Steam generating device and control method of steam generating device

Abstract

The application relates to the technical field of household appliances, and provides a steam generation device and a control method of the steam generation device.A steam generation device according to an embodiment of the application comprises a device main body, a heating tube and a scraping assembly, an evaporation cavity is formed in the device main body; the heating tube is connected to the device main body, and the heating tube is at least partially located in the evaporation cavity; the scraping assembly comprises a support and a scraping piece, the support is rotationally connected to the device main body, the scraping piece is connected to the support, and the working end of the scraping piece abuts against the outer periphery of the heating tube and / or the inner wall of the device main body; the heating tube is a cylindrical rotary body, and the scraping piece is adapted to rotate around the axis of the heating tube.The steam generation device according to the embodiment of the application can rotate the scraping piece around the heating tube to scrape off the water scale formed on the heating tube after each steam work, so that stubborn water scale formed by long-term accumulation is avoided, and the heating efficiency of the steam generator is ensured.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to a steam generator and a control method for the steam generator. Background Technology

[0002] A common problem in existing steam generators is scale formation. When water is heated to boiling, minerals such as calcium and magnesium in the water undergo chemical changes at high temperatures, forming insoluble substances like calcium carbonate and calcium sulfate. These substances gradually deposit on the heat exchange surfaces in contact with heating pipes or the heating elements in the vaporization chamber, forming a stubborn layer of scale. Scale formation is a continuous process, and it gradually thickens over time. This not only leads to pipe blockage and steam generator failure but also severely impacts the heating efficiency. Because scale has extremely poor thermal conductivity, only a fraction of that of metals, its accumulation in the steam generator significantly hinders heat transfer, reducing the heat exchange efficiency of the heating pipes or vaporization chamber. This prevents some water from completely vaporizing, thus affecting the quality of the steam. Summary of the Invention

[0003] This application aims to at least solve one of the technical problems existing in the related art. To this end, this application proposes a steam generating device that solves the defect that the steam quality of existing steam generating devices deteriorates with the number of uses.

[0004] This application also proposes a control method for a steam generator.

[0005] A steam generating apparatus according to an embodiment of this application includes: The main body of the device has an evaporation chamber formed inside it. A heating element is connected to the main body of the device, and the heating element is at least partially located in the evaporation chamber; The scraping assembly includes a bracket and a scraper. The bracket is rotatably connected to the main body of the device, and the scraper is connected to the bracket. The working end of the scraper abuts against the outer periphery of the heating tube and / or the inner wall of the main body of the device. The heating tube is a cylindrical rotating body, and the scraper is adapted to rotate around the axis of the heating tube.

[0006] According to the steam generator of the present application embodiment, after each steam operation, the scraper can rotate around the heating tube to scrape off the scale formed on the heating tube, avoiding long-term accumulation of stubborn scale and ensuring the heating efficiency of the steam generator.

[0007] According to one embodiment of this application, the scraper includes a connecting portion and a first scraping portion. The connecting portion is connected to the bracket, and the first scraping portion is connected to the connecting portion. The first scraping portion is provided with the working end, and the connecting portion and the first scraping portion are arranged at an angle.

[0008] According to one embodiment of this application, the scraper is an elastic scraper.

[0009] According to one embodiment of this application, the number of scrapers is multiple, and the multiple scrapers are evenly distributed along the rotation axis of the bracket.

[0010] According to one embodiment of this application, the bracket is disposed between the heating tube and the side wall of the device body, and the scraper further includes a second scraping part, which is connected to the connecting part and abuts against the side wall of the device body.

[0011] According to one embodiment of this application, the cutting angle between the first scraper and the heating element is an acute angle; And / or, The cutting angle between the second scraper and the side wall of the main body of the device is an acute angle.

[0012] According to one embodiment of this application, the device body includes: shell; The upper end cover is located at the upper end of the outer shell; The lower end cover is located at the lower end of the outer shell. The outer shell, the upper end cover, and the lower end cover form the evaporation chamber. The heating element is installed on the upper end cover, and the bracket is installed on the lower end cover.

[0013] According to one embodiment of this application, the steam generating device includes a first sealing ring, which is sleeved on the heating tube and abuts against a first end of the device body.

[0014] According to one embodiment of this application, the steam generating device includes a power component and a rotating connector. The bracket is connected to the rotating connector, the rotating connector is rotatably connected to the device body, and the rotating connector extends at least partially out of the device body. The power component is connected to the rotating connector and is adapted to drive the rotating connector to rotate.

[0015] According to one embodiment of this application, the main body of the device is provided with a water inlet and an air outlet, the water inlet and the air outlet are connected to the evaporation chamber, and the air outlet is located above the water inlet.

[0016] A control method for a steam generator according to a second aspect embodiment of this application, applied to the aforementioned steam generator, includes: After the steam generator has finished its work, the heating element stops working. Control the scraping component to rotate around the axis of the heating tube to scrape off scale adhering to the outer wall of the heating tube and / or the inner wall of the device body; Control the flow of room temperature water into the evaporation chamber and discharge the room temperature water containing scale from the evaporation chamber.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the steam generator provided in the embodiments of this application.

[0020] Figure 2 This is one of the cross-sectional structural schematic diagrams of the steam generating device provided in the embodiments of this application.

[0021] Figure 3 This is the second cross-sectional structural schematic diagram of the steam generating device provided in the embodiments of this application.

[0022] Figure 4 This is a cross-sectional structural schematic diagram of a steam generating device provided in another embodiment of this application.

[0023] Figure 5 This is a schematic diagram of the explosion structure of the steam generator provided in the embodiments of this application.

[0024] Figure 6 This is a schematic diagram of the scraping component provided in the embodiments of this application.

[0025] Figure 7 This is a cross-sectional structural diagram of the scraping component provided in the embodiments of this application.

[0026] Figure 8 This is a schematic diagram of the control method steps for the steam generator provided in the embodiments of this application.

[0027] Figure label: 100. Main body of the device; 101. Evaporation chamber; 110. Outer shell; 120. Upper end cover; 121. First annular protrusion; 122. Second annular protrusion; 123. First mounting groove; 124. Third mounting groove; 130. Lower end cover; 131. Third annular protrusion; 132. Fourth annular protrusion; 133. Second mounting groove; 134. Fourth mounting groove; 150. Water inlet; 160. Air outlet; 200. Heating element; 300. Scraping assembly; 310. Support; 320. Scraper; 321. Connecting part; 322. First scraper; 323. Second scraper; 400. First sealing ring; 500. Rotary connector; 600. Second sealing ring. Detailed Implementation

[0028] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0029] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections, wherein a fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0031] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] The following is combined Figures 1 to 7 This application describes the steam generating apparatus.

[0034] A steam generating apparatus according to an embodiment of this application is provided. Please refer to... Figure 1 and Figure 2 The steam generating device includes a main body 100, a heating element 200, and a scraping assembly 300. An evaporation chamber 101 is formed inside the main body 100. The heating element 200 is connected to the main body 100 and is at least partially located in the evaporation chamber 101. The scraping assembly 300 includes a support 310 and a scraper 320. The support 310 is rotatably connected to the main body 100, and the scraper 320 is connected to the support 310. The working end of the scraper 320 abuts against the outer periphery of the heating element 200 and / or the inner wall of the main body 100. The heating element 200 is a cylindrical rotating body, and the scraper 320 is adapted to rotate around the axis of the heating element 200.

[0035] According to the steam generator of the present application embodiment, after each steam operation, the scraper 320 can rotate around the heating tube 200 to scrape off the scale formed on the heating tube 200, so as to avoid long-term accumulation of stubborn scale and ensure the heating efficiency of the steam generator.

[0036] The evaporation chamber 101 is the main area where water is heated and evaporated into steam. The heating element 200 is located at least partially inside the evaporation chamber 101. The heating element 200 transfers heat to the water in the evaporation chamber 101 through electric heating or other heating methods, causing it to evaporate. The scraping component 300 is rotatably connected to the main body 100 of the device. The bracket 310 can rotate around the axis of the heating element 200 within the main body 100 of the device, allowing the scraper 320 to move along the outer periphery of the heating element 200. The working end of the scraper 320 abuts against the outer periphery of the heating element 200. During the rotation process, the working end is in close contact with the outer periphery of the heating element 200, thereby achieving the scraping of scale on the heating element 200.

[0037] Understandably, timely removal of scale from the heating element 200 ensures good heat transfer between the heating element 200 and the moisture in the evaporation chamber 101. This not only increases the rate of steam generation but also reduces energy consumption, thereby improving the heating efficiency of the steam generator.

[0038] According to one embodiment of this application, the scraper 320 includes a connecting part 321 and a first scraper part 322. The connecting part 321 is connected to the bracket 310, and the first scraper part 322 is connected to the connecting part 321. The first scraper part 322 is provided with a working end, and the connecting part 321 and the first scraper part 322 are arranged at an angle.

[0039] The connecting part 321 is responsible for fixing the scraper 320 to the bracket 310 and ensuring that the scraper 320 can move as the bracket 310 rotates. The connecting part 321 and the first scraper 322 can be fixedly connected by means of snap-fit ​​welding or integral connection. The first scraper 322 is the part of the scraper 320 that directly contacts the scale. It has a working end for abutting against and scraping the scale on the outer periphery of the heating element 200.

[0040] In this embodiment, the connecting part 321 and the first scraper part 322 are set at an angle. This allows the working end of the first scraper part 322 to abut against the outer periphery of the heating element 200 at a more suitable angle, increasing the contact area between the scraper part 320 and the heating element 200, improving the scraping effect, and thus more effectively removing scale.

[0041] According to one embodiment of this application, the scraper 320 is an elastic scraper 320.

[0042] It is understood that the scraper 320 has a certain elastic deformation capability, and can undergo a certain degree of deformation when subjected to external force, and return to its original shape after the external force disappears. In this embodiment, the connecting part 321 and / or the first scraping part 322 of the scraper 320 can be made of elastic material, such as spring steel, stainless steel spring sheet, etc.

[0043] Because the heating element 200 may undergo slight shape changes during long-term use due to factors such as thermal expansion and contraction and scale buildup, the traditional rigid scraper 320 may not be able to fully adapt to these changes, resulting in poor scraping performance. The elastic scraper 320, however, can adapt to the shape changes of the heating element 200 through its elastic deformation capability. This elastic deformation capability allows it to better conform to the outer periphery of the heating element 200, increasing the contact area and tightness, and ensuring consistent scraping performance.

[0044] According to one embodiment of this application, there are multiple scrapers 320, and the multiple scrapers 320 are evenly distributed along the rotation axis of the bracket 310.

[0045] Understandably, the multiple scrapers 320 are evenly distributed along the axis of rotation of the bracket 310, allowing for simultaneous scraping of multiple parts of the heating element 200, thereby greatly improving scraping efficiency. In this embodiment, the scrapers 320 are evenly distributed along the axis of rotation of the bracket 310, ensuring that all parts of the heating element 200 are thoroughly scraped during the scale removal process.

[0046] Multiple scraper elements 320 operate simultaneously, supporting and balancing each other, thereby enhancing the overall stability of the scraping assembly 300. This not only reduces shaking and deviation during the scraping process but also ensures smooth operation.

[0047] According to one embodiment of this application, please refer to Figure 4 The bracket 310 is disposed between the heating tube 200 and the side wall of the device body 100. The scraper 320 also includes a second scraper 323, which is connected to the connecting part 321 and abuts against the side wall of the device body 100.

[0048] In this embodiment, the second scraper 323 is connected to the connecting part 321, is disposed opposite to or adjacent to the first scraper 322, and abuts against the side wall of the device body 100. When the scraper 320 rotates with the bracket 310, the first scraper 322 is responsible for scraping off the scale around the heating tube 200, while the second scraper 323 is responsible for scraping off the scale on the side wall of the device body 100.

[0049] The steam generator of this embodiment can more thoroughly remove scale. Scale on both the outer periphery of the heating element 200 and the side walls of the main body 100 can be effectively removed, thereby ensuring the efficient operation of the steam generator.

[0050] According to one embodiment of this application, the cutting angle between the first scraper 322 and the heating tube 200 is an acute angle.

[0051] The cutting angle between the first scraper 322 and the heating element 200 refers to the angle between the working end of the first scraper 322 and the outer periphery of the heating element 200 when they come into contact. When the cutting angle is acute, the working end of the first scraper 322 can more easily cut into the scale on the outer periphery of the heating element 200, thereby removing the scale more effectively.

[0052] The acute angle between the first scraper 322 and the heating tube 200 enhances the stability of the scraper 320 during the scraping process. The first scraper 322 can better fit on the outer periphery of the heating tube 200, thus reducing the shaking and deviation of the scraper 320 during the scraping process, thereby improving the accuracy and stability of the scraping.

[0053] According to one embodiment of this application, the cutting angle between the second scraper 323 and the side wall of the device body 100 is an acute angle.

[0054] The cutting angle between the second scraper 323 and the side wall of the device body 100 refers to the included angle between the working end of the second scraper 323 and the side wall of the device body 100 when they come into contact. Similar to the first scraper 322, when the cutting angle of the second scraper 323 is acute, its working end can more easily cut into the scale on the side wall of the device body 100, thereby removing the scale more effectively.

[0055] According to one embodiment of this application, the main body 100 of the device includes a housing 110, an upper end cover 120 and a lower end cover 130. The upper end cover 120 is disposed at the upper end of the housing 110; the lower end cover 130 is disposed at the lower end of the housing 110. The housing 110, the upper end cover 120 and the lower end cover 130 form an evaporation chamber 101. The heating tube 200 is installed on the upper end cover 120 and the bracket 310 is installed on the lower end cover 130.

[0056] The upper end cover 120 is located at the upper end of the outer casing 110 and fits tightly with the outer casing 110 to form part of the evaporation chamber 101. The upper end cover 120 is provided with mounting holes that match the heating element 200 for mounting and fixing the heating element 200. In one embodiment, the upper end cover 120 is provided with a steam outlet 160 that communicates with the steam outlet so as to exhaust the steam generated in the evaporation chamber 101.

[0057] The lower end cover 130 is located at the lower end of the outer casing 110, and together with the outer casing 110 and the upper end cover 120, forms the evaporation chamber 101. The lower end cover 130 is provided with a mounting structure that matches the bracket 310 for mounting and fixing the bracket 310. A scraper 320 is mounted on the bracket 310 for scraping off scale from the heating element 200 and the side wall of the device body 100. In one embodiment, the lower end cover 130 is provided with a water inlet 150 that communicates with the water inlet 150 to inject water into the evaporation chamber 101.

[0058] It is understandable that by disassembling the main body 100 of the device into three main parts, namely the outer shell 110, the upper end cover 120 and the lower end cover 130, when maintenance or cleaning is required, only the corresponding parts need to be removed. Since both the upper end cover 120 and the lower end cover 130 are detachable, it is convenient to clean the scale and impurities inside the evaporation chamber 101.

[0059] According to one embodiment of this application, the upper end cover 120 is provided with a first annular protrusion 121 and a second annular protrusion 122. The first annular protrusion 121 and the second annular protrusion 122 are coaxial. The first annular protrusion 121 and the second annular protrusion 122 are spaced apart to form a first mounting groove 123. The first end of the outer shell 110 is mounted in the first mounting groove 123.

[0060] Understandably, the first annular protrusion 121 is located inside the upper end cover 120, near its center. It serves a supporting and positioning function, providing a stable mounting base for the first end of the outer casing 110. The second annular protrusion 122 is located outside the first annular protrusion 121, maintaining a certain distance from the first annular protrusion 121 to form the first mounting groove 123. The first end of the outer casing 110 ( Figure 1 The upper end of the housing 110 is installed in the first mounting groove 123 to achieve a stable connection. In some embodiments, the first end of the housing 110 can also be fixedly connected to the upper end cover 120 by means of fasteners (such as bolts, nuts, etc.) or welding.

[0061] Understandably, the first mounting groove 123 provides a good sealing interface between the outer shell 110 and the upper cover 120. During installation, the sealing effect can be further enhanced by adding seals (such as sealing rings, sealant, etc.) to prevent steam or water from leaking out from the connection.

[0062] According to one embodiment of this application, the lower end cover 130 is provided with a third annular protrusion 131 and a fourth annular protrusion 132. The third annular protrusion 131 and the fourth annular protrusion 132 are coaxial and are spaced apart to form a second mounting groove 133. The second end of the outer shell 110 is mounted in the second mounting groove 133.

[0063] The third annular protrusion 131 is located on the inner side of the lower end cover 130, near its center. It serves as a support structure for the second end of the outer casing 110. Figure 1The lower end of the housing 110 provides a stable mounting base. The fourth annular protrusion 132 is located outside the third annular protrusion 131 and forms a second mounting groove 133 at a certain interval from the third annular protrusion 131. The second end of the housing 110 is installed in the second mounting groove 133 to achieve a stable connection. In some embodiments, the second end of the housing 110 can also be tightly fixed to the lower end cover 130 by means of fasteners (such as bolts, nuts, etc.) or welding.

[0064] Understandably, the second mounting groove 133 provides a good sealing interface between the outer casing 110 and the lower end cap 130. During installation, seals (such as sealing rings, sealant, etc.) can be added to further enhance the sealing effect and ensure that steam or water does not leak from the connection.

[0065] According to one embodiment of this application, a third mounting groove 124 is provided in the middle of the first end of the device body 100, and the heating tube 200 is mounted in the third mounting groove 124.

[0066] Understandably, the device body 100 has a centrally protruding structure at its first end, and a third mounting groove 124 is formed inside this protruding structure. During installation, the wiring terminals of the heating element 200 are inserted into the third mounting groove 124, and the wiring harness of the heating element 200 extends out of the third mounting groove 124 to connect to the power supply or other control devices.

[0067] According to one embodiment of this application, the steam generating device includes a first sealing ring, which is sleeved on the heating tube 200 and abuts against the first end of the device body 100.

[0068] The first sealing ring is a ring-shaped seal, which can be made of materials that are resistant to high temperatures, corrosion, and have good elasticity, such as silicone or fluororubber. The main function of the first sealing ring is to prevent steam or water from leaking from the gap between the heating tube 200 and the first end of the device body 100 to the wiring terminal of the heating tube 200, thereby ensuring the normal operation and safety of the steam generating device.

[0069] In this embodiment, the first sealing ring is sleeved on the heating tube 200, and the outer edge of the first sealing ring tightly abuts against the inner wall of the first end of the device body 100, which not only ensures the stability of the sealing ring, but also enables the sealing ring to effectively perform its sealing function.

[0070] According to one embodiment of this application, a steam generating device includes a power assembly and a rotating connector 500. A bracket 310 is connected to the rotating connector 500, the rotating connector 500 is rotatably connected to the device body 100, and the rotating connector 500 extends at least partially out of the device body 100. The power assembly is connected to the rotating connector 500 and is adapted to drive the rotating connector 500 to rotate.

[0071] In this embodiment, the rotating connector 500 is mounted on the device body 100 and connected to the bracket 310. This design allows the bracket 310 to rotate relative to the device body 100, and the rotating connector 500 can be driven by an external power component, such as a motor or other rotating device.

[0072] In one embodiment, the steam generating device includes a second sealing ring 600, which is sleeved on the rotary connector 500 and abuts against the second end of the device body 100.

[0073] The second sealing ring 600 is an annular seal, and its material can be selected from high-temperature resistant, corrosion-resistant, and highly elastic materials, such as silicone or fluororubber. The main function of the second sealing ring 600 is to prevent steam, water, or other media from leaking out from the gap between the rotating connector 500 and the main body 100 of the device, thereby ensuring the sealing performance and safety of the steam generating device.

[0074] In one embodiment, the second end of the device body 100 is provided with a fourth mounting groove 134, and the second sealing ring 600 is disposed in the fourth mounting groove 134. It is understood that the fourth mounting groove 134 provides a stable support structure for the second sealing ring 600, and the shape and size of the fourth mounting groove 134 are precisely designed according to the shape and size of the second sealing ring 600 to ensure that the sealing ring can be tightly embedded therein and perform its sealing function.

[0075] According to one embodiment of this application, the main body 100 of the device is provided with a water inlet 150 and an air outlet 160, the water inlet 150 and the air outlet 160 are connected to the evaporation chamber 101, and the air outlet 160 is located above the water inlet 150.

[0076] It is understood that the inlet 150 is the channel for liquid water to enter the evaporation chamber 101, and the outlet 160 is the channel for steam to exit from the evaporation chamber 101. In this embodiment, the outlet 160 is located above the inlet 150. Since the density of steam is lower than that of liquid water, the steam will naturally rise within the evaporation chamber 101. Positioning the outlet 160 above the inlet 150 ensures that the steam can smoothly exit from the evaporation chamber 101 without being obstructed by the liquid water.

[0077] The water inlet 150 can be located on the lower end cover 130 or the outer casing 110, and the air outlet 160 can be located on the outer casing 110 or the upper end cover 120. No specific restrictions are imposed here.

[0078] A control method for a steam generator according to a second aspect embodiment of this application, applied to the aforementioned steam generator, includes steps 100, 200, and 300. Please refer to... Figure 8 .

[0079] Step 100: After the steam generator has finished working, the heating element stops working.

[0080] Step 200: Control the scraping component to rotate around the axis of the heating tube to scrape off the scale adhering to the outer wall of the heating tube and / or the inner wall of the device body.

[0081] Step 300: Control the flow of room temperature water into the evaporation chamber and discharge the room temperature water containing scale from the evaporation chamber.

[0082] Understandably, in step 100, after the heating element stops working, the device enters the scale removal mode, which avoids further hardening of scale under high temperature conditions and creates favorable conditions for subsequent scraping work.

[0083] In step 200, by controlling the scraping component to rotate around the axis of the heating tube, it can fully cover the outer wall of the heating tube and / or the inner wall of the device body, thoroughly remove the attached scale, avoid the long-term accumulation of scale to form stubborn dirt, and thus significantly improve the heating efficiency of the heating tube.

[0084] In step 300, the liquid containing scale is discharged from the evaporation chamber by introducing room temperature water, which avoids the use of chemical cleaning agents, reduces environmental pollution, reduces the risk of chemical corrosion to the equipment, and extends the service life of the equipment.

[0085] Understandably, regularly removing scale can maintain the high heating efficiency of the heating element, reduce energy waste, lower operating costs, and thus improve the economic benefits of the equipment.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of this application do not depart from the spirit and scope of the technical solutions of this application and should be covered within the scope of the claims of this application.

Claims

1. A steam generating device, characterized in that, include: The device body (100) has an evaporation chamber (101) formed inside it. A heating element (200) is connected to the main body (100) of the device, and the heating element (200) is at least partially located in the evaporation chamber (101). The scraping assembly (300) includes a bracket (310) and a scraper (320). The bracket (310) is rotatably connected to the device body (100), and the scraper (320) is connected to the bracket (310). The working end of the scraper (320) abuts against the outer periphery of the heating tube (200) and / or the inner wall of the device body (100). The heating tube (200) is a cylindrical rotating body, and the scraper (320) is adapted to rotate around the axis of the heating tube (200).

2. The steam generating device according to claim 1, characterized in that, The scraper (320) includes a connecting part (321) and a first scraper part (322). The connecting part (321) is connected to the bracket (310), and the first scraper part (322) is connected to the connecting part (321). The first scraper part (322) is provided with the working end, and the connecting part (321) and the first scraper part (322) are set at an angle.

3. The steam generating device according to claim 2, characterized in that, The scraper (320) is an elastic scraper (320).

4. The steam generating device according to claim 2, characterized in that, The number of scrapers (320) is multiple, and the multiple scrapers (320) are evenly distributed along the rotation axis of the bracket (310).

5. The steam generating apparatus according to claim 2, characterized in that, The bracket (310) is disposed between the heating tube (200) and the side wall of the device body (100). The scraper (320) further includes a second scraper (323), which is connected to the connecting part (321) and abuts against the side wall of the device body (100).

6. The steam generating apparatus according to claim 5, characterized in that, The cutting angle between the first scraper (322) and the heating tube (200) is an acute angle; And / or, The cutting angle between the second scraper (323) and the side wall of the device body (100) is an acute angle.

7. The steam generating apparatus according to any one of claims 1 to 6, characterized in that, The main body (100) of the device includes: Outer shell (110); The upper end cover (120) is provided at the upper end of the outer shell (110); The lower end cover (130) is located at the lower end of the outer shell (110). The outer shell (110), the upper end cover (120) and the lower end cover (130) form the evaporation chamber (101). The heating tube (200) is installed on the upper end cover (120) and the bracket (310) is installed on the lower end cover (130).

8. The steam generating apparatus according to claim 7, characterized in that, The steam generating device includes a first sealing ring, which is sleeved on the heating tube (200) and abuts against the first end of the device body (100).

9. The steam generating apparatus according to any one of claims 1 to 6, characterized in that, The steam generating device includes a power assembly and a rotating connector (500). The bracket (310) is connected to the rotating connector (500), the rotating connector (500) is rotatably connected to the device body (100), and the rotating connector (500) extends at least partially out of the device body (100). The power assembly is connected to the rotating connector (500) and is adapted to drive the rotating connector (500) to rotate.

10. The steam generating apparatus according to any one of claims 1 to 6, characterized in that, The main body (100) of the device is provided with a water inlet (150) and an air outlet (160), the water inlet (150) and the air outlet (160) are connected to the evaporation chamber (101), and the air outlet (160) is located above the water inlet (150).

11. A control method for a steam generating device, applied to the steam generating device according to any one of claims 1 to 10, characterized in that, include: After the steam generator has finished its work, the heating element stops working. Control the scraping component to rotate around the axis of the heating tube to scrape off scale adhering to the outer wall of the heating tube and / or the inner wall of the device body; Control the flow of room temperature water into the evaporation chamber and discharge the room temperature water containing scale from the evaporation chamber.

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