An overheat water vapor generator based on ultrasonic atomization
By combining ultrasonic atomization and porous channel heating, the safety hazards and high costs of high-temperature and high-pressure steam production are solved, and efficient and safe small-scale superheated steam generation under normal pressure is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RIXINYIKANG TECH SHENZHEN
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-12
AI Technical Summary
Current technologies require large equipment and specialized operation to generate high-temperature, high-pressure steam, which poses safety hazards and is costly.
The device uses an ultrasonic atomizer to atomize water and heats it through a porous channel to generate superheated steam. It operates at atmospheric pressure, thus avoiding the use of high-pressure containers.
It enables rapid generation of superheated steam under normal pressure, reducing equipment costs and safety risks, and is suitable for small household and medical devices.
Smart Images
Figure CN224352969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of superheated steam production equipment, and in particular to a superheated steam generator based on ultrasonic atomization. Background Technology
[0002] Superheated steam can be used in industries such as drying, food processing, and sterilization. Currently, superheated steam generating equipment is generally large-scale equipment. If small electrical appliances such as humidifiers and cooking machines use superheated steam, they need to adopt the pressurized high-temperature steam method used in large-scale equipment. This involves boiling water under pressure above atmospheric pressure to generate high-temperature steam (superheated steam) at temperatures above 100°C, or reheating saturated steam to become superheated steam. This superheated steam is then used in steam equipment for humidification, cooking, etc.
[0003] Current technology requires pressure vessels with pressure resistance to generate high-temperature and high-pressure steam. These vessels need to be operated and maintained by technicians with professional knowledge and qualifications. However, pressure vessels also pose an explosion risk and safety hazard.
[0004] Therefore, existing technologies need to be improved. Utility Model Content
[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a superheated steam generator based on ultrasonic atomization, which aims to generate superheated steam at normal pressure.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A superheated steam generator based on ultrasonic atomization includes a container with one end open, an ultrasonic atomizer disposed inside the container, and a mist heater disposed at the open end of the container, wherein the mist heater is in communication with the outside atmosphere.
[0008] The ultrasonic atomizer atomizes the raw water added to the container and produces mist.
[0009] The mist heater is provided with a porous channel and a heating element covering the outer wall of the porous channel. The mist in the container enters the porous channel, is heated and turns into superheated steam and is discharged.
[0010] In some embodiments, a temperature control device is also included, which is electrically connected to the heating element and is used to control the temperature of the discharged superheated steam to be greater than 250 degrees.
[0011] In some embodiments, the porous channel is formed by axially machining multiple holes from a single metal rod.
[0012] In some embodiments, the porous channel is composed of multiple metal tubes bundled together.
[0013] In some embodiments, the porous channel is formed from an extruded porous profile.
[0014] In some embodiments, in the vertical cross-section of the length direction of the porous channel, the maximum length of the line segment connecting any two points within the cross-sectional shape of a single hole is less than 2 mm.
[0015] In some embodiments, the container includes a lower atomizing chamber and an upper mist chamber, the ultrasonic atomizer is located in the atomizing chamber, and the mist chamber is in communication with the mist heater.
[0016] It should be understood that, within the scope of this utility model, the above-mentioned technical features of this utility model and the technical features specifically described below (such as embodiments) can be combined with each other to form new or preferred technical solutions. Due to space limitations, they will not be described in detail here.
[0017] The beneficial effects of this utility model are:
[0018] 1. Using an ultrasonic atomizer to atomize water and then heating the atomized water rapidly generates superheated steam, resulting in high efficiency. This eliminates the need for waiting for saturated steam to form in a boiler, as is done in existing technologies, before further heating.
[0019] 2. The mist heater is directly connected to the outside atmosphere, and the working pressure inside the entire device is close to the external air pressure. That is, this device can generate superheated steam at normal pressure. It does not require the use of traditional pressure vessels or special equipment for handling high-pressure gases, which reduces costs and eliminates the risk of explosion, making it highly safe. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of a superheated steam generator based on ultrasonic atomization according to Embodiment 1 of this utility model.
[0022] Figure 2 This is a cross-sectional schematic diagram of the first embodiment of the multi-hole channel of this utility model.
[0023] Figure 3This is a cross-sectional schematic diagram of the second embodiment of the porous channel of this utility model.
[0024] Figure label:
[0025] 100-Steam generator, 1-Container, 11-Open end, 12-Atomization chamber, 13-Mist chamber, 2-Ultrasonic atomizer, 3-Mist heater, 31-Porous channel, 311-Single hole, 32-Heating element, 4-Temperature control device, 5-Temperature sensor, 6-Wire, 7-Ultrasonic controller, 200-Mist. Detailed Implementation
[0026] 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.
[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; 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 the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.
[0030] In this specification, atmospheric pressure refers to "the pressure without special depressurization or pressurization, which is usually within the range of one atmosphere above or below atmospheric pressure".
[0031] The present invention includes the following embodiments.
[0032] Please refer to Figure 1 This embodiment provides a superheated steam generator 100 based on ultrasonic atomization, including a container 1 open at one end, an ultrasonic atomizer 2 disposed within the container 1, and a mist heater 3 disposed at the container opening 11, wherein the mist heater 3 is in communication with the outside atmosphere. The container 1 can be made of materials such as glass, plastic, or metal. As one implementation method, such as... Figure 1 As shown, container 1 is open at the top and closed at the bottom, with a mist heater 3 installed at the open end 11. The connection between container 1 and mist heater 3 can be detachable, allowing raw water to be added from the open end 11. In other embodiments, container 1 can have a separate water inlet for adding raw water, which can be done manually or automatically. The raw water can be tap water or purified water. In this embodiment, container 1 has a tubular structure; in other embodiments, container 1 can have other shapes.
[0033] In this embodiment, the ultrasonic atomizer 2 atomizes the raw water added to the container 1 and generates mist; the mist heater 3 is provided with a porous channel 31 and a heating element 32 covering the outer wall of the porous channel 31. The mist in the container 1 enters the porous channel 31, is heated and becomes superheated steam and is discharged.
[0034] In this embodiment, the ultrasonic atomizer 2 is electrically connected to the ultrasonic controller 7 via wires. The ultrasonic controller 7 controls the opening and closing of the ultrasonic atomizer 2 and adjusts its power. After being powered on, the ultrasonic atomizer 2 generates ultrasonic waves. The high-frequency vibration energy of the ultrasonic waves disperses the liquid water molecules in the container 1 into micron-sized water mist, thus generating mist 200 in the container 1. When the mist, i.e., the atomized tiny water molecules, passes through the porous channel 31 of the mist heater 3, it is heated by the heating element 32 in the mist heater 3. At this time, the atomized droplets can completely evaporate within milliseconds, directly forming gaseous molecular groups without passing through a liquid phase coexistence state. After the gaseous molecules continue to absorb heat in the mist heater 3, they enter a superheated state and directly form superheated steam. The superheated steam generator 100 of this invention uses a combination of ultrasonic atomization and heating to physically eliminate the necessary condition for the formation of saturated steam, namely "the continuous existence of the liquid phase." This allows water molecules to directly transition from the liquid to the gaseous state in a very short time. Subsequent heat absorption leads to a superheated state. Since there is no liquid phase residue, the steam molecules quickly break through the saturation temperature limit and directly form superheated steam.
[0035] Meanwhile, since the mist heater 3 of this invention is connected to the external atmospheric environment, the superheated steam generated by the mist heater 3 is discharged to the outside under the external air pressure, thus becoming atmospheric pressure superheated steam. Furthermore, since the mist heater 3 is connected to the inside of container 1 through the opening end 11, container 1 is indirectly connected to the atmosphere, so the pressure inside container 1 is not significantly different from the external air pressure. Therefore, the superheated steam generator 100 based on ultrasonic atomization of this invention operates at a pressure essentially the same as the external air pressure, eliminating the need for complex devices such as traditional pressure vessels that could potentially explode under high pressure. Therefore, the generator 100 of this embodiment has a simple structure and can safely generate superheated steam at atmospheric pressure.
[0036] The superheated steam generated by the mist heater 3 of this invention can be discharged and used in various scenarios, such as air humidification, cooking, and medical disinfection.
[0037] Because the mist heater 3 of this invention has a porous channel 31, the mist generated from the container 1 enters the mist heater 3 and then enters the porous channel 31. It is divided into multiple streams by the multiple single tubes within the porous channel 31, and each stream is heated by the wall of its respective single tube. Unlike the existing technology with only a single tube structure, the mist in this embodiment of the invention significantly increases the contact area of the channel wall after entering the porous channel 31, thus greatly increasing the heating area of the mist within the mist heater 3. Therefore, it can heat the mist more efficiently and quickly to rapidly generate superheated steam. Preferably, the porous channel 31 in the mist heater 3 of this embodiment is made of aluminum alloy, which has good thermal conductivity. As one embodiment of this invention, the heating element 32 is one or more heating wires surrounding the porous channel 31.
[0038] In this embodiment, as Figure 1 As shown, the steam generator 100 also includes a temperature control device 4, which is electrically connected to the heating element 32 and is used to control the temperature of the discharged superheated steam to be greater than 250 degrees Celsius. The heating element 32 is connected to the temperature control device 4 via a wire 6. The temperature control device 4 may include a microcontroller, power circuitry, etc.
[0039] In this embodiment, the steam generator 100 further includes a temperature sensor 5, which is electrically connected to the temperature control device 4 via a wire 6. In this embodiment, the temperature sensor 5 is installed on the wall surface of the outer diameter of the porous channel 31. The temperature sensor 5 collects the temperature of the outer wall of the porous channel 31 and feeds it back to the temperature control device 4. The temperature control device 4 then controls the heating power of the heating element 32 based on this temperature value, thereby controlling the heating temperature of the porous channel 31 by the heating element 32, so that the temperature of the superheated steam discharged from the mist heater 3 reaches a predetermined temperature, such as 250°C or higher. Preferably, the temperature control device 4 controls the temperature of the discharged superheated steam to be above 350°C, which completely avoids the condensation of the discharged superheated steam in the air, thus preventing the white mist from adhering to furniture or equipment and causing mold growth.
[0040] In one embodiment, the porous channel 31 of the mist heater 3 of this invention is formed by machining multiple holes axially from a single metal rod. That is, it is formed by opening multiple axial channels in a single metal rod.
[0041] As another way, such as Figure 2 As shown, the porous channel 31 of the mist heater 3 of this utility model is composed of multiple metal tubes bundled together. An electric heating wire is wound around the outer wall of the integral structure composed of multiple metal tubes. The heating wire heats the wall of each metal tube, so that the mist inside each tube can be heated individually after mist is introduced into each metal tube. The porous channel 31 made of multiple metal tubes has a simple structure and is easy to manufacture. The metal tubes can be circular or rectangular.
[0042] As another way, such as Figure 3 As shown, the porous channel 31 of the mist heater 3 of this utility model is formed by extrusion molding of a porous profile. That is, the porous channel 31 with multiple cavities is formed by extrusion molding of the profile, which can be used to mass-produce the porous channel 31 quickly.
[0043] In this utility model, such as Figures 2 to 3 As shown, in the vertical cross-section along the length of the porous channel 31, the cross-sectional shape of a single hole 311 is a circular hole, a square hole, or a hexagonal hole.
[0044] Preferably, in the vertical cross-section along the length direction of the porous channel 31 of the mist heater 3 of this invention, the maximum value of the line segment length connecting any two points within the cross-sectional shape of a single hole is less than 2 mm. That is, as shown... Figures 2 to 3As shown, when the cross-sectional shape of a single hole 311 in the porous channel 31 is circular, the inner diameter of a single hole does not exceed 2 mm; when the cross-sectional shape of a single hole 311 in the porous channel 31 is a regular square or a regular hexagon, the diagonal length does not exceed 2 mm. This allows the porous channel 31 of the same cross-sectional area to have more single holes 311, thereby increasing the contact area of individual tiny droplets in the mist, greatly increasing the heating area, and thus enabling it to quickly vaporize into superheated steam.
[0045] The mist heater 3 of this embodiment has a simple structure. It uses a porous channel 31 wrapped with an electric heating wire as the heating element 32, allowing for a larger heat source contact surface for the mist and more efficient generation of superheated steam. It is also relatively easy to manufacture. To ensure sufficient heat transfer from the inner circumference of the pipe to the mist within the pipe during a very short residence time, the surface area of the mist in contact with the inner circumference of the pipe must be increased. Therefore, using a porous channel 31 to increase the contact area of the mist is the most efficient and preferred method in this embodiment.
[0046] Alternatively, the interior of the mist heater 3 can also have a honeycomb structure.
[0047] Please continue to refer to this. Figure 1 The superheated steam generator 100 of this invention includes a lower atomizing chamber 12 and an upper mist chamber 13 within its container 1. The ultrasonic atomizer is located in the atomizing chamber 12, and the mist chamber 13 is connected to the mist heater. The atomizing chamber 12 and the mist chamber 13 are separated, with the atomizing chamber 12 at the bottom and the mist chamber 13 at the top. This facilitates the separation of raw water and mist. Simultaneously, the mist chamber 13 provides sufficient space to hold a certain amount of mist after the raw water is atomized into water molecules, ensuring that the mist entering the mist heater 3 is heated in a stable and appropriate amount, thus stably generating superheated steam.
[0048] This invention relates to a superheated steam generator 100 based on ultrasonic atomization. By incorporating a container 1, an ultrasonic atomizer 2, and a mist heater 3, it generates superheated steam at atmospheric pressure. The operation process does not generate high pressure, eliminating the risk of explosion and eliminating the need for the high costs associated with traditional pressure vessels. It also eliminates the need for special equipment for handling high-pressure gases, significantly reducing usage and maintenance costs. Furthermore, the mist heater 3 features a porous channel 31, enabling the generation of highly efficient, high-temperature superheated steam. This ultrasonic atomization-based superheated steam generator 100 allows for miniaturization of the entire device, facilitating applications such as miniaturized household humidifiers, cooking equipment, and medical sterilization equipment, thus promoting commercial application.
[0049] The above description is merely an example to clearly illustrate the present utility model and is not intended to limit the patent scope of the present utility model. It is impossible to exhaustively list all the embodiments here. All equivalent structural transformations made using the content of the technical solution of the present utility model under the concept of the present utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A superheated steam generator based on ultrasonic atomization, characterized in that, It includes a container with one end open, an ultrasonic atomizer disposed inside the container, and a mist heater disposed at the opening end of the container, wherein the mist heater is in communication with the outside atmosphere; The ultrasonic atomizer atomizes the raw water added to the container and produces mist. The mist heater is provided with a porous channel and a heating element covering the outer wall of the porous channel. The mist in the container enters the porous channel, is heated and turns into superheated steam and is discharged.
2. The superheated steam generator based on ultrasonic atomization according to claim 1, characterized in that, It also includes a temperature control device, which is electrically connected to the heating element and is used to control the temperature of the discharged superheated steam to be greater than 250 degrees.
3. The superheated steam generator based on ultrasonic atomization according to claim 1, characterized in that, The porous channel is formed by machining multiple holes axially from a single metal rod.
4. The superheated steam generator based on ultrasonic atomization according to claim 1, characterized in that, The porous channel is composed of multiple metal tubes bundled together.
5. The superheated steam generator based on ultrasonic atomization according to claim 1, characterized in that, The porous channel is formed by extruding a porous profile.
6. The superheated steam generator based on ultrasonic atomization according to claim 1, characterized in that, In the vertical cross-section along the length of the porous channel, the maximum length of the line segment connecting any two points within the cross-sectional shape of a single hole is less than 2 mm.
7. The superheated steam generator based on ultrasonic atomization according to claim 1, characterized in that, The container includes a lower atomizing chamber and an upper mist chamber, with the ultrasonic atomizer located in the atomizing chamber and the mist chamber connected to the mist heater.