A high-flux stainless steel reverse osmosis membrane module and a dynamic pressure equalization method thereof

Abstract

The application discloses a high-flux stainless steel reverse osmosis membrane group and a dynamic pressure equalization method thereof, and relates to the technical field of water purification equipment.The application increases the effective filtering area by densely stacking reverse osmosis filtering components and support screens in the axial direction inside a stainless steel cylinder, and meanwhile, independent channels are arranged in all the reverse osmosis membrane components, so that water flow can pass through multiple membrane groups simultaneously to realize reverse osmosis under the action of pressure difference, and the water purification flux is greatly improved;in the reverse osmosis process, the non-permeate liquid flows in the support screen to form a continuous scouring effect on the surface of the reverse osmosis membrane, thereby effectively removing adhered impurities, automatically cleaning the membrane surface, significantly prolonging the service life of the membrane, and reducing the replacement frequency of consumables and operation and maintenance costs.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water purification equipment, in particular to a high-flux stainless steel reverse osmosis membrane group and a dynamic pressure equalization method thereof. BACKGROUND

[0002] In the existing reverse osmosis water purification system, the membrane assembly mostly adopts a plastic shell as the containing structure, and the common membrane group form inside is a single flat type or a winding structure. Although this kind of structure is convenient for manufacturing and assembly integration to a certain extent, it has many limitations in use.

[0003] Firstly, no effective isolation support structure is usually provided between the reverse osmosis membranes, and the membranes are in a stacked state by self-winding or pressing. This structure lacking independent support is prone to problems such as uneven pressure on the membranes, local warping or tension changes during operation.

[0004] Secondly, the existing system mostly adopts a "single-path centralized water supply" mode, that is, water is uniformly sent into the membrane group inlet from the central water inlet, and then a certain pressure is formed by the water pump for reverse osmosis treatment. When multiple membrane groups are connected in parallel, this single-path water supply often causes uneven water pressure transmission, and the water inlet pressure of different membrane regions is different, which leads to low permeation of some membrane groups or even ineffective filtration, and some membrane groups are accelerated aging due to high pressure, and the purification efficiency of the whole system is obviously limited. SUMMARY

[0005] To overcome the defects of the prior art, the present application provides the following technical scheme: a high-flux stainless steel reverse osmosis membrane group, comprising a stainless steel cylinder, a first end cover and a second baffle are fixedly and sealingly installed at both ends of the stainless steel cylinder, wherein a water inlet is fixedly installed on the first end cover and communicates with the inside of the stainless steel cylinder; reverse osmosis filter assemblies and support screens are alternately and coaxially stacked inside the stainless steel cylinder along the axial direction of the stainless steel cylinder, wherein the reverse osmosis filter assemblies are formed by two circular reverse osmosis membranes adhered and sealed, so that a hollow space is formed inside the reverse osmosis filter assemblies, and a circular hole is provided in the middle of the reverse osmosis filter assemblies, all the reverse osmosis filter assemblies are connected and communicated by a sealing connecting ring, and the sealing connecting ring is used to seal the circular hole in the middle of the reverse osmosis filter assemblies; two sealing rubber strips are fixedly installed on the inner wall of the stainless steel cylinder in a symmetrical manner, the two sealing rubber strips are used to fix and support all the support screens and reverse osmosis filter assemblies, and the two sealing rubber strips and all the alternately stacked support screens and reverse osmosis filter assemblies divide the inside of the stainless steel cylinder into a space a and a space b, and the space a and the space b are permeably communicated through the support screens.

[0006] Preferably, the inner wall of the stainless steel cylinder is fixedly installed with a first baffle at one end of the first end cover, the first baffle is communicated with the space a, the first baffle is used for shielding the sealed space b (an arc recess is formed on one side of the first baffle in the space a, so that the space between the first end cover and the first baffle is communicated with the space a), and a gap is arranged between the first baffle and the first end cover, so that the water inlet is communicated with the inside of the stainless steel cylinder.

[0007] Preferably, the second baffle is communicated with the space b, the second baffle is used for shielding the sealed space a (an arc recess is formed on one side of the second baffle in the space b, so that the space between the guide isolation plate and the second baffle is communicated with the space b), the stainless steel cylinder is fixedly and sealingly installed with an adjusting cavity at one end of the second baffle, the inner wall of the adjusting cavity is fixedly installed with a guide isolation plate, a gap is arranged between the guide isolation plate and the second baffle, and the space between the guide isolation plate and the second baffle is communicated with the space b inside the stainless steel cylinder.

[0008] Preferably, the guide isolation plate is fixedly and sealingly inserted with a drain port at the axial position, the drain port is sealingly communicated with the inside of all the reverse osmosis filtering assemblies through the second baffle, an adjusting drain hole is formed in the guide isolation plate, an inner guide pipe and an outer guide pipe are arranged on the side of the adjusting drain hole, the inner guide pipe, the outer guide pipe and the drain port are coaxially arranged, and a space is left between the outer guide pipe and the inner guide pipe and aligned with the adjusting drain hole.

[0009] Preferably, the outer side of the inner guide pipe is rotatably installed with a paddle through a paddle support, the circumferential surface of the paddle is fixedly sleeved with an inner gear ring, the outer side of the inner gear ring is coaxially arranged with an outer gear ring, the outer gear ring and the inner gear ring are meshed and transmitted through two control gears, the two control gears are symmetrically arranged, and the two control gears are rotatably installed on a control gear magnetic rack.

[0010] Preferably, the guide isolation plate is also fixedly installed with an electromagnet, the electromagnet is coaxially arranged with the control gear magnetic rack, a plurality of circular equidistant arrayed balls are embedded on the side of the control gear magnetic rack facing the electromagnet, the control gear magnetic rack is rollingly and frictionally matched with the electromagnet through the balls, and the control gear magnetic rack is magnetically matched with the electromagnet.

[0011] Preferably, the adjusting cavity is fixedly and sealingly installed with a second end cover, an adjusting drive sleeve is rotatably and sealingly inserted into the axial position of the second end cover, an adjusting drive ring is fixedly and coaxially arranged on the outer side of the adjusting drive sleeve through a connecting rod, and the adjusting drive ring is coaxially and fixedly matched with the outer gear ring.

[0012] Preferably, the adjusting drive sleeve is arranged on the circumferential surface of the drain port, a waste water port is further fixed on the second end cover, a cavity is left between the adjusting cavity and the second end cover, and the second end cover is fixed with the waste water port communicating with the cavity; the adjusting drive sleeve is fixed with a driven gear plate at one end outside the second end cover, and is driven by a chain in transmission cooperation with the driven gear plate (the equipment array is arranged, and the driven gear plates in each equipment are connected in series by the chain).

[0013] A method for balancing dynamic pressure of a high-flux stainless steel reverse osmosis membrane group, comprising the following steps: S1, starting a water inlet system, so that the treated water enters the stainless steel cylinder through the water inlet, and a pre-flow cavity is formed between the first end cover and the first baffle; S2, the water flows into the space a inside the stainless steel cylinder through the first baffle, and penetrates into the space b through the support screen; S3, part of the water penetrates through the reverse osmosis membrane of the reverse osmosis filter assembly under the action of the pressure difference, enters the hollow structure inside the reverse osmosis filter assembly, and is guided into the drain port through the axial hole to form a pure water flow; S4, the unpenetrated liquid continues to flow along the space b, enters the adjusting cavity through the second baffle and the adjusting drain hole, and washes the paddle; S5, the control electromagnet automatically adjusts the magnetic force strength according to the signal of the flow sensor, so as to control the rotation resistance of the control gear magnetic frame; S6, the rotation speed of the paddle is changed by adjusting the revolution and rotation state in the gear transmission relationship, so as to affect the water flow disturbance intensity and the local flow rate; S7, a pressure difference that can be adjusted is established on both sides of the membrane surface, a membrane surface pressure difference adjustment closed-loop feedback mechanism is formed, and consistency control of the filtration flux of each high-flux stainless steel reverse osmosis membrane group is realized.

[0014] Compared with the prior art, the present application has the following advantages: (1) the present application densely stacks the reverse osmosis filter assembly and the support screen in the axial direction inside the stainless steel cylinder, which greatly increases the effective filtration area, and all the reverse osmosis membrane assemblies are provided with independent channels, so that the water flow can simultaneously penetrate through multiple membrane assemblies under the action of the pressure difference, and the water purification flux is greatly improved; (2) in the reverse osmosis process, the flow of the unpenetrated liquid in the support screen continuously scours the surface of the reverse osmosis membrane, effectively removes the attached impurities, automatically cleans the membrane surface, significantly prolongs the service life of the membrane, and reduces the replacement frequency of consumables and the operation and maintenance cost; (3) the water pressure in each reverse osmosis module of the present application can be dynamically adjusted according to the flow, and the regulation mechanism can effectively balance the pressure difference between the modules in the array system, improve the system stability, and avoid the decline of the overall performance due to the low efficiency of a certain assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the driven gear plate of the present application.

[0016] Figure 2 It is a structure schematic view of the water inlet of the present application.

[0017] Figure 3 Structure diagram of the whole structure of the present application.

[0018] Figure 4 Structure diagram of the structure of the sealing strip of the present application.

[0019] Figure 5 Structure diagram of the structure of the first baffle of the present application.

[0020] Figure 6 Structure diagram of the internal structure of the second end cover of the present application.

[0021] Figure 7 Structure diagram of the internal structure of the adjusting cavity of the present application.

[0022] Figure 8 Structure diagram of the structure of the magnetic frame of the control gear of the present application.

[0023] Figure 9 Structure diagram of the structure of the inner guide tube of the present application.

[0024] Figure 10 Structure diagram of the structure of the present application. Figure 9 Structure diagram of the structure of the present application.

[0025] Figure 11 Structure diagram of the structure of the adjusting drainage hole of the present application.

[0026] Figure 12 Structure diagram of the structure of the guide isolation plate of the present application.

[0027] Figure 13 Structure diagram of the structure of the second baffle of the present application.

[0028] Figure 14 Reverse osmosis filter component array diagram of the present application.

[0029] Figure 15 Structure diagram of the structure of the support screen of the present application.

[0030] Figure 16 Sealing connection ring array diagram of the present application.

[0031] In the figure: 101-stainless steel cylinder; 102-first end cover; 103-water inlet; 104-first baffle; 105-sealing rubber strip; 106-second baffle; 107-adjusting cavity; 108-second end cover; 109-adjusting drive ring; 110-adjusting drive sleeve; 111-driven tooth disc; 112-drainage outlet; 113-waste water outlet; 114-connecting rod; 115-outer tooth ring; 116-control gear magnetic frame; 117-inner side guide tube; 118-guide isolation plate; 119-adjusting drainage hole; 120-paddle; 121-paddle support; 122-control gear; 123-electromagnet; 124-reverse osmosis filter assembly; 125-sealing connecting ring; 126-supporting isolation net; 127-outer side guide tube; 128-inner tooth ring. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be further illustrated below in combination with the accompanying drawings. Figures 1-16 The technical solutions of the present application will be further illustrated below in combination with the accompanying drawings.

[0033] The application provides a high-flux stainless steel reverse osmosis membrane group, which comprises a stainless steel cylinder 101, a first end cover 102 and a second baffle 106 are fixedly and sealingly installed at two ends of the stainless steel cylinder 101 respectively, wherein the first end cover 102 is fixedly installed with a water inlet 103 communicating with the inside of the stainless steel cylinder 101; the inside of the stainless steel cylinder 101 is coaxially and alternately stacked with reverse osmosis filter assemblies 124 and support screens 126 along the axial direction of the stainless steel cylinder 101, wherein the reverse osmosis filter assemblies 124 are formed by two circular reverse osmosis membranes in close contact and sealing, so that a hollow space is formed in the reverse osmosis filter assemblies 124, and a circular hole is arranged in the middle of the reverse osmosis filter assemblies 124, all the reverse osmosis filter assemblies 124 are communicated by sealing connecting rings 125, and the sealing connecting rings 125 are used for sealing the circular holes in the middle of the reverse osmosis filter assemblies 124; two sealing rubber strips 105 are fixedly installed on the inner wall of the stainless steel cylinder 101 symmetrically, the two sealing rubber strips 105 are used for fixing and supporting all the support screens 126 and the reverse osmosis filter assemblies 124, and the two sealing rubber strips 105 and all the alternately stacked support screens 126 and reverse osmosis filter assemblies 124 divide the inside of the stainless steel cylinder 101 into a space a and a space b, and the space a and the space b are communicated by the support screens 126. A first baffle 104 is fixedly installed on one end of the inner wall of the stainless steel cylinder 101 located at the first end cover 102, the first baffle 104 communicates with the space a, the first baffle 104 is used for shielding the sealed space b (a circular arc recess is arranged on the side of the first baffle 104 located in the space a, so that the space between the first end cover 102 and the first baffle 104 communicates with the space a), a gap is arranged between the first baffle 104 and the first end cover 102, so that the water inlet 103 communicates with the inside of the stainless steel cylinder 101. The second baffle 106 communicates with the space b, and the second baffle 106 is used for shielding the sealed space a (a circular arc recess is arranged on the side of the second baffle 106 located in the space b, so that the space between the guide isolation plate 118 and the second baffle 106 communicates with the space b), an adjusting cavity 107 is fixedly and sealingly installed on one end of the stainless steel cylinder 101 located at the second baffle 106, a guide isolation plate 118 is fixedly installed on the inner wall of the adjusting cavity 107, a gap is arranged between the guide isolation plate 118 and the second baffle 106, and the space between the guide isolation plate 118 and the second baffle 106 communicates with the space b in the inside of the stainless steel cylinder 101.

[0034] The shaft center position of the guide isolation plate 118 is sealingly and plug-inly provided with a drainage port 112, which is in sealing communication with the interiors of all the reverse osmosis filtering assemblies 124 through the second baffle plate 106. The guide isolation plate 118 is provided with an adjusting drainage hole 119. The lateral sides of the adjusting drainage hole 119 are provided with an inner guide pipe 117 and an outer guide pipe 127. The inner guide pipe 117, the outer guide pipe 127 and the drainage port 112 are coaxially arranged. A space is left between the outer guide pipe 127 and the inner guide pipe 117, which is aligned with the adjusting drainage hole 119. The outer side of the inner guide pipe 117 is rotatably provided with a paddle 120 through a paddle support 121. The circumferential surface of the paddle 120 is fixedly provided with an inner tooth ring 128. The outer side of the inner tooth ring 128 is coaxially provided with an outer tooth ring 115. The outer tooth ring 115 and the inner tooth ring 128 are in meshing transmission through two control gears 122. The two control gears 122 are symmetrically arranged and are both rotatably arranged on a control gear magnetic rack 116. The guide isolation plate 118 is also fixedly provided with an electromagnet 123, which is coaxially arranged with the control gear magnetic rack 116. The side of the control gear magnetic rack 116 facing the electromagnet 123 is embedded with a plurality of circular equidistant arrayed balls. The control gear magnetic rack 116 is in rolling friction cooperation with the electromagnet 123 through the balls, and is in magnetic cooperation with the electromagnet 123. The adjusting cavity 107 is fixedly and sealingly provided with a second end cover 108. The shaft center position of the second end cover 108 is rotatably and sealingly plug-inly provided with an adjusting drive sleeve 110. The outer side of the adjusting drive sleeve 110 is coaxially and fixedly provided with an adjusting drive ring 109 through a connecting rod 114. The adjusting drive ring 109 is coaxially and fixedly cooperated with the outer tooth ring 115.

[0035] The adjusting drive sleeve 110 is rotatably and sealingly arranged on the circumferential surface of the drainage port 112. The second end cover 108 is also fixedly and correspondingly provided with a wastewater port 113. A cavity is left between the adjusting cavity 107 and the second end cover 108. The second end cover 108 is fixedly and correspondingly provided with the wastewater port 113, which is in communication with the cavity. The end of the adjusting drive sleeve 110 outside the second end cover 108 is fixedly provided with a driven gear plate 111. The driven gear plate 111 is driven by a chain in transmission cooperation (the equipment is arranged in an array. The driven gear plates 111 in each equipment are serially driven by the chain).

[0036] The working principle of the high-flux stainless steel reverse osmosis membrane group disclosed by the application is as follows: the water inlet 103 is connected with the water to be treated (the municipal water pipe is connected to the water inlet 103 through a series water pump), the water enters the space between the first end cover 102 and the first baffle 104 through the water inlet 103, and then enters the space a inside the stainless steel cylinder 101, due to the shielding of the two sealing rubber strips 105, the water flows into the space b through the support screen 126 (the support screen 126 is arranged to separate two adjacent reverse osmosis filter assemblies 124, facilitating the flow of water), under the action of water pressure, part of the water passes through the reverse osmosis membrane on the reverse osmosis filter assembly 124, enters the inside of the reverse osmosis filter assembly 124, and then flows to the water outlet 112 through the axis position of the reverse osmosis filter assembly 124 (all reverse osmosis filter assemblies 124 are the same, so that a larger filtering area can be obtained, thereby improving the water flux), the water outlets 112 of all devices are connected in parallel, and the purified pure water is guided to a specified position. The substances intercepted by the reverse osmosis membrane in this process will adhere to the side facing the support screen 126, but since the water at this position is in a flowing state, these intercepted substances will be washed away, thereby ensuring the cleanliness of the reverse osmosis membrane and prolonging the service life.

[0037] When the water enters the inner space b of the stainless steel cylinder 101, it will pass through the second baffle 106, then flow between the guide isolation plate 118 and the second baffle 106, then flow between the inner guide pipe 117 and the outer guide pipe 127 through the adjusting drain hole 119, then flow between the adjusting cavity 107 and the second end cover 108, and finally the wastewater containing the substances intercepted by flushing the surface of the reverse osmosis membrane is discharged through the wastewater outlet 113. All the wastewater outlets 113 are connected in parallel to guide the wastewater to the designated position. However, the paddle 120 rotates during the water flow, which drives the inner tooth ring 128 to rotate, and the inner tooth ring 128 drives the control gear 122 to rotate, which drives the outer tooth ring 115 and the control gear magnetic frame 116 to rotate (the electromagnet 123 is not started). When the filtration pressure needs to be adjusted (adjusting the filtration speed, improving the flux, and each wastewater outlet 112 in the stainless steel cylinder 101 is provided with a flow sensor to monitor the flow of filtered water in each device in real time, and the magnetic force generated by the electromagnet 123 is dynamically adjusted according to the flow condition to ensure that the filtration speed of each device is the same). The driving motor drives all the driven tooth plates 111 in the array of each device to rotate through the chain, which drives the adjusting drive sleeve 110 to rotate, and the adjusting drive sleeve 110 drives the connecting rod 114 and the adjusting drive ring 109 to rotate, which drives the outer tooth ring 115 to rotate, and the outer tooth ring 115 drives the control gear 122 to revolve and rotate, and then part of the power is applied to the inner tooth ring 128, thereby driving the inner tooth ring 128 to rotate, and further driving the paddle 120 to rotate. However, by controlling the magnetic force of the electromagnet 123, the rotational friction between the control gear magnetic frame 116 and the electromagnet 123 can be controlled, and the resistance of the control gear magnetic frame 116 when rotating (i.e., the control gear 122 revolves) can be controlled. When the control gear magnetic frame 116 is completely fixed, the entire power of the outer tooth ring 115 is transmitted to the inner tooth ring 128 through the control gear 122, at which time the rotating speed of the paddle 120 is the fastest. The paddle 120 rotates to drive the water flow in the opposite direction, i.e., to hinder the water flow. At this time, the water pressure in the inner space of the stainless steel cylinder 101 will increase, which will cause the pressure difference between the two sides of the reverse osmosis membrane of the reverse osmosis filtration assembly 124 to increase, thereby improving the filtration speed of the water. Therefore, by controlling the magnetic force of the electromagnet 123, the rotating speed of the paddle 120 can be controlled, i.e., the resistance of the water flow can be controlled, and the filtration speed of the water can be controlled.

[0038] It should be noted that the length of the stainless steel cylinder 101 is not the actual length, in order to facilitate the description, for the length of the shortening, through the way of setting the reverse osmosis filter assembly 124 and the supporting screen 126 along the axial stacking of the stainless steel cylinder 101, the filtering pressure of the reverse osmosis membrane in each reverse osmosis filter assembly 124 can be effectively ensured.

Claims

1. A high-flux stainless steel reverse osmosis membrane module, characterized in that: The stainless steel cylinder (101) includes a first end cap (102) and a second baffle (106) fixedly and sealed at both ends of the stainless steel cylinder (101). The first end cap (102) has a water inlet (103) that communicates with the inside of the stainless steel cylinder (101). Inside the stainless steel cylinder (101), reverse osmosis filter components (124) and support mesh (126) are coaxially stacked alternately along its own axis. The reverse osmosis filter component (124) is formed by two circular reverse osmosis membranes being bonded and sealed together, creating a hollow space inside the reverse osmosis filter component (124). A circular hole is provided in the middle of the reverse osmosis filter component (124). All the reverse osmosis filter components (124) are connected by a sealing ring (125), which is used to seal the circular hole in the middle of the reverse osmosis filter component (124). Two sealing strips (105) are symmetrically fixedly installed on the inner wall of the stainless steel cylinder (101). The two sealing strips (105) are used to fix and support all the support meshes (126) and reverse osmosis filter components (124). The two sealing strips (105) and all the alternately stacked support meshes (126) and reverse osmosis filter components (124) divide the interior of the stainless steel cylinder (101) into space a and space b. Space a and space b are permeablely connected through the support meshes (126). A first baffle (104) is fixedly installed on the inner wall of the stainless steel cylinder (101) at one end of the first end cap (102). The first baffle (104) and Space a is connected, and the first baffle (104) is used to shield and seal space b. A gap is provided between the first baffle (104) and the first end cap (102) to facilitate communication between the inlet (103) and the inside of the stainless steel cylinder (101); the second baffle (106) is connected to space b and is used to shield and seal space a. An adjustment cavity (107) is fixedly and sealed at one end of the stainless steel cylinder (101) located at the second baffle (106). A guide isolation plate (118) is fixedly installed on the inner wall of the adjustment cavity (107). A gap is provided between the guide isolation plate (118) and the second baffle (106). 8) The space between the guide isolation plate (106) and the second baffle (106) is connected to the space b inside the stainless steel cylinder (101); the guide isolation plate (118) is fixedly and sealed with a drain port (112) at the axial position. The drain port (112) passes through the second baffle (106) and is sealed to the interior of all reverse osmosis filter components (124). The guide isolation plate (118) is provided with an adjustment drain hole (119). An inner guide pipe (117) and an outer guide pipe (127) are provided on the side of the adjustment drain hole (119). The inner guide pipe (117), the outer guide pipe (127) and the drain port (112) are coaxially arranged. A space is left between the pipe (127) and the inner guide pipe (117) to be aligned with the adjustment drain hole (119); the outer side of the inner guide pipe (117) is rotatably mounted with a blade (120) via a blade bracket (121), and an inner toothed ring (128) is fixedly sleeved on the circumferential surface of the blade (120). An outer toothed ring (115) is coaxially arranged on the outer side of the inner toothed ring (128). The outer toothed ring (115) and the inner toothed ring (128) are driven by two control gears (122) meshing. The two control gears (122) are symmetrically arranged, and both control gears (122) are rotatably mounted on the control gear magnetic frame (116).

2. The high-flux stainless steel reverse osmosis membrane module according to claim 1, characterized in that: An electromagnet (123) is also fixedly installed on the guide isolation plate (118). The electromagnet (123) and the control gear magnetic frame (116) are coaxially arranged. The side of the control gear magnetic frame (116) facing the electromagnet (123) is embedded with multiple circular equidistant arrays of balls. The control gear magnetic frame (116) and the electromagnet (123) are engaged by rolling friction through the balls. At the same time, the control gear magnetic frame (116) and the electromagnet (123) are engaged by magnetic force.

3. A high-flux stainless steel reverse osmosis membrane module according to claim 2, characterized in that: A second end cap (108) is fixedly and sealed on the adjustment chamber (107). An adjustment drive sleeve (110) is inserted into the axial position of the second end cap (108) for rotational sealing. An adjustment drive ring (109) is fixedly and coaxially on the outside of the adjustment drive sleeve (110) through a connecting rod (114). The adjustment drive ring (109) is coaxially and fixedly engaged with the external toothed ring (115).

4. A high-flux stainless steel reverse osmosis membrane module according to claim 3, characterized in that: The adjusting drive sleeve (110) is rotated and sealed on the circumferential surface of the drain outlet (112), and the wastewater outlet (113) is fixedly provided on the second end cover (108). A cavity is left between the adjusting cavity (107) and the second end cover (108), and the wastewater outlet (113) communicating with the cavity is fixedly provided on the second end cover (108). The driven toothed disc (111) is fixedly sleeved on one end of the adjustment drive sleeve (110) located outside the second end cover (108), and is driven by a chain that is in transmission cooperation with the driven toothed disc (111).

5. A method for controlling dynamic pressure equalization using a high-flux stainless steel reverse osmosis membrane module as described in claim 4, characterized in that, Includes the following steps: S1. Turn on the water inlet system so that the treated water enters the front end of the stainless steel cylinder (101) through the water inlet (103) and forms a pre-flow cavity between the first end cover (102) and the first baffle (104); S2. Water flows through the first baffle (104) into space a inside the stainless steel cylinder (101), and then seeps into space b through the supporting mesh (126). S3. Under the action of pressure difference, some water passes through the reverse osmosis membrane of the reverse osmosis filter module (124), enters the hollow structure inside the reverse osmosis filter module (124), and is introduced into the drain outlet (112) through the central circular hole to form a pure water flow. S4. The unpermeable liquid continues to flow along space b, enters the regulating chamber (107) through the second baffle (106) and the regulating drain hole (119), and washes the blades (120). S5. The control electromagnet (123) automatically adjusts the magnetic strength according to the flow sensor signal, thereby controlling the rotational resistance of the control gear magnetic frame (116); S6. By adjusting the revolution and rotation states in the gear transmission relationship, the rotation speed of the blade (120) is changed, thereby affecting the water flow disturbance intensity and local flow velocity; S7. An adjustable pressure difference is established on both sides of the membrane surface, forming a closed-loop feedback mechanism for membrane pressure difference regulation, thereby achieving consistent control of the filtration flux of each high-flux stainless steel reverse osmosis membrane module.

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