Pretreatment equipment adopting double-membrane method

Abstract

The utility model discloses pretreatment equipment adopting a double-membrane method, which relates to the technical field of sewage filtration and comprises a bottom plate, water supply pipes are symmetrically arranged in the bottom plate, the tops of the water supply pipes are connected with a filter component, the top of the filter component is connected with a water collecting pipe, the water collecting pipe is connected with a drainage head, and a filter is embedded in the bottom plate. A communicating pipe is mounted on the filter, filter plates are symmetrically arranged in the filter, and a connector is mounted on the filter. Through the arrangement of the filter, when the pretreatment equipment adopting the double-membrane method is used for filtering a water source, the communicating pipe is communicated with an external water source conveying pipeline, after the external pretreated water source is conveyed into the filter through the conveying pipeline, the water source flows through the filter plate, and the filter plate can filter impurities carried by the water source; large impurities are prevented from entering the filtering assembly to influence the filtering effect and the service life in the filtering assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage filtration, in particular to a pretreatment device for a dual-membrane method. Background Technique

[0002] The dual-membrane water treatment technology is a wastewater treatment process that mainly conducts in-depth treatment of water through the combination of an ultrafiltration membrane system and a reverse osmosis membrane system. It is widely used in industrial wastewater treatment, seawater desalination, and water resource recycling and reuse. The pretreatment device for the dual-membrane method is a very crucial part of this process. Its main function is to provide a high-quality water inlet environment for the subsequent reverse osmosis system to ensure the stable operation and efficient separation of the reverse osmosis system.

[0003] However, before treating wastewater by the dual-membrane method, the filtration effect on large impurities in the wastewater is not ideal. Since these large impurities are difficult to be effectively captured and removed and enter the membrane filtration module, they will seriously affect the filtration efficiency and stability of the membrane, reduce the filtration rate of the membrane, and even cause mechanical damage to the membrane, ultimately leading to a significant reduction in the service life of the membrane filtration module.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a pretreatment device for the dual-membrane method is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pretreatment device for the dual-membrane method to solve the problem of inconvenient filtration and screening of large impurity objects mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A pretreatment device for the dual-membrane method, including a bottom plate. A water supply pipe is symmetrically arranged inside the bottom plate. A filtration module is connected to the top of the water supply pipe. A water collection pipe is connected to the top of the filtration module. The water collection pipe is connected to a drain head. A filter is inlaid inside the bottom plate. A connecting pipe is installed on the filter. Filter plates are symmetrically arranged inside the filter. A connecting head is installed on the filter and is communicated with the water supply pipe. A top plate is arranged on the top of the filter, and the top plate is connected to a cleaning component.

[0007] Furthermore, support blocks are fixedly installed at the bottom of the bottom plate.

[0008] Furthermore, a support frame is fixedly installed on the top of the bottom plate, and a controller is fixedly installed on the support frame.

[0009] Furthermore, threaded holes are provided on the filter, and positioning holes corresponding to the threaded holes are provided on the top plate.

[0010] Further, a positioning bolt is inserted into the positioning hole, and the positioning bolt is threadedly connected to the threaded hole.

[0011] Further, the cleaning assembly includes a concave frame and a scraper. The concave frame is fixedly installed on the top plate, and the scraper is fixedly installed on the concave frame.

[0012] Further, the scraper is rectangular, and one side contacts the outer wall of the filter plate.

[0013] Further, the size of the top plate is equal to the size of the filter.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Through the setting of the filter, when the pretreatment equipment using the double-membrane method filters the water source, the communication pipe is connected to the pipeline for conveying the water source outside. After the pretreated water source outside is transmitted to the inside of the filter through the conveying pipeline, the flowing water source will flow through the filter plate, and the filter plate will filter the impurities carried by the water source. The large impurities carried by the water source can be filtered through the filter plate, thereby avoiding large impurities from entering the inside of the filtering assembly and affecting the filtering effect and service life inside the filtering assembly. By filtering the large impurities, the replacement efficiency of the filter membrane inside the filtering assembly can be effectively reduced.

[0016] 2. Through the setting of the scraper, when the top plate is disassembled, moving the top plate will pull the concave frame to move, and the movement of the concave frame will drive the scraper to move. When the scraper moves, it will scrape and clean the impurities adsorbed on the filter plate, thereby achieving the purpose of improving the cleaning efficiency of the filter plate and avoiding excessive adsorption on the filter plate and being difficult to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a three-dimensional structural schematic diagram of the filter;

[0019] Figure 3 is a three-dimensional structural schematic diagram of the top plate;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the filter.

[0021] In the figure: 1, bottom plate; 2, support block; 3, filtering assembly; 4, water collecting pipe; 5, drain head; 6, support frame; 7, controller; 8, water supply pipe; 10, filter; 11, communication pipe; 12, filter plate; 13, connecting head; 14, threaded hole; 15, top plate; 16, positioning hole; 17, positioning bolt; 18, concave frame; 19, scraper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1

[0024] As Figures 1 - 4 shown, a pretreatment device using the dual-membrane method includes a bottom plate 1. Inside the bottom plate 1, water supply pipes 8 are symmetrically arranged. At the top of the water supply pipes 8, a filtering component 3 is connected. At the top of the filtering component 3, a water collecting pipe 4 is connected. The water collecting pipe 4 is connected to a drainage head 5. A filter 10 is embedded inside the bottom plate 1. A communicating pipe 11 is installed on the filter 10. Inside the filter 10, filter plates 12 are symmetrically arranged. A connecting head 13 is installed on the filter 10 and is communicated with the water supply pipe 8. At the top of the filter 10, a top plate 15 is provided, and the top plate 15 is connected to a cleaning component. When using the pretreatment device of the dual-membrane method to filter and treat the water source, the communicating pipe 11 is communicated with the pipeline for conveying the water source outside. After the water source pretreated outside is conveyed to the inside of the filter 10 through the conveying pipeline, the flowing water source will flow through the filter plates 12, and the filter plates 12 will filter the impurities carried by the water source. After the water source filtering large impurities flows into the inside of the connecting head 13, it will flow into the inside of the water supply pipe 8 through the connecting head 13. Through the water supply pipe 8, the water source will flow into the inside of the filtering component 3. The filtering component 3 is composed of two membrane separation systems of ultrafiltration and reverse osmosis. The ultrafiltration membrane is used to remove suspended solids, colloids and some organic matters in the water, and then the reverse osmosis membrane almost completely removes the dissolved salts and other harmful components in the water to achieve the treatment purpose of high water quality standards. The filter plates 12 can filter the large impurities carried in the water source, thereby avoiding the large impurities from entering the inside of the filtering component 3 and affecting the filtering effect and service life inside the filtering component 3. By filtering the large impurities, the replacement efficiency of the filter membrane inside the filtering component 3 can be effectively reduced.

[0025] Furthermore, support blocks 2 are fixedly installed at the bottom of the bottom plate 1 to support the position of the bottom plate 1 through the support blocks 2.

[0026] Furthermore, a support frame 6 is fixedly installed on the top of the bottom plate 1, and a controller 7 is fixedly installed on the support frame 6. The bottom plate 1 provides an installation space for the controller 7 through the support frame 6.

[0027] Further, the filter 10 is provided with threaded holes 14, and the top plate 15 is provided with positioning holes 16 corresponding to the threaded holes 14. After the top plate 15 is placed above the filter 10, the top of the filter 10 is sealed.

[0028] Further, a positioning bolt 17 is inserted into the positioning hole 16, and the positioning bolt 17 is threadedly connected to the threaded hole 14. After the positioning bolt 17 passes through the positioning hole 16 and is threadedly connected to the threaded hole 14, the top plate 15 will be limited and installed.

[0029] Further, the cleaning assembly includes a concave frame 18 and a scraper 19. The concave frame 18 is fixedly installed on the top plate 15, and the scraper 19 is fixedly installed on the concave frame 18. The scraper 19 is rectangular, and one side is in contact with the outer wall of the filter plate 12. When the top plate 15 is disassembled, moving the top plate 15 will pull the concave frame 18 to move. The movement of the concave frame 18 will drive the scraper 19 to move. When the scraper 19 moves, it will scrape and clean the impurities adsorbed on the filter plate 12, thereby achieving the purpose of improving the cleaning efficiency of the filter plate 12 and avoiding excessive adsorption on the filter plate 12, which is not easy to clean.

[0030] Further, the size of the top plate 15 is equal to the size of the filter 10. When the top plate 15 is installed above the filter 10, the top of the filter 10 can be sealed.

[0031] Working principle: When using the pretreatment equipment of the double-membrane method, first, when the pretreatment equipment of the double-membrane method is used to filter and treat the water source, the connecting pipe 11 is connected to the pipeline for conveying the water source outside. After the pretreated water source outside is transmitted to the inside of the filter 10 through the conveying pipeline, the flowing water source will flow through the filter plate 12. The filter plate 12 will filter the impurities carried by the water source. The water source that filters large impurities will flow into the connector 13 and then flow into the water supply pipe 8 through the connector 13. Through the water supply pipe 8, the water source will flow into the filtering component 3. The filtering component 3 is composed of two membrane separation systems of ultrafiltration and reverse osmosis. The ultrafiltration membrane is used to remove suspended solids, colloids and some organic matters in the water, and then the reverse osmosis membrane almost completely removes the dissolved salts and other harmful components in the water to achieve the treatment purpose of high water quality standards. The filter plate 12 can filter the large impurities carried in the water source, thereby avoiding large impurities from entering the inside of the filtering component 3 and affecting the filtering effect and service life of the inside of the filtering component 3. By filtering the large impurities, the replacement efficiency of the filter membrane inside the filtering component 3 can be effectively reduced.

[0032] Finally, when disassembling the top plate 15, moving the top plate 15 will pull the concave frame 18 to move, and the movement of the concave frame 18 will drive the scraper 19 to move. When the scraper 19 moves, it will scrape and clean the impurities adsorbed on the filter plate 12, thereby achieving the purpose of improving the cleaning efficiency of the filter plate 12 and avoiding excessive adsorption on the filter plate 12, which is not easy to clean.

[0033] This is the working principle of the pretreatment equipment of the double-film method.

[0034] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention so as to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A double membrane pretreatment device, comprising a bottom plate (1), characterized in that: A water supply pipe (8) is symmetrically arranged inside the bottom plate (1), the top of the water supply pipe (8) is connected to a filter assembly (3), the top of the filter assembly (3) is connected to a water collecting pipe (4), the water collecting pipe (4) is connected to a drainage head (5), a filter (10) is embedded inside the bottom plate (1), a connecting pipe (11) is installed on the filter (10), a filter plate (12) is symmetrically arranged inside the filter (10), a connector (13) is installed on the filter (10), and the connector (13) is connected to the water supply pipe (8), a top plate (15) is arranged on the top of the filter (10), and the top plate (15) is connected to a cleaning assembly.

2. A double membrane pretreatment device according to claim 1, characterized in that: A support block (2) is fixedly mounted on the bottom of the base plate (1).

3. A double membrane pretreatment device according to claim 2, characterized in that: A support frame (6) is fixedly mounted on the top of the base plate (1), and a controller (7) is fixedly mounted on the support frame (6).

4. A double membrane pretreatment device according to claim 1, characterized in that: The filter (10) is provided with a threaded hole (14), and the top plate (15) is provided with a positioning hole (16) corresponding to the threaded hole (14).

5. A double membrane pretreatment device according to claim 4, characterized in that: A positioning bolt (17) is inserted into the positioning hole (16), and the positioning bolt (17) is threadedly connected to the threaded hole (14).

6. A double membrane pretreatment device according to claim 1, characterized in that: The cleaning assembly comprises a concave frame (18) and a scraper (19); the concave frame (18) is fixedly mounted on the top plate (15); and the scraper (19) is fixedly mounted on the concave frame (18).

7. A double membrane pretreatment device according to claim 6, characterized in that: The scraper (19) is rectangular, and one side thereof is in contact with the outer wall of the filter plate (12).

8. A double membrane pretreatment device according to claim 1, characterized in that: The size of the top plate (15) is equal to that of the filter (10).

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