CN111620407A - Novel microwave electrodeless ultraviolet lighting structure and lighting mode thereof - Google Patents
Novel microwave electrodeless ultraviolet lighting structure and lighting mode thereof Download PDFInfo
- Publication number
- CN111620407A CN111620407A CN202010302351.3A CN202010302351A CN111620407A CN 111620407 A CN111620407 A CN 111620407A CN 202010302351 A CN202010302351 A CN 202010302351A CN 111620407 A CN111620407 A CN 111620407A
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- electrodeless ultraviolet
- microwave
- coaxial
- coaxial cable
- ultraviolet lamp
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- 239000010453 quartz Substances 0.000 claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000005684 electric field Effects 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000011229 interlayer Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 229910052786 argon Inorganic materials 0.000 claims description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 6
- 229910052753 mercury Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000005855 radiation Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3223—Single elongated lamp located on the central axis of a turbular reactor
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- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to the field of microwave electrodeless ultraviolet lamps, in particular to a novel microwave electrodeless ultraviolet lighting structure and a lighting mode thereof, and solves the problems that in the prior art, a lamp tube is high in cost and cannot radiate uniformly. The invention comprises a microwave generator, an electrodeless ultraviolet lamp tube and a uniform radiator; the coaxial cable is provided with a gap in the radial direction; the electrodeless ultraviolet lamp tube is a hollow cylindrical quartz tube; the coaxial cable is arranged in the hollow part of the quartz tube and is connected with the microwave generator. The invention forms uniformly distributed electric fields in the quartz tube through the coaxial cables, and further radiates the electrodeless ultraviolet tube uniformly in all directions; the coaxial cable and two ends of the electrodeless ultraviolet lamp tube are hermetically arranged, so that the whole electrodeless ultraviolet lamp can directly enter water to work, and water cooling is carried out simultaneously, and the service life of the lamp tube is prolonged in a limited way; the invention has simple structure, uniform and comprehensive radiation, simple and effective cooling and reduced production cost.
Description
Technical Field
The invention relates to the field of microwave electrodeless ultraviolet lamps, in particular to a novel microwave electrodeless ultraviolet lighting structure and a lighting mode thereof.
Background
The microwave guided wave electrodeless ultraviolet lamp generally comprises at least a microwave generator, a waveguide and an electrodeless ultraviolet lamp, wherein the microwave generator is commonly used by two types of magnetrons and solid sources, and the waveguide can be a rectangular waveguide, a circular waveguide or a coaxial line. When the traditional microwave electrodeless ultraviolet lamp is used for underwater sterilization treatment, the traditional electrodeless lamp tube cannot be directly contacted with water because waterproof treatment is needed at the connecting part between the microwave generator and the waveguide and the lamp tube;
when the microwave electrodeless ultraviolet lamp structure is used underwater, the lamp tube is placed in the waveguide for excitation, and the sealed quartz column is sleeved on the outer portion of the waveguide, so that water is prevented from permeating, the diameter of the lamp tube is generally 25mm, the diameter of the waveguide needs 90-110mm, and the size of the quartz tube outside is larger than that of the waveguide, so that the size of the quartz tube is particularly large. In the prior art, microwave energy is coupled through a coaxial line and a gap, so that an ultraviolet lamp is excited outside a waveguide, and an ultraviolet lamp tube is arranged at the position where the microwave energy is coupled to the maximum for excitation; because a part of the ultraviolet lamp tube is connected with the coaxial radiator, the ultraviolet lamp tube cannot radiate ultraviolet light uniformly in all directions at 360 degrees.
In the use process of the electrodeless ultraviolet lamp, in order to avoid the heating fault of the lamp tube, air cooling heat dissipation needs to be carried out on the lamp tube, an additional fan mechanism and an additional fan need to be added, the cost is increased, and the structure and the equipment are complex.
And the microwaves are all incident from one direction, the ultraviolet intensity close to the microwave source is high, and the ultraviolet intensity far away from the microwave source is low, so that the ultraviolet radiation is not uniform.
A new electrodeless ultraviolet lamp that can solve the above problems is urgently needed.
Disclosure of Invention
The novel microwave electrodeless ultraviolet lighting structure and the lighting mode thereof provided by the invention solve the problems that in the prior art, the lamp tube is high in cost and cannot radiate uniformly.
The technical scheme of the invention is realized as follows: a novel microwave electrodeless ultraviolet lighting structure comprises a microwave generator, an electrodeless ultraviolet lamp tube and a uniform radiator; the uniform radiator is a coaxial cable provided with a gap; the electrodeless ultraviolet lamp tube is a hollow columnar quartz tube with an interlayer capable of being sealed and provided with mercury and argon; the coaxial cable is arranged in the hollow part of the quartz tube and is connected with the microwave generator through a microwave transmission line.
Furthermore, the gap is arranged on the outer conductor of the coaxial cable, and the outer electric field of the coaxial cable is uniformly distributed.
Wherein, the gap can be arranged radially or transversely or obliquely.
Preferably, the coaxial cable length is identical to the quartz tube length.
Preferably, one end of the electrodeless ultraviolet lamp tube, which is far away from the microwave generator, is also provided with a short circuit surface.
Preferably, the coaxial cable and the electrodeless ultraviolet lamp tube have sealing structures at two ends.
Preferably, the lengths of the coaxial cable and the electrodeless ultraviolet lamp tube are 200mm, and the number of the slots of the coaxial cable is 8.
Preferably, the coaxial cable is connected with the microwave generator through a microwave coaxial conversion device; the microwave coaxial conversion device comprises a coaxial connector and a conversion cavity, wherein the coaxial connector is used for connecting a magnetron and a coaxial cavity;
further, the inner conductor of the coaxial connector is higher than the outer conductor; the inner conductor is in a rivet structure, and the radius of the inner conductor close to the output antenna part exceeds that of the inner conductor far away from the output antenna part; the part close to the output antenna is a nail cap part; the nail cap part is of a chamfer structure.
A novel microwave electrodeless ultraviolet lighting method is characterized in that: the method comprises the following steps:
the microwave generated by the magnetron is transmitted to the uniform radiator through a microwave transmission line;
the uniform radiator uniformly radiates to the hollow part of the quartz tube through the gap;
the microwave radiated through the slit uniformly excites mercury and argon gas in the interlayer to generate ultraviolet rays.
The invention discloses a novel microwave electrodeless ultraviolet lighting structure and a lighting mode thereof, and discloses a novel ultraviolet lamp which can be uniformly and quickly lighted and a lighting mode thereof, wherein a coaxial cable connected with a microwave generator is arranged in a hollow part of a hollow electrodeless ultraviolet lamp tube, non-uniform slits radiate electromagnetic waves, and an electric field which is uniformly distributed is formed in a quartz tube, so that the electrodeless ultraviolet tube is uniformly radiated in all directions; the coaxial cable and two ends of the electrodeless ultraviolet lamp tube are hermetically arranged, so that the whole electrodeless ultraviolet lamp can directly enter water to work, and water cooling is carried out simultaneously, and the service life of the lamp tube is prolonged in a limited way; the invention has simple structure, uniform and comprehensive radiation, simple and effective cooling and reduced production cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1: a schematic cross-sectional view of an electrodeless ultraviolet lamp tube;
FIG. 2: a cross-sectional view of the electrodeless ultraviolet lamp tube;
FIG. 3: an electric field profile of the uniform radiator;
FIG. 4: the microwave coaxial conversion device is structurally schematic;
wherein: 1. an electrodeless ultraviolet lamp tube; 2. an interlayer; 3. a hollow part; 4. a microwave transmission line; 5. a coaxial cable; 6. slotting; 7. a magnetron; 8. a conversion chamber; 9. an inner conductor; 10. an outer conductor; 11. and a cap part.
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 a part of the embodiments of the present invention, and not all of the 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.
The invention discloses a novel microwave electrodeless ultraviolet lighting structure, which comprises a microwave generator, an electrodeless ultraviolet lamp tube 1 and a uniform radiator, wherein the microwave electrodeless ultraviolet lamp tube is provided with a plurality of microwave lamps; the uniform radiator is a coaxial cable 5 provided with a gap; the electrodeless ultraviolet lamp tube 1 is a hollow columnar quartz tube which is provided with an interlayer 2 capable of being sealed and provided with mercury and argon; the coaxial cable 5 is arranged in the hollow part 3 of the quartz tube, and the coaxial cable 5 is connected with the microwave generator through a microwave transmission line 4.
Further, the slots are disposed on the outer conductor 10 of the coaxial cable 5, and the electric field distribution outside the coaxial cable 5 is uniform.
Wherein, the gap can be arranged radially or transversely or obliquely.
Preferably, the length of the coaxial cable 5 is identical to the length of the quartz tube.
Preferably, a short circuit surface is further arranged at one end of the electrodeless ultraviolet lamp tube 1, which is far away from the microwave generator.
Preferably, the coaxial cable 5 and the electrodeless ultraviolet lamp tube 1 have sealing structures at two ends.
Preferably, the lengths of the coaxial cable 5 and the electrodeless ultraviolet lamp tube 1 are 200mm, and the number of the slots 6 of the coaxial cable 5 is 8. Inside the coaxial radiator, current can be conducted along the axial direction of the coaxial line, 6 gaps are formed along the radial direction, the cutting current is cut, the more cutting current, the more energy is coupled from the gaps, and electromagnetic waves are radiated from the coaxial gaps. By using the FDTD algorithm, the slot form, size and number of the coaxial cables 5 are optimized according to the size of S11, and finally uniform radiation of microwave energy in the transmission direction of the entire coaxial cable 5 is achieved. Since the microwave is transmitted from the feed port, i.e. the microwave transmission line 4, the slots closer to the feed port couple the microwave energy first, and in order to ensure that the energy coupled in the axial direction of the whole coaxial radiator with the length of 200m is also uniform, the number of the slots opened at the positions farther from the feed port is larger.
Preferably, the coaxial cable is connected with the microwave generator through a microwave coaxial conversion device; the microwave coaxial conversion device comprises a magnetron 7, a coaxial connector for connecting a coaxial cavity and a conversion cavity 8 for feeding energy; further, the inner conductor 9 of the coaxial connector is higher than the outer conductor 10; the inner conductor 9 is in a rivet structure, and the radius of the part, close to the output antenna, of the inner conductor 9 exceeds that of the far part; the part close to the output antenna is a nail cap part 11; the nail cap part 11 is a chamfer structure.
The microwave coaxial conversion device is provided with the output antenna which can be connected with the magnetron 7 and the coaxial connector which is connected with the coaxial cavity, so that microwave energy is output in the conversion cavity 8, the microwave coaxial conversion device has the advantages of simple and small structure, convenience for integration of the magnetron 7 system, high microwave output efficiency and difficulty in being influenced by loads; by providing the nut portion 11, the tip effect is effectively prevented.
A novel microwave electrodeless ultraviolet lighting method comprises the following steps: the microwave generated by the magnetron 7 is transmitted to the uniform radiator through the microwave transmission line 4; the uniform radiator uniformly radiates to the hollow part 3 of the quartz tube through the gap; the microwave radiated through the slit uniformly excites mercury and argon gas in the interlayer 2 to generate ultraviolet rays.
In the using process, a microwave generator, namely a solid state source carries out electromagnetic wave radiation through a non-uniform slot 6 on a coaxial cable 5 connected with a microwave connector, and the slot 6 on the coaxial cable 5 is arranged in a mode that the farther the distance from the solid state source is, the more dense the slot 6 is; specifically, the setting is carried out according to the size of S11 and whether the electric field distribution outside the quartz tube is uniform or not by utilizing an FDTD algorithm; when the slit 6 is uniformly radiated outside the electrodeless ultraviolet lamp, the purpose of uniformly lighting the electrodeless ultraviolet lamp is achieved;
on the basis, the coaxial cable 5 and the electrodeless ultraviolet lamp are sealed, the electrodeless ultraviolet lamp can be directly inserted into water or other liquid for sterilization after being sealed by sealant or directly sealing one end far away from the solid source in an integrated forming mode, and the electrodeless ultraviolet lamp can be cooled on the basis of uniform radiation, so that the rejection rate of the electrodeless ultraviolet lamp tube 1 is reduced, and the service life of the electrodeless ultraviolet lamp tube 1 is prolonged.
As shown in the electric field distribution of the uniform radiator in fig. 3, when the input power is 500W, the microwave reflection coefficient of the port is less than-10 dB through S11 simulating the wave feeding port; it can be seen that the electric field intensity at the ultraviolet lamp tube can reach more than 3000V/m, the 360-degree all-directional electric field intensity is uniform, and the electric field size at each position of the whole ultraviolet lamp tube is uniform.
The invention discloses a novel microwave electrodeless ultraviolet lighting structure and a lighting mode thereof, and discloses a novel ultraviolet lamp which can be uniformly and quickly lighted and a lighting mode thereof, wherein a coaxial cable 5 connected with a microwave generator is arranged in a hollow part 3 of a hollow electrodeless ultraviolet lamp tube 1, an inhomogeneous slit 6 radiates electromagnetic waves, and an electric field which is uniformly distributed is formed in a quartz tube, so that an electrodeless ultraviolet tube is uniformly radiated in all directions; the coaxial cable 5 and the two ends of the electrodeless ultraviolet lamp tube 1 are hermetically arranged, so that the whole electrodeless ultraviolet lamp can directly enter water to work, and water cooling is carried out simultaneously, and the service life of the lamp tube is prolonged in a limited way; the invention has simple structure, uniform and comprehensive radiation, simple and effective cooling and reduced production cost.
It is understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention, and it is intended to cover in the appended claims all such changes and modifications.
Claims (10)
1. A novel microwave electrodeless ultraviolet lighting structure comprises a microwave generator and an electrodeless ultraviolet lamp tube, and is characterized in that: also includes a uniform radiator; a gap is arranged on the coaxial cable; the electrodeless ultraviolet lamp tube is a hollow columnar quartz tube with an interlayer capable of being sealed and provided with mercury and argon; the coaxial cable is arranged in the hollow part of the quartz tube and is connected with the microwave generator through a microwave transmission line.
2. The novel microwave electrodeless ultraviolet lighting structure as claimed in claim 1, is characterized in that: the gap is arranged on the outer conductor of the coaxial cable, and the outer electric field of the coaxial cable is uniformly distributed.
3. The novel microwave electrodeless ultraviolet lighting structure as claimed in claim 2, wherein: the slits may be radially or laterally or diagonally arranged.
4. The novel microwave electrodeless ultraviolet lighting structure as claimed in claim 3, wherein: the length of the coaxial cable is consistent with the length of the quartz tube.
5. The novel microwave electrodeless ultraviolet lighting structure as claimed in claim 4, is characterized in that: and a short circuit surface is also arranged at one end of the electrodeless ultraviolet lamp tube, which is far away from the microwave generator.
6. The novel microwave electrodeless ultraviolet lighting structure as claimed in claim 5, is characterized in that: the coaxial cable and the two ends of the electrodeless ultraviolet lamp tube are provided with sealing structures.
7. The novel microwave electrodeless ultraviolet lighting structure as claimed in claim 6, wherein: the lengths of the coaxial cables and the electrodeless ultraviolet lamp tubes are 200mm, and the number of the slots of the coaxial cables is 8.
8. The novel microwave electrodeless ultraviolet lighting structure as claimed in claim 7, wherein: the coaxial cable is connected with the microwave generator through a microwave coaxial conversion device; the microwave coaxial conversion device comprises a magnetron, a coaxial connector and a conversion cavity, wherein the magnetron is connected with the coaxial connector, the coaxial connector is connected with the coaxial cavity, and the conversion cavity is used for feeding energy.
9. The novel microwave electrodeless ultraviolet lighting structure as claimed in claim 8, wherein: the inner conductor of the coaxial connector is higher than the outer conductor;
the inner conductor is in a rivet structure, and the radius of the inner conductor close to the output antenna part exceeds that of the inner conductor far away from the output antenna part;
the part close to the output antenna is a nail cap part;
the nail cap part is of a chamfer structure.
10. The novel microwave electrodeless ultraviolet lighting method as claimed in any one of claims 1 to 9, wherein: the method comprises the following steps:
the microwave generated by the magnetron is transmitted to the uniform radiator through a microwave transmission line;
the uniform radiator uniformly radiates to the hollow part of the quartz tube through the gap;
the microwave radiated through the slit uniformly excites mercury and argon gas in the interlayer to generate ultraviolet rays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010302351.3A CN111620407A (en) | 2020-04-16 | 2020-04-16 | Novel microwave electrodeless ultraviolet lighting structure and lighting mode thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010302351.3A CN111620407A (en) | 2020-04-16 | 2020-04-16 | Novel microwave electrodeless ultraviolet lighting structure and lighting mode thereof |
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| Publication Number | Publication Date |
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| CN111620407A true CN111620407A (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010302351.3A Pending CN111620407A (en) | 2020-04-16 | 2020-04-16 | Novel microwave electrodeless ultraviolet lighting structure and lighting mode thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112837992A (en) * | 2021-01-08 | 2021-05-25 | 四川大学 | Microwave electrodeless ultraviolet lamp device |
| CN112911781A (en) * | 2021-01-15 | 2021-06-04 | 成都奋羽电子科技有限公司 | Array type rectangular cavity microwave plasma generator |
| CN115978785A (en) * | 2022-12-19 | 2023-04-18 | 四川大学 | Coaxial slotted radiator, continuous flow liquid heating system and heating method |
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|---|---|---|---|---|
| JPS6146290A (en) * | 1984-08-13 | 1986-03-06 | Toshiba Corp | Fluid treating apparatus |
| CN102153174A (en) * | 2010-02-12 | 2011-08-17 | 姜雄律 | Microwave plasma water sterilization device |
| WO2013006085A1 (en) * | 2011-07-04 | 2013-01-10 | Misakyan Mamikon Aramovich | Microwave gas-discharge source of ultraviolet radiation |
| CN104357810A (en) * | 2014-11-04 | 2015-02-18 | 大连理工常州研究院有限公司 | Coaxial microwave plasma film-deposition equipment |
| CN108514856A (en) * | 2018-06-04 | 2018-09-11 | 四川大学 | A kind of method and its device of microwave and ultraviolet light combination curing |
| CN213357015U (en) * | 2020-04-16 | 2021-06-04 | 四川大学 | Novel microwave electrodeless ultraviolet lighting structure |
-
2020
- 2020-04-16 CN CN202010302351.3A patent/CN111620407A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6146290A (en) * | 1984-08-13 | 1986-03-06 | Toshiba Corp | Fluid treating apparatus |
| CN102153174A (en) * | 2010-02-12 | 2011-08-17 | 姜雄律 | Microwave plasma water sterilization device |
| WO2013006085A1 (en) * | 2011-07-04 | 2013-01-10 | Misakyan Mamikon Aramovich | Microwave gas-discharge source of ultraviolet radiation |
| CN104357810A (en) * | 2014-11-04 | 2015-02-18 | 大连理工常州研究院有限公司 | Coaxial microwave plasma film-deposition equipment |
| CN108514856A (en) * | 2018-06-04 | 2018-09-11 | 四川大学 | A kind of method and its device of microwave and ultraviolet light combination curing |
| CN213357015U (en) * | 2020-04-16 | 2021-06-04 | 四川大学 | Novel microwave electrodeless ultraviolet lighting structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112837992A (en) * | 2021-01-08 | 2021-05-25 | 四川大学 | Microwave electrodeless ultraviolet lamp device |
| CN112911781A (en) * | 2021-01-15 | 2021-06-04 | 成都奋羽电子科技有限公司 | Array type rectangular cavity microwave plasma generator |
| CN112911781B (en) * | 2021-01-15 | 2023-10-13 | 成都奋羽电子科技有限公司 | Array type rectangular cavity microwave plasma generator |
| CN115978785A (en) * | 2022-12-19 | 2023-04-18 | 四川大学 | Coaxial slotted radiator, continuous flow liquid heating system and heating method |
| CN115978785B (en) * | 2022-12-19 | 2024-03-19 | 四川大学 | Coaxial slotting radiator, continuous flow liquid heating system and heating method |
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