CN101832643A - Electric heating modular assembly for fluid - Google Patents
Electric heating modular assembly for fluid Download PDFInfo
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- CN101832643A CN101832643A CN 201010182101 CN201010182101A CN101832643A CN 101832643 A CN101832643 A CN 101832643A CN 201010182101 CN201010182101 CN 201010182101 CN 201010182101 A CN201010182101 A CN 201010182101A CN 101832643 A CN101832643 A CN 101832643A
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Abstract
The invention discloses an electric heating modular assembly for a fluid. The assembly comprises a heterotypic member, a heating pipe, an electrode and a metal jacket pipe, wherein the heterotypic member is used as the base of the modular assembly for the fixed installation of other components; the end port of the heating pipe is welded on the heterotypic member, and the heating pipe is used for heating fluid flowing inside the heating pipe; the electrode is led out from the heterotypic member, and is used for connecting an external power supply; the metal jacket pipe is arranged outside the heating pipe, and is used for heat shielding and electromagnetic shielding; an insulating sleeve is arranged between the heterotypic member and the metal jacket pipe, and is used for isolating the heterotypic member from the metal jacket pipe; and an insulating barrier is arranged between the heating pipe and the metal jacket pipe, and is used for isolating the heating pipe from the metal jacket pipe and fixing the heating pipe. The electric heating assembly of the invention has the intrinsic characteristics of low heat resistance of the system, large area and volume of the heating element, high heat flow density, high heat efficiency, uniform temperature distribution of the medium to be heated and the like, and can prevent the heating element in and between the assemblies from being partially overheated or even burnt.
Description
Technical field
The present invention relates to the tubular type electric heating assembly of fluid media (medium)s such as a kind of heated air or liquid, particularly a kind of electric heating modular assembly for fluid.
Background technology
The design feature of existing tubular type electrical heating elements is: make shell by metal jacket pipe, pack in shell high-resistance electrothermic alloy silk or rod made heater, heated medium does not directly contact with heater, and metal jacket pipe is as the recipient of heat and the heat transfer interface of heated medium.Its form has following two kinds: a kind of is to fill and the compacting insulating packing around heating wire or rod, type of thermal communication is crossed heat-conducting mode and is delivered to metal jacket pipe from heater through the insulation filler, by modes such as the convection current heated medium that the heat transferred sleeve pipe is outer, the tubular type electrical heating elements of this structure generally is applicable to the heating under the lower temperature again; Another kind is axially evenly to arrange insulating barrier between metal jacket pipe and heater, insulating barrier also plays the positioning function of heater, type of thermal communication overshoot mode is delivered to metal jacket pipe from heater, by modes such as convection current hot-fluid is passed to the outer heated medium of pipe again, the tubular type heating element heater of this structure generally is applicable to the heating under the higher temperature, mainstream product such as Sweden Kanthal company's T ubothal heating element heater.
The advantage of the tubular electrical heating element of said structure form is to have avoided the erosion of heated medium to heater effectively, as burn into ablation etc., particularly when heated medium has corrosivity.But it has outstanding shortcoming: (1) has increased extra resistance because heater does not directly contact with heated medium, and the heat flow density of heater is restricted; (2) arrangement of heating element heater in heated medium distributes to medium temperature and has a significant impact, and is easy to occur non-uniform temperature, causes the part heating element heater overheated even burn etc.; (3) heating element heater constitutes independently electric heating unit, does not constitute complete heat exchange unit, is easy to occur the mobile of electric heating and heated medium and takes not matching of heat.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: realize the mobile of heating and heated medium and take the coupling of heat energy power; Improve the heat flow density and the thermal efficiency of heater; Medium temperature is evenly distributed, improves the security of whole system; Reduce the weight and volume of system.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of electric heating modular assembly for fluid, it is characterized in that, comprising:
Special-shaped component is as the pedestal of described modular assembly, to fixedly mount other parts;
Heat-generating pipe, its port is welded on the described special-shaped component, is used to heat inflow fluid wherein;
Electrode is drawn from described special-shaped component, is used to connect external power source;
Metal jacket pipe is arranged on described heat-generating pipe outside, is used for heat shielding and electromagnetic shielding;
Be provided with insulation sleeve between described special-shaped component and the metal jacket pipe, be used to isolate described special-shaped component and metal jacket pipe;
Be provided with the insulation division board between described heat-generating pipe and the metal jacket pipe, be used to isolate described heat-generating pipe and metal jacket pipe, and fixing described heat-generating pipe.
Wherein, described heat-generating pipe is straight pipe type, U type tubular type or helix tube type.
Wherein, described heat-generating pipe is that both-end is drawn type or the single-ended type of drawing, vertical or horizontal being arranged on the fluid flow direction.
Wherein, described special-shaped component has two, and the two ends of described heat-generating pipe are welded on respectively on described two special-shaped components.
Wherein, described heat-generating pipe is that both-end is drawn type, and described two special-shaped components are fixed in described modular assembly two ends, and the two ends of described heat-generating pipe are welded on respectively on described two special-shaped components.
Wherein, described heat-generating pipe is the single-ended type of drawing, and described two special-shaped components are fixed in the same end of described modular assembly, and the two ends of described heat-generating pipe are welded on respectively on described two special-shaped components.
Wherein, described heat-generating pipe is the single-ended type of drawing, and is provided with insulating barrier between described two special-shaped components, is used for described two special-shaped components are kept apart.
(3) beneficial effect
Compared with prior art, technique scheme has following advantage:
(1) the tubulose heater has big, the fast characteristics of conducting heat of heat-transfer surface body, thus the heat flow density of heater significantly improve, and thermal efficiency height, whole system in light weight, volume is little;
(2) heat-generating pipe directly contacts with heated medium, makes system's thermal resistance little, thermal efficiency height;
(3) heated medium uniformity of temperature profile can effectively avoid inter-module and assembly internal heat generation body portion overheated;
(4) in the assembly heating element heater be connected in parallel and the electromagnetic shielding of metal jacket pipe has been avoided short circuit and system's electric leakage between pipe effectively.
Description of drawings
Fig. 1 is the structural representation of straight pipe type electric heating modular assembly for fluid of the present invention;
Fig. 2 is the structural representation of helix tube type electric heating modular assembly for fluid of the present invention;
Fig. 3 is the structural representation of U type tubular type electric heating modular assembly for fluid of the present invention.
Wherein, 1: modular assembly; 2: heat-generating pipe; 3: special-shaped component; 4: electrode; 5: metal jacket pipe; 6: insulation sleeve; 7: the insulation division board; 8: insulating barrier.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Fig. 1 is the structural representation of straight pipe type electric heating modular assembly for fluid, and Fig. 2 is the structural representation of helix tube type electric heating modular assembly for fluid.They draw the type structure for both-end, vertical or horizontal being arranged on the fluid flow direction (X).Drawing on the electricity, the two ends of heat-generating pipe 2 are welded on respectively on two special-shaped components 3, and electrode 4 is drawn from special-shaped component 3.In fluid tissue, fluid enters heat-generating pipe 2 from the special-shaped component 3 that is fixed in assembly one end, flows in heat-generating pipe 2 and absorbs electric heating stream and heat up, and flows out from the special-shaped component 3 that is fixed in the assembly other end.At the assembly two ends, metal jacket pipe 5 is isolated by insulation sleeve 6 and special-shaped component 3; At the assembly interlude, insulation division board 7 is (for the straight pipe type assembly) or circumferentially (for the helix tube type assembly) evenly distribution vertically, and isolating metal outer tube 5 and heat-generating pipe 2 are located heat-generating pipe 2 on the other hand on the one hand.
Fig. 3 is a U type tubular type electric heating modular assembly for fluid structural representation.It is the single-ended type of drawing, vertical or horizontal being arranged on the fluid flow direction (X), and two special-shaped components 3 are fixed in the same end of assembly, and the two is isolated by insulating barrier 8, and the two ends of heat-generating pipe 2 are welded on respectively on two special-shaped components 3.On the fluid flow organization, fluid enters heat-generating pipe 2 from import special-shaped component 3, flows in heat-generating pipe 2 and absorbs electric heating stream and heat up, and flows out from the outlet special-shaped component 3 of homonymy.Two special-shaped components 3 are isolated from each other by insulating barrier 8, and isolate by insulation sleeve 6 and metal jacket pipe 5, and at the interlude of assembly, its electric insulation quarantine measures are identical with above straight pipe type assembly.
As can be seen from the above embodiments, fluid-electric heating modular assembly of the present invention can range tubular electrical heating element, but its structure, function etc. are different with existing tubular electrical heating element.Heat-generating pipe), dielectric framework and draw electrode etc. and form it (is called again: by metal sleeve, tubulose heater.According to the serviceability temperature requirement, the tubulose exothermic material can be selected high temperature alloys such as chrome-nickel, siderochrome aluminium or siderochrome nickel, and its geometry can be straight tube, helix tube or U type pipe.Arrangement can be for vertical or horizontal.With the difference of existing tubular electrical heating element be, this heating component heater of one is a tubulose, rather than silk or bar, and the heat-transfer surface of its two heated medium and heating component is the heat-generating pipe wall, and the non-metallic casing outside wall surface.Heating component with the heat exchange process that is heated fluid is: heated medium enters in the heat-generating pipe from the assembly fluid inlet, directly contacts with the heat-generating pipe wall, absorbs the tube wall hot-fluid and is heated, and discharges from fluid issuing.This heating component is not only an electric heating element, but current collection heat, flow, conducting heat is coupled in one, this is that this invention main body is called " heating component " but not the reason of " heating element heater ".Fluid inlet and outlet with draw electrode and be integrated on two special-shaped components, weld on it respectively at the heat-generating pipe two ends.According to the geometry of heat-generating pipe, two different in nature structural configuration are in the one or both ends of assembly.Compare with tubular electrothermal element, this fluid-electric heating modular assembly has following characteristics:
1, this fluid-electric heating modular assembly current collection heat, flow, conduct heat in one, constitute complete heat exchange unit, from essence, solved flowing and taking the matching problem of heat energy power of electric heating and heated medium.
2, the effect of this fluid-electric heating modular assembly metal jacket pipe and heater and effect all are different from existing tubular electrical heating element.Be embodied in:
(1) heat-generating pipe is not only electric heat source, and inner wall surface thereof also is the heat transfer interface of heated medium.Heated medium flows in heat-generating pipe, absorbs tube wall electric heating stream by convection current.Metal jacket pipe no longer is the receiver of electric heating and the heat transfer interface of heated medium, but plays the function of heat shielding, electromagnetic shielding.Its advantage shows as, and the first, system's thermal resistance is low, owing to do not have the thermal conduction resistance of filled insulation and the radiation thermal resistance from the heater to the metal jacket pipe, the whole system thermal resistance reduces greatly; The second, compare with thread, bar-shaped heater, the tubulose heater has big, the fast characteristics of conducting heat of heat-transfer surface body, thus the heat flow density of heater significantly improve, and thermal efficiency height, whole system in light weight, volume is little;
(2) heated medium flows in heat-generating pipe, and the flow distribution uniformity in the heating tube bank of medium in inter-module and same assembly is higher than the flow distribution of tubular electrical heating element far away, and is easy to control.Compare with tubular electrical heating element, it has medium temperature and is evenly distributed, and has avoided between heating component thus and the part of assembly internal heat generation body is overheated even burn, and the security of whole system has obtained large increase;
(3) assembly internal heat generation pipe is arranged in parallel, and has avoided the short circuit between heat-generating pipe.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (7)
1. an electric heating modular assembly for fluid is characterized in that, comprising:
Special-shaped component (3) is as the pedestal of described modular assembly, to fixedly mount other parts;
Heat-generating pipe (2), its port are welded on the described special-shaped component (3), are used to heat inflow fluid wherein;
Electrode (4) is drawn from described special-shaped component (3), is used to connect external power source;
Metal jacket pipe (5) is arranged on described heat-generating pipe (2) outside, is used for heat shielding and electromagnetic shielding;
Be provided with insulation sleeve (6) between described special-shaped component (3) and the metal jacket pipe (5), be used to isolate described special-shaped component (3) and metal jacket pipe (5);
Be provided with insulation division board (7) between described heat-generating pipe (2) and the metal jacket pipe (5), be used to isolate described heat-generating pipe (2) and metal jacket pipe (5), and fixing described heat-generating pipe (2).
2. electric heating modular assembly for fluid as claimed in claim 1 is characterized in that, described heat-generating pipe (2) is straight pipe type, U type tubular type or helix tube type.
3. electric heating modular assembly for fluid as claimed in claim 2 is characterized in that, described heat-generating pipe (2) is drawn type or the single-ended type of drawing, vertical or horizontal being arranged on the fluid flow direction for both-end.
4. electric heating modular assembly for fluid as claimed in claim 3 is characterized in that, described special-shaped component (3) has two, and the two ends of described heat-generating pipe (2) are welded on respectively on described two special-shaped components (3).
5. electric heating modular assembly for fluid as claimed in claim 4, it is characterized in that, described heat-generating pipe (2) is drawn type for both-end, and described two special-shaped components (3) are fixed in described modular assembly two ends, and the two ends of described heat-generating pipe (2) are welded on respectively on described two special-shaped components (3).
6. electric heating modular assembly for fluid as claimed in claim 4, it is characterized in that, described heat-generating pipe (2) is the single-ended type of drawing, and described two special-shaped components (3) are fixed in the same end of described modular assembly, and the two ends of described heat-generating pipe (2) are welded on respectively on described two special-shaped components (3).
7. electric heating modular assembly for fluid as claimed in claim 6 is characterized in that, described heat-generating pipe (2) is the single-ended type of drawing, and is provided with insulating barrier (8) between described two special-shaped components (3), is used for described two special-shaped components (3) are kept apart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010182101 CN101832643A (en) | 2010-05-19 | 2010-05-19 | Electric heating modular assembly for fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010182101 CN101832643A (en) | 2010-05-19 | 2010-05-19 | Electric heating modular assembly for fluid |
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|---|---|
| CN101832643A true CN101832643A (en) | 2010-09-15 |
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| CN 201010182101 Pending CN101832643A (en) | 2010-05-19 | 2010-05-19 | Electric heating modular assembly for fluid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927679A (en) * | 2012-11-29 | 2013-02-13 | 重庆大学 | Rapid electromagnetic sleeve-heating water heater |
| CN105333607A (en) * | 2015-10-30 | 2016-02-17 | 天津赛金节能科技有限公司 | Electromagnetic heater |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2901149Y (en) * | 2006-05-19 | 2007-05-16 | 镇江裕太防爆电加热器有限公司 | Energy saving type anti-explosion electric heater |
| CN101063545A (en) * | 2006-04-25 | 2007-10-31 | 黄樟焱 | Energy-saving instantaneously heated type electric heater unit |
-
2010
- 2010-05-19 CN CN 201010182101 patent/CN101832643A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063545A (en) * | 2006-04-25 | 2007-10-31 | 黄樟焱 | Energy-saving instantaneously heated type electric heater unit |
| CN2901149Y (en) * | 2006-05-19 | 2007-05-16 | 镇江裕太防爆电加热器有限公司 | Energy saving type anti-explosion electric heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927679A (en) * | 2012-11-29 | 2013-02-13 | 重庆大学 | Rapid electromagnetic sleeve-heating water heater |
| CN105333607A (en) * | 2015-10-30 | 2016-02-17 | 天津赛金节能科技有限公司 | Electromagnetic heater |
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Open date: 20100915 |