CN201129844Y

CN201129844Y - Electric heating apparatus of quick heating electric water heater without heat container

Info

Publication number: CN201129844Y
Application number: CNU2007201941328U
Authority: CN
Inventors: 俞益庭; 张暴洪
Original assignee: Ningbo Tianming Electronic Co Ltd
Current assignee: Ningbo Tianming Electronic Co Ltd
Priority date: 2007-11-19
Filing date: 2007-11-19
Publication date: 2008-10-08
Anticipated expiration: 2017-11-19

Abstract

The utility model relates to a tube-shaped electric heating device (1) of a novel instantaneous electric hot water heater without a hot container, which is an integral compound body of a water-filled pipe and tube-shaped electric heating element. The tube-shaped electric heating device (1) comprises a hollow column-shaped electric heating element (2) whose outer layer is a water jacket (4) which is wrapped around the tube-shaped electric heating element which is arranged in the electric heating element (2), and the central axial line is provided with a central water channel (3) which is a rigid metal water pipe (11), one end of the rigid metal water pipe (11) which takes bending shape is used as a water outlet pipe, and the other end which is made into a bending communicating pipe (12) which leads the metal water pipe (11) of the central water channel (3) and the water channel of the water jacket (4) to be mutually communicated. The hollow column-shaped electric heating element (2) comprises a rigid insulating material supporting stand (3), an electric-heat wire (15) which is wrapped on the electric heating element (2) , an extraction electrode (15) and ceramic end covers (5) on both ends. The tube-shaped electric heating device (1) of the utility model has the advantages that heat quantity which is radiated to external atmosphere by the hot water heater and fresh water which can flow out at any time are greatly reduced, which can be used as soon as being put, the tube-shaped electric heating device (1) can not only reach energy-saving effect, but also can provide sanitary and health hot water which is supplied without limitation and whose temperature reaches standard.

Description

A kind of electric heater unit that does not have the quick-heating type electric water heater of hot courage

[affiliated technical field]

The utility model relates to a kind of electric heater, particularly relates to the electric heater of quick heat supply water.This water heater can be equipped with as bath apparatus and kitchen heat supply wetting system for family, also can use for units such as service trade, commerce.Water heater of the present utility model is a kind of electric heater that does not have hot courage, and more particularly the utility model is the core of this electric heater, that is, and and the electric heater of electric heater.

The utility model is a kind of core of not having the quick-heating type electric water heater of hot courage, promptly, electric heater, it comprises heating wire, insulating materials, metal tube, the access way of water, its heating target is not the hydrostatic that leaves the bigger water receiver the inside of volume in, but the flowing water that directly in pipeline, flows.When water flows, just can obtain heat temperature raising in pipeline, need not to install the cistern of water storage, the instant heating courage.Water heater volume of no hot courage is little in this, and dynamic water is heated evenly when heating, can make cold water obtain heating apace, has improved the thermal efficiency.The what is more important no matter when hot water that flows out of water heater all is fresh instant heating, can guarantee that people enjoy real health and comfortable hot water.

[background technology]

Existing electric heater is most for hot courage, the heat resistance type electrical bar that it had is to be immersed in the empty hot courage of water storage casing the inside when work, surrounded by water all around, the heat that heating wire produced outwards conducts to the cold water in the storage tank by insulating materials and metal tube, makes it to be heated, to heat up.This water heater has the one long period that adds hot standby before use, and more on the one hand, the amount of water is bigger, and the volume of storage tank is also just big.Volume is bigger, and heat radiation has just the more reduced the thermal efficiency to external world, wastes energy.On the one hand, the electric heater of storage-type stays a fairly large number of surplus water sometimes, and is temporarily have more than is needed, causes the waste of heat energy again.And that the no surplus water of heating for multiple times also can go bad is corrupt smelly, also can unhealthful and health as continuing to use.This part residue is hesitated to discard with the hot water that does not fall, and with then harmful, causes the waste of heat energy and resource.

Least welcome is its bigger duty volume, and for the big inadequately resident of living space, finding a place for so, a huge monster also is a no small difficult problem really.

[summary of the invention]

The utility model is a kind of tubular electric heater that does not have hot courage electric heater, it includes heating, accept the water-filled pipe that heat that heating sends heats up heated current, electric heater as the core of described electric heater is the cylinder of the hollow of a cast, and it is the complex of the hydroelectric integration of water-filled pipe and tubular heating.

Its structure is as follows:

The cylinder that the tubular electric heater general shape of electric heater is the hollow of random length.The center of hollow cylinder is a central water channel, and hollow cylinder has the water jacket with tubular heating outsourcing, it has water inlet to be used to introduce cold water to described water jacket as outer water channel, it is connected with central water channel as inner lead, the communicating pipe that both are communicated with is arranged between water channel and the inner lead outside, centre gangway as inner lead discharges hot water by delivery port, described water inlet and delivery port are close to the end, cast electric heater unit the same side that is disposed in electric heater, and its end opposite is communicating pipe.

The hollow cylinder of tubular heating has metal outer wall and inwall, in the ring wall inner chamber that constitutes between the Liang Bi, be provided with thermo electric material, formed a central water channel by the space of metal inner surface ring bag, described centre gangway itself can be a metallic water pipe as inner lead, metal inner surface self is the part of this metallic water pipe just, its end is the water side as delivery port, the water side can be bending, and the end opposite of metallic water pipe water side then becomes the communicating pipe that is communicated with inner lead and outer water channel.Be through with an outlet pipe in the centre gangway of the hollow cylinder of the tubular electric heater of described random length, the water jacket that the outside of the metal outer wall of heating hollow cylinder is become outer water channel surrounds, described outer water channel can spirality, also can be " through-type ".The scheme of screw type can make water channel prolong, and makes the cold water that enters by preheating equably, the heat that makes the cold water that has just entered fully absorb heater to be sent.Both absorbed the heat that heating sends as the cold water in the water jacket of outer water channel; make the cold water that has just entered be able to preheating, also heating is played a protective role, make its unlikely cause thermal damage of crossing; the heat that electric heater integral body is outwards distributed reduces greatly, plays energy-conservation effect.Here it is of the present utility modelly replaces insulation material to play the energy-conservation new ideas of heat-blocking action with the cold water layer.

The cylinder of the hollow of described tubular heating includes metal outer wall, metal inner surface and fully fills up the insulating materials of inner annular cavity therebetween and be embedded in heating wire in the insulating materials.The outside integral body of the metal outer wall of heating is surrounded by the water jacket of outer water channel.There is the end capping at the two ends of tubular heating hollow cylinder, the ring body thickness of the hollow cylinder of the radial dimension reflection heating of end capping, and the exit of its power supply heated filament fixes thereon.The end capping can be the material of pottery.The tubular cylinder of hollow ring based on ceramic material radius size thickness is exactly the cylinder of the hollow of described heating, and it is the ring cavity part that is constituted by between metal tube outer wall and the inner wall of metal tube.Metal outer wall outside at electric heating hollow ring cylinder partly also has one deck surrounding layer, and that is exactly a water jacket.

The insulating materials that fully fills up in the inner annular cavity of the tubular cylinder of heating hollow ring can be the scheme of two kinds of layouts:

1. all be pulverous insulator, include metal outer wall, metal inner surface as the cannulated circular cylinder of electrical heating elements and fully fill up the powdered insulation material of internal cavities therebetween and be embedded in heating wire in the insulating materials in this scheme, it is the scheme that does not adopt spiral insulator hollow ring rigid backbone.

2. described insulating materials adds the pulverous insulation filling material in top by the tangible hollow ring rigid insulation body as skeleton and forms, in such scheme, skeleton is the carrier of heating wire, be distributed with on it for holding heating wire, and the helicla flute that allows it be fastened, on its termination, two ends, have respectively and link to each other with heating wire, the power supply heated filament is subjected to the extraction electrode of electricity, between the outer surface of the inner surface of metal outer wall and hollow ring rigid body, closely be filled with pulverous insulating materials, provide fixing closely between the metal outer wall for hollow ring rigid insulation body and its outsourcing so that skeleton and heating wire can be fixed in the ring pipe of electric heater metal securely.With the capping of ceramic fixture end extraction electrode closely is fixed on each self-corresponding position of tubular electric heating element both ends.

Be furnished with for the helicla flute that holds and coil heating wire on the surface as the hollow ring rigid body of insulator skeleton, helicla flute is good more than two, and they are distributed in described hollow ring with multiple-threaded form and insulate on the surface of rigid body.Change a number of spiral, changed the heating wire number of share of stock that is wrapped on the rigid body exactly, make power can obtain increase and decrease.

Each helicla flute embeds accordingly and is fixed with a heating wire.Single heating wire itself can be a chevilled silk, also can be taenidium, is good to select taenidium, the back is heated stress influence easily and ruptures, and taenidium just has telescopic leeway under the situation of thermal stress because the two ends of chevilled silk are fixed, the difficult fracture, the reliability height.The power of the heating wire of every helical form coiling can be identical, also can be to differ in size, and like this, according to permutation and combination, can arrange out more power arrangement, is convenient to the power of product is done multifarious selection.

The overall shape of described tubular electric heater can be linear, and it can lean on the angle and make the layout of direction anyhow along the corner in the house, and the duty volume is few, saves installing space greatly.

The cross section of described tubular heating is best with the circle, certainly, also can be other geometry.

The principal character of the above-mentioned tubular electric heater of conduct is the way of supplying water with quick response of promptly putting instant heating, hot water can endless supply temperature up to standard of the monnolithic case of cast and it.Only need the time in tens seconds from opening Draw off valve to going out hot water.It is equipped with the various pipe switch and the electric switch that do not show among the figure and also has various circuit; as temperature-control circuit, power circuit, on-off circuit, indicating circuit, leakage protection circuit, the holding circuit etc. of cutting off the water, constituting global shape is the electric heater of the quick-heating type of elongate tubular.Certainly, we still adopt identical structure can make it the structure of the blocks of compact after the diameter of tubular electric heater is amplified, and have diversity like this in the selection of the profile of its electric heater of making.

The utility model has the advantages that: 1. be the heating means heating that electric heater adopts no hot courage, can flow out fresh hot water rapidly.2. the overall volume that is electric heater has been dwindled greatly.3. because water jacket is arranged, and the water in the water jacket is flowing cold water, and it plays the thermal relief protective effect to heating, and the safety coefficient of electric heating tube has enough guarantees.4. adopt multiple thread is arranged in the scheme of heating wire, just can implement the convenient of power selected and control to the selection of a number (being radical) of resistance wire, the shape of heating wire (referring to select for use chevilled silk still to select taenidium for use), like this, the selection scheme of product power just becomes varied.5. energy-saving effect is obvious, it has almost all utilized the traditional electrical water heater on to the preheating of the cold water that just entered to the heat that ambient atmosphere distributes in when work, reason that this programme can save this part heat energy that Here it is, it has reduced the loss of energy.6. more on the one hand, the scheme that random length tubulose of the present utility model is arranged can provide the design of multiple shapes such as linearity, bending by designer's needs, on technical performance, is good with linearity.Scheme Selection with can satisfy in the practicality with the building decoration art on different demands, according to the needs of practicality, also integral body can be made, but its volume is far smaller than the electric heater of traditional storage-type as traditional square or columnar electric heater.The hot water amount that big again its single of its reserves of electric heater of tradition storage-type can be put usefulness also is limited, and electric heater of the present utility model can be emitted the hot water that temperature reaches the shower requirement for a long time endlessly.

[Figure of description brief description]

Fig. 1 is the orthographic drawing of the utility model embodiment 1 tubular electric heater.

Fig. 2 is the stereoscopic figure of Fig. 1 embodiment.

Fig. 3 is the stereogram of the hollow cylinder shape heating of the utility model embodiment.

Fig. 4 is the positive view of Fig. 1 embodiment.

The three-dimensional cutaway view of Fig. 5 embodiment 1.

Fig. 6 A is the stereogram that twines the hollow ring rigid insulation body skeleton of heating wire among Fig. 1 embodiment.

Rigid insulation body skeleton two is equipped with the stereogram of plum blossom support among Fig. 6 B reflection Fig. 1 embodiment.

Fig. 7 is the positive view of the utility model second embodiment.

[specific embodiment]

What show in the accompanying drawing is the most preferred embodiment of cast electric heater unit of a quick-heating type electric water heater of no hot courage of the present utility model.What the utility model was related is a kind of tubular electric heater of quick-heating type electric water heater.It includes heating, accept the water-filled pipe that heat that heating sends heats up heated current, and its maximum feature is exactly its tubular-shaped structures, and it is the compound incorporate tubular electric heater of a kind of water power.

Electric heater 1 monnolithic case of this electric heater is tubular structure; it is equipped with the various pipe switch and the electric switch that do not show among the figure and also has various circuit; as temperature-control circuit, power circuit, on-off circuit, indicating circuit, leakage protection circuit, the holding circuit etc. of cutting off the water, constituting global shape is electric heater tubular, quick-heating type, no hot courage.

Fig. 1 shows is orthographic drawing as the tubular electric heater 1 of its core, is its stereogram and Fig. 2 shows.The global shape of the tubular electric heater 1 of this electric heater is to be tubular-shaped structures.Its structure is the hollow cylinder shape, it is included in outer water jacket layer 4 (not showing among Fig. 1, Fig. 2), with at the interior hollow tubular heating 2 that is surrounded by water jacket layer 4 (among Fig. 1, Fig. 2 show), and at the center water channel metal tube 11 as inner lead at heating 2 centers.

Fig. 3 is the three-dimensional cutaway view of the hollow cylinder shape heating 2 of the utility model embodiment 1.The heating 2 that its shows is remainders of removing later tubular electric heater 1 of water jacket 4 in the subsequent figures and center water channel metal tube 11, communicating pipe 12.

Fig. 4 shows the whole longitudinal sectional view of tubular electric heater 1.Fig. 5 shows the three-dimensional cutaway view of tubular electric heater 1.Be furnished with central water channel 3 on the axial line position of the hollow cylinder of described heating 2, the metallic water pipe 11 of a rigidity in it, the one head is bending as outlet pipe, and outlet pipe has delivery port 7; Crooked communicating pipe 12 is made in its other end, and it communicates with each other the metallic water pipe 11 of central water channel 3 and water jacket 4.The water route of in water jacket 4, flowing we be referred to as outside water channel.What constitute central water channel 3 is its interior metallic water pipe 11, and the water routes in the metallic water pipe 11 are referred to as inner lead.Communicating pipe 12 is exactly the connecting pipe between outer water channel and the inner lead.The water inlet 6 of linking up mutually with water jacket 4 is arranged on the described tubular electric heater 1, the delivery port 7 of linking up mutually with the metal tube 11 of central water channel is arranged on the tubular electric heater 1.Water inlet 6 and delivery port 7 are arranged at the same side of tubular electric heater 1, are convenient to install connect.Circular cylinder end wall as the hollow cylinder of the heating 2 of tubular electric heater 1 is a ceramic end cap 5, and itself is exactly the capping of electric heating element both ends and the exit of electrode 16.As seen, the radial dimension of the ceramic fixture end cap 5 at heating 2 two ends has reflected the thickness of the ring cavity of heating 2 annular hollow bar shapes in fact just from Fig. 3, Fig. 4 and Fig. 5.The heating 2 that is comprised in the hydroelectric integration complex of described tubular electric heater 1 hollow has tubular metal outer wall 8 and metal inner surface 9, fully fill up insulating materials in the internal cavities therebetween, used insulating materials is hollow ring insulation rigid body skeleton 13 and pulverous insulating materials 10.In the space between the outer surface of the inner surface of the metal outer wall 8 of heating 2 and hollow ring rigid body 13, closely be filled with pulverous insulating materials 10 in order to fixedly hollow ring insulation rigid body skeleton 13 and heating wire 15 thereon.Be distributed with for the helicla flute 14 that holds heating wire 15 on the hollow ring insulation rigid body skeleton 13, helicla flute 14 has three.Tubular electrical heater element 2 inside are as the hollow ring insulation rigid body 13 that three-start screw groove 14 is arranged of skeleton, be fixed with on its termination, two ends for the fixing plum blossom support 17 of extraction electrode, that is to say, use it, can have three strands of heating wire to be fastened on the surface of hollow ring rigid body 13, every heating wire 15 all uses spiral taenidium.On hollow ring insulation termination, rigid body skeleton 13 two ends, have with heating wire 15 heated filament 15 that links to each other, powers and be subjected to electric extraction electrode 16.Extraction electrode 16 is to draw from ceramic end cap 5 by the plum blossom support 17 that is fixed on the hollow ring insulation termination, rigid body 13 two ends again, and plum blossom support 17 is to amplexiform mutually with ceramic end cap 5 to be connected and fixed.The power of heating wire is bigger, can arrange that general power reaches 8000 watts heating wire.With ceramic fixture end cap 5 extraction electrode 16 closely is fixed on each self-corresponding position, annular electric heating tube two ends.

Fig. 6 A has shown that hollow ring insulation rigid body skeleton 13 connects extraction electrode 16.Be distributed with for the helicla flute 14 that holds heating wire 15 on the hollow ring insulation rigid body skeleton 13, helicla flute 14 has three.Extraction electrode 16 is to arrange three on each termination.Fig. 6 B has shown that hollow ring insulation rigid body skeleton 13 connects the plum blossom support 17 that is fixed in its two ends.

Fig. 7 has shown the longitudinal sectional view of the electric heater 1 of the utility model second embodiment.The main distinction of it and first fact Example is to be provided with spiral water channel skeleton 18 in the outer water channel in its water jacket 4, makes the spiral waterway structure of outer water channel.The advantage of such structural configuration is that outer water channel has prolonged length, make current more evenly, absorb more preheating quantity.Other architectural feature is all identical with first embodiment of the present utility model.

Protection domain of the present utility model is not limited by among the embodiment scope of disclosure; any various modifications that does not break away from the claim protection domain of present patent application all may constitute the utility model infringement of patent right, as the change to the pipe section shape of the tubular electric heater of hydroelectric integration of the present utility model; or to tubular electric heater carry out polynary stack (as with a tubular electric heater arrange as the parallel stack that a unit carries out on units in series and the above-below direction more than two yuan or two yuan) the electric heater product of several unifications of being constituted all is to bring the trouble that causes infringement.

Claims

The cast electric heater unit of a no hot courage quick-heating type electric water heater, it includes heating and heated current are heated up rapidly and can supply with the water-filled pipe of use immediately, it is characterized in that:

A. the core of described electric heater is the electric heater unit (1) of a cast, and it is the hydroelectric integration complex of water-filled pipe and cast heating;

B. described complex comprises the heating (2) of hollow cylinder shape, its skin is the water jacket (4) of the tubular heating of outsourcing (2), it constitutes outer water channel, the center of the heating of described hollow cylinder shape (2) is central water channel (3), it constitutes inner lead, and the ring cavity between outer water channel and the inner lead is tubular heating (2);

C. described one is provided with thermo electric material and insulating materials in its cylinder ring wall inner chamber of cast heating (2) of water jacket (4) ring bag;

D. described cast heating (2) has a central water channel (3), its end is provided with delivery port (7), the interface channel (12) that its other end has the central water channel (3) with water jacket of outer water channel (4) and inner lead to connect, an end of described water jacket (4) is provided with water inlet (6).
2. the cast electric heater unit of no hot courage quick-heating type electric water heater as claimed in claim 1 is characterized in that: described outer water channel is the waterway of screw type, between water jacket (4) and metal outer wall (8) spiral-shaped water channel skeleton (18) is housed.
3. the cast electric heater unit of no hot courage quick-heating type electric water heater as claimed in claim 1 is characterized in that:

Described water inlet (6) and delivery port (7) are close to the end of the same side of the cast electric heater unit (2) that is disposed in electric heater (1), and its end opposite is communicating pipe (12).
4. the cast electric heater unit of no hot courage quick-heating type electric water heater as claimed in claim 1 is characterized in that:

The heating (2) that comprises in the hydroelectric integration complex cylinder of described hollow has tubular metal outer wall (8) and metal inner surface (9), fully fill up insulating materials (10) in the internal cavities therebetween, in insulating materials (10), be embedded with heating wire (15), the central authorities of described hollow cylinder heating (2) are through with an outlet pipe (11), and are surrounded by described water jacket (4) as the outside of the metal outer wall (8) of heating.
5. the cast electric heater unit of no hot courage quick-heating type electric water heater as claimed in claim 1, it is characterized in that: the described insulating materials that fully fills up in heating metal outer wall (8) the inner loop body cavity is tangible hollow ring insulation rigid body (13) and pulverous insulating materials (10), on tangible hollow ring insulation rigid body (13), have for the helicla flute (14) that holds heating wire, on its termination, two ends, have with heating wire (15) and link to each other, power supply heated filament (15) is subjected to the extraction electrode (16) of electricity, is filled with pulverous insulating materials (10) at the inner surface of metal outer wall (8) with in as the cavity between the outer surface of the hollow ring rigid body (13) of heating wire helical mount.
6. the cast electric heater unit of no hot courage quick-heating type electric water heater as claimed in claim 5, it is characterized in that: more than two, they are distributed on the surface of described hollow ring rigid body (13) with multiple-threaded form at the last helicla flute (14) that supplies to hold and coil heating wire (15) of described hollow ring insulation rigid body (13).
7. say the cast electric heater unit of described no hot courage quick-heating type electric water heater as claim 5 or 6, it is characterized in that: described multiple-threaded helicla flute (14) has three, and they are with the arranged in form of three-start screw.
8. as the cast electric heater unit of claim 4 or 5 or 6 described fast no hot gallbladder-heat formula electric heaters, it is characterized in that: described heating wire is along its elongated bearing of trend self spring-like in the shape of a spiral.
9. the cast electric heater unit of no hot courage quick-heating type electric water heater as claimed in claim 7 is characterized in that: the power of its each root heating wire is different in the heating wire that described three-start screw is arranged.
10. as the cast electric heater unit of claim 1 or 2 or 3 or 4 described no hot courage quick-heating type electric water heaters, it is characterized in that: the overall shape of described tubular electric heater is a column type.