CN113112895A - Electromagnetic induction heating gas heat exchange experimental device - Google Patents
Electromagnetic induction heating gas heat exchange experimental device Download PDFInfo
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- CN113112895A CN113112895A CN202110420027.6A CN202110420027A CN113112895A CN 113112895 A CN113112895 A CN 113112895A CN 202110420027 A CN202110420027 A CN 202110420027A CN 113112895 A CN113112895 A CN 113112895A
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- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
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Abstract
The invention discloses an electromagnetic induction heating gas heat exchange experimental device, which comprises: a gas injection pipe; the device comprises a device main body, wherein an experiment pipe, a heat insulation layer and an induction coil are arranged in the device main body; one end of the experiment pipe is communicated with the gas injection pipe; the heat insulation layer is sleeved outside the experiment pipe; the induction coil is sleeved outside the heat insulation layer; the exhaust pipe is communicated with the other end of the experiment pipe; and the induction heating power supply is electrically connected with the induction coil. The experimental tube is heated in a non-contact induction mode through the induction coil, so that the phenomenon that the experimental tube is electrified is avoided, the safety of personnel is guaranteed, and the device is more stable in operation, more uniform in wall surface heat flow density, better in air tightness and higher in experimental precision.
Description
Technical Field
The invention relates to the technical field of energy and power, in particular to an electromagnetic induction heating gas heat exchange experimental device.
Background
Due to low density and good compressibility, the gas is commonly used in the energy power industry with special requirements, such as gas turbines and equipment, air-cooled aircraft engines, rocket engines, helium-cooled nuclear fusion reactor claddings, high-temperature gas-cooled reactors (helium, nitrogen, argon, carbon dioxide, helium-xenon mixed gas and the like), hydrogen-cooled nuclear thermal propulsion reactors, various gas heat exchangers and the like. The flowing heat exchange characteristics of the gas in these devices affect the operation performance and safety of these devices, so related experiments are needed to study the problem.
Because the density of gas is little, the experimental apparatus can leak because of reasons such as sealed not good, structural failure, etc. in long-term operation, and flammable explosive gas such as hydrogen especially can lead to the dangerous accident to take place. In addition, the heating mode in the prior art is mainly heating by adopting an electrified contact experiment tube, so that the phenomena of electrification and even electric leakage of the experiment tube are easy to occur, and potential safety hazards exist.
Therefore, it is one of the technical problems to be solved in the art to provide an ultra-high temperature gas experimental sealing device which can realize non-contact induction heating, and has stable operation, uniform wall surface heat flux density and better air tightness.
Disclosure of Invention
The invention provides an electromagnetic induction heating gas heat exchange experimental device. The purpose is to solve the above-mentioned deficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
an electromagnetic induction heating gas heat exchange experimental device comprises:
a gas injection pipe; the device comprises a device main body, wherein an experiment pipe, a heat insulation layer and an induction coil are arranged in the device main body; one end of the experiment pipe is communicated with the gas injection pipe; the heat insulation layer is sleeved outside the experiment pipe; the induction coil is sleeved outside the heat insulation layer; the exhaust pipe is communicated with the other end of the experiment pipe; and the induction heating power supply is electrically connected with the induction coil.
The beneficial effect of this technical scheme is: the induction coil is used for carrying out non-contact induction heating on the experimental tube, so that the phenomenon that the experimental tube is electrified is effectively avoided while the experimental tube is heated at ultrahigh temperature, and the safety of personnel is ensured.
Preferably, the distance between the induction coil and the experiment tube is 3-25 cm.
Preferably, the distance between the induction coil and the experiment tube is 8 cm.
Preferably, the gas injection pipe and the exhaust pipe are closely coupled to both ends of the apparatus body by flanges.
Preferably, a baffling channel is arranged inside the gas injection pipe.
The beneficial effect of this technical scheme is: the gas mixing is more uniform, and the length of the inlet segment of the experimental pipe is shortened as much as possible.
Preferably, the injected gas working medium is a mixed gas of hydrogen, helium, argon, nitrogen, carbon dioxide and helium-xenon.
Preferably, the exhaust pipe is a divergent pipe.
The beneficial effect of this technical scheme is: the gas is expanded to lower the temperature and reduce the gas flow rate.
Preferably, the experimental tube is a single-channel or multi-channel structure with a circular shape, a triangular shape, a quadrangular shape and a hexagonal shape.
Preferably, the material of the experimental tube is stainless steel, copper metal and alloy thereof, molybdenum metal and alloy thereof, tungsten metal and alloy thereof.
Preferably, the ratio of the length to the diameter of the experimental tube is 20-150.
Preferably, the length of the experiment tube is 20-120 cm, and the diameter of the experiment tube is 0.3-3 cm.
Preferably, the top end of the device main body is provided with a viewing window.
Preferably, the applicable temperature condition of the experimental sealing device is 100-2400 ℃.
Preferably, a vacuum is drawn inside the device body.
Compared with the prior art, the invention has the following technical effects:
gas can be uniformly conveyed into the experiment tube through the baffling pipeline, and the length of an inlet section of the experiment tube is shortened; the interior of the device main body is vacuumized, so that the heat insulation effect can be improved, and high-temperature oxidation can be avoided; the induction coil heats the experimental tube in a non-contact manner, so that the experimental tube is effectively prevented from being electrified; and finally, arranging the exhaust pipe as a gradually expanding pipe to expand the gas to reduce the temperature and reduce the speed of the gas flow.
Drawings
FIG. 1 is a schematic diagram of an external structure of an electromagnetic induction heating gas heat exchange experimental apparatus according to the present invention;
FIG. 2 is a schematic diagram of the internal structure and gas flow of an electromagnetic induction heating gas heat exchange experimental apparatus according to the present invention;
fig. 3 is a schematic diagram showing the cooperation of an experimental tube, a heat insulation layer and an induction coil of the electromagnetic induction heating gas heat exchange experimental device.
In the figure: 1. a gas injection pipe; 2. a device main body; 21. an experimental tube; 22. a thermal insulation layer; 23. an induction coil; 24. an observation window; 3. and (4) exhausting the gas.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments. 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 invention.
Example 1
Referring to fig. 1-3, an electromagnetic induction heating gas heat exchange experimental apparatus includes: a gas injection pipe 1; the device comprises a device body 2, wherein the inside of the device body 2 is vacuumized, and an experiment tube 21, a heat insulation layer 22 and an induction coil 23 are arranged inside the device body 2; one end of the experiment tube 21 is communicated with the gas injection tube 1; the heat insulation layer 22 is sleeved outside the experiment tube 21; the induction coil 23 is sleeved outside the heat insulation layer 22, the distance between the induction coil 23 and the experiment tube 21 is 3-25cm, and the optimal distance is 8 cm; an exhaust pipe 3, wherein the exhaust pipe 3 is communicated with the other end of the experiment pipe 21; and an induction heating power supply 4, wherein the induction heating power supply 4 is electrically connected with the induction coil 23.
In this embodiment, gas injection pipe 1 and blast pipe 3 pass through flange zonulae occludens in the both ends of device main part 2, and 1 insides of gas injection pipe are equipped with baffling passageway, and blast pipe 3 is the divergent pipe.
In this embodiment, the top end of the apparatus main body 2 is provided with an observation window 24.
In this embodiment, the bottom end of the apparatus main body 2 is hermetically connected to the induction heating power supply 4 through a flange.
In this embodiment, the experiment tube 21 has a single-channel or multi-channel structure of a circle, a triangle, a quadrangle, or a hexagon.
In this embodiment, the material of the experimental tube is stainless steel, copper metal and its alloy, molybdenum metal and its alloy, tungsten metal and its alloy.
In the embodiment, the ratio of the length to the diameter of the experimental tube is 20-150.
In other embodiments, the shape of the test tube 21 can be adjusted to the actual situation.
In other embodiments, the material of the test tube 21 can be adjusted as the case may be.
In other embodiments, the length of the test tube 21 is 20-120 cm, and the diameter is 0.3-3 cm.
Compared with the prior art, the invention has the following technical effects:
gas can be uniformly conveyed into the experiment tube through the baffling pipeline, and the length of an inlet section of the experiment tube is shortened; the interior of the device main body is vacuumized, so that the heat insulation effect can be improved, and high-temperature oxidation can be avoided; the induction coil heats the experimental tube in a non-contact manner, so that the experimental tube is effectively prevented from being electrified; and finally, arranging the exhaust pipe as a gradually expanding pipe to expand the gas to reduce the temperature and reduce the speed of the gas flow.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (8)
1. The utility model provides an electromagnetic induction heating gas heat transfer experimental apparatus which characterized in that includes:
a gas injection pipe (1);
the device comprises a device main body (2), wherein an experiment tube (21), a heat insulation layer (22) and an induction coil (23) are arranged in the device main body (2); one end of the experiment pipe (21) is communicated with the gas injection pipe (1); the heat insulation layer (22) is sleeved outside the experiment pipe (21); the induction coil (23) is sleeved outside the heat insulation layer (22);
the exhaust pipe (3), the exhaust pipe (3) is communicated with the other end of the experiment pipe (21);
an induction heating power supply (4), the induction heating power supply (4) being electrically connected with the induction coil (23).
2. The experimental apparatus for heat exchange of electromagnetic induction heated gas as claimed in claim 1, wherein the distance between the induction coil (23) and the experimental tube (21) is 3-25 cm.
3. The experimental apparatus for heat exchange of electromagnetic induction heated gas as claimed in claim 1, wherein the gas injection pipe (1) and the gas exhaust pipe (3) are tightly connected to both ends of the apparatus body (2) through flanges.
4. The experimental apparatus for heat exchange of electromagnetic induction heated gas as claimed in claim 1, wherein a baffling channel is provided inside the gas injection pipe (1).
5. The experimental apparatus for heat exchange of electromagnetic induction heating gas as claimed in claim 1, wherein the exhaust pipe (3) is a divergent pipe.
6. The electromagnetic induction heating gas heat exchange experimental device according to claim 1, wherein the ratio of the length to the diameter of the experimental tube (21) is 20-150.
7. The experimental device for heat exchange of electromagnetic induction heating gas as claimed in claim 1, wherein the top end of the device main body (2) is provided with an observation window (24).
8. The experimental apparatus for heat exchange of electromagnetic induction heating gas as claimed in claim 1, wherein the bottom end of the apparatus main body (2) is hermetically connected with the induction heating power supply (4) through a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110420027.6A CN113112895A (en) | 2021-04-19 | 2021-04-19 | Electromagnetic induction heating gas heat exchange experimental device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110420027.6A CN113112895A (en) | 2021-04-19 | 2021-04-19 | Electromagnetic induction heating gas heat exchange experimental device |
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| CN113112895A true CN113112895A (en) | 2021-07-13 |
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| CN202110420027.6A Pending CN113112895A (en) | 2021-04-19 | 2021-04-19 | Electromagnetic induction heating gas heat exchange experimental device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660765A (en) * | 2009-09-29 | 2010-03-03 | 哈尔滨工业大学 | Combined high-temperature air preheating device |
| CN101937622A (en) * | 2009-06-30 | 2011-01-05 | 上海外国语大学附属大境中学 | Multi-stage coil electromagnetic gun with push-suction secondary power |
| CN102748332A (en) * | 2012-06-28 | 2012-10-24 | 北京工业大学 | Pressure reducing device with temperature recovery function |
| CN104329972A (en) * | 2014-07-17 | 2015-02-04 | 江苏南通申通机械有限公司 | Baffling type heat pipe heat exchanger clapboard and evaporation end structure of heat pipe heat exchanger manufactured by clapboard |
| CN105135665A (en) * | 2015-09-16 | 2015-12-09 | 成都正升能源技术开发有限公司 | Liquid heater with heating element convenient to disassemble and assemble |
| KR20170114128A (en) * | 2016-04-04 | 2017-10-13 | 문화목 | Apparatus for measuring the temperature of the sun according to the height change of it |
| CN109147508A (en) * | 2018-09-17 | 2019-01-04 | 胡兴源 | One kind is expanded with heat and contract with cold and pyrocondensation cold expanding experimental demonstration device |
| CN109764698A (en) * | 2019-02-27 | 2019-05-17 | 浙江阿尔法化工科技有限公司 | Liquid nitrogen refrigerant heat exchanger and its application method |
| CN112533311A (en) * | 2020-12-11 | 2021-03-19 | 西安交通大学 | Electromagnetic induction heating device for obtaining high-temperature rare gas |
-
2021
- 2021-04-19 CN CN202110420027.6A patent/CN113112895A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937622A (en) * | 2009-06-30 | 2011-01-05 | 上海外国语大学附属大境中学 | Multi-stage coil electromagnetic gun with push-suction secondary power |
| CN101660765A (en) * | 2009-09-29 | 2010-03-03 | 哈尔滨工业大学 | Combined high-temperature air preheating device |
| CN102748332A (en) * | 2012-06-28 | 2012-10-24 | 北京工业大学 | Pressure reducing device with temperature recovery function |
| CN104329972A (en) * | 2014-07-17 | 2015-02-04 | 江苏南通申通机械有限公司 | Baffling type heat pipe heat exchanger clapboard and evaporation end structure of heat pipe heat exchanger manufactured by clapboard |
| CN105135665A (en) * | 2015-09-16 | 2015-12-09 | 成都正升能源技术开发有限公司 | Liquid heater with heating element convenient to disassemble and assemble |
| KR20170114128A (en) * | 2016-04-04 | 2017-10-13 | 문화목 | Apparatus for measuring the temperature of the sun according to the height change of it |
| CN109147508A (en) * | 2018-09-17 | 2019-01-04 | 胡兴源 | One kind is expanded with heat and contract with cold and pyrocondensation cold expanding experimental demonstration device |
| CN109764698A (en) * | 2019-02-27 | 2019-05-17 | 浙江阿尔法化工科技有限公司 | Liquid nitrogen refrigerant heat exchanger and its application method |
| CN112533311A (en) * | 2020-12-11 | 2021-03-19 | 西安交通大学 | Electromagnetic induction heating device for obtaining high-temperature rare gas |
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Application publication date: 20210713 |