water purification system of the water purification vehicle provides clean water to the affected people or affected areas, effectively alleviating the pressure of emergency water supply and reducing the risk of secondary disasters and public health crises caused by water shortages.

[0041] To achieve the above objectives, the inventors also provide a water purification vehicle, including a carriage and

[0042] The water purification system described in any of the above inventors

[0043] The water purification system is installed inside the carriage.

[0044] The advantages of the above technical solution, compared with existing technologies, are as follows: The water purification vehicle of this utility model, in its water purification system, draws the water source to be treated into the raw water tank, starts the pretreatment booster pump, and then performs preliminary filtration on the water source through the pretreatment filtration mechanism. The pretreatment filtration mechanism gradually removes large particulate impurities, medium particulate impurities, small particles, organic matter, odors, etc., from the water. The pretreated water then enters the first ultraviolet sterilizer for preliminary sterilization under the action of ultraviolet light. Part of the sterilized water enters the intermediate water tank as a source of domestic water, while the other part enters the precision filter under the action of the ultrafiltration booster pump to remove small suspended particles, colloids, etc. The precision-filtered water enters the ultrafiltration membrane module. Under pressure, water and small molecules permeate through the ultrafiltration membrane, while colloids, large organic molecules, etc., are retained. The resulting purified water enters the pure water tank. The entire purification process can purify water sources with various levels of pollution, ensuring the safety and reliability of the purified water for human use and drinking. In emergencies such as natural disasters and sudden water pollution, the water purification system of the mobile water purification vehicle provides clean water to affected people or areas, effectively alleviating emergency water supply pressure and reducing the risk of secondary disasters and public health crises caused by water shortages. The water purification system is integrated into the vehicle's interior, forming a mobile water purification system with excellent mobility. In emergencies such as natural disasters and sudden water pollution, it can be quickly transported to the scene and rapidly carry out water purification operations, providing clean water to affected people or areas, effectively alleviating emergency water supply pressure and reducing the risk of secondary disasters and public health crises caused by water shortages.

[0045] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0046] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0047] In the accompanying drawings of the instruction manual:

[0048] Figure 1 This is one of the flowcharts of the water purification system of the water purification vehicle described in the specific implementation method;

[0049] Figure 2 The second schematic diagram of the water purification system of the water purification vehicle described in the specific implementation method;

[0050] Figure 3 The third schematic diagram of the water purification system of the water purification vehicle described in the specific implementation method;

[0051] Figure 4 This is one of the circuit connection diagrams of the water purification system of the water purification vehicle described in the specific implementation method;

[0052] Figure 5 The second circuit connection diagram of the water purification system of the water purification vehicle described in the specific implementation method is shown below.

[0053] The reference numerals used in the above figures are explained as follows:

[0054] 1. Raw water tank,

[0055] 2. Pretreatment booster pump,

[0056] 3. Titanium rod filter,

[0057] 4. Quartz sand filter,

[0058] 5. Activated carbon filter,

[0059] 6. First ultraviolet sterilizer,

[0060] 7. Intermediate water tank,

[0061] 8. Precision filter,

[0062] 9. Ultrafiltration booster pump,

[0063] 10. Ultrafiltration membrane module

[0064] 11. Two-stage booster pump; 111. Seawater desalination water supply pump; 1112. Seawater desalination high-pressure pump.

[0065] 12. Seawater reverse osmosis membrane module

[0066] 13. Sodium hypochlorite generator sterilizer; 131. Circulation pump; 132. Circulation pipeline.

[0067] 14. Pure water tank,

[0068] 15. Second ultraviolet sterilizer,

[0069] 16. Drinking water supply pump

[0070] 17. Heat exchanger; 171. First control switch; 172. Second control switch.

[0071] 18. Heating mechanism,

[0072] 19. Pretreatment backwash pump,

[0073] 20. Cleaning pump

[0074] 21. Membrane cleaning filter,

[0075] 22. Domestic water supply pump,

[0076] 23. Submersible pump

[0077] 24. Automatic filter cleaning.

[0078] 25. Temperature detection agency

[0079] 26. Microbiological testing institutions

[0080] 27. Control mechanism,

[0081] 28. Alarm system. Detailed Implementation

[0082] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0083] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0084] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0085] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0086] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0087] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0088] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0089] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. These expressions are only for the convenience of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. Furthermore, in this context, it should be understood that when it is mentioned that an element is connected "on" or "below" another element, it can be directly connected not only to the other element "on" or "below," but also indirectly connected to the other element "on" or "below" through an intermediate element.

[0090] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0091] Please see Figures 1 to 5This embodiment relates to a water purification system for a water purification vehicle, comprising:

[0092] Raw water tank 1 is a container used to store water sources to be treated. It is used to temporarily store various water sources obtained from the outside, such as polluted surface water, groundwater, river water, seawater, etc. Raw water tank 1 provides the water source to be treated for the entire water purification system. By setting an appropriate volume, it can meet the continuous treatment needs for a certain period of time. The water source for raw water tank 1 is: water is supplied to raw water tank 1 by starting submersible pump 23 (or water supply truck).

[0093] The pretreatment filtration mechanism is connected to the raw water tank 1 through a pipeline. The pretreatment filtration mechanism is used for preliminary filtration of the water source. The pretreatment filtration mechanism effectively removes various impurities and pollutants from the water, reduces the burden on subsequent treatment processes, improves the treatment efficiency and effect of the entire water purification system, and protects subsequent equipment such as the precision filter 8 and ultrafiltration membrane module 10, extending their service life.

[0094] A pretreatment booster pump 2 is installed on the pipeline between the pretreatment filtration mechanism and the raw water tank 1. The pretreatment booster pump 2 is a pump body used to increase the water flow pressure. The pretreatment booster pump 2 adopts a booster pump structure to provide sufficient pressure for the water flow from the raw water tank 1 to the pretreatment filtration mechanism, so that the water flow can pass through the pretreatment filtration mechanism smoothly, ensuring the smooth progress of the filtration process and avoiding poor filtration effect or filtration interruption due to insufficient water pressure.

[0095] The first ultraviolet sterilizer 6 is connected to the pretreatment filtration mechanism via pipeline. The first ultraviolet sterilizer 6 is a device that uses ultraviolet light to sterilize the pretreated and filtered water. It mainly consists of ultraviolet lamps and sleeves. The first ultraviolet sterilizer 6 uses ultraviolet light emitted from the ultraviolet lamps to destroy the DNA structure of bacteria, viruses, and other microorganisms in the water, rendering them unable to reproduce and achieving sterilization. The first ultraviolet sterilizer 6 performs preliminary sterilization on the pretreated water, reducing the number of microorganisms in the water, providing a cleaner water source for subsequent treatment processes, and reducing the difficulty and cost of subsequent disinfection.

[0096] An intermediate water tank 7 is connected to the first ultraviolet sterilizer 6 via a pipeline. The intermediate water tank 7 is a container structure with a certain volume, made of corrosion-resistant material. The intermediate water tank 7 temporarily stores water that has undergone pre-treatment filtration and the first ultraviolet sterilization treatment, serving as a buffer and regulator to coordinate the water volume balance between the pre- and post-treatment processes. This avoids problems such as water flow interruption or equipment overload caused by inconsistent processing speeds between the pre- and post-treatment processes, ensuring the stable operation of the entire water purification system, and also providing a water source for domestic water supply.

[0097] A precision filter 8 is connected to the first ultraviolet sterilizer 6 via a pipeline. The precision filter 8 is a device that performs further fine filtration on the water flow after the first ultraviolet sterilization. The precision filter 8 contains a high-precision filter membrane or filter element, such as a microporous filter membrane. The precision filter 8 removes residual tiny suspended particles and colloids from the water, further purifying the water and improving its cleanliness. This provides higher-quality feed water for the subsequent ultrafiltration membrane module 10, protects the ultrafiltration membrane module 10 from clogging by tiny particles, and extends its service life.

[0098] An ultrafiltration booster pump 9 is installed in the pipeline between the precision filter 8 and the first ultraviolet sterilizer 6. The ultrafiltration booster pump 9 is used to increase the pressure of the water flowing towards the ultrafiltration membrane module 10. The ultrafiltration booster pump 9 provides sufficient pressure to the precision-filtered water flow, allowing it to pass smoothly through the ultrafiltration membrane module 10, ensuring the effective filtration process of the ultrafiltration membrane module 10, ensuring the water flow can overcome the resistance of the ultrafiltration membrane module 10, improving the filtration efficiency and effect of the ultrafiltration membrane module 10, and effectively removing colloids, large molecular organic matter, etc., from the water.

[0099] An ultrafiltration membrane module 10 is connected to the precision filter 8 via a pipeline. The ultrafiltration membrane module 10 is composed of multiple ultrafiltration membrane elements and is used for deep filtration of water flow. The ultrafiltration membrane has a microporous structure, capable of retaining colloids, proteins, microorganisms, and large organic molecules in the water. Filtration is achieved through the pressure difference across the membrane; water and small molecules can permeate through the membrane, while large molecules and particulate matter are retained. The ultrafiltration membrane module 10 deeply purifies the water flow, removing various pollutants and significantly improving water quality, bringing it close to drinking water standards, thus laying the foundation for further treatment or direct use.

[0100] The system includes a pure water tank 14, which is connected to the ultrafiltration membrane module 10 via pipeline. The pure water tank 14 is used to store water that has been treated by the ultrafiltration membrane module 10 and / or the seawater reverse osmosis membrane module 12, meeting drinking water standards. The pure water tank 14 is made of clean, corrosion-resistant materials and has excellent sealing performance. The pure water tank 14 ensures that the purified drinking water is properly stored, preventing secondary pollution and providing users with a safe and convenient drinking water source.

[0101] Specifically, in this embodiment, the water purification system of the water purification vehicle draws the water source to be treated into the raw water tank 1, starts the pretreatment booster pump 2, and then performs preliminary filtration on the water source through the pretreatment filtration mechanism. The pretreatment filtration mechanism gradually removes large particulate impurities, medium particulate impurities, small particles, organic matter, odors, etc., from the water. The pretreated water enters the first ultraviolet sterilizer 6, where it undergoes preliminary sterilization under the action of ultraviolet light. Part of the sterilized water enters the intermediate water tank 7 as the source of domestic water, while the other part enters the precision filter 8 under the action of the ultrafiltration booster pump 9 to remove small suspended particles, colloids, etc. The water after precision filtration enters the ultrafiltration membrane module 10. Under pressure, water and small molecules pass through the ultrafiltration membrane, while colloids, large molecular organic matter, etc., are retained. The resulting purified water enters the pure water tank 14. The entire purification process can purify water sources with various levels of pollution, ensuring the safety and reliability of the purified water for people to use and drink. In emergency situations such as natural disasters and sudden water pollution, the water purification system of the water purification vehicle provides clean water to the affected people or affected areas, effectively alleviating the pressure of emergency water supply and reducing the risk of secondary disasters and public health crises caused by water shortages.

[0102] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the water purification system also includes a seawater reverse osmosis membrane module 12 and a two-stage booster pump 11. The seawater reverse osmosis membrane module 12 is connected to the ultrafiltration membrane module 10 via pipelines. The two-stage booster pump 11 is installed on the pipeline between the seawater reverse osmosis membrane module 12 and the ultrafiltration membrane module 10. The seawater reverse osmosis membrane module 12 is connected to the pure water tank 14 via pipelines. The seawater reverse osmosis membrane module 12 is a device used for desalination of water sources with high salinity, such as seawater. Its working principle is that under high pressure, water molecules permeate through the reverse osmosis membrane, while salt ions are retained, thereby achieving seawater desalination. The seawater reverse osmosis membrane module 12 can convert seawater and other water sources with high salinity into freshwater that meets drinking water standards, expanding the applicability of the water purification system and enabling water purification vehicles to provide drinking water even in special scenarios such as at the seaside. The two-stage booster pump 11 provides suitable working pressure to the seawater reverse osmosis membrane module 12 through two-stage pressurization, ensuring the efficiency and effect of seawater desalination and improving the success rate of converting seawater into freshwater.

[0103] Specifically, in this embodiment, such as Figures 1 to 5As shown, the two-stage booster pump 11 includes a seawater desalination supply pump 111 and a seawater desalination high-pressure pump 1112. The seawater desalination supply pump 111 and the seawater desalination high-pressure pump 1112 are sequentially installed on the pipeline between the ultrafiltration membrane module 10 and the seawater reverse osmosis membrane module 12. The seawater desalination supply pump 111 provides initial pressure to the seawater reverse osmosis membrane module 12, delivering water to the seawater desalination high-pressure pump 1112. The seawater desalination high-pressure pump 1112 provides higher pressure to meet the working pressure requirements of the seawater reverse osmosis membrane module 12. Through two-stage boosting, a suitable working pressure is provided to the seawater reverse osmosis membrane module 12, ensuring the efficiency and effectiveness of seawater desalination and improving the success rate of seawater conversion to fresh water.

[0104] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the water purification system also includes a sodium hypochlorite generator sterilizer 13, a circulation pipeline 132, and a circulation pump 131. The sodium hypochlorite generator sterilizer 13 is installed on the pipeline between the seawater reverse osmosis membrane module 12 and the pure water tank 14. The sodium hypochlorite generator sterilizer 13 is a device capable of generating sodium hypochlorite for chemical disinfection of the water flow. The sodium hypochlorite generator sterilizer 13 mainly consists of an electrolytic cell and electrodes, generating sodium hypochlorite through the electrolysis of brine. Sodium hypochlorite has strong oxidizing properties and can kill bacteria, viruses, and other microorganisms in the water. This chemical disinfection method complements ultraviolet sterilization, further enhancing the disinfection effect and ensuring that microorganisms in the water are completely killed, thus improving the safety of drinking water. Furthermore, one end of the circulation pipeline 132 is connected to the sodium hypochlorite generator sterilizer 13, and the other end is connected to the pure water tank 14. The circulation pump 131 is installed on the circulation pipeline 132. When the circulation pump 131 is working, the water that has been treated by the sodium hypochlorite generator sterilizer 13 flows through the circulation pipeline 132 between the sodium hypochlorite generator sterilizer 13 and the pure water tank 14, ensuring that the sodium hypochlorite is evenly distributed in the water, improving the uniformity and stability of the disinfection effect, and ensuring that the drinking water in the pure water tank 14 is fully disinfected.

[0105] Optionally, in some embodiments, such as Figures 1 to 5As shown, the water purification system also includes a drinking water supply pump 16 and a second ultraviolet sterilizer 15. The drinking water supply pump 16 is connected to the pure water tank 14 via a pipeline, and the second ultraviolet sterilizer 15 is installed on the pipeline between the drinking water supply pump 16 and the pure water tank 14. The drinking water supply pump 16 is a pump used to transport drinking water from the pure water tank 14 to the outside; the second ultraviolet sterilizer 15 is a device installed on the pipeline between the drinking water supply pump 16 and the pure water tank 14 to perform ultraviolet sterilization on the output drinking water again. The structure and working principle of the second ultraviolet sterilizer 15 are similar to those of the first ultraviolet sterilizer 6. The drinking water supply pump 16 facilitates the transportation of drinking water from the pure water tank 14 to the user's point of use; the second ultraviolet sterilizer 15 further sterilizes the output drinking water, ensuring the safety of drinking water and preventing secondary pollution that may occur during transportation. When drinking water is needed, the drinking water supply pump 16 is turned on. The water in the pure water tank 14 is sterilized again by the second ultraviolet sterilizer 15 and then transported to the drinking water use point by the drinking water supply pump 16.

[0106] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the water purification system also includes a heat exchanger 17 and a heating mechanism 18. The heat exchanger 17 is connected to the ultrafiltration booster pump 9 via pipelines, and to the precision filter 8 via pipelines. The heating mechanism 18 is connected to the heat exchanger 17 via pipelines, and provides a heat source to the heat exchanger 17. Water flows within the heat exchanger 17 and exchanges heat with the heat source provided by the heating mechanism 18, thereby regulating the water temperature. The heating mechanism 18 is a miniature boiler that provides heat to the heat exchanger 17 via pipelines. Furthermore, a first control switch 171 is provided on the pipeline between the heat exchanger 17 and the ultrafiltration booster pump 9, and a second control switch 172 is provided on the pipeline between the ultrafiltration booster pump 9 and the precision filter. The system allows for selection of whether to activate the heat exchanger 17 and the heating mechanism 18 based on the water temperature. If the water temperature is low, turn off the second control switch 172 and turn on the first control switch 171 and the heating mechanism 18. The water flows through the heat exchanger 17 and is heated before entering the precision filter 8. If the water temperature is suitable, turn off the first control switch 171 and turn on the second control switch 172. The water flows directly into the precision filter 8.

[0107] Optionally, in some embodiments, such as Figures 1 to 5As shown, the water purification system also includes a temperature detection mechanism 25 and a control mechanism 27. The temperature detection mechanism 25 is installed inside the raw water tank 1 and is used to detect the water temperature inside the raw water tank 1 to prevent the water source from freezing in low winter temperatures. In this embodiment, the temperature detection mechanism 25 is a temperature sensor. The temperature detection mechanism 25 is electrically connected to the control mechanism 27, the heating mechanism 18 is electrically connected to the control mechanism 27, the first control switch 171 is electrically connected to the control mechanism 27, and the second control switch 172 is electrically connected to the control mechanism 27. The control mechanism 27 is used to receive and process the signal emitted by the temperature detection mechanism 25 and control the opening or closing of the heating mechanism 18, the first control switch 171, and the second control switch 172. The heating mechanism 18 delivers heat to the heat exchanger 17, which exchanges heat with the water source non-contactly to increase the water source temperature and ensure that water purification operations can be performed in low-temperature environments during cold winters. The control mechanism 27 includes a PLC controller, a display screen, and an operation panel, with the display screen and operation panel electrically connected to the PLC controller.

[0108] Specifically, in this embodiment, such as Figures 1 to 5 As shown, during low-temperature operation in cold winter, the temperature detection mechanism 25 monitors the water temperature in the raw water tank 1 in real time. When the temperature detection mechanism 25 detects that the water temperature is below 5℃, it sends a signal to the control mechanism 27. After receiving the signal and processing it, the control mechanism 27 controls the second control switch 172 to close and the first control switch 171 and the heating mechanism 18 to open. The heating mechanism 18 heats the water and delivers the heat source to the heat exchanger 17. The heat exchanger 17 exchanges heat with the water source in a non-contact manner to increase the water source temperature and ensure that water purification operations can be carried out in the low-temperature environment of cold winter.

[0109] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the pretreatment filtration mechanism includes a titanium rod filter 3, a quartz sand filter 4, and an activated carbon filter 5. These filters are sequentially arranged in the pipeline between the pretreatment booster pump 2 and the first ultraviolet sterilizer. The titanium rod filter 3 uses titanium rods as the filter medium to remove larger particles of impurities from the water; the quartz sand filter 4 uses quartz sand as the filter media to further remove suspended particles, silt, etc.; and the activated carbon filter 5 utilizes the adsorption properties of activated carbon to adsorb organic matter, odors, pigments, etc., from the water. Through multi-stage filtration, various impurities and pollutants in the water are effectively removed, reducing the burden on subsequent treatment processes, improving the overall efficiency and effectiveness of the water purification system, and protecting subsequent equipment such as the precision filter 8 and ultrafiltration membrane module 10, extending their service life.

[0110] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the water purification system also includes a pretreatment backwash pump 19, which is connected to the intermediate water tank 7 via a pipeline. The pretreatment backwash pump 19 is also connected to the titanium rod filter 3 and the quartz sand filter 4 via pipelines. The pretreatment backwash pump 19 is used to backwash the pretreatment filtration mechanism. During operation, water from the intermediate water tank 7 is pumped through the pretreatment backwash pump 19 to the titanium rod filter 3 and the quartz sand filter 4, backwashing the filter media and removing impurities trapped on them. This effectively removes impurities from the filter media of the pretreatment filtration mechanism, restores its filtration performance, extends the service life of the filter media, and reduces equipment maintenance costs and replacement frequency.

[0111] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the water purification system also includes a cleaning pump 20 and a membrane cleaning filter 21. The cleaning pump 20 is connected to the pure water tank 14 via a pipeline, and the membrane cleaning filter 21 is connected to the cleaning pump 20 via a pipeline. The membrane cleaning filter 21 is also connected to the ultrafiltration membrane module 10 and the seawater reverse osmosis membrane module 12 via pipelines. The cleaning pump 20 is a pump used to clean the ultrafiltration membrane module 10 and the seawater reverse osmosis membrane module 12; the membrane cleaning filter 21 is a device for filtering the cleaning solution. During operation, the cleaning pump 20 delivers water or cleaning solution from the pure water tank 14 to the membrane cleaning filter 21. The filtered cleaning solution then enters the ultrafiltration membrane module 10 and the seawater reverse osmosis membrane module 12 for cleaning, thereby effectively removing contaminants from the ultrafiltration membrane module 10 and the seawater reverse osmosis membrane module 12, restoring the filtration performance of the membranes, extending the service life of the ultrafiltration membrane module 10 and the seawater reverse osmosis membrane module 12, ensuring the filtration efficiency and effect of the ultrafiltration membrane module 10 and the seawater reverse osmosis membrane module 12, and improving the reliability and stability of the entire water purification system.

[0112] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the water purification system also includes a submersible pump 23 and an automatic cleaning filter 24. The submersible pump 23 is connected to the raw water tank 1 via a pipeline. The submersible pump 23 transports external water to the raw water tank 1 for storage. The automatic cleaning filter 24 is installed on the pipeline between the submersible pump 23 and the raw water tank 1. The automatic cleaning filter 24 performs preliminary filtration on the water pumped by the submersible pump 23, thus purifying the water. In other embodiments, a water supply truck can also be used to directly supply water to the raw water tank 1.

[0113] Optionally, in some embodiments, such as Figures 1 to 5As shown, the water purification system also includes a domestic water supply pump 22, which is connected to the intermediate water tank 7 via a pipeline. The domestic water supply pump 22 is used to transport water from the intermediate water tank 7 for domestic use. The domestic water supply pump 22 delivers pre-treated water to places where domestic water is needed, such as for washing and cleaning, thus achieving differentiated water supply. Pre-treated water is used for domestic use, while deeply treated water is used for drinking water, improving water resource utilization and meeting water needs in different scenarios.

[0114] Optionally, in some embodiments, such as Figures 1 to 5 Figures 1 to 5 Figures 1 to 5 As shown, the water purification system also includes a microbial detection mechanism 26, a control mechanism 27, and an alarm mechanism 28. The microbial detection mechanism 26 is disposed within the pure water tank 14 and is electrically connected to the control mechanism 27. The microbial detection mechanism 26 is used to detect the number of microorganisms in the pure water tank 14; wherein the microbial detection mechanism 26 is a microbial detector. The alarm mechanism 28 is electrically connected to the control mechanism 27 and is used to issue an alarm. The control mechanism 27 is used to receive and process the detection signals from the detection mechanism and control the activation and deactivation of the alarm mechanism 28. wherein the alarm mechanism 28 is an audible and visual alarm.

[0115] Specifically, the microbial detection mechanism 26 monitors the number of microorganisms in the pure water tank 14 in real time. When the number of microorganisms in the pure water tank 14 exceeds a preset value (exceeding the standard), the microbial detection mechanism transmits the detection signal to the control mechanism 27. After receiving the detection signal, the control mechanism 27 processes and analyzes it, and then controls the alarm mechanism 28 to activate and issue an alarm to remind staff that the number of microorganisms in the pure water tank 14 exceeds the standard, requiring timely handling and replacement of the ultrafiltration membrane module 10 and the seawater reverse osmosis membrane module 12. This achieves real-time monitoring of the water quality in the pure water tank 14, enabling timely detection of water quality anomalies and prompting staff to take action through alarms, ensuring the safety of drinking water and improving the intelligence and reliability of the entire water purification system. The preset value in this embodiment can be set according to actual conditions.

[0116] Specifically, the water purification system of the water purification vehicle in this embodiment has the following processing flow;

[0117] (I) Freshwater treatment process (without using seawater reverse osmosis membrane module 12)

[0118] Raw water is stored in raw water tank 1 from an external water source via submersible pump 23 or water supply truck.

[0119] Turn on the pretreatment booster pump 2, and the raw water enters the pretreatment filtration mechanism under the action of the pretreatment booster pump 2. It passes through the titanium rod filter 3 to remove larger particulate impurities, the quartz sand filter 4 to remove suspended particulate matter, silt, etc., and the activated carbon filter 5 to adsorb organic matter, odors, pigments, etc.

[0120] Pretreated water enters the first ultraviolet sterilizer 6, where it undergoes preliminary sterilization under the action of ultraviolet light.

[0121] After sterilization, part of the water enters the intermediate water tank 7 as the source of domestic water and is delivered to the domestic water use point by the domestic water supply pump 22; the other part enters the precision filter 8 under the action of the ultrafiltration booster pump 9 to remove tiny suspended particles, colloids, etc.

[0122] Depending on the water temperature, select whether to turn on the heat exchanger 17 and the heating mechanism 18. If the water temperature is low, turn off the second control switch 172 and turn on the first control switch 171 and the heating mechanism 18. The water flows through the heat exchanger 17 and is heated before entering the precision filter 8. If the water temperature is suitable, turn off the first control switch 171 and turn on the second control switch 172. The water flows directly into the precision filter 8.

[0123] Water that has undergone precise filtration enters the ultrafiltration membrane module 10. Under pressure, water and small molecules pass through the ultrafiltration membrane, while colloids, large organic molecules, etc. are retained. The resulting purified water enters the pure water tank 14.

[0124] When drinking water is needed, the drinking water supply pump 16 is turned on. The water in the pure water tank 14 is sterilized again by the second ultraviolet sterilizer 15 and then transported to the drinking water use point by the drinking water supply pump 16.

[0125] The microbial detection unit 26 monitors the number of microorganisms in the pure water tank 14 in real time. If the number of microorganisms exceeds the standard, the control unit 27 controls the alarm unit 28 to issue an alarm.

[0126] (II) Seawater Treatment Process (Activation of Seawater Reverse Osmosis Membrane Module 12)

[0127] Raw water (seawater) is stored in raw water tank 1 via submersible pump 23 or water supply truck. The subsequent pretreatment filtration, first ultraviolet sterilization, precision filtration, and ultrafiltration membrane module 10 treatment process are the same as the steps in the freshwater treatment process.

[0128] Water treated by the ultrafiltration membrane module 10 enters the seawater reverse osmosis membrane module 12 under the action of two-stage booster pumps 11. It is first initially pressurized by the seawater desalination supply pump 111, and then further pressurized by the seawater desalination high-pressure pump 1112 to meet the working pressure requirements of the seawater reverse osmosis membrane module 12.

[0129] Inside the seawater reverse osmosis membrane module 12, water molecules pass through the reverse osmosis membrane, while salt ions are retained, and the resulting desalinated water enters the sodium hypochlorite generator sterilizer 13.

[0130] The desalinated water is disinfected by sodium hypochlorite in the sodium hypochlorite generator sterilizer 13, and then enters the pure water tank 14. At the same time, the circulation pump 131 is turned on, so that the water in the pure water tank 14 circulates between the sodium hypochlorite generator sterilizer 13 and the pure water tank 14 through the circulation pipe 132, ensuring that the disinfection is uniform and thorough.

[0131] When drinking water is needed, the drinking water supply pump 16 is turned on. The water in the pure water tank 14 is sterilized again by the second ultraviolet sterilizer 15 and then transported to the drinking water use point by the drinking water supply pump 16.

[0132] The microbial detection unit 26 monitors the number of microorganisms in the pure water tank 14 in real time. If the number of microorganisms exceeds the standard, the control unit 27 controls the alarm unit 28 to issue an alarm.

[0133] (III) Pretreatment Filtration Unit Backwashing Process

[0134] When the filtration efficiency of the pretreatment filter decreases (e.g., the pressure difference between the inlet and outlet exceeds 0.1 MPa), a backwashing operation should be performed.

[0135] Turn off the pretreatment booster pump 2 to stop the raw water from entering the pretreatment filtration unit.

[0136] Turn on the pretreatment backwash pump 19. Under the action of the pretreatment backwash pump 19, the water in the intermediate water tank 7 enters the titanium rod filter 3 and the quartz sand filter 4 in reverse to wash away the impurities trapped on the filter media. The backwash wastewater is discharged through the drain pipe.

[0137] After backwashing for a period of time (usually 5-10 minutes), turn off the pretreatment backwash pump 19 to complete the backwashing.

[0138] (IV) Cleaning process for ultrafiltration membrane module 10 and seawater reverse osmosis membrane module 12

[0139] When the permeate flow of ultrafiltration membrane module 10 or seawater reverse osmosis membrane module 12 decreases by more than 15% or the inlet and outlet pressure difference exceeds the specified value, a cleaning operation shall be performed:

[0140] Stop the raw water from entering the membrane module, turn on the cleaning pump 20, and the water or cleaning solution in the pure water tank 14 enters the membrane cleaning filter 21 under the action of the cleaning pump 20. After filtration, it enters the ultrafiltration membrane module 10 or the seawater reverse osmosis membrane module 12 to clean the ultrafiltration membrane module 10 or the seawater reverse osmosis membrane module 12. The cleaning wastewater is discharged through the drain pipe.

[0141] After cleaning for a period of time (depending on the level of contamination, usually 30-60 minutes), turn off the cleaning pump 20 to complete the cleaning process.

[0142] Unlike existing technologies, the water purification system of the water purification vehicle in this embodiment has the following beneficial effects:

[0143] The water purification system of this embodiment, through a combination of a pretreatment filtration mechanism, a precision filter 8, a first ultraviolet sterilizer 6, an ultrafiltration membrane module 10, a seawater reverse osmosis membrane module 12, and a second ultraviolet sterilizer 15, can treat various types of water sources, including freshwater, brackish water, and seawater. Whether it's water sources suddenly polluted in urban waterworks, surface water or groundwater obtained on-site during field engineering operations, or even seawater from island areas, all can be purified through this water purification system, greatly expanding the application range of the equipment and solving water problems in different scenarios.

[0144] Excellent purification effect: The pretreatment filtration unit gradually removes large, medium, and small particulate impurities, as well as organic matter and odors from the water; the ultrafiltration membrane module 10 further removes bacteria, colloids, and other large molecular impurities; the seawater reverse osmosis membrane module 12 achieves deep desalination and removes small molecular organic matter and heavy metal ions, ultimately producing pure water that meets drinking water standards. This multi-stage filtration and membrane separation process can effectively cope with water sources of various pollution levels, ensuring the safety and reliability of the purified water.

[0145] This embodiment relates to a water purification vehicle, including a vehicle compartment and a water purification system, with the water purification system installed inside the vehicle compartment. The integrated water purification system forms a mobile water purification vehicle with excellent mobility. In emergencies such as natural disasters or sudden water source pollution, it can be quickly transported to the scene to rapidly carry out water purification operations, providing clean water to affected people or affected areas, effectively alleviating emergency water supply pressure, and reducing the risk of secondary disasters and public health crises caused by water shortages.

[0146] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A water purification system for a water purification vehicle, characterized in that: include: Raw water tank, A pretreatment filtration mechanism is connected to the raw water tank via a pipeline, and the pretreatment filtration mechanism is used for preliminary filtration of the water source; A pretreatment booster pump is installed on the pipeline between the pretreatment filtration mechanism and the raw water tank. A first ultraviolet sterilizer is connected to the pretreatment filtration mechanism via a pipeline. An intermediate water tank is connected to the first ultraviolet sterilizer via a pipeline. A precision filter, wherein the precision filter is connected to the first ultraviolet sterilizer via a pipeline; An ultrafiltration booster pump is installed in the pipeline between the precision filter and the first ultraviolet sterilizer. An ultrafiltration membrane module, wherein the ultrafiltration membrane module is connected to the precision filter via a pipeline; And a pure water tank, which is connected to the ultrafiltration membrane module via a pipeline.

2. The water purification system of the water purification vehicle according to claim 1, characterized in that: The water purification system also includes a seawater reverse osmosis membrane module and a two-stage booster pump; The seawater reverse osmosis membrane module and the ultrafiltration membrane module are connected by pipelines; The two-stage booster pump is installed on the pipeline between the seawater reverse osmosis membrane module and the ultrafiltration membrane module; The seawater reverse osmosis membrane module is connected to the pure water tank via pipelines.

3. The water purification system of the water purification vehicle according to claim 2, characterized in that: The two-stage booster pump includes a seawater desalination water supply pump and a seawater desalination high-pressure pump, which are respectively installed in the pipeline between the ultrafiltration membrane module and the seawater reverse osmosis membrane module.

4. The water purification system of the water purification vehicle according to claim 2, characterized in that: The water purification system also includes a sodium hypochlorite generator sterilizer, circulation pipelines, and a circulation pump. The sodium hypochlorite generator sterilizer is installed on the pipeline between the seawater reverse osmosis membrane module and the pure water tank; One end of the circulation pipeline is connected to the sodium hypochlorite generator sterilizer, and the other end of the circulation pipeline is connected to the pure water tank. The circulation pump is installed on the circulation pipeline.

5. The water purification system of the water purification vehicle according to claim 4, characterized in that: The water purification system also includes a drinking water supply pump and a second ultraviolet sterilizer. The drinking water supply pump is connected to the pure water tank via a pipeline, and the second ultraviolet sterilizer is installed on the pipeline between the drinking water supply pump and the pure water tank.

6. The water purification system of the water purification vehicle according to claim 1, characterized in that: The water purification system also includes a heat exchanger and a heating mechanism. The heat exchanger is connected to the ultrafiltration booster pump via a pipeline, the heat exchanger is connected to the precision filter via a pipeline, and the heating mechanism is connected to the heat exchanger via a pipeline. The heating mechanism is used to provide a heat source to the heat exchanger. A first control switch is provided on the pipeline between the heat exchanger and the ultrafiltration booster pump, and a second control switch is provided on the pipeline between the ultrafiltration booster pump and the precision filter.

7. The water purification system of the water purification vehicle according to claim 6, characterized in that: The water purification system also includes a temperature detection mechanism and a control mechanism; The temperature detection mechanism is installed inside the raw water tank and is used to detect the water temperature inside the raw water tank. The temperature detection mechanism is electrically connected to the control mechanism, the heating mechanism is electrically connected to the control mechanism, the first control switch is electrically connected to the control mechanism, and the second control switch is electrically connected to the control mechanism. The control mechanism is used to receive and process the signals sent by the temperature detection mechanism, and to control the heating mechanism, the first control switch, and the second control switch to open or close.

8. The water purification system of the water purification vehicle according to any one of claims 1 to 7, characterized in that: The pretreatment filtration mechanism includes a titanium rod filter, a quartz sand filter, and an activated carbon filter, which are sequentially arranged in the pipeline between the pretreatment booster pump and the first ultraviolet sterilizer.

9. The water purification system of the water purification vehicle according to claim 8, characterized in that: The water purification system also includes a pretreatment backwash pump, which is connected to the intermediate water tank via a pipeline, and is also connected to the titanium rod filter and the quartz sand filter via pipelines.

10. The water purification system of the water purification vehicle according to claim 2, characterized in that: The water purification system also includes a cleaning pump and a membrane cleaning filter. The cleaning pump is connected to the pure water tank through a pipeline, the membrane cleaning filter is connected to the cleaning pump through a pipeline, and the membrane cleaning filter is connected to the ultrafiltration membrane module and the seawater reverse osmosis membrane module through pipelines respectively.

11. The water purification system of the water purification vehicle according to any one of claims 1 to 7, characterized in that: The water purification system also includes a submersible pump and an automatic cleaning filter. The submersible pump is connected to the raw water tank via a pipeline, and the automatic cleaning filter is installed on the pipeline between the submersible pump and the raw water tank.

12. The water purification system of the water purification vehicle according to any one of claims 1 to 7, characterized in that: The water purification system also includes a domestic water supply pump, which is connected to the intermediate water tank via a pipeline.

13. The water purification system of the water purification vehicle according to any one of claims 1 to 6, characterized in that: The water purification system also includes a microbial detection mechanism, a control mechanism, and an alarm mechanism; The microbial detection mechanism is installed inside the pure water tank and is electrically connected to the control mechanism. The microbial detection mechanism is used to detect the number of microorganisms in the pure water tank. The alarm mechanism is electrically connected to the control mechanism. The alarm mechanism is used to issue an alarm, and the control mechanism is used to receive and process the detection signal from the detection mechanism and control the start and stop of the alarm mechanism.

14. A water purification vehicle, characterized in that: Including carriages and The water purification system as described in any one of claims 1 to 13 above. The water purification system is installed inside the carriage.

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