DESC:FIELD OF THE INVENTION
The present invention relates to water purification and dispensing systems, with a particular emphasis on an advanced water purifier designed for both domestic and commercial use. This invention introduces a portable, electricity-powered water dispenser that integrates innovative flow control and temperature regulation mechanisms.
Distinguishing itself from conventional models, the dispenser employs a sophisticated 6-stage purification process to ensure high-quality water, which can be dispensed at four selectable temperatures: ambient, cold, lukewarm, and hot. A key aspect of the invention is its thermoelectric cooling and resistive heating technology, applied in a novel configuration to enhance energy efficiency and performance. Additionally, the dispenser features an exclusive flow control system, which optimizes water distribution for user convenience and operational efficiency.
Designed to resemble traditional water dispensers, this invention seamlessly combines standard purification methods with state-of-the-art cooling and heating components, providing a modernized, all-in-one solution for purified water delivery. The scope of the invention extends beyond just its structural design and materials, encompassing the unique functional integrations that contribute to its superior usability and efficiency.
BACKGROUND AND PRIOR ART OF THE INVENTION
The objective of this module is to amalgamate the water purification and storage capacities of conventional devices, which often pose more problems than solutions for users. The multifaceted issues faced by users in this category can be formally categorized as follows:
1. Purification Method: Users often question the method of water purification.
2. Storage Solution: Concerns arise regarding the storage of purified water.
3. Cooling Mechanism: Users seek clarity on how the cooling process is facilitated.
There has been global awareness regarding the adoption of portable water purification systems employing reverse osmosis (RO) technology. However, the World Health Organization has reported adverse effects on the human body due to prolonged consumption of RO water, resulting from the uncontrolled depletion of essential minerals (90% to 99% of Mg and Ca) from the water source. Drinking such mineral-depleted water can have detrimental effects on health, as observed in populations such as those in Czech and Slovak regions, where individuals suffered from cardiovascular disorders, fatigue, weakness, and acute muscular cramps. The Hon’ble Supreme Court, acknowledging the gravity of the situation, has refused to intervene with the National Green Tribunal's order to prohibit RO water purifiers. Hence, control over the filtration system is a crucial criterion that needed addressing in a multipurpose module. This was achieved by integrating a Total Dissolved Solids (TDS) sensor into the system and incorporating the capability to bypass the RO filtration system from the standard six-stage filtration method applied in this module. This allows for the preservation of mineral concentration in cases where the inlet water is already sufficiently clean, thereby mitigating the risk of mineral depletion to dangerous levels.
Another significant issue commonly overlooked in conventional filtration and dispensing units is the direct storage of water in plastic containers and the excessive use of plastic flow tubes and components. In India, the bottling of packaged drinking water predominantly employs PET (Polyethylene terephthalate), which poses hazards to both consumers and the environment, contributing to unmanageable plastic pollution. Most conventional RO filters and water dispensers exacerbate these concerns by heavily relying on plastic components in the storage modules. To address this, the design of the module ensures that the entire storage unit in the dispenser part has no plastic components in contact with the stored water, while pipelines and connectors utilize minimal plastic components, thereby mitigating long-term health risks associated with plastic usage.
Many devices known in the art for water purification and cold/hot water dispensing and incorporated herein as reference,
US9206060B1 describes a system and method for multistage liquid purification including a first phase liquid purification and a final phase liquid purification. The first phase liquid purification includes providing a saline liquid to a plurality of first phase reverse osmosis units. The final phase liquid purification includes providing the processed liquid from the first phase liquid purification to a final phase reverse osmosis unit for desalination by reverse osmosis.
CN 107289731B describes a water dispenser comprising: a filter unit filtering raw water supplied from the raw water supply unit to generate purified water; a cold water tank assembly that cools purified water to generate cold water; a refrigeration cycle device that maintains cooling water filled in the cooling water containing unit at a low temperature; a cooling water flow passage that supplies raw water or purified water to the cooling water containing unit; a flow sensor that measures a flow rate of raw water or purified water supplied to the cooling water containing unit; an agitator configured to be rotatable so as to agitate the cooling water filled in the cooling water containing unit; and a controller that determines whether the cooling water has been filled to a reference level based on a rotation speed of the pulsator per unit time.
US Patent no. US10654699B2 describes a liquid dispenser, comprising: a water tank configured to store cooling water therein; a water tank cover configured to cover an opened upper end of the water tank; a cooling module provided in the water tank to circulate refrigerant there through to cool the cooling water; a motor installed at the water tank cover and configured to provide a rotational force; an agitator connected to the motor to receive the rotational force from the motor and protruding downward from the motor to be immersed in the cooling water filled in the water tank; a cooling coil through which drinkable water flows; and a cooling module supporter installed in the water tank, wherein the cooling module includes a coil-shaped refrigerant tube surrounding the agitator at a position spaced apart from the agitator, wherein the cooling coil is configured to surround the agitator at a position spaced apart from the agitator, and is immersed in the cooling water filled in the water tank to allow the drinkable water passing through the cooling coil to be cooled, and wherein the cooling module supporter comprises: an upper groove formed to support a lower end of the cooling module; and a lower groove mounted on the cooling coil.
The first patent literature discloses respectively reverse osmosis technique for purification and the rest two patent literatures incorporated herein above as references disclose water dispensers and used a conventional refrigeration technology to supply cold water and the said cooling devices mounted to the whole tank which stores the water. There are many problems and limitations in known systems observed by the present inventor such as cooling the storage tank requires more and constant energy which leads to more power consumption and a major issue with existing products is their reliance on conventional compressor-based cooling systems, often requiring CFCs or HCFCs, which pose environmental threats. CFCs deplete the ozone layer, exposing individuals to harmful UV radiation, while HCFCs contribute to greenhouse gas emissions, exacerbating global warming. Additionally, the repair and portability of such products are cumbersome.
To address these issues, an alternative cooling method, the present inventor proposed to solve this problem by using a thermoelectric cooling unit incorporating a Peltier module, thus providing a more efficient and environmentally friendly cooling solution.
The resulting device is a portable, all-in-one, all-weather purifier model, featuring no harmful refrigerants, minimal plastic usage, and water storage and piping comprising food-safe stainless steel components. The RO unit can be bypassed based on feedback from the inbuilt TDS meter, while the dispenser offers hot, warm, cold, and normal water options to cater to user preferences and requirements.
OBJECTIVES OF THE INVENTION
The primary objective of the present invention is to redefine and enhance temperature-controlled water purification and dispensing systems by integrating an advanced design that optimally utilizes Peltier-based cooling and resistive heating. This innovation is further complemented by a specially engineered flow control system, ensuring precise and efficient water distribution while maintaining superior temperature regulation.
Another key objective of this invention is to develop a highly efficient purification and dispensing system that can process raw water through a multi-stage filtration process while offering a smart multichannel distribution mechanism. Unlike conventional systems that rely on bulky and energy-intensive cooling methods, this invention eliminates the need for traditional refrigeration-based cooling and instead leverages thermoelectric cooling (Peltier modules) and resistive heating for precise temperature management.
A further objective is to provide a comprehensive solution that combines both purification and temperature control functionalities in a single unit. Traditional appliances in this category often function as either purifiers or dispensers, requiring separate systems for water filtration and temperature adjustments. In contrast, this invention integrates both functionalities seamlessly, offering filtered water at ambient, cold, lukewarm, or hot temperatures. It also features rapid heating and cooling cycles with an automatic cut-off system that activates once the desired temperature and storage conditions are met. This mechanism minimizes unnecessary power consumption while ensuring optimal efficiency.
Additionally, the invention is designed to maintain energy efficiency despite its capability to draw a peak power of 750W when all functional stages operate simultaneously. Over extended usage periods, the system achieves low average power consumption through the use of intelligent feedback mechanisms, auto-cut-off features, thermoelectric cooling, resistive heating, and thermal storage units made from thermo-steel materials. This ensures sustained energy savings without compromising performance.
Furthermore, the invention aims to protect and establish the uniqueness of its design, particularly focusing on its innovative flow control dynamics and automated heating-cooling cycles. These features not only enhance user convenience but also contribute to smarter resource utilization, making it an ideal solution for both residential and commercial settings.
SUMMARY OF THE INVENTION
A preferred embodiment of the invention, there is provided an efficient water purification and water dispensing device with unique flow control system comprises; a RO purification unit, an improved and innovative storage tank with lid, a temperature control unit including a thermoelectric device (Peltier device) and a sandwiched heating block, a distribution system including supply network of hollow tubes, plurality of pumps and valves, a dispenser unit and an embedded control system.
- In another embodiment the RO purification unit conventionally used to purify the water and the constructional and functional aspects are known to the person skilled in the art, however, certain modifications in arrangements of components incorporated for better efficacy and achieving the compactness of the whole system. One modification in this scheme to bypass the RO, provided an extra UF filter (10’) illustrated in FIG. 4 for purification and solenoid valve (9 and 9’) for closing and opening the path for purified water.
- In another embodiment the storage tank (16) with multi port lid (fig. 2) made up with double wall vacuum insulated thermo-steel comprises inlet for purified water from RO, a TDS sensor, two types of float switch, plurality of outlet tubes from the lid of the said tank, a direct water outlet/faucet is positioned in said tank to dispense normal water.
Purified water from the filtration stage supplied into said main storage tank through the inlet mounted on lid of the said storage tank (16), a TDS sensor is disposed in communication with the said inlet for measuring the TDS value of that purified water before the water supplied to the main storage tank (16), two float switches are disposed in the said tank (16) wherein, one float switch strategically positioned to the upper level of the tank to ensure and indicate that the water level in tank is on its maximum capacity and the other float switch is positioned in more depth to monitor water level in tank and transmit information to control system when the water level reaches around 50% of storage tank capacity. Further plurality of outlets disposed in main tank for distribution of water from main tank (16) and are further connected to the different storage tanks i.e. cold water tank (17), warm water tank (18) and hot water tank (28).
The sub tanks (17, 18 & 28) are connected to the main tank (16) independently through connecting pipes wherein a mini pump ( 19, 22, 25) are disposed in between to facilitate the supply of water from main tank to respective sub tanks in efficient manner. Said sub tanks (17, 18, 28) further comprises a Y inlet configured in lid of all the sub tanks (17, 18, 28) independently, wherein; the lower end of Y inlet positioned in sub tank till upper level of tank and do not run up to the bottom of the tank, one arm of the each Y-inlet is disposed in communication with main storage tank (16) through a mini pump and receives water from main tank (16) and the other arm of each Y inlet positioned in communication with the temperature control devices (fig. 1A,1B-1C) individually, said other arm of Y inlet receives the water after temperature treatment from the respective temperature control devices (fig. 1A,1B-1C) and also to facilitate the circulation of water and complete the cooling/heating cycle till the predefined desired temperature of water of corresponding water tank achieved.
- In another embodiment the system comprises two temperature controlling devices (fig. 1, 1A) preferably at least one out of two devices is an thermoelectric cooling device (fig. 1A) positioned to facilitate cooling of water. The outer end of one of the three outlets embedded inside the main storage tank (16) is connected to the one arm of Y inlet of Cold Storage tank (Fig 3A) though a mini pump. Water is drawn from the interior of subtank (17) through a hollow tube inside the subtank using a mini pump and is circulated to the thermoelectric module and returns back to the subtank through the other arm of Y inlet forming a closed loop of water flow. The cooling block made from high thermal conductivity material is sandwiched between two peltier modules (fig-1A) where the cold surface of the peltier module is in contact with the cooling block and the hot surface is clamped with a heatsink (fig 1A). The water circulates between cold water tank (17) and said peltier block in a cooling cycle till the water reaches a predefined desired temperature.

wherein the second temperature control device (fig. 1, 1B-1C) is essentially a heating module disposed in communication with the submerged outlets from the sub tanks (18 & 28) independently at one end and further positioned in communication with the one arm of the Y inlet for circulating and completing heating cycle of water between sub tanks (18, 28) and sandwiched heating module, wherein said heating module comprises a water input/output area sandwiched between two heating blocks as illustrated in fig-1B-1C.
- In another embodiment the system comprises a distribution system (fig-4) comprising plurality of outlets from main tank (16) holding purified water further connected to plurality of pumps and plurality of solenoid valves; all components of distribution system monitored and controlled by embedded control system.
- In another embodiment the said embedded control system disposed in communication with all the main components of the device which monitor and control the functions of each components as per user preference and comprises plurality of sensors, relay modules, temperature monitoring and control sensor, TDS monitoring and control sensor, a control panel and a colour display with touch screen.
- In another embodiment the dispensing unit comprises main storage tank (16) with faucet for normal water and three other tanks (17, 18 & 28) each having one faucet each to dispense desired water from corresponding tanks like cold, warm and hot water, wherein the faucet disposed in main tank is directly in communication with the stored water whereas the rest of the three faucets are independently disposed in communication with one outlets of each sub tanks and a mini pump is also positioned in between each said faucets and the outlets to facilitate efficient dispensing of water from corresponding sub tanks. The dispensing unit is made up of plastic free materials.
The present invention represents a significant breakthrough in the realm of water purification and dispensing technology, offering an innovative solution to the challenges associated with filtering and dispensing water at various temperatures. At its core, the apparatus harnesses the strategic utilization of Peltier cooling and resistive heating within a meticulously designed double-layered structure. This design not only facilitates precise temperature control through the integration of temperature sensors but also establishes an ideal thermal environment for efficient heating and cooling processes. Additionally, the invention incorporates thermosteel-based thermal insulation for water storage to minimize heat loss, along with a robust structural design and minimal use of plastic to mitigate potential health risks.
This configuration ensures enhanced operational efficiency, featuring intelligent water flow control and a carefully orchestrated heating and cooling sequence aimed at maximizing efficiency while prioritizing user safety. In essence, the invention revolutionizes water purification and dispensing by offering a comprehensive solution that optimizes both performance and safety considerations.
BRIEF DESCRIPTION OF DRAWINGS
The foregoing and other objects, features, and advantages of the invention will become more apparent from a reading of the following description in connection with the accompanying drawing of a preferred embodiment of the invention, in which:
FIG. 1 illustrating arrangement of thermoelectric device, fig. 1(A) thermoelectric cooling module, fig. 1(B) heating module. Fig. 1(C) the cooling/heating block used with an intricate channel network for maximizing heat transfer,
FIG. 2 illustrating the main storage tank with multi port lid,
FIG. 3 illustrating arrangement of cooling / warm / hot tank with multi port lid,
FIG. 4 illustrating arrangement of full device with water flow diagram of entire apparatus,
FIG. 5 illustrating arrangement for electronic circuit diagram,
FIG. 6 illustrating whole view of this water dispensing system,
While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the drawings and detailed description thereto are not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention as defined by the appended claims.

DETAILED DESCRIPTION OF THE INVENTION AND EXPERIMENTAL SECTION
It is to be understood that present invention is not limited to particular devices or methods, which may, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting. Headings are for organizational purposes only and are not meant to be used to limit or interpret the description or claims.
The present invention provides the innovative nature of a newly developed water filtration and dispensing system, highlighting its significant advancement over traditional RO (Reverse Osmosis) filtration units and temperature-controlled water dispensers possessing the following key benefits:
1. Significant Leap: This indicates that the present invention provides a substantial advancement in the field. The new system offers major improvements or innovations compared to existing technologies.
2. Revolutionizing Traditional RO Filtration: The invention transforms the conventional RO filtration process, which typically involves removing impurities from water through a semi-permeable membrane, by introducing novel features and improvements.
3. Temperature-Controlled Water Dispenser: Unlike conventional water dispensers that may offer limited temperature options, this invention includes precise temperature control features, allowing users to access water at desired temperatures such as cold, lukewarm, or hot.
4. Plastic-Free, Portable, and Efficient Module: The new system is designed to be plastic-free, addressing concerns about plastic pollution and potential health risks associated with plastic materials. Additionally, its portability makes it convenient for use in various settings, whether at home, office, or during travel. Moreover, it emphasizes efficiency, suggesting that it optimizes resource usage and energy consumption.
5. Innovative Heating-Cooling and Flow Control Unit: The present system incorporates unique mechanisms for heating, cooling, and controlling the flow of water. It contributes to the system's efficiency and effectiveness in providing purified and temperature-controlled water.
6. Maximum Efficiency: The system is designed to operate at maximum efficiency, implying that it achieves optimal performance while minimizing waste and energy consumption. This emphasis on efficiency underscores the inventiveness and practical value of the invention.
By integrating state-of-the-art purification, temperature control, and flow management, the present invention redefines the standards for water filtration and dispensing systems, offering a highly efficient, eco-friendly, and user-friendly solution.
The basic design of the product comprises of two components:
A. Flow-controlled filtration module comprising 6-stage filtration module designed for efficient purification of raw water, and
B. Water storage and dispensing module: This module is responsible for storing and dispensing purified water at various temperatures and consists of the following subcomponents:
i) Main storage tank with dispensing and distribution provisions of purified water (room temperature),
ii) Water cooling and storage module Utilizing a thermoelectric cooling system (Peltier-based) with an insulated storage tank to maintain water at a predefined cold temperature,
iii) Water heating and storage module for:
a) ambient and lukewarm water
b) hot water
This modular approach ensures seamless integration of purification, storage, temperature regulation, and dispensing, making it an efficient and user-friendly solution for both domestic and commercial applications.
A. Flow-controlled filtration module:
One of the pivotal technical features of this innovation lies in the meticulous establishment of a feedback-driven flow control mechanism between the filtration and dispensing modules, meticulously engineered to minimize operational inefficiencies and user delays.
Breakdowns of the essential technical features incorporated into the system are:
1. Inlet Water Management: The system begins by managing the inlet water through a low-pressure electrical switch, integrated with feedback from the storage drum's water level. This setup ensures that water passage through the flow system is initiated only when the float switch atop the drum isn't activated.
2. Filtration Stages:
This stage is divided into two parts:
a. Sediment and Activated Carbon Filters: The inlet water undergoes initial filtration through a sediment filter, followed by passage through an activated carbon filter facilitated by a solenoid valve and a booster pump.
b. Branching Filtration Paths: Post-activated carbon filtration (6), the water diverges into two paths. One path leads to a Reverse Osmosis (RO) module, while the other is directed to a TDS control valve, routing it to an ultra filtration unit.
3. RO Module Functionality:
This process consists of:
a. Solenoidal Valve Operation: Within the RO module, a solenoidal valve manages the water flow, offering two outputs. One output connects to an RO membrane, while the other provides a bypass route.
b. TDS Threshold Control: The solenoidal valve's operation is contingent upon the Total Dissolved Solids (TDS) count. If the TDS level exceeds a predetermined threshold, the valve directs water through the RO membrane. Conversely, if the TDS count is below the threshold, the valve bypasses the RO membrane entirely.
4. Additional Filtration and Treatment:
This component comprises of:
a. UV Treatment Chamber: The combined stream of water from the ultrafiltration and RO units passes through a UV treatment chamber for pathogen control.
b. Optional Filtration Modules: Post-UV treatment, optional filtration modules such as post-carbon filtration and alkaline mineral filtration (to replenish lost salts during the RO stage) are integrated, facilitated by a non-return valve.
5. Water Storage and Dispensing:
a. Stainless Steel Storage Tank: The treated water is then stored in a stainless-steel tank.
b. Output Management: Three outputs from the storage tank connect to cold, warm, and hot water tanks via valves and pumping systems, regulated by a water level switch, ensuring controlled dispensing.
By integrating these technical features, the present invention significantly improves water filtration, treatment, and dispensing processes, resulting in enhanced efficiency and user satisfaction while maintaining uncompromising standards of water quality and safety. These advancements enable the system to effectively remove impurities, pathogens, and contaminants from the water, ensuring that the dispensed water meets stringent quality standards. Additionally, the optimized design and functionality streamline the overall user experience, making the process of accessing purified water more convenient, reliable, and user-friendly. Overall, the incorporation of these technical features elevates the system's performance, reliability, and safety, ultimately benefiting both users and the broader community.
Heating/Cooling System
The heating and cooling method utilized in the apparatus relies on a double-sandwiched heating/cooling module, enabling dynamic temperature control of water. Upon activation from the front panel, the pump initiates the transfer of water from the heating and cooling tanks into a cascaded piping system enclosed within a metal casing. This system incorporates a double sandwiched structure, housing either resistive heaters or a cold plate of a Peltier device. Unlike static heating methods, where water molecules convict within a reservoir, dynamic heating directs each water molecule through the hot zone until the desired temperature is attained, significantly enhancing heating efficiency and speeding up the heating cycle. Once the desired temperature is reached, the heating module ceases to draw any current, enhancing power consumption efficiency. Special attention has been paid to insulate the hot water storage using a double-walled vacuum-insulated thermosteel flask, ensuring prolonged retention of high water temperatures. This meticulous insulation design is crucial for maintaining water hotness over extended periods, thereby optimizing the functionality and performance of the apparatus.
The cooling cycle in the apparatus diverges from conventional compressor-based methods, opting instead for thermoelectric cooling via a Peltier device. This technology operates on the principle that applying a voltage difference to the device induces a temperature disparity between its hot and cold surfaces. Drawing heat from the hot surface lowers its temperature, maintaining a lower temperature in the cold zone due to the induced temperature gradient. However, the efficiency of thermoelectric cooling hinges on the effective removal of heat from the hot surface. In this invention, a double sandwiched structure incorporates two Peltier devices sandwiching a metallic block composed of highly thermally conductive materials like copper and aluminum. Within this structure, an intricate channel design increases the surface area of flowing water. Water is pumped from the thermosteel into this metallic block through insulated copper pipes, facilitating more efficient temperature reduction. The heat sink installed above the hot plate of the Peltier device serves as an exceptionally efficient heat extractor, featuring heat pipes that utilize sealed fluid's high latent thermal evaporation for efficient heat transfer from the Peltier device's hot zone to the heat sink. Vertical fins on the heat sink distribute heat over a large surface area, which is then cooled by constant airflow generated by heavy-duty fans. Both the top and bottom Peltier devices work synergistically to maintain the cold zone of the Peltier device, attached to the water supply pipes, at a very low temperature, ensuring rapid and effective water cooling. This comprehensive cooling system demonstrates significant advancements in efficiency and effectiveness, ensuring optimal performance of the apparatus.
Water supply of the present invention is explained through the following flow table:
Water Level (50% float switch)
Main Tank Float Switch 100%
Cold Tank Float switch 100%
Hot Tank Water pump
Main tank
to cold tank Water pump Main tank
to hot tank
X (<50%) X (not full) X (not full) off off
X X v (full) off off
X v (full) X off off
X v v off off
v(>50%)
Timer circuit for 20 sec delay applied to keep stop the immediate feedback cutoff of the pumps if water reaches below 50% X X on on
v X v on off
v v X off on
v v v off off

The present invention introduces a newly developed water filtration and dispensing system that offers several significant advantages over traditional RO filtration units and temperature-controlled water dispensers.
Firstly, it represents a substantial advancement in the field, incorporating major innovations that enhance both efficiency and effectiveness compared to existing technologies. By revolutionizing the traditional RO filtration process, this system integrates novel features and improvements, ensuring superior water purification and user convenience.
Additionally, the system offers precise temperature control, allowing users to access water at their desired temperatures, catering to various preferences such as cold, lukewarm, or hot water. Unlike conventional dispensers with limited temperature options, this advanced functionality significantly enhances user experience.
A key advantage of this invention is its plastic-free, portable, and highly efficient design, addressing concerns about plastic pollution, environmental sustainability, and energy consumption. The incorporation of innovative heating, cooling, and flow control mechanisms further enhances the system’s performance, reliability, and ease of use.
The system is engineered to operate at maximum efficiency, minimizing waste and energy consumption, emphasizing its practical value and sustainability. Structurally, the apparatus comprises:
1. A flow-controlled filtration module that integrates advanced multi-stage purification to ensure optimal water quality.
2. A water storage and dispensing module, designed for seamless delivery of purified, temperature-controlled water.
The heating and cooling system of the invention utilizes a sandwiched module, enabling dynamic temperature control. This innovative approach enhances heating efficiency and reduces power consumption, while meticulous insulation ensures prolonged retention of high water temperatures.
Similarly, the thermoelectric cooling system, powered by Peltier devices and advanced heat extraction mechanisms, enables rapid and efficient water cooling, representing a significant leap forward in energy-efficient cooling technology.
Overall, this invention provides a comprehensive solution for optimized water filtration, treatment, and dispensing, offering unparalleled convenience, efficiency, and sustainability—ultimately benefiting both users and the broader community.

,CLAIMS:I/We Claim:
1. A water filtration and dispensing system, comprising:
a. A flow-controlled filtration module, comprising a multi-stage filtration process, including sediment filteration (3), reverse osmosis (RO), ultra-filtration (UF), UV pathogen control, and optional post-carbon (12) and mineral replenishment filtration (13) stages;
b. A water storage and dispensing module, comprising a main storage tank (16) for purified water and dedicated cold (17), warm, and hot water sub-tanks for temperature-controlled dispensing;
c. A dynamic temperature control system (fig. 1A,1B-1C) utilizing resistive heating elements and thermoelectric Peltier devices configured in a double-sandwiched arrangement for precise and efficient temperature regulation of water.
2. The water filtration and dispensing system of claim 1, wherein the flow-controlled filtration module further comprises of:
a. A solenoid valve (9), selectively directing water to either the RO module (10) or the ultra-filtration (10) unit based on the Total Dissolved Solids (TDS) level detected by a sensor;
b. A UV treatment chamber (11) placed downstream of the UF and RO modules to further sterilize the filtered water and ensure pathogen-free water.
3. The water filtration and dispensing system of claim 1, wherein the multi-stage filtration process is configured such that the reverse osmosis (RO) filtration and ultra-filtration (UF) operate concurrently, with water being diverted to a TDS control valve to either undergo RO filtration or bypass the RO membrane based on TDS concentration.
4. The water storage and dispensing module of claim 1, wherein the main storage tank (16) and sub-tanks (cold, warm, and hot) are connected via a multi-port distribution system comprising a series of pumps, solenoid valves, and temperature monitoring sensors that dynamically regulate the flow and dispensing of water at precise temperatures.
5. The water filtration and dispensing system of claim 1, wherein the temperature control system includes:
a. A resistive heating block positioned in communication with the hot water tank to provide rapid heating of water, with the heating block incorporating a feedback loop that automatically disengages the heating cycle once the desired water temperature is reached, ensuring energy efficiency;
b. A thermoelectric cooling system comprising two Peltier devices positioned in a double-sandwiched arrangement with a high-conductivity metallic block, facilitating efficient water cooling via heat transfer to a heat sink, which is actively cooled by forced air.
6. The water filtration and dispensing system of claim 5, wherein the Peltier-based thermoelectric cooling system includes:
a. A copper or aluminium heat sink positioned in direct thermal contact with the hot surface of the Peltier devices, comprising heat pipes and vertical fins to enhance heat dissipation;
b. A closed-loop cooling mechanism wherein water circulates through insulated copper pipes, passing through the thermoelectric module comprises; water cooling block, peltier module and heat sink thereby cooling water to the desired temperature before being directed to the cold water tank.
7. The water filtration and dispensing system of claim 1, wherein the main storage tank (16) and sub-tanks are constructed from thermosteel and include a double-walled vacuum insulation layer, minimizing thermal loss and ensuring water temperature is maintained for extended periods.
8. The water filtration and dispensing system of claim 1, wherein the system is equipped with an integrated embedded control system comprising:
a. A plurality of sensors, including TDS sensors, temperature sensors, and water level sensors, for real-time monitoring and control of the filtration and dispensing processes;
b. A microprocessor-based control unit configured to regulate solenoid valve operations, pump activations, and heating/cooling cycles based on real-time sensor inputs and user-defined settings.
9. The water filtration and dispensing system of claim 1, wherein the flow control system employs a feedback-driven mechanism that adjusts the water flow rate from the main storage tank to the sub-tanks and dispensing points, optimizing the system’s efficiency and minimizing delays in water dispensing.
10. The water filtration and dispensing system of claim 1, wherein the system is plastic-free and portable, incorporating a modular design that facilitates ease of installation and transportation for both residential and commercial applications while minimizing environmental impact by reducing reliance on plastic materials.