Ultrafiltration cleaning device

Abstract

The utility model relates to the technical field of ultrafiltration, and discloses an ultrafiltration cleaning device, which comprises a filter cartridge shell and a filter element, the filter cartridge shell comprises a cartridge body, an upper cover body and a lower cover body, a cleaning mechanism is rotatably arranged in the filter cartridge shell, the cleaning mechanism comprises a rotating sleeve, a spiral guide vane is fixedly arranged on the outer surface of the rotating sleeve, and the outer surface of the rotating sleeve is fixedly provided with a rotating shaft. A hydraulic impeller is fixedly mounted at the top end of the rotating sleeve, a plurality of slag scraping openings are formed in the surface of the rotating sleeve, and the rotating sleeve movably sleeves the surface of the filter element. The rotating sleeve of the cleaning mechanism of the device sleeves the surface of the filter element, a concentrated solution in the filter cartridge shell is sucked from the waste discharge pipe, water flow drives the hydraulic impeller to rotate, the cleaning mechanism is driven by the hydraulic impeller to rotate, impurities on the surface of the filter element are cleaned by using the slag scraping opening in the rotating sleeve, and then the impurities are discharged from the waste discharge pipe. By means of the design, the structure of the cleaning mechanism is simplified, the requirement for installation in the filter cartridge is met, and the automatic cleaning and impurity removing effects can be achieved through hydraulic driving.

Description

Technical Field

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

[0002] The ultrafiltration device is an advanced membrane separation technology. The solvent and various small solutes contained in the feed liquid pass through the filter membrane from the high-pressure feed liquid side to the low-pressure side, so as to obtain the permeate. Regarding the self-cleaning technology of ultrafiltration, the patent document with the publication number CN215842520U discloses an ultrafiltration cleaning device. An electric slideway is arranged inside the device housing, an electric slider is arranged inside the electric slideway, a fixed housing is arranged on one side of the electric slider, a rotating wheel is arranged inside the fixed housing, a transmission belt is arranged on the outer side of the rotating wheel, a transmission wheel is arranged inside the transmission belt, a rotating ring is arranged at the lower end of the transmission wheel, a scraping knife ring is arranged at the lower end of the rotating ring, a liquid inlet pipe is arranged at the upper end of the device housing, a liquid discharge pipe is arranged at the lower end of the device housing, impurity discharge pipes are arranged on both sides of the liquid discharge pipe, and an ultrafiltration filter element is arranged inside the rotating ring. The ultrafiltration filter element includes a film body, and an inner water pipe is arranged inside the film body, which solves the problem that it is difficult for the existing ultrafiltration cleaning device to remove the impurities adsorbed on the surface of the filter element.

[0003] In the actual application process, there is not enough space between the filter cylinder and the filter element. Installing the driving mechanism for driving the scraping knife ring to move up and down, especially these driving mechanisms are soaked in the filter cylinder for a long time, with a high failure rate and high later maintenance cost, which brings inconvenience to the use. Based on this, the existing ultrafiltration cleaning device has the problems of complex driving mechanism of the cleaning component and inconvenient installation in the filter cylinder, and needs to be further improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide an ultrafiltration cleaning device to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an ultrafiltration cleaning device, including a filter cylinder housing and a filter element. The filter cylinder housing includes a cylinder body, an upper cover body and a lower cover body. The upper cover body and the lower cover body are respectively threadedly connected to the upper and lower ends of the cylinder body. A liquid inlet pipe is fixedly installed at the top of the upper cover body, a liquid outlet pipe is fixedly installed at the bottom of the lower cover body, and a waste discharge pipe is fixedly installed on the surface of the cylinder body.

[0006] A positioning component is fixedly installed inside the lower cover body, and the filter element is fixedly installed on the positioning component. A cleaning mechanism is rotatably arranged inside the filter cartridge housing. The cleaning mechanism includes a rotating sleeve. A spiral guide vane is fixedly installed on the outer surface of the rotating sleeve. A hydraulic impeller is fixedly installed at the top end of the rotating sleeve. A plurality of slag scraping ports are formed on the surface of the rotating sleeve. The rotating sleeve is movably sleeved on the surface of the filter element. The slag scraping ports on the rotating sleeve are used to clean the impurities on the surface of the filter element, and then the impurities are discharged from the waste discharge pipe along with the water flow, achieving the effect of automatic cleaning and impurity removal.

[0007] In some embodiments, the outer surface of the filter element is a filter membrane layer, the center of the filter element is a flow channel hole, the top end of the filter element is closed, and the flow channel hole is communicated with the bottom port of the filter element.

[0008] In some embodiments, the positioning component includes a central pipe. The bottom end of the central pipe is fixedly installed inside the lower cover body and is communicated with the liquid outlet pipe. The top end of the central pipe is inserted into the bottom port of the filter element.

[0009] The positioning component further includes a rotating ring. The rotating ring is rotatably connected to the inner wall of the lower cover body through a bearing. A magnetic adsorption seat is fixedly installed at the bottom end of the rotating sleeve, and a magnetic buckle is fixedly installed on the upper surface of the rotating ring. The magnetic adsorption seat is fixedly adsorbed on the upper surface of the rotating ring through the magnetic buckle to facilitate the rotation of the cleaning component.

[0010] A pressing pipe is fixedly installed inside the upper cover body. The upper end of the pressing pipe is communicated with the liquid inlet pipe. Inclined diversion holes are formed on the surface of the pressing pipe. A lifting sleeve is slidably installed on the surface of the central pipe. A support spring that presses the lifting sleeve upward is sleeved on the surface of the central pipe. The filter element is clamped between the pressing pipe and the lifting sleeve, facilitating the installation and disassembly of the filter element.

[0011] In some embodiments, two spiral guide vanes are arranged on the surface of the rotating sleeve. The spiral directions of the two spiral guide vanes are opposite. The inlet end of the waste discharge pipe is arranged in the area between the two spiral guide vanes. The spiral guide vanes have a guiding effect, enabling the internal concentrated liquid and impurities to flow along the spiral guide vanes and be discharged from the waste discharge pipe.

[0012] In some embodiments, the number of filter cartridge housings is multiple. A filter element is arranged inside each filter cartridge housing. The multiple filter cartridge housings are arranged in two rows and fixedly installed inside the support frame. A first main pipe, a second main pipe, and a third main pipe are respectively fixedly installed inside the support frame. The liquid inlet pipes of the respective filter cartridge housings are respectively communicated with the first main pipe. The liquid outlet pipes of the respective filter cartridge housings are all communicated with the second main pipe. The waste discharge pipes of the respective filter cartridge housings are all communicated with the third main pipe, realizing the parallel arrangement and connection of a plurality of filter cartridge housings and expanding the filtration capacity.

[0013] Beneficial effects

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

[0015] 1. In this ultrafiltration cleaning device, a cleaning mechanism is arranged inside the filter cartridge housing. The rotating sleeve of the cleaning mechanism is sleeved on the surface of the filter element. The concentrated liquid inside the filter cartridge housing is sucked from the waste discharge pipe. The water flow drives the hydraulic impeller to rotate. The cleaning mechanism is driven to rotate by the hydraulic impeller. The impurities on the surface of the filter element are cleaned by the slag scraping openings on the rotating sleeve, and then discharged from the waste discharge pipe. This design simplifies the structure of the cleaning mechanism, meets the requirements for installation inside the filter cartridge housing, and enables the effect of automatic cleaning and impurity removal driven by water power.

[0016] 2. In this ultrafiltration cleaning device, a pressing tube is arranged inside the upper cover body. The diversion holes on the surface of the pressing tube can spray water flow on the hydraulic impeller to accelerate the rotation of the hydraulic impeller. A central tube and a lifting sleeve are arranged inside the lower cover body. The filter element is inserted at the top of the central tube. The filter element is clamped and fixed by the pressing tube and the lifting sleeve, achieving the effect of convenient installation and disassembly. Description of the Drawings

[0017] Figure 1 is the overall three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 is the side view structure schematic diagram (partially sectioned) of the utility model;

[0019] Figure 3 is Figure 2 the enlarged structure schematic diagram at A in

[0020] Figure 4 is the internal structure schematic diagram of the filter cartridge housing;

[0021] Figure 5 is the front sectional structure schematic diagram of the filter element.

[0022] In the figure: 1 filter element, 2 cylinder body, 3 upper cover body, 4 lower cover body, 5 liquid inlet pipe, 6 liquid outlet pipe, 7 waste discharge pipe, 8 rotating sleeve, 9 spiral guide vane, 10 hydraulic impeller, 11 central tube, 12 rotating ring, 13 magnetic attraction seat, 14 pressing tube, 15 diversion hole, 16 lifting sleeve, 17 support frame, 18 first main pipe, 19 second main pipe, 20 third main pipe. Detailed Embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , the present utility model provides a technical solution: an ultrafiltration cleaning device, which includes a filter cartridge housing and a filter element 1. The outer surface of the filter element 1 is a filter membrane layer, the center of the filter element 1 is a flow channel hole, the top end of the filter element 1 is closed, and the flow channel hole is communicated with the bottom port of the filter element 1.

[0025] The filter cartridge housing includes a cylinder body 2, an upper cover body 3 and a lower cover body 4. The upper cover body 3 and the lower cover body 4 are respectively threadedly connected to the upper and lower ends of the cylinder body 2. A liquid inlet pipe 5 is fixedly installed at the top end of the upper cover body 3, a liquid outlet pipe 6 is fixedly installed at the bottom end of the lower cover body 4, and a waste discharge pipe 7 is fixedly installed on the surface of the cylinder body 2.

[0026] A positioning assembly is fixedly installed inside the lower cover body 4, the filter element 1 is fixedly installed on the positioning assembly, and a cleaning mechanism is rotatably arranged inside the filter cartridge housing. The cleaning mechanism includes a rotating sleeve 8. A spiral guide vane 9 is fixedly installed on the outer surface of the rotating sleeve 8, a hydraulic impeller 10 is fixedly installed at the top end of the rotating sleeve 8, a plurality of slag scraping openings are formed on the surface of the rotating sleeve 8, and the rotating sleeve 8 is movably sleeved on the surface of the filter element 1.

[0027] Among them, the positioning assembly includes a central pipe 11. The bottom end of the central pipe 11 is fixedly installed inside the lower cover body 4, and the central pipe 11 is communicated with the liquid outlet pipe 6. The top end of the central pipe 11 is inserted into the bottom port of the filter element 1.

[0028] The positioning assembly further includes a rotating ring 12. The rotating ring 12 is rotatably connected to the inner wall of the lower cover body 4 through a bearing. A magnetic attraction seat 13 is fixedly installed at the bottom end of the rotating sleeve 8, a magnetic buckle is fixedly installed on the upper surface of the rotating ring 12, and the magnetic attraction seat 13 is fixedly adsorbed on the upper surface of the rotating ring 12 through adsorption with the magnetic buckle.

[0029] A tightening pipe 14 is fixedly installed inside the upper cover body 3. The upper end of the tightening pipe 14 is communicated with the liquid inlet pipe 5. An inclined diversion hole 15 is formed on the surface of the tightening pipe 14. A lifting sleeve 16 is slidably installed on the surface of the central pipe 11. A support spring for upwardly pressing and tightening the lifting sleeve 16 is sleeved on the surface of the central pipe 11. The filter element 1 is clamped between the tightening pipe 14 and the lifting sleeve 16.

[0030] Sewage enters the filter cartridge housing through the liquid inlet pipe 5. The sewage passes through the filter element 1, and the filtrate enters the flow channel hole of the filter element 1, and then is discharged from the liquid outlet pipe 6. The outside of the filter element 1 is concentrated liquid containing impurities, and the concentrated liquid can be discharged from the waste discharge pipe 7.

[0031] By arranging the tightening pipe 14 inside the upper cover body 3 and the diversion hole 15 on the surface of the tightening pipe 14, water flow can be sprayed on the hydraulic impeller 10 to accelerate the rotation of the hydraulic impeller 10. By arranging the central pipe 11 and the lifting sleeve 16 inside the lower cover body 4, the filter element 1 is inserted at the top end of the central pipe 11, and the filter element 1 is clamped and fixed by the tightening pipe 14 and the lifting sleeve 16, achieving the effect of convenient installation and disassembly.

[0032] Two spiral guide vanes 9 are arranged on the surface of the rotating sleeve 8, and the spiral directions of the two spiral guide vanes 9 are opposite. The inlet end of the waste discharge pipe 7 is arranged in the area between the two spiral guide vanes 9. The spiral guide vanes 9 have the function of guiding the flow, so that the internal concentrated liquid and impurities flow along the spiral guide vanes 9 and are discharged from the waste discharge pipe 7.

[0033] In this embodiment, the number of filter cartridge housings is multiple. A filter element 1 is arranged in each filter cartridge housing. The multiple filter cartridge housings are arranged in two rows and fixedly installed in the support frame 17. A first main pipe 18, a second main pipe 19 and a third main pipe 20 are respectively and fixedly installed inside the support frame 17. Valves are arranged at the inlets and outlets of the first main pipe 18, the second main pipe 19 and the third main pipe 20. The liquid inlet pipes 5 of each filter cartridge housing are respectively communicated with the first main pipe 18, the liquid outlet pipes 6 of each filter cartridge housing are all communicated with the second main pipe 19, and the waste discharge pipes 7 of each filter cartridge housing are all communicated with the third main pipe 20, realizing the parallel arrangement and connection of several filter cartridge housings and expanding the filtration capacity.

[0034] In this ultrafiltration cleaning device, a cleaning mechanism is arranged inside the filter cartridge housing. The rotating sleeve 8 of the cleaning mechanism is sleeved on the surface of the filter element 1. The concentrated liquid inside the filter cartridge housing is sucked from the waste discharge pipe 7. The water flow drives the hydraulic impeller 10 to rotate, and the cleaning mechanism is driven to rotate by the hydraulic impeller 10. The impurities on the surface of the filter element 1 are cleaned by the slag scraping openings on the rotating sleeve 8 and then discharged from the waste discharge pipe 7. This design simplifies the structure of the cleaning mechanism, meets the requirements for installation inside the filter cartridge housing, and enables the effect of automatic cleaning and impurity removal to be achieved by hydraulic drive.

[0035] Working principle: During the filtration process, through the control of the valves, the first main pipe 18 and the second main pipe 19 are in the open state, and the third main pipe 20 is in the closed state. Sewage is input from the first main pipe 18 and enters the filter cartridge housing through the liquid inlet pipe 5. The sewage passes through the filter element 1, and the filtrate enters the flow channel holes of the filter element 1 and then is discharged from the liquid outlet pipe 6. The outside of the filter element 1 is the concentrated liquid containing impurities, and the concentrated liquid can be regularly discharged from the waste discharge pipe 7. When it is necessary to clean the impurities on the surface of the filter element 1, the valve on the second main pipe 19 is closed, and the valves of the first main pipe 18 and the third main pipe 20 are opened. By sucking the filtrate into the third main pipe 20, the water flow in the first main pipe 18 quickly enters the abutting pipe 14 and sprays out from its diversion holes 15 to drive the hydraulic impeller 10 to rotate. The cleaning mechanism rotates, and the impurities on the surface of the filter element 1 are cleaned by the slag scraping openings on the rotating sleeve 8, and then the impurities are discharged from the waste discharge pipe 7 with the water flow, achieving the effect of automatic cleaning and impurity removal.

[0036] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An ultrafiltration cleaning device, comprising a filter cartridge housing and a filter element (1), characterized in that: The filter cartridge housing comprises a cartridge body (2), an upper cover body (3) and a lower cover body (4); the upper cover body (3) and the lower cover body (4) are respectively threadedly connected to the upper and lower ends of the cartridge body (2); a liquid inlet pipe (5) is fixedly mounted on the top end of the upper cover body (3), a liquid outlet pipe (6) is fixedly mounted on the bottom end of the lower cover body (4), and a waste discharge pipe (7) is fixedly mounted on the surface of the cartridge body (2); A positioning assembly is fixedly installed inside the lower cover body (4), the filter element (1) is fixedly installed on the positioning assembly, and a cleaning mechanism is rotatably arranged inside the filter cartridge housing, the cleaning mechanism comprising a rotating sleeve (8), a spiral guide blade (9) is fixedly installed on the outer surface of the rotating sleeve (8), a hydraulic impeller (10) is fixedly installed on the top of the rotating sleeve (8), a plurality of scraping openings are opened on the surface of the rotating sleeve (8), and the rotating sleeve (8) is movably sleeved on the surface of the filter element (1).

2. An ultrafiltration cleaning device according to claim 1, characterized in that: The outer surface of the filter element (1) is a filter membrane layer, the center of the filter element (1) is a flow channel hole, the top end of the filter element (1) is closed, and the flow channel hole is connected to the bottom port of the filter element (1).

3. An ultrafiltration cleaning device according to claim 2, characterized in that: The positioning assembly comprises a central tube (11), the bottom end of the central tube (11) is fixedly mounted in the lower cover (4), the central tube (11) is connected to the liquid outlet pipe (6), and the top end of the central tube (11) is inserted into the bottom port of the filter element (1).

4. An ultrafiltration cleaning device according to claim 3, characterized in that: The positioning assembly also includes a rotating ring (12), which is rotatably connected to the inner wall of the lower cover body (4) through a bearing, a magnetic seat (13) is fixedly installed on the bottom end of the rotating sleeve (8), and a magnetic buckle is fixedly installed on the upper surface of the rotating ring (12), and the magnetic seat (13) is fixed to the upper surface of the rotating ring (12) by adsorption with the magnetic buckle.

5. An ultrafiltration cleaning device according to claim 4, characterized in that: A pressing tube (14) is fixedly installed inside the upper cover body (3), the upper end of the pressing tube (14) is connected to the liquid inlet pipe (5), an inclined flow guide hole (15) is provided on the surface of the pressing tube (14), a lifting sleeve (16) is slidably installed on the surface of the central tube (11), a supporting spring for pressing the lifting sleeve (16) upward is sleeved on the surface of the central tube (11), and the filter element (1) is clamped between the pressing tube (14) and the lifting sleeve (16).

6. An ultrafiltration cleaning device according to claim 5, characterized in that: The surface of the rotating sleeve (8) is provided with two spiral guide blades (9), the spiral directions of the two spiral guide blades (9) are opposite, and the inlet end of the waste discharge pipe (7) is arranged in the area between the two spiral guide blades (9).

7. An ultrafiltration cleaning device according to any one of claims 1 to 6, characterized in that: There are multiple filter cartridge housings, each of which is provided with a filter core (1), and the multiple filter cartridge housings are arranged in two rows and fixedly mounted in a support frame (17).

8. An ultrafiltration cleaning device according to claim 7, characterized in that: A first main pipe (18), a second main pipe (19) and a third main pipe (20) are fixedly installed inside the support frame (17), respectively; the liquid inlet pipe (5) of each filter cartridge housing is connected to the first main pipe (18), the liquid outlet pipe (6) of each filter cartridge housing is connected to the second main pipe (19), and the waste discharge pipe (7) of each filter cartridge housing is connected to the third main pipe (20).

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