Reverse osmosis device for treating wastewater with extremely high total nitrogen
By introducing a servo motor-driven scraper brush to clean the inner wall of the filter cartridge in the reverse osmosis unit, and combining it with an activated carbon adsorption layer and a reverse osmosis membrane, the problem of impurity accumulation in the filter cartridge is solved, improving the practicality of the unit and the water filtration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SUJING ENVIRONMENTAL ENG
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-23
AI Technical Summary
Existing reverse osmosis devices lack a cleaning structure during the filtration process, leading to the accumulation of impurities inside the filter cartridge, which affects the filtration effect and efficiency.
A reverse osmosis device including a filter assembly and an installation assembly was designed. A scraper brush driven by a servo motor cleans the inner wall of the filter cartridge, and the filtration effect is improved by using an activated carbon adsorption layer and a reverse osmosis membrane.
It effectively avoids the accumulation of impurities, improves the practicality and efficiency of the reverse osmosis device, and enhances the water filtration effect.
Smart Images

Figure CN224394724U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology with extremely high total nitrogen, specifically a reverse osmosis device for treating wastewater with extremely high total nitrogen. Background Technology
[0002] Extremely high total nitrogen wastewater treatment refers to the treatment of industrial organic wastewater with a chemical oxygen demand (COD) exceeding 100 mg / L, or with biochemical oxygen demand (BOD), suspended solids, and animal and vegetable oil content exceeding national standards. The high concentrations of nitrogen compounds in this wastewater mainly originate from process water containing ammonia nitrogen and nitrate nitrogen discharged during the production processes of industries such as petroleum processing, chemical raw material and product manufacturing, including synthetic ammonia, methanol synthesis tower stripping liquid, and wastewater from ammonium nitrate fertilizer plants. In addition, some decomposition products of domestic sewage also contain a considerable amount of nitrogenous substances. To improve the treatment efficiency of extremely high total nitrogen wastewater, a reverse osmosis device is needed; however, existing reverse osmosis devices still have the following shortcomings:
[0003] When existing reverse osmosis devices are in use, most of them lack a cleaning structure for the internal impurities of the filter cartridge during the wastewater filtration process. As a result, impurities tend to accumulate in the filter cartridge after long-term use, which affects the filtration effect and leads to a decrease in the practicality and efficiency of the reverse osmosis device. Utility Model Content
[0004] The purpose of this invention is to provide a reverse osmosis device for treating wastewater with extremely high total nitrogen, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a reverse osmosis device for treating wastewater with extremely high total nitrogen, comprising a filter box and a filter assembly. The filter box has an upper mounting cover. The filter assembly is located inside the upper part of the filter box and includes a mounting block, a mounting groove, a mounting connecting block, a receiving block, a filter cylinder, a servo motor, a support rod, a mounting crossbar, and a scraper brush. The mounting block has a mounting groove inside, and a mounting connecting block is connected inside the mounting groove. A receiving block is located at the upper end of the mounting connecting block, and a filter cylinder is located outside the receiving block. A servo motor is mounted in the middle of the upper part of the mounting cover, and a support rod is connected to the front end of the servo motor. A mounting crossbar is located outside the support rod, and a scraper brush is mounted at the front end of the mounting crossbar. The filter assembly is located inside the lower part of the filter box.
[0006] Furthermore, the internal dimensions of the mounting docking groove are adapted to the external dimensions of the mounting docking block, and the mounting docking block is embeddedly connected to the mounting block through the mounting docking groove.
[0007] Furthermore, there are two receiving blocks, and the two receiving blocks are symmetrically arranged on both sides of the upper end of the filter cylinder with respect to the central axis of the front of the filter cylinder.
[0008] Furthermore, the scraper brush is embedded in the filter cylinder, and the outer side of the scraper brush is in close contact with the inner wall of the filter cylinder.
[0009] Furthermore, the installation assembly includes a limiting cylinder, a limiting rod, and a return spring. The limiting cylinder is connected to the limiting rod, and the limiting rod is provided inside the limiting cylinder.
[0010] Furthermore, the installation assembly also includes an activated carbon adsorption layer, limiting through holes, and a reverse osmosis membrane. The activated carbon adsorption layer is provided at the lower end of the filter box, and limiting through holes are opened on the inner and outer sides of the activated carbon adsorption layer. A reverse osmosis membrane is distributed at the lower end of the activated carbon adsorption layer.
[0011] Furthermore, the limiting rod and the limiting cylinder are embedded in each other, and the limiting rod is elastically connected to the limiting cylinder through a return spring.
[0012] Furthermore, the external dimensions of the limiting rod are adapted to the internal dimensions of the limiting through hole, and the limiting rod is connected to the activated carbon adsorption layer through the limiting through hole.
[0013] This invention provides a reverse osmosis device for treating wastewater with extremely high total nitrogen content, which has the following advantages:
[0014] 1. This utility model, through the setting of the filter component, enables the installation docking block to be limited and installed inside the installation block when using a reverse osmosis device for treating extremely high total nitrogen wastewater. This completes the docking installation of the receiving block, thereby limiting the filter cartridge inside the filter box. The servo motor at the top of the installation cover drives the support rod to rotate, causing the installation crossbar connected to the outside of the support rod to rotate as well. This, in turn, drives the scraper brush installed at the front end of the installation crossbar to clean the inner wall of the filter cartridge, thereby preventing impurities from accumulating on the inner wall of the filter cartridge and improving the overall practicality and efficiency of the reverse osmosis device.
[0015] 2. This utility model, through the installation of the components, enables the use of a reverse osmosis device for treating extremely high total nitrogen wastewater. A return spring allows the limiting rod to elastically connect with the limiting cylinder, allowing the activated carbon adsorption layer to be installed inside the filter box. The limiting rod, in conjunction with the limiting through-hole, secures the activated carbon adsorption layer inside the filter box. Similarly, the reverse osmosis membrane is fixedly installed below the activated carbon adsorption layer. The combination of the activated carbon adsorption layer and the reverse osmosis membrane enhances the water filtration effect, improving water quality and enhancing the overall practicality and efficiency of the reverse osmosis device. Attached Figure Description
[0016] Fig. 1This is a three-dimensional structural diagram of a reverse osmosis device for treating wastewater with extremely high total nitrogen according to the present invention;
[0017] Fig. 2 This is a three-dimensional unfolded structural diagram of the filter assembly of a reverse osmosis device for treating wastewater with extremely high total nitrogen according to this utility model;
[0018] Fig. 3 This is a three-dimensional sectional view of the installation components of a reverse osmosis device for treating wastewater with extremely high total nitrogen, according to this utility model.
[0019] In the diagram: 1. Filter box; 2. Mounting top cover; 3. Filter assembly; 301. Mounting block; 302. Mounting docking groove; 303. Mounting docking block; 304. Receiving block; 305. Filter cartridge; 306. Servo motor; 307. Support rod; 308. Mounting crossbar; 309. Scraper brush; 4. Mounting assembly; 401. Limiting cylinder; 402. Limiting rod; 403. Reset spring; 404. Activated carbon adsorption layer; 405. Limiting through hole; 406. Reverse osmosis membrane. Detailed Implementation
[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0021] like Figs. 1 to 3As shown, a reverse osmosis device for treating wastewater with extremely high total nitrogen includes a filter box 1 and a filter assembly 3. The filter box 1 has a mounting cover 2 at its upper end. The filter assembly 3 is located inside the upper part of the filter box 1. The filter assembly 3 includes a mounting block 301, a mounting docking groove 302, a mounting docking block 303, a receiving block 304, a filter cylinder 305, a servo motor 306, a support rod 307, a mounting crossbar 308, and a scraper brush 309. The mounting block 301 has a mounting docking groove 302 inside, and the mounting docking groove 302 is connected to the mounting docking block 303. The upper end is provided with a receiving block 304, and a filter cartridge 305 is provided on the outside of the receiving block 304. A servo motor 306 is installed in the middle of the upper end of the mounting top cover 2, and a support rod 307 is connected to the front end of the servo motor 306. A mounting crossbar 308 is provided on the outside of the support rod 307, and a scraper brush 309 is installed at the front end of the mounting crossbar 308. The internal dimensions of the mounting docking groove 302 are adapted to the external dimensions of the mounting docking block 303, and the mounting docking block 303 is embeddedly connected to the mounting block 301 through the mounting docking groove 302. There are two receiving blocks 304. 304 is symmetrically arranged on both sides of the upper end of the filter cylinder 305 along the central axis of the front of the filter cylinder 305. The scraper brush 309 is embedded in the filter cylinder 305, and the outer side of the scraper brush 309 is tightly fitted to the inner wall of the filter cylinder 305. The mounting block 301 is fixedly installed inside the upper end of the filter box 1 by fastening bolts. The internal dimensions of the mounting docking groove 302 opened inside the mounting block 301 are adapted to the external dimensions of the mounting docking block 303 added at the lower end of the receiving block 304. Thus, the mounting docking block 303 is limited and installed inside the mounting block 301 through the mounting docking groove 302, thereby completing the bearing... The docking installation of the connecting block 304 causes the filter cartridge 305 to be positioned inside the filter box 1. The servo motor 306 is fixedly installed in the middle of the upper end of the mounting top cover 2. The output shaft of the servo motor 306 is connected to the support rod 307 through a coupling. The operation of the servo motor 306 drives the support rod 307 to rotate, causing the mounting crossbar 308 connected to the outside of the support rod 307 to rotate as well. This drives the scraper brush 309 installed at the front end of the mounting crossbar 308 to clean the inner wall of the filter cartridge 305, thereby preventing impurities from accumulating on the inner wall of the filter cartridge 305 and improving the overall practicality and efficiency of the reverse osmosis device.
[0022] like Fig. 1 and Fig. 3As shown, an installation assembly 4 is provided at the lower end of the filter box 1. The installation assembly 4 includes a limiting cylinder 401, a limiting rod 402, and a return spring 403. The limiting rod 402 is connected inside the limiting cylinder 401, and the return spring 403 is provided inside the limiting cylinder 401 outside the limiting rod 402. The installation assembly 4 also includes an activated carbon adsorption layer 404, a limiting through hole 405, and a reverse osmosis membrane 406. The activated carbon adsorption layer 404 is provided at the lower end of the filter box 1, and the limiting through hole 405 is opened on the inner and outer sides of the activated carbon adsorption layer 404. The reverse osmosis membrane 406 is distributed at the lower end of the activated carbon adsorption layer 404. The limiting rod 402 is embedded in the limiting cylinder 401, and the limiting rod 402 is elastically connected to the limiting cylinder 401 through the return spring 403. The outer dimensions of the limiting rod 402 are adapted to the inner dimensions of the limiting through hole 405, and the limiting rod 402 is limited by the limiting through hole 405. The through hole 405 is connected to the activated carbon adsorption layer 404. The limiting cylinder 401 is fixedly installed on the lower part of the outside of the filter box 1 by fastening bolts. The limiting rod 402 is installed inside the limiting cylinder 401, and the limiting rod 402 is elastically connected to the limiting cylinder 401 by the return spring 403. The activated carbon adsorption layer 404 is installed inside the filter box 1. The internal size of the limiting through hole 405 opened on the outside of the activated carbon adsorption layer 404 is adapted to the external size of the limiting rod 402. Thus, the activated carbon adsorption layer 404 is fixedly installed inside the filter box 1 by the limiting rod 402 and the limiting through hole 405. Similarly, the reverse osmosis membrane 406 is fixedly installed at the lower end of the activated carbon adsorption layer 404. The activated carbon adsorption layer 404 and the reverse osmosis membrane 406 are used to improve the filtration effect of water, thereby improving the quality of water and enhancing the overall practicality and efficiency of the reverse osmosis device.
[0023] In summary, the reverse osmosis device for treating extremely high total nitrogen wastewater is used by first fixing the mounting top cover 2 to the upper end of the filter box 1. The mounting top cover 2 increases the sealing of the filter box 1 during use. The mounting docking slot 302 limits the mounting docking block 303 to be installed inside the mounting block 301, thereby completing the docking installation of the receiving block 304. This causes the filter cartridge 305 to be limited inside the filter box 1. The servo motor 306 at the upper end of the mounting top cover 2 drives the support rod 307 to rotate, causing the mounting crossbar 308 connected to the outside of the support rod 307 to rotate as well. This, in turn, drives the scraper brush 309 installed at the front end of the mounting crossbar 308 to... The inner wall of the filter cartridge 305 is cleaned to prevent impurities from accumulating on it. Then, the limiting rod 402 is elastically connected to the limiting cylinder 401 by the return spring 403, and the activated carbon adsorption layer 404 is installed inside the filter box 1. The activated carbon adsorption layer 404 is fixedly installed inside the filter box 1 by the limiting rod 402 and the limiting through hole 405. Similarly, the reverse osmosis membrane 406 is fixedly installed at the lower end of the activated carbon adsorption layer 404. The activated carbon adsorption layer 404 and the reverse osmosis membrane 406 are used to improve the filtration effect of water, thereby improving the quality of water and enhancing the overall practicality and efficiency of the reverse osmosis device.
[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A reverse osmosis device for treating wastewater with extremely high total nitrogen, comprising a filter box (1) and a filter assembly (3), characterized in that, The filter box (1) is provided with a mounting top cover (2) at its upper end. A filter assembly (3) is provided inside the upper part of the filter box (1). The filter assembly (3) includes a mounting block (301), a mounting docking groove (302), a mounting docking block (303), a receiving block (304), a filter cylinder (305), a servo motor (306), a support rod (307), a mounting crossbar (308), and a scraper brush (309). The mounting block (301) has a mounting docking groove (302) inside, and the mounting docking groove (302) is connected to... The mounting docking block (303) is installed, and a receiving block (304) is provided on the upper end of the mounting docking block (303). At the same time, a filter cylinder (305) is provided on the outside of the receiving block (304). A servo motor (306) is installed in the middle of the upper end of the mounting top cover (2). A support rod (307) is connected to the front end of the servo motor (306). An installation crossbar (308) is provided on the outside of the support rod (307). A scraper brush (309) is installed at the front end of the installation crossbar (308). An installation assembly (4) is provided at the lower end of the inside of the filter box (1).
2. The reverse osmosis device for treating wastewater with extremely high total nitrogen according to claim 1, characterized in that, The internal dimensions of the mounting docking groove (302) are adapted to the external dimensions of the mounting docking block (303), and the mounting docking block (303) is embeddedly connected to the mounting block (301) through the mounting docking groove (302).
3. The reverse osmosis device for treating wastewater with extremely high total nitrogen according to claim 1, characterized in that, The number of receiving blocks (304) is two, and the two receiving blocks (304) are symmetrically arranged on both sides of the upper end of the filter cylinder (305) with the central axis of the front of the filter cylinder (305).
4. The reverse osmosis device for treating wastewater with extremely high total nitrogen according to claim 1, characterized in that, The scraper brush (309) is embedded in the filter cylinder (305), and the outer side of the scraper brush (309) is tightly attached to the inner wall of the filter cylinder (305).
5. A reverse osmosis device for treating wastewater with extremely high total nitrogen according to claim 1, characterized in that, The installation assembly (4) includes a limiting cylinder (401), a limiting rod (402), and a return spring (403). The limiting cylinder (401) is connected to the limiting rod (402) inside, and the limiting rod (402) is provided with a return spring (403) inside the limiting cylinder (401) outside the limiting cylinder (402).
6. A reverse osmosis device for treating wastewater with extremely high total nitrogen according to claim 5, characterized in that, The installation assembly (4) further includes an activated carbon adsorption layer (404), a limiting through hole (405), and a reverse osmosis membrane (406). The lower end of the filter box (1) is provided with an activated carbon adsorption layer (404), and a limiting through hole (405) is opened on the inner and outer sides of the activated carbon adsorption layer (404). A reverse osmosis membrane (406) is distributed at the lower end of the activated carbon adsorption layer (404).
7. A reverse osmosis device for treating wastewater with extremely high total nitrogen according to claim 6, characterized in that, The limiting rod (402) is embedded in the limiting cylinder (401), and the limiting rod (402) is elastically connected to the limiting cylinder (401) through a return spring (403).
8. A reverse osmosis device for treating wastewater with extremely high total nitrogen according to claim 6, characterized in that, The external dimensions of the limiting rod (402) are adapted to the internal dimensions of the limiting through hole (405), and the limiting rod (402) is connected to the activated carbon adsorption layer (404) through the limiting through hole (405).