CN102401421A - Electric heater for heating fluid circularly - Google Patents
Electric heater for heating fluid circularly Download PDFInfo
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- CN102401421A CN102401421A CN2011103732830A CN201110373283A CN102401421A CN 102401421 A CN102401421 A CN 102401421A CN 2011103732830 A CN2011103732830 A CN 2011103732830A CN 201110373283 A CN201110373283 A CN 201110373283A CN 102401421 A CN102401421 A CN 102401421A
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- electric heater
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Abstract
The invention relates to an electric heater for heating fluid circularly. The electric heater is provided with a parallel pipe piece group, shells and an electric heating device, wherein the shells are arranged at the two ends of the parallel pipe piece group and are used for concentrating the fluid; the electric heating device is arranged at the end part of one shell, and comprises a hollow piece and electric heating pieces; the length of the hollow piece is less than that of the shell; the electric heating pieces are arranged in the hollow piece; and fluid output ports are arranged in the radial direction of the hollow piece. The electric heating device in the electric heater can lead the heated fluid to flow into one or a part of parallel pipe piece(s) in the parallel pipe piece group, so that the fluid in the electric heater can be heated circularly without supplying a large amount of energy, and the heat exchange speed is very high.
Description
Technical field
The present invention relates to a kind of electric heater of fluid recirculation heating.
Background technology
Existing electric heater comprises that one arranges parallel pipe fitting and is installed in the housing that is used to assemble fluid at these parallel pipe fitting two ends, and is installed in the electric heater unit in the lower case, and electric heater unit wherein takies the whole or most of space of housing usually.The electric heater of this kind structure is when convection cell heats; The fluid that at first will belong in the housing is heated to the temperature that can flow; So that heated fluid moves to the top through all parallel pipe fittings, get at last in the housing on top, and be not heated or cryogen flows downwards through all parallel pipe fitting; So what the electric heater convection cell of this kind structure adopted is the convection type mode of heating.
Utilize in the process of electric heater heating; Be that the heat energy that distributes through it heats ambient air earlier, little by little spread again as the heat transfer meson through heated air then, so that hot gas circulates in the heating space to the interior space; The mode that promptly freely circulates through hot gas realizes heating; Wherein, the speed speed that hot gas freely circulates can determine the effect of heating, and its circulation rate speed depends on the heated speed of transmitting medium in the electric heater.Mistaken ideas are thought in the prior art, and power conversion speed needs big relatively energy to keep stationary temperature slowly, and in order to improve the heated speed of transmitting medium in the electric heater, unique solutions is the power output that increases electric heater; In addition; Even if the power output of electric heater is relatively large, because the electric heater of this kind structure is to adopt the convection type heating, and no matter it adopts water still oily as transmitting medium; Fluid is in the process of convection current; Transmitting medium does not increase too big speed yet, so, utilize the electric heater heating of this kind structure to waste energy.
Summary of the invention
The purpose of this invention is to provide the electric heater that a kind of fluid recirculation of utilizing the hydronic mode of transmitting medium to solve the big problem of the energy heats.
The electric heater of fluid recirculation heating proposed by the invention has parallel pipe fitting group and the housing that is used to assemble fluid that is installed in these parallel pipe fitting group two ends; And the electric heater unit that is installed in one of them shell end; This electric heater unit comprises the hollow that is shorter in length than housing and the electrothermal piece that is installed in the hollow, and hollow radially be provided with fluid outlet.Hollow in the electric heater unit is shorter than the length of housing, and the fluid of its heating can directly get in the parallel pipe fitting of shell end, move to the top from the parallel pipe fitting that it got into after the volumetric expansion of heated fluid, thereby convection cell is realized the circulation heating.
The end that said hollow extends in the housing is provided with baffle plate; This baffle plate is provided with the fluid input port; The position, fluid input port of baffle plate is provided with rectangle or the trapezoidal or leg-of-mutton constriction of circular arc that in hollow, extends, and the both sides of this constriction are connected with hollow.
The fluid outlet that said hollow radially is provided with extends in the pipe fitting of limit portion in the parallel pipe fitting.
The outer surface of said parallel pipe fitting group is provided with the one group of fin that keeps at a certain distance away and be parallel to each other.
Said electric heater also comprises the outer cover that is installed at interval outside parallel pipe fitting group or the fin preset distance, and this outer cover is provided with air inlet and exhaust outlet.
In the electric heater unit that the electric heater of fluid recirculation proposed by the invention heating adopts, heated fluid only flows in the parallel pipe fitting group one or the partial parallel pipe fitting, so that the fluid in the electric heater can be recycled heating; Fluid in being recycled the process of heating, do not hindered or suffered obstruction very little, need not supply big energy, the speed of its heat exchange is very fast; So; This electric heater can be energy-conservation, detects according to on-the-spot, and this electric heater adopts oil as transmitting medium; When its power output was 600KW, oil can be heated to 135 ℃ in 5 minutes; In addition, the constriction that the hollow end is provided with can make the fluid that enters in the electric heater unit equate basically with the fluid of heating back output, can further improve the speed that adds hot fluid.
Description of drawings:
Accompanying drawing 1 is the surface structure sketch map of an embodiment of electric heater of fluid recirculation proposed by the invention heating;
Accompanying drawing 2 is Fig. 1 cross-sectional view;
Accompanying drawing 3 is cross-sectional view of electric heater unit among Fig. 1;
Accompanying drawing 4 is cross-sectional view of Fig. 3.
The specific embodiment:
Referring to Fig. 1 and Fig. 2, these two accompanying drawings provide the overall appearance structure of an embodiment of electric heater of fluid recirculation heating proposed by the invention.This electric heater comprises parallel pipe fitting group 1 and the housing that is used to assemble fluid that is installed in these parallel pipe fitting group 1 two ends, and electrical heating adorns 4 and fin 5.Wherein, Housing comprises upper shell 2 and lower house 3, is provided with 5 pipe fittings (can confirm the quantity of pipe fitting according to the size of electric heater, generally between the 2-12 root) in the parallel pipe fitting group 1; Two ends of each the root pipe fitting in the parallel pipe fitting group 1 are connected with upper shell 2 and lower house 3 respectively; And at upper shell 2 and lower house 3, and in the parallel pipe fitting group 1 fluid is housed, this fluid optimal selection is an oil.When electric heater unit 4 is opened; Fluid in its pairing pipe fitting is heated earlier; The pipe fitting of heated fluid through the place flowed in the upper shell 2; And then from upper shell 2 in other pipe fittings flow into lower house 3, the fluids in the lower house 3 get in the hollow 41 (referring to Fig. 4) from electric heater unit 4 ends and are heated once more, and then realize the fluid recirculation heating.
After fluid was recycled heating, the heat energy that parallel pipe fitting group 1 and upper shell 2 and lower house 3 are produced can quicken to external diffusion through fin 5.The fin 5 that provides in the present embodiment is one group of vertical sheet backing, and this fin 5 is arranged on the outer surface of parallel pipe fitting group 1, and is separated with certain distance between adjacent two vertical sheets and is parallel to each other.The transversal flaps that is separated with certain distance between fin 5 can also adopt and is parallel to each other constitutes.
Because after parallel pipe fitting group 1 and upper shell 2 and lower house 3 are heated by the fluid in it; Utilizing its heat energy that outwards distributes also to can be used as hot air apparatus uses; As being provided with outer cover (not providing among the figure) at interval at parallel pipe fitting group 1 or fin 5, and this outer cover is provided with air inlet and exhaust outlet preset distances, wind is blown in the outer cover from air inlet through blower fan; Can discharge hot blast from exhaust outlet, thereby accomplish the function of hot air apparatus.
Referring to Fig. 3 and Fig. 4, these two accompanying drawings provide the surface structure of 4 one embodiment of electric heater unit.Electric heater unit 4 comprises a hollow 41 and electrothermal piece 42; Wherein, The hollow 41 that provides in the present embodiment is circular pipe fittings; Hollow 41 radially be provided with to above the fluid that extends go out outlet 43, this fluid goes out outlet 43 and may extend in the pipe fitting in the parallel pipe fitting group 1, preferably extends in the parallel pipe fitting group 1 in the pipe fitting of limit portion; In addition; It is the pipe fitting of oval pipe fitting or trapezoidal pipe fitting or other geometry that hollow 41 also can adopt rectangular pipe fittings or cross section; Above-mentioned fluid goes out outlet 43 quantity and can be provided with a plurality ofly, but its quantity must be less than the pipe fitting quantity that is comprised in the parallel pipe fitting group 1.The end that hollow 41 extends in the lower house 3 is provided with baffle plate 44; This baffle plate 44 is provided with fluid input port 45; And be provided with rectangle or the trapezoidal or leg-of-mutton constriction 46 of circular arc that in hollow 41, extends at 45 positions, fluid input port, the both sides of this constriction 46 are connected with hollow 41.Constriction 46 can hinder fluid and get in large quantities in the hollow 41, and the mode of this kind current limliting can make fluid can be recycled heating quickly.Electrothermal piece 42 is the electric heating elements that are made up of resistance wire, at the pipe fitting that is coated with of resistance wire.
Claims (6)
1. the electric heater of fluid recirculation heating; It is characterized in that: this electric heater has parallel pipe fitting group and the housing that is used to assemble fluid that is installed in these parallel pipe fitting group two ends; And the electric heater unit that is installed in one of them shell end; This electric heater unit comprises the hollow that is shorter in length than housing and the electrothermal piece that is installed in the hollow, and hollow radially be provided with fluid outlet.
2. electric heater according to claim 1 is characterized in that: the end that said hollow extends in the housing is provided with baffle plate, and this baffle plate is provided with the fluid input port.
3. electric heater according to claim 2 is characterized in that: the position, fluid input port of said baffle plate is provided with rectangle or the trapezoidal or leg-of-mutton constriction of circular arc that in hollow, extends, and the both sides of this constriction are connected with hollow.
4. electric heater according to claim 1 is characterized in that: the fluid outlet that said hollow radially is provided with extends in the pipe fitting of limit portion in the parallel pipe fitting.
5. electric heater according to claim 1 is characterized in that: the outer surface of said parallel pipe fitting group is provided with the one group of fin that keeps at a certain distance away and be parallel to each other.
6. electric heater according to claim 1 is characterized in that: said electric heater also comprises the outer cover that is installed at interval outside parallel pipe fitting group or the fin preset distance, and this outer cover is provided with air inlet and exhaust outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103732830A CN102401421A (en) | 2011-11-22 | 2011-11-22 | Electric heater for heating fluid circularly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103732830A CN102401421A (en) | 2011-11-22 | 2011-11-22 | Electric heater for heating fluid circularly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102401421A true CN102401421A (en) | 2012-04-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103732830A Pending CN102401421A (en) | 2011-11-22 | 2011-11-22 | Electric heater for heating fluid circularly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102401421A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925632A (en) * | 2013-09-17 | 2014-07-16 | 宁波市鄞州多凡国际贸易有限公司 | Novel expansion type electric oil heater |
| CN106287908A (en) * | 2016-09-07 | 2017-01-04 | 北京国泰环能科技有限公司 | A kind of convection-type electric heater of band deflector |
Citations (8)
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|---|---|---|---|---|
| CN2205925Y (en) * | 1994-04-08 | 1995-08-23 | 潘荣哲 | Efficient electric energy-saving air heater |
| CN2224981Y (en) * | 1995-01-26 | 1996-04-17 | 张继正 | Heating apparatus |
| CN2267411Y (en) * | 1996-09-13 | 1997-11-12 | 封国男 | Energy saving electric arrangement for warming room |
| CN2492786Y (en) * | 2000-12-06 | 2002-05-22 | 卫新光 | Directly heating electric heater |
| CN2515570Y (en) * | 2002-01-07 | 2002-10-09 | 李道彬 | Superconducting radiating electric heater |
| CN101266061A (en) * | 2008-04-26 | 2008-09-17 | 牟敦善 | Column type heat radiator transverse placement electric heater |
| CN201121943Y (en) * | 2007-10-19 | 2008-09-24 | 赵连龙 | High-efficiency energy-saving electric heating device |
| CN202382309U (en) * | 2011-11-22 | 2012-08-15 | 肖连山 | Electric heater for circularly heating fluid |
-
2011
- 2011-11-22 CN CN2011103732830A patent/CN102401421A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2205925Y (en) * | 1994-04-08 | 1995-08-23 | 潘荣哲 | Efficient electric energy-saving air heater |
| CN2224981Y (en) * | 1995-01-26 | 1996-04-17 | 张继正 | Heating apparatus |
| CN2267411Y (en) * | 1996-09-13 | 1997-11-12 | 封国男 | Energy saving electric arrangement for warming room |
| CN2492786Y (en) * | 2000-12-06 | 2002-05-22 | 卫新光 | Directly heating electric heater |
| CN2515570Y (en) * | 2002-01-07 | 2002-10-09 | 李道彬 | Superconducting radiating electric heater |
| CN201121943Y (en) * | 2007-10-19 | 2008-09-24 | 赵连龙 | High-efficiency energy-saving electric heating device |
| CN101266061A (en) * | 2008-04-26 | 2008-09-17 | 牟敦善 | Column type heat radiator transverse placement electric heater |
| CN202382309U (en) * | 2011-11-22 | 2012-08-15 | 肖连山 | Electric heater for circularly heating fluid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925632A (en) * | 2013-09-17 | 2014-07-16 | 宁波市鄞州多凡国际贸易有限公司 | Novel expansion type electric oil heater |
| CN106287908A (en) * | 2016-09-07 | 2017-01-04 | 北京国泰环能科技有限公司 | A kind of convection-type electric heater of band deflector |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20120404 |