An electrochemical-based scale removal device and method

Abstract

The application relates to the technical field of electrochemical water treatment, and discloses an electrochemical descaling device and a descaling method, the electrochemical descaling device comprises a cylinder, an anode body and a cathode body installed in the cylinder, the anode body and the cathode body are respectively connected with a power supply, a first driving assembly for driving the cathode body to rotate is installed on the cylinder, the first driving assembly comprises a sun gear, a planetary gear and a gear ring, the planetary gear is engaged with the adjacent sun gear and gear ring, the cathode body comprises a conductive rod, the conductive rod penetrates through the planetary gear, the planetary gear and the conductive rod are insulated, the first driving assembly further comprises a driving piece for driving the sun gear to rotate, a scraper is installed on the cathode body, and the scraper is in contact with the inner wall of the cylinder. The application can reduce the descaling difficulty.

Description

TECHNICAL FIELD

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

[0002] The chemical water treatment system has relatively simple equipment, small floor area, and low operation and maintenance cost. The reaction process of the electrochemical water treatment is generally carried out at normal temperature and pressure, without the need for other special conditions, and has wide application prospects and development potential.

[0003] The current electrochemical descaling device includes a cylinder and a cathode plate and a negative electrode 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 water can cause scaling on the cylinder wall surface, and the cathode plate is also prone to scaling. Generally, artificial scraping or a scraper is needed to scrape back and forth.

[0004] In view of the related art, scaling is removed after scaling has been formed, and the difficulty of scaling removal is high. SUMMARY

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

[0006] In a first aspect, the present application provides an electrochemical descaling device, which adopts the following technical solution:

[0007] An electrochemical descaling device includes a cylinder and an anode body and a cathode body installed in the cylinder. The anode body and the cathode body are respectively connected with a power supply. A first driving assembly for driving the cathode body to rotate is installed on the cylinder. The first driving assembly includes a sun gear, a planet gear, and a gear ring. The planet gear is engaged with the adjacent sun gear and gear ring. The cathode body includes a conductive rod, which penetrates the planet gear. The planet gear and the conductive rod are insulated. The first driving assembly further includes a driving member for driving the sun gear to rotate. A scraper is installed on the cathode body and contacts 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 with a power supply. The first conductive column and the conductive rod are electrically connected.

[0008] By adopting the technical scheme, the anode body and the 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), which enables the cathode body to rotate uniformly and orbit in the cylinder, and the scraper is in contact with the scale layer on the inner wall of the cylinder, thereby improving the efficiency and uniformity of electrochemical descaling and ensuring the cleanliness of the inner wall of the cylinder.

[0009] Optionally, the cathode body further comprises a cathode part, and the conductive rod is rotationally connected to the cathode part.

[0010] By adopting the technical scheme, if the conductive rod is fixedly connected to the planetary gear, the cathode part can remain stationary.

[0011] Optionally, the scraper is mounted on the cathode part.

[0012] By adopting the technical scheme, the cathode part remains stationary, and the scraper can be in contact with the inner wall of the cylinder at all times.

[0013] Optionally, the device further comprises a reduction motor, the output shaft of the reduction motor is insulatedly connected to the conductive rod, the conductive rod is rotationally connected to a second conductive column, and the first conductive column is electrically connected to the second conductive column.

[0014] By adopting the technical scheme, the conductive rod rotates with the planetary gear, the reduction motor can drive the conductive rod to rotate, the rotation speed and rotation number of the conductive rod can be changed, the second conductive column rotationally connected to the conductive rod is electrically connected to the first conductive column, and the cathode body is always connected to the power supply during rotation. This design improves the reliability and stability of the device.

[0015] Optionally, the cathode part is a hollow cylindrical structure with an open lower end, and the upper end face of the cathode part is rotationally connected to the conductive rod.

[0016] By adopting the technical scheme, the structure of the cathode part is conducive to the discharge of gas and liquid generated by the electrochemical reaction. The hollow cylindrical structure with an open lower end enables the reaction products to flow out smoothly, avoiding 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.

[0017] Optionally, the conductive rod is rotationally connected to a mounting ring, the mounting ring is located below the cathode part, two scrapers are mounted on the mounting ring, one of the scrapers is in contact with the inner wall of the cathode part, and the other scraper is in contact with the outer wall of the cathode part.

[0018] Through the above technical scheme, the close contact of the scraping rod and the cathode part avoids the accumulation of the scale layer on the surface of the cathode part, and prolongs the service life of the device.

[0019] Optionally, the scraper is mounted on the conductive rod.

[0020] Through the above technical scheme, the scraper can move with the rotation of the conductive rod and contact the scale layer on the inner wall of the cylinder.

[0021] In a second aspect, the application provides an electrochemical-based scale removal method, which adopts the following technical scheme:

[0022] An electrochemical-based scale removal method, according to the above electrochemical-based scale removal device, the anode body and the cathode body are first connected to the power supply, the driving member is turned on, the sun gear moves circumferentially with the planetary gear, the planetary gear 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.

[0023] Through the above technical scheme, the sun gear moves circumferentially with the planetary gear and rotates and revolves by being first connected to the power supply and turning on the driving member. 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 scale removal and physical scraping, improves the scale removal efficiency and effect, and at the same time, the implementation process of the method is simple and easy to understand, and the operation is convenient, easy to promote and apply in industry.

[0024] In summary, the application includes at least one of the following beneficial effects:

[0025] 1. Through the rotation of the cathode body and the scraping effect of the scraper, it is ensured that the scale layer on the inner wall of the cylinder can be cleaned in time, and the self-rotation of the cathode body can also reduce the accumulation of scale;

[0026] 2. The scraping rod can also contact the inner wall and the outer wall of the cathode part with the conductive rod, avoiding the accumulation of the scale layer on the surface of the cathode part, and prolonging the service life of the device. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the internal structure sectional view of embodiment 1 of the application;

[0028] Figure 2 is the external overall structure schematic diagram of embodiment 1 of the application;

[0029] Figure 3 is the A enlarged schematic diagram of Figure 1 ;

[0030] Figure 4 is the external overall structure schematic diagram of embodiment 2 of the application;

[0031] Figure 5 is an internal structural sectional view of Embodiment 2 of the present application.

[0032] Reference sign explanation: 10, cylinder; 20, anode body; 30, cathode body; 31, conductive rod; 32, cathode part; 33, support ring; 34, mounting ring; 35, scraping rod; 36, conductive section; 37, insulating section; 38, first connecting rod; 39, second connecting rod; 40, first driving assembly; 41, sun gear; 42, planetary gear; 43, gear ring; 44, driving piece; 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, blowdown port 11, speed reducer motor. DETAILED DESCRIPTION

[0033] The following will be described in detail below with reference to the accompanying drawings Figures 1-5 The present application is further described in detail.

[0034] Embodiments of the present application disclose a scale removal device based on electrochemistry. Referring to Figure 1 A scale removal device based on electrochemistry includes a cylinder 10 and an anode body 20 and a cathode body 30 mounted in the cylinder 10, the anode body 20 and the cathode body 30 are respectively connected with a power supply, the embodiments of the present application take stainless steel electrode as a substrate, and water treatment is carried out after the cathode body 30 and the anode body 20 are powered on, which is the prior art, and the present application will not be described in detail. The first driving assembly 40 for driving the cathode body 30 to rotate about the central axis of the cylinder 10 is mounted on the cylinder 10, the scraper 50 is mounted on the cathode body 30, the scraper 50 is made of insulating material, such as rubber or silicone, and the scraper 50 and the cathode body 30 are insulatively connected. The scraper 50 contacts the inner wall of the cylinder 10, and the cathode body 30 and the anode body 20 can also scrape off the scale inside the cylinder 10 when water treatment is carried out, thereby reducing the scale production on the inner wall of the cylinder 10.

[0035] Referring to Figure 1 and Figure 2, specifically, the cylinder 10 includes a barrel and a barrel cover, the first drive member 44 is installed on the barrel cover, the first drive assembly 40 includes a sun gear 41, a planetary gear 42 and a gear ring 43, the planetary gear 42 and the adjacent sun gear 41, gear ring 43 meshing. The first drive assembly 40 further comprises a driving member 44, the driving member 44 is preferably a speed reducer motor 11, the output shaft of the speed reducer motor 11 is fixedly connected with a driving wheel 45, the driving wheel 45 is engaged with a driven wheel 46, the driven wheel 46 and the sun gear 41 are coaxially fixedly connected. The anode body 20 is in the form of a plate, the power supply line of the anode body 20 passes through the barrel cover, the sun gear 41 and the driven wheel 46, the power supply line and the sun gear 41 are coaxial but not fixedly connected with the sun gear 41, the power supply line of the anode body 20 is not moved when the sun gear 41 rotates. 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.

[0036] Referring to Figure 1 and Figure 2 , the cathode body 30 includes a conductive rod 31, the conductive rod 31 extends out of the cylinder 10 and penetrates the planetary gear 42, the planetary gear 42 and the conductive rod 31 are insulated and connected. The planetary gear 42 moves along the gear ring 43 with the conductive rod 31, so that the scraper 50 can move along the inner wall of the cylinder 10, thereby removing the scale on the inner wall of the cylinder 10.

[0037] Referring to Figure 3 , since the conductive rod 31 rotates 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 and the conductive rod 31 are electrically connected, and the first conductive column 70 is coated 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 with a support rod. The first conductive column 70 is made of metal material with conductive property, and is in the form of a column and vertically arranged. The upper end of the first conductive column 70 is connected with a conductive block 71, and the guide ring 60 is made of insulating material. The guide ring 60 is installed with a conductive strip 61 for conduction, and the conductive strip 61 is connected with a power supply (not shown in the figure) at any position.

[0038] The conductive strip 61 is distributed along the circumference of the guide ring 60, and the conductive block 71 and the conductive strip 61 are kept in contact to achieve the effect of power supply. The first conductive column 70 is connected with the second conductive column 80 at the lower end, and the second conductive column 80 is made of metal material with conductive performance. 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 covered 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. The guide ring 60 has the effect of guiding and power supply on the first conductive column 70. The power supply passes through the first conductive column 70, the second conductive column 80 and the conductive rod 31 to enable the cathode body 30 to be powered.

[0039] Further, referring to Figure 1 , the cathode body 30 further comprises a cathode part 32, and the conductive rod 31 is rotationally connected with the cathode part 32. The cathode part 32 is located in the cylinder 10 and is electrically connected with the outer wall of the conductive rod 31, and the electric current is finally supplied to the cathode part 32. If the conductive rod 31 is fixedly connected with the planetary gear 42, the cathode part 32 remains stationary, and the scraper 50 is installed on the cathode part 32. The scraper 50 is always in contact with the inner wall of the cylinder 10 and moves along the inner wall of the cylinder 10 while moving with the planetary gear 42.

[0040] If the scraper 50 is installed on the conductive rod 31, the planetary gear 42 rotates when moving circumferentially, and the conductive rod 31 drives the scraper 50 to intermittently contact the inner wall of the cylinder 10, which can also have the effect of scraping off the scale on the inner wall of the cylinder 10 and stirring the water in the cylinder 10, thereby appropriately accelerating the water treatment.

[0041] If the conductive rod 31 is rotationally connected with the planetary gear 42, the conductive rod 31 and the planetary gear 42 remain in a relatively stationary state. The scraper 50 is installed on the conductive rod 31 or the cathode part 32, and both remain in contact with the inner wall of the cylinder 10 and move along the inner wall of the cylinder 10.

[0042] The side wall of the cylinder 10 is also connected with a water inlet and a drain, and a drain opening 90 is formed in the middle of the bottom of the cylinder 10. The scraper 50 has a stirring effect on the water when moving circumferentially along the inner wall of the cylinder 10, which increases the accumulation of scale in the middle of the bottom of the cylinder 10, facilitating the discharge of the scale.

[0043] The implementation principle of the scale removal device based on electrochemistry in Embodiment 1 of the present application is as follows:

[0044] After the anode body 20 and the cathode body 30 are electrified and react, the cathode body 30 rotates and revolves with the planetary gear 42, the cathode part 32 is dynamic in the cylinder 10, the situation that the scale is accumulated on the cathode part 32 is reduced, the cathode body 30 contacts the inner wall of the cylinder 10 with the scraper 50, and the electrification capacity of the cathode body 30 is not affected when the cathode body 30 moves with the planetary gear 42, the scale can be removed in time by the scraper 50, the scraper 50 can be in intermittent contact with the inner wall of the cylinder 10 or in continuous contact with the inner wall of the cylinder 10 according to the setting, if the scraper 50 is in intermittent contact with the inner wall of the cylinder 10, the cathode part 32 can also rotate by itself, which further reduces the scale accumulation on the cathode part 32, reduces the scale accumulation from the beginning, and the scale can be removed in time by the scraper 50, which greatly reduces the difficulty of scale removal.

[0045] Embodiment 2

[0046] With reference to Figure 4 and Figure 5 , the difference between embodiment 2 and embodiment 1 is that the electrochemical scale removal device further comprises a speed reducer 11 abutting on the insulating surface of the second conductive column 80, and the output shaft of the speed reducer 11 is insulated and fixedly connected with the conductive rod 31. The conductive rod 31 and the planetary gear 42 are rotationally connected, and when the speed reducer 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 rotationally connected, and 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.

[0047] With reference to Figure 5 , the conductive rod 31 and the cathode part 32 are rotationally connected, the cathode part 32 is a hollow cylinder 10-shaped structure with an open lower end, the conductive rod 31 penetrates through the upper end surface of the cathode part 32, and the conductive rod 31 and the cathode part 32 are coaxial. The conductive rod 31 is rotationally connected with 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 connected to the cathode part 32, the cathode part 32 participates in water treatment, and the inner and outer circumferential walls of the cathode part 32 have the possibility of adhering scale.

[0048] The conductive column has a conductive section 36 and an insulating section 37, the conductive section 36 and the insulating section 37 are inserted and fixed, the conductive section 36 is rotationally connected with the cathode part 32, and the insulating section 37 is located in the cavity of the cathode part 32 and has a spacing from the inner wall of the cathode part 32.

[0049] With reference to Figure 5, the insulating section 37 of the conductive column is rotationally connected with a mounting ring 34, the mounting ring 34 is located below the cathode part 32, two scraping rods 35 are mounted on the mounting ring 34, one scraping rod 35 is in contact with the inner wall of the cathode part 32, and the other scraping rod 35 is in contact with the outer wall of the cathode part 32. When the speed reducer 11 drives the conductive rod 31 to rotate, the conductive rod 31 rotates, and the cathode part 32 and the mounting ring 34 remain stationary.

[0050] With reference to Figure 5 , the first connecting rod 38 is fixedly connected to the inner wall of the cathode part 32, the 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, and the first connecting rod 38 is inserted into the second connecting rod 39 during installation, and then the second connecting rod 39 is fixedly installed on the insulating section 37 of the conductive rod 31, so that the conductive rod 31 can drive the cathode part 32 to rotate when the conductive rod 31 rotates.

[0051] With reference to Figure 5 , the insulating section 37 of the conductive rod 31 is fixedly connected with a cross rod at the lower end, the scraping plate 50 is fixedly installed on the end of the cross rod away from the conductive rod 31, the scraping plate 50 is spaced apart from the cathode part 32, and the scraping plate 50 is in contact with the inner wall of the cylinder 10. The scraping plate 50 can rotate with the rotation of the conductive rod 31, and the scraping plate 50 intermittently contacts the inner wall of the cylinder 10.

[0052] The implementation principle of the electrochemical-based descaling device in Embodiment 2 is as follows:

[0053] 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 deliver power to the cathode part 32 but also drive the cathode part 32 to rotate, thereby increasing the rotation speed of the cathode part 32 and further reducing the adhesion of scale on the cathode part 32, and the scraping plate 50 can also rotate with the conductive column, intermittently scraping the dirt on the inner wall of the cylinder 10, reducing the adhesion of scale, and also scraping the scale, effectively reducing the difficulty of descaling.

[0054] Embodiment 3

[0055] Embodiment 3 discloses an electrochemical-based descaling method.

[0056] An electrochemical-based descaling method, the anode body 20 and the cathode body are first connected to a power source, 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 scraping plate 50 moves with the cathode body 30 and contacts the inner wall of the cylinder 10.

[0057] Further, the deceleration motor 11 can drive the conductive rod 31 to rotate, so that the cathode part 32 rotates with the conductive rod 31, the conductive rod 31 drives the cathode part 32 to rotate, the number of rotation of the cathode part 32 is increased, and in the process of rotation, the scraper rod 35 can scrape off the water scale on the cathode part 32, and the scraper plate 50 scrapes off the water scale on the inner wall of the cylinder 10, so that the accumulation of water scale is reduced from the source, and the difficulty of water scale cleaning is reduced.

[0058] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An electrochemical-based descaling device comprising 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) being connected with a power source, respectively, characterized in that: The cylinder (10) is provided 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 in mesh with the sun gear (41) and the gear ring (43), the cathode body (30) comprises an electrically conductive rod (31), the electrically conductive rod (31) penetrates the planetary gear (42), the planetary gear (42) and the electrically conductive rod (31) are insulated, the first driving assembly (40) further comprises a driving member (44) for driving the sun gear (41) to rotate, the cathode body (30) is provided with a scraper (50), the scraper (50) is in contact with the inner wall of the cylinder (10); the cylinder (10) is externally provided with a guide ring (60) and a first electrically conductive column (70), the guide ring (60) is internally provided with an electrically conductive strip (61), one end of the first electrically conductive column (70) extends into the guide ring (60) and keeps in contact with the electrically conductive strip (61), the electrically conductive strip (61) is connected with a power supply, the first electrically conductive column (70) and the electrically conductive rod (31) are electrically connected.

2. An electrochemically-based scale removal device according to claim 1, wherein: The cathode body (30) further comprises a cathode part (32), the electrically conductive rod (31) and the cathode part (32) are rotationally connected.

3. An electrochemically-based scale removal device according to claim 2, wherein: The scraper (50) is mounted on the cathode part (32).

4. An electrochemically-based scale removal device according to claim 2, wherein: Further comprising a reduction motor (11), the output shaft of the reduction motor (11) is insulatedly connected with the electrically conductive rod (31), the electrically conductive rod (31) is rotationally connected with a second electrically conductive column (80), one end of the first electrically conductive column (70) away from the guide ring (60) is electrically connected with the second electrically conductive column (80).

5. An electrochemically-based scale removal device according to claim 4, wherein: The cathode part (32) is a hollow cylinder (10) structure with an open lower end, one end of the electrically conductive rod (31) extends into the cathode part (32).

6. An electrochemically-based scale removal device according to claim 5, wherein: The electrically conductive rod (31) is rotationally connected with a mounting ring (34), the mounting ring (34) is insulatedly arranged, the mounting ring (34) is located below the cathode part (32), the mounting ring (34) is provided with two scrapers (35), one of the scrapers (35) is in contact with the inner wall of the cathode part (32), and the other scraper (35) is in contact with the outer wall of the cathode part (32).

7. An electrochemically-based scale removal device according to claim 6, wherein: The scraper (50) is mounted on the electrically conductive rod (31).

8. An electrochemical based scale removal method, the electrochemical based scale removal device according to any one of claims 1-7, characterized by: The anode body (20) and the negative electrode body are first connected with a power supply, the driving member (44) is started, the sun gear (41) moves in the circumferential direction with the planetary gear (42), 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) moves along with the cathode body (30) and is in contact with the inner wall of the cylinder (10).

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