A boiler circulating water treatment device and process

Abstract

The present application provides a boiler circulating water treatment device and process, belonging to the field of water treatment technology, comprising a treatment box and an anode rod, a cathode rod and an injection assembly arranged therein, wherein a water outlet pipe is connected to the box wall of the treatment box; the injection assembly comprises a receiving plate and a supporting ring which are rotatably connected to the left and right inner walls of the treatment box respectively, a plurality of injection pipes are arranged in a circumferential array between the receiving plate and the supporting ring, and a water supply unit is arranged between the supporting ring and the treatment box; a plurality of guide blades are rotatably sleeved on the outside of the injection pipes, a guide groove is opened on the inner wall of the treatment box, a plurality of guide columns are slidably connected inside the guide groove; a driving member is arranged on the side wall of the treatment box; the present application can reduce the probability of surface wear of the cathode rod, and can also improve the fluidity of the boiler circulating water inside the treatment box to a certain extent.

Description

Technical Field

[0001] The present application relates to the field of water treatment technology, and in particular to a boiler circulating water treatment device and process. Background Art

[0002] Boiler circulating water refers to the water that circulates in the boiler, and it plays an important role in the heat exchange of the boiler. After being heated in the boiler, the water transfers the heat to the steam generator or heat exchanger, and then is cooled and re-enters the boiler to continue circulating. The main purpose of boiler circulating water treatment is to maintain water quality standards and avoid water quality deterioration due to scaling, corrosion and other problems during the circulation process, so as to ensure the long-term stability and efficient operation of the boiler and its circulation system.

[0003] Existing boiler circulating water treatment technologies mainly include chemical treatment and electrochemical treatment. Among them, electrochemical treatment is to achieve water electrolysis by installing positive and negative electrodes in the boiler circulating water and applying current. In this method, the chemical reaction produced during the electrolysis process will cause impurities in the water to gather on a specific cathode and form scale. When scale accumulates excessively on the cathode surface, the efficiency of current transfer between the positive and negative electrodes will be hindered, thereby affecting the effect of the entire electrolysis treatment system. Therefore, the scale on the cathode surface needs to be cleaned in time during the electrolysis process.

[0004] Referring to the Chinese patent document with announcement number CN116621287B and announcement date September 22, 2023, named "Self-cleaning device for electrode rods for sewage electrolysis purification treatment", the scale on the electrode rod can be cleaned by scraping the cleaning sleeve, thereby preventing the scale from adhering to the electrode rod, keeping the voltage between the electrodes stable, and thus improving the effect of sewage electrolysis treatment.

[0005] Referring to the above technical solution, when the scale on the surface of the cathode rod is cleaned by scraping for a long time, the cathode rod may suffer from surface wear, which in turn affects the service life of the cathode rod. In addition, during the electrolysis process, some areas in the treatment box are prone to form dead water areas with slow flow rates, and the current distribution uniformity in this area is poor, which may affect the final effect of the electrolysis treatment. Summary of the invention

[0006] In view of this, the present application provides a boiler circulating water treatment device and process, which are mainly used to solve the problem that the cathode rod may be damaged on the surface due to scraping and descaling, and dead water areas are easily formed in the treatment box.

[0007] In order to solve the above technical problems, the present application provides a boiler circulating water treatment device and process.

[0008] In the first aspect, the present application provides a boiler circulating water treatment device, including a treatment box and an anode rod, a cathode rod and an injection assembly arranged therein, the anode rod is located directly above the cathode rod, and a water outlet pipe is connected to the wall of the treatment box; the injection assembly includes a receiving plate and a supporting ring rotatably connected to the left and right inner walls of the treatment box respectively, a plurality of injection pipes are arranged in a circumferential array between the receiving plate and the supporting ring, the cathode rod is located between the plurality of injection pipes, and a water supply unit for passing boiler circulating water into the injection pipe is arranged between the supporting ring and the treatment box; a plurality of guide blades are rotatably sleeved on the outside of the injection pipe, a guide groove is opened on the inner wall of the treatment box, the guide groove is arranged in a cam shape, and the distal end of the guide groove is arranged downward, a plurality of guide columns corresponding to the injection pipes are slidably connected inside the guide groove, and the guide column can penetrate all the guide blades on the injection pipe corresponding to itself; a driving member is arranged on the side wall of the treatment box to drive the receiving plate to rotate.

[0009] By adopting the above technical solution, the boiler circulating water is sent into the treatment box in the form of jet water and impacts the surface of the cathode rod so as to remove the scale accumulated on the surface of the cathode rod. This can reduce the probability of surface wear of the cathode rod and can also improve the fluidity of the boiler circulating water to a certain extent, reducing the possibility of dead water area formation.

[0010] Optionally, the treatment box is vertically arranged in an elliptical shape, with the anode rod located at the top of the treatment box, the cathode rod located at the bottom of the treatment box, and the water outlet pipe connected to the top box wall of the treatment box.

[0011] By adopting the above technical solution, the removed scale can be gathered at the bottom of the treatment box, increasing the distance between the scale and the outlet pipe to prevent the scale from re-entering the circulation process of the boiler circulating water through the outlet pipe.

[0012] Optionally, the water supply unit includes a transition ring rotatably mounted on the outside of the supporting ring, the transition ring is fixedly connected to a water inlet pipe that can penetrate the inner wall of the treatment box, and the outer arc surface of the supporting ring is provided with an annular groove that can communicate with the injection pipe and the water inlet pipe.

[0013] By adopting the above technical solution, after the boiler circulating water enters the annular groove from the water inlet pipe, it can then enter multiple injection pipes to complete the water supply work.

[0014] Optionally, the driving member includes a reduction motor arranged on the side wall of the processing box, and the output shaft of the reduction motor can drive the receiving plate to rotate by belt transmission.

[0015] Optionally, a spoiler assembly is provided between the receiving plate and the supporting ring to improve the fluidity of the boiler circulating water in the area where the cathode rod is located.

[0016] Optionally, the spoiler assembly includes a spoiler frame axially slidably connected between the receiving plate and the supporting ring through an elastic member, the cathode rod is located inside the spoiler frame, and the inner wall of the processing box is provided with an end face cam capable of abutting the spoiler frame.

[0017] By adopting the above technical solution, the boiler circulating water is disturbed by the axially reciprocating spoiler frame, thereby improving the fluidity of the boiler circulating water in the axial direction.

[0018] Optionally, the spoiler frame is composed of a plurality of spoiler rings and connecting rods, and the outer edge surface of each spoiler ring is inclined from the inside to the outside in a direction close to the central axis of the spoiler ring.

[0019] By adopting the above technical solution, the ejected boiler circulating water can be ejected into a wider range after being blocked by the spoiler ring, thereby improving the ejection descaling effect of the cathode rod.

[0020] In a second aspect, the present application provides a boiler circulating water treatment process, which is applied to a boiler circulating water treatment device described in the first aspect, and the treatment process includes:

[0021] S1, the boiler circulating water is passed into the injection pipe through the water supply unit, and then the injection pipe impacts the boiler circulating water on the surface of the cathode rod in the form of a jet;

[0022] S2, as the boiler circulating water continues to flow in, when the anode rod and the cathode rod are completely submerged in the boiler circulating water, the electrolysis work is carried out by applying current in the boiler circulating water through the cooperation of the anode rod and the cathode rod;

[0023] S3, the receiving plate, the injection pipe and the supporting ring are rotated together by the cooperation of the driving member, so that the scale on the surface of the cathode rod is removed by the injection action of the boiler circulating water during the electrolysis process.

[0024] By adopting the above technical solution, the boiler circulating water is sent into the treatment box in the form of jet water and impacts the surface of the cathode rod, which can remove the scale accumulated on the surface of the cathode rod, has the effect of automatically cleaning the cathode rod, and reduces the probability of surface wear of the cathode rod.

[0025] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Compared with the scraping descaling method, the water injection method is used to make the boiler circulating water directly impact the surface of the cathode rod. On the one hand, it can remove the scale accumulated on the surface of the cathode rod and reduce the possibility of surface wear of the cathode rod. On the other hand, it can reduce the accumulation of scale near the cathode rod, which is beneficial to the improvement of the cathode rod cleaning effect. It can also improve the fluidity of the boiler circulating water to a certain extent, reduce the possibility of dead water zone formation, and thus improve the final effect of the electrolysis treatment of the boiler circulating water.

[0027] 2. By setting the spoiler frame, the fluidity of the boiler circulating water in the axial direction can be improved in a spoiler manner, and the spray range of the boiler circulating water can also be increased, so as to improve the spray descaling effect of the cathode rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of a boiler circulating water treatment device for this application;

[0029] Figure 2 A cross-sectional view of a treatment box for this application;

[0030] Figure 3 This is a schematic diagram of the structure of the injection assembly of this application;

[0031] Figure 4 An exploded view of the jet assembly and spoiler assembly of this application;

[0032] Figure 5 An exploded view of the support ring and water supply unit for this application;

[0033] Figure 6 This is a schematic diagram of the structure of the guide groove and guide column of this application.

[0034] Explanation of the accompanying drawings: 1. treatment box; 11. anode rod; 12. cathode rod; 13. water outlet pipe; 2. injection assembly; 21. receiving plate; 22. supporting ring; 23. injection pipe; 24. water supply unit; 241. transition ring; 242. water inlet pipe; 243. annular groove; 3. guide blade; 31. guide groove; 32. guide column; 4. driving member; 41. reduction motor; 5. spoiler assembly; 51. elastic member; 52. spoiler frame; 521. spoiler ring; 522. connecting rod; 53. end face cam. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 6 , the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0036] In the first aspect, the present application provides a boiler circulating water treatment device, which adopts the following technical solution:

[0037] Reference Figure 1 and Figure 2This embodiment provides a boiler circulating water treatment device, including a treatment box 1, an anode rod 11, a cathode rod 12, an injection assembly 2 and a water outlet pipe 13. The treatment box 1 is vertically arranged in an elliptical shape, the anode rod 11 is installed on the top of the treatment box 1, the cathode rod 12 is installed on the bottom of the treatment box 1, and the water outlet pipe 13 is connected to the top box wall of the treatment box 1. The injection assembly 2 is arranged inside the treatment box 1, and the injection assembly 2 is used to pass the boiler circulating water into the treatment box 1.

[0038] Among them, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The injection assembly 2 includes a receiving plate 21, a supporting ring 22, an injection pipe 23 and a water supply unit 24. The receiving plate 21 and the supporting ring 22 are rotatably connected to the left and right inner walls of the treatment box 1 respectively, the injection pipes 23 are arranged in a circumferential array between the receiving plate 21 and the supporting ring 22, and the cathode rod 12 is located between the multiple injection pipes 23; the water supply unit 24 includes a transition ring 241, a water inlet pipe 242 and an annular groove 243, the transition ring 241 is rotatably sleeved on the outside of the supporting ring 22, the water inlet pipe 242 is fixedly connected to the transition ring 241, and the water inlet pipe 242 can penetrate the inner wall of the treatment box 1, the annular groove 243 is opened on the outer arc surface of the supporting ring 22, and the annular groove 243 can communicate with the injection pipe 23 and the water inlet pipe 242.

[0039] Among them, refer to Figure 2 and Figure 3 A driving member 4 for driving the receiving plate 21 to rotate is provided on the side wall of the processing box 1. The driving member 4 includes a reduction motor 41 provided on the side wall of the processing box 1. When the reduction motor 41 is running, the output shaft of the reduction motor 41 can drive the receiving plate 21 to rotate by belt transmission.

[0040] When carrying out boiler circulating water treatment work, the boiler circulating water is first introduced into the water inlet pipe 242, so that the boiler circulating water is transferred to the injection pipe 23 through the annular groove 243, and then the boiler circulating water is ejected from the inside of the injection pipe 23 and impacts the surface of the cathode rod 12, thereby transferring the boiler circulating water to the inside of the treatment box 1.

[0041] With the continuous introduction of boiler circulating water, until the anode rod 11 and the cathode rod 12 are completely submerged in the boiler circulating water, the anode rod 11 and the cathode rod 12 cooperate to apply current in the boiler circulating water to electrolyze the boiler circulating water; at the same time, the reduction motor 41 drives the receiving plate 21, the injection pipe 23 and the supporting ring 22 to rotate together, and the scale accumulated on the surface of the cathode rod 12 is removed by the injection impact of the subsequent boiler circulating water. Then, the scale will gather at the bottom of the treatment box 1 due to its own gravity. Compared with the scraping descaling method, it can not only reduce the probability of surface wear of the cathode rod 12, but also improve the fluidity of the boiler circulating water in the treatment box 1 to a certain extent, and reduce the possibility of dead water area formation.

[0042] Finally, the treated boiler circulating water will be discharged from the outlet pipe 13 in an overflow manner as the liquid level inside the treatment box 1 rises. When the slag discharge pipe connected to the bottom of the treatment box 1 is opened, the boiler circulating water remaining at the bottom of the treatment box 1 will be discharged from the slag discharge pipe together with the scale gathered at the bottom of the treatment box 1.

[0043] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 A flow guide component for providing flow guidance for boiler circulating water is provided between the injection pipe 23 and the treatment box 1, and the flow guide component includes a flow guide blade 3, a guide groove 31 and a guide column 32. The flow guide blade 3 is arranged in an array outside each injection pipe 23 in a rotating sleeve manner, and the guide groove 31 can be provided in two numbers, and the two guide grooves 31 are respectively opened on the inner wall of the treatment box 1 and the side wall of the transition ring 241, and a plurality of guide columns 32 corresponding to the injection pipe 23 are slidably connected between the two guide grooves 31, so as to provide stable support for the guide column 32, and the guide column 32 can penetrate all the flow guide blades 3 on the injection pipe 23 corresponding to itself; the guide groove 31 is arranged in a cam shape, and the distal end of the guide groove 31 is located on the side away from the anode rod 11. The distance between the guide column 32 and the sleeve end of the guide blade 3 is greater than the shortest distance between the sleeve end of the guide blade 3 and the proximal end of the guide groove 31, and the distance between the guide column 32 and the sleeve end of the guide blade 3 is less than or equal to the minimum distance between the sleeve end of the guide blade 3 and the distal end of the guide groove 31.

[0044] During the process of the receiving plate 21, the injection pipe 23 and the supporting ring 22 rotating together, the guide blade 3 will change position together with the injection pipe 23, and when the guide column 32 reaches the distal end of the guide groove 31, the guide blade 3 will flip to a vertical state with the injection pipe 23 as the rotation reference, which is beneficial to the falling of scale; conversely, when the guide column 32 reaches the proximal end of the guide groove 31, the guide blade 3 will rotate and contract in the direction close to the cathode rod 12 with the injection pipe 23 as the rotation reference, so as to press the nearby boiler circulating water toward the position of the cathode rod 12, further improve the fluidity of the boiler circulating water near the cathode rod 12, at this time, the boiler circulating water in the area near the cathode rod 12 that is already mixed with scale will be transferred downward with the water pressing action of the guide blade 3, and the boiler circulating water that is pressurized by the guide blade 3 and has not yet been mixed with scale will be transferred to the area near the cathode rod 12, thereby reducing the accumulation of scale near the cathode rod 12, which is beneficial to the improvement of the cleaning effect of the cathode rod 12.

[0045] Reference Figure 4 A spoiler assembly 5 for improving the fluidity of boiler circulating water in the area where the cathode rod 12 is located is arranged between the receiving plate 21 and the supporting ring 22, and the spoiler assembly 5 includes an elastic member 51, a spoiler frame 52 and an end face cam 53. The spoiler frame 52 is axially slidably connected between the receiving plate 21 and the supporting ring 22 through the elastic member 51, the spoiler frame 52 is located outside the cathode rod 12, the end face cam 53 is fixedly connected to the inner wall of the processing box 1, the end face cam 53 is located inside the supporting ring 22, and an avoidance hole for the cathode rod 12 to pass through is opened in the middle of the end face cam 53, and the concave and convex end face of the end face cam 53 can abut against the spoiler frame 52.

[0046] Among them, refer to Figure 4 The spoiler frame 52 is composed of a plurality of spoiler rings 521 and a connecting rod 522, and the outer edge surface of each spoiler ring 521 is inclined from the inside to the outside toward the direction close to its own central axis.

[0047] During the spraying and descaling process of the cathode rod 12, the spoiler frame 52 will rotate along with the receiving plate 21 and the supporting ring 22, thereby changing the contact point between the spoiler frame 52 and the end face cam 53. As the spoiler frame 52 continues to rotate, with the cooperation of the elastic member 51, the spoiler frame 52 can also perform axial reciprocating movement between the receiving plate 21 and the supporting ring 22, thereby improving the fluidity of the boiler circulating water in the axial direction in a spoiler manner; in addition, as the spoiler frame 52 moves axially back and forth, when the spray hole on the spray pipe 23 is aligned with the inclined edge of the spoiler ring 521, the boiler circulating water sprayed from the spray pipe 23 will be sprayed along the inclined edge of the spoiler ring 521 to a larger range, thereby further improving the spraying and descaling effect of the cathode rod 12.

[0048] The implementation principle of a boiler circulating water treatment device in the embodiment of the present application is:

[0049] When carrying out boiler circulating water treatment work, the boiler circulating water is first introduced into the water inlet pipe 242, so that the boiler circulating water is transferred to the injection pipe 23 through the annular groove 243, and then the boiler circulating water is ejected from the inside of the injection pipe 23 and impacts the surface of the cathode rod 12, thereby transferring the boiler circulating water to the inside of the treatment box 1.

[0050] With the continuous introduction of boiler circulating water, until the anode rod 11 and the cathode rod 12 are completely submerged in the boiler circulating water, the anode rod 11 and the cathode rod 12 cooperate to apply current in the boiler circulating water to electrolyze the boiler circulating water; at the same time, the reduction motor 41 drives the receiving plate 21, the injection pipe 23 and the supporting ring 22 to rotate together, and the scale accumulated on the surface of the cathode rod 12 is removed by the injection impact of the subsequent boiler circulating water. Then, the scale will gather at the bottom of the treatment box 1 due to its own gravity. Compared with the scraping descaling method, it can not only reduce the probability of surface wear of the cathode rod 12, but also improve the fluidity of the boiler circulating water in the treatment box 1 to a certain extent, and reduce the possibility of dead water area formation.

[0051] During the process of the receiving plate 21, the injection pipe 23 and the supporting ring 22 rotating together, the guide blade 3 will change position together with the injection pipe 23, and when the guide column 32 reaches the distal end of the guide groove 31, the guide blade 3 will flip to a vertical state with the injection pipe 23 as the rotation reference, which is beneficial to the falling of scale; conversely, when the guide column 32 reaches the proximal end of the guide groove 31, the guide blade 3 will rotate and contract in the direction close to the cathode rod 12 with the injection pipe 23 as the rotation reference, so as to press the nearby boiler circulating water toward the position of the cathode rod 12, further improve the fluidity of the boiler circulating water near the cathode rod 12, at this time, the boiler circulating water in the area near the cathode rod 12 that is already mixed with scale will be transferred downward with the water pressing action of the guide blade 3, and the boiler circulating water that is pressurized by the guide blade 3 and has not yet been mixed with scale will be transferred to the area near the cathode rod 12, thereby reducing the accumulation of scale near the cathode rod 12, which is beneficial to the improvement of the cleaning effect of the cathode rod 12.

[0052] Finally, the treated boiler circulating water will be discharged from the outlet pipe 13 in an overflow manner as the liquid level inside the treatment box 1 rises. When the slag discharge pipe connected to the bottom of the treatment box 1 is opened, the boiler circulating water remaining at the bottom of the treatment box 1 will be discharged from the slag discharge pipe together with the scale gathered at the bottom of the treatment box 1.

[0053] In a second aspect, the present application provides a boiler circulating water treatment process, which is applied to a boiler circulating water treatment device in the first aspect, and the treatment process includes:

[0054] S1, the boiler circulating water is passed into the injection pipe 23 through the water supply unit 24, and then the injection pipe 23 impacts the boiler circulating water on the surface of the cathode rod 12 in the form of a jet;

[0055] S2, as the boiler circulating water continues to flow in, when the anode rod 11 and the cathode rod 12 are completely submerged in the boiler circulating water, the anode rod 11 and the cathode rod 12 cooperate to apply current to the boiler circulating water to carry out electrolysis;

[0056] S3, the receiving plate 21, the injection pipe 23 and the supporting ring 22 are rotated together by the cooperation of the driving member 4, so that the scale on the surface of the cathode rod 12 is removed by the injection action of the boiler circulating water during the electrolysis process.

[0057] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A boiler circulating water treatment device, comprising a treatment box (1) and an anode rod (11), a cathode rod (12) and an injection assembly (2) arranged therein, wherein the anode rod (11) is located directly above the cathode rod (12), and a water outlet pipe (13) is connected to the wall of the treatment box (1), characterized in that: The injection assembly (2) comprises a receiving plate (21) and a supporting ring (22) which are rotatably connected to the left and right inner walls of the processing box (1), respectively; a plurality of injection pipes (23) are arranged in a circumferential array between the receiving plate (21) and the supporting ring (22); the cathode rod (12) is located between the plurality of injection pipes (23); and a water supply unit (24) for passing boiler circulating water into the injection pipe (23) is arranged between the supporting ring (22) and the processing box (1); The outside of the injection pipe (23) is rotatably sleeved with a plurality of guide blades (3); the inner wall of the treatment box (1) is provided with a guide groove (31); the guide groove (31) is arranged in a cam shape, and the distal end of the guide groove (31) is arranged downward; the inside of the guide groove (31) is slidably connected with a plurality of guide columns (32) corresponding to the injection pipes (23), and the guide columns (32) can penetrate all the guide blades (3) on the corresponding injection pipes (23); A driving member (4) is provided on the side wall of the processing box (1) for driving the receiving plate (21) to rotate.

2. A boiler circulating water treatment device according to claim 1, characterized in that: The treatment box (1) is elliptical and vertically arranged, with the anode rod (11) located at the top of the treatment box (1), the cathode rod (12) located at the bottom of the treatment box (1), and the water outlet pipe (13) connected to the top box wall of the treatment box (1).

3. A boiler circulating water treatment device according to claim 1, characterized in that: The water supply unit (24) comprises a transition ring (241) rotatably sleeved on the outside of the support ring (22); a water inlet pipe (242) capable of penetrating the inner wall of the treatment box (1) is fixedly connected to the transition ring (241); and an annular groove (243) capable of communicating with the injection pipe (23) and the water inlet pipe (242) is formed on the outer arc surface of the support ring (22).

4. A boiler circulating water treatment device according to claim 1, characterized in that: The driving member (4) comprises a reduction motor (41) arranged on the side wall of the processing box (1); the output shaft of the reduction motor (41) can drive the receiving plate (21) to rotate by means of a belt drive.

5. A boiler circulating water treatment device according to claim 1, characterized in that: A spoiler assembly (5) is provided between the receiving plate (21) and the supporting ring (22) for improving the fluidity of boiler circulating water in the area where the cathode rod (12) is located.

6. A boiler circulating water treatment device according to claim 5, characterized in that: The spoiler assembly (5) comprises a spoiler frame (52) axially slidably connected between a receiving plate (21) and a supporting ring (22) via an elastic member (51); the cathode rod (12) is located inside the spoiler frame (52); and an end face cam (53) capable of abutting against the spoiler frame (52) is provided on the inner wall of the processing box (1).

7. A boiler circulating water treatment device according to claim 6, characterized in that: The spoiler frame (52) is composed of a plurality of spoiler rings (521) and connecting rods (522), and the outer edge surface of each spoiler ring (521) is inclined from the inside to the outside in a direction close to the central axis of the spoiler ring.

8. A boiler circulating water treatment process, applied to a boiler circulating water treatment device according to claim 1, wherein the treatment process comprises: S1, passing boiler circulating water into the injection pipe (23) through the water supply unit (24), and then the injection pipe (23) impacts the boiler circulating water on the surface of the cathode rod (12) in the form of a jet; S2, as the boiler circulating water continues to flow in, when the anode rod (11) and the cathode rod (12) are completely submerged in the boiler circulating water, an electric current is applied to the boiler circulating water through the cooperation of the anode rod (11) and the cathode rod (12) to carry out electrolysis; S3, through the cooperation of the driving member (4), the receiving plate (21), the injection pipe (23) and the supporting ring (22) are rotated together, so that the scale on the surface of the cathode rod (12) is removed by the injection action of the boiler circulating water during the electrolysis process.

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