Reverse osmosis pure water treatment device

Abstract

The utility model belongs to the technical field of pure water treatment, and particularly relates to a reverse osmosis pure water treatment device. Comprising a water pump, a pipeline, a pressure switch, an activated carbon filtering tank, a security filter, a water feeding pump and a reverse osmosis membrane filter, the water pump is communicated with the activated carbon filtering tank through a pipeline, the activated carbon filtering tank is communicated with the security filter through a pipeline, the security filter is communicated with the water feeding pump through a pipeline, and a pressure switch is arranged on the pipeline between the security filter and the water feeding pump. And the reverse osmosis membrane filter discharges the treated water through a pipeline. According to the utility model, the activated carbon filtering tank, the security filter and the reverse osmosis membrane filter are used for completing multi-stage filtration of water so as to produce high-quality drinking water, and meanwhile, the pressure switch is used for controlling water in a standard pressure range to enter the reverse osmosis membrane filter, so that the normal work of the reverse osmosis membrane filter is ensured; the purification efficiency of the drinking water is improved.

Description

Technical Field

[0001] This utility model belongs to the field of pure water treatment technology, specifically relating to a reverse osmosis pure water treatment device. Background Technology

[0002] In modern life and industrial applications, the demand for high-quality drinking water is increasing daily. Traditional water purification technologies such as sand filtration and simple activated carbon filtration are no longer sufficient to meet current requirements for water purity. Reverse osmosis (RO) technology has become the mainstream choice in the field of pure water treatment due to its superior purification capabilities and wide applicability. However, existing RO pure water treatment devices have some design limitations that affect the final water quality and system reliability. Many existing RO pure water treatment devices use only a single activated carbon filter tank and a reverse osmosis membrane filter. While this configuration can improve water quality to some extent, its filtration effect is not thorough under complex and variable water source conditions, especially when there are high concentrations of organic matter, heavy metal ions, and microbial contamination. It cannot ensure that the produced water reaches a high standard of purity. When there is only one activated carbon filter tank or RO membrane in the system, if this component fails or needs maintenance or replacement, the operation of the entire system will be affected, potentially leading to water supply interruptions or a decline in output water quality, reducing the system's reliability and continuity. The efficiency and lifespan of the reverse osmosis membrane largely depend on whether the inlet water pressure is stable and appropriate. Excessive pressure may damage the RO membrane, while excessively low pressure will affect the water production and purification effect. Some existing devices fail to provide an effective pressure monitoring mechanism, causing the RO membrane to operate in a suboptimal state for extended periods, which in turn affects the overall purification efficiency.

[0003] Chinese patent CN209721750U discloses a reverse osmosis water purifier, comprising an inlet solenoid valve, a pump, a reverse osmosis filter, and a water outlet faucet arranged sequentially in the water flow direction. A wastewater pipeline connects the raw water side and wastewater outlet of the reverse osmosis filter, and a flushing solenoid valve is installed on the wastewater pipeline. A three-way solenoid valve is connected to the pure water side of the reverse osmosis filter. The inlet of the three-way solenoid valve is connected to the pure water outlet of the reverse osmosis filter, the first port of the outlet of the three-way solenoid valve is connected to the water outlet faucet, and the second port of the outlet is connected to the wastewater outlet. This device cannot adjust the inlet pressure of the reverse osmosis device, which can easily damage the reverse osmosis device, or reduce its working efficiency due to insufficient pressure. Therefore, there is an urgent need for those skilled in the art to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is that, in the above-mentioned prior art, it is impossible to control the inlet water pressure of the reverse osmosis membrane filter. If the inlet water pressure is too high, it will damage the reverse osmosis membrane filter, and if the inlet water pressure is too low, it will result in low working efficiency of the reverse osmosis membrane.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A reverse osmosis pure water treatment device includes a water pump, pipelines, an activated carbon filter tank, a security filter, a pressure switch, a water delivery pump, a reverse osmosis membrane filter, and pipelines; the water pump is connected to the activated carbon filter tank via pipelines, the activated carbon filter tank is connected to the security filter via pipelines, the security filter is connected to the water delivery pump via pipelines, the pressure switch is installed on the pipeline between the security filter and the water delivery pump, and the water delivery pump is connected to the reverse osmosis membrane filter via pipelines.

[0007] By adopting the above technical solution, and sequentially setting up a water pump, activated carbon filter tank, security filter, and reverse osmosis membrane filter, this device achieves multi-stage purification of the water source. First, the activated carbon filter tank effectively removes organic matter, residual chlorine, odors, and other large molecular contaminants from the water. Next, the security filter further intercepts any small particles that may damage the RO membrane, ensuring that only finely filtered water can enter the subsequent reverse osmosis stage. This design significantly improves the quality of the final product water. The pressure switch installed on the pipeline between the security filter and the water pump plays a crucial role. It ensures that water is allowed to flow into the reverse osmosis membrane filter only when the inlet pressure is within the set safe range. This not only helps protect the expensive and sensitive RO membrane from excessively high or low pressure, extending its service life, but also maintains stable system operation, avoiding malfunctions or performance degradation caused by pressure fluctuations. The reasonable component layout and connection method make the entire system's workflow smoother. From the water pump to the final reverse osmosis membrane filter, each link is closely connected and works collaboratively, thus ensuring a highly efficient and stable water treatment process.

[0008] Furthermore, the water pump is a horizontal centrifugal pump, a pressure gauge is installed in the pipeline between the water pump and the activated carbon filter tank, a control valve is installed on the activated carbon filter tank, and two activated carbon filter tanks are provided in total, which are connected by a pipeline.

[0009] By adopting the above technical solution, the horizontal centrifugal pump features a compact structure, high efficiency, and low energy consumption, providing a stable and sufficient inlet water pressure for the entire pure water treatment system. Its design ensures excellent performance during long-term operation, reducing maintenance costs. Due to its horizontal design, the pump occupies less space, facilitating installation in limited areas and contributing to a reduction in the overall system size. A pressure gauge positioned between the pump and the activated carbon filter tank monitors the inlet water pressure in real time, ensuring the water flow entering subsequent treatment stages is at its optimal operating condition. This helps protect downstream equipment from excessively high or low pressures and also facilitates the timely detection and resolution of potential water supply problems. Precise pressure control ensures a moderate water flow velocity within the activated carbon filter tank, preventing both excessively high flow rates that could affect adsorption and excessively low flow rates that would lead to low treatment efficiency. The control valve allows operators to adjust the water volume and flow rate through the activated carbon filter tank according to actual conditions, adapting to different water quality conditions or treatment requirements. This is crucial for maintaining stable purification results, especially when facing significant fluctuations in water quality. When cleaning, media replacement, or maintenance of the activated carbon filter is required, the corresponding filter can be easily isolated by closing the control valve without stopping the entire system. Using two activated carbon filter canisters in series provides double protection, further enhancing the removal of organic matter, residual chlorine, and other pollutants. After the first filter canister initially removes larger particles, the second canister can focus more on removing finer impurities, thereby improving overall purification efficiency.

[0010] Furthermore, a pressure gauge is installed on the top of the security filter, and the water pump is a vertical centrifugal pump.

[0011] By adopting the above technical solution, a pressure gauge installed on top of the security filter can monitor the pre-treated water pressure in real time. This helps to understand the working status of the security filter, ensuring its effective interception of large particles and protecting the downstream reverse osmosis membrane from damage. When the pressure reading on the gauge rises abnormally, it may mean that the filter element inside the security filter is clogged and needs to be cleaned or replaced in time. Early detection and resolution of problems can avoid system failures or water quality degradation caused by filter failure. By precisely controlling the water flow pressure entering the security filter, a moderate water flow rate can be ensured, neither too fast to affect the filtration effect nor too slow to cause low treatment efficiency. At the same time, appropriate inlet water pressure also helps to improve the desalination efficiency of the subsequent RO membrane. Vertical centrifugal pumps occupy less space than horizontal designs, making them particularly suitable for installation environments with limited space. Their vertical structure makes installation simpler and reduces the requirements for site layout. Vertical centrifugal pumps are typically designed with lower noise levels and less vibration, which not only improves the environmental quality during equipment operation but also reduces the impact on surrounding facilities and improves the overall reliability of the system.

[0012] Furthermore, a one-way valve is installed on the pipeline between the water pump and the reverse osmosis membrane filter. There are two reverse osmosis membrane filters in total, and the two adjacent reverse osmosis membrane filters are connected by a pipeline.

[0013] By adopting the above technical solution, the main function of the check valve is to ensure that water flows only in one direction, from the feed pump to the reverse osmosis membrane filter. This effectively prevents treated water or concentrate from flowing back to the feed pump side when the system stops or pressure fluctuates, protecting the pump and other pre-processing components from contamination or damage. When the system stops operating or is being maintained, the check valve can prevent high-pressure water backflow from the other side of the reverse osmosis membrane, avoiding physical damage to the RO membrane and extending its service life. The check valve helps maintain stable pressure between the feed pump and the reverse osmosis membrane filter, especially during start-up or shutdown, reducing pressure shocks and ensuring smooth system operation. Two reverse osmosis membrane filters working in parallel can process more water in the same amount of time, thereby increasing the overall water production. Simultaneously, dual RO membrane treatment can further remove trace residues, providing higher quality pure water. Even if one RO membrane requires maintenance, cleaning, or replacement, the other RO membrane can continue to operate, ensuring that the system does not completely shut down due to a single component failure. This redundant design greatly improves the reliability and continuity of the system and reduces downtime.

[0014] Furthermore, the reverse osmosis membrane filter is provided with a water outlet pipe at the bottom, and the water outlet pipe is connected to an external water storage device.

[0015] By adopting the above technical solution, and directly connecting the outlet of the reverse osmosis membrane filter to an external water storage device (such as a pressure tank), the pressure of the output water can be stabilized using the storage device. This design helps maintain the stability of the water supply system under different water demands, avoiding water pressure fluctuations caused by instantaneous changes in water consumption. The external water storage device can provide a large amount of treated pure water in a short time to meet users' sudden increases in water demand. This is especially suitable for peak water consumption periods that may occur in home, office, or industrial environments. Since a certain amount of pure water is already stored in the water storage device, users do not need to wait for a new water treatment cycle to complete to obtain the required water volume, improving the overall system response speed and user experience. The design of connecting the outlet pipe to the external water storage device allows for more flexible equipment layout, eliminating the need to install the water storage device adjacent to the reverse osmosis membrane filter, thus better adapting to different installation environments and space constraints.

[0016] Furthermore, the opening threshold of the pressure switch is 1 bar to 5.5 bar.

[0017] By adopting the above technical solution and setting the upper limit of the pressure switch to 5.5 bar, physical damage to the reverse osmosis membrane caused by excessive inlet water pressure can be effectively avoided. Excessive pressure not only shortens the service life of the RO membrane but may also lead to membrane rupture or performance degradation, affecting water purification efficiency. Setting the lower limit to 1 bar ensures that the water entering the reverse osmosis membrane has sufficient pressure to maintain the normal filtration process.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model ensures that the water pressure entering the reverse osmosis membrane filter is within a safe range by installing a pressure switch on the pipeline between the security filter and the water pump and setting the opening threshold to 1 bar-5.5 bar. This not only prevents damage to the reverse osmosis membrane filter caused by excessive pressure, but also ensures sufficient inlet water pressure to maintain an efficient desalination and purification process;

[0020] 2. The two working reverse osmosis membrane filters of this utility model improve filtration efficiency and provide redundant support. Even if one needs maintenance or filter replacement, the other can continue to work, ensuring that the system will not be completely shut down due to the failure of a single component, thus improving the overall reliability and continuity.

[0021] 3. By connecting to an external water storage device, this utility model can provide a large amount of treated pure water in a short time to meet the user's water needs. At the same time, it allows for a more flexible equipment layout to adapt to different installation environments and space constraints. Precise pressure control reduces the frequency of failures caused by abnormal pressure, reduces the workload and cost of daily maintenance, and the reasonable design ensures that each component works in its optimal state, improving the overall efficiency of the system and the user experience. Attached Figure Description

[0022] Figure 1 This is the front view of the present invention;

[0023] Figure 2 This is a rear view of the present invention;

[0024] Figure 3 This utility model Figure 2 Enlarged schematic diagram of part A in the middle.

[0025] Among them, 1-pipeline; 11-outlet pipe; 2-water pump; 3-activated carbon filter tank; 31-control valve; 4-security filter; 5-pressure switch; 6-water pump; 7-reverse osmosis membrane filter; 8-pressure gauge; 9-check valve. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

[0027] In the description of this utility model, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of this utility model. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the protection scope of this utility model.

[0028] like Figure 1 , Figure 2 and Figure 3As shown, a reverse osmosis pure water treatment device includes a horizontal centrifugal pump 2, which is connected to an activated carbon filter tank 3 via a pipe 1. A pressure gauge 8 is installed in the pipe 1 between the pump 2 and the activated carbon filter tank 3 to monitor the inlet water pressure in real time, ensuring that the water flow entering the subsequent treatment stage is in optimal working condition. Two activated carbon filter tanks 3 are provided, connected by the pipe 1. Each activated carbon filter tank 3 is equipped with a control valve 31 for adjusting the water flow rate and facilitating maintenance. After preliminary filtration, the two activated carbon filter tanks 3 are connected to a security filter 4 via the pipe 1 to further intercept small particulate matter that may damage the RO membrane.

[0029] A pressure gauge 8 is installed at the top of the security filter 4 to monitor the water pressure after pretreatment in real time, ensuring effective interception of large particles and protecting the downstream reverse osmosis membrane from damage. The security filter 4 is connected to the water supply pump 6 via pipe 1, and a pressure switch 5 is installed on pipe 1 between the security filter 4 and the water supply pump 6 to control the water pressure entering the reverse osmosis membrane filter 7, maintaining it within a safe range of 1 bar to 5.5 bar, preventing excessively high or low pressure from affecting the RO membrane's efficiency and lifespan. The water supply pump 6 is a vertical centrifugal pump, connected to the reverse osmosis membrane filter 7 via pipe 1, and a check valve 9 is installed on pipe 1 between the water supply pump 6 and the reverse osmosis membrane filter 7 to prevent backflow and protect the system safety.

[0030] Two reverse osmosis membrane filters 7 are installed, and adjacent filters are connected by pipe 1 to form a redundant design to improve the reliability and continuity of the system. Even if one RO membrane needs maintenance or filter replacement, the other can continue to operate, ensuring that the system will not completely shut down due to the failure of a single component. The bottom of the outer reverse osmosis membrane filter 7 is equipped with an outlet pipe 11, which connects to an external water storage device to ensure that the treated purified water can be stably stored and readily available to users.

[0031] Working Principle: Specifically, pump 2, acting as the system's starting point, is a horizontal centrifugal pump responsible for drawing untreated raw water from the water source and transporting it to activated carbon filter tank 3 via pipeline 1. A pressure gauge 8 is installed in pipeline 1 between pump 2 and activated carbon filter tank 3 to monitor the inlet water pressure in real time, ensuring that the water flow entering subsequent treatment stages is in optimal working condition. Two activated carbon filter tanks 3 are provided, connected by pipeline 1. Each activated carbon filter tank 3 is equipped with a control valve 31 for adjusting the water flow rate and facilitating maintenance. The main function of the activated carbon filter tank is to remove organic matter, residual chlorine, odors, and other large molecular pollutants from the water, providing a cleaner water source for subsequent treatment.

[0032] After initial filtration, the water flows through pipe 1 into the security filter 4. A pressure gauge 8 is installed at the top of the security filter to monitor the pre-treated water pressure in real time, ensuring effective interception of large particles and protecting the downstream reverse osmosis membrane from damage. The security filter further intercepts small particles that could damage the reverse osmosis membrane filter 7, ensuring that only finely filtered water can enter the subsequent reverse osmosis stages.

[0033] The security filter 4 is connected to the water supply pump 6 via pipe 1, and a pressure switch 5 is installed on pipe 1 between the security filter 4 and the water supply pump 6. This pressure switch controls the water pressure entering the reverse osmosis membrane filter 7, maintaining it within a safe range of 1 bar to 5.5 bar to prevent excessively high or low pressure from affecting the working efficiency and lifespan of the reverse osmosis membrane filter 7. The water supply pump 6 is a vertical centrifugal pump that delivers water to the reverse osmosis membrane filter 7 via pipe 1. A one-way valve 9 is installed on pipe 1 between the water supply pump 6 and the reverse osmosis membrane filter 7 to prevent backflow and protect the system safety.

[0034] Two reverse osmosis membrane filters 7 are installed, connected by a pipe 1 to form a redundant design to improve system reliability and continuity. Even if one reverse osmosis membrane filter 7 requires maintenance or filter cartridge replacement, the other can continue to operate, ensuring that the system will not completely shut down due to the failure of a single component. The reverse osmosis membrane filter 7 uses high pressure to force water molecules through a semi-permeable membrane, while most dissolved salts, heavy metals, bacteria, viruses, and other tiny particles are blocked, thus achieving highly efficient desalination and purification.

[0035] Finally, the bottom of the outer reverse osmosis membrane filter 7 is equipped with water outlet pipes 11, which connect to an external water storage device to ensure that the treated purified water can be stably stored and readily available to users. This design not only improves the water purification effect but also enhances the system's reliability and user experience, providing a high-quality drinking water solution.

[0036] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A reverse osmosis pure water treatment device, characterized by: It comprises a water pump (2), a pipeline (1), an activated carbon filter tank (3), a security filter (4), a pressure switch (5), a water pump (6), a reverse osmosis membrane filter (7) and a pipeline (1); the water pump (2) is communicated with the activated carbon filter tank (3) through the pipeline (1), the activated carbon filter tank (3) is communicated with the security filter (4) through the pipeline (1), the security filter (4) is communicated with the water pump (6) through the pipeline (1), the pressure switch (5) is arranged on the pipeline (1) between the security filter (4) and the water pump (6), and the water pump (6) is communicated with the reverse osmosis membrane filter (7) through the pipeline (1).

2. The reverse osmosis pure water treatment device according to claim 1, characterized by: The water pump (2) is a horizontal centrifugal pump, a pressure gauge (8) is arranged in the pipeline (1) between the water pump (2) and the activated carbon filter tank, a control valve (31) is arranged on the activated carbon filter tank (3), and two activated carbon filter tanks are arranged.

3. The reverse osmosis pure water treatment device according to claim 2, characterized in that: A pressure gauge (8) is arranged on the top of the security filter (4), and the water pump (6) is a vertical centrifugal pump.

4. The reverse osmosis pure water treatment device according to claim 3, characterized in that: A one-way valve (9) is arranged on the pipeline (1) between the water pump (6) and the reverse osmosis membrane filter (7), two reverse osmosis membrane filters (7) are arranged, and adjacent two reverse osmosis membrane filters (7) are communicated through the pipeline (1).

5. The reverse osmosis pure water treatment device according to claim 4, characterized in that: The reverse osmosis membrane filter is provided with a water outlet pipeline (11) at the bottom, and the water outlet pipeline (11) is communicated with an external water storage device.

6. The reverse osmosis pure water treatment device according to claim 1, characterized in that: The opening threshold of the pressure switch (5) is 1bar-5.5bar.

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