Self-cleaning electric boiler

Abstract

The utility model relates to electric heating boiler technical field, concretely discloses a kind of self descaling electric heating boilers, including the furnace body being provided with stirring frame, fixedly installed with spray head on stirring frame, the brush hair being fixedly installed with spray head end portion and the contact of furnace body inner wall, still include the swing bar being set on brush hair, swing bar side edge is contacted with furnace wall, and swing bar is driven and has arc motion trajectory.The self descaling electric heating boiler provided by the utility model is brushed by the brush hair rotating in the circumference to the furnace wall, and is sprayed with pickling liquor at the brush hair position to ensure the brushing effect.When the swing bar is moved by multiple brush hairs in arc path, the liquid containing particles attached to the brush wire can be thrown out, and the pickling liquor is sprayed to flush, realize the physical cleaning of the brush hair, and the brush hair does not need to be cleaned separately, so that the maintenance time is reduced.

Description

Technical Field

[0001] This utility model relates to electric boiler technology, specifically a self-descaling electric boiler. Background Technology

[0002] An electric boiler is a thermal device that converts electrical energy into heat energy to heat a medium. However, since the heating medium is usually water, electric boilers are prone to scale buildup on the furnace walls after long-term use, requiring acid washing for descaling.

[0003] For example, the publication (announcement) number: CN109990264B, publication (announcement) date: 2024-10-29, discloses an electric boiler with descaling function, including a boiler body, a top cover fixedly provided on the top of the boiler body, a limiting slot provided on the top cover, a frame fixedly provided on the top of the boiler body, a descaling agent tank fixedly provided on one side of the frame, lead screws provided on both sides inside the frame, sliders sleeved on the outside of the lead screws, servo motors connected to the inner sides of the two sliders through brackets, a rotating rod driven and connected to the bottom of the servo motors, and a descaling component fixedly provided at the bottom end of the rotating rod.

[0004] The shortcomings of existing technologies are that, in order to achieve efficient cleaning of the furnace wall, acid pickling solution is usually sprayed and then brushed with circumferentially moving bristles after the chemical reaction. However, since the slurry after the reaction usually contains particulate matter, the gaps between the bristles are very easy for the particulate matter to adhere and accumulate, which reduces the flexibility and mobility of the bristles and affects the actual brushing effect. The bristles also need to be cleaned separately afterward, which consumes maintenance time. Utility Model Content

[0005] The purpose of this invention is to provide a self-descaling electric boiler to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A self-descaling electric boiler includes a furnace body equipped with a stirring rack, a nozzle fixedly installed on the stirring rack, and bristles fixedly installed at the end of the nozzle to contact the inner wall of the furnace body.

[0008] It also includes a swing arm mounted on the brush bristles, the side of which contacts the furnace wall and the swing arm is driven to have an arc-shaped motion trajectory.

[0009] As a further description of the above technical solution: the nozzle end is provided with a liquid outlet located in the middle of the bristles.

[0010] As a further description of the above technical solution: the nozzle has a liquid chamber connected to the liquid outlet.

[0011] As a further description of the above technical solution, it also includes a liquid inlet connected to the liquid chamber.

[0012] As a further description of the above technical solution: a rotating shaft is rotatably provided on the nozzle, and a connecting rod connected to the swing arm is provided on the rotating shaft.

[0013] As a further description of the above technical solution: the liquid chamber is also connected to a liquid channel located outside the rotating shaft.

[0014] As a further description of the above technical solution: blades that move in the liquid channel are fixedly installed on the rotating shaft.

[0015] As a further description of the above technical solution: an elastic element is also fixedly installed on the rotating shaft.

[0016] As a further description of the above technical solution: the elastic element is specifically a torsion spring.

[0017] As a further description of the above technical solution: the rotating shaft is specifically an alloy metal rod.

[0018] In the above technical solution, the self-descaling electric boiler provided by this utility model has the following beneficial effects: It uses circumferentially rotating bristles to scrub the furnace wall, and acid pickling solution is sprayed onto the bristles to ensure the scrubbing effect. When the swing arm moves multiple bristles in an arc path, it can fling out the liquid containing particulate matter adhering to the bristles, and then rinse it with the sprayed acid pickling solution, achieving physical cleaning of the bristles. Subsequent separate cleaning of the bristles is unnecessary, reducing maintenance time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the assembly of the furnace body and stirring rack of the electric boiler provided for an embodiment of this utility model;

[0021] Figure 2 A side sectional view of the furnace body and stirring rack assembly of the electric boiler provided in an embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the mixing rack and multiple nozzles provided in an embodiment of the present utility model;

[0023] Figure 4 A schematic diagram of the nozzle provided for an embodiment of this utility model;

[0024] Figure 5 This is a schematic side cross-sectional view of the nozzle provided in an embodiment of the present utility model;

[0025] Figure 6 A schematic diagram of the rotating shaft provided in an embodiment of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Furnace body; 2. Stirring rack; 3. Nozzle; 31. Brush bristles; 32. Liquid chamber; 33. Liquid inlet; 34. Liquid channel; 35. Liquid outlet; 4. Rotating shaft; 40. Elastic component; 41. Blade; 42. Connecting rod; 43. Swing rod. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] Please see Figure 1-6 The present invention provides a technical solution: a self-descaling electric boiler, including a furnace body 1 with a stirring rack 2, a nozzle 3 fixedly installed on the stirring rack 2, and a brush bristle 31 fixedly installed at the end of the nozzle 3 in contact with the inner wall of the furnace body 1.

[0030] It also includes a swing arm 43 set on the brush bristles 31, the side of the swing arm 43 is in contact with the furnace wall, and the swing arm 43 has an arc-shaped motion trajectory when driven.

[0031] Specifically, the nozzle 3 is detachably installed on the end of the crossbar of the mixing frame 2 using bolts and nuts. The bristles 31 are made of nylon bristles, which are existing technologies, and the installation and fixing method of the bristles is also existing technology, which will not be described in detail here.

[0032] The stirring frame 2 drives multiple nozzles 3 to rotate circumferentially, causing the bristles 31 to scrub the furnace wall. Acid cleaning solution is sprayed onto the bristles 31 to ensure effective scrubbing. When the swing arm 43 moves the bristles 31 in an arc, it can fling out the liquid containing particulate matter adhering to the bristles (utilizing the bending deformation ability of the bristles 31, a large inertial force is generated during the bristle 31's reset process). Combined with the sprayed acid cleaning solution, this achieves physical cleaning of the bristles 31, eliminating the need for separate cleaning of the bristles 31 afterward, reducing maintenance time. Furthermore, the swing arm 43, in contact with the furnace wall, can scrape away scale during its swing, enhancing descaling ability and improving cleaning results.

[0033] In another embodiment of the present invention, the nozzle 3 is provided with a liquid outlet 35 located in the middle of the bristles 31 at its end.

[0034] The location of the outlet 35 allows the sprayed pickling solution to act directly on all the bristles, thus enabling the entire bristle 31 to better carry the pickling solution for the washing process.

[0035] In another embodiment of the present invention, the nozzle 3 has a liquid chamber 32 that communicates with the liquid outlet 35.

[0036] The liquid chamber 32 allows the nozzle 3 to pre-store some pickling solution, enabling the nozzle 3 to quickly spray out the pickling solution before the brushing operation.

[0037] In another embodiment of the present invention, a liquid inlet 33 connected to the liquid chamber 32 is also included.

[0038] Specifically, the liquid inlet 33 is connected using existing pipelines, and the pipelines are centrally connected to the pump body outside the furnace body 1.

[0039] The inlet 33 allows the nozzle 3 to better deliver the pickling solution.

[0040] In another embodiment of the present invention, a rotating shaft 4 is rotatably provided on the nozzle 3, and a connecting rod 42 connected to the swing arm 43 is provided on the rotating shaft 4.

[0041] Specifically, the connecting rod 42 is set horizontally, and the rotating shaft 4, the connecting rod 42, and the swing rod 43 form an inverted U-shape.

[0042] The rotating shaft 4, connected by the connecting rod 42, makes it easier to drive the swing arm 43 to swing back and forth, thereby enabling the swing arm 43, which is located in the middle of multiple bristles, to move the bristles 31 left and right.

[0043] In another embodiment of the present invention, the liquid chamber 32 is also connected to a liquid channel 34 located outside the rotating shaft 4.

[0044] Specifically, the liquid channel 34 is located between the liquid outlet 35 and the liquid chamber 32.

[0045] The pickling solution conveyed in the liquid channel 34 is interfered with by the rotating shaft 4, so that the pickling solution sprayed out of the outlet 35 is irregular, achieving the effect of random spraying, thereby increasing the impact on the brush bristles.

[0046] In another embodiment of the present invention, a blade 41 that moves in the liquid channel 34 is fixedly installed on the rotating shaft 4.

[0047] Specifically, the blades 41 are symmetrically and integrally formed with the rotating shaft 4, and the two blades 41 on the same vertical plane maintain a predetermined angle with the pickling liquid flow direction in the default state.

[0048] The tilted blade 41 is impacted by the flow of pickling liquid, causing the rotating shaft 4 to rotate and reset when the infusion stops, thus realizing the left and right reciprocating motion of the swing arm 43.

[0049] In another embodiment of the present invention, an elastic element 40 is also fixedly installed on the rotating shaft 4.

[0050] Specifically, one end of the elastic element 40 is inserted into the annular opening on the side wall of the rotating shaft element 4, and the other end is inserted into the nozzle 3.

[0051] The elastic element 40 ensures that the rotating shaft 4 will reset when it loses driving force.

[0052] In another embodiment of this utility model, the elastic element 40 is specifically a torsion spring.

[0053] Using torsion springs makes the deformation of elastic elements more pronounced, and it also helps control component costs while ensuring service life.

[0054] In another embodiment of this utility model, the rotating shaft 4 is specifically an alloy metal rod.

[0055] The use of alloy metal materials makes the rotating shaft 4 and its components more corrosion resistant, and reduces the failure rate of the components inside the nozzle 3.

[0056] Working principle: The stirring frame 2 drives multiple nozzles 3 to rotate circumferentially, causing the bristles 31 to scrub the furnace wall. Acid cleaning solution is sprayed onto the bristles 31 to ensure effective scrubbing. When the swing arm 43 moves the multiple bristles 31 in an arc path, it can fling out the liquid containing particulate matter adhering to the bristles, and the sprayed acid cleaning solution further cleans the bristles 31 physically. No separate cleaning of the bristles 31 is required afterward, reducing maintenance time. Furthermore, the swing arm 43, which is in contact with the furnace wall, can scrape away scale during the swinging process, enhancing the descaling ability.

[0057] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A self-descaling electric boiler, comprising a furnace body (1) equipped with a stirring rack (2), characterized in that, A nozzle (3) is fixedly installed on the stirring rack (2), and a brush (31) that contacts the inner wall of the furnace body (1) is fixedly installed at the end of the nozzle (3). It also includes a swing arm (43) set on the brush (31), the side of the swing arm (43) is in contact with the furnace wall, and the swing arm (43) is driven to have an arc-shaped motion trajectory.

2. The self-descaling electric boiler according to claim 1, characterized in that, The nozzle (3) has a liquid outlet (35) located in the middle of the bristles (31) at its end.

3. The self-descaling electric boiler according to claim 2, characterized in that, The nozzle (3) has a liquid chamber (32) connected to the liquid outlet (35).

4. The self-descaling electric boiler according to claim 3, characterized in that, It also includes a liquid inlet (33) connected to the liquid chamber (32).

5. A self-descaling electric boiler according to claim 3, characterized in that, The nozzle (3) is rotatably provided with a rotating shaft (4), and the rotating shaft (4) is provided with a connecting rod (42) connected to the swing arm (43).

6. A self-descaling electric boiler according to claim 3, characterized in that, The liquid chamber (32) is also connected to a liquid channel (34) located outside the rotating shaft (4).

7. A self-descaling electric boiler according to claim 6, characterized in that, The rotating shaft (4) is fixedly mounted with blades (41) that move in the liquid channel (34).

8. A self-descaling electric boiler according to claim 6, characterized in that, An elastic element (40) is also fixedly installed on the rotating shaft (4).

9. A self-descaling electric boiler according to claim 8, characterized in that, The elastic element (40) is specifically a torsion spring.

10. A self-descaling electric boiler according to claim 5, characterized in that, The rotating shaft (4) is specifically an alloy metal rod.

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