Electrochemistry-based descaling device and descaling method

Abstract

The invention relates to the technical field of electrochemical water treatment, and discloses an electrochemistry-based descaling device and a descaling method.The electrochemistry-based descaling device comprises a cylinder, an anode body and a cathode body, the anode body and the cathode body are installed in the cylinder, and the anode body and the cathode body are connected with a power source; a first driving assembly for driving the cathode body to rotate is mounted on the cylinder, the first driving assembly comprises a sun gear, a planetary gear and a gear ring, the planetary gear is meshed with the sun gear and the gear ring adjacent to the planetary gear, the cathode body comprises a conducting rod, the conducting rod penetrates through the planetary gear, and the planetary gear is meshed with the conducting rod. The planetary gear is insulated from the conducting rod, the first driving assembly further comprises a driving part for driving the sun gear to rotate, and a scraping plate is mounted on the cathode body and is in contact with the inner wall of the cylinder. According to the invention, the descaling difficulty can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electrochemical water treatment, and in particular to an electrochemical-based descaling device and descaling method. Background Art

[0002] Chemical water treatment system equipment is relatively simple, occupies a small area, and has low operating and maintenance costs. The reaction process of electrochemical water treatment is generally carried out at room temperature and pressure, and does not require other special conditions. It has broad application prospects and development potential.

[0003] Currently, the electrochemical-based descaling device includes a cylinder and a cathode plate and a negative plate installed in the cylinder. During the electrochemical water treatment process, the enrichment and deposition of scaling ions such as calcium, magnesium, and alkalinity in the water will cause scaling on the cylinder wall. Scale is also easily attached to the cathode plate, which generally needs to be scraped off manually or with a scraper.

[0004] Regarding the above-mentioned related technologies, descaling is mainly carried out after the scale has been formed, and the descaling is difficult. Summary of the invention

[0005] In order to reduce the difficulty of descaling, the present application provides an electrochemical-based descaling device and descaling method.

[0006] In a first aspect, the present application provides an electrochemical descaling device, which adopts the following technical solution: A descaling device based on electrochemistry comprises a cylinder and an anode body and a cathode body installed in the cylinder, the anode body and the cathode body are respectively connected to a power supply, a first drive assembly for driving the cathode body to rotate is installed on the cylinder, the first drive assembly comprises a sun gear, a planetary gear and a gear ring, the planetary gear is meshed with the adjacent sun gear and the gear ring, the cathode body comprises a conductive rod, the conductive rod passes through the planetary gear, the planetary gear and the conductive rod are insulated, the first drive assembly also comprises a drive member for driving the sun gear to rotate, a scraper is installed on the cathode body, the scraper is in contact with the inner wall of the cylinder; a guide ring and a first conductive column are installed outside the cylinder, a conductive strip is installed in the guide ring, one end of the first conductive column extends into the guide ring and keeps contact with the conductive strip, the conductive strip is connected to the power supply, and the first conductive column and the conductive rod are electrically connected.

[0007] By adopting the above technical solution, the anode body and cathode body in the cylinder are connected to the power supply to form the basis of electrochemical descaling. The cathode body is rotated by the first driving assembly (sun gear, planetary gear, gear ring). This structure enables the cathode body to rotate and revolve evenly in the cylinder, and the scraper contacts the scale layer on the inner wall of the cylinder, which improves the efficiency and uniformity of electrochemical descaling and ensures the cleanliness of the inner wall of the cylinder.

[0008] Optionally, the cathode body further includes a cathode portion, and the conductive rod and the cathode portion are rotatably connected.

[0009] By adopting the above technical solution, if the conductive rod and the planetary gear are fixedly connected, the cathode part can remain stationary.

[0010] Optionally, the scraper is mounted on the cathode part.

[0011] By adopting the above technical solution, when the cathode part remains stationary, the scraper can be brought along to contact the inner wall of the cylinder, and the scraper and the inner wall of the cylinder always keep in contact.

[0012] Optionally, a reduction motor is also included, wherein the output shaft of the reduction motor is insulated and connected to the conductive rod, the conductive rod is rotatably connected to a second conductive column, and one end of the first conductive column away from the guide ring is electrically connected to the second conductive column.

[0013] By adopting the above technical solution, the conductive rod is not rotated by the planetary gear but rotates with the planetary gear. The reduction motor can drive the conductive rod to rotate, and the rotation speed and number of rotations of the conductive rod can be changed. The second conductive column connected by the conductive rod is electrically connected to the first conductive column, ensuring that the cathode body is always connected to the power supply during the rotation process. This design improves the reliability and stability of the device.

[0014] Optionally, the cathode portion is a hollow cylindrical structure with an open lower end, and the upper end surface of the cathode portion is rotatably connected to the conductive rod.

[0015] By adopting the above technical solution, the structural design of the cathode part is conducive to the discharge of gas and liquid generated by the electrochemical reaction. The hollow cylindrical structure with an opening at the lower end allows the reaction products to flow out smoothly and avoid accumulation inside the cathode part; this design not only improves the efficiency of the electrochemical reaction, but also reduces the maintenance cost of the device.

[0016] Optionally, the conductive rod is rotatably connected to a mounting ring, the mounting ring is located below the cathode part, and the mounting ring is installed with two scraper rods, one of the scraper rods is in contact with the inner wall of the cathode part, and the other of the scraper rods is in contact with the outer wall of the cathode part.

[0017] By adopting the above technical solution, the scraper rod is in close contact with the cathode part, which avoids the accumulation of scale on the surface of the cathode part and prolongs the service life of the device.

[0018] Optionally, the scraper is mounted on a conductive rod.

[0019] By adopting the above technical solution, the scraper can move along with the rotation of the conductive rod and contact the scale layer on the inner wall of the cylinder.

[0020] In a second aspect, the present application provides an electrochemical descaling method, which adopts the following technical solution: A descaling method based on electrochemistry. According to the above-mentioned descaling device based on electrochemistry, power is first supplied to the anode body and the cathode body, the driving part is turned on, the sun gear moves circumferentially with the planetary gears, the planetary gears rotate and revolve, the cathode body moves with the rotation of the planetary gears, and the scraper contacts the inner wall of the cylinder with the movement of the cathode body.

[0021] By adopting the above technical solution, the power is first supplied and the driving part is turned on, so that the sun gear moves circumferentially with the planetary gear and rotates and revolves. The cathode body moves with the rotation of the planetary gear, and the scraper contacts the inner wall of the cylinder with the movement of the cathode body. This operation mode realizes the organic combination of electrochemical descaling and physical scraping, and improves the descaling efficiency and effect; at the same time, the implementation process of this method is simple and easy to understand, easy to operate, and easy to promote and apply in industry.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. The rotation of the cathode body and the scraping action of the scraper ensure that the scale layer on the inner wall of the cylinder can be cleaned in time. The self-rotation of the cathode body can also reduce the accumulation of scale; 2. The scraper rod can also be in contact with the conductive rod and the inner and outer walls of the cathode part, thus avoiding the accumulation of scale on the surface of the cathode part and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a cross-sectional view of the internal structure of Example 1 of the present application; Figure 2 It is a schematic diagram of the external overall structure of Example 1 of the present application; Figure 3 yes Figure 1 A magnified schematic diagram of point A; Figure 4 It is a schematic diagram of the external overall structure of Example 2 of the present application; Figure 5 This is a cross-sectional view of the internal structure of Example 2 of the present application.

[0024] Explanation of the reference numerals in the accompanying drawings: 10, cylinder; 20, anode body; 30, cathode body; 31, conductive rod; 32, cathode part; 33, support ring; 34, mounting ring; 35, scraper rod; 36, conductive section; 37, insulating section; 38, first connecting rod; 39, second connecting rod; 40, first drive assembly; 41, sun gear; 42, planetary gear; 43, gear ring; 44, driving member; 45, driving wheel; 46, driven wheel; 50, scraper; 60, guide ring; 61, conductive strip; 70, first conductive column; 71, conductive block; 80, second conductive column; 90, sewage outlet 11, reduction motor. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-5 This application is described in further detail.

[0026] The present application discloses an electrochemical descaling device. Figure 1 , an electrochemical descaling device includes a cylinder 10 and an anode body 20 and a cathode body 30 installed in the cylinder 10, the anode body 20 and the cathode body 30 are respectively connected to a power source, and the embodiment of the present application uses a stainless steel electrode as a substrate. It is a prior art that the cathode body 30 and the anode body 20 are energized to perform water treatment, which is not described in detail in this application. A first driving assembly 40 for driving the cathode body 30 to rotate about the central axis of the cylinder 10 is installed on the cylinder 10, and a scraper 50 is installed on the cathode body 30. The scraper 50 is made of an insulating material, such as rubber or silicone, and the scraper 50 is insulated and connected to the cathode body 30. The scraper 50 contacts the inner wall of the cylinder 10. When the cathode body 30 and the anode body 20 are performing water treatment, they can also scrape off the scale inside the cylinder 10 and reduce the scale production on the inner wall of the cylinder 10.

[0027] Reference Figure 1 and Figure 2 Specifically, the cylinder 10 includes a barrel and a barrel cover, the first driving member 44 is installed on the barrel cover, and the first driving assembly 40 includes a sun gear 41, a planetary gear 42 and a gear ring 43, and the planetary gear 42 is meshed with the adjacent sun gear 41 and the gear ring 43. The first driving assembly 40 also includes a driving member 44, and the driving member 44 is preferably a reduction motor 11, and the output shaft of the reduction motor 11 is fixedly connected with a driving wheel 45, and the driving wheel 45 is meshed with a driven wheel 46, and the driven wheel 46 is coaxially fixedly connected with the sun gear 41. The anode body 20 is a plate-shaped structure, and the power line of the anode body 20 passes through the barrel cover, the sun gear 41 and the driven wheel 46. The power line is coaxial with the sun gear 41 but is not fixedly connected with the rotating shaft of the sun gear 41. When the sun gear 41 rotates, the power line of the anode body 20 does not move. When the driving member 44 drives the sun gear 41 to rotate, the sun gear 41 drives the planetary gear 42 to revolve along the gear ring 43.

[0028] Reference Figure 1 and Figure 2 The cathode body 30 includes a conductive rod 31, which extends out of the cylinder 10 and passes through the planetary gear 42. The planetary gear 42 and the conductive rod 31 are insulated and connected. The planetary gear 42 moves the conductive rod 31 along the gear ring 43, so that the scraper 50 can move along the inner wall of the cylinder 10, thereby scraping off the scale on the inner wall of the cylinder 10.

[0029] Reference Figure 3 Since the conductive rod 31 rotates circumferentially along with the planetary gear 42, in order to provide power to the conductive rod 31, a guide ring 60 and a first conductive column 70 are installed outside the cylinder 10. The first conductive column 70 is electrically connected to the conductive rod 31, and the outer wall of the first conductive column 70 is covered with an insulating layer. The guide ring 60 is located above the gear ring 43, and the guide ring 60 and the outer wall of the cylinder 10 are connected by a support rod. The first conductive column 70 is made of a metal material with conductive properties, and has a columnar structure and is arranged vertically. A conductive block 71 is connected to the upper end of the first conductive column 70, and the guide ring 60 is made of an insulating material. A conductive strip 61 for conduction is installed inside the guide ring 60, and a power source (not shown in the figure) is connected to any position of the conductive strip 61.

[0030] The conductive strips 61 are distributed along the circumference of the guide ring 60, and the conductive blocks 71 and the conductive strips 61 are kept in contact to achieve the effect of electrification. The lower end of the first conductive column 70 is connected to the second conductive column 80, and the second conductive column 80 is made of a metal material with conductive properties. The second conductive column 80 is sleeved on the outer wall of the conductive rod 31, and the second conductive column 80 and the conductive rod 31 are coaxially arranged and electrically connected. The second conductive column 80 is coated with an insulating layer, and the insulating layer of the second conductive column 80 is in contact with the upper surface of the planetary gear 42. When the conductive rod 31 moves with the planetary gear 42, the first conductive column 70 and the second conductive column 80 also move with the planetary gear 42, and the guide ring 60 has a guiding and electrifying effect on the first conductive column 70, and the power supply passes through the first conductive column 70, the second conductive column 80 and the conductive rod 31 so that the cathode body 30 can be supplied with power.

[0031] Further, refer to Figure 1 The cathode body 30 further includes a cathode portion 32, and the conductive rod 31 is rotatably connected to the cathode portion 32. The cathode portion 32 is located inside the cylinder 10 and is electrically connected to the outer wall of the conductive rod 31, and the current finally flows into the cathode portion 32. If the conductive rod 31 is fixedly connected to the planetary gear 42, the cathode portion 32 remains stationary, and the scraper 50 is installed on the cathode portion 32. The scraper 50 always keeps in contact with the inner wall of the cylinder 10, and moves along the inner wall of the cylinder 10 as the planetary gear 42 moves.

[0032] If the scraper 50 is installed on the conductive rod 31, the planetary gear 42 also rotates when moving circumferentially. The conductive rod 31 drives the scraper 50 to intermittently contact the inner wall of the cylinder 10, which can also scrape off the scale on the inner wall of the cylinder 10 and stir the water in the cylinder 10, thereby appropriately accelerating the water treatment.

[0033] If the conductive rod 31 and the planetary gear 42 are connected in rotation, the conductive rod 31 and the planetary gear 42 remain relatively stationary. Whether the scraper 50 is mounted on the conductive rod 31 or the cathode portion 32, it remains in contact with the inner wall of the cylinder 10 and moves along the inner wall of the cylinder 10.

[0034] The side wall of the cylinder 10 is also connected with a water inlet and a drain outlet, and a sewage outlet 90 is provided in the middle of the bottom of the cylinder 10. When the scraper 50 moves circumferentially along the inner wall of the cylinder 10, it has a stirring effect on the water, increases the accumulation of scale in the middle of the bottom of the cylinder 10, and facilitates the discharge of scale.

[0035] The implementation principle of an electrochemical descaling device in Example 1 of the present application is: After the anode body 20 and the cathode body 30 are energized for reaction, the cathode body 30 rotates and revolves along with the planetary gear 42, and the cathode part 32 is dynamic in the cylinder 10, reducing the accumulation of scale on the cathode part 32. The cathode body 30 contacts the inner wall of the cylinder 10 with the scraper 50, and when the cathode body 30 moves along with the planetary gear 42, the power-carrying capacity of the cathode body 30 is not affected, and the scraper 50 can remove the generated scale in time. The scraper 50 can be intermittently in contact with the inner wall of the cylinder 10 or continuously in contact with the inner wall of the cylinder 10 according to the setting. If the scraper 50 intermittently contacts the inner wall of the cylinder 10, the cathode part 32 itself can also rotate, further reducing the accumulation of scale on the cathode part 32, reducing the accumulation of scale from the beginning, and the scraper 50 can also scrape off the scale in time, greatly reducing the difficulty of descaling.

[0036] Example 2 Reference Figure 4 and Figure 5 The difference between Example 2 and Example 1 is that the electrochemical descaling device further includes a reduction motor 11, which abuts against the insulating surface of the second conductive column 80, and the output shaft of the reduction motor 11 is insulated and fixedly connected to the conductive rod 31. The conductive rod 31 and the planetary gear 42 are in rotational connection. When the reduction motor 11 drives the conductive rod 31 to rotate, the rotation of the planetary gear 42 and the rotation of the conductive rod 31 do not interfere with each other, and the planetary gear 42 can only drive the conductive rod 31 to move circumferentially. The conductive rod 31 and the second conductive column 80 are also in rotational connection. The rotation of the conductive rod 31 cannot drive the second conductive column 80 to rotate, so that the second conductive column 80 and the first conductive column 70 maintain a stable connection relationship.

[0037] Reference Figure 5The conductive rod 31 is rotatably connected to the cathode part 32. The cathode part 32 is a hollow cylindrical structure with an opening at the lower end. The conductive rod 31 passes through the upper end surface of the cathode part 32. The conductive rod 31 and the cathode part 32 are coaxial. The conductive rod 31 is rotatably connected to a support ring 33. The support ring 33 contacts the upper end surface of the cathode part 32 and plays a supporting role. The conductive rod 31 and the cathode part 32 are electrically connected. The power supply of the conductive rod 31 is passed into the cathode part 32. The cathode part 32 participates in water treatment. The inner and outer peripheral walls of the cathode part 32 may adhere to scale.

[0038] The conductive column has a conductive segment 36 and an insulating segment 37 . The conductive segment 36 and the insulating segment 37 are plugged and fixed. The conductive segment 36 and the cathode part 32 are rotatably connected. The insulating segment 37 is located in the cavity of the cathode part 32 and has a distance from the inner wall of the cathode part 32 .

[0039] Reference Figure 5 The insulating section 37 of the conductive column is rotatably connected to a mounting ring 34, which is located below the cathode portion 32. Two scraper rods 35 are mounted on the mounting ring 34, one scraper rod 35 contacts the inner wall of the cathode portion 32, and the other scraper rod 35 contacts the outer wall of the cathode portion 32. When the reduction motor 11 drives the conductive rod 31 to rotate, the conductive rod 31 rotates, while the cathode portion 32 and the mounting ring 34 remain stationary.

[0040] Reference Figure 5 A first connecting rod 38 is fixedly connected to the inner wall of the cathode part 32, and a second connecting rod 39 is fixedly connected to the outer wall of the insulating section 37 of the conductive rod 31. The first connecting rod 38 is inserted into the second connecting rod 39. During installation, the first connecting rod 38 is first inserted into the second connecting rod 39, and then the second connecting rod 39 is fixedly installed on the insulating section 37 of the conductive rod 31, so that when the conductive rod 31 rotates, it can drive the cathode part 32 to rotate.

[0041] Reference Figure 5 A cross bar is fixed at the lower end of the insulating section 37 of the conductive rod 31, and a scraper 50 is fixedly installed on the end of the cross bar away from the conductive rod 31. A gap is left between the scraper 50 and the cathode portion 32, and the scraper 50 contacts the inner wall of the cylinder 10. The scraper 50 can rotate along with the rotation of the conductive rod 31, and the scraper 50 contacts the inner wall of the cylinder 10 intermittently.

[0042] The implementation principle of an electrochemical descaling device in Example 2 of the present application is: When the sun gear 41 moves with the planetary gear 42, the motor on the planetary gear 42 can also drive the conductive rod 31 to rotate. The conductive rod 31 can not only supply power to the cathode part 32 but also drive the cathode part 32 to rotate, thereby accelerating the rotation speed of the cathode part 32 and further reducing the adhesion of scale on the cathode part 32. The scraper 50 can also rotate with the conductive column to intermittently scrape off the dirt on the inner wall of the cylinder 10, reduce the adhesion of scale, and scrape off scale, thereby effectively reducing the difficulty of descaling.

[0043] Example 3 Example 3 discloses an electrochemical-based descaling method.

[0044] A descaling method based on electrochemistry, the anode body 20 and the cathode body are first powered on, the driving member 44 is turned on, the sun gear 41 moves circumferentially with the planetary gear 42, the planetary gear 42 rotates and revolves, the cathode body 30 moves with the rotation of the planetary gear 42, and the scraper 50 contacts the inner wall of the cylinder 10 with the movement of the cathode body 30.

[0045] Furthermore, the reduction motor 11 can drive the conductive rod 31 to rotate, so that the cathode part 32 rotates along with the conductive rod 31, and the conductive rod 31 drives the cathode part 32 to rotate, increasing the number of rotations of the cathode part 32, and during the rotation process, the scraper rod 35 can scrape off the scale on the cathode part 32, and the scraper 50 scrapes off the scale on the inner wall of the cylinder 10, thereby reducing scale accumulation from the source and reducing the difficulty of cleaning scale.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electrochemical descaling device, comprising a cylinder (10) and an anode body (20) and a cathode body (30) installed in the cylinder (10), wherein the anode body (20) and the cathode body (30) are respectively connected to a power source, characterized in that: The cylinder (10) is mounted with a first driving assembly (40) for driving the cathode body (30) to rotate. The first driving assembly (40) comprises a sun gear (41), a planetary gear (42) and a gear ring (43). The planetary gear (42) is meshed with the adjacent sun gear (41) and the gear ring (43). The cathode body (30) comprises a conductive rod (31). The conductive rod (31) passes through the planetary gear (42). The planetary gear (42) and the conductive rod (31) are insulated. The first driving assembly (40) also comprises a conductive rod (31) for driving the cathode body (30). The sun gear (41) is driven by a driving member (44) for rotating; a scraper (50) is mounted on the cathode body (30), and the scraper (50) is in contact with the inner wall of the cylinder (10); a guide ring (60) and a first conductive column (70) are mounted outside the cylinder (10); a conductive bar (61) is mounted inside the guide ring (60); one end of the first conductive column (70) extends into the guide ring (60) and maintains contact with the conductive bar (61); the conductive bar (61) is connected to a power source; and the first conductive column (70) is electrically connected to the conductive rod (31).

2. The electrochemical descaling device according to claim 1, characterized in that: The cathode body (30) further comprises a cathode portion (32), and the conductive rod (31) and the cathode portion (32) are rotatably connected.

3. The electrochemical descaling device according to claim 2, characterized in that: The scraper (50) is mounted on the cathode portion (32).

4. The electrochemical descaling device according to claim 2, characterized in that: It also includes a reduction motor (11), the output shaft of the reduction motor (11) is insulated from the conductive rod (31), the conductive rod (31) is rotatably connected to a second conductive column (80), and one end of the first conductive column (70) away from the guide ring (60) is electrically connected to the second conductive column (80).

5. The electrochemical descaling device according to claim 4, characterized in that: The cathode portion (32) is a hollow cylindrical (10) structure with an open lower end, and one end of the conductive rod (31) extends into the cathode portion (32).

6. The electrochemical descaling device according to claim 5, characterized in that: The conductive rod (31) is rotatably connected to a mounting ring (34), the mounting ring (34) is insulated, the mounting ring (34) is located below the cathode portion (32), and the mounting ring (34) is mounted with two scraper rods (35), one of the scraper rods (35) is in contact with the inner wall of the cathode portion (32), and the other of the scraper rods (35) is in contact with the outer wall of the cathode portion (32).

7. The electrochemical descaling device according to claim 6, characterized in that: The scraper (50) is mounted on the conductive rod (31).

8. An electrochemical descaling method, according to an electrochemical descaling device according to any one of claims 1 to 7, characterized in that: The anode body (20) and the cathode body are first powered on, and the driving member (44) is turned on. The sun gear (41) moves the planetary gear (42) in a circumferential direction, and the planetary gear (42) rotates and revolves. The cathode body (30) moves along with the rotation of the planetary gear (42), and the scraper (50) contacts the inner wall of the cylinder (10) along with the movement of the cathode body (30).

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