Inbuilt pressure tank single water RO machine

Abstract

This utility model relates to a single-water RO machine with a built-in pressure tank, belonging to the technical field of water purification equipment. It includes a frame, an inlet connector, an outlet connector, and a wastewater connector. The inlet connector, outlet connector, and wastewater connector are located at the rear end of the frame. An RO membrane filter element is installed inside the frame. A wastewater solenoid valve is installed between the lower part of the RO membrane filter element and the wastewater connector. A composite filter element is installed between the RO membrane filter element and the inlet connector. An inlet solenoid valve connected to the RO membrane filter element and the composite filter element is located at the lower end of the composite filter element. A post-carbon filter element connected to the outlet connector and the RO membrane filter element is installed on the side of the RO membrane filter element. A pressure tank connected to the upper end of the post-carbon filter element is located between the RO membrane filter element and the composite filter element. It features a compact structure, convenient assembly and disassembly, and good operational stability. The composite filter element, RO membrane filter element, and post-carbon filter element work together to ensure efficient filtration and pure water supply.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, specifically to a single-water RO machine with a built-in pressure tank. Background Technology

[0002] An RO (reverse osmosis) water purifier, also known as a reverse osmosis water purifier, is a device that integrates microfiltration, adsorption, ultrafiltration, reverse osmosis, ultraviolet sterilization, and ultrapurification technologies to directly convert tap water into ultrapure water. The core component of a reverse osmosis water purifier is the reverse osmosis (RO) membrane. The purified water produced by a reverse osmosis water purifier is fresher, more hygienic, and safer than bottled water.

[0003] Reverse osmosis is a process that uses pressure higher than osmotic pressure as the driving force and the selective permeability of a membrane that allows only water to pass through while blocking solutes, separating water molecules from the solute phase in a water body. Reverse osmosis water purifiers are machines that primarily use the reverse osmosis principle for water treatment. The filter cartridges in these purifiers are consumable parts and must be replaced after a certain period of time.

[0004] As disclosed in the prior art (application number: CN202321710568.3), a stainless steel reverse osmosis water purifier with easy filter replacement includes a body. A second chamber is formed on the inner surface of the lower end of the body. A dual-axis motor is fixedly installed at the middle of the bottom of the second chamber. Second gears are provided on both sides of the dual-axis motor. Lifting grooves are formed on the inner surfaces of the lower ends of both sides of the body. When the filter body needs to be replaced, the dual-axis motor is activated via an external controller. The dual-axis motor drives the second gear to rotate, which in turn drives the first gear to rotate. The first gear drives the threaded rod to rotate, and the threaded rod drives the lifting plate downwards via a lifting block. The lifting plate then drives the base downwards. However, the prior art lacks a pressure tank structure to ensure stable water pressure during the operation of the reverse osmosis water purifier. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a single-water RO machine with a built-in pressure tank. It features a compact structure, convenient assembly and disassembly, and good operational stability. The composite filter element, RO membrane filter element, and post-carbon filter element work together to ensure efficient filtration and pure water supply.

[0006] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions:

[0007] A single-water RO machine with a built-in pressure tank includes a frame, a pressure tank is provided inside the frame, and an RO membrane filter, a composite filter and a post-carbon filter are provided on the side of the pressure tank and connected by a phase pipeline. The RO membrane filter, pressure tank, composite filter and post-carbon filter are controlled by a PLC panel and are built into the frame.

[0008] The composite filter cartridge, composed of polypropylene and carbon rods, is used for the initial filtration of suspended solids and organic matter in the water. The RO membrane filter cartridge is the core filtration element, responsible for removing impurities and contaminants from the water. The post-carbon filter cartridge further improves the taste of the purified water. The pressure tank stores the filtered purified water for convenient use at any time.

[0009] Preferably, the frame is provided with an inlet connector, an outlet connector, and a wastewater connector. A wastewater solenoid valve is provided between the lower part of the RO membrane filter element and the wastewater connector. The composite filter element is located between the RO membrane filter element and the inlet connector. The lower end of the composite filter element is provided with an inlet solenoid valve that is connected to the RO membrane filter element and the composite filter element via pipeline. The post-carbon filter element is connected to the outlet connector and the RO membrane filter element via pipeline. The pressure tank is located between the RO membrane filter element and the composite filter element and is connected to the upper end of the post-carbon filter element via pipeline.

[0010] Preferably, the water inlet connector, water outlet connector, and wastewater connector are located at the rear end of the machine frame.

[0011] Preferably, the machine frame has a control panel at its front end, a rear cover at its rear end, side covers on both sides that are screwed to the machine frame, and a cover at its top that is screwed to the machine frame. The control panel is used to display and control the equipment's operating status. The rear cover, side covers, and cover are used to protect and enclose the internal structure of the equipment.

[0012] Preferably, a booster pump is provided between the control panel and the RO membrane filter element, and is connected to the RO membrane filter element and the inlet solenoid valve via pipeline. The booster pump is located above the wastewater solenoid valve and is fixed to the machine frame with screws. The booster pump provides sufficient pressure to the RO membrane filter element to ensure filtration efficiency.

[0013] Preferably, a T-joint is provided between the booster pump and the RO membrane filter element, and between the post-carbon filter element and the outlet water connector. A raw water TDS sensor, threadedly connected to the T-joint, is provided between the booster pump and the RO membrane filter element, and a pure water TDS sensor, threadedly connected to the T-joint, is provided between the post-carbon filter element and the outlet water connector. The raw water TDS sensor and the pure water TDS sensor respectively detect the total dissolved solids (TDS) concentration of the raw water and pure water.

[0014] Preferably, a high-pressure switch with a check valve is provided between the RO membrane filter element and the post-carbon filter element, and is connected to the pipeline of the RO membrane filter element and the post-carbon filter element. The high-pressure switch with a check valve prevents water backflow and protects the RO membrane filter element.

[0015] Preferably, the RO membrane filter, pressure tank, composite filter, and post-carbon filter are all detachable from the machine frame. The RO membrane filter and composite filter are inserted into the machine frame. The side of the post-carbon filter is provided with a buckle bracket that is snapped into the machine frame. The buckle bracket is fixed to the machine frame with screws. The pressure tank is inserted into the machine frame with screws.

[0016] Preferably, the composite filter element is a composite filtration structure composed of polypropylene and carbon rods.

[0017] This invention can achieve the following effects:

[0018] This invention provides a single-water RO machine with a built-in pressure tank, which, compared with existing technologies, features a compact structure, convenient assembly and disassembly, and good operational stability. The composite filter element, RO membrane filter element, and post-carbon filter element work together to ensure efficient filtration and pure water supply.

[0019] High-efficiency filtration: RO membrane filter cartridges can remove more than 99% of harmful substances in water, ensuring pure water quality.

[0020] Quick water dispensing: The pressure tank's storage function eliminates the need for users to wait for water to be produced, meeting their immediate water dispensing needs.

[0021] Intelligent control: Through the cooperation of solenoid valves, booster pumps and TDS detection sensors, the equipment can operate automatically, saving manpower.

[0022] Water-saving and environmentally friendly: The wastewater ratio is reasonable, which not only meets the filtration needs, but also reduces water waste.

[0023] Modular design: RO membrane filter, composite filter, post-carbon filter and other components can be disassembled and replaced, making maintenance convenient. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a three-dimensional structural diagram of the internal structure of this utility model.

[0026] Figure 3 This is a side view of the internal structure of this utility model.

[0027] Figure 4 This is a top view of the internal structure of this utility model.

[0028] In the diagram: 1. Control panel; 2. Machine cover; 3. RO membrane filter element; 4. Pressure tank; 5. Composite filter element; 6. Machine frame; 7. Rear sealing plate; 8. Inlet water connector; 9. Side cover; 10. Outlet water connector; 11. Wastewater connector; 12. T-connector; 13. Pure water TDS sensor; 14. Inlet solenoid valve; 15. High-pressure switch with check valve; 16. Wastewater solenoid valve; 17. Raw water TDS sensor; 18. Post-carbon filter element; 19. Booster pump; 20. Clip bracket. Detailed Implementation

[0029] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0030] Example: Figure 1-4As shown, a single-water RO machine with a built-in pressure tank includes a frame 6, an inlet connector 8, an outlet connector 10, and a wastewater connector 11. The inlet connector 8, outlet connector 10, and wastewater connector 11 are located at the rear end of the frame 6. A control panel 1 is located at the front end of the frame 6, and a rear sealing plate 7 is located at the rear end of the frame 6. Side covers 9, which are screwed to both sides of the frame 6, are located on both sides of the frame 6. A cover 2, which is screwed to the top of the frame 6, is located at the top end of the frame 6. An RO membrane filter element 3 is installed inside the frame 6. A wastewater solenoid valve 16 is installed between the lower part of the RO membrane filter element 3 and the wastewater connector 11. A composite filter element 5, which is a composite filtration structure composed of polypropylene and carbon rods, is installed between the RO membrane filter element 3 and the inlet connector 8. The lower end of the composite filter element 5 is equipped with an inlet solenoid valve 14 that connects to the RO membrane filter element 3 and the composite filter element 5 via pipeline. A booster pump 19, connected to the RO membrane filter element 3 and the inlet solenoid valve 14 via pipeline, is located between the control panel 1 and the RO membrane filter element 3. The booster pump 19 is located above the wastewater solenoid valve 16 and is fixed to the frame 6 with screws. A post-carbon filter element 18, connected to the outlet connector 10 and the RO membrane filter element 3 via pipeline, is located on the side of the RO membrane filter element 3. A high-pressure switch with a check valve 15, connected to the RO membrane filter element 3 and the post-carbon filter element 18 via pipeline, is located between the RO membrane filter element 3 and the post-carbon filter element 18. A pressure tank 4 is provided between the RO membrane filter element 3 and the composite filter element 5, which is connected to the upper end of the post-carbon filter element 18 via a pipeline. The RO membrane filter element 3, pressure tank 4, composite filter element 5, and post-carbon filter element 18 are all installed with a detachable structure to the machine frame 6. The RO membrane filter element 3 and composite filter element 5 are inserted into the machine frame 6. A buckle bracket 20 is provided between the side of the post-carbon filter element 18 and the machine frame 6, which is snapped into the machine frame 6. The buckle bracket 20 is fixed to the machine frame 6 with screws. The pressure tank 4 is inserted into the machine frame 6 with screws. A three-way pipe connector 12 is provided between the booster pump 19 and the RO membrane filter element 3, and between the post-carbon filter element 18 and the outlet connector 10. A raw water TDS detection sensor 17 is provided between the booster pump 19 and the RO membrane filter element 3, and is threadedly connected to the three-way pipe connector 12. A pure water TDS detection sensor 13 is provided between the post-carbon filter element 18 and the outlet connector 10, and is threadedly connected to the three-way pipe connector 12. The control panel 1 is electrically connected to the pure water TDS detection sensor 13, the inlet solenoid valve 14, the high-pressure switch with check valve 15, the wastewater solenoid valve 16, the raw water TDS detection sensor 17, and the booster pump 19.

[0031] Working principle: When the inlet solenoid valve 14 is opened, tap water enters through the inlet connector 8. The water flows through the composite filter element 5 for preliminary filtration, removing impurities such as sediment, rust, and residual chlorine. Next, the booster pump 19 provides pressure to the water flow, forcing it through the RO membrane filter element 3. The RO membrane filter element 3 then removes dissolved solids, bacteria, viruses, heavy metals, and other contaminants from the water under high pressure, retaining only water molecules and dissolved oxygen. The filtered purified water then enters the pressure tank 4 for storage and subsequent use.

[0032] When the wastewater solenoid valve 16 is opened, the wastewater at the bottom of the RO membrane filter element 3 is discharged from the wastewater connector 11.

[0033] When using water, turn on the tap. The air bladder inside the pressure tank 4 is compressed, releasing the stored purified water. The purified water passes through the post-carbon filter 18 to further improve its taste before flowing out from the water outlet 10. When the water level in the pressure tank 4 drops, the equipment will automatically start the water purification process to replenish the purified water.

[0034] In summary, this single-water RO machine with a built-in pressure tank features a compact structure, convenient assembly and disassembly, and good operational stability. The composite filter element, RO membrane filter element, and post-carbon filter element work together to ensure efficient filtration and pure water supply. With its advanced design and efficient filtration system, it can meet users' high demands for high-quality pure water, while also possessing advantages such as intelligence, water conservation, and environmental friendliness, making it a highly practical water treatment device.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A single-water RO machine with a built-in pressure tank, characterized in that: The machine includes a frame (6), a pressure tank (4) is provided inside the frame (6), and an RO membrane filter (3), a composite filter (5) and a post-carbon filter (18) connected by a phase pipeline are provided on the side of the pressure tank (4). The RO membrane filter (3), the pressure tank (4), the composite filter (5) and the post-carbon filter (18) are controlled by a PLC panel and are built into the frame (6).

2. The single-water RO machine with built-in pressure tank according to claim 1, characterized in that: The frame (6) is provided with an inlet connector (8), an outlet connector (10) and a wastewater connector (11). A wastewater solenoid valve (16) is provided between the lower part of the RO membrane filter (3) and the wastewater connector (11). The composite filter (5) is located between the RO membrane filter (3) and the inlet connector (8). The lower end of the composite filter (5) is provided with an inlet solenoid valve (14) that is connected to the pipeline of the RO membrane filter (3) and the composite filter (5). The post-carbon filter (18) is connected to the pipeline of the outlet connector (10) and the RO membrane filter (3). The pressure tank (4) is located between the RO membrane filter (3) and the composite filter (5) and is connected to the pipeline of the upper end of the post-carbon filter (18).

3. The single-water RO machine with built-in pressure tank according to claim 2, characterized in that: The inlet connector (8), outlet connector (10) and wastewater connector (11) are located at the rear end of the machine frame (6).

4. The single-water RO machine with built-in pressure tank according to claim 1, characterized in that: The front end of the frame (6) is provided with a control panel (1), the rear end of the frame (6) is provided with a rear sealing plate (7), the sides of the frame (6) are provided with side covers (9) connected to the frame (6) by screws, and the upper end of the frame (6) is provided with a cover (2) connected to the frame (6) by screws.

5. The single-water RO machine with built-in pressure tank according to claim 4, characterized in that: A booster pump (19) is provided between the control panel (1) and the RO membrane filter (3) and is connected to the RO membrane filter (3) and the inlet solenoid valve (14) via a pipeline. The booster pump (19) is located above the wastewater solenoid valve (16) and is fixed to the machine frame (6) with screws.

6. The single-water RO machine with built-in pressure tank according to claim 5, characterized in that: A three-way pipe joint (12) is provided between the booster pump (19) and the RO membrane filter (3), and between the post-carbon filter (18) and the outlet connector (10). A raw water TDS detection sensor (17) is provided between the booster pump (19) and the RO membrane filter (3) and is threadedly connected to the three-way pipe joint (12). A pure water TDS detection sensor (13) is provided between the post-carbon filter (18) and the outlet connector (10) and is threadedly connected to the three-way pipe joint (12).

7. The single-water RO machine with built-in pressure tank according to claim 1, characterized in that: A high-pressure switch with a check valve (15) is provided between the RO membrane filter (3) and the post-carbon filter (18) and is connected to the pipeline of the RO membrane filter (3) and the post-carbon filter (18).

8. The single-water RO machine with built-in pressure tank according to claim 1, characterized in that: The RO membrane filter (3), pressure tank (4), composite filter (5), and post-carbon filter (18) are all detachable from the frame (6). The RO membrane filter (3) and composite filter (5) are inserted into the frame (6). The side of the post-carbon filter (18) is provided with a buckle bracket (20) that is snapped into the frame (6). The buckle bracket (20) is screwed into the frame (6). The pressure tank (4) is inserted into the frame (6) and screwed into place.

9. The single-water RO machine with built-in pressure tank according to claim 1, characterized in that: The composite filter element (5) is a composite filter structure composed of polypropylene and carbon rods.

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