A device for removing colloidal contaminants from a reverse osmosis membrane cleaning solution

Abstract

The utility model provides a kind of colloidal pollutant removal device in reverse osmosis membrane cleaning solution, it is related to reverse osmosis membrane cleaning solution technical field, including cleaning mechanism, the bottom of the cleaning mechanism is fixedly installed with support structure;The cleaning mechanism includes support plate, the top of the support plate is fixedly installed with box, in the utility model, device is provided by servo motor drive cam operation's scraper cleaning subassembly, servo motor drives cam rotation, when rotating and contact with movable plate, movable plate is forced to move down, so that connecting rod slides on the inner wall of sealing cap, and scraper is forced to move up and down, and then reciprocatingly on membrane surface is scratched, this can directly effectively remove the colloidal pollutant closely attached on membrane surface, reduce the pollutant accumulation on membrane surface, avoid the filtration resistance rise and flux decline due to pollutant accumulation, compared with traditional backwashing system cleaning effect is more remarkable, reduce the frequency of depth chemical cleaning.

Description

Technical Field

[0001] This utility model relates to the field of reverse osmosis membrane cleaning solution technology, and in particular to a device for removing colloidal contaminants from reverse osmosis membrane cleaning solution. Background Technology

[0002] Reverse osmosis membrane cleaning solution is a chemical solution specifically designed for cleaning and maintaining reverse osmosis membrane systems.

[0003] The reverse osmosis membrane cleaning solution colloidal contaminant removal device is used to separate contaminants.

[0004] The existing electrical automation wiring structure has the following shortcomings:

[0005] Existing technologies present numerous inconveniences when cleaning filter units. While traditional backwashing systems can clean the membrane surface to some extent, their cleaning effect is limited when dealing with colloidal contaminants that are tightly adhered to the surface. Colloidal contaminants are sticky and easily form a dense fouling layer on the membrane surface. As operating time increases, even with frequent backwashing, contaminants continue to accumulate, leading to a continuous increase in membrane filtration resistance and a significant decrease in flux. At this point, deep cleaning often requires disassembling the membrane module for chemical cleaning, which is complex and time-consuming. The disassembly process may also damage the membrane module, affecting its service life and filtration performance, which greatly limits the efficient and stable operation of the colloidal contaminant removal device in the reverse osmosis membrane cleaning solution. Utility Model Content

[0006] This invention reduces the accumulation of pollutants on the membrane surface, avoiding increased filtration resistance and decreased flux due to pollutant accumulation, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a device for removing colloidal contaminants from reverse osmosis membrane cleaning fluid, comprising a cleaning mechanism, the bottom of which is fixedly equipped with a support structure; the cleaning mechanism includes a support plate, the top of which is fixedly equipped with a housing, the top of which is provided with a slot, the inner wall of which is fixedly connected with a block, the outer wall of which is fixedly connected with a sealing cover, the top of which is fixedly connected with a set of fixing plates, the inner wall of which is movably inserted with a set of cams, one of which is fixedly equipped with a servo motor on its outer wall, the inner wall of which is slidably connected with a connecting rod, and the bottom end face of which is fixedly connected with a scraper. Through the above components, the membrane surface can be repeatedly scraped, effectively reducing the accumulation of contaminants on the membrane surface.

[0008] Preferably, a PLC controller is fixedly installed on the front of the housing, and the output end of the servo motor is fixedly connected to one end of the cam. The PLC controller is electrically connected to the components to control the opening and closing of multiple components.

[0009] Preferably, a set of sliding rods is fixedly connected to the top of the sealing cover, and a movable plate is fixedly connected to the shaft end of the sliding rods. The bottom of the movable plate is fixedly connected to the top of the connecting rod. The sliding rods ensure that the movable plate and the connecting rod can move stably up and down, thus playing a guiding role.

[0010] Preferably, the outer wall of the slide bar is fitted with a set of first springs. The first springs enable the movable plate and the connecting rod to be reset, so that the movable plate can be reset to a suitable height so that it can contact the cam again and the scraper can complete the next scraping operation normally.

[0011] Preferably, a set of sliders is slidably connected to the inner wall of the housing, and a set of sealing gaskets is fixedly connected to the inner wall of the sliders. Microfiltration membranes and ultrafiltration membranes are respectively fixedly connected to the inner walls of the sealing gaskets. Bolts are threaded through the front of each slider, and the outer walls of the bolts are threaded through the inner wall of the housing. The sealing gaskets increase the sealing performance at the connection between the microfiltration membranes and ultrafiltration membranes and the housing. The sliders and bolts facilitate the user's disassembly and replacement of the microfiltration membranes and ultrafiltration membranes.

[0012] Preferably, a storage tank is fixedly installed on the top of the support plate, and an inlet pipe is fixedly connected to the top of the storage tank. A movable cover is movably inserted into the inner wall of the inlet pipe. A first centrifugal pump is fixedly connected to one side of the outer wall of the tank. A connecting pipe is fixedly connected to the input end of the first centrifugal pump. The connecting pipe is connected to the inside of the storage tank. Through the first centrifugal pump and the connecting pipe, the reverse osmosis membrane cleaning solution containing colloidal contaminants in the storage tank can be pumped into the tank for filtration and removal.

[0013] Preferably, a transparent plate is fixedly connected to the front of the storage tank, and a second centrifugal pump is fixedly connected to the outer wall of the tank. The transparent plate allows the user to easily view the liquid level inside the storage tank.

[0014] Preferably, the support structure includes support legs, each of which has a damper fixedly installed on its inner wall, a second spring sleeved on the outer wall of each damper, and a movable rod fixedly connected to the shaft end of each damper. The damper, the second spring, and the movable rod together improve the stability of the box and support plate during operation.

[0015] Preferably, the bottom of each support leg is fixedly connected with a rubber pad, and the top end face of the movable rod is fixedly connected to the bottom of the support plate. The rubber pads and support legs improve the overall stability during use and prevent displacement.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, the device is equipped with a scraper cleaning assembly driven by a servo motor to rotate the cam. The servo motor drives the cam to rotate. When the cam rotates to contact the movable plate, the movable plate is forced to move downward, causing the connecting rod to slide up and down on the inner wall of the sealing cover. The scraper is also forced to move up and down, thereby reciprocating to scrape the membrane surface. This can directly and effectively remove colloidal pollutants that are tightly attached to the membrane surface, reduce the accumulation of pollutants on the membrane surface, and avoid the increase in filtration resistance and decrease in flux due to the accumulation of pollutants. Compared with the traditional backwashing system, the cleaning effect is more significant and the frequency of deep chemical cleaning is reduced.

[0018] 2. In this utility model, the microfiltration membrane and ultrafiltration membrane are connected by a slider and bolts. The sealing gasket on the inner wall of the slider increases the sealing performance at the connection between the membrane and the housing. When the membrane assembly needs to be replaced, simply unscrew the bolts and slide the slider with the microfiltration membrane and ultrafiltration membrane out of the housing using the handle. The operation is simple and convenient, making it easy for users to maintain and update the membrane assembly, extending the service life of the entire device, and ensuring the stability of the filtration effect. The support structure adopts a combination design of support legs, dampers, second springs, anti-slip pads, and movable rods, which makes the housing and support plate more stable during operation and also increases the friction with the ground, preventing the equipment from shifting during use. Attached Figure Description

[0019] Figure 1 This invention provides a perspective view of the main structure of a device for removing colloidal contaminants from reverse osmosis membrane cleaning solution.

[0020] Figure 2 An enlarged perspective view of the internal interconnected structure of the support plate in a reverse osmosis membrane cleaning fluid removal device is provided for this utility model.

[0021] Figure 3 An enlarged perspective view of the slot-connected structure in a reverse osmosis membrane cleaning fluid removal device is provided for this utility model.

[0022] Figure 4 An enlarged perspective view of the cam-connected structure in a reverse osmosis membrane cleaning fluid removal device is provided for this utility model.

[0023] Figure 5An enlarged perspective view of the slider connection structure in a reverse osmosis membrane cleaning fluid removal device is provided for this utility model.

[0024] Figure 6 This invention provides an enlarged perspective view of the structure connecting the support legs in a device for removing colloidal contaminants from reverse osmosis membrane cleaning solution.

[0025] Legend: 1. Cleaning Mechanism; 101. Support Plate; 102. PLC Controller; 103. Sealing Cover; 104. First Centrifugal Pump; 105. Connecting Pipe; 106. Storage Tank; 107. Inlet Pipe; 108. Transparent Plate; 109. Slot; 110. Microfiltration Membrane; 111. Ultrafiltration Membrane; 112. Second Centrifugal Pump; 113. Servo Motor; 114. Fixing Plate; 115. Locking Block; 116. Connecting Rod; 117. Slide Rod; 118. First Spring; 119. Movable Plate; 120. Cam; 121. Slider; 122. Sealing Gasket; 123. Bolt; 124. Housing; 125. Scraper; 2. Support Structure; 201. Support Leg; 202. Movable Rod; 203. Damper; 204. Second Spring; 205. Rubber Pad. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Please see Figures 1-6 This utility model provides a technical solution: a device for removing colloidal contaminants from reverse osmosis membrane cleaning solution, including a cleaning mechanism 1, with a support structure 2 fixedly installed at the bottom of the cleaning mechanism 1; the cleaning mechanism 1 includes a support plate 101, with a housing 124 fixedly installed on the top of the support plate 101, and slots 109 opened on the top of the housing 124, with a locking block 115 fixedly connected to the inner wall of each slot 109, and a sealing cover 103 fixedly connected to the outer wall of each locking block 115, with a set of fixing plates 114 fixedly connected to the top of the sealing cover 103, and a set of cams 120 movably inserted into the inner wall of the fixing plate 114, with a servo motor 113 fixedly installed on the outer wall of one of the fixing plates 114, and a connecting rod 116 slidably connected to the inner wall of the sealing cover 103, with a scraper 125 fixedly connected to the bottom end face of the connecting rod 116. Through the above components, the membrane surface can be repeatedly scraped, effectively reducing the accumulation of contaminants on the membrane surface.

[0029] like Figure 2 As shown, a PLC controller 102 is fixedly installed on the front of the housing 124. The output end of the servo motor 113 is fixedly connected to one end of the cam 120. The PLC controller 102 is electrically connected to the components to control the opening and closing of multiple components.

[0030] like Figure 4 As shown, a set of slide rods 117 are fixedly connected to the top of the sealing cover 103. A movable plate 119 is fixedly connected to the shaft end of the slide rod 117. The bottom of the movable plate 119 is fixedly connected to the top of the connecting rod 116. The slide rods 117 ensure that the movable plate 119 and the connecting rod 116 can move up and down stably, thus playing a guiding role.

[0031] like Figure 4 As shown, a set of first springs 118 are sleeved on the outer wall of the slide bar 117. Through the first springs 118, the movable plate 119 and the connecting rod 116 can be reset, so that the movable plate 119 is reset to a suitable height so that it can contact the cam 120 again, and the scraper 125 can complete the next scraping operation normally.

[0032] like Figure 5 As shown, a set of sliders 121 are slidably connected to the inner wall of the housing 124. A set of sealing gaskets 122 are fixedly connected to the inner wall of the sliders 121. Microfiltration membranes 110 and ultrafiltration membranes 111 are fixedly connected to the inner walls of the sealing gaskets 122 respectively. Bolts 123 are threaded through the front of the sliders 121. The outer walls of the bolts 123 are threaded through the inner wall of the housing 124. The sealing gaskets 122 are used to increase the sealing performance at the connection between the microfiltration membranes 110 and ultrafiltration membranes 111 and the housing 124. The sliders 121 and bolts 123 are used to facilitate the user to disassemble and replace the microfiltration membranes 110 and ultrafiltration membranes 111.

[0033] like Figure 2 As shown, a storage tank 106 is fixedly installed on the top of the support plate 101. An inlet pipe 107 is fixedly connected to the top of the storage tank 106. A movable cover is movably inserted into the inner wall of the inlet pipe 107. A first centrifugal pump 104 is fixedly connected to one side of the outer wall of the tank body 124. A connecting pipe 105 is fixedly connected to the input end of the first centrifugal pump 104. The connecting pipe 105 is connected to the inside of the storage tank 106. Through the first centrifugal pump 104 and the connecting pipe 105, the reverse osmosis membrane cleaning solution containing colloidal contaminants in the storage tank 106 can be pumped into the tank body 124 for filtration and removal.

[0034] like Figure 2 and Figure 3As shown, a transparent plate 108 is fixedly connected to the front of the storage tank 106, and a second centrifugal pump 112 is fixedly connected to the outer wall of the tank body 124. The transparent plate 108 allows users to easily view the liquid level inside the storage tank 106.

[0035] like Figure 6 As shown, the support structure 2 includes support legs 201. Each support leg 201 has a damper 203 fixedly installed on its inner wall. Each damper 203 has a second spring 204 sleeved on its outer wall. Each damper 203 has a movable rod 202 fixedly connected to its shaft end. Through the damper 203, the second spring 204 and the movable rod 202, the stability of the box 124 and the support plate 101 during operation can be improved.

[0036] like Figure 6 As shown, rubber pads 205 are fixedly connected to the bottom of each support leg 201, and the top end face of the movable rod 202 is fixedly connected to the bottom of the support plate 101. The rubber pads 205 and the support legs 201 can improve the overall stability during use and prevent displacement.

[0037] The operating method and working principle of this device are as follows: The reverse osmosis membrane cleaning solution containing colloidal contaminants is first stored in storage tank 106. The first centrifugal pump 104 is started through the control panel on the PLC controller 102. Under the action of the connecting pipe 105, the cleaning solution is pumped from storage tank 106 into tank 124 to prepare for subsequent filtration. Tank 124 is equipped with microfiltration membrane 110 and ultrafiltration membrane 111. When the cleaning solution passes through microfiltration membrane 110 and ultrafiltration membrane 111, colloidal contaminants are intercepted, achieving filtration separation. The filtered clear liquid is discharged to the outside through the second centrifugal pump 112. At the same time as the cleaning solution is being filtered, the PLC controller 102 controls the servo motor 113 to start, and its output drives a set of cams 120 to rotate. When the cams 120 rotate... When the moving plate 119 comes into contact with the movable plate 119, the movable plate 119 moves downward under force, causing the connecting rod 116 connected to it to slide downward on the inner wall of the sealing cover 103. At the same time, a set of scrapers 125 also moves downward under force to scrape the membrane surface and remove tightly attached colloidal contaminants. The slide rod 117 and the first spring 118 ensure that the movable plate 119 and the connecting rod 116 move up and down stably and can be reset so that the scrapers 125 can reciprocate. Using the mechanical transmission principle, the scrapers 125 are reciprocated to clean the surface of the microfiltration membrane 110 and the ultrafiltration membrane 111, effectively reducing the accumulation of contaminants and preventing the filtration resistance from rising. In addition, the scraper 125 is made of polytetrafluoroethylene. This type of material can effectively scrape off contaminants and reduce damage to the membrane, while having moderate hardness and a certain degree of flexibility.

[0038] The PLC controller 102, the first centrifugal pump 104, the second centrifugal pump 112, and the servo motor 113 used in this application are all common conventional equipment on the market and are well known to those skilled in the art. In this application, the above equipment is used in a conventional manner without any improvement to its structure and function. As for their settings, installation, and electrical connection methods, those skilled in the art can debug and operate them according to the corresponding product instruction manuals, so they will not be described in detail here.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A device for removing colloidal contaminants from reverse osmosis membrane cleaning solution, characterized in that, Includes a cleaning mechanism (1), and a support structure (2) is fixedly installed at the bottom of each cleaning mechanism (1). The cleaning mechanism (1) includes a support plate (101), a box (124) is fixedly installed on the top of the support plate (101), a slot (109) is opened on the top of the box (124), a block (115) is fixedly connected to the inner wall of the slot (109), a sealing cover (103) is fixedly connected to the outer wall of the block (115), a set of fixing plates (114) is fixedly connected to the top of the sealing cover (103), a set of cams (120) is movably inserted into the inner wall of the fixing plate (114), a servo motor (113) is fixedly installed on the outer wall of one of the fixing plates (114), a connecting rod (116) is slidably connected to the inner wall of the sealing cover (103), and a scraper (125) is fixedly connected to the bottom end face of the connecting rod (116).

2. The device for removing colloidal contaminants from reverse osmosis membrane cleaning solution according to claim 1, characterized in that: A PLC controller (102) is fixedly installed on the front of the housing (124), and the output end of the servo motor (113) is fixedly connected to one end of the cam (120).

3. The device for removing colloidal contaminants from reverse osmosis membrane cleaning solution according to claim 1, characterized in that: A set of slide rods (117) is fixedly connected to the top of the sealing cover (103), and a movable plate (119) is fixedly connected to the shaft end of the slide rods (117). The bottom of the movable plate (119) is fixedly connected to the top of the connecting rod (116).

4. The device for removing colloidal contaminants from reverse osmosis membrane cleaning solution according to claim 3, characterized in that: The outer wall of the slide bar (117) is fitted with a set of first springs (118).

5. The device for removing colloidal contaminants from reverse osmosis membrane cleaning solution according to claim 1, characterized in that: A set of sliders (121) are slidably connected to the inner wall of the box (124). A set of sealing gaskets (122) are fixedly connected to the inner wall of the sliders (121). Microfiltration membranes (110) and ultrafiltration membranes (111) are fixedly connected to the inner wall of the sealing gaskets (122). Bolts (123) are threaded through the front of the sliders (121). The outer wall of the bolts (123) is threaded through the inner wall of the box (124).

6. The device for removing colloidal contaminants from reverse osmosis membrane cleaning solution according to claim 1, characterized in that: A storage tank (106) is fixedly installed on the top of the support plate (101). An inlet pipe (107) is fixedly connected to the top of the storage tank (106). A movable cover is movably inserted into the inner wall of the inlet pipe (107). A first centrifugal pump (104) is fixedly connected to one side of the outer wall of the box body (124). A connecting pipe (105) is fixedly connected to the input end of the first centrifugal pump (104). The connecting pipe (105) is connected to the inside of the storage tank (106).

7. The device for removing colloidal contaminants from reverse osmosis membrane cleaning solution according to claim 6, characterized in that: A transparent plate (108) is fixedly connected to the front of the storage box (106), and a second centrifugal pump (112) is fixedly connected to the outer wall of the box body (124).

8. The device for removing colloidal contaminants from reverse osmosis membrane cleaning solution according to claim 1, characterized in that: The support structure (2) includes a support leg (201), and a damper (203) is fixedly installed on the inner wall of the support leg (201). A second spring (204) is sleeved on the outer wall of the damper (203), and a movable rod (202) is fixedly connected to the shaft end of the damper (203).

9. The device for removing colloidal contaminants from reverse osmosis membrane cleaning solution according to claim 8, characterized in that: The bottom of each support leg (201) is fixedly connected to a rubber pad (205), and the top end face of the movable rod (202) is fixedly connected to the bottom of the support plate (101).

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