CN1589068A - Electric heater for electric heating boiler - Google Patents
Electric heater for electric heating boiler Download PDFInfo
- Publication number
- CN1589068A CN1589068A CN 200410080971 CN200410080971A CN1589068A CN 1589068 A CN1589068 A CN 1589068A CN 200410080971 CN200410080971 CN 200410080971 CN 200410080971 A CN200410080971 A CN 200410080971A CN 1589068 A CN1589068 A CN 1589068A
- Authority
- CN
- China
- Prior art keywords
- electrically heated
- electric heating
- heating elements
- heating body
- heated boiler
- 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
- 238000005485 electric heating Methods 0.000 title claims description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 238000004078 waterproofing Methods 0.000 claims description 20
- 239000011241 protective layer Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000004642 Polyimide Substances 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 230000004888 barrier function Effects 0.000 description 7
- 238000003466 welding Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
An electronic heating unit used in heating boilers includes at least an electric tube heating element including screw coils packaged in a double-framed wall of a tube water-proof jacket, insulation protection layers are set between adjacent turns of coils and water-proof jackets, two ends of the resistance wires are connected with leads with insulation protection layer. This electric heater has light heat efficiency its electric energy conversion percent is over 98%.
Description
Technical field
The present invention relates to the electric heating body that a kind of electrically heated boiler or water heater are used.
Background technology
Electric heating body in the flue of electrically heated boiler or water heater adopts the electrothermal tube or the resistance wire of U type to heat, because electric energy has only portion of energy to be converted into heat energy, so its utilization rate of electrical is low, the heat efficiency generally has only about 40%, cause electric quantity consumption big and quantity of heat production is little, cause the operating cost of this electrically heated boiler higher.
Summary of the invention
The low problem of utilization rate of electrical of the electric heating body that exists at the conventional electric heating boiler, the object of the present invention is to provide a kind of calandria of electrically heated boiler efficiently, this calandria utilization rate of electrical is much higher than the conventional electric heating body, can effectively reduce the operating cost of electric energy consumption, reduction electrically heated boiler or water heater.
The electric heating body that electrically heated boiler provided by the invention is used; comprise at least one electrical heating elements; it is characterized in that: described electrical heating elements is cylindric; the helical coil cylindraceous that comprises the resistance wire coiled; coil is encapsulated in the double wall of a columnar waterproofing guaranteeding jacket; between circle that coil is adjacent and the circle and between coil and the waterproofing guaranteeding jacket insulating protective layer is arranged, the resistance wire two ends are connected with the lead of tape insulation protective layer.
Described electrical heating elements can be for more than two, and coaxial package has the circulation gap together between the adjacent electrical heating elements.Its comparatively ideal quantity is three, and coaxial package together.
Described electrical heating elements can be up-small and down-big taper cylinder.
For ease of installing, described lead is contained in the wire socket, and wire socket and described waterproofing guaranteeding jacket link together.
For ease of connecting, at described waterproofing guaranteeding jacket inner surface or outer surface upper/lower terminal annular projection can be arranged, described wire socket and the welding of described annular projection.
Described waterproofing guaranteeding jacket is the stainless steel sleeve, and described insulating protective layer is to be wrapped in the outer polyimide insulative film of resistance wire.
The calandria that electrically heated boiler of the present invention is used promptly can be used for electrically heated boiler, also can be used for electric heater, compares with the conventional electric heating body to have following advantage:
(1) the resistance wire coiled helical coil cylindraceous of generation heat energy in the electric heating body; coil is encapsulated in the columnar waterproofing guaranteeding jacket; the heat that its resistance wire produces carries out conduction heat transfer by waterproofing guaranteeding jacket and water; the magnetic field that produces continuous conversion pole orientation again during the resistance wire indirect current of coiling coiled type simultaneously; also can form the eddy current heating; so the heat of its generation improves greatly; its heat efficiency can be more than 98%; improved the utilance of electric energy greatly; reduce the operating cost of boiler, reached the purpose of energy-saving and environmental protection.
(2) electrical heating elements adopts cylinder-like structure, there is the big temperature difference in the water of the water of cylindric electrical heating elements inside and cylindric electrical heating elements outside during heating, cause the density difference of the inside and outside water of electrical heating elements, easily form the convection current of the inside and outside water of cylinder, help the convective heat transfer of water.
(3) when the electric heating body that adopts plural electrical heating elements coaxial package together to form, water can be in the circulation gap between the different heating elements convective heat transfer, single heating element heats is better than adopting, and not only can connect the 220V alternating current easily but also can use the three-phase alternating current of 380V easily.
Description of drawings
The structural representation of the electrical heating elements of the calandria that Fig. 1 uses for electrically heated boiler of the present invention;
The electric heating body structure schematic diagram that Fig. 2 uses for the electrically heated boiler that adopts three heating elements to be sleeved on formation together.
Embodiment
The calandria of electrically heated boiler of the present invention being used below in conjunction with the drawings and specific embodiments is described further, to help understanding content of the present invention.
Embodiment 1
The electric heating body that electrically heated boiler in the present embodiment is used adopts an electrical heating elements; the structure of electrical heating elements as shown in Figure 1; in the double wall of a waterproofing guaranteeding jacket 1 cylindraceous, be wound with resistance wire 2 equably and form resistance wire coil; between the different circles of resistance wire coil and between resistance wire coil 2 and the waterproofing guaranteeding jacket 1 insulating barrier 3 is being arranged; the two ends of resistance wire 2 are connected with the lead 4 of tape insulation protective layer and draw, so that be connected with power supply.
Its insulating barrier 3 can be structure as a whole with waterproofing guaranteeding jacket 1; For the ease of producing; waterproofing guaranteeding jacket 1 is the branch body structure with insulating barrier 3 in the present embodiment; wherein waterproofing guaranteeding jacket 1 is welded into by stainless steel inner sleeve 12 and outer sleeve 11; insulating barrier 3 by the outer insulating barrier of resistance wire 2 and and inner sleeve 12 and outer sleeve 11 between insulating barrier constitute; adopt the polyimide insulative film to be wound in the present embodiment; this dielectric film has insulation property; the effect that resistance to elevated temperatures is good; on inner sleeve 12, twine the polyimide insulative film earlier; the resistance wire 2 that then will be equally be wound with dielectric film at outer surface closely is wrapped on the inner sleeve 12 that winds dielectric film; and then the insulating barrier 3 between its outer surface winding dielectric film formation and outer sleeve 11; outer sleeve 11 is put and weld together, so this structure is convenient to processing very much with inner sleeve 12.
As a preferred embodiment; electric heating body shown in Figure 1 also is fixed with a stainless steel wire socket 5 in stainless steel waterproofing guaranteeding jacket 1; stainless steel wire socket 5 can play three effects; the one, as the protective sleeve of lead 4; play waterproof; the effect of anti-tamper lead 4; the secondth, as a mounting bracket of electrical heating elements; there is baffle ring 51 wire socket 5 belows; there is screw thread baffle ring 51 to the position of sleeve pipe 5 ends; can mode as shown in Figure 1 be fixed on the flue 100 of electrically heated boiler with nut easily like this; make electric heating body and inside of boiler 100 bottoms (or sidewall) keep a determining deviation by wire socket 5 supportings; so that water can flow in the tube outside the cylinder electric heating body from this gap; water is flowed to outside the cylinder in cylindric electric heating body; form the convection current of water, be beneficial to conduct heat.
Wire socket 5 can be positioned at waterproofing guaranteeding jacket 1 inboard and inner sleeve 12 welding, also can be positioned at the waterproofing guaranteeding jacket outside and outer sleeve 11 welding.Wire socket 5 is welded on inner sleeve 12 inboards in the present embodiment, this structure is convenient to twine the operation of resistance wire 2 more, winding its two ends, resistance wire 2 back lead 4 interior with being through wire socket 5 can be connected easily, can unhinderedly outer sleeve 11 be put and weld then, assembly manipulation will become comparatively difficult on the outer sleeve 11 if be positioned at.For ease of welding, at described inner sleeve 12 inner surface upper/lower terminals annular projection 121 is arranged, then form groove at opposite side, two terminations of resistance wire 2 penetrate in the wire socket 5 in projection 121 and the hole that wire socket is communicated with and are connected with lead 4, and wire socket 5 and annular projection 121 weld.
Electrical heating elements in the present embodiment is up-small and down-big taper cylinder, when vertically installing, can increase the resistance that water outwards flows like this, prolong water time of staying in electrical heating elements, water can fully be heated, when if level is installed, it is low that side can make the electrical heating elements two ends export the high side of a side, and the interior heated water of electrical heating elements inner core is flowed out from the bigger end of diameter, is beneficial to flowing of an interior water.
Embodiment 2
As shown in Figure 2, the electric heating body that electrically heated boiler in the present embodiment is used is sleeved on together by three electrical heating elements 201,202,203 described in the embodiment 1 and constitutes, three electrical heating elements 201,202,203 coaxial installations, and the height of three electrical heating elements 201,202,203 reduces from inside to outside successively, be beneficial to the convection current of water, between three electrical heating elements 201,202,203 the circulation gap of flowing through water arranged.The height of each electrical heating elements and diameter determine that according to the flue volume of electrically heated boilers the resistance wire with different resistance values produces different power.
Also can adopt two or four and above electrical heating elements suit to be combined into electric heating body as required.Adopt three combinations then to make things convenient for and be electrically connected with normally used two-phase or three-phase alternating current, the resistance wire of three electrical heating elements is for being connected in parallel when adopting two-phase alternating current.During for the employing three-phase alternating current, resistance wire one end of three electrical heating elements is electrically connected with three-phase alternating current respectively, and the other end is connected on the zero line of three-phase alternating current jointly.
Claims (8)
1, the electric heating body used of a kind of electrically heated boiler; comprise at least one electrical heating elements; it is characterized in that: described electrical heating elements is cylindric; the helical coil cylindraceous that comprises the resistance wire coiled; coil is encapsulated in the double wall of a columnar waterproofing guaranteeding jacket; between circle that coil is adjacent and the circle and between coil and the waterproofing guaranteeding jacket insulating protective layer is arranged, the resistance wire two ends are connected with the lead of tape insulation protective layer.
2, the electric heating body used of electrically heated boiler as claimed in claim 1, it is characterized in that: described electrical heating elements is more than two, coaxial package has the circulation gap together between the adjacent electrical heating elements.
3, the electric heating body used of electrically heated boiler as claimed in claim 2, it is characterized in that: described coaxial package electrical heating elements together is two.
4, the electric heating body of using as described electrically heated boiler one of in the claim 1 to 3, it is characterized in that: described electrical heating elements is up-small and down-big taper cylinder.
5, the electric heating body of using as described electrically heated boiler one of in the claim 1 to 3, it is characterized in that: described lead is contained in the wire socket, and wire socket and described waterproofing guaranteeding jacket link together.
6, the electric heating body used of electrically heated boiler as claimed in claim 5 is characterized in that: described cable conduct lower end has the below that baffle ring is arranged, and there is screw thread baffle ring to the position of cannula tip.
7, the electric heating body used of electrically heated boiler as claimed in claim 5, it is characterized in that: at described waterproofing guaranteeding jacket inner surface upper/lower terminal annular projection is arranged, described wire socket is connected with described annular projection.
8, the electric heating body of using as described electrically heated boiler one of in the claim 1 to 3; it is characterized in that: described waterproofing guaranteeding jacket is the stainless steel sleeve; be made of inner sleeve and outer sleeve, described insulating protective layer is to be wrapped in the outer polyimide insulative film of resistance wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410080971 CN1589068A (en) | 2004-10-20 | 2004-10-20 | Electric heater for electric heating boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410080971 CN1589068A (en) | 2004-10-20 | 2004-10-20 | Electric heater for electric heating boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1589068A true CN1589068A (en) | 2005-03-02 |
Family
ID=34605107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410080971 Pending CN1589068A (en) | 2004-10-20 | 2004-10-20 | Electric heater for electric heating boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1589068A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8160434B2 (en) * | 2007-02-02 | 2012-04-17 | Luciano Scarzella | System of electrical thermostatation of piping or tanks |
| CN102886956A (en) * | 2011-07-20 | 2013-01-23 | 上海申科技术有限公司 | Heating unit of electric heating laminating machine |
-
2004
- 2004-10-20 CN CN 200410080971 patent/CN1589068A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8160434B2 (en) * | 2007-02-02 | 2012-04-17 | Luciano Scarzella | System of electrical thermostatation of piping or tanks |
| CN102886956A (en) * | 2011-07-20 | 2013-01-23 | 上海申科技术有限公司 | Heating unit of electric heating laminating machine |
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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 | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20050302 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |