CN114165916A - Vacuum insulation liquid electric heater - Google Patents
Vacuum insulation liquid electric heater Download PDFInfo
- Publication number
- CN114165916A CN114165916A CN202111559778.2A CN202111559778A CN114165916A CN 114165916 A CN114165916 A CN 114165916A CN 202111559778 A CN202111559778 A CN 202111559778A CN 114165916 A CN114165916 A CN 114165916A
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- Prior art keywords
- cylinder
- heat insulation
- heating
- layer
- heat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/142—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using electric energy supply
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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
- F24H9/0005—Details for water heaters
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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
- F24H9/02—Casings; Cover lids; Ornamental panels
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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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
Landscapes
- 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)
- Resistance Heating (AREA)
Abstract
The invention relates to a vacuum heat insulation liquid electric heater, which comprises an inner heating cylinder, an electrode and a heat insulation cylinder, wherein a layer of glass or ceramic insulating layer is laid on the outer surface of the inner heating cylinder, a layer of heating wire or thick film heating layer is tightly wound on the outer surface of the glass or ceramic insulating layer, the inner heating cylinder and the two ends of the heat insulation cylinder are welded and sealed, so that a cavity is formed by the inner heating cylinder and the heat insulation cylinder, and the cavity is vacuumized to form a vacuum cavity so as to isolate heat conduction. The heating wire or the thick film heating layer is connected with an external power supply through an electrode. The invention can reduce or isolate three losses of convection, radiation and conduction of heat, reduce the surface temperature rise of the heat insulation cylinder and greatly improve the comprehensive heat efficiency of the heater.
Description
Technical Field
The invention relates to an overflowing liquid heating appliance, in particular to an electric heater for vacuum heat-insulating liquid.
Background
Heating of liquids, particularly tap water or purified water, is common in everyday production and life. The overflowing liquid heating appliance has the advantages of fast liquid temperature rise, flexible and accurate temperature regulation, extremely convenient use, high heating efficiency, energy conservation and environmental protection, and wide application.
Conventional flow-through heaters typically have an internal heating cartridge. Liquid flows through the heating cylinder, and the heating wire or the thick film heating layer is arranged on the outer surface of the heating cylinder. The structure has high heat transfer efficiency. However, since the heating layer is disposed on the outer surface of the heating tube, the heating layer loses a large amount of heat energy through radiation, air conduction and the like, and finally causes a reduction in heat efficiency and an excessive increase in ambient temperature, which brings inconvenience particularly in some occasions where the space is compact.
Disclosure of Invention
The invention provides a vacuum heat insulation liquid electric heater, which aims to reduce or isolate three losses of convection, radiation and conduction of heat, reduce the surface temperature rise of a heat insulation cylinder and greatly improve the comprehensive heat efficiency of the heater.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a vacuum insulation liquid electric heater, includes interior cartridge heater, electrode, a thermal-insulated section of thick bamboo, one deck glass or ceramic insulation layer are laid to the surface of interior cartridge heater, glass or ceramic insulation layer's surface is densely wound the one deck heater or is laid one deck thick film heating layer, interior cartridge heater and thermal-insulated section of thick bamboo both ends welded seal make interior cartridge heater and thermal-insulated section of thick bamboo form a cavity, and this cavity is taken out into vacuum state and is formed the vacuum cavity to the heat-conduction of isolated air, heater or thick film heating layer pass through electrode connection external power source.
Further, the inner heating cylinder is used as a core component of the heater, and liquid flows through a liquid flow passage in the inner heating cylinder.
Furthermore, the electrode and the heat insulation cylinder are isolated by a glass or ceramic insulator; and an insulator ring is arranged between the heat insulation cylinder and the glass or ceramic insulator.
Further, the inner surface of the heat insulation cylinder is plated or polished to reflect the heat radiation of the heating layer.
Furthermore, several rings of flanges are expanded from the middle section of the heat insulation cylinder to increase the strength of the heat insulation cylinder and compensate the thermal stress deformation of the heat insulation cylinder and the internal heating cylinder caused by temperature difference.
Furthermore, the heat insulation cylinder is made of stainless steel and is a thin-wall cylinder body so as to reduce heat conduction.
Furthermore, the two side ends of the heating wire or the thick film heating layer are respectively provided with a hoop.
Furthermore, the inner surface of the hoop is in close contact with the heating wire or the thick film heating layer, and the outer surface of the hoop is firmly pressed or welded with the electrode so as to conduct electric energy.
The invention has the beneficial effects that:
the invention adopts the outer surface of the inner heating cylinder to lay a glass or ceramic insulating layer, the outer surface of the insulating layer is closely wound with a heating wire, or a thick film heating layer is laid similarly. The heating layer is externally provided with a heat insulation barrel, the heat insulation barrel is not contacted with the heating wire of the heating barrel to form a cavity, and the cavity is vacuumized to isolate the heat conduction of air. Meanwhile, the inner surface of the heat insulation cylinder is plated or polished to reflect the heat radiation of the heating layer. The heat insulation cylinder is made of stainless steel and is a thin-wall cylinder body so as to reduce heat conduction. The technical scheme aims to reduce or isolate three losses of convection, radiation and conduction of heat, reduce the surface temperature rise of the heat insulation cylinder and greatly improve the comprehensive heat efficiency of the heater.
Drawings
FIG. 1 is a schematic view of the heater configuration of the present invention;
FIG. 2 is a cross-sectional view of the heater of the present invention;
in the figure: 1. the heating device comprises an internal heating cylinder, 2 electrodes, 3 heat insulation cylinders, 4 heating wires or thick film heating layers, 5 insulator rings, 6 glass or ceramic insulators, 7 liquid flow channels, 8 glass or ceramic insulating layers, 9 hoops and 10 vacuum cavities.
Detailed Description
The following specific embodiments are not to be construed as limiting the scope of the invention. Any alternative modifications or alterations to the practice of this invention which would occur to those skilled in the art are intended to be within the scope of the invention. The invention is not described in detail, but is well known to those skilled in the art.
Referring to fig. 1 and 2, the vacuum heat insulation liquid electric heater of the invention comprises an inner heating cylinder 1, an electrode 2, a heat insulation cylinder 3, a heating wire or a thick film heating layer 4 and the like.
The inner heating cylinder 1 is used as a core part of the heater, and liquid flows through a liquid flow passage 7 in the inner heating cylinder 1. The outer surface of the inner heating cylinder 1 is laid with a glass or ceramic-hidden insulating layer 8, the outer surface of the glass or ceramic insulating layer 8 is closely wound with a heating wire or is similarly laid with a thick film heating layer 4.
The outermost layer of the electric heater is a heat insulation cylinder 3, and the heat insulation cylinder 3 and the two ends of the inner heating cylinder 1 are welded compactly to form a cavity. The heat insulation cylinder 3 is not contacted with the heating wire or the thick film heating layer 4, and the cavity is vacuumized to form a vacuum cavity 10 so as to isolate the heat conduction of air.
The heating wire or the thick film heating layer 4 is connected with an external power supply through the electrode 2.
Preferably, to ensure the insulation of the electrode 2 from the heat insulation cylinder 3, the electrode 2 is isolated from the heat insulation cylinder 3 by a glass or ceramic insulator 6. And an insulator ring 5 is arranged between the heat insulation cylinder 3 and the glass or ceramic insulator 6.
Preferably, the inner surface of the heat insulating cylinder 3 is plated or polished to reflect the heat radiation of the heat generating layer.
Preferably, the middle section of the heat insulation cylinder 3 is expanded with several circles of flanges to increase the strength of the heat insulation cylinder and compensate the stress deformation of the heat insulation cylinder 3 and the internal heating cylinder 1 caused by the temperature difference.
Preferably, the heat insulation cylinder 3 is made of stainless steel and is a thin-walled cylinder to reduce heat conduction.
Preferably, the two ends of the heating wire or thick film heating layer 4 are respectively provided with a hoop 9. The inner surface of the hoop 9 is tightly contacted with the heating wire or the thick film heating layer 4, and the outer surface of the hoop is firmly pressed or welded with the electrode 2 for conducting electric energy.
Claims (8)
1. The utility model provides a vacuum insulation liquid electric heater, includes interior cartridge heater, electrode, a thermal-insulated section of thick bamboo, its characterized in that: a layer of glass or ceramic insulating layer is laid on the outer surface of the inner heating cylinder, and a layer of heating wire is densely wound or a thick film heating layer is laid on the outer surface of the glass or ceramic insulating layer; the inner heating tube and the two ends of the heat insulation tube are welded and sealed, so that a cavity is formed by the inner heating tube and the heat insulation tube, the cavity is vacuumized to form a vacuum cavity to isolate heat conduction of air, and the heating wire or the thick film heating layer is connected with an external power supply through an electrode.
2. The electric vacuum insulated liquid heater according to claim 1, wherein: the inner heating cylinder is used as a core component of the heater, and liquid flows through a liquid flow passage of the inner heating cylinder.
3. The electric vacuum insulated liquid heater according to claim 1, wherein: the electrode and the heat insulation cylinder are isolated by a glass or ceramic insulator; and an insulator ring is arranged between the heat insulation cylinder and the glass or ceramic insulator.
4. The electric vacuum insulated liquid heater according to claim 1, wherein: the inner surface of the heat insulation cylinder is plated or polished to reflect the heat radiation of the heating layer.
5. The electric vacuum insulated liquid heater according to claim 1, wherein: several rings of flanges are expanded from the middle section of the heat insulation cylinder to increase the strength of the heat insulation cylinder and compensate the thermal stress deformation of the heat insulation cylinder and the inner heating cylinder caused by temperature difference.
6. The electric vacuum insulated liquid heater according to claim 1, wherein: the heat insulation cylinder is made of stainless steel and is a thin-wall cylinder body so as to reduce heat conduction.
7. The electric vacuum insulated liquid heater according to claim 1, wherein: and two ends of the heating wire or the thick film heating layer are respectively provided with a hoop.
8. The electric vacuum insulated liquid heater according to claim 7, wherein: the inner surface of the hoop is in close contact with the heating wire or the thick film heating layer, and the outer surface of the hoop is firmly pressed or welded with the electrode so as to conduct electric energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111559778.2A CN114165916A (en) | 2021-12-20 | 2021-12-20 | Vacuum insulation liquid electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111559778.2A CN114165916A (en) | 2021-12-20 | 2021-12-20 | Vacuum insulation liquid electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114165916A true CN114165916A (en) | 2022-03-11 |
Family
ID=80487501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111559778.2A Pending CN114165916A (en) | 2021-12-20 | 2021-12-20 | Vacuum insulation liquid electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114165916A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202612150U (en) * | 2012-06-02 | 2012-12-19 | 张丽华 | Cool-heat electric fan |
| CN203240752U (en) * | 2013-05-07 | 2013-10-16 | 广东四会互感器厂有限公司 | Quartz glass far-infrared electric heating nanometer film blowing dryer |
| CN104214932A (en) * | 2013-05-30 | 2014-12-17 | 宁波金阳光电热科技有限公司 | Water-cooling pre-heating heating body |
| CN105466025A (en) * | 2015-07-02 | 2016-04-06 | 黄其杰 | Water heater carbon fiber electric heating module |
| CN105485901A (en) * | 2016-01-05 | 2016-04-13 | 合肥工业大学 | Food drying hot-blast stove |
| CN208567098U (en) * | 2018-02-13 | 2019-03-01 | 苏州捷迪纳米科技有限公司 | Face electric heater |
| CN208765274U (en) * | 2018-06-28 | 2019-04-19 | 广州迪森家居环境技术有限公司 | Gas-heating hot water apparatus and its connecting tube |
| CN110742463A (en) * | 2019-09-16 | 2020-02-04 | 台州市泰澄电子科技有限公司 | Titanium vacuum thermos cup and composite coating structure of inner container thereof |
| CN212390335U (en) * | 2020-04-26 | 2021-01-22 | 山东国启新能源科技有限公司 | Directly-heated type red copper tube graphene water heating device |
-
2021
- 2021-12-20 CN CN202111559778.2A patent/CN114165916A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202612150U (en) * | 2012-06-02 | 2012-12-19 | 张丽华 | Cool-heat electric fan |
| CN203240752U (en) * | 2013-05-07 | 2013-10-16 | 广东四会互感器厂有限公司 | Quartz glass far-infrared electric heating nanometer film blowing dryer |
| CN104214932A (en) * | 2013-05-30 | 2014-12-17 | 宁波金阳光电热科技有限公司 | Water-cooling pre-heating heating body |
| CN105466025A (en) * | 2015-07-02 | 2016-04-06 | 黄其杰 | Water heater carbon fiber electric heating module |
| CN105485901A (en) * | 2016-01-05 | 2016-04-13 | 合肥工业大学 | Food drying hot-blast stove |
| CN208567098U (en) * | 2018-02-13 | 2019-03-01 | 苏州捷迪纳米科技有限公司 | Face electric heater |
| CN208765274U (en) * | 2018-06-28 | 2019-04-19 | 广州迪森家居环境技术有限公司 | Gas-heating hot water apparatus and its connecting tube |
| CN110742463A (en) * | 2019-09-16 | 2020-02-04 | 台州市泰澄电子科技有限公司 | Titanium vacuum thermos cup and composite coating structure of inner container thereof |
| CN212390335U (en) * | 2020-04-26 | 2021-01-22 | 山东国启新能源科技有限公司 | Directly-heated type red copper tube graphene water heating device |
Non-Patent Citations (1)
| Title |
|---|
| 董大勤: "《化工设备机械基础》", 30 November 1994, 化学工业出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220311 |
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| WD01 | Invention patent application deemed withdrawn after publication |