A reverse osmosis unit with no dead space in the water supply pipeline
By employing a dead-cavity-free design and intelligent backwashing control, the problems of water quality degradation and membrane damage in reverse osmosis units have been solved, achieving comprehensive water quality monitoring and a long membrane lifespan, thus improving the performance of the reverse osmosis unit.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG FEIYUE ENVIROMENTAL TECH CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-31
AI Technical Summary
The existing reverse osmosis unit has dead space in the water supply pipeline, which leads to water quality deterioration and bacterial growth, water quality testing is limited, and the reverse osmosis membrane is easily damaged.
The water supply pipeline adopts a dead-cavity-free design, combined with multi-parameter water quality detection and intelligent backwashing control. Through components such as booster pumps, push rod motors, sealing seats and sensors, it achieves full water circulation and precise backwashing.
It effectively avoids the formation of dead space, ensures the quality of the output water, enables comprehensive water quality monitoring, extends the service life of the reverse osmosis membrane, and improves the reliability and stability of the main unit.
Smart Images

Figure CN224578086U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reverse osmosis host technology, and in particular to a reverse osmosis host with no dead space in the water supply pipeline. Background Technology
[0002] Reverse osmosis technology, as a highly efficient water treatment method, is widely used in drinking water purification, industrial water treatment, and other fields. In existing reverse osmosis units, dead space in the water supply pipeline is a common problem. The presence of dead space prevents water from circulating sufficiently within the pipeline, making it easier for bacteria and microorganisms to grow, thus affecting the quality of the effluent and reducing the effectiveness and reliability of the reverse osmosis unit.
[0003] Meanwhile, existing reverse osmosis units have relatively simple water quality testing methods, which cannot comprehensively and accurately monitor water quality in real time. During the backwashing process of the reverse osmosis membrane module, there is a lack of effective water pressure detection and flow control mechanisms, which can easily damage the reverse osmosis membrane due to excessive water pressure, affecting the service life and performance of the reverse osmosis membrane module. Therefore, we propose a reverse osmosis unit with no dead space in the water supply pipeline to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a reverse osmosis unit with a dead-cavity-free water supply pipeline.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A reverse osmosis unit with a dead-cavity-free water supply pipeline includes a base. Multiple support frames are fixedly installed on the top of the base. Multiple placement seats are fixedly installed on the front and rear inner walls of the support frames, and a reverse osmosis membrane module is placed on each placement seat. A booster pump is installed on the top of the base. A water supply pipe is installed at the outlet of the booster pump. A three-way valve is installed at one end of the water supply pipe. A connecting pipe is installed between one outlet of the three-way valve and the reverse osmosis membrane module. A drain pipe for wastewater discharge is installed at the other outlet of the three-way valve. A testing box is installed on the top of the base. One outlet pipe connected to the testing box is installed at one end of the reverse osmosis membrane module. Another outlet pipe is installed on one side of the testing box. A water quality testing component for water quality testing is installed on the top inner wall of the testing box.
[0007] Optionally, a backwash pipe is installed on the other side of the testing box, and a flow valve is installed on the backwash pipe.
[0008] By adopting the above technical solution, the flow valve can adjust the backwash water flow rate in real time according to system feedback, accurately control the rinsing intensity, and avoid damage to the membrane element caused by excessive rinsing while ensuring the cleaning effect.
[0009] Optionally, a sealing seat one is slidably and sealed inside the testing box. A water guide hole is opened on the top of the sealing seat one. A sealing seat two is fixedly installed on the bottom inner wall of the testing box, and the sealing seat two is adapted to the water guide hole.
[0010] By adopting the above technical solution, the combination of sealing seat one and sealing seat two forms a double sealing structure, which can quickly switch the water flow path between normal water production and backwashing modes, ensuring the sealing and stability of the system operation.
[0011] Optionally, a push rod motor is fixedly installed on the top of the detection box, and the output shaft of the push rod motor is fixedly installed on the sealing seat.
[0012] By adopting the above technical solution, the push rod motor provides precise and controllable linear driving force, which shortens the movement response time of the sealing seat to the millisecond level, meeting the need for rapid switching of working modes.
[0013] Optionally, a positioning seat is fixedly installed on the top inner wall of the testing box, and the sealing seat is adapted to the positioning seat.
[0014] By adopting the above technical solution, the positioning seat provides precise positioning for the sealing seat one, thereby achieving the purpose of switching and closing the water outlet pipe two and the backwash pipe.
[0015] Optionally, a pressure sensor is installed on the top of the sealing seat 2, and a controller is installed on the front side of the detection box. The pressure sensor, push rod motor, and flow valve are all electrically connected to the controller.
[0016] By adopting the above technical solution, the pressure sensor collects backwash pressure data in real time, and the controller dynamically adjusts the opening of the flow valve and the stroke of the push rod motor based on the feedback signal, forming a closed-loop control system, which significantly improves the intelligence level of backwashing operation.
[0017] Optionally, the water quality detection component includes a conductivity sensor, a turbidity sensor, and a microbial sensor, all of which are electrically connected to the controller. An alarm is installed on the front of the detection box and is also electrically connected to the controller.
[0018] By adopting the above technical solution, the multi-parameter sensor array realizes full-dimensional water quality monitoring. When the detected value exceeds the preset threshold, the alarm immediately triggers an audible and visual alarm, and the controller automatically starts the emergency response program to control water quality risks at the outset.
[0019] The beneficial effects of this utility model are:
[0020] By combining booster pumps, reasonable pipeline design, and reverse osmosis membrane components, water is fully circulated within the water supply pipeline, effectively avoiding the formation of dead spaces, reducing the possibility of bacterial and microbial growth, and ensuring the quality of the effluent.
[0021] The water quality testing component includes multiple sensors, enabling real-time monitoring of water quality from various aspects. The test results are accurate and reliable, providing comprehensive data support for water quality monitoring, facilitating the timely detection of water quality problems and the implementation of corresponding measures.
[0022] The backwashing control mechanism is reasonably designed. Through the coordinated work of components such as the three-way valve, push rod motor, sealing seat, pressure sensor and solenoid valve, it can effectively backwash the reverse osmosis membrane module. At the same time, through pressure detection and flow regulation, it avoids damage to the reverse osmosis membrane due to excessive backwashing water pressure, extends the service life of the reverse osmosis membrane module and improves the reliability and stability of the reverse osmosis unit. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of a reverse osmosis unit with a dead-cavity-free water supply pipeline proposed in this utility model.
[0024] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of a reverse osmosis unit with a dead-cavity-free water supply pipeline proposed in this utility model.
[0025] Figure 3 This is a schematic diagram of part A of a reverse osmosis main unit with a dead-cavity-free water supply pipeline proposed in this utility model.
[0026] In the diagram: 101, base; 102, support frame; 103, placement seat; 104, reverse osmosis membrane module; 201, booster pump; 202, water supply pipe; 203, three-way valve; 204, connecting pipe; 205, drain pipe; 301, testing box; 302, outlet pipe one; 303, outlet pipe two; 4, water quality testing component; 501, positioning seat; 502, sealing seat one; 503, water guide hole; 504, sealing seat two; 505, pressure sensor; 506, push rod motor; 601, backwash pipe; 602, flow valve. Detailed Implementation
[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0028] This application discloses a reverse osmosis unit with no dead space in the water supply pipeline.
[0029] Reference Figure 1-3A reverse osmosis unit with a dead-cavity-free water supply pipeline includes a base 101. Multiple support frames 102 are fixedly mounted on the top of the base 101. Multiple placement seats 103 are fixedly mounted on the inner walls of the front and rear sides of the support frames 102, and reverse osmosis membrane modules 104 are placed on the corresponding placement seats 103. A booster pump 201 is mounted on the top of the base 101. A water supply pipe 202 is installed at the outlet of the booster pump 201. A three-way valve 203 is installed at one end of the water supply pipe 202, and one outlet of the three-way valve 203... A connecting pipe 204 is installed between the reverse osmosis membrane module 104 and the other outlet of the three-way valve 203 is equipped with a drain pipe 205 for discharging wastewater; a test box 301 is installed on the top of the base 101, an outlet pipe 302 connected to the test box 301 is installed at one end of the reverse osmosis membrane module 104, an outlet pipe 303 is installed on one side of the test box 301, and a water quality test component 4 for water quality testing is installed on the top inner wall of the test box 301. More specifically, the system piping adopts a 3D design.
[0030] In this embodiment, a backwash pipe 601 is installed on the other side of the detection box 301, and a flow valve 602 is installed on the backwash pipe.
[0031] In this embodiment, a sealing seat 502 is slidably and sealed inside the test box 301. A water guide hole 503 is provided on the top of the sealing seat 502. A sealing seat 504 is fixedly installed on the bottom inner wall of the test box 301, and the sealing seat 504 is adapted to the water guide hole 503.
[0032] In this embodiment, a push rod motor 506 is fixedly installed on the top of the detection box 301, and the output shaft of the push rod motor 506 is fixedly installed on the sealing seat 502.
[0033] In this embodiment, a positioning seat 501 is fixedly installed on the top inner wall of the detection box 301, and the sealing seat 502 is adapted to the positioning seat 501.
[0034] In this embodiment, a pressure sensor 505 is installed on the top of the sealing seat 504, and a controller is installed on the front side of the detection box 301. The pressure sensor 505, the push rod motor 506, and the flow valve 602 are all electrically connected to the controller.
[0035] In this embodiment, the water quality detection component 4 includes a conductivity sensor, a turbidity sensor, and a microbial sensor, and the conductivity sensor, turbidity sensor, and microbial sensor are all electrically connected to the controller.
[0036] In this embodiment, an alarm is installed on the front side of the detection box 301, and the alarm is also electrically connected to the controller.
[0037] The working principle of this utility model is as follows: A booster pump 201 pumps water through a supply pipe 202 and a connecting pipe 204 into a reverse osmosis membrane module 104. The reverse osmosis membrane module 104 filters the water, and the filtered water is discharged through outlet pipes 302 and 303. Simultaneously, a reasonable 3D pipeline design ensures sufficient water circulation within the supply pipeline, effectively preventing dead space formation, reducing the possibility of bacterial and microbial growth, and guaranteeing the quality of the output water. Since the water quality detection component 4 includes a conductivity sensor, a turbidity sensor, and a microbial sensor, it can perform real-time detection of water quality from multiple aspects, providing accurate and reliable results and comprehensive data support for water quality monitoring.
[0038] By rotating the valve stem of the three-way valve 203, the drain pipe 205 is connected to the connecting pipe 204. By starting the push rod motor 506, the push rod motor 506 can drive the sealing seat 1 502 to move upward and contact the positioning seat 501 through the output shaft. The movement of the sealing seat 1 502 can close the outlet pipe 2 303, and the movement of the sealing seat 1 502 can separate the sealing seat 2 504 from the water guide hole 503. At this time, the backwash pipe 601 is connected to the outlet pipe 1 302 through the water guide hole 503. When the reverse osmosis membrane module 104 is injected through the backwash pipe, the reverse osmosis membrane module 104 can be backwashed, and the sewage can be discharged through the drain pipe 205. The pressure sensor 505 can detect the backwash water pressure. When the water pressure is greater than the set value, the controller can control the flow valve 602 to adjust the flow of the backwash pipe 601 to avoid damage to the reverse osmosis membrane in the reverse osmosis membrane module 104 due to excessive flow.
[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A reverse osmosis unit with a dead-cavity-free water supply pipeline, characterized in that, Includes a base (101), on the top of which multiple support frames (102) are fixedly installed, and multiple placement seats (103) are fixedly installed on the front and rear inner walls of the support frames (102), with a reverse osmosis membrane assembly (104) placed on the corresponding placement seat (103). A booster pump (201) is installed on the top of the base (101). A water supply pipe (202) is installed on the outlet of the booster pump (201). A three-way valve (203) is installed at one end of the water supply pipe (202). A connecting pipe (204) is installed between one outlet of the three-way valve (203) and the reverse osmosis membrane module (104). A drain pipe (205) for discharging sewage is installed on the other outlet of the three-way valve (203). A test box (301) is installed on the top of the base (101). One end of the reverse osmosis membrane assembly (104) is connected to the test box (301) via a water outlet pipe (302). A second water outlet pipe (303) is installed on one side of the test box (301). A water quality testing assembly (4) for water quality testing is installed on the inner top wall of the test box (301).
2. The reverse osmosis unit with a dead-cavity-free water supply pipeline according to claim 1, characterized in that, A backwash pipe (601) is installed on the other side of the test box (301), and a flow valve (602) is installed on the backwash.
3. A reverse osmosis unit with a dead-cavity-free water supply pipeline according to claim 1, characterized in that, The test box (301) is equipped with a sliding sealing seat (502), and a water guide hole (503) is opened on the top of the sealing seat (502). A sealing seat (504) is fixedly installed on the bottom inner wall of the test box (301), and the sealing seat (504) is adapted to the water guide hole (503).
4. A reverse osmosis unit with a dead-cavity-free water supply pipeline according to claim 1, characterized in that, The top of the testing box (301) is fixedly installed with a push rod motor (506), and the output shaft of the push rod motor (506) is fixedly installed on the sealing seat (502).
5. A reverse osmosis unit with a dead-cavity-free water supply pipeline according to claim 1, characterized in that, A positioning seat (501) is fixedly installed on the top inner wall of the testing box (301), and the sealing seat (502) is adapted to the positioning seat (501).
6. A reverse osmosis unit with a dead-cavity-free water supply pipeline according to claim 3, characterized in that, A pressure sensor (505) is installed on the top of the sealing seat (504), and a controller is installed on the front side of the detection box (301). The pressure sensor (505), the push rod motor (506), and the flow valve (602) are all electrically connected to the controller.
7. A reverse osmosis unit with a dead-cavity-free water supply pipeline according to claim 1, characterized in that, The water quality detection component (4) includes a conductivity sensor, a turbidity sensor and a microbial sensor, and the conductivity sensor, turbidity sensor and microbial sensor are all electrically connected to the controller.
8. A reverse osmosis unit with a dead-cavity-free water supply pipeline according to claim 1, characterized in that, An alarm is installed on the front side of the detection box (301), and the alarm is also electrically connected to the controller.