Wastewater filtration reverse osmosis device

Abstract

The invention relates to the technical field of wastewater filtration, and discloses a wastewater filtration reverse osmosis device which comprises a rack, a membrane module body is arranged outside the rack, and a reverse osmosis assembly is further arranged outside the rack. According to the device, a reverse osmosis assembly is arranged and is matched with a frame, a vertical frame and a V-shaped plate, so that a plurality of groups of membrane module bodies, water inlet pipelines and produced water discharging pipes are conveniently mounted, and a replacement channel through which a worker can pass is formed in the middle of the frame by optimizing the array layout of a branch pipeline, a main water inlet pipe, a first produced water branch pipe, a second produced water branch pipe and a produced water main pipe; when a certain group of membrane module body needs to be replaced and cleaned, the corresponding ball valve is closed to carry out independent overhaul, so that the whole disassembly of the same row of membrane module bodies is avoided, the hidden danger of leakage is reduced, independent overhaul can be carried out under the condition of not exiting a reverse osmosis system, the continuous operation of the system is guaranteed, and the utilization rate of water resources is improved; implementation is easy, modification cost is low, and application and popularization are convenient.

Description

Technical Field

[0001] This invention relates to the field of wastewater filtration technology, specifically to a wastewater filtration reverse osmosis device. Background Technology

[0002] In industrial production and daily life, wastewater discharge continues to increase, and the demand for water resource recycling is becoming increasingly urgent. Wastewater filtration reverse osmosis technology, as an efficient water treatment method, is widely used in many fields such as chemical industry, municipal administration, and environmental protection. This technology uses reverse osmosis membrane modules to deeply purify pre-treated wastewater, effectively removing impurities such as dissolved salts, colloids, and organic matter from the wastewater, realizing the recycling of wastewater or achieving standard discharge. It is of great significance for alleviating water shortage and protecting the ecological environment.

[0003] However, existing wastewater filtration reverse osmosis devices still have certain shortcomings in practical applications. The layout of the reverse osmosis components in existing devices is unreasonable, with membrane modules, pipelines and other components arranged in a dense manner without providing convenient maintenance channels. When a membrane module fails and needs to be replaced or cleaned, the entire membrane module in the same row or even all of them need to be disassembled. This not only increases the workload and difficulty of maintenance and prolongs the maintenance time, but also significantly increases the risk of wastewater leakage.

[0004] On the other hand, some devices have imperfect pre-filtration structure designs, cumbersome filter plate disassembly and assembly, poor sealing, and a lack of targeted flushing auxiliary structures, which can easily lead to impurity residue affecting the reverse osmosis effect. At the same time, most devices lack a real-time and effective leak monitoring mechanism, making it difficult to detect leaks at the connection between the membrane module and the pipeline in a timely manner, which can easily lead to water waste and equipment damage, further reducing the operational reliability and practicality of the device. In addition, some improved devices have complex structures and high modification costs, which are not conducive to large-scale promotion and application. In view of this, we propose a wastewater filtration reverse osmosis device. Summary of the Invention

[0005] The purpose of this invention is to provide a wastewater filtration reverse osmosis device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A wastewater filtration reverse osmosis device includes a frame, a feed pump fixedly mounted on the frame, an output end of the feed pump fixedly connected to an input end of a bent pipe, a membrane module body disposed outside the frame, and a reverse osmosis assembly disposed outside the frame, the reverse osmosis assembly comprising: A frame is disposed outside the machine frame. A vertical frame is fixedly installed on the frame, and a V-shaped plate is fixedly installed on the vertical frame. The membrane module body is placed on the V-shaped plate. The inlet and outlet ends of the membrane module body are respectively fixedly installed with inlet water pipe and outlet water pipe through flanges and fasteners. Ball valves are installed on both the inlet water pipe and the outlet water pipe. The outlet end of the elbow is fixedly connected to the inlet end of the main inlet water pipe. A branch pipe is fixedly installed between the outlet end of the main inlet water pipe and the inlet water pipe inlet end. A pressure balancing valve is installed on the branch pipe. The first water production branch pipe is fixedly connected to the output end of the water discharge pipe. The output end of the first water production branch pipe is fixedly connected to the input end of the second water production branch pipe. The output end of the second water production branch pipe is fixedly installed with the main water production pipe. A replacement channel is provided at the vertical center of the frame.

[0007] In a further embodiment, the vertical frame, branch pipes, pressure balancing valve, first water production branch pipe, and second water production branch pipe are provided in two sets, symmetrically arranged on both sides of the replacement channel.

[0008] In a further embodiment, the membrane module body, V-shaped plate, inlet pipe, outlet pipe and ball valve are provided in multiple sets and are symmetrically arranged on both sides of the replacement channel.

[0009] In a further embodiment, each of the first product water branch pipes is provided with two input ends, which are respectively connected to the output ends of two adjacent product water discharge pipes in parallel, thereby avoiding the overall disassembly of the membrane module body in the same row and reducing the risk of leakage.

[0010] In a further embodiment, a filter assembly is provided on the frame, the filter assembly includes a stainless steel filter tank, the output end of the stainless steel filter tank is fixedly connected to the input end of the feed pump, and a PP melt-blown filter element is provided inside the stainless steel filter tank.

[0011] In a further embodiment, the input end of the stainless steel filter tank is fixedly connected to the output end of the inlet pipe, the input end of the inlet pipe is fixedly connected to the output end of the liquid supply device, an inlet valve is provided on the inlet pipe, a protrusion is integrally formed on the inlet pipe, a locking block is fixedly installed inside the protrusion by screws, a connecting rod is fixedly installed on the locking block, a filter plate is fixedly installed on the connecting rod, and a sealing ring is provided between the filter plate and the inlet pipe for better filtration.

[0012] In a further embodiment, an auxiliary pipe is integrally formed on the inlet pipe, an auxiliary valve is provided on the auxiliary pipe, and the input end of the auxiliary pipe is connected to a water supply device.

[0013] In a further embodiment, the frame is provided with an auxiliary component, which includes a rectangular frame that is snapped into the bottom of the frame. An inclined plate is fixedly installed inside the rectangular frame, and the upper surface of the inclined plate is inclined. The inclined plate is located below the membrane module body.

[0014] In a further embodiment, a guide groove is provided at the bottom end of the inclined plate.

[0015] In a further embodiment, a guide pipe is fixedly installed on the rectangular frame. The guide pipe is located inside the guide channel and is equipped with a liquid level sensor to remind staff to come for inspection and replacement, thereby improving the practicality of the device.

[0016] Compared with the prior art, the present invention provides a wastewater filtration reverse osmosis device, which has the following beneficial effects: 1. This wastewater filtration reverse osmosis unit, designed for better wastewater treatment, utilizes reverse osmosis components. Firstly, it incorporates a frame, vertical support, and V-shaped plate to facilitate the installation of multiple membrane modules, inlet pipes, and product water outlet pipes. Secondly, by optimizing the array layout of branch pipes, the main inlet pipe, the first product water branch pipe, the second product water branch pipe, and the main product water pipe, a replacement passageway is created in the middle of the frame, allowing personnel to pass through. This reduces maintenance workload and operational difficulty, improving maintenance efficiency. When a membrane module needs replacement or cleaning, the corresponding ball valve can be closed for independent disassembly and inspection, avoiding the need for complete disassembly of the entire membrane module in the same row, thus reducing the risk of leakage. In other words, when water supply is tight, a single membrane module can be used for maintenance. If the membrane module fails, it can be repaired independently without shutting down the reverse osmosis system, ensuring continuous system operation, improving water resource utilization, and is simple to implement with low modification costs, making it easy to promote and apply. The wastewater filtration route is as follows: start the feed pump on the frame, after primary and secondary filtration, enter the bend, and then flow through the main inlet pipe to multiple branch pipes, then into all inlet pipes and the membrane module, and finally through multiple first product water branch pipes to the two second product water branch pipes, and finally into the main product water pipe. With the help of pressure balancing valves, the pipeline pressure is monitored in real time. When part of the membrane module is removed, it can be replenished through the auxiliary pipes and auxiliary valves in the filter assembly.

[0017] 2. This wastewater filtration reverse osmosis device, in order to achieve better filtration, is equipped with a filter assembly. Before the reverse osmosis assembly operates, pre-filtration is performed. Wastewater (demineralized water) first enters the inlet pipe, where filter plates intercept large suspended particles. With the help of locking blocks, screws, and connecting rods, it is easy to remove the filter plates from the protrusions. Note that the inlet valve needs to be closed, and the sealing ring is used to improve the sealing performance. After replacement and cleaning, the auxiliary valve on the auxiliary pipe is opened first, and clean water can be injected to clean the reverse osmosis assembly structure. The pre-filtered wastewater passes through the PP melt-blown filter element in the stainless steel filter tank to further filter out fine impurities, thereby protecting the reverse osmosis assembly structure.

[0018] 3. In order to improve the practicality of this wastewater filtration reverse osmosis device, an auxiliary component is set up. When a leak occurs at the connection of the membrane module body, the medium will drip down onto the inclined plate of the rectangular frame, contact the inclined surface and be guided to the guide channel, and then be introduced into the external equipment through the guide pipe. The liquid level sensor generates a value and transmits it to the background controller to remind the staff to come for inspection and replacement, thereby improving the practicality of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 For the present invention Figure 2 Enlarged structural diagram of region A in the middle; Figure 4 This is a first-view schematic diagram of the connection of some structures in this invention; Figure 5 This is a second-view schematic diagram of the connection of some structures in this invention; Figure 6 This is a third-view schematic diagram of the connection of some structures in this invention; Figure 7 This is a schematic diagram of the connection of some structures of the present invention from a fourth perspective; Figure 8 This is a cross-sectional view of the framework of the present invention; Figure 9 This is a schematic diagram of the framework and some structural connections of the present invention; Figure 10 This is a schematic diagram of the overall structure of the filter assembly of the present invention; Figure 11 This is a cross-sectional view of a portion of the filter assembly structure of the present invention; Figure 12 This is a cross-sectional view of a portion of the filter component structure from another perspective of the present invention; Figure 13 This is a cross-sectional view of the auxiliary component structure of the present invention.

[0020] Explanation of icon numbers: 1. Frame; 2. Feed pump; 3. Bend; 4. Membrane module body; 5. Reverse osmosis assembly; 51. Frame; 52. Vertical frame; 53. V-plate; 54. Inlet water pipe; 55. Product water outlet pipe; 56. Ball valve; 57. Branch pipe; 58. Main inlet water pipe; 59. Pressure balancing valve; 510. First product water branch pipe; 511. Second product water branch pipe; 512. Main product water pipe; 513. Replacement channel; 6. Filter assembly; 61. Stainless steel filter tank; 62. Inlet pipe; 63. Inlet valve; 64. Protrusion; 65. Clamp; 66. Screw; 67. Connecting rod; 68. Filter plate; 69. Sealing ring; 610. Auxiliary pipe; 611. Auxiliary valve; 7. Auxiliary components; 71. Rectangular frame; 72. Inclined plate; 73. Flow guide channel; 74. Flow guide pipe; 75. Liquid level sensor. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0023] Please see Figures 1-13 The present invention provides a technical solution: A wastewater filtration reverse osmosis device includes a frame 1, a feed pump 2 fixedly mounted on the frame 1, an input end of a bend pipe 3 fixedly connected to the output end of the feed pump 2, and a membrane module body 4 disposed outside the frame 1. In one embodiment of the present invention, a reverse osmosis assembly 5 is further provided outside the frame 1. The reverse osmosis assembly 5 includes a frame 51, which is disposed outside the frame 1. A vertical frame 52 is fixedly installed on the frame 51, and a V-shaped plate 53 is fixedly installed on the vertical frame 52. The membrane module body 4 is placed on the V-shaped plate 53. The inlet water pipe 54 and the outlet water pipe 55 are respectively fixedly installed at the inlet water pipe 54 and the outlet water pipe 55 by flanges and fasteners. Ball valves 56 are provided on both the inlet water pipe 54 and the outlet water pipe 55. The outlet end of the bend 3 is fixedly connected to the inlet end of the main inlet water pipe 58. A branch pipe 57 is fixedly installed between the outlet end of the main inlet water pipe 58 and the inlet end of the inlet water pipe 54. A pressure balancing valve 59 is provided on the branch pipe 57. A first product water branch pipe 510 is fixedly connected to the outlet end of the outlet water pipe 55. The output end is fixedly connected to the input end of the second permeate branch pipe 511. The output end of the second permeate branch pipe 511 is fixedly installed with the permeate main pipe 512. A replacement channel 513 is set in the vertical center of the frame 51. Furthermore, two sets of vertical frame 52, branch pipe 57, pressure balancing valve 59, first permeate branch pipe 510 and second permeate branch pipe 511 are set and symmetrically arranged on both sides of the replacement channel 513. Furthermore, twenty sets of membrane module body 4, V-shaped plate 53, inlet pipe 54, permeate discharge pipe 55 and ball valve 56 are set and symmetrically arranged on both sides of the replacement channel 513, totaling five rows and four columns. Furthermore, each first permeate branch pipe 510 is provided with two input ends, which are respectively connected to the output ends of two adjacent permeate discharge pipes 55, avoiding the overall disassembly of the membrane module body 4 in the same row and reducing the risk of leakage.

[0024] In one embodiment of the present invention, a filter assembly 6 is provided on the frame 1. The filter assembly 6 includes a stainless steel filter tank 61. The output end of the stainless steel filter tank 61 is fixedly connected to the input end of the feed pump 2. A PP melt-blown filter element is provided inside the stainless steel filter tank 61. Further, the input end of the stainless steel filter tank 61 is fixedly connected to the output end of the liquid inlet pipe 62. The input end of the liquid inlet pipe 62 is fixedly connected to the output end of the liquid supply equipment. A liquid inlet valve 63 is provided on the liquid inlet pipe 62. A protrusion 64 is integrally formed on the liquid inlet pipe 62. A locking block 65 is fixedly installed inside the protrusion 64 by screws 66. A connecting rod 67 is fixedly installed on the locking block 65. A filter plate 68 is fixedly installed on the connecting rod 67. A sealing ring 69 is provided between the filter plate 68 and the liquid inlet pipe 62 for better filtration. Further, an auxiliary pipe 610 is integrally formed on the liquid inlet pipe 62. An auxiliary valve 611 is provided on the auxiliary pipe 610. The input end of the auxiliary pipe 610 is connected to the water supply equipment.

[0025] In one embodiment of the present invention, an auxiliary component 7 is provided on the frame 51. The auxiliary component 7 includes a rectangular frame 71, which is snapped into the bottom of the frame 51. An inclined plate 72 is fixedly installed inside the rectangular frame 71. The upper surface of the inclined plate 72 is inclined. The inclined plate 72 is located below the membrane module body 4. Further, a guide groove 73 is provided at the bottom of the inclined plate 72. Further, a guide pipe 74 is fixedly installed on the rectangular frame 71. The guide pipe 74 is located inside the guide groove 73. A liquid level sensor 75 is provided on the guide pipe 74 to remind the staff to come for inspection and replacement, thereby improving the practicality of the device.

[0026] Working principle: First, the pre-filtration process is started. The wastewater to be treated is continuously supplied to the inlet pipe 62 by the external liquid supply equipment. When flowing through the inlet pipe 62, the wastewater is initially intercepted by the filter plate 68, blocking large suspended impurities such as stones, fibers, and waste residue mixed in the wastewater. This prevents such impurities from entering subsequent components and causing blockage or wear. The locking block 65 is fixed to the connecting rod 67 by screws 66, which is easy to disassemble and assemble. It is assembled inside the protrusion 64. At the same time, a sealing ring 69 is installed at the contact part between the filter plate 68 and the inlet pipe 62 to effectively enhance the sealing of the connection. The wastewater after preliminary filtration by the filter plate 68 flows into the stainless steel filter tank 61. The pre-set PP meltblown filter element performs secondary fine filtration to deeply remove fine impurities such as colloids and silt from the wastewater. The purified wastewater is delivered to the input end of the feed pump 2 through the output end of the stainless steel filter tank 61. When the filter plate 68 needs to be replaced and cleaned due to the accumulation of impurities after long-term use, the inlet valve 63 on the inlet pipe 62 is closed to cut off the wastewater supply. The screws 66 are removed and the locking block 65 is loosened. The filter plate 68 can be easily removed for cleaning or replacement through the connecting rod 67. After replacement and reset, the auxiliary valve 611 on the auxiliary pipe 610 can be opened first to inject clean water into the pipeline with the help of an external water supply device to flush and clean the pipelines and core components of the subsequent reverse osmosis component 5.

[0027] After pre-filtration, the wastewater enters the reverse osmosis treatment process. The feed pump 2 on frame 1 delivers the filtered wastewater to the bend 3, which then leads to the main inlet pipe 58. The main inlet pipe 58 distributes the wastewater to various inlet pipes 54 via four sets of branch pipes 57, ultimately sending it into the membrane module 4 for reverse osmosis treatment. In the reverse osmosis module 5, the frame 51, together with the vertical frame 52 and V-shaped plate 53, ensures the stable installation of twenty membrane module units 4. These twenty units are symmetrically arranged in five rows and four columns on both sides of the replacement channel 513. Each branch pipe 57, pressure balancing valve 59, first product water branch pipe 510, and second product water branch pipe 511 is equipped with two... The membrane modules are symmetrically distributed on both sides of the replacement channel 513, forming a regular array layout. The pressure balancing valve 59 monitors the pressure inside the branch pipe 57 in real time to ensure stable pipe pressure. The qualified permeate water after reverse osmosis purification by the membrane module body 4 is transported outward through the permeate water discharge pipe 55 connected to the output end of the membrane module body 4. Each first permeate water branch pipe 510 is equipped with two input ends, which are respectively connected to the output ends of two adjacent permeate water discharge pipes 55 to achieve centralized collection of permeate water. The ten first permeate water branch pipes 510 transport the collected permeate water to two second permeate water branch pipes 511, and then the second permeate water branch pipes 511 collect the water and introduce it into the permeate water main pipe 512. Finally, the water is transported to external storage or water-using equipment through the main product water pipe 512. Ball valves 56 are installed on both the inlet pipe 54 and the outlet product water pipe 55. Each pair of ball valves 56 independently controls the water flow of one group of membrane modules 4. When a group of membrane modules 4 malfunctions or needs to be replaced or cleaned regularly, staff can easily reach the corresponding location through the replacement channel 513 in the middle of the frame 51 or the outside of the frame 51, close the two ball valves 56 corresponding to that group of membrane modules 4, and disconnect it from the overall pipeline. This allows for independent disassembly, replacement, or cleaning without the need to disassemble the entire row or even all of the membrane modules 4, significantly reducing wastewater leakage during disassembly. Even in scenarios where water supply is tight and the equipment needs to operate continuously, if a single membrane module 4 malfunctions, it can be repaired independently without exiting the overall reverse osmosis system or affecting the normal operation of other membrane modules 4. This effectively ensures continuous system operation and improves water resource utilization. When a portion of the membrane module 4 is removed for maintenance, causing a significant change in water pressure in the pipeline, an appropriate amount of medium can be added to the pipeline through the auxiliary pipe 610 and auxiliary valve 611 of the filter assembly 6. With the adjustment of the pressure balancing valve 59, the pipeline pressure can be stabilized, ensuring the normal operation of the remaining membrane modules 4.

[0028] During the overall operation of the device, auxiliary component 7 is in continuous working condition, providing leakage monitoring and timely detection of potential operational hazards. The rectangular frame 71 of auxiliary component 7 is snapped and fixed inside the bottom of frame 51. The inclined plate 72 fixedly installed inside the rectangular frame 71 is at a preset tilt angle and is located below the membrane module body 4. It can fully receive the medium that may leak at the connection of the membrane module body 4. If wastewater leaks at the connection between the membrane module body 4 and the inlet pipe 54 and the outlet pipe 55 due to reasons such as aging of the seal or loose assembly, the leaked medium will naturally drip down onto the inclined plate 72, and the inclined plate 72 will help to collect the leaked medium. The structure guides the medium along the inclined plane to the guide groove 73 at the bottom of the inclined plate 72, and then through the guide pipe 74 fixedly installed on the rectangular frame 71, the leaked medium is introduced into the external collection equipment. The liquid level sensor 75 installed on the guide pipe 74 monitors the medium in the pipe in real time. When the leaked medium is detected flowing through the guide pipe 74, a corresponding numerical signal is generated and transmitted to the background controller through a preset circuit. After receiving the signal, the background system issues an alarm prompt, which promptly reminds the staff to come and inspect and replace the faulty parts, so as to avoid the leakage range from expanding and affecting the operation of the equipment, and significantly improve the safety, reliability and practicality of the device operation.

[0029] All pipelines are connected via flanges and fasteners. All electrical components mentioned in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the feed pump 2, pressure balancing valve 59, auxiliary valve 611, and level sensor 75. The signal interaction between the components adopts the PLC control protocol commonly used in industrial equipment, which is common knowledge to those skilled in the art and can be implemented without further detailed description. The control logic and signal interaction method are existing technologies and will not be described in detail here. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding, which are mature technologies in the prior art. The standard parts are all conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art and will not be described in detail here.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A wastewater filtration reverse osmosis device, comprising a frame (1), a feed pump (2) fixedly mounted on the frame (1), the output end of the feed pump (2) being fixedly connected to the input end of a bent pipe (3), and a membrane module body (4) disposed outside the frame (1), characterized in that: The frame (1) is also provided with a reverse osmosis assembly (5), which includes: A frame (51) is set outside the frame (1). A vertical frame (52) is fixedly installed on the frame (51). A V-shaped plate (53) is fixedly installed on the vertical frame (52). The membrane module body (4) is placed on the V-shaped plate (53). The inlet pipe (54) and the outlet pipe (55) of the membrane module body (4) are fixedly installed by flanges and fasteners, respectively. A ball valve (56) is provided on both the inlet pipe (54) and the outlet pipe (55). The outlet of the bend (3) is fixedly connected to the inlet of the main inlet pipe (58). A branch pipe (57) is fixedly installed between the outlet of the main inlet pipe (58) and the inlet pipe (54). A pressure balancing valve (59) is provided on the branch pipe (57). The first water production branch pipe (510) is fixedly connected to the output end of the water discharge pipe (55). The output end of the first water production branch pipe (510) is fixedly connected to the input end of the second water production branch pipe (511). The output end of the second water production branch pipe (511) is fixedly installed with the main water production pipe (512). A replacement channel (513) is provided in the vertical center of the frame (51).

2. The wastewater filtration reverse osmosis device according to claim 1, characterized in that: The vertical frame (52), branch pipe (57), pressure balancing valve (59), first water production branch pipe (510) and second water production branch pipe (511) are provided in two sets, symmetrically arranged on both sides of the replacement channel (513).

3. The wastewater filtration reverse osmosis device according to claim 2, characterized in that: The membrane module body (4), V-shaped plate (53), water inlet pipe (54), water outlet pipe (55) and ball valve (56) are provided in multiple sets and are symmetrically arranged on both sides of the replacement channel (513).

4. The wastewater filtration reverse osmosis device according to claim 3, characterized in that: Each first water production branch pipe (510) has two input ends, which are respectively connected to the output ends of two adjacent water production pipes (55).

5. The wastewater filtration reverse osmosis device according to claim 1, characterized in that: The frame (1) is provided with a filter assembly (6), which includes a stainless steel filter tank (61). The output end of the stainless steel filter tank (61) is fixedly connected to the input end of the feed pump (2), and a PP melt-blown filter element is provided inside the stainless steel filter tank (61).

6. The wastewater filtration reverse osmosis device according to claim 5, characterized in that: The stainless steel filter tank (61) is fixedly connected to the output end of the inlet pipe (62) at the input end. The inlet pipe (62) is fixedly connected to the output end of the liquid supply equipment at the input end. An inlet valve (63) is provided on the inlet pipe (62). A protrusion (64) is integrally formed on the inlet pipe (62). A locking block (65) is fixedly installed inside the protrusion (64) by screws (66). A connecting rod (67) is fixedly installed on the locking block (65). A filter plate (68) is fixedly installed on the connecting rod (67). A sealing ring (69) is provided between the filter plate (68) and the inlet pipe (62).

7. The wastewater filtration reverse osmosis device according to claim 6, characterized in that: An auxiliary pipe (610) is integrally formed on the inlet pipe (62), and an auxiliary valve (611) is provided on the auxiliary pipe (610). The input end of the auxiliary pipe (610) is connected to a water supply device.

8. The wastewater filtration reverse osmosis device according to claim 1, characterized in that: An auxiliary component (7) is provided on the frame (51). The auxiliary component (7) includes a rectangular frame (71). The rectangular frame (71) is snapped into the bottom of the frame (51). An inclined plate (72) is fixedly installed inside the rectangular frame (71). The upper surface of the inclined plate (72) is inclined. The inclined plate (72) is located below the membrane assembly body (4).

9. The wastewater filtration reverse osmosis device according to claim 8, characterized in that: The bottom end of the inclined plate (72) is provided with a guide groove (73).

10. The wastewater filtration reverse osmosis device according to claim 9, characterized in that: A guide pipe (74) is fixedly installed on the rectangular frame (71). The guide pipe (74) is located inside the guide groove (73). A liquid level sensor (75) is installed on the guide pipe (74).

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