Electrically-driven membrane separation device with filtering structure

Abstract

The utility model relates to the technical field of electrophoretic coating, in particular to an electrically-driven membrane separation device with a filtering structure, which comprises a bottom plate, a shell component, an infusion pump and an electrically-driven membrane separation device main body are sequentially mounted at the top of the bottom plate from left to right, and a first connecting pipe is mounted at the liquid inlet end of the infusion pump; a second connecting pipe is installed at the liquid outlet end of the infusion pump, a filtering assembly is installed on the inner wall of the shell assembly, the shell assembly comprises a mounting ring, supporting legs are installed at the bottom of the mounting ring, a shell is installed on the inner wall of the mounting ring, and the filtering assembly comprises a first arc-shaped plate. According to the improved electrically-driven membrane separation device, the filter assembly is adopted, so that a surfactant in liquid can be adsorbed, the surfactant is prevented from corroding a membrane, and the service life of the device is prolonged; and the shell assembly is adopted, so that the filtering assembly can be quickly pulled out of the shell, and the working efficiency of maintaining the filtering assembly is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrophoretic coating, concretely to an electrically driven membrane separation device with a filtering structure. BACKGROUND

[0002] In the electrophoretic coating industry, degreasing agents are commonly used to remove oil from the surface of workpieces. After oil removal, the workpieces need to be rinsed with pure water. After a long period of operation, the conductivity of the pure water in the water washing tank is higher than the control standard, and the index requirement cannot be met. When the workpieces are immersed in the water in the previous process, some impurities and liquid in the degreasing tank are brought into the water washing tank, causing the conductivity to rise. In this case, an electrically driven membrane separation device is used.

[0003] The inventor found the following problems in the prior art during the implementation of the utility model: 1. During electrophoretic coating, the workpiece brings the liquid in the degreasing tank into the subsequent water washing tank, most of which is degreasing agent. The surfactant contained in the degreasing agent will not be selectively migrated by the cation and anion exchange membrane under the action of the electric field, but will adhere to the surface of the membrane. The surfactant will erode the membrane, reducing the service life of the cation and anion exchange membrane and affecting the electrically driven membrane separation device. 2. The existing ordinary electrically driven membrane separation device sometimes has a filter screen at the front end. The filter screen is generally installed with the device by a plurality of screws. When the filter screen needs to be cleaned and maintained, it is not convenient to remove the filter screen, affecting the maintenance efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide an electrically driven membrane separation device with a filtering structure to solve the problems raised in the background art. To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an electrically driven membrane separation device with a filtering structure, comprising a bottom plate, a shell assembly, a liquid pumping pump and an electrically driven membrane separation device main body are installed on the top of the bottom plate from left to right, a first connecting pipe is installed at the liquid inlet end of the liquid pumping pump, a second connecting pipe is installed at the liquid outlet end of the liquid pumping pump, and a filtering assembly is installed on the inner wall of the shell assembly.

[0005] The shell assembly comprises a mounting ring, a supporting leg is installed at the bottom of the mounting ring, and an outer shell is installed on the inner wall of the mounting ring.

[0006] The filtering assembly comprises a first arc-shaped plate, a second arc-shaped plate is installed on the inner wall of the first arc-shaped plate, a mounting pipe is installed on the inner wall of the second arc-shaped plate, a fixing ring is installed on the inner wall of the mounting pipe, and a filtering ring is installed at the bottom of the fixing ring.

[0007] More preferably, there are four legs in total, and the four legs are arranged in a ring with the vertical center line of the mounting ring as the origin. The bottom of the legs is mounted on the top of the base plate. One end of the first connecting pipe is connected to the liquid inlet of the main body of the electrically driven membrane separation device, and one end of the second connecting pipe is connected to the liquid outlet of the outer shell.

[0008] More preferably, the outer wall of the outer shell has three evenly spaced mounting holes at its front end, and the inner wall of the outer shell has an arc-shaped mounting groove whose internal dimensions and structure are consistent with the outer wall dimensions and structure of the mounting tube.

[0009] More preferably, both the outer wall of the outer shell and the outer wall of the first arc-shaped plate are provided with screw holes, and the first arc-shaped plate is connected to the outer shell by hand-tightening screws.

[0010] More preferably, the second arc-shaped plate is provided with sealing strips on both the top and one side.

[0011] More preferably, the filter assembly has three parts, and the filter assemblies located at the upper and lower parts of the housing have activated carbon layers inside, while the filter assemblies located in the middle of the housing have quartz sand layers inside.

[0012] More preferably, both the fixing ring and the filter ring have screw holes at their bottoms, and the fixing ring and the filter ring are connected by hand-tightening screws, and the fixing ring and the filter ring are symmetrically distributed about the horizontal center line of the mounting tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this invention, a filter assembly is provided, consisting of three layers. When liquid enters the housing, the quartz sand layer and the two activated carbon layers can perform triple filtration of the liquid. The quartz sand layer and the two activated carbon layers can remove impurities from the liquid. At the same time, the activated carbon layer has a loose and porous characteristic, and the pores of the activated carbon layer will adsorb surfactants, preventing surfactants from corroding the membrane and thus improving the service life of the device.

[0015] In this invention, by using the housing assembly and the filter assembly, when maintenance of the filter assembly is required, the hand screws that mount the housing to the first arc plate are removed, and then the filter assembly can be quickly pulled out from the housing using the handle on the first arc plate. This improves the convenience of maintaining the filter assembly and increases the efficiency of maintenance work. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the housing assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the filter assembly structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the full cross-sectional structure of the filter assembly of this utility model;

[0020] Figure 5 In this utility model Figure 4 A magnified structural diagram at point A in the diagram.

[0021] In the figure: 1. Base plate; 2. Shell assembly; 201. Mounting ring; 202. Support leg; 203. Outer shell; 3. Liquid pump; 4. Main body of the electrically driven membrane separation device; 5. First connecting pipe; 6. Second connecting pipe; 7. Filter assembly; 701. First arc plate; 702. Second arc plate; 703. Mounting pipe; 704. Fixing ring; 705. Filter ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 5 The present invention provides a technical solution: an electrically driven membrane separation device with a filtration structure, comprising a base plate 1, a housing assembly 2, a liquid pump 3 and an electrically driven membrane separation device body 4, which are installed sequentially from left to right on the top of the base plate 1. A first connecting pipe 5 is installed at the inlet end of the liquid pump 3, a second connecting pipe 6 is installed at the outlet end of the liquid pump 3, and a filter assembly 7 is installed on the inner wall of the housing assembly 2.

[0024] The housing assembly 2 includes a mounting ring 201, a support leg 202 is mounted on the bottom of the mounting ring 201, and a housing 203 is mounted on the inner wall of the mounting ring 201.

[0025] The filter assembly 7 includes a first arc-shaped plate 701, a second arc-shaped plate 702 installed on the inner wall of the first arc-shaped plate 701, an installation tube 703 installed on the inner wall of the second arc-shaped plate 702, a fixing ring 704 installed on the inner wall of the installation tube 703, and a filter ring 705 installed at the bottom of the fixing ring 704.

[0026] In this embodiment, as Figure 2As shown, there are four support legs 202, which are arranged in a ring around the vertical center line of the mounting ring 201. The bottom of the support legs 202 is mounted on the top of the base plate 1. One end of the first connecting pipe 5 is connected to the liquid inlet of the main body 4 of the electric driven membrane separator, and one end of the second connecting pipe 6 is connected to the liquid outlet of the outer shell 203. The four support legs 202 can stably support the mounting ring 201, which can improve the stability of the equipment during use. When the liquid pump 3 is started, it can draw the liquid in the outer shell 203 and send the liquid into the main body 4 of the electric driven membrane separator.

[0027] In this embodiment, as Figure 2 and Figure 3 As shown, the outer wall of the outer shell 203 has three evenly spaced mounting holes at the front end, and the inner wall of the outer shell 203 has an arc-shaped mounting groove whose internal dimensions and structure are consistent with the outer wall dimensions and structure of the mounting tube 703. When the filter assembly 7 is installed with the outer shell 203, the mounting tube 703 can be stably inserted into the arc-shaped mounting groove of the outer shell 203, which can improve the stability of the filter assembly 7 when it is installed with the outer shell 203.

[0028] In this embodiment, as Figure 2 and Figure 3 As shown, both the outer wall of the outer casing 203 and the outer wall of the first arc-shaped plate 701 are provided with screw holes, and the first arc-shaped plate 701 is connected to the outer casing 203 by a hand screw. The hand screw facilitates disassembly and installation. By using the hand screw through the screw holes on the outer casing 203 and the first arc-shaped plate 701, the outer casing 203 can be installed on the first arc-shaped plate 701. By removing the hand screw, the filter assembly 7 can be pulled out from the outer casing 203 through the handle on one side of the first arc-shaped plate 701, which facilitates subsequent maintenance of the filter assembly 7.

[0029] In this embodiment, as Figure 3 , Figure 4 and Figure 5 As shown, the top and one side of the second arc plate 702 are provided with sealing strips; when the filter assembly 7 is installed with the housing 203, the sealing strip on the second arc plate 702 contacts the housing 203, which can play a sealing role, preventing the liquid inside the housing 203 from leaking out through the gap between the second arc plate 702 and the housing 203, thus improving the safety of the device during use.

[0030] In this embodiment, as Figure 1 and Figure 2As shown, there are three filter components 7 in total. The filter components 7 located at the top and bottom of the housing 203 have activated carbon layers inside, and the filter components 7 located in the middle of the housing 203 have quartz sand layers inside. The liquid can be filtered in three stages through two activated carbon layers and one quartz sand layer, which improves the filtration effect of the liquid. Activated carbon has loose and porous characteristics, and its pores will adsorb surfactants, preventing surfactants from corroding the membrane.

[0031] In this embodiment, as Figure 3 , Figure 4 and Figure 5 As shown, both the fixing ring 704 and the filter ring 705 have screw holes at their bottoms, and the fixing ring 704 and the filter ring 705 are connected by hand-tightening screws. The fixing ring 704 and the filter ring 705 are symmetrically distributed about the horizontal center line of the mounting tube 703. The hand-tightening screws facilitate disassembly and installation. By removing the hand-tightening screws, the filter ring 705 can be disassembled, which is convenient for subsequent maintenance or replacement of the filter ring 705. The activated carbon layer or quartz sand layer is located between the two filter rings 705 of the corresponding filter assembly 7, which can prevent the activated carbon layer or quartz sand layer from splashing and adhering to the inner wall of the outer shell 203.

[0032] The method of use and advantages of this utility model: The electrically driven membrane separation device with a filtration structure operates as follows:

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, first, connect the inlet pipe to the water inlet end of the outer casing 203, then inject water into the outer casing 203. The water then falls into the outer casing 203 and is filtered through the activated carbon layer and quartz sand layer of the three-layer filter assembly 7 before falling to the bottom of the outer casing 203. At the same time, start the liquid pump 3 and extract the liquid from the outer casing 203 through the second connecting pipe 6. The liquid is then sent into the main body 4 of the electrically driven membrane separation device through the liquid pump 3 and the first connecting pipe 5. When maintenance of the filter assembly 7 is required, remove the hand screws that install the outer casing 203 and the first arc plate 701. Then, use the handle on the first arc plate 701 to pull the filter assembly 7 out of the outer casing 203. Remove the hand screws that install the fixing ring 704 and the filter ring 705 on the upper part of the filter assembly 7. Then, remove the filter ring 705 to replace the activated carbon layer or quartz sand layer in the filter assembly 7. Then, install the filter ring 705 and the fixing ring 704. Finally, install the filter assembly 7 back into the outer casing 203 after maintenance.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electrically driven membrane separation device with a filtration structure, comprising a base plate (1), characterized in that: The top of the base plate (1) is sequentially equipped with a housing assembly (2), a liquid pump (3) and an electrically driven membrane separation device body (4) from left to right. The liquid pump (3) has a first connecting pipe (5) installed at its inlet end and a second connecting pipe (6) installed at its outlet end. The inner wall of the housing assembly (2) is equipped with a filter assembly (7). The housing assembly (2) includes a mounting ring (201), a support leg (202) is mounted on the bottom of the mounting ring (201), and a housing (203) is mounted on the inner wall of the mounting ring (201); The filter assembly (7) includes a first arc-shaped plate (701), a second arc-shaped plate (702) is installed on the inner wall of the first arc-shaped plate (701), an installation tube (703) is installed on the inner wall of the second arc-shaped plate (702), a fixing ring (704) is installed on the inner wall of the installation tube (703), and a filter ring (705) is installed at the bottom of the fixing ring (704).

2. The electrically driven membrane separation device with a filtration structure according to claim 1, characterized in that: There are four legs (202) in total, and the four legs (202) are arranged in a ring with the vertical center line of the mounting ring (201) as the origin. The bottom of the legs (202) is installed on the top of the base plate (1). One end of the first connecting pipe (5) is connected to the liquid inlet of the main body (4) of the electric driven membrane separation device, and one end of the second connecting pipe (6) is connected to the liquid outlet of the outer shell (203).

3. The electrically driven membrane separation device with a filtration structure according to claim 1, characterized in that: The outer wall of the outer shell (203) has three evenly spaced mounting holes at the front end, and the inner wall of the outer shell (203) has an arc-shaped mounting groove whose internal dimensions and structure are consistent with the outer wall dimensions and structure of the mounting tube (703).

4. The electrically driven membrane separation device with a filtration structure according to claim 1, characterized in that: Both the outer wall of the outer shell (203) and the outer wall of the first arc plate (701) are provided with screw holes, and the first arc plate (701) is connected to the outer shell (203) by hand-tightening screws.

5. The electrically driven membrane separation device with a filtration structure according to claim 1, characterized in that: The second arc-shaped plate (702) is provided with sealing strips on its top and one side.

6. The electrically driven membrane separation device with a filtration structure according to claim 1, characterized in that: There are three filter components (7) in total. The filter components (7) located at the upper and lower parts of the outer shell (203) are provided with activated carbon layers, and the filter components (7) located in the middle of the outer shell (203) are provided with quartz sand layers.

7. The electrically driven membrane separation device with a filtration structure according to claim 1, characterized in that: Both the fixing ring (704) and the filter ring (705) have screw holes at their bottoms, and the fixing ring (704) and the filter ring (705) are connected by hand-tightening screws. The fixing ring (704) and the filter ring (705) are symmetrically distributed about the horizontal center line of the mounting tube (703).

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