CN113491382A

CN113491382A - Brush cleaner

Info

Publication number: CN113491382A
Application number: CN202010258407.XA
Authority: CN
Inventors: 何唯平
Original assignee: Guangdong Oceanpower Technology Co ltd; Shenzhen Winning Bid South Low Carbon Economy Standardization Research Institute Co ltd Dongguan Branch; Shenzhen Oceanpower Industrial Co Ltd
Current assignee: Guangdong Oceanpower Technology Co ltd; Shenzhen Winning Bid South Low Carbon Economy Standardization Research Institute Co ltd Dongguan Branch; Shenzhen Oceanpower Industrial Co Ltd; Ocean Power Corp
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-10-12

Abstract

The invention discloses a wiper, which is used for removing deposits from the outer surface of a circular tube and consists of a brush sleeve and a wiping element. The brush sleeve is machined and provided with a circumferential groove which is opened inwards, a circumferential groove which is opened outwards and two axial annular openings which are arranged on the same axis and are used for a round pipe or a cylinder which needs to be cleaned to pass through. The brush sleeve is provided with a circumferential opening having a circumferential angle of less than 180 degrees in a circumferential groove opened inward so as to radially insert or remove the brush element, and a space is left for the brush element to expand or contract in the radial direction in accordance with a change in the diameter of the cylindrical surface. The outwardly open circumferential groove is used for coupling with a drive device.

Description

Brush cleaner

Technical Field

The invention relates to the field of ultraviolet disinfection, in particular to a brush cleaner.

Background

The ultraviolet radiation fluid treatment technology has the advantages of high sterilization efficiency, broad sterilization spectrum for efficiently killing most pathogenic protozoa, bacteria and viruses, no secondary pollution, safe and reliable operation, simple and convenient maintenance, low cost and small occupied area, so the ultraviolet radiation fluid treatment technology is increasingly widely regarded and applied to modern drinking water and sewage treatment. However, the ultraviolet radiation fluid treatment apparatus, particularly the fluid treatment apparatus using the medium-pressure ultraviolet lamp, causes the surface of the quartz glass sleeve for preventing the ultraviolet radiation source from contacting the fluid from being scaled due to suspended matters existing in water and large heat generated by the ultraviolet lamp in operation during use, generates deposits on the surface of the sleeve, reduces the radiation of ultraviolet rays transmitted from the light source to the fluid, and reduces the radiation intensity of the ultraviolet rays, thereby causing a reduction in the sterilization efficiency and effectiveness. Therefore, during operation, the uv disinfection apparatus is required to clean the outer surface of the cannula every week or even more frequently, depending on the water quality conditions and requirements. At present, the method for cleaning the surface of the sleeve adopted by the ultraviolet disinfection device is not classified into chemical cleaning and mechanical cleaning. The chemical cleaning is usually to arrange a cleaning liquid chamber on a sleeve wiper to store chemical agents, and during cleaning, the surface of the sleeve is wiped back and forth by driving the wiper which is arranged on the surface of the sleeve and filled with chemical cleaning liquid to do reciprocating mechanical motion along the axis of the sleeve, so that the purpose of removing deposits on the surface of the sleeve is achieved. This method, while effective in cleaning the casing surface, has the following disadvantages: the equipment operation needs to be interrupted when the cleaning agent is added, and the maintenance is inconvenient. Since the cleaning liquid chamber itself is closed, the cleaning liquid cannot be added at any time. For the ultraviolet disinfection reactor installed in the pressure pipeline, the cleaning liquid chamber is positioned in the sealed disinfection reactor, when cleaning liquid needs to be added, equipment must be disassembled to add chemical cleaning agent, the specific operation is firstly stopped, then the cavity of the closed ultraviolet disinfector is opened, the wiping device is moved to the end part or the outside of the cavity of the ultraviolet disinfector, the cleaning liquid returns to the position after being added, the ultraviolet disinfector is closed again, and then the ultraviolet disinfector can be restarted for cleaning or disinfection. Chemical cleaning liquid consumed in the cleaning process remains in the water body after the disinfection treatment, and causes chemical pollution to the treated water.

The mechanical cleaning is that the brush unit around the casing is driven by external force to reciprocate along the casing axis, and the mechanical friction between the brush unit and the casing is used to eliminate dirt and deposit adhered to the casing. The brush wiper consists of a brush sleeve and a brush element. The brushing elements commonly used today have annular scraping blades made of teflon, viton or other materials. These brush elements are arranged in a brush sleeve, connected in a specific manner to a drive device via the brush sleeve and are moved with the drive device in a reciprocating linear motion along the axis of the sleeve. The wipers constructed from these wiper elements are simple in construction and provide some cleaning of the cannula surface, but are less effective at removing scale from the cannula surface due to the inherent slip of the fluoropolymer and the lack of a hard, sharp scraping surface. Furthermore, such scrubbing elements are also not able to accommodate small variations in the outer diameter dimensions of the tubes. It is noted that in the above mechanical cleaning device, the brush elements are respectively installed into the brush sleeve from one end or both ends of the brush sleeve along the axial direction of the brush sleeve, and then the brush elements are limited in the brush sleeve at one end or both ends of the brush sleeve by the retaining ring and the elastic snap spring. Because the retainer ring and the elastic clamp spring occupy a certain length of space in the brush sleeve, ultraviolet radiation is shielded in the cleaning process, the ultraviolet radiation intensity and dosage of the ultraviolet radiation fluid treatment equipment are reduced, and the assembly and maintenance workload and complexity are increased, further exploration and finding of a simple and effective method and equipment for cleaning the outer surface of the pipe are necessary.

There is a need to further explore and find a simple and effective method and apparatus for cleaning the exterior surfaces of pipes.

Disclosure of Invention

The invention aims to provide a wiper which is used for removing deposits on the outer surface of a quartz glass round tube from ultraviolet fluid treatment equipment and has the characteristics of good cleaning effect, simple manufacturing process and convenience in mounting and dismounting. The invention provides a wiper for removing deposits on the outer surface of a quartz glass round tube in ultraviolet fluid treatment equipment, which consists of a brush sleeve and at least one wiping element. The brush sleeve is provided with a circumferential groove which is opened inwards, a circumferential groove which is opened outwards and two axial annular openings on the same axis, the circumferential groove which is opened inwards is also provided with at least one circumferential opening with a circumferential angle of less than 180 degrees, and the wiping element is arranged in the groove which is opened inwards of the brush sleeve.

Preferably, the wiper consists of a brush sleeve and at least one wiping element. The brush sleeve has an inwardly directed circumferential flange and an axially annular opening formed therethrough, at least one circumferential opening having a circumferential angle of less than 180 degrees and bolt holes for securing the sheath to the plane of the wiper support, the wiper element being disposed between the flange of the brush sleeve and the plane of the wiper support.

Preferably, the wiper is a non-closed circular frame formed by bending a U-shaped groove metal strip and an annular steel wire brush with inward end points of a plurality of elastic thin steel wires densely distributed in the U-shaped groove.

Preferably, the elastic fine steel wire is replaced by other non-metallic wires.

Preferably, the wiper is a non-closed loop wiper blade made of viton or other rubber.

Preferably, the wiper is a closed loop wiper blade made of viton or other rubber.

Preferably, the wiper is a non-closed loop wiper blade made of fluoroplastic or other non-metallic UV radiation resistant material.

Preferably, the wiper is a closed loop wiper blade or a spiral wiper blade made of fluoroplastic or other non-metallic UV radiation resistant material.

Preferably, the wiper is formed by a series of sharp-edged wire chords around the outer surface of the pipe being cleaned and the tangent points of the outer surface of the pipe, the sharp-edged wire chords being angularly offset from one another to form circumferentially evenly distributed tangent points on the cylindrical surface with which they are in contact.

Preferably, the cross section of the sharp-edged steel wire string is a quadrangle or other arbitrary polygons.

The invention has the beneficial effects that: different from the prior art, the wiper comprises a non-closed circular ring and a plurality of elastic metal wires, wherein the non-closed circular ring is formed by bending a groove-shaped metal strip, the groove faces inwards, the elastic metal wires are densely distributed in the groove, the elastic metal wires are arranged along the radial direction of the non-closed circular ring and are fixed in the groove of the non-closed circular ring, and radial openings are formed at two ends of the groove-shaped metal strip. In the cleaning process, the elastic metal wire is extruded and bent to deform when the ultraviolet disinfection tube passes through the radial opening, the end point of the elastic metal wire is tightly attached to the tube column surface of the ultraviolet disinfection tube due to the elasticity of the elastic metal wire and brushes the outer wall surface of the circular tube contacted with the elastic metal wire along with the reciprocating axial movement of the driving device, and the cleaning effect is greatly increased. In addition, the invention can also enhance the cleaning effect by increasing the density of the elastic metal wire end points in the groove, and has the advantages of good cleaning effect, simple manufacturing process and convenient assembly and disassembly.

Drawings

FIG. 1 is an exploded perspective view of embodiment 1 of the wiper of the present invention;

FIG. 2 is an axial cross-sectional view of FIG. 1;

FIG. 3 is a cross-sectional view of the brush sleeve of FIG. 1 at the circumferential opening;

FIG. 4 is an exploded perspective view of embodiment 2 of the scrubber of the present invention;

FIG. 5 is a cross-sectional view of embodiment 2 of the scrubber with an inner surrounding annular brush;

FIG. 6 is a cross-sectional view of the annular brush sleeve of FIG. 4 at the circumferential opening; and

FIG. 7 is a sectional view of the annular brush holder of example 2 at the circumferential opening.

Detailed Description

Referring to fig. 1 and 2, the invention provides a wiper for removing deposits on the outer surface of a quartz glass round tube in ultraviolet fluid treatment equipment, which comprises a brush sleeve and at least one wiping element. The brush sleeve is provided with a circumferential groove which is opened inwards, a circumferential groove which is opened outwards and two axial annular openings on the same axis, the circumferential groove which is opened inwards is also provided with at least one circumferential opening with a circumferential angle of less than 180 degrees, and the wiping element is arranged in the groove which is opened inwards of the brush sleeve.

Example 1

FIG. 1 shows two basic elements of the wiper described herein. For clarity, these elements are shown in axial perspective. Shown in fig. 1 is a brush sleeve 1O, to the left of which are two brushing elements 12. The scrubbing element 12 has an opening 22. The two brushing elements are at an angle of 180 degrees to each other in the direction of their opening. As shown in figure 2, the brush sleeve 1O has a hollow cylindrical shape, i.e. has an outer cylindrical wall 20 and an inner cylindrical wall 18, in which inner cylindrical wall 18 two spaced apart flanges 16 are provided. The scrubbing element 12 is confined within a recess defined by the inner cylindrical wall surface 18 of the brush housing and the two flanges 16, as indicated by the reference numeral 11 in figure 2. The width of the groove 11 is determined by the thickness of the wiping element. The brush casing 10 is also externally provided with a circumferential groove 14 open to the outside for the attachment of a washing brush holder. The driving device of the brush cleaner drives the brush sleeve 1O and the brush cleaning element 12 to do reciprocating linear motion along the axis of the sleeve passing through the central hole 19 of the brush sleeve and the brush cleaning element 12 through the bracket of the cleaning brush, thereby achieving the aim of cleaning the sleeve. As shown in figure 3, the brush sleeve 10 is also provided with a circumferential opening 17 to facilitate radial insertion and removal of the brush elements into and out of the brush sleeve. The width of the circumferential opening should not be greater than the diameter of the circumferential outer frame of the wiping element, so that a transition or interference fit is formed between the circumferential brush frame 20 and the circumferential opening 17 in the brush sleeve in order to prevent the wiping element from sliding out of the brush sleeve through the circumferential opening due to its own weight when the quartz glass sleeve to be cleaned is removed or not installed.

It can be seen that embodiment 1 of the present invention simplifies the process of assembling and repairing the wiper to replace the wiper element by providing a circumferential opening in the brush housing to radially load and unload the wiper element from the brush housing, axially limiting the movement of the wiper element within the brush housing by an inwardly directed flange provided on the brush housing, and eliminating the need for a circlip and a gasket to axially load and unload the wiper element from the brush housing.

The brushing element can be a ring-shaped steel wire brush which comprises a non-closed circular frame formed by bending a U-shaped groove metal strip and a plurality of radial elastic thin steel wires which are arranged in the groove of the frame and distributed densely along the circumference, wherein the end points of the steel wires face inwards, or an open or closed scraping piece made of fluororubber, fluoroplastic or other non-metallic materials. Due to the elasticity of the material and the presence of the radial openings 22 on the scrubbing element, the scrubbing element can be deformed outwards or inwards due to the different degrees of extrusion caused by the change of the outer diameter of the cleaned circular tube passing through the annular opening of the scrubbing element in the process of scrubbing the cylindrical surface contacted with the scrubbing element along with the reciprocating axial movement of the brush sleeve, so that the scrubbing device can better adapt to the change of the outer diameter of the cleaned circular tube, and the cleaning effect is enhanced.

Due to the radial openings 22, the annular opening of the scrubbing element is not a complete circle, and the size of the opening 22 is increased or decreased with the change of the diameter of the cylindrical surface to be cleaned, thereby affecting the cleaning effect of the cylindrical surface corresponding to the opening 22. In order to avoid this, the ideal brush element configuration is shown in fig. 1, i.e. two brush elements 12 are mounted in the brush housing 10, the radial opening directions of which are at an angle of 180 degrees to each other.

It should be noted that although two brushing elements 12 are used in the embodiment example 1 shown in fig. 1 and 2, it does not depart from the essence of the present invention to use only one brushing element 12 or to make the brushing elements into a complete closed circle.

Example 2

A specific implementation of example 2 is shown in fig. 5 and 6. The inwardly projecting lip and the outwardly facing recess at one end of the sleeve in embodiment 1 shown in figure 1 are simply changed to 31 which has the same function as the inwardly projecting lip 16 and the outwardly facing recess 14 at the end of the sleeve which is replaced. In fig. 5, a brush sleeve 32 is shown, on the right side of which are two brush elements 12 and a washing holder 31 in this order. As shown in figure 6, the brush sleeve 32 has a hollow cylindrical shape with an outer cylindrical wall 30 and an inner cylindrical wall 37, and an inwardly extending flange 38 is provided at one end of the inner cylindrical wall 37. The scrubbing elements 12 are confined within a recess defined by the inner cylindrical wall 37 of the brush housing, the flange 38 and the cleaning support 31. The width of the groove is determined by the thickness of the scrubbing element. The brush holder 32 is further provided with a through hole 42 for connecting the brush holder 32 and the washing support 31, and is connected to the washing support 31 by fastening the bolt 35, the lock washer 34 and the plate washer 33. The brush driving device drives the brush sleeve 32 and the brush element 12 to do reciprocating linear motion along the sleeve axis which passes through the central hole 39 of the brush sleeve, the hole 40 on the cleaning bracket and the annular opening of the brush element 12 through the cleaning bracket, thereby achieving the purpose of cleaning the sleeve.

As in example 1, the brush sleeve 32 is also provided with a circumferential opening 36 for radially receiving the scrubbing elements therein, as shown in figure 7. The width of the circumferential opening should be no greater than the diameter of the circumferential outer frame of the wiping element so that a transition or interference fit is formed between the circumferential brush frame 20 and the circumferential opening 36 in the brush sleeve to prevent the wiping element from sliding under its own weight from inside the brush sleeve through the circumferential opening when the quartz glass sleeve to be cleaned is removed or not installed.

Example 2 of the present invention eliminates the circlip and gasket necessary to axially load or unload the scrubbing element into or from the brush housing by providing a circumferential opening in the brush housing to radially load or unload the scrubbing element from the brush housing, by axially limiting the movement of the scrubbing element within the brush housing by an inwardly directed flange provided at one end of the brush housing and a cleaning support attached at the other end. Although the brush holder 32 is bolted to the washing holder 31 in the embodiment 2 of the present invention, the connection does not interfere with the operation of inserting the brush element 12 into the brush holder 32 or removing the brush element from the brush holder 32, i.e., the bolt connection does not have to be removed during maintenance or replacement of the brush element 12, thereby simplifying the process of assembling the wiper and maintaining and replacing the brush element.

As in example 1, although two brushing elements 12 are used in example 2 shown in fig. 5 and 6, it is not departing from the essence of the invention to use only one brushing element 12 or to connect the radial openings of the brushing elements to form a complete closed circle.

The invention is technically characterized in that a brush sleeve is radially installed in a brushing element through a circumferential opening on the outer cylindrical surface of the brush sleeve, and the annular outer edge of the brushing element is in transition or interference fit with the circumferential opening on the brush sleeve so as to prevent the brushing element from sliding down from the brush sleeve through the circumferential opening due to the self-mass under the condition that a cleaned quartz glass sleeve is disassembled or not installed. Although two embodiments of the present invention in which an endless wire brush is the scrubbing element have been illustrated in the accompanying drawings and described in detail above, it will be apparent to those skilled in the art that any changes and modifications that do not depart from the spirit of the invention are intended to be within the scope of this patent.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A wiper for removing deposits from the outer surface of a quartz glass round tube in an ultraviolet fluid treatment device is characterized by consisting of a brush sleeve and at least one wiping element. The brush sleeve is provided with a circumferential groove which is opened inwards, a circumferential groove which is opened outwards and two axial annular openings on the same axis, the circumferential groove which is opened inwards is also provided with at least one circumferential opening with a circumferential angle of less than 180 degrees, and the wiping element is arranged in the groove which is opened inwards of the brush sleeve.

2. A scrubber according to claim 1, characterized in that the scrubber consists of a brush housing and at least one scrubbing element. The brush sleeve has an inwardly directed circumferential flange and an axially annular opening formed therethrough, at least one circumferential opening having a circumferential angle of less than 180 degrees and bolt holes for securing the sheath to the plane of the wiper support, the wiper element being disposed between the flange of the brush sleeve and the plane of the wiper support.

3. The wiper according to claims 1 to 2, wherein the wiper comprises a non-closed circular frame formed by bending a U-shaped groove metal strip and an annular wire brush having inward-facing ends of a plurality of elastic thin wires densely arranged in the U-shaped groove.

4. A scrubber according to claims 1-3, characterized in that the elastic thin steel wires are replaced by other non-metallic wires.

5. A scrubber according to claims 1-3, characterized in that the scrubber is a non-closed loop-shaped wiper blade made of fluororubber or other rubber.

6. A scrubber according to claims 1-3, characterized in that the scrubber is a closed loop wiper blade made of fluorubber or other rubber.

7. A wiper according to claims 1 to 3, wherein the wiper is a non-closed loop wiper blade made of fluoroplastic or other non-metallic uv-resistant material.

8. A wiper according to claims 1 to 3, wherein said wiper is a closed loop wiper blade or a spiral wiper blade made of fluoroplastic or other non-metallic uv-resistant material.

9. A wiper as defined in claims 1 to 3, wherein said wiper is formed by a series of sharp edged wire chords around the outer surface of the pipe being cleaned and the tangency points of the outer surface of the pipe, said sharp edged wire chords being angularly offset to each other to form circumferentially evenly distributed tangency points on the cylindrical surface in contact therewith.

10. The wiper of claim 9, wherein said sharp-edged wire string has a quadrilateral or other arbitrary polygon cross-section.