A DC electric heating steam generator
By introducing a drive motor into the DC electric heating steam generator to drive the rotating rod and scraper to clean the scale, the problem of scale accumulation on the inner wall of the containment chamber is solved, and the equipment can be operated efficiently and maintained conveniently.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN SIWEI BOILER MFG CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-06-30
AI Technical Summary
After prolonged use, scale will form on the inner wall of the housing of existing DC electric heating steam generators, reducing the internal space and affecting work efficiency.
A DC electric heating steam generator was designed, which uses a drive motor to drive a rotating rod to drive a scraper to clean the inner wall of the receiving cavity. Combined with a detachable base plate, it facilitates inspection and maintenance, and ensures the cleanliness and stable operation of the internal components.
It effectively removes limescale, prevents limescale buildup on the inner walls of the containment chamber, maintains internal space, improves work efficiency, and facilitates equipment maintenance.
Smart Images

Figure CN224434353U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steam boiler manufacturing technology, and in particular to a DC electric heating steam generator. Background Technology
[0002] A boiler is an energy conversion device. Energy input to a boiler can be in the form of chemical energy from fuel, electrical energy, or thermal energy from high-temperature flue gas. After conversion, the boiler outputs steam, high-temperature water, or organic heat carriers with a certain amount of thermal energy. Boilers that provide hot water are called hot water boilers, mainly used for domestic purposes, with some applications in industrial production. Boilers that produce steam are called steam boilers, often simply referred to as boilers. They are mostly used in thermal power plants, ships, locomotives, and industrial and mining enterprises. Direct current steam generators utilize electromagnetic induction coils for heating. Their working principle is that the electromagnetic induction coil converts direct current into high-frequency alternating current. The high-frequency alternating current generates a high-frequency alternating magnetic field through the coil. When the magnetic field acts on the water molecules inside the boiler, the water molecules will vibrate and rotate at high frequency, thereby generating heat through friction, raising the water temperature and producing steam.
[0003] Existing technologies have the following problems:
[0004] After extensive searching, it was found that the patent document with application number CN202222577172.8 discloses an electromagnetic heating steam generator. However, after long-term use, scale will form on the inner wall of the housing cavity. If this scale is not cleaned in time, it will lead to a reduction in the internal space of the housing cavity, thereby affecting work efficiency.
[0005] To address these shortcomings, we propose a DC electric heating steam generator. Utility Model Content
[0006] The purpose of this invention is to provide a DC electric heating steam generator to overcome the shortcomings of existing technologies.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a DC electric heating steam generator, comprising a generator body, an electromagnetic induction coil disposed on the inner wall of the generator body, a receiving cavity formed on the surface of the generator body, and a rotating rod rotatably connected inside the receiving cavity, a scraper detachably mounted on the surface of the rotating rod, the surface of the scraper being in contact with the inner wall of the receiving cavity, a drive motor fixedly mounted on the top surface of the generator body, and the output end of the drive motor being connected to one end of the rotating rod through a heat insulation component, a steam-water separator connected to one side of the generator body through a steam-water connecting pipe, and the lower end of the steam-water separator being connected to the receiving cavity through a return pipe, a water level gauge disposed between the steam-water separator and the return pipe, and a base plate threadedly connected to the lower end of the generator body.
[0008] Preferably, a water inlet pipe is provided below the surface of the generator body, and the water inlet pipe is connected to the receiving cavity.
[0009] Preferably, a microcontroller is fixedly installed on the outer wall of the generator body, and the microcontroller is electrically connected to the drive motor and the electromagnetic induction coil through wires.
[0010] Preferably, a sealing ring is provided between the base plate and the generator body.
[0011] Preferably, the receiving cavity is provided in multiple ways, and all multiple receiving cavities are used in conjunction with the generator body.
[0012] Preferably, the scraper is provided in multiple manner, and the multiple scrapers are distributed in a circular array on the surface of the rotating rod.
[0013] Preferably, the top of the steam-water separator is equipped with a steam outlet.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model is equipped with a drive motor, a rotating rod, and a scraper. The drive motor drives the rotating rod to rotate, and the rotating rod drives the scraper to rotate as well, which can clean the scale on the inner wall of the receiving cavity. The scale that is cleaned off can be discharged with water through the inlet pipe. This avoids the problem of scale accumulation on the inner wall of the receiving cavity after long-term use, which leads to a reduction in internal space. It is highly practical and worth promoting.
[0016] 2. In this utility model, a detachable base plate is provided, which is threadedly connected to the generator body. This facilitates the removal of the base plate for inspection and maintenance of the internal components of the generator. The design is ingenious. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of a DC electric heating steam generator proposed in this utility model;
[0019] Figure 2 This is a schematic diagram showing the connection between the drive motor, the rotating rod, and the scraper.
[0020] Figure 3 This is a three-dimensional view of the base plate;
[0021] Figure 4This is a schematic diagram showing the connection between the generator body and the base plate.
[0022] Legend:
[0023] 1. Generator body; 2. Base plate; 3. Electromagnetic induction coil; 4. Receiving cavity; 5. Water inlet pipe; 6. Steam-water connecting pipe; 7. Steam-water separator; 8. Steam outlet; 9. Water level gauge; 10. Return pipe; 11. Microcontroller; 12. Drive motor; 13. Rotating rod; 14. Scraper. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, 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 an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0026] Please refer to Figure 1-4A DC electric heating steam generator includes a generator body 1, an electromagnetic induction coil 3 disposed on the inner wall of the generator body 1, a receiving cavity 4 formed on the surface of the generator body 1, and a rotating rod 13 rotatably connected inside the receiving cavity 4. A scraper 14 is detachably mounted on the surface of the rotating rod 13, and the surface of the scraper 14 is in contact with the inner wall of the receiving cavity 4. A drive motor 12 is fixedly mounted on the top surface of the generator body 1, and the output end of the drive motor 12 is connected to one end of the rotating rod 13 through a heat insulation component. A steam-water separator 7 is connected to one side of the generator body 1 through a steam-water connecting pipe 6, and the lower end of the steam-water separator 7 is connected to the receiving cavity 4 through a return pipe 10. A water level gauge 9 is disposed between the steam-water separator 7 and the return pipe 10. A base plate 2 is threadedly connected to the lower end of the generator body 1.
[0027] In operation, the water pump replenishes the receiving cavity 4 with water through the inlet pipe 5. The start and stop of the water pump are determined by the water level displayed on the water level gauge 9. Once there is sufficient water in the receiving cavity 4, a high-frequency power supply is applied to the electromagnetic induction coil 3. The electromagnetic induction coil 3 directly heats the water in the receiving cavity 4 through electromagnetic induction. The steam-water mixture generated in the receiving cavity 4 after heating enters the steam-water separator 7 through the steam-water connecting pipe 6 for separation. The separated steam is discharged through the steam outlet 8, and the separated water flows back into the receiving cavity 4 through the return pipe 10 for further processing. Heating is achieved by driving motor 12 to rotate rotating rod 13, which in turn drives scraper 14 to rotate, thus cleaning the scale on the inner wall of the receiving cavity 4. The scale removed is discharged with water through inlet pipe 5, avoiding the problem of scale accumulation on the inner wall of the receiving cavity 4 after long-term use, which reduces the internal space. It is highly practical and worth promoting. The design is ingenious, with a detachable base plate 2 that is threaded to the generator body 1, which allows for easy removal of the base plate 2 for inspection and maintenance of the internal components.
[0028] In this embodiment: a water inlet pipe 5 is provided below the surface of the generator body 1, and the water inlet pipe 5 is connected to the receiving cavity 4.
[0029] Specifically, it can replenish water into the receiving cavity 4 and also remove scale along with the water.
[0030] In this embodiment: a microcontroller 11 is fixedly installed on the outer wall of the generator body 1, and the microcontroller 11 is electrically connected to the drive motor 12 and the electromagnetic induction coil 3 through wires.
[0031] Specifically, the common circuit connection structure will not be elaborated on here.
[0032] In this embodiment, a sealing ring is provided between the base plate 2 and the generator body 1.
[0033] Specifically, ensure the airtightness between the base plate 2 and the generator body 1 to prevent dust from entering the interior of the generator body 1 and ensure stability during use.
[0034] In this embodiment, there are multiple receiving cavities 4, and each of the multiple receiving cavities 4 is used in conjunction with the generator body 1.
[0035] Specifically, increase the water capacity to ensure the effectiveness and efficiency of steam generation.
[0036] In this embodiment, multiple scrapers 14 are provided, and the multiple scrapers 14 are distributed in a ring array on the surface of the rotating rod 13.
[0037] Specifically, this ensures the effectiveness and efficiency of cleaning scale inside the accommodating cavity 4.
[0038] In this implementation plan: a steam outlet 8 is installed at the top of the steam-water separator 7.
[0039] Specifically, it facilitates the discharge and utilization of the generated steam.
[0040] In this implementation scheme: the microcontroller 11 is an existing structure, and the control circuit can be implemented by those skilled in the art through simple programming. It is common knowledge in the field, and it is only used without modification. Therefore, the control method and circuit connection will not be described in detail.
[0041] Working principle: During use, the water pump replenishes water to the receiving cavity 4 through the inlet pipe 5. The start and stop of the water pump are determined by the water level displayed on the water level gauge 9. After there is enough water in the receiving cavity 4, a high-frequency power supply is applied to the electromagnetic induction coil 3. The electromagnetic induction coil 3 directly heats the water in the receiving cavity 4 through electromagnetic induction. The steam-water mixture generated in the receiving cavity 4 after heating enters the steam-water separator 7 through the steam-water connecting pipe 6 for separation. The separated steam is discharged through the steam outlet 8, and the separated water flows back into the receiving cavity 4 through the return pipe 10. Heating continues, with the drive motor 12 driving the rotating rod 13 to rotate. The rotation of the rotating rod 13 causes the scraper 14 to rotate as well, which can clean the scale on the inner wall of the receiving cavity 4. The cleaned scale is discharged with water through the water inlet pipe 5, avoiding the problem of scale accumulation on the inner wall of the receiving cavity 4 after long-term use, which leads to a reduction in internal space. It is highly practical and worth promoting. The design is ingenious, with a detachable base plate 2 that is threadedly connected to the generator body 1. This allows for easy removal of the base plate 2 to inspect and maintain the internal components of the generator.
[0042] It should be noted that the model specifications of the microcontroller 11, the drive motor 12, and the electromagnetic induction coil 3 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.
[0043] The power supply and working principle of the microcontroller 11, the drive motor 12, and the electromagnetic induction coil 3 are clear to those skilled in the art and will not be described in detail here.
[0044] It is worth noting that the microcontroller 11 disclosed in the above embodiments can be an MCS-51, and the drive motor 12 can be a Y80M1-2, both of which are commercially available.
[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A direct current electrically heated steam generator comprising a generator body (1), characterised in that, The inner wall of the generator body (1) is provided with an electromagnetic induction coil (3). The surface of the generator body (1) is provided with a receiving cavity (4), and a rotating rod (13) is rotatably connected inside the receiving cavity (4). A scraper (14) is detachably installed on the surface of the rotating rod (13), and the surface of the scraper (14) is in contact with the inner wall of the receiving cavity (4). A drive motor (12) is fixedly installed on the top surface of the generator body (1), and the output end of the drive motor (12) is connected to one end of the rotating rod (13) through a heat insulation component. A steam-water separator (7) is connected to one side of the generator body (1) through a steam-water connecting pipe (6), and the lower end of the steam-water separator (7) is connected to the receiving cavity (4) through a return pipe (10). A water level gauge (9) is provided between the steam-water separator (7) and the return pipe (10). A base plate (2) is threadedly connected to the lower end of the generator body (1).
2. A direct current electrically heated steam generator according to claim 1, characterised in that, A water inlet pipe (5) is provided below the surface of the generator body (1), and the water inlet pipe (5) is connected to the receiving cavity (4).
3. A direct current electrically heated steam generator according to claim 1, wherein, A microcontroller (11) is fixedly installed on the outer wall of the generator body (1), and the microcontroller (11) is electrically connected to the drive motor (12) and the electromagnetic induction coil (3) through wires.
4. A direct current electrically heated steam generator as claimed in claim 1, wherein, A sealing ring is provided between the base plate (2) and the generator body (1).
5. A direct current electrically heated steam generator as claimed in claim 1, wherein, The receiving cavity (4) is provided in multiple ways, and all of the receiving cavities (4) are used in conjunction with the generator body (1).
6. A direct current electrically heated steam generator according to claim 1, wherein, The scraper (14) is provided in multiple ways, and the multiple scrapers (14) are arranged in a ring array on the surface of the rotating rod (13).
7. A direct current electrically heated steam generator as claimed in claim 1, wherein, The steam-water separator (7) is equipped with a steam outlet (8) at its top.