Inner wall descaling structure of reclaimed water recycling device

Abstract

The invention discloses an inner wall descaling structure of a reclaimed water recycling device, and relates to the technical field of reclaimed water treatment.The inner wall descaling structure comprises a vertically-installed fixed pipe, a detachable pipe is detachably installed on the fixed pipe, a descaling device used for conducting scale scraping on the inner wall of the fixed pipe is detachably installed in the detachable pipe, and the descaling device comprises a lifting driving assembly and a scale scraping assembly; the output end of the lifting driving assembly ascends and descends in the vertical direction, the output end of the scale scraping assembly rotates along the inner wall of the fixed pipe, the lifting driving assembly is detachably installed on the detachable pipe, and the scale scraping assembly is detachably installed on an output shaft of the lifting driving assembly. Efficient descaling of the inner wall of the vertical water pipe can be achieved without replacing the pipeline, and the problems that traditional pipe replacement is high in cost and tedious in operation are thoroughly solved; the whole structure is detachable, the adaptability is high, the descaling efficiency is remarkably improved, the operation period is shortened, meanwhile, pipeline blockage and corrosion can be avoided, conveying energy consumption is reduced, secondary water pollution is prevented, and the safety, reliability and economic value of reclaimed water reuse are greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of greywater treatment technology, and specifically relates to an internal wall descaling structure for a greywater reuse device. Background Technology

[0002] With water scarcity becoming increasingly prominent, greywater reuse has become an important way to alleviate the contradiction between water supply and demand, and is widely used in various fields such as industrial production, municipal greening, and domestic miscellaneous uses. Greywater reuse devices, as the main treatment devices for greywater reuse, have wide applications. Patent document with publication number CN117142577B discloses a greywater reuse purification device that treats greywater through a treatment tank and an ultrafiltration water tank, and transfers wastewater through water pipes.

[0003] However, this device only descales the treatment tank and ultrafiltration water tank, not the water pipes, especially vertical pipes like the second inlet pipe. Thick scale buildup on the inner walls of vertical pipes continuously reduces the cross-sectional area for flow, increasing energy consumption and potentially causing blockages that directly interrupt the reclaimed water reuse process. Scale buildup also accelerates corrosion of the pipe walls, promotes the growth of harmful bacteria, and causes secondary water pollution, reducing the safety and reliability of reclaimed water reuse. Currently, descaling vertical pipes usually involves replacing the pipes, which is costly and labor-intensive. Summary of the Invention

[0004] In view of the problems mentioned in the background art, the purpose of this invention is to provide an inner wall descaling structure for a greywater reuse device to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0006] A descaling structure for the inner wall of a greywater reuse device includes a vertically installed fixed pipe, a detachable pipe detachably installed on the fixed pipe, and a descaling device for scraping scale from the inner wall of the fixed pipe detachably installed inside the detachable pipe. The descaling device includes a lifting drive assembly and a scraping assembly. The output end of the lifting drive assembly moves vertically, and the output end of the scraping assembly rotates along the inner wall of the fixed pipe. The lifting drive assembly is detachably installed on the detachable pipe, and the scraping assembly is detachably installed on the output shaft of the lifting drive assembly.

[0007] Preferably, the detachable tube is installed at the top of the fixed tube.

[0008] Preferably, a spiral guide vane is installed inside the detachable pipe, and the water flow forms a swirling flow through the spiral guide vane.

[0009] Preferably, the descaling device is detachably mounted on the spiral guide vane.

[0010] Preferably, the lifting drive assembly includes a winding motor and a connecting rope, and the scraping assembly includes a drive motor and a scraping fan. The scraping fan is mounted on the output shaft of the drive motor. The winding motor drives the drive motor to lift and lower via the connecting rope, and the outer edge of the scraping fan adapts to the inner wall of the fixed tube to scrape away the internal scale.

[0011] Preferably, the connecting ropes are symmetrically installed on both sides of the top of the drive motor, with the output shaft of the drive motor facing downwards.

[0012] Preferably, the scraper fan has a descaling shovel on both sides of the fan blades, and the outer wall of the descaling shovel is arc-shaped.

[0013] Preferably, the blades of the scraper fan have a weight-reducing groove extending through them along the thickness direction.

[0014] Preferably, a stabilizing block made of elastic material is installed on the outer edge of the scraper blades, and the stabilizing block slides against the fixing tube.

[0015] This invention proposes an internal descaling structure for a greywater reuse device. This structure achieves efficient descaling of vertical water pipes without requiring pipe replacement, completely solving the problems of high costs and cumbersome operation associated with traditional pipe replacement methods. The detachable pipe's built-in spiral guide vanes utilize swirling flow to enhance the scouring force of the water flow on the pipe wall, inhibiting initial scale adhesion from the source. Combined with a waterproof sensor, it can monitor scale thickness in real time. The symmetrical connecting ropes driven by the winding motor effectively counteract the counter-torque generated by the motor's rotation, preventing rope entanglement and ensuring stable lifting and lowering of the descaling component. The arc-shaped descaling scrapers on both sides of the scraper fan powerfully remove stubborn scale. The stabilizing blocks made of elastic material adapt to pipe wall irregularities and slight protrusions, further improving the stability of the descaling component. The weight-reducing grooves on the fan blades reduce the load on the connecting ropes and the motor while quickly removing scraped scale. The overall structure is detachable and highly adaptable. While significantly improving descaling efficiency and shortening the operation cycle, it avoids pipe blockage and corrosion, reduces energy consumption during transportation, prevents secondary water pollution, and greatly enhances the safety, reliability, and economic value of greywater reuse.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the inner wall descaling structure of a greywater reuse device proposed in this invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the inner wall descaling structure of a greywater reuse device proposed in this invention, excluding the descaling device.

[0019] Figure 3 This is a top view of the internal wall descaling structure of a greywater reuse device proposed in this invention;

[0020] Figure 4 for Figure 3 A sectional perspective view along the AA direction;

[0021] Figure 5 This is a three-dimensional structural diagram of the descaling device proposed in this invention.

[0022] Reference numerals: 1. Fixed pipe; 2. Detachable pipe; 3. Spiral guide vane; 4. Descaling device; 41. Mounting pipe; 42. Rewinding motor; 43. Winding roller; 44. Connecting rope; 45. Mounting plate; 46. Drive motor; 47. Scraper fan; 471. Descaling shovel; 472. Weight reduction groove; 48. Stabilizing block. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] Example 1

[0025] refer to Figures 1 to 5 The device includes a vertically installed fixed pipe 1. The descaling structure of the inner wall of the greywater reuse device described in this embodiment includes a detachable pipe 2, which is detachably installed on the top of the fixed pipe 1. A descaling device 4 for scraping scale from the inner wall of the fixed pipe 1 is detachably installed inside the detachable pipe 2. The descaling device 4 includes a lifting drive assembly and a scraping assembly. The output end of the lifting drive assembly moves up and down in the vertical direction, and the output end of the scraping assembly rotates along the inner wall of the fixed pipe 1. The lifting drive assembly is detachably installed on the detachable pipe 2, and the scraping assembly is detachably installed on the output shaft of the lifting drive assembly.

[0026] Preferably, a spiral guide vane 3 is installed inside the detachable pipe 2. The water flow forms a vortex through the spiral guide vane 3. The vortex can enhance the scouring force of the water flow on the pipe wall, inhibit the initial adhesion of scale, and prolong the cleaning time of the fixed pipe 1.

[0027] The spiral guide vane 3 has a spiral-shaped guide hole that extends through the thickness direction.

[0028] Preferably, a waterproof sensor, such as an ultrasonic sensor, can be installed at the bottom of the spiral guide vane 3 to monitor the thickness of dirt on the inner wall of the fixed tube 1.

[0029] Preferably, the descaling device 4 is detachably mounted on the spiral guide vane 3. Specifically, the lifting drive assembly includes an installation tube 41, a winding motor 42, a winding roller 43, and a connecting rope 44. The scraping assembly includes an installation plate 45, a drive motor 46, and a scraping fan 47. The installation tube 41 is detachably mounted on the outer edge of the top of the spiral guide vane 3 by bolts. The winding motor 42 is detachably mounted on the top of the spiral guide vane 3 by bolts. The winding roller 43 is mounted on the output shaft of the winding motor 42 and is rotatably connected to the installation tube 41. The non-output end of the drive motor 46 is fixedly connected to the installation plate 45. The connecting rope 44 is wound on the winding roller 43, and the end of the connecting rope 44 passes through the guide hole of the spiral guide vane 3 and is fixedly connected to the installation plate 45. The output shaft of the drive motor 46 faces downward, and the scraping fan 47 is mounted on the output shaft of the drive motor 46. The winding motor 42 drives the drive motor 46 to lift and lower through the connecting rope 44. The outer edge of the scraping fan 47 is adapted to contact the inner wall of the fixed tube 1 to scrape off the internal scale.

[0030] When the drive motor 46 drives the scraper fan 47 to rotate, it will generate centrifugal force and counter-torque. If only a single connecting rope 44 is used for traction, the connecting rope 44 will rotate around the rope with the counter-torque without constraint. Therefore, preferably, the winding motor 42 is set as a dual-shaft motor. The two output shafts of the dual-shaft motor are respectively fixedly connected to a set of winding rollers 43. The two sets of winding rollers 43, the two sets of connecting ropes 44, the mounting plate 45, and the drive motor 46 are all symmetrical about the axis of the fixed tube 1. The symmetrical connecting ropes 44 counteract the counter-torque through symmetrical tension, preventing rotation and allowing the scraper fan 47 to rise and fall stably.

[0031] Furthermore, to improve the stability of the scraper fan 47, a stabilizing block 48 made of elastic material is installed on the outer edge of the scraper fan 47 blades. The stabilizing block 48 slides against the fixed tube 1, so that the scraper fan 47 always abuts against the inner wall of the fixed tube 1 and can adapt to deformation according to the non-roundness or slight protrusion of the tube wall.

[0032] Preferably, the scraper fan 47 has a descaling shovel 471 on both sides of the fan blades. The outer wall of the descaling shovel 471 is arc-shaped to facilitate the scraping of stubborn dirt from the inner wall of the fixed pipe 1.

[0033] Preferably, the blades of the scraper fan 47 are provided with a weight-reducing groove 472 through the thickness direction to reduce the load on the connecting rope 44 and the drive motor 46. The weight-reducing groove 472 can also remove dirt.

[0034] In summary, during use, the detachable pipe 2 is installed at the top of the fixed pipe 1, and the top of the detachable pipe 2 is fixedly connected to the output end of another fixed pipe 1 or the previous component. During flow guidance, the spiral guide vane 3 can form a vortex, which enhances the scouring force of the water flow on the pipe wall and inhibits the initial adhesion of scale. When the scale thickness reaches the descaling standard or after running for a period of time, the water flow is cut off, the detachable pipe 2 is removed, the installation pipe 41 and the winding motor 42 are installed at the top of the spiral guide vane 3, and the connecting rope 44 is passed through the guide hole and installed on the installation plate 45. After installation, the scraper fan 47 is placed inside the fixed pipe 1, so that the stabilizing block 48 is close to the inner wall of the fixed pipe 1, and then the detachable pipe 2 is reinstalled on the fixed pipe 1.

[0035] Start the winding motor 42, which drives the winding roller 43 to rotate and unwind. The descaling device 4 descends under the action of gravity. At the same time, the drive motor 46 starts and drives the scraper fan 47 to rotate. The scraper fan 47 scrapes the dirt on the inner wall of the fixed tube 1. The winding motor 42 drives in the reverse direction, which can drive the scraper assembly to rise again through the connecting rope 44.

[0036] This descaling structure achieves efficient descaling of the inner wall of vertical water pipes without replacing existing pipes, completely solving the problems of high cost and cumbersome operation associated with traditional pipe replacement methods. The spiral guide vane 3 built into the detachable pipe 2 utilizes swirling flow to enhance the scouring force of the water flow on the pipe wall, inhibiting the initial adhesion of scale from the source. Combined with a waterproof sensor, it can also monitor the scale thickness in real time. The symmetrical connecting rope 44 driven by the winding motor 42 effectively counteracts the counter-torque generated by the rotation of the drive motor 46, preventing the connecting rope 44 from tangling and ensuring stable lifting and lowering of the descaling components. The arc-shaped descaling scrapers 4 on both sides of the scraper fan 47... 71 can powerfully remove stubborn scale. The stabilizing block 48, made of elastic material, can adapt to the non-circularity and slight protrusion of the pipe wall, further improving the stability of the descaling component. The weight-reducing groove 472 on the fan blades reduces the load on the connecting rope 44 and the drive motor 46, and can quickly remove the scraped scale. The overall structure is detachable and highly adaptable. While significantly improving descaling efficiency and shortening the operation cycle, it can avoid pipe blockage and corrosion, reduce transportation energy consumption, prevent secondary water pollution, and greatly improve the safety, reliability and economic value of greywater reuse.

[0037] It should be understood that the terms "length", "thickness", "upper", "lower", "inner", "outer", "axial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A descaling structure for the inner wall of a greywater reuse device, comprising a vertically installed fixed pipe (1), characterized in that: A detachable tube (2) is detachably installed on the fixed tube (1). A descaling device (4) for scraping the inner wall of the fixed tube (1) is detachably installed inside the detachable tube (2). The descaling device (4) includes a lifting drive assembly and a scraping assembly. The output end of the lifting drive assembly moves up and down in the vertical direction, and the output end of the scraping assembly rotates along the inner wall of the fixed tube (1). The lifting drive assembly is detachably installed on the detachable tube (2), and the scraping assembly is detachably installed on the output shaft of the lifting drive assembly.

2. The descaling structure of the inner wall of the greywater reuse device according to claim 1, characterized in that: The detachable tube (2) is installed at the top of the fixed tube (1).

3. The descaling structure of the inner wall of the greywater reuse device according to claim 1, characterized in that: The detachable pipe (2) is equipped with a spiral guide vane (3), and the water flow forms a vortex by passing through the spiral guide vane (3).

4. The descaling structure of the inner wall of the greywater reuse device according to claim 3, characterized in that: The descaling device (4) is detachably installed on the spiral guide vane (3).

5. The descaling structure of the inner wall of the greywater reuse device according to claim 1, characterized in that: The lifting drive assembly includes a winding motor (42) and a connecting rope (44), and the scraping assembly includes a drive motor (46) and a scraping fan (47). The scraping fan (47) is mounted on the output shaft of the drive motor (46). The winding motor (42) drives the drive motor (46) to lift and lower through the connecting rope (44). The outer edge of the scraping fan (47) is adapted to contact the inner wall of the fixed tube (1) to scrape off the internal scale.

6. The descaling structure of the inner wall of the greywater reuse device according to claim 5, characterized in that: The connecting rope (44) is symmetrically installed on both sides of the top of the drive motor (46), with the output shaft of the drive motor (46) facing downwards.

7. The descaling structure of the inner wall of the greywater reuse device according to claim 5, characterized in that: The scraper fan (47) has a scraper (471) on both sides of the fan blades. The outer wall of the scraper (471) is arc-shaped.

8. The descaling structure of the inner wall of the greywater reuse device according to claim 5, characterized in that: The blades of the scraper fan (47) have a weight-reducing groove (472) extending through the thickness direction.

9. The descaling structure of the inner wall of the greywater reuse device according to claim 5, characterized in that: The outer edge of the blades of the scraper fan (47) is fitted with a stabilizing block (48) made of elastic material, which slides against the fixing tube (1).

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