CN105627556A - Low-flow electric heater - Google Patents
Low-flow electric heater Download PDFInfo
- Publication number
- CN105627556A CN105627556A CN201610148443.4A CN201610148443A CN105627556A CN 105627556 A CN105627556 A CN 105627556A CN 201610148443 A CN201610148443 A CN 201610148443A CN 105627556 A CN105627556 A CN 105627556A
- Authority
- CN
- China
- Prior art keywords
- electric heating
- electric heater
- shell
- liquid outlet
- housing
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
- F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
-
- 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
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The invention relates to the technical field of industrial electric heating, in particular to a low-flow electric heater. The low-flow electric heater comprises a shell and electric heating pipes which are arranged in the shell. The shell is provided with a liquid inlet and a liquid outlet. Electric heating wires are arranged in the electric heating pipes. The spaces between the electric heating wires and pipe bodies of the electric heating pipes are filled with insulating materials. The low-flow electric heater is characterized in that the shell is of a double-helix structure, and the liquid inlet and the liquid outlet are located in the same end of the shell; a process flange is arranged at the end, close to the liquid inlet and the liquid outlet, of the shell, and the electric heating wires in the electric heating pipes penetrate through the process flange to be connected with an anti-explosion junction box. According to the low-flow electric heater, the heat exchange coefficient of the electric heating pipes is further increased, the heating speed is increased, and the service life of the electric heater is prolonged; in addition, the temperature of fluid and the temperature of the surfaces of the electric heating pipes can be controlled conveniently.
Description
Technical field
The present invention relates to industrial electro technical field of heating, it is a kind of low flow electric heater.
Background technology
Existing industrial electric heating device often adopts the form of circulation heater, is made up of container, electrically heated core, medium import and export, explosion-proof wiring box etc., but when running into low flow medium heating occasion, this kind of electric heater just seems improper, major cause:
1, heat exchange coefficient is low, causes the surface temperature height of electric heating pipe, affects the work-ing life of electric heater.
2, temperature does not control well, and the temperature hysteresis of outlet fluid temperature (F.T.) and electric heating tube-surface is very big, and to export fluid temperature (F.T.) as master control, electricity heat pipe temperature overtemperature very early, as taking electricity heat pipe temperature as master control, outlet fluid temperature (F.T.) just is not easy to arrive, and thermotonus is delayed.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of low flow electric heater, has rate of heating fast, it may also be useful to the feature of life-span length.
In order to solve the problems of the technologies described above, the present invention comprises housing and is arranged on the electric heating pipe of enclosure interior, housing is provided with fluid inlet and liquid outlet, it is provided with nichrome wire in described electric heating pipe, it is filled with insulating material between described nichrome wire and electricity tube body of heat pipe, it is characterized in that, described housing is double-spiral structure, described fluid inlet and liquid outlet are positioned at same one end of housing, described housing is provided with process flange near one end of liquid outlet and fluid inlet, and the nichrome wire in described electric heating pipe is connected through process flange with explosion-proof wiring box.
Further, the surface of described electric heating pipe is provided with temperature sensor, and described temperature sensor is connected with temperature regulator.
The present invention further increases the coefficient of heat transfer of electric heating pipe, it is to increase rate of heating, and extends the work-ing life of electric heater, and facilitates fluid and the control of electric heating tube-surface temperature.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram;
Fig. 2 is fluid is installment state figure during gas;
Fig. 3 is fluid is installment state figure during liquid.
Embodiment
Embodiment cited by the present invention; just understand the present invention for helping; should not be construed as limiting the scope of the present invention; for those skilled in the art; without departing from the inventive concept of the premise; the present invention can also being improved and modify, these improve and modify in the scope also falling into the claims in the present invention protection.
As shown in Figure 1, the present invention comprises the housing 1 being made up of steel pipe and the electric heating pipe 2 being arranged on enclosure interior, housing 1 is provided with fluid inlet 3 and liquid outlet 4, for by the turnover of heating fluid, the Guan Tili of described electric heating pipe 2 is provided with nichrome wire, is filled with insulating material between described nichrome wire and electricity tube body of heat pipe.
Unlike the prior art, housing 1 of the present invention is double-spiral structure, and fluid inlet 3 on its middle shell 1 and liquid outlet 4 are positioned at same one end of housing 1. The benefit of this kind of structure is that fluid is rotational flow in spiral tube, adds fluid turbulence degree, further increases the coefficient of heat transfer, extends system work-ing life.
In order to realize housing port sealing and to facilitating nichrome wire to be connected with power supply, described housing 1 is provided with process flange 5 near one end of fluid inlet 3 and liquid outlet 4, the nichrome wire of described electric heating pipe 2 li is connected through process flange 5 with explosion-proof wiring box 6, in order to explosion-proof wiring box 6 internal temperature is unlikely to too high, keeping certain cooling distance between process flange 5 and explosion-proof wiring box 6, power cable is connected with electric heating pipe 2 by explosion-proof wiring box 6.
Too high and burn out in order to accurately to control the temperature on electric heating pipe 2 surface unlikely, the surface of described electric heating pipe 2 is provided with temperature sensor, and described temperature sensor is connected with temperature regulator.
In order to improve the efficiency of heat exchange, accelerating rate of heating, it is inner that the spiral part of described housing 1 is positioned at insulated tank 7, and liquid outlet and fluid inlet are positioned at insulated tank outside.
Use the present invention's can be gas by heating fluid, can also be liquid, as shown in Figure 2, during heated air, housing 1 should be arranged down near fluid inlet and liquid outlet one end, as shown in Figure 3, during heating liquid, housing 1 should be arranged upward near fluid inlet and liquid outlet one end, be possible to prevent no load burning of electrothermal tube phenomenon like this.
Generally speaking, tool of the present invention has the following advantages:
1, medium flow velocity in gap is very fast, and the surface film thermal conductance height of medium and electric heating pipe, the surface temperature of electric heating pipe is just low, and electric heating tube lifetime is long.
2, adopt spirane structure, fluid is rotational flow in spiral tube, adds fluid turbulence degree, further increases the coefficient of heat transfer, extends system work-ing life.
3, the surface mounting at electric heating pipe has temperature sensor, decreases the delayed of temperature, reacts faster.
The fluid channel of heating is long, and fluid heat transfer is abundant.
4, due to coefficient of heat transfer height, electric heater can allow the electric heating pipe adopting more high power density, reduces the material cost of system.
5, adopt double-spiral structure, it is convenient to the wiring of system and the installation of import and export.
6, to import and export in same plane, this only needs to cut on online pipeline corresponding length, well heater insertion is welded, installs very convenient.
Claims (3)
1. low flow electric heater, comprise housing (1) and it is arranged on the electric heating pipe (2) of enclosure interior, housing (1) is provided with fluid inlet (3) and liquid outlet (4), described electric heating pipe (2) is inner is provided with nichrome wire, it is filled with insulating material between described nichrome wire and electricity tube body of heat pipe, it is characterized in that, described housing (1) is double-spiral structure, described fluid inlet (3) and liquid outlet (4) are positioned at same one end of housing (1), described housing (1) is provided with process flange (5) near one end of fluid inlet (3) and liquid outlet (4), the nichrome wire that described electric heating pipe (2) is inner is connected through process flange (5) with explosion-proof wiring box (6).
2. low flow electric heater according to claim 1, it is characterised in that, the surface of described electric heating pipe (2) is provided with temperature sensor, and described temperature sensor is connected with temperature regulator.
3. low flow electric heater according to claim 1 and 2, it is characterised in that, described housing (1) is positioned at attemperator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148443.4A CN105627556A (en) | 2016-03-15 | 2016-03-15 | Low-flow electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148443.4A CN105627556A (en) | 2016-03-15 | 2016-03-15 | Low-flow electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105627556A true CN105627556A (en) | 2016-06-01 |
Family
ID=56042726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610148443.4A Pending CN105627556A (en) | 2016-03-15 | 2016-03-15 | Low-flow electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105627556A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2216225Y (en) * | 1994-11-23 | 1995-12-27 | 张彦兴 | Water heater for bathing |
| KR20070050182A (en) * | 2005-11-10 | 2007-05-15 | 권상희 | Electric boiler using carbon fiber heater |
| CN2935696Y (en) * | 2006-07-21 | 2007-08-15 | 刘绍良 | Helix electro-thermal membrane type electro-thermal tube |
| CN201561544U (en) * | 2009-11-23 | 2010-08-25 | 陆家胤 | Circulation type fast heating device of low-flow fluid |
| US20100310240A1 (en) * | 2009-06-08 | 2010-12-09 | Shun-Chi Yang | High-Efficiency Water Boiler |
| CN201672683U (en) * | 2009-08-20 | 2010-12-15 | 聚光科技(杭州)股份有限公司 | Fluid temperature adjusting device |
| CN201858774U (en) * | 2010-09-18 | 2011-06-08 | 华能无锡电热器材有限公司 | Novel double spiral cyclic heating pipe structure of electric heater |
| CN201875905U (en) * | 2010-11-30 | 2011-06-22 | 丁飞 | Heating body of instant-heating type water heater |
| CN202598861U (en) * | 2012-05-23 | 2012-12-12 | 华能无锡电热器材有限公司 | Novel electric heater |
| CN104266493A (en) * | 2014-10-11 | 2015-01-07 | 华能无锡电热器材有限公司 | Radiant electric heater with isothermal heat exchange pipe |
| CN205481707U (en) * | 2016-03-15 | 2016-08-17 | 华能无锡电热器材有限公司 | Low flow electric heater |
-
2016
- 2016-03-15 CN CN201610148443.4A patent/CN105627556A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2216225Y (en) * | 1994-11-23 | 1995-12-27 | 张彦兴 | Water heater for bathing |
| KR20070050182A (en) * | 2005-11-10 | 2007-05-15 | 권상희 | Electric boiler using carbon fiber heater |
| CN2935696Y (en) * | 2006-07-21 | 2007-08-15 | 刘绍良 | Helix electro-thermal membrane type electro-thermal tube |
| US20100310240A1 (en) * | 2009-06-08 | 2010-12-09 | Shun-Chi Yang | High-Efficiency Water Boiler |
| CN201672683U (en) * | 2009-08-20 | 2010-12-15 | 聚光科技(杭州)股份有限公司 | Fluid temperature adjusting device |
| CN201561544U (en) * | 2009-11-23 | 2010-08-25 | 陆家胤 | Circulation type fast heating device of low-flow fluid |
| CN201858774U (en) * | 2010-09-18 | 2011-06-08 | 华能无锡电热器材有限公司 | Novel double spiral cyclic heating pipe structure of electric heater |
| CN201875905U (en) * | 2010-11-30 | 2011-06-22 | 丁飞 | Heating body of instant-heating type water heater |
| CN202598861U (en) * | 2012-05-23 | 2012-12-12 | 华能无锡电热器材有限公司 | Novel electric heater |
| CN104266493A (en) * | 2014-10-11 | 2015-01-07 | 华能无锡电热器材有限公司 | Radiant electric heater with isothermal heat exchange pipe |
| CN205481707U (en) * | 2016-03-15 | 2016-08-17 | 华能无锡电热器材有限公司 | Low flow electric heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160601 |
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| RJ01 | Rejection of invention patent application after publication |