A self-cleaning intelligent membrane pool device

Abstract

The present invention relates to the field of water treatment technology, and in particular to a self-cleaning intelligent membrane pool device, including an upper head, a tank body and a lower head, wherein an eccentric manhole is provided on the upper head, a membrane assembly, a high-pressure cleaning device and a rotating support are provided in the tank body, a through air inlet is provided in the middle of the tank body, a water inlet and a water outlet are provided on both sides, a manhole and a sewage outlet are provided on the lower head, the water outlet is the backwash water inlet during backwashing, and membrane assembly heads are provided at the upper and lower ends of the membrane assembly. The present invention cleans from the tank pool, and does not need to be hoisted out for cleaning; the integrated anti-corrosion tank body has no corrosion interference; it can be operated manually and intelligently and automatically; the cleaning dosage is accurate, and the cleaning cost is low; the cleaning liquid can be reused after filtration, and the pollution is low; the combination is compact, which can save two-thirds of the land area of ​​the existing form; the membrane pool has high space utilization, small backwash water volume, and high recovery rate; the complete set of equipment is manufactured in the factory, and the modular assembly is directly assembled on site, and the construction period is short; it can achieve market scale industrialization.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, in particular to a self-cleaning intelligent membrane pool device. Background Art

[0002] Immersed ultrafiltration equipment is a new type of membrane filtration water treatment technology derived from the combination of a new type of immersed membrane element and continuous membrane filtration technology. Its working principle is similar to that of positive pressure ultrafiltration, except that the ultrafiltration membrane assembly is placed in the water to be treated and membrane filtration is achieved through negative pressure suction. The existing immersed ultrafiltration equipment has the following shortcomings: a separate basic membrane pool and backwash pool need to be built, the structure is complex, the process control is cumbersome, the cleaning effect is poor, the drug consumption is large, the floor space is large, the degree of automation is low, and the membrane assembly needs to be lifted out during cleaning, which can easily cause damage to the membrane assembly and shorten the service life of the membrane assembly. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to overcome the deficiencies in the prior art, a self-cleaning intelligent membrane pool device is provided.

[0004] The technical solution adopted by the present invention is: a self-cleaning intelligent membrane pool device, including an upper head, a tank body and a lower head, the upper head is provided with an eccentric manhole, the tank body is provided with a membrane assembly, a high-pressure cleaning device and a rotating base, the middle of the tank body is provided with a through air inlet, the two sides are provided with a water inlet and a water outlet, the lower head is provided with an inspection hole and a sewage outlet, the water outlet is a backwashing water inlet during backwashing, and the upper and lower ends of the membrane assembly are provided with membrane assembly heads. The self-cleaning intelligent membrane pool device is a fully automated complete set of equipment, the equipment is coated with anti-corrosion materials, the tank body is made of steel, stainless steel, fiberglass or plastic, the membrane pool can be designed in a square, round or polygonal shape, and the device is designed to operate in a pressure or suction mode.

[0005] The eccentric manhole is arranged on the upper head of the self-cleaning intelligent membrane pool device. The shape of its cross section is a centrosymmetrical structure and the center point is at 3 / 4 of the diameter of the tank body of the self-cleaning intelligent membrane pool device. The opening area of ​​the eccentric manhole is 1 / 8 - 1 / 4 of the cross-sectional area of ​​the upper head of the tank body. The shape of the cross section of the eccentric manhole can be circular, square or polygonal, and limiting the position of its center point is convenient for subsequent replacement and cleaning of membrane elements. Through the eccentric manhole, the operation of the membrane in the device can be observed at any time. When the operation of the membrane is observed to be abnormal, when the membrane needs to be replaced, it is only necessary to stop the machine, open the eccentric manhole cover, and rotate the internal rotating base to replace it.

[0006] The membrane assembly is composed of multiple membrane elements, which are arranged inside the tank of the self-cleaning intelligent membrane pool device. The membrane elements are evenly distributed, and the membrane assembly is a centrally symmetrical structure with a through hole for the air inlet in the middle. The membrane assembly adopts a melon-shaped structure or a multi-circular structure. The distribution of membrane elements ensures that the filtration areas of multiple membrane elements are the same, evenly distributed, and evenly discharge water. If the filtration areas are different, the water output after filtration will be different. Membrane elements with small filtration areas are prone to premature clogging, which indirectly increases the frequency and cost of maintenance and replacement; a curved structure is used to ensure the stable flow of water.

[0007] Sewage enters the ultrafiltration device through the pipe of the water inlet. The tiny pores in the membrane element retain the pollutants on the outer surface of the membrane. The water from the inner surface of the membrane is the filtered clean water, which is discharged through the water outlet. The retained dirt and impurities are discharged through the sewage pipe at the bottom of the device. When the membrane element is seriously blocked, the water flux decreases, and the online acid and alkali washing is not clean, the machine can be shut down to open the eccentric manhole cover, and the membrane element can be taken out for cleaning. If some of the taken out membrane elements are in good operating condition, they do not need to be cleaned or replaced, reducing maintenance costs.

[0008] The high-pressure cleaning device is arranged on the side of the membrane assembly of the self-cleaning intelligent membrane pool device, connected to the air inlet, and is provided with uniformly arranged high-pressure nozzles. The high-pressure cleaning device adopts an operating pressure of 3-5 kg, and the operating pressure is monitored by a pressure gauge on the upper head of the self-cleaning intelligent membrane pool device. The high-pressure cleaning device adopts a U-shaped structure or a cylindrical ring structure. The operating pressure of 3-5 kg ​​is adopted. If the pressure is too low, the flushing effect is not good, and if the pressure is too high, it is unsafe.

[0009] After the ultrafiltration system has been running for a period of time, the PLC automatic control system will automatically shut down and start the high-pressure cleaning system. High-pressure air will be introduced into the air inlet, and the high-pressure air will be released through the high-pressure nozzle on the side cleaning device of the membrane module to clean the pollutants and impurities on the membrane surface. This system significantly improves the effect of air washing. The impurities and dirt washed down are discharged through the sewage outlet at the bottom of the membrane pool device.

[0010] The rotating support is arranged at the lower part of the membrane assembly of the self-cleaning intelligent membrane pool device. The rotating support is provided with an opening of an air inlet and evenly arranged air holes, and the air holes correspond to the compressed air inlet on the membrane assembly head at the lower part of the membrane assembly. The rotating support is connected to the central air inlet, and the air holes arranged around the rotating support can be used for aeration to wash the dirt on the membrane assembly through the air holes on the bottom head of the membrane assembly. The combination of aeration and the centrifugal action generated by the rotating support can better flush and clean the pollutants and impurities on the membrane surface, so that the effect of air washing is significantly improved.

[0011] The rotating platform is connected to the central air inlet, and the rotating platform is equipped with air holes. Aeration can wash the dirt on the membrane assembly through the air holes on the bottom head of the membrane assembly. When the ultrafiltration system has been running for a period of time, the PLC automatic control system will automatically shut down and start the rotating platform and the air intake system. The combination of aeration and the centrifugal action generated by the rotating platform can better flush and clean the pollutants and impurities on the membrane surface, so that the air washing effect is significantly improved. The operation of the membrane inside the device can be observed at any time through the eccentric manhole. When the operation of the membrane is observed to be abnormal, when the membrane needs to be replaced, just shut down and open the eccentric manhole cover, and rotate the internal rotating platform to replace it.

[0012] The eccentric manhole is made of closed transparent material, and its cross section is circular, with an opening area of ​​1 / 8 of the cross section of the upper head of the tank body; the lower end of the eccentric manhole is connected to the upper head of the self-cleaning intelligent membrane tank device through an adapted missing block column, and the upper end is a spherical missing structure. The eccentric manhole with the smallest area is set to save materials and space, and the circular curvature makes it more convenient to take and place the subsequent membrane elements.

[0013] When the membrane assembly adopts a melon-shaped structure, the inner circle is provided with 4 first fan-shaped structures that are evenly distributed and have the same shape and structure, and the outer circle is correspondingly provided with 12 second fan-shaped structures that are evenly distributed and have the same shape and structure; the first fan-shaped structures and the second fan-shaped structures have the same area.

[0014] When the membrane assembly adopts a multi-circular structure, the inner circle is provided with 9 first circular structures that are evenly distributed and have the same shape and structure, and the outer circle is correspondingly provided with 12 second circular structures that are evenly distributed and have the same shape and structure; the first circular structures and the second circular structures have the same area.

[0015] When the high-pressure cleaning device adopts a U-shaped structure, the high-pressure nozzles are evenly arranged on both sides thereof, and 8-10 high-pressure nozzles are arranged on one side.

[0016] When the high-pressure cleaning device adopts a cylindrical ring structure, the high-pressure nozzles are evenly arranged on the side wall thereof horizontally and vertically; 8 to 10 high-pressure nozzles are arranged in a circle horizontally and 8 to 10 high-pressure nozzles are arranged in a row vertically.

[0017] The air holes are circular in structure, with an aperture range of 1-8 mm; there are 3-5 circles of air holes from the inside to the outside. Small-diameter circular holes are used, and multiple circles of air holes are set, which is convenient for cleaning with the air intake system.

[0018] The high-pressure cleaning device and the rotating support platform are connected to a PLC automatic control system through a controller to achieve efficient and convenient operation.

[0019] When the self-cleaning intelligent membrane pool device of the present invention is working, first, the water inlet end of the water production pump is connected to the water production pipe of the membrane assembly through a pipeline, and the water quality in the membrane pool is purified and separated by pressure water production or negative pressure water production, with the help of the high-efficiency filtering ability of the ultrafiltration membrane. An eccentric manhole is arranged on the upper part of the device to facilitate observation of the operation status. A rotating support is arranged below the membrane assembly in the device to rotate the membrane assembly to the bottom of the eccentric manhole for easy replacement. The high-pressure air generated by the fan is transported to the pores at the bottom of the membrane assembly connected to the rotating support through the air inlet. The pores form rapidly rising flushing bubbles that pass through the membrane assembly head, flush the surface of the membrane wire, and vibrate the membrane wire, pushing the blown sludge to the bottom of the tank body, and the bottom of the tank body is provided with a sewage outlet. The equipment is also provided with an automatic backwashing system, and positive and negative pressure gauges are arranged at the response position of the membrane assembly near the membrane assembly inlet and outlet pipes. The automatic backwashing function in the membrane pool is controlled by a PLC program.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. Clean in the tank without lifting it out for cleaning;

[0022] 2. Integrated anti-corrosion tank body, no corrosion interference;

[0023] 3. Can be operated manually or by intelligent automation;

[0024] 4. The cleaning dosage is accurate and the cleaning cost is low;

[0025] 5. The cleaning liquid can be reused after filtration, with low pollution;

[0026] 6. The combination is compact, which can save two-thirds of the land area of ​​the existing form;

[0027] 7. The membrane pool space utilization rate is high, the backwash water volume is small, and the recovery rate is high;

[0028] 8. It can be installed in modular form. The complete set of equipment is manufactured in the factory and directly assembled on site in modular form, which shortens the construction period.

[0029] 9. Market scale industrialization can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the eccentric manhole of the present invention;

[0032] Figure 3 It is a schematic diagram of the structure of the membrane module of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the rotary bearing platform of the present invention;

[0034] Figure 5 It is a structural schematic diagram of the high-pressure cleaning device of the present invention;

[0035] Figure 6 The present invention Figure 3 A top view of

[0036] Figure 7 The present invention Figure 3 Another top view of .

[0037] Numbers in the figure: 1-eccentric manhole, 2-air inlet, 3-water outlet (backwash water inlet), 4-membrane assembly head, 5-water inlet, 6-membrane assembly, 7-rotating support, 8-inspection hole, 9-drainage outlet, 10-compressed air inlet, 11-high-pressure cleaning device, 12-high-pressure nozzle, 61-membrane element, 71-air hole. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below. The embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0039] Example 1

[0040] Figure 1-Figure 6 A self-cleaning intelligent membrane pool device is shown, comprising an upper head, a tank body and a lower head. An eccentric manhole 1 is provided on the upper head. A membrane assembly 6, a high-pressure cleaning device 11 and a rotating base 7 are provided on the tank body. A through air inlet 2 is provided in the middle of the tank body, and a water inlet 5 and a water outlet 3 are provided on both sides. An inspection hole 8 and a sewage outlet 9 are provided on the lower head. The water outlet 3 is the backwash water inlet during backwashing. Membrane assembly heads 4 are provided at the upper and lower ends of the membrane assembly 6.

[0041] The eccentric manhole 1 is arranged on the upper head of the self-cleaning intelligent membrane pool device, and the shape of its cross section is a central symmetrical structure with the center point at 3 / 4 of the diameter of the tank body of the self-cleaning intelligent membrane pool device. The eccentric manhole 1 is made of a closed transparent material, and the shape of its cross section is circular, and the opening area is 1 / 8 of the cross-sectional area of ​​the upper head of the tank body;

[0042] The membrane assembly 6 is composed of a plurality of membrane elements 61, which are arranged inside the tank of the self-cleaning intelligent membrane pool device. The membrane elements 61 are evenly distributed. The membrane assembly 6 is of a centrally symmetrical structure, with a through hole for the air inlet 2 in the middle. The membrane assembly 6 adopts a melon-like structure, and the inner circle is provided with 4 evenly distributed first fan-shaped structures with the same shape and structure, and the outer circle is correspondingly provided with 12 evenly distributed second fan-shaped structures with the same shape and structure; the first fan-shaped structure and the second fan-shaped structure have the same area;

[0043] The high-pressure cleaning device 11 is arranged on the side of the membrane assembly 6 of the self-cleaning intelligent membrane pool device, connected to the air inlet 2, and is provided with uniformly arranged high-pressure nozzles 12. The high-pressure cleaning device 11 adopts an operating pressure of 3-5 kg, and the operating pressure is monitored by a pressure gauge on the upper head of the self-cleaning intelligent membrane pool device. The high-pressure cleaning device 11 adopts a U-shaped structure, and the high-pressure nozzles 12 are uniformly arranged on both sides thereof, and 8 high-pressure nozzles 12 are provided on one side;

[0044] The rotating support 7 is arranged at the lower part of the membrane assembly 6 of the self-cleaning intelligent membrane pool device. The rotating support 7 is provided with an opening of the air inlet 2 and evenly arranged air holes 71, and the air holes 71 correspond to the compressed air inlet 10 on the membrane assembly head 4 at the lower part of the membrane assembly 6.

[0045] The lower end of the eccentric manhole 1 is connected to the upper head of the self-cleaning intelligent membrane pool device through an adapted missing block column, and the upper end is a spherical missing structure; the air hole 71 adopts a circular structure with an aperture range of 3mm; the air hole 71 is provided with 4 circles from the inside to the outside. The high-pressure cleaning device 11 and the rotating support 7 are connected to the PLC automatic control system through a controller.

[0046] Example 2

[0047] Figure 1-5 and Figure 7 A self-cleaning intelligent membrane pool device is shown, comprising an upper head, a tank body and a lower head. An eccentric manhole 1 is provided on the upper head. A membrane assembly 6, a high-pressure cleaning device 11 and a rotating base 7 are provided on the tank body. A through air inlet 2 is provided in the middle of the tank body, and a water inlet 5 and a water outlet 3 are provided on both sides. An inspection hole 8 and a sewage outlet 9 are provided on the lower head. The water outlet 3 is the backwash water inlet during backwashing. Membrane assembly heads 4 are provided at the upper and lower ends of the membrane assembly 6.

[0048] The eccentric manhole 1 is arranged on the upper head of the self-cleaning intelligent membrane pool device, and the shape of its cross section is a central symmetrical structure with the center point at 3 / 4 of the diameter of the tank body of the self-cleaning intelligent membrane pool device. The eccentric manhole 1 is made of a closed transparent material, and the shape of its cross section is circular, and the opening area is 1 / 8 of the cross-sectional area of ​​the upper head of the tank body;

[0049] The membrane assembly 6 is composed of a plurality of membrane elements 61, which are arranged inside the tank of the self-cleaning intelligent membrane pool device. The membrane elements 61 are evenly distributed. The membrane assembly 6 is of a centrally symmetrical structure, with a through hole of the air inlet 2 in the middle. When the membrane assembly 6 adopts a multi-circular structure, the inner circle is provided with 9 evenly distributed first circular structures with the same shape and structure, and the outer circle is correspondingly provided with 12 evenly distributed second circular structures with the same shape and structure; the first circular structure and the second circular structure have the same area;

[0050] The high-pressure cleaning device 11 is arranged on the side of the membrane assembly 6 of the self-cleaning intelligent membrane pool device, connected to the air inlet 2, and is provided with uniformly arranged high-pressure nozzles 12. The high-pressure cleaning device 11 adopts an operating pressure of 3-5 kg, and the operating pressure is monitored by a pressure gauge on the upper head of the self-cleaning intelligent membrane pool device. The high-pressure cleaning device 11 adopts a U-shaped structure, and the high-pressure nozzles 12 are uniformly arranged on both sides thereof, and 8 high-pressure nozzles 12 are provided on one side;

[0051] The rotating support 7 is arranged at the lower part of the membrane assembly 6 of the self-cleaning intelligent membrane pool device. The rotating support 7 is provided with an opening of the air inlet 2 and evenly arranged air holes 71, and the air holes 71 correspond to the compressed air inlet 10 on the membrane assembly head 4 at the lower part of the membrane assembly 6.

[0052] The lower end of the eccentric manhole 1 is connected to the upper head of the self-cleaning intelligent membrane pool device through an adapted missing block column, and the upper end is a spherical missing structure; the air hole 71 adopts a circular structure with an aperture range of 3mm; the air hole 71 is provided with 4 circles from the inside to the outside.

[0053] The high pressure cleaning device 11 and the rotating support platform 7 are connected to a PLC automatic control system through a controller.

Claims

1. A self-cleaning intelligent membrane pool device, characterized in that: It comprises an upper end cap, a tank body and a lower end cap, wherein the upper end cap is provided with an eccentric manhole (1), the tank body is provided with a membrane assembly (6), a high-pressure cleaning device (11) and a rotating support (7), the middle of the tank body is provided with a through air inlet (2), and both sides are provided with a water inlet (5) and a water outlet (3), the lower end cap is provided with an inspection hole (8) and a sewage outlet (9), the water outlet (3) is a backwash water inlet during backwashing, and the upper and lower ends of the membrane assembly (6) are provided with membrane assembly heads (4); The eccentric manhole (1) is arranged on the upper head of the self-cleaning intelligent membrane pool device, and its cross-section is a centrally symmetrical structure with the center point at 3 / 4 of the diameter of the tank body of the self-cleaning intelligent membrane pool device. The opening area of ​​the eccentric manhole (1) is 1 / 8-1 / 4 of the cross-sectional area of ​​the upper head of the tank body; The membrane assembly (6) is composed of a plurality of membrane elements (61) spliced ​​together and arranged inside the tank of the self-cleaning intelligent membrane pool device. The membrane elements (61) are evenly distributed. The membrane assembly (6) is of a centrally symmetrical structure with a through hole for the air inlet (2) in the middle. The membrane assembly (6) adopts a melon-shaped structure or a multi-circular structure. The high-pressure cleaning device (11) is arranged on the side of the membrane assembly (6) of the self-cleaning intelligent membrane pool device, connected to the air inlet (2), and provided with uniformly arranged high-pressure nozzles (12). The high-pressure cleaning device (11) adopts an operating pressure of 3-5 kg, and the operating pressure is monitored by a pressure gauge on the upper head of the self-cleaning intelligent membrane pool device. The high-pressure cleaning device (11) adopts a U-shaped structure or a cylindrical ring structure; The rotating support (7) is arranged at the lower part of the membrane assembly (6) of the self-cleaning intelligent membrane pool device, and the rotating support (7) is provided with an opening of the air inlet (2) and evenly arranged air holes (71), and the air holes (71) correspond to the compressed air inlet (10) on the membrane assembly head (4) at the lower part of the membrane assembly (6).

2. The self-cleaning intelligent membrane pool device according to claim 1, characterized in that: The eccentric manhole (1) is made of closed transparent material, its cross-section is circular, and the opening area is 1 / 8 of the cross-section area of ​​the upper end cap of the tank body.

3. The self-cleaning intelligent membrane pool device according to claim 2 is characterized in that: The lower end of the eccentric manhole (1) is connected to the upper head of the self-cleaning intelligent membrane pool device through an adapted missing block column, and the upper end is a spherical missing structure.

4. The self-cleaning intelligent membrane pool device according to claim 1, characterized in that: When the membrane assembly (6) adopts a melon-shaped structure, the inner circle is provided with 4 first fan-shaped structures that are evenly distributed and have the same shape and structure, and the outer circle is correspondingly provided with 12 second fan-shaped structures that are evenly distributed and have the same shape and structure; the first fan-shaped structures and the second fan-shaped structures have the same area.

5. The self-cleaning intelligent membrane pool device according to claim 1, characterized in that: When the membrane assembly (6) adopts a multi-circular structure, the inner circle is provided with 9 first circular structures that are evenly distributed and have the same shape and structure, and the outer circle is correspondingly provided with 12 second circular structures that are evenly distributed and have the same shape and structure; the first circular structures and the second circular structures have the same area.

6. The self-cleaning intelligent membrane pool device according to claim 1, characterized in that: When the high-pressure cleaning device (11) adopts a U-shaped structure, the high-pressure nozzles (12) are evenly arranged on both sides thereof, and 8 to 10 high-pressure nozzles (12) are arranged on one side.

7. The self-cleaning intelligent membrane pool device according to claim 1, characterized in that: When the high-pressure cleaning device (11) adopts a cylindrical ring structure, the high-pressure nozzles (12) are evenly arranged on its side wall in both horizontal and vertical directions; 8 to 10 high-pressure nozzles (12) are arranged in a circle in horizontal direction and 8 to 10 are arranged in a row in vertical direction.

8. The self-cleaning intelligent membrane pool device according to claim 1, characterized in that: The pores (71) are circular in structure, and the pore diameter ranges from 1 to 8 mm.

9. The self-cleaning intelligent membrane pool device according to claim 1, characterized in that: The air holes (71) are provided with 3-5 circles from the inside to the outside.

10. The self-cleaning intelligent membrane pool device according to claim 1, characterized in that: The high-pressure cleaning device (11) and the rotating support platform (7) are connected to a PLC automatic control system via a controller.

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