Reverse osmosis device and water treatment system

Abstract

The utility model provides a reverse osmosis device and water treatment system, it includes pipeline subassembly and pretreatment subassembly, pretreatment subassembly includes pretreatment tank and first composite filter element, pipeline subassembly includes wastewater inlet pipeline, wastewater inlet pipeline is communicated with the pretreatment tank, wastewater inlet pipeline is communicated with the first composite filter element. The first composite filter element is arranged in the pretreatment tank and used for filtering water flowing through the pretreatment tank. The pipeline assembly guides the wastewater into the pretreatment system and further treatment stage, the wastewater is smoothly guided into the pretreatment tank by connecting a wastewater source and a wastewater inlet pipeline, and the first composite filter element is arranged in the pretreatment tank, so that the water quality can be primarily purified, and the content of pollutants and suspended particles is reduced. The composite filter element is used for preliminarily purifying wastewater, most pollutants and impurities can be filtered out through physical and chemical means, the water quality is improved, a foundation is laid for the subsequent reverse osmosis process, and therefore the number of subsequent filtering and purifying equipment or filtering procedures is reduced.

Description

Technical Field

[0001] This utility model relates to the field of water treatment, and in particular to a reverse osmosis device and a water treatment system. Background Technology

[0002] As people's demands for a better life increase, office buildings, schools, hospitals, and upscale residential communities generally install large-scale water treatment equipment. However, traditional equipment systems are too complex and bulky. Currently, the equipment on the market is mainly assembled, resulting in a large number of devices being stacked up, occupying a large area and being unsightly. It is difficult to operate a water treatment system in a small installation space. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of existing water treatment equipment that is difficult to operate in a small installation space, and to provide a reverse osmosis device and water treatment system.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A reverse osmosis device includes a piping assembly and a pretreatment assembly. The pretreatment assembly includes a pretreatment tank and a first composite filter element. The piping assembly includes a wastewater inlet pipe that is connected to the pretreatment tank. The first composite filter element is disposed inside the pretreatment tank to filter the water flowing through the pretreatment tank.

[0006] In this solution, the pipeline assembly guides wastewater into the pretreatment system and further treatment stages. The wastewater is smoothly introduced into the pretreatment tank via a wastewater inlet pipe connected to the wastewater source. The pretreatment tank is equipped with a first composite filter element, which can initially purify the water quality, reducing the content of pollutants and suspended particles. Using the composite filter element for preliminary wastewater purification can filter out most pollutants and impurities through physical and chemical means, improving water quality and laying the foundation for the subsequent reverse osmosis process, thereby reducing the number of subsequent filtration and purification devices or filtration procedures.

[0007] Preferably, the pretreatment tank is configured as one; and / or, the pretreatment assembly further includes at least two second composite filter elements, and the piping assembly further includes a pretreatment pipe, through which the at least two second composite filter elements are connected to the pretreatment tank.

[0008] In this solution, only one pretreatment tank is used, concentrating the initial filtration process of wastewater in a single container. This facilitates management and maintenance, and reduces equipment costs and space requirements. The first composite filter element, installed inside the pretreatment tank, provides initial purification of the water flowing through it, effectively reducing the content of pollutants and suspended particles. The addition of a second composite filter element further enhances the filtration effect, ensuring more thorough purification of the water before it enters the reverse osmosis stage.

[0009] Preferably, the reverse osmosis device further includes a balance tank and a water pump. The piping assembly includes a first water pipe, through which the outlet of the balance tank is connected to the pumping end of the water pump. The piping assembly also includes a pretreated water outlet pipe, which is connected to the outlet of the pretreated tank and the inlet of the balance tank to deliver liquid into the balance tank.

[0010] In this solution, the balancing water tank stores and regulates pre-treated water, while storing raw water treated by the pre-treatment tank and filter cartridge. This improves the stability of the water supply to the water pump, preventing it from running dry and enhancing its safety. It also improves the stability of the output water flow, enhancing the user experience and preventing low output water flow due to low raw water flow. The optimized water flow direction through the first water pipe further improves water treatment efficiency.

[0011] Preferably, the reverse osmosis device further includes a reverse osmosis membrane assembly and a valve assembly; the piping assembly further includes a second water pipe, the valve assembly includes a first ball valve, the inlet pipe of the reverse osmosis membrane assembly and the outlet pipe of the water pump are connected through the second water pipe, and the first ball valve is installed on the second water pipe.

[0012] In this solution, the reverse osmosis membrane module efficiently filters out tiny particles and dissolved impurities in the water, ensuring high water quality standards. The first ball valve in the valve assembly precisely controls the water flow through the second water pipe, achieving stable water flow and preventing excessive or insufficient water flow from affecting the system. The second water pipe connects the outlet pipe of the water pump to the inlet pipe of the reverse osmosis membrane module, allowing the pretreated water to smoothly enter the reverse osmosis membrane module for deep purification. By rationally designing the path of the second water pipe, water flow resistance and pressure drop are reduced, improving water delivery efficiency.

[0013] Preferably, the reverse osmosis membrane module includes a reverse osmosis membrane, a reverse osmosis tank, a cleaning channel, and a wastewater channel. Both the cleaning channel and the wastewater channel are located at the end of the reverse osmosis tank away from the wastewater inlet pipe. The reverse osmosis membrane is located inside the reverse osmosis tank and close to the end of the cleaning channel. The valve assembly includes a throttling valve and a drain solenoid valve. The throttling valve is located on the wastewater channel of the reverse osmosis membrane module to regulate the flow rate of wastewater, and the drain solenoid valve is located on the cleaning channel.

[0014] In this solution, the reverse osmosis membrane efficiently removes fine particles and dissolved impurities from the water, resulting in high-standard effluent. A cleaning channel and a wastewater channel are located at the end of the reverse osmosis tank furthest from the wastewater inlet pipe, used for cleaning the reverse osmosis membrane and discharging wastewater respectively, ensuring continuous and efficient system operation. A throttling valve regulates the wastewater flow rate, optimizing the reverse osmosis membrane's operating state and preventing excessive wastewater from affecting system performance. A drain solenoid valve is located on the cleaning channel to control the opening and closing of the drainage during the cleaning process, achieving high efficiency and automation of the cleaning process.

[0015] Preferably, the valve assembly further includes a second ball valve disposed on the first water pipe; and / or, the valve assembly further includes a third ball valve disposed on the wastewater inlet pipe.

[0016] In this solution, the second ball valve can precisely control the flow of water from the balance tank to the water-making pump, improving the stability of the water pressure entering the pump and optimizing the system's operating efficiency. In case of system maintenance or emergencies, the second ball valve can quickly close to cut off the water flow, facilitating operation and protecting the equipment. The third ball valve can control the flow rate of wastewater entering the pretreatment system, ensuring stable water flow during the pretreatment stage and improving the pretreatment effect.

[0017] Preferably, the reverse osmosis device further includes a water level sensor, which is located at the top of the balance tank to adjust the water level in the balance tank.

[0018] In this solution, the water level sensor monitors the water level in the balance tank in real time. When the water level reaches the set high or low limit, it automatically adjusts the water inlet or outlet to keep the water level in the tank within a suitable range, thereby improving the automation level of the system and reducing the need for manual operation.

[0019] Preferably, the reverse osmosis unit further includes a control box, which is located above the balance tank. The control box includes a first installed flow meter, a second flow meter, a third flow meter, a first pressure gauge, and a second pressure gauge, all mounted on its control panel. The first installed flow meter, the second flow meter, and the third flow meter are used to display the water flow rate. The first pressure gauge and the second pressure gauge are connected to the reverse osmosis membrane to display the pressure before the reverse osmosis membrane.

[0020] In this design, the control box is located above the balance tank, integrating various key measuring instruments for convenient centralized management and monitoring by operators. Utilizing the space above the balance tank effectively utilizes the overall structural space of the unit. The first, second, and third flow meters display the water flow rate at different stages of the system in real time, helping operators understand the system's operating status. A pressure gauge is connected to the reverse osmosis membrane to monitor its pressure, ensuring it operates at its optimal state and extending its lifespan.

[0021] Preferably, the reverse osmosis unit further includes a frame, which includes a base and a clamping part. A balance water tank is disposed on the first side of the base, a pretreatment tank is disposed on the second side of the base, and the reverse osmosis membrane assembly is disposed between the first and second sides.

[0022] In this design, the overall frame provides a robust support structure, ensuring stability of the entire device during operation, reducing vibration and displacement, and improving system reliability. The base and clamping section of the frame integrate all components into a compact, unified design, enhancing overall aesthetics and system integration. The balancing water tank is positioned on one side of the base, while the pretreatment tank is located on the other side, avoiding interference with other components and effectively utilizing the frame's space to reduce the system's footprint.

[0023] A water treatment system comprising a reverse osmosis unit as described above.

[0024] In this solution, the space utilization of the water treatment system is optimized by rationally designing and arranging the various components, especially the overall frame, reverse osmosis unit, and other auxiliary equipment.

[0025] The positive and progressive effects of this utility model are as follows:

[0026] The piping system guides wastewater into the pretreatment system and further treatment stages. Connecting to the wastewater source via the inlet pipe, the wastewater flows smoothly into the pretreatment tank. The pretreatment tank contains a first composite filter element, which initially purifies the water, reducing the content of pollutants and suspended particles. Using the composite filter element for initial wastewater purification removes most pollutants and impurities through physical and chemical means, improving water quality and laying the foundation for the subsequent reverse osmosis process, thereby reducing the number of subsequent filtration and purification devices or filtration procedures. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of a reverse osmosis device according to an embodiment of the present invention;

[0028] Figure 2 This is a front view of a reverse osmosis device according to an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100 Reverse Osmosis Unit

[0031] 110 pretreatment tank

[0032] 120 Second Composite Filter Cartridge

[0033] 130 Balance Water Tank

[0034] 140 water pump

[0035] 150 reverse osmosis membrane module

[0036] 153 Cleaning Channel

[0037] 154 Wastewater Channel

[0038] 160 control box

[0039] 161 First Installed Flow Meter

[0040] 162 Second installation flow meter

[0041] 163 Third Install Flow Meter

[0042] 164 First pressure gauge

[0043] 165 Second Pressure Gauge

[0044] 170 overall frame

[0045] 171 base

[0046] 172 clamping section

[0047] 173 First Side

[0048] 174 Second Side

[0049] 181 Wastewater Inlet Pipeline

[0050] 182 Pretreatment Pipeline

[0051] 183 First Water Pipe

[0052] 184 Pre-treated water outlet pipe

[0053] 185 Second Water Pipe

[0054] 191 First Ball Valve

[0055] 192 Second Ball Valve

[0056] 193 Third Ball Valve

[0057] 194 Throttle Valve

[0058] 195 drain solenoid valve

[0059] 200 Pure Water Tank Detailed Implementation

[0060] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0061] like Figure 1-2As shown, this embodiment provides a reverse osmosis device 100, which includes a pipeline assembly and a pretreatment assembly. The pretreatment assembly includes a pretreatment tank 110 and a first composite filter element. The pipeline assembly includes a wastewater inlet pipeline 181, which is connected to the pretreatment tank 110. The first composite filter element is disposed inside the pretreatment tank 110 to filter the water flowing through the pretreatment tank 110.

[0062] The piping assembly guides wastewater into the pretreatment system and further treatment stages. Wastewater is smoothly introduced into the pretreatment tank 110 via the wastewater inlet pipe 181, which is connected to the wastewater source. The pretreatment tank 110 is equipped with a first composite filter element, which can initially purify the water quality, reducing the content of pollutants and suspended particles. Using the composite filter element for preliminary wastewater purification can filter out most pollutants and impurities through physical and chemical means, improving water quality and laying the foundation for the subsequent reverse osmosis process, thereby reducing the number of subsequent filtration and purification devices or filtration procedures.

[0063] In this embodiment, a single pretreatment tank 110 is provided. The pretreatment assembly also includes two second composite filter elements 120, and the piping assembly includes a pretreatment pipe 182. At least two second composite filter elements 120 are connected to the pretreatment tank 110 via the pretreatment pipe 182. By providing only one pretreatment tank 110, the initial filtration process of wastewater is concentrated in one container, which facilitates management and maintenance, reduces equipment costs and space requirements. The first composite filter element installed inside the pretreatment tank 110 performs initial purification of the water flowing through the tank, effectively reducing the content of pollutants and suspended particles. The addition of the second composite filter elements 120 further improves the filtration effect, allowing the water to be more thoroughly purified before entering the reverse osmosis stage. The two second composite filter elements 120 do not occupy a large space and can improve the filtration effect.

[0064] In other alternative embodiments, the pretreatment tank 110 and the second composite filter element 120 may also be configured in other quantities depending on factors such as space size and filtration requirements.

[0065] like Figure 1-2As shown, the reverse osmosis device 100 also includes a balance tank 130 and a water pump 140. The piping assembly includes a first water pipe 183, through which the outlet of the balance tank 130 and the pumping end of the water pump 140 are connected. The piping assembly also includes a pretreated water outlet pipe 184, which is connected to the outlet of the pretreatment tank 110 and the inlet of the balance tank 130 to deliver liquid into the balance tank 130. The balance tank 130 stores and regulates the pretreated water, storing the raw water treated by the pretreatment tank 110 and the filter element. On the one hand, this improves the stability of the water supply to the water pump 140, prevents the water pump 140 from running dry, and improves its safety. On the other hand, it improves the stability of the outlet water flow, enhances the user experience, and prevents low outlet water flow due to low raw water flow. The water flow direction is optimized through the first water pipe 183, improving water treatment efficiency.

[0066] like Figure 2 As shown, the reverse osmosis unit 100 also includes a reverse osmosis membrane module 150 and a valve assembly; the piping assembly includes a second water pipe 185, and the valve assembly includes a first ball valve 191. The inlet pipe of the reverse osmosis membrane module 150 and the outlet pipe of the water pump 140 are connected through the second water pipe 185, and the first ball valve 191 is installed on the second water pipe 185. The reverse osmosis membrane module 150 can efficiently filter out small particles and dissolved impurities in the water, ensuring high water quality standards. The first ball valve 191 in the valve assembly can precisely control the amount of water flowing through the second water pipe 185, achieving stable water flow and preventing excessive or insufficient water flow from affecting the system. The second water pipe 185 connects the outlet pipe of the water pump 140 and the inlet pipe of the reverse osmosis membrane module 150, allowing pretreated water to smoothly enter the reverse osmosis membrane module 150 for deep purification. By rationally designing the path of the second water pipe 185, water flow resistance and pressure drop are reduced, improving water delivery efficiency.

[0067] like Figure 1-2As shown, the reverse osmosis membrane module 150 includes a reverse osmosis membrane, a reverse osmosis tank, a cleaning channel 153, and a wastewater channel 154. Both the cleaning channel 153 and the wastewater channel 154 are located at the end of the reverse osmosis tank furthest from the wastewater inlet pipe 181. The reverse osmosis membrane is disposed inside the reverse osmosis tank and near the end exiting the cleaning channel 153. The valve assembly includes a throttling valve 194 and a drain solenoid valve 195. The throttling valve 194 is located on the wastewater channel 154 of the reverse osmosis membrane module 150 to regulate the wastewater flow rate, and the drain solenoid valve 195 is located on the cleaning channel 153. The reverse osmosis membrane is a high-desalination membrane, capable of efficiently removing tiny particles and dissolved impurities from the water, resulting in high-standard effluent. The cleaning channel 153 and wastewater channel 154 are located at the end of the reverse osmosis tank furthest from the wastewater inlet pipe 181, used for cleaning the reverse osmosis membrane and discharging wastewater, respectively, ensuring the continuous and efficient operation of the system. The throttling valve 194 can regulate the wastewater flow rate, optimize the working state of the reverse osmosis membrane, and prevent excessive wastewater from affecting system performance. The drain solenoid valve 195 is installed on the cleaning channel 153. The drain solenoid valve 195 and the throttling valve 194 are connected in parallel at the wastewater end of the reverse osmosis membrane. After the reverse osmosis membrane has been continuously producing water for a period of time, the valve can be opened to achieve the purpose of flushing the membrane element. It is used to control the opening and closing of the drainage during the cleaning process, so as to achieve high efficiency and automation of the cleaning process.

[0068] like Figure 2 As shown, the valve assembly also includes a second ball valve 192, which is disposed on the first water pipe 183; and / or, the valve assembly also includes a third ball valve 193, which is disposed on the wastewater inlet pipe 181. The second ball valve 192 can precisely control the flow of water from the balance tank 130 to the water pump 140, improving the stability of the water pressure entering the water pump 140 and optimizing the system's operating efficiency. In case of system maintenance or emergency, the second ball valve 192 can be quickly closed to cut off the water flow, facilitating operation and protecting the equipment. The third ball valve 193 can control the flow rate of wastewater entering the pretreatment system, achieving stable water flow during the pretreatment stage and improving the pretreatment effect.

[0069] In this embodiment, the reverse osmosis device 100 also includes a water level sensor, which is disposed at the upper end of the balance tank 130 to regulate the water level in the balance tank 130. By monitoring the water level in the balance tank 130 in real time through the water level sensor, the system automatically adjusts the water inlet or outlet when the water level reaches the set high or low limit, so that the water level in the tank is maintained within a suitable range, thereby improving the automation level of the system and reducing the need for manual operation.

[0070] like Figure 1 and 2As shown, the reverse osmosis unit 100 also includes a control box 160 and a frame 170. The frame 170 further includes a base 171 and a clamping part 172. A balance tank 130 is disposed on the first side 173 of the base 171, a pretreatment tank 110 is disposed on the second side 174 of the base 171, and a reverse osmosis membrane assembly 150 is disposed between the first side 173 and the second side 174. The control box 160 is disposed on the frame 170 and above the balance tank 130. The control box 160 includes a first flow meter 161, a second flow meter, a third flow meter, a first pressure gauge 164, and a second pressure gauge 165 disposed on its control panel. The first flow meter 161, the second flow meter, and the third flow meter are used to display the water flow rate at different stages of the system in real time, helping operators understand the system's operating status. The first pressure gauge 164 and the second pressure gauge 165 are connected to the reverse osmosis membrane to display the pressure before the membrane, monitor the pressure of the reverse osmosis membrane, keep it in the best working condition, and extend the service life of the membrane. The frame 170 provides a stable support structure. The base 171 of the frame 170 integrates various components. The spatial layout between the components effectively utilizes the space of the frame 170 and reduces the system footprint.

[0071] This embodiment also provides a water treatment system based on the reverse osmosis device 100. By rationally designing and arranging the various components of the water treatment system, especially the overall frame 170, the reverse osmosis device 100 and other auxiliary equipment, the space utilization of the system is optimized.

[0072] Specifically, in this embodiment, the frame 170 is made of stainless steel square tubing welded by argon arc welding. The frame is divided into upper and lower layers. The upper layer fixes and installs some small components, while the lower layer installs heavier components. The base 171 is generally made of stainless steel sheet welded to the bottom support. The control box 160 is also made of stainless steel. This box has an independent front door with mounting holes for fixing the power button, start button, flushing button, and emergency stop button, as well as mounting holes for installing the pure water TDS value display and the door lock. The panel also has mounting holes for the first flow meter 161, the second flow meter 162, and the third flow meter 163, as well as mounting holes for the first pressure gauge 164 and the second pressure gauge 165. The first flow meter 161 displays the pure water flow rate in real time, the second flow meter 162 displays the pure water flow rate in real time, and the third flow meter 163 displays the wastewater flow rate in real time. The first pressure gauge 164 connects to the inlet water pressure of the raw water, and the second pressure gauge 165 connects to the membrane pressure of the reverse osmosis membrane element. In this embodiment, the clamping part 172 is a tank fixing bracket. This bracket is semi-circular and is used to fix the pretreatment tank to prevent it from tipping over. The balance water tank 130 has a water inlet, a liquid level detection device, a pump inlet, and a pure water return outlet. The main function of this water tank is to store the pretreated and filtered water in it to prevent slow water production caused by low raw water pressure. The water pump 140 is equipped with inlet and outlet ports, which provide water production pressure for the reverse osmosis membrane.

[0073] In this embodiment, the pure water tank 200 has a pure water inlet and a pure water return outlet, and is fixed to a wall or other fixed object by a pure water tank 200 fixing bracket. Ball valves are installed on the water meter and the inlet pipe of the pretreatment tank 110, as well as on the water outlet of the pretreatment filter cartridge and the inlet pipe of the balance water tank 130. The pretreatment composite filter cartridge in this embodiment can be a carbon fiber filter cartridge or a composite filter cartridge of carbon rod and polypropylene. The water level in the balance water tank 130 is controlled by a water level sensor, which can be set according to the system preset. The water meter can be used to count the total water consumption of the entire system.

[0074] In this embodiment, the first composite filter element in the pretreatment tank 110 can be a composite filter element of granular activated carbon, manganese sand, and resin.

[0075] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A reverse osmosis device, characterized by, It includes a pipeline assembly, a pretreatment assembly, the pretreatment assembly including a pretreatment tank and a first composite filter, the pipeline assembly including a wastewater inlet pipeline, the wastewater inlet pipeline being in communication with the pretreatment tank, the first composite filter being disposed inside the pretreatment tank for filtering water flowing through the pretreatment tank.

2. The reverse osmosis device of claim 1, wherein, The pretreatment tank is provided as one; and / or, the pretreatment assembly further includes at least two second composite filters, the pipeline assembly further including a pretreatment pipeline, the at least two second composite filters being connected with the pretreatment tank through the pretreatment pipeline.

3. The reverse osmosis device of claim 1, wherein, The reverse osmosis device further includes a balance water tank and a water making pump, the pipeline assembly including a first water pipeline, a water outlet end of the balance water tank being in communication with a pump water end of the water making pump through the first water pipeline; The pipeline assembly further includes a pretreatment water outlet pipeline, the pretreatment water outlet pipeline being in communication with a water outlet of the pretreatment tank and a water inlet end of the balance water tank respectively for conveying liquid into the balance water tank.

4. The reverse osmosis device of claim 3, wherein the at least one of the plurality of membranes is a spiral wound membrane. The reverse osmosis device further includes a reverse osmosis membrane assembly and a valve assembly; The pipeline assembly further includes a second water pipeline, the valve assembly including a first ball valve, a water inlet pipeline of the reverse osmosis membrane assembly and a water outlet pipeline of the water making pump being in communication through the second water pipeline, the first ball valve being disposed on the second water pipeline.

5. The reverse osmosis device of claim 4, wherein the at least one of the plurality of membranes is a spiral wound membrane. The reverse osmosis membrane assembly includes a reverse osmosis membrane, a reverse osmosis tank, a cleaning channel and a wastewater channel, the cleaning channel and the wastewater channel being disposed at an end of the reverse osmosis tank away from the wastewater inlet pipeline, the reverse osmosis membrane being disposed inside the reverse osmosis tank and close to an end of the cleaning channel; The valve assembly includes a throttling valve and a drainage electromagnetic valve, the throttling valve being disposed on the wastewater channel of the reverse osmosis membrane assembly for adjusting a flow rate of wastewater, the drainage electromagnetic valve being disposed on the cleaning channel.

6. The reverse osmosis device of claim 4, wherein, The valve assembly further includes a second ball valve, the second ball valve being disposed on the first water pipeline; and / or, the valve assembly further includes a third ball valve, the third ball valve being disposed on the wastewater inlet pipeline.

7. The reverse osmosis device of claim 4, wherein the first and second membranes are arranged in a spiral wound configuration. The reverse osmosis device further includes a water level sensor, the water level sensor being disposed at an upper end of the balance water tank for adjusting a water level in the balance water tank.

8. The reverse osmosis device of claim 5, wherein, The reverse osmosis device further includes a control box, the control box being disposed above the balance water tank, the control box including a first installed flow meter, a second flow meter, a third flow meter, a first pressure gauge and a second pressure gauge disposed on a control panel thereof, the first installed flow meter, the second flow meter and the third flow meter being used for displaying water flow, the first pressure gauge and the second pressure gauge being connected with the reverse osmosis membrane for displaying a pre-membrane pressure of the reverse osmosis membrane.

9. The reverse osmosis device of claim 8, wherein the at least one of the plurality of membranes is a spiral wound membrane. The reverse osmosis device further includes a whole machine skeleton, the whole machine skeleton further including a base and a clamping portion, the balance water tank being disposed at a first side of the base, the pretreatment tank being disposed at a second side of the base, the reverse osmosis membrane assembly being disposed between the first side and the second side.

10. A water treatment system characterized by, It includes the reverse osmosis device according to any one of claims 1-9.

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