CN112539556A - Gram-level micro airflow high-temperature-rise heater and heating structure with same - Google Patents
Gram-level micro airflow high-temperature-rise heater and heating structure with same Download PDFInfo
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- CN112539556A CN112539556A CN202011382966.8A CN202011382966A CN112539556A CN 112539556 A CN112539556 A CN 112539556A CN 202011382966 A CN202011382966 A CN 202011382966A CN 112539556 A CN112539556 A CN 112539556A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0057—Guiding means
- F24H9/0063—Guiding means in air channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0073—Arrangement or mounting of means for forcing the circulation of air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/025—Details with respect to the testing of engines or engine parts
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Induction Heating (AREA)
Abstract
The application belongs to the field of gas heaters, and particularly relates to a gram-level micro airflow high-temperature-rise heater and a heating structure with the same. The gram-scale micro-airflow high-temperature-rise heater comprises: the device comprises a speed-increasing guide tube, a soaking body cavity-penetrating seat, a soaking body, a skin effect body, an electromagnetic induction coil and a programmable controller. The speed-increasing guide pipe is provided with a mounting groove and a mounting hole; the soaking body cavity penetrating seat is fixed on the speed-increasing guide pipe, and the through hole of the soaking body cavity penetrating seat is communicated with the mounting hole; the pressing platform part of the soaking body is in a pointed cone shape, the pressing platform part is installed in the installation groove, the pressing platform part penetrates out of the through hole of the soaking body cavity penetrating seat, one end of the threaded rod part is connected with the pressing platform part, and the other end of the threaded rod part is provided with a temperature feedback thermocouple; the skin effect body is arranged on the threaded rod part; the electromagnetic induction coil is sleeved on the skin effect body and is provided with a medium-frequency electromagnetic induction device; the programmable controller can control the electromagnetic oscillation intensity of the medium-frequency electromagnetic induction device according to the temperature feedback thermocouple signal.
Description
Technical Field
The application belongs to the field of gas heaters, and particularly relates to a gram-level micro airflow high-temperature-rise heater and a heating structure with the same.
Background
In the forward design of the aero-engine, the gas leakage amount of the internal 'rotating-static' system, the 'rotating-rotating' system and the external pipeline connecting part of the engine deviating from the design can be mastered, so that a designer can be effectively supported to investigate major faults of the aero-engine or optimize the thrust performance, for example: due to the complexity of the composition of an aircraft engine system, the high-temperature gas leakage amount caused by the inconsistent heating of some connecting parts or the inconsistent heating of different parts of a specific part can cause the inconsistent deformation, and even if the high-temperature gas leakage at the parts is small to gram level, the high-temperature gas leakage at the parts can cause the coking of the aircraft lubricating oil and even the ignition of the aircraft kerosene in the long-time operation; due to the cooling requirement, the air consumption can be reduced as much as possible on the premise that the cooling requirement can be met by accurately controlling the leakage amount at some parts, so that the influence on the high thrust ratio performance of the engine is reduced as much as possible.
At present, the mature heating equipment products in the market are not suitable for gram-level micro-air heating, such as: when resistance wires, electric heating tubes or silicon carbide rods and other elements which are placed in a pressure container with openings at two ends are used as heating bodies to carry out gas heating and a heat exchange method of a two-phase medium or a multi-phase medium, in order to overcome the problem of quasi stagnation of flow of gram-grade micro gas near a hot wall caused by a boundary layer, the heater body structure is designed into an ultra-small-caliber long heat exchange path, and under the condition, the field installation space requirement of a straight-through structure and the maintainability problem of the electric heating elements of a return structure cannot well take account of the economical efficiency; the combustion method is used for heating the tiny airflow, and the method is not only low in economical efficiency, but also related to the problem of medium pollution of clean air, and obviously not applicable; in addition, in addition to the above idea of directly heating the gram-level micro air flow, the problem is also encountered when the test is performed by firstly heating with large air volume and then using the micro air path branch, and when the test gas is measured by using the difference between the total amount of the inlet gas and the amount of the cooled redundant gas in the normal temperature environment in which the flow meter works in the best service life, the gram-level micro air flow used for measurement often has a negative value due to the problem of the tolerance zone of the meter, and when the high-temperature gram-level micro air flow is measured, a micro high-temperature flow meter with relatively high cost is used, so that the economy is not good.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The utility model aims at providing a gram level minute air current high temperature rise heater and have its heating structure to solve at least one problem that prior art exists.
The technical scheme of the application is as follows:
a first aspect of the present application provides a gram-sized micro-flow high temperature rise heater comprising:
the inner wall of the speed-increasing guide pipe is provided with a mounting groove, and a pipe wall corresponding to the mounting groove is provided with a mounting hole;
the heat equalizing body cavity penetrating seat is fixed on the outer side of the pipe wall of the speed-increasing guide pipe, a through hole is formed in the heat equalizing body cavity penetrating seat, and the through hole is communicated with the mounting hole of the speed-increasing guide pipe;
the soaking body comprises a pressing platform part and a threaded rod part, the pressing platform part is in a pointed cone shape, an airflow channel is formed in the pressing platform part, the pressing platform part is installed in an installation groove of the speed-increasing guide pipe, the conical head corresponds to the incoming flow direction, one end of the pressing platform part penetrates out of a through hole of the soaking body cavity penetrating seat, one end of the threaded rod part is in threaded connection with the penetrating part of the pressing platform part, and the other end of the threaded rod part is provided with a temperature feedback thermocouple;
the skin effect body is provided with internal threads and is installed on the threaded rod part in a threaded fit manner;
the electromagnetic induction coil is sleeved on the skin effect body and is provided with a medium-frequency electromagnetic induction device;
and the programmable controller can control the electromagnetic oscillation intensity of the medium-frequency electromagnetic induction device according to the received temperature feedback thermocouple signal.
Optionally, a high-pressure air inlet flange is welded at the air inlet end of the speed-increasing guide pipe, and a high-pressure air outlet flange is welded at the air outlet end of the speed-increasing guide pipe.
Optionally, the speed increasing guide tube is composed of a lower half part and an upper half part which are welded through a stitch welding.
Optionally, the soaking seat is fixed on the outer side of the tube wall of the speed-increasing guide tube by welding.
Optionally, the heat-insulating device further comprises a compression nut, and the threaded rod part of the heat-insulating body is tightly pressed by the compression nut after being in threaded connection with the pressing table part.
Optionally, the speed-increasing guide tube further comprises a heat-equalizing body bearing member, wherein the heat-equalizing body bearing member is attached to the rear side of the pressing table portion of the heat-equalizing body and used for ensuring that the wheel rim portion of the pressing table portion is correctly assembled in the inner wall installation groove of the speed-increasing guide tube.
Optionally, a plurality of air flow channels are formed in the platen portion, and the air flow channels are all threaded hole channels.
A second aspect of the present application provides a heating structure having a gram-class minute airflow high temperature rise heater, based on the gram-class minute airflow high temperature rise heater as described above, including: the device comprises a gas medium inlet section, a heating section and an air flow physical property parameter testing section which are sequentially connected, wherein the heating section is provided with the micro air flow meter and the gram-level micro air flow high temperature rise heater, and the micro air flow meter is positioned at the upstream of the gram-level micro air flow high temperature rise heater.
The invention has at least the following beneficial technical effects:
according to the gram-level micro airflow high-temperature-rise heater, the gram-level micro airflow passes through the internal airflow channel of the pointed conical soaking body, so that the airflow speed can be effectively increased, and the airflow disturbance and the contact time with the soaking body are increased; the electromagnetic induction coil is matched with the skin effect body to realize heating, so that the electromagnetic oscillation energy is efficiently converted into the heat storage of the electromagnetic induction body, and the heat storage is continuously guided to a heating medium by the soaking body source; and a temperature feedback thermocouple is adopted to monitor the temperature of the soaking temperature, so that an automatic control loop is formed.
Drawings
FIG. 1 is a schematic view of a gram-scale micro-flow high temperature lift heater according to one embodiment of the present application;
fig. 2 is a schematic view of a heating structure of a high temperature rise heater with a gram-scale micro-flow according to an embodiment of the present application.
Wherein:
1-a high-pressure air inlet flange; 2-an electromagnetic induction coil; 3-a soaking body; 4-temperature feedback thermocouple; 5-skin effector; 6-a compression nut; 7-soaking body cavity penetrating seat; 8-a high-pressure air outlet flange; 9-soaking body bearing component; 10-speed increasing guide tube; 11-micro air flow meter; 12-medium frequency electromagnetic induction means; 13-medium frequency induction electrode.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1-2.
The first aspect of the present application provides a gram-class micro-airflow high temperature rise heater, comprising: the device comprises a speed-increasing guide tube 10, a soaking body cavity-penetrating seat 7, a soaking body 3, a skin effect body 5, an electromagnetic induction coil 2 and a programmable controller.
Specifically, as shown in fig. 1, an installation groove is formed in the inner wall of the speed-increasing guide tube 10, an installation hole is formed in a tube wall corresponding to the installation groove, the soaking body cavity penetrating seat 7 is fixed to the outer side of the tube wall of the speed-increasing guide tube 10, a through hole is formed in the soaking body cavity penetrating seat 7, and the through hole is communicated with the installation hole of the speed-increasing guide tube 10. Advantageously, in this embodiment, the high-pressure air inlet flange 1 is welded to the air inlet end of the speed-increasing guide pipe 10, and the high-pressure air outlet flange 8 is welded to the air outlet end and is used for being connected to other pipelines. In addition, the speed-increasing guide tube 10 can be formed by welding the lower half part and the upper half part through a stitch, and the soaking body cavity penetrating seat 7 is fixed on the outer side of the tube wall of the speed-increasing guide tube 10 through welding.
Further, the soaking body 3 includes a pressing platform part and a threaded rod part, the pressing platform part is a pointed cone, an airflow channel is provided thereon, a plurality of airflow channels are preferably provided, and the airflow channel is a threaded hole channel, so that the airflow guided into the acceleration guide pipe 10 from the outside is stranded through the pressing platform part, and the spiral penetrates through the pointed cone-shaped high-temperature soaking body 3, the contact surface of the increased gas and the threaded hole channel, the pressing platform part is installed in the installation groove of the acceleration guide pipe 10, and the conical head corresponds to the incoming flow direction, one end of the pressing platform part is penetrated out through the through hole of the soaking cavity seat 7 by the soaking body, one end of the threaded rod part is connected with the pressing platform part through a part of threads, and the other end of the threaded rod part is provided with a temperature. Advantageously, in this embodiment, a compression nut 6 is further included, and after the threaded shank of the soaking body 3 is screwed into the boss portion, it is compressed by the compression nut 6. In this embodiment, a soaking body bearing member 9 is further provided, the soaking body bearing member 9 is attached to the rear side of the pressing table portion of the soaking body 3, after the pressing table portion of the soaking body 3 is combined with the soaking body bearing member 9, the rim is simultaneously installed in the inner wall installation groove of the lower half portion of the speed-increasing guide pipe 10, it is ensured that the rim portion of the pressing table portion is correctly assembled in place, and then the lower half portion and the upper half portion of the speed-increasing guide pipe 10 are welded into a whole through a seam.
Further, the skin effect body 5 is tubular and provided with internal threads, and the skin effect body 5 is installed on the threaded rod part of the soaking body 3 in a threaded fit manner, so that the soaking body 3 and the electromagnetic inductor are coaxial and tightly connected; the electromagnetic induction coil 2 is of a spiral hollow structure, is sleeved on the skin effect body 5, is not in physical contact with the skin effect body 5, is uniformly circumferentially spaced, two ends of the electromagnetic induction coil 2 are respectively connected with the medium-frequency induction electrode 13 of the medium-frequency electromagnetic induction device 12, and the programmable controller can control the electromagnetic oscillation intensity of the medium-frequency electromagnetic induction device 12 according to the received temperature feedback thermocouple 4 signal.
Based on the gram-class micro airflow high temperature rise heater, the second aspect of the present application provides a heating structure having the gram-class micro airflow high temperature rise heater, including: the device comprises a gas medium inlet section I, a heating section and a gas flow physical property parameter testing section III which are sequentially connected, wherein the heating section is provided with a micro gas flow meter 11 and a gram-level micro gas flow high temperature rise heater II, and the micro gas flow meter 11 is positioned at the upstream of the gram-level micro gas flow high temperature rise heater II.
According to the gram-level micro airflow high-temperature-rise heater and the heating structure with the same, after entering the speed-increasing guide pipe 10, the gram-level micro airflow is divided into a plurality of airflows through the pointed conical pressing table part and passes through the inside of the pointed conical high-temperature heat-homogenizing body 3 in a spiral mode to achieve the purpose of effectively increasing the temperature; the heat equalizer 3 is closely connected with the skin effect body 5, the skin effect body 5 is used as an electromagnetic inductor, the heat source of the electromagnetic inductor is provided by the skin effect of medium-frequency electromagnetic oscillation, and the programmable controller controls the electromagnetic oscillation intensity of the medium-frequency electromagnetic induction device 12 according to the signal of the temperature feedback thermocouple 4 arranged at the end part of the heat equalizer 3. The temperature feedback thermocouple 4 arranged at the end part of the heat equalizer 3 forms closed-loop comparison with the preset temperature value of the programmable controller, and controls the electromagnetic oscillation intensity by the medium-frequency electromagnetic oscillation to enable the skin effect body 5 to reach the preset temperature.
According to the gram-level micro airflow high-temperature-rise heater and the heating structure with the same, the gram-level micro airflow is divided into a plurality of airflows and spirally passes through the inside of the pointed conical high-temperature soaking body, the airflow speed can be effectively increased, the airflow disturbance and the contact time with the soaking body are increased, and the problem that the high-temperature rise and the temperature rise of the gram-level micro airflow are difficult is solved; the electromagnetic inductor and the soaking body are coaxially arranged and tightly connected, so that the problem that the heating effect of a common soaking body material under the skin effect is limited and the problem that the heat conductivity of a common electromagnetic induction material is poor can be effectively avoided, the medium-frequency electromagnetic oscillation energy is efficiently converted into the heat storage of the electromagnetic inductor, and the soaking body source continuously guides a heating medium; the soaking body temperature is monitored by adopting the temperature feedback thermocouple, the soaking body temperature can be effectively fused with a general industrial-grade closed-loop control system, an automatic control loop can be conveniently formed, and the system can automatically run only by inputting preset values; in addition, the temperature feedback thermocouple value can also be used as a safety operation monitoring value of the soaking body, when the safety threshold value is added for judgment, the operation can be automatically carried out under the safety threshold value, the operation is automatically stopped above the safety threshold value, and the operation is convenient and fast; the application still can realize that the gas flow cold junction is measured, sets up small air current measuring instrument at the inlet end that does not heat, only need select for use the high accuracy flow meter of normal atmospheric temperature can, solved the small accurate measurement problem of flow of high temperature gram level.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A gram-class micro-airflow high-temperature-rise heater is characterized by comprising:
the device comprises a speed-increasing guide pipe (10), wherein the inner wall of the speed-increasing guide pipe (10) is provided with a mounting groove, and a pipe wall corresponding to the mounting groove is provided with a mounting hole;
the heat equalizing body cavity penetrating seat (7) is fixed on the outer side of the pipe wall of the speed increasing guide pipe (10), a through hole is formed in the heat equalizing body cavity penetrating seat (7), and the through hole is communicated with the mounting hole of the speed increasing guide pipe (10);
the heat equalizing body (3) comprises a pressing platform part and a threaded rod part, the pressing platform part is in a pointed cone shape, an airflow channel is formed in the pressing platform part, the pressing platform part is installed in an installation groove of the speed-increasing guide pipe (10), the conical head corresponds to the incoming flow direction, one end of the pressing platform part penetrates out of a through hole of the heat equalizing body cavity penetrating seat (7), one end of the threaded rod part is in threaded connection with the penetrating part of the pressing platform part, and the other end of the threaded rod part is provided with a temperature feedback thermocouple (4);
the skin effect body (5), the skin effect body (5) is provided with internal threads, and the skin effect body (5) is installed on the threaded rod part in a threaded fit mode;
the electromagnetic induction coil (2) is sleeved on the skin effect body (5), and the electromagnetic induction coil (2) is provided with a medium-frequency electromagnetic induction device (12);
a programmable controller capable of controlling the electromagnetic oscillation intensity of the medium frequency electromagnetic induction device (12) according to the received temperature feedback thermocouple (4) signal.
2. The gram-scale micro-airflow high-temperature-rise heater as claimed in claim 1, wherein a high-pressure air inlet flange (1) is welded at an air inlet end of the speed-increasing guide pipe (10), and a high-pressure air outlet flange (8) is welded at an air outlet end of the speed-increasing guide pipe.
3. The gram-size micro airflow high temperature rise heater according to claim 2, wherein the speed-increasing guide tube (10) is composed of a lower half part and an upper half part which are welded by a stitch welding.
4. The gram-scale micro-airflow high-temperature-rise heater as claimed in claim 1, wherein the soaking seat (7) is fixed on the outer side of the tube wall of the speed-increasing guide tube (10) by welding.
5. The gram-scale micro-airflow high-temperature-rise heater according to claim 1, further comprising a compression nut (6), wherein the threaded rod part of the soaking body (3) is connected with the pressing platform part in a threaded manner and then is compressed by the compression nut (6).
6. The gram-class micro-airflow high-temperature-rise heater as claimed in claim 1, further comprising a soaking body bearing member (9), wherein the soaking body bearing member (9) is attached to the rear side of the platen part of the soaking body (3) for ensuring that the rim part of the platen part is correctly assembled in the inner wall installation groove of the speed-increasing guide pipe (10).
7. The gram-scale micro-airflow high-temperature-rise heater according to claim 1, wherein a plurality of airflow channels are opened on the pressing platform part, and the airflow channels are all threaded hole channels.
8. A heating structure having a gram-class minute airflow high temperature rise heater according to any one of claims 1 to 7, comprising: the device comprises a gas medium inlet section, a heating section and an air flow physical property parameter testing section which are sequentially connected, wherein the heating section is provided with the micro air flow meter and the gram-level micro air flow high temperature rise heater, and the micro air flow meter is positioned at the upstream of the gram-level micro air flow high temperature rise heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382966.8A CN112539556B (en) | 2020-12-01 | 2020-12-01 | Gram-level micro airflow high-temperature-rise heater and heating structure with same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011382966.8A CN112539556B (en) | 2020-12-01 | 2020-12-01 | Gram-level micro airflow high-temperature-rise heater and heating structure with same |
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| CN112539556A true CN112539556A (en) | 2021-03-23 |
| CN112539556B CN112539556B (en) | 2022-04-01 |
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| CN109714850A (en) * | 2018-12-19 | 2019-05-03 | 西安航天动力研究所 | It is a kind of for generating the high efficiency method of clean high temperature air |
| CN209512271U (en) * | 2019-02-13 | 2019-10-18 | 深圳热鑫能源科技有限公司 | A kind of fever core assembly of electromagnetism hot water machine |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2114092A1 (en) * | 1993-02-02 | 1994-08-03 | Akikazu Nara | Heating Apparatus Utilizing Microwaves |
| CN1232158A (en) * | 1997-12-31 | 1999-10-20 | 大宇通信株式会社 | Electric heating device used in forming optical fiber preform |
| CN101557066A (en) * | 2009-05-22 | 2009-10-14 | 中国电子科技集团公司第三十八研究所 | High-frequency induction brazing method for connection of deep cavity inner conductor of coaxial transmission line |
| CN103032956A (en) * | 2011-09-28 | 2013-04-10 | 朱红勇 | Induction heating air heater |
| WO2013113513A2 (en) * | 2012-02-03 | 2013-08-08 | Exonda Salon Tools Gmbh | Apparatus and method for generating a hot-air stream |
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| CN109714850A (en) * | 2018-12-19 | 2019-05-03 | 西安航天动力研究所 | It is a kind of for generating the high efficiency method of clean high temperature air |
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| CN112539556B (en) | 2022-04-01 |
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