Immersed ultrafiltration device

Abstract

The utility model discloses an immersed ultrafiltration device, which relates to the technical field of water treatment and comprises a filter box, a primary filter screen is arranged on the periphery of the outer surface of the filter box, a mounting frame is fixedly connected inside the filter box, a lower mounting plate is mounted on the inner bottom surface of the filter box, and an ultrafiltration membrane element is arranged between the lower mounting plate and an upper mounting plate. A sealing gasket is arranged at the joint of the filter box and the upper mounting plate, a lower U-shaped pipe is mounted on the surface of the sealing gasket, a vertical pipe is connected to the upper surface of the middle of the transverse pipe, an upper U-shaped pipe is connected to the other end of the vertical pipe, a second electromagnetic valve is mounted on the other side of the lower portion of the upper U-shaped pipe, and a second water pump is mounted on the other side of the upper portion of the upper U-shaped pipe; through the arrangement of the primary filter screen, the lower U-shaped pipe, the air hole, the upper U-shaped pipe, the first electromagnetic valve, the first water pump, the second electromagnetic valve and the second water pump, the effect of conveniently cleaning the ultrafiltration membrane element is achieved, and the purpose of improving the use convenience of the ultrafiltration device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to an immersion type ultrafiltration device. Background Art

[0002] At present, ultrafiltration membrane filtration technology is widely used in the field of water treatment, and the submerged ultrafiltration membrane technology has attracted attention due to its good adaptability to existing process modifications. The submerged ultrafiltration membrane components are mainly in two forms: curtain type and columnar type. Its application form is mainly to place the membrane component directly in the membrane pool and form filtration through the suction action of the pump. In order to ensure the service life of the membrane and avoid pollution of the ultrafiltration membrane, it is often necessary to treat the incoming water through pretreatment measures such as security filters before entering the membrane pool.

[0003] When using an existing water treatment ultrafiltration device, the ultrafiltration device is completely immersed in a water pool, and the water in the ultrafiltration device is pumped out by a water pump, so that a pressure difference is formed inside and outside the ultrafiltration device, and the water in the water pool enters the ultrafiltration device, and impurities are filtered out. The water in the ultrafiltration device is then pumped into another water pool by the water pump to complete the water ultrafiltration treatment. However, long-term use of the filter material will cause impurities to clog the filter material, and the filter material needs to be frequently treated. This process is relatively troublesome, and therefore, there is a disadvantage that impurities can easily clog the filter material. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an immersion ultrafiltration device, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: an immersed ultrafiltration device, comprising a filter box, wherein primary filter screens are arranged around the outer surface of the filter box, a mounting frame is fixedly connected to the inside of the filter box, a lower mounting plate is installed on the inner bottom surface of the filter box, an upper mounting plate is installed on the inner top surface of the filter box, an ultrafiltration membrane element is arranged between the lower mounting plate and the upper mounting plate, a sealing gasket is provided at the connection between the filter box and the upper mounting plate, a lower U-shaped tube is installed on the surface of the sealing gasket, a horizontal tube is connected to the inner side surface of the upper part of the lower U-shaped tube, a vertical tube is connected to the upper surface of the middle part of the horizontal tube, an upper U-shaped tube is connected to the other end of the vertical tube, a first solenoid valve is installed on one side below the upper U-shaped tube, a first water pump is installed on one side above the upper U-shaped tube, a second solenoid valve is installed on the other side below the upper U-shaped tube, and a second water pump is installed on the other side above the upper U-shaped tube.

[0008] Optionally, the number of the lower mounting plate, the upper mounting plate and the ultrafiltration membrane elements are all four and are distributed in a rectangular array, and the mounting frame separates the four ultrafiltration membrane elements.

[0009] Optionally, two ends of the lower U-shaped tube are respectively arranged in two adjacent ultrafiltration membrane elements, and the number of the lower U-shaped tubes is two and they are symmetrically distributed.

[0010] Optionally, the surface of the lower U-shaped tube disposed in the inner part of the ultrafiltration membrane element is provided with pores, and the number of the pores is several and distributed in a rectangular array.

[0011] Optionally, the output end of the first water pump away from the upper U-shaped tube is arranged in the purified water pool, and the input end of the second water pump away from the upper U-shaped tube is arranged in the purified water pool.

[0012] Optionally, the first solenoid valve and the first water pump are symmetrically distributed with the second solenoid valve and the second water pump.

[0013] (III) Beneficial effects

[0014] The utility model provides an immersion type ultrafiltration device, which has the following beneficial effects:

[0015] 1. The submerged ultrafiltration device, through the arrangement of the primary filter screen, the lower U-shaped tube, the pores, the upper U-shaped tube, the first solenoid valve, the first water pump, the second solenoid valve and the second water pump, enables the submerged ultrafiltration device to have the effect of conveniently backwashing the impurities blocked on the surface of the ultrafiltration membrane element. When in use, the device is completely immersed in the pool of water to be purified. At this time, the water in the pool enters the filter box through the primary filter screen. Under the action of the primary filter screen, the larger impurities in the water are filtered out, which plays a role of preliminary filtration. Then, the solenoid valve plate of the first solenoid valve is controlled to open through the controller of the device, and then the first water pump is turned on. The first water pump pumps the water inside the ultrafiltration membrane element to another purified water pool through the upper U-shaped tube, the vertical pipe and the lower U-shaped tube. Since the water in the ultrafiltration membrane element is pumped out, a pressure difference is formed between the inside and outside of the ultrafiltration membrane element, thereby causing the ultrafiltration membrane element to The water outside the device is filtered and enters the ultrafiltration membrane element, and the impurities are filtered out by the ultrafiltration membrane element. The filtered water enters the ultrafiltration membrane element, and the filtered water is pumped out by the first water pump at this time, completing the filtration of the water. After using it for a period of time, when it is necessary to clean the impurities on the outer surface of the ultrafiltration membrane element, the device is raised, and the solenoid valve sheet of the first solenoid valve is controlled to be closed by the controller of the device, and then the solenoid valve sheet of the second solenoid valve is opened, the first water pump is closed, and the second water pump is opened. The purified water in another water pool is pumped into the U-shaped tube under the road through the second water pump, and the clean water enters the ultrafiltration membrane element, and the clean water is discharged from the inside to the outside in the ultrafiltration membrane element, thereby flushing away the impurities blocking the surface of the ultrafiltration membrane element, completing the cleaning of the ultrafiltration membrane element, and the operation is simple and convenient, which plays a role in facilitating the cleaning of the ultrafiltration membrane element and achieves the purpose of improving the convenience of use of the ultrafiltration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the side cross-section of the utility model;

[0018] Figure 3 For this utility model Figure 2 The structural diagram at A in the middle;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the interior of the filter box of the utility model.

[0020] In the figure: 1, filter box; 2, primary filter; 3, mounting frame; 4, lower mounting plate; 5, upper mounting plate; 6, ultrafiltration membrane element; 7, sealing gasket; 8, lower U-shaped tube; 81, air hole; 9, horizontal tube; 10, vertical tube; 11, upper U-shaped tube; 12, first solenoid valve; 13, first water pump; 14, second solenoid valve; 15, second water pump. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Example 1

[0023] See also Figures 1 to 4The utility model provides a technical solution: an immersed ultrafiltration device, comprising a filter box 1, a primary filter screen 2 is arranged around the outer surface of the filter box 1, a mounting frame 3 is fixedly connected to the inside of the filter box 1, a lower mounting plate 4 is installed on the inner bottom surface of the filter box 1, an upper mounting plate 5 is installed on the inner top surface of the filter box 1, and an ultrafiltration membrane element 6 is arranged between the lower mounting plate 4 and the upper mounting plate 5. The number of the lower mounting plate 4, the upper mounting plate 5 and the ultrafiltration membrane element 6 is four, and they are distributed in a rectangular array. The mounting frame 3 separates the four ultrafiltration membrane elements 6. A sealing gasket 7 is provided at the connection between the filter box 1 and the upper mounting plate 5, and a lower U-shaped tube 8 is installed on the surface of the sealing gasket 7. The two ends of the lower U-shaped tube 8 are respectively arranged in two adjacent ultrafiltration membrane elements 6. The number of the lower U-shaped tubes 8 is two and they are symmetrically distributed. The surface of the lower U-shaped tube 8 arranged in the inner part of the ultrafiltration membrane element 6 is provided with air holes 81. The number of the air holes 81 is several and they are distributed in a rectangular array. The inner side surface of the upper part of the lower U-shaped tube 8 is connected to the horizontal tube 9. The upper surface of the middle part of the horizontal tube 9 is connected to the vertical tube 10. The other end of the vertical tube 10 is connected to the upper U-shaped tube 11. The first electric A magnetic valve 12, a first water pump 13 is installed on one side above the upper U-shaped tube 11, a second electromagnetic valve 14 is installed on the other side below the upper U-shaped tube 11, and a second water pump 15 is installed on the other side above the upper U-shaped tube 11. The output end of the first water pump 13 away from the upper U-shaped tube 11 is arranged in the purified water pool, and the input end of the second water pump 15 away from the upper U-shaped tube 11 is arranged in the purified water pool. The first electromagnetic valve 12, the first water pump 13 and the second electromagnetic valve 14 and the second water pump 15 are symmetrically distributed.

[0024] In order to achieve the purpose of improving the convenience of use of the ultrafiltration device, when using it, the device is completely immersed in the pool of water to be purified. At this time, the water in the pool enters the filter box 1 through the primary filter screen 2. Under the action of the primary filter screen 2, larger impurities in the water are filtered out, which plays a role of preliminary filtration. Then the solenoid valve plate of the first solenoid valve 12 is controlled to open by the controller of the device, and then the first water pump 13 is turned on. The first water pump 13 pumps the water inside the ultrafiltration membrane element 6 to another purified water pool through the upper U-shaped tube 11, the vertical tube 10 and the lower U-shaped tube 8. Since the water in the ultrafiltration membrane element 6 is pumped out, a pressure difference is formed between the ultrafiltration membrane element 6 and the outside of the ultrafiltration membrane element 6, so that the water outside the ultrafiltration membrane element 6 is filtered into the ultrafiltration membrane element 6, and the impurities are filtered out by the ultrafiltration membrane element 6. Water enters the ultrafiltration membrane element 6, and the filtered water is pumped out through the first water pump 13 at this time, completing the filtration of the water. After using it for a period of time, when it is necessary to clean the impurities on the outer surface of the ultrafiltration membrane element 6, the device is raised, and the solenoid valve plate of the first solenoid valve 12 is controlled to be closed through the controller of the device, and then the solenoid valve plate of the second solenoid valve 14 is opened, the first water pump 13 is closed, and the second water pump 15 is opened. The purified water in another water pool is pumped into the lower U-shaped tube 8 through the second water pump 15, and the clean water enters the ultrafiltration membrane element 6, and the clean water is discharged from the inside to the outside in the ultrafiltration membrane element 6, and then the impurities blocking the surface of the ultrafiltration membrane element 6 are washed away, completing the cleaning of the ultrafiltration membrane element 6. The operation is simple and convenient, which plays a role in facilitating the cleaning of the ultrafiltration membrane element 6 and achieves the purpose of improving the convenience of use of the ultrafiltration device.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An immersed ultrafiltration device, comprising a filter box (1), characterized in that: The outer surface of the filter box (1) is provided with a primary filter screen (2) around its periphery, the interior of the filter box (1) is fixedly connected with a mounting frame (3), the inner bottom surface of the filter box (1) is provided with a lower mounting plate (4), the inner top surface of the filter box (1) is provided with an upper mounting plate (5), an ultrafiltration membrane element (6) is provided between the lower mounting plate (4) and the upper mounting plate (5), a sealing gasket (7) is provided at the connection between the filter box (1) and the upper mounting plate (5), a lower U-shaped tube (8) is provided on the surface of the sealing gasket (7), and the lower U-shaped The inner side surface of the upper part of the tube (8) is connected to a horizontal tube (9), the upper surface of the middle part of the horizontal tube (9) is connected to a vertical tube (10), the other end of the vertical tube (10) is connected to an upper U-shaped tube (11), a first electromagnetic valve (12) is installed on one side below the upper U-shaped tube (11), a first water pump (13) is installed on one side above the upper U-shaped tube (11), a second electromagnetic valve (14) is installed on the other side below the upper U-shaped tube (11), and a second water pump (15) is installed on the other side above the upper U-shaped tube (11).

2. The submerged ultrafiltration device according to claim 1, characterized in that: The number of the lower mounting plate (4), the upper mounting plate (5) and the ultrafiltration membrane elements (6) is four each and they are distributed in a rectangular array, and the mounting frame (3) separates the four ultrafiltration membrane elements (6).

3. The submerged ultrafiltration device according to claim 1, characterized in that: Both ends of the lower U-shaped tube (8) are respectively arranged in two adjacent ultrafiltration membrane elements (6), and there are two lower U-shaped tubes (8) in number, which are symmetrically distributed.

4. The submerged ultrafiltration device according to claim 1, characterized in that: The lower U-shaped tube (8) is arranged on the inner part of the ultrafiltration membrane element (6) and has air holes (81) on its surface. The number of the air holes (81) is several and they are distributed in a rectangular array.

5. The submerged ultrafiltration device according to claim 1, characterized in that: The output end of the first water pump (13) away from the upper U-shaped tube (11) is arranged in the purified water pool, and the input end of the second water pump (15) away from the upper U-shaped tube (11) is arranged in the purified water pool.

6. The submerged ultrafiltration device according to claim 1, characterized in that: The first solenoid valve (12), the first water pump (13) and the second solenoid valve (14), the second water pump (15) are symmetrically distributed.

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