Description:TECHNICAL FIELD OF THE INVENTION
The present invention relates to a system and method for the treatment of laundry with ozone, and various other systems for treatment of laundry. More specifically, the invention relates to an IOT enabled laundry treatment system that is adaptive to various commercial washing machines either as in-line or with mixing tank to provide ozonized water continuously during washing and remote monitoring.
BACKGROUND OF THE INVENTION
Commercial laundry facilities are widely recognized for their substantial resource consumption, encompassing chemicals, energy, and water, especially during wash cycles. The operational footprint is further exacerbated by the generation of wastewater, necessitating careful monitoring and treatment before disposal. These facilities exhibit diverse configurations, ranging from multiple single washing machines to continuous load washers like tunnel washers, or a combination thereof.
Furthermore, commercial laundry facilities, serving sectors such as hospitality and healthcare, face challenges associated with high resource consumption chemical usage, and wastewater treatment. Moreover, the conventional methods utilized often lead to increased operational costs and environmental concerns.
For instance, a "typical" commercial laundry facility may encompass several single washing machines with capacities ranging from 50 to 600 pounds. As an illustration, a facility equipped with four 600-pound and two 100-pound single washers could yield an annual production exceeding 12 million pounds, assuming operations across three shifts per day. The laundry processed in such facilities spans a wide range, including white and colored towels, bed linens, tablecloths, bath mats, blankets, and medical supplies. Each category of laundry often dictates a specific chemical formula, typically involving detergents, alkalis, bleach, anti-bleach, sour agents, and fabric softeners.
The laundry process itself involves several filling and draining cycles for each wash cycle, adding to the complexity of resource utilization. In situations where additional treatment for impurities, such as lint filtration, or pH adjustment of wash wastewater is necessary, it further necessitates the introduction of chemicals like sulfuric acid and sodium hydroxide. Consequently, the environmental impact and operational challenges associated with conventional commercial laundry practices underscore the critical need for innovative and sustainable solutions in this industry.
Therefore, to solve the above mentioned shortcomings, the present invention discloses an innovative approach to laundry by utilizing ozonized water in the washing process, thereby reducing water and chemical consumption.
OBJECTIVES OF THE INVENTION
The primary objective of the present invention is to provide a comprehensive ozone based treatment system and method for commercial washing machines that ensures efficient and effective treatment of laundry.
Another objective of the present invention is to provide a laundry treatment system and method that reduces the COD (Chemical Oxygen Demand) values in wastewater generated during the laundry process. By employing ozonized water and minimizing the use of certain chemicals, the system aims to produce wastewater with lower COD values, aligning with environmental regulations and standards.
Another objective of the present invention is to provide a laundry treatment system and method integrated with an Internet of Things (IOT) system, providing users and administrators with real-time insights and control over system parameters.
Another objective of the present invention is to provide a laundry treatment system and method that optimizes the use of chemical detergents and additives such as bleach, Anti-chlor (anti-bleach), sour, and fabric softener by utilizing ozonated water, leading to reduced detergent usage, cost savings, and a decreased environmental impact.
Another objective of the present invention is to provide a laundry treatment system and method that reduces lint collection, and extend the life of linen in commercial laundry operation, thereby minimizing replacement costs.
Another objective of the present invention is to provide a laundry treatment system and method that enhances operational convenience through features such as remote monitoring, controls, and alert via IoT connectivity.
Further objectives, advantages, and features of the present invention will become apparent from the detailed description provided herein below, in which various features and functionalities of the disclosed invention are illustrated by way of the following examples.
SUMMARY OF THE INVENTION
For the purpose of summarizing this invention, the present invention discloses a laundry treatment system and method that reduces the dependency on traditional chemical detergents in commercial laundry process. By incorporating ozone in the form of ozonized water, the system aims to minimize the quantity of chemicals required for effective cleaning, leading to cost saving and environmental benefits.
In accordance with an embodiment, the present invention discloses an ozone treatment system designed for commercial washing machines, to enhance laundry processes. More particularly, the laundry treatment system comprises an oxygen concentrator connected to an ozone generator, wherein the oxygen concentrator is configured to extract oxygen directly from the surrounding air, eliminating the need for an external oxygen source. Once the oxygen is extracted, it is directed to the ozone generator, where it undergoes a conversion process facilitated by corona discharge technology. During this process, the oxygen molecules are dissociated and recombine to form ozone gas (O3). The ozone generated is then utilized in the treatment of laundry within commercial washing machine. The ozone generator further comprises an accumulator to store excess ozone during low-demand periods, optimizing resources use.
In accordance with another embodiment, the laundry treatment system further comprises a motor, a venturi system, and various electronic components, including calculation software. The ozone generation system produces ozone, a powerful oxidizing agent, while the oxygen generation system ensures a continuous supply of pure oxygen. Motors and electronic components facilitate the integration and seamless operation of the system.
The venturi system plays a crucial role in creating a negative pressure for uniform mixing of water and ozone. This integration enables the system to utilize ozonated water more efficiently during washing cycles. Furthermore, a motor-driven ozone injection system enhances precision, while a dual solenoid mechanism prevents backflow, maintaining system integrity. A circulation tank extends ozone-water contact time for improved dissolution, and an ozone destructor neutralizes residual ozone for environmental safety.
For advanced functionality, the present invention discloses an Internet of Things (IoT) enabled ozone treatment system allowing remote monitoring and control various component of the system like working of ozone generator, oxygen concentrator, motor, solenoid, etc. The invention also prioritizes energy efficiency with a timer switch for scheduled cycles and a pressure switch for consistent treatment performance.
Furthermore, the step-by-step working of the laundry treatment system involves the extraction of pure oxygen by oxygen generator, ozone generation through ozone generation system, motor-driven circulation, backflow prevention through dual solenoid mechanism, enhanced ozone dissolution within a mixing tank, supplying ozonated water to plurality of connected washing machines, IoT monitoring, timer and pressure control, excess ozone management, and real-time feedback control for efficient and sustainable laundry treatment.
The invention's advantages include efficient detergent use with ozonated water, leading to cost savings and reduced environmental impact. Ozone's oxidizing power lowers Chemical Oxygen Demand (COD) in wastewater, contributing to environmental sustainability.
The unique aspects of the invention lie in its ability to reduce chemical usage without compromising the quality of laundry treatment. The comprehensive approach of the present invention addresses not only the immediate challenges faced by commercial laundries but also contributes to resource efficiency, cost savings, and environmental sustainability.
BRIEF DESCRIPTION OF DRAWINGS
Fig. 1 illustrates a perspective view of a laundry treatment system according to an embodiment of the present invention.
Reference numerals
1, 2, 3 – Washers
4 – Ozone generators
5 – IOT device
6 – Accumulator
7, 19 – Solenoid
8 – Drainage
9, 11, 14 – Gate Valve
10 – Oxygen concentrator
12 – Pressure gauge
13 – Venturi system
15 – Pressure switch
16 – Circulation pump
17 – Micro bubbler
18 – Contact tank
20 – Ozone Destructor
21 – To exhaust
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a system and method for treating laundry with ozone, particularly adaptable to commercial washing machines. In this embodiment, an in-line ozone treatment system is integrated directly into the water supply line of one or more commercial washing machine. The laundry treatment system includes an oxygen concentrator (10), ozone generator (4), a circulation pump (16) or motor, a venturi system (13), dual solenoid system (7 & 19), circulation tank (18), ozone destructor (20), one or more washers (1, 2, 3), an IOT device (5), a timer switch, a pressure switch (15), and an accumulator (6). The ozone generator (4) produces ozone gas, and the control unit regulates the ozone concentration based on the specific laundry load and washing parameters. The generated ozone is then injected into the water supply line through a mixing chamber or contact tank (18), creating ozonated water in real-time during the washing process.
In a further embodiment, the present invention incorporates a dual-stage ozone treatment system. This system includes an initial ozone injection stage, similar to the in-line system, where ozone is introduced directly into the water supply line of the washing machine. Additionally, a secondary treatment stage involves a mixing tank where further ozone infusion occurs. The control unit optimizes the ozone concentration at both stages based on the laundry load and washing parameters, ensuring an effective and adaptive ozone treatment throughout the washing process.
This embodiment of the present invention focuses on a variable flow ozone treatment system. The system includes an ozone generator, a control unit, and a variable flow mechanism in the water supply line. The control unit dynamically adjusts the flow rate of ozone into the washing machine based on the specific laundry load and cycle requirements. This allows for precise control over the ozone concentration, ensuring optimal treatment efficiency while conserving ozone gas and minimizing waste.
In yet another embodiment, the present invention discloses an integrated oxygen concentrator (10) and ozone generator (4). The oxygen concentrator (10) is designed to extract oxygen directly from the surrounding air, eliminating the need for external oxygen source. The extracted air is then directed to the ozone generator (4), where it undergoes a conversion process to produce ozone gas. The ozone generator (4) employed in this invention utilizes corona discharge technology, which is known for its efficiency in producing ozone. The capacity of the ozone generator (4) can be varied based on different parameters of the laundry process. Corona discharge ozone generator operates by passing dry air or oxygen through a high-voltage electric field, causing the oxygen molecules to dissociate into individual atoms. These atoms combine with other oxygen molecules to form ozone (O3). The ozone generator (4) injects generated ozone to contact tank (18) through micro bubbler (17).
The flexibility in ozone generator (4) capacity allows the system to adapt to various factors such as size of the laundry load, specific washing parameters, and the desired ozone concentration. This adaptability ensures that the ozone treatment is precisely tailored to the unique requirements of each laundry cycles, maximizing efficiency and effectiveness.
It yet another embodiment, the present invention discloses a motor-driven (16) ozone injection system. The system includes a circulation pump (16) that powers a venturi system (13), which efficiently draws generated ozone gas into the water supply line. The circulation pump (16) controls the overall system to adjust the ozone injection rate based on the laundry load and washing parameters. This motor-driven approach enhances precision and adaptability in ozone treatment, ensuring optimal performance during various laundry cycles.
In yet another embodiment, the present invention discloses a dual solenoid system (7 & 19) with distinct functions to prevent backflow of water into the ozone treatment system. Two types of solenoids are employed: one configured as always closed and the other as always open. These solenoids play a crucial role in maintaining the integrity of the system and ensuring that water flows in the intended direction. Furthermore, the solenoid system regulates the flow of ozone into the water supply line, responding to signals from the control unit.
The “always closed” solenoid (19) is strategically positioned in the water supply line, ensuring that it remains closed when the ozone treatment system is not actively injecting ozone into the water. This prevents any potential backflow of water into the system during periods of inactivity, preserving the purity of the ozone generation components.
Conversely, the “always open” solenoid (7) is placed strategically to allow continuous water flow during system operation. This solenoid ensures that water consistently moves through the system when ozone is being generated and injected into the washing machine. Together, this dual solenoid mechanism provides a robust solution for preventing backflow and maintaining the system’s operational integrity.
In yet another embodiment, the present invention discloses a circulation tank (18) configured to provide an additional stage for ozone-water mixing. The circulation tank (18) allows for extended contact time between ozone and water, enhancing the dissolution of ozone and ensuring a higher concentration of ozonated water before reaching the washing machine. This design contributes to increased treatment efficiency and effectiveness. The circulation tank is made up of stainless steel (SS), iron, aluminium, plastic, or alike providing durability and compatibility with the laundry treatment system components.
In yet another embodiment, the present invention discloses an ozone destructor (20) to remove the residual ozone. After the ozonized water has completed its treatment cycle, it passes through the ozone destructor, which neutralizes any remaining ozone before being discharged. This ensures that no ozone is released into the environment or the laundry area, providing a safe and environmentally friendly operation.
In yet another embodiment, the present invention discloses an IOT (Internet of Things) device (5) integrated within the ozone treatment system for remote monitoring and control of the ozone treatment system. Users can access the system through a dedicated application or web interface, allowing them to adjust settings, monitor ozone concentrations and receive alerts or notifications, thereby enhances user convenience and system management, especially in commercial settings with multiple washing machines (1, 2, 3).
In yet another embodiment, to optimize energy efficiency and adaptability, the laundry treatment system comprises a timer switch and a pressure switch (15). The timer switch allows users to schedule ozone treatment cycles during periods of lower energy demand, while the pressure switch ensures that the ozone injection is adjusted based on variations in water pressure, maintaining consistent treatment performance under different conditions.
In yet another embodiment, the present invention discloses an ozone accumulator (6) configured to store excess ozone during periods of low energy demand. The accumulator’s (6) collects and stores ozone gas when the ozone production rate exceeds the current requirements, providing a reserve that can be utilized during peak demand or high laundry loads. The accumulator (6) plays a strategic role in resource management, acting as a reservoir of ozone that can be tapped into during peak demand or high laundry loads. This stored ozone can be released when needed, ensuring a continuous and stable supply of ozone during times when the laundry system requires a higher concentration for effective treatment.
In yet another embodiment, the present invention introduces a feedback-controlled ozone treatment system. The system incorporates sensors and feedback mechanisms to continuously monitor the ozone concentration in the water and adjust the ozone generator output accordingly. This real-time feedback loop ensures that the ozone concentration remains within the desired range throughout the entire washing process, adapting to changing conditions and variations in laundry loads.
In yet another embodiment, the laundry treatment system of the present invention is integrated directly into the water supply line of a commercial washing machine. The direct integration into the water supply line streamlines the ozone treatment process within the existing infrastructure of commercial washing machines. This integration offers a practical and space-efficient solution, minimizing the need for additional equipment or complex setups. Furthermore, the seamless integration allows for easy retrofitting into existing commercial washing machines, making it a versatile and adaptable solution for various laundry setups.
ADVANTAGES OF THE PRESENT INVENTION
1. The system optimizes the use of chemical detergents by utilizing ozonated water. This leads to the creation of froth with the same cleaning efficacy using almost 50% less chemical detergent. This efficiency contributes to cost savings and reduces the environmental impact associated with chemical usage.
2. The adoption of ozonated water in the laundry process helps in lowering COD values (Chemical Oxygen Demand). Ozone, being a powerful oxidizing agent, aids in reducing the environmental impact of wastewater by breaking down pollutants effectively.
3. The reduction in lint collection due to the use of fewer chemicals contributes to an extended life for the linen. This advantage is particularly crucial in commercial laundry operations, where linen replacement costs can be significant.
4. The system's ability to use less water due to reduced chemical requirements translates to resource efficiency. With lesser water consumption, there is also a reduction in the time required for washing. This not only contributes to environmental conservation but also increases overall operational efficiency.
5. As a consequence of using less chemical, the system requires less water and shorter washing cycles. This directly translates to energy savings, reducing electricity consumption during the laundry process. The efficient use of resources aligns with sustainability goals and reduces operational costs.
6. The application promotes sustainability in laundry practices by minimizing the environmental impact of chemical usage, conserving water, and reducing energy consumption. This aligns with global efforts towards eco-friendly and sustainable business operations. , C , Claims:1. An IOT enabled laundry treatment system for commercial washing machines, comprising:
a. an oxygen concentrator (10) in connection with an ozone generator (4) to extract oxygen directly from the surrounding air and transmit it to ozone generator (4) to produce ozone gas;
b. a circulation pump (16) driving venturi system (13) for efficient ozone injection and circulation;
c. a circulation tank (18) configured to provide an additional stage for ozone-water mixing, thereby enhancing ozone dissolution and ensuring a higher concentration of ozonated water before reaching the washing machine;
d. a dual solenoid system (7 & 9) with “always closed” and “always open” for preventing backflow;
e. an ozone destructor (20) configured to neutralizing residual ozone in ozonated water before discharge for safety during discharge;
f. one or more washer (1, 2, 3) connected to the laundry treatment system; and
g. an ozone accumulator (6) to collect excess ozonated water for controller supply of ozone water to connected washing machines,
Wherein, the IOT device (5) facilitates remote monitoring and control of ozone treatment system, thereby providing users with real-time insights into system functionality.

2. The IOT enabled laundry treatment system as claimed in claim 1, wherein the oxygen generator (4) utilizes corona discharge technology to operates by passing dry air or oxygen through a high-voltage electric field, causing the oxygen molecules to dissociate into individual atoms, thereby these atoms combine with other oxygen molecules to form ozone (O3).

3. The IOT enabled laundry treatment system as claimed in claim 1, wherein the corona discharge ozone generator’s capacity is variable based on laundry parameters such as load size, washing parameters, and desired ozone concentration.

4. The IOT enabled laundry treatment system as claimed in claim 1, wherein the system further comprises a dual-stage ozone treatment system with an initial ozone injection stage integrated into the water supply line, a secondary treatment stage with a mixing tank for additional ozone infusion, and a control unit optimizing ozone concentration at both stages based on laundry load and washing parameters.

5. The IOT enabled laundry treatment system as claimed in claim 1, wherein the IOT enabled ozone accumulator monitors the ozone production rate and controls the accumulator to store excess ozone during periods of low energy demand, providing a reserve that can be utilized during peak demand or high laundry loads.
6. The IOT enabled laundry treatment system as claimed in claim 1, wherein the system is integrated directly into the water supply line of a commercial washing machine, streamlining the ozone treatment process within existing infrastructure.

7. The IOT enabled laundry treatment system as claimed in claim 1, wherein the system further comprises a timer switch and pressure switch in conjunction with the IOT system, wherein said timer switch allows users to schedule ozone treatment cycles during periods of lower energy demand, and said pressure switch ensures that the ozone injection is adjusted based on variations in water pressure, maintaining consistent treatment performance under different conditions.
8. The IOT enabled laundry treatment system as claimed in claim 1, wherein the IOT system enables users to adjust ozone treatment settings, monitor ozone concentrations, receive alerts, and notifications, thereby enhancing user convenience and facilitating efficient system management in commercial settings with multiple washing machines.
9. The IOT enabled laundry treatment system as claimed in claim 1, wherein the IOT system provides an adaptive and energy-efficient ozone treatment by integrating data from the timer switch and pressure switch, optimizing the overall system performance in response to varying operational conditions.