CN100494807C

CN100494807C - Infrared type electrical water heater with combined water way

Info

Publication number: CN100494807C
Application number: CNB2005100222173A
Authority: CN
Inventors: 殷洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-05
Filing date: 2005-12-05
Publication date: 2009-06-03
Anticipated expiration: 2025-12-05
Also published as: CN1786609A

Abstract

The invention relates to infrared type combination waterway electric water heater. It belongs to medium no-touch exchange equipment. The electric water heater circumferential is formed by two or more water ways. Inner cavity center is set infrared type electric heater device. Each of the water ways is set internal and external components. Its axial two ends are set water outlet. Its section is arc, and flow direction is waveform. It internal component is rough surface and smeared energy saving coating. Inner cavity and appearance are set support member, rib waterproof pressure and reinforcing. Each of the water ways is aluminium alloy die casting. The electric water heater can combine high efficiency infrared heating element and heat transfer structure; and the heating source is not touched the water; its using is safe; manufacture is simple; cost is low; maintaining is convenient; and it can widely used in family and hotel washroom.

Description

Infrared type electrical water heater with combined water way

(1) technical field: the present invention is the electric heater with the electrical heating water, and belonging to has heat source fluid heater class (F24H) directly not contact switching equipment class (F28D) with heat exchange medium.

(2) background technology: existing electric heater access node structure branch has storage-type and flow-type, and both directly are fixed on electrothermal device in tank or the cavity to contact with water, and cold water is heated through the electrothermal device surface.Electrothermal device has resistance-type, infrared type, PTC formula etc.Resistance-type is enclosed electrothermal tube, is divided into three layers: internal layer is a resistive heater, and the middle level is the insulating materials of parcel, and is outer for isolating anti-creeping metal tube.Thisly directly put electric heater in the what water with electrothermal tube, have following defective: 1. heat makes the thermal efficiency reduce about 25% because of the transmittance process loss.2. electrothermal tube put in the what water long-time, the easily fouling of shell surface, shadow noon heating efficiency, and also can produce the corrosion electric leakage.

It is 60%-80% that the general width of cloth is penetrated element thermal radiation efficient, and the thermal radiation efficient of infrared type electrothermal device can reach 90%.The far infrared radiation temperature can reach about 700 ℃, and novel gluing formula far infrared device then can be competent at more high power high-temperature heating.The infrared type electrothermal device is because the good water channel design that does not match and do not utilize and give full play to benefit, and thus, it is that the electric heater of thermal source has practical value very much that design is penetrated the source with the width of cloth.

(3) summary of the invention: the infrared type electrical water heater with combined water way that the present invention proposes solves existing the conducting heat and the uneasy congruent problem of corrosion electric leakage with the influence of insulation parcel heater that electrothermal tube exists in the what water of directly putting exactly.Its technical scheme is as follows:

Infrared type electrical water heater with combined water way is characterized in that electric heater is provided with the whole water channel that combines around two lobes or the water channel more than two lobes of infrared type electrothermal device; Whole water channel lumen centers infrared type electrothermal device 4 two end supports are on the axial two ends of water channel; Establish internals 1 and outer part 3 in every lobe water channel, both stack internals 1 and outer part 3, and peripheral seal welding or nut 7a are tightly connected, and both form water channel between the interlayer; Drive delivery port 3a on the part outside water channel water (flow) direction two ends, connections that match with fixing threeway in this place or two logical side mouth of a river 9a whenever is tightly connected by adjacent two threeways or two general nut 7b between adjacent two lobe water channels.

Above-mentioned internals, outer part can all adopt spill, are called indent part or outer recessed, and the cross section that both form between the interlayer is an arc, claims arc water channel 2; Waterway wall can be waveform or profile of tooth along water (flow) direction.Above-mentioned internals heating surface can be the face of slightly making a list; And can be coated with infrared high-temperature energy-saving coating material.

Can establish a plurality of supports insulative plates 5 that match with each lobe water channel in above-mentioned inner chamber vertically, the infrared type electrothermal device passes every insulation board centre bore, and supports onboard, has the through hole 5a of distribution on the supports insulative plate.In above-mentioned inner chamber, the internals heating surface can be established many ribs 11; Outer part outer surface is established many muscle 10.In above-mentioned arc water channel, indent part outer surface is established many fins 12.

General 2～4 lobes that adopt of above-mentioned whole water channel are formed, if the whole water channel that adopts two lobes to form, whole electric heater can adopt the whole water channel of overlapping a plurality of two lobes to form.Above-mentioned every lobe water channel all adopts aluminum alloy die casting.Can adopt quartz ampoule infrared type, red far infrared radiation formula or gluing formula far infrared type electrothermal device in the above-mentioned infrared type electrothermal device.Above-mentioned adjacent two lobe peripheries can overlappingly be placed, or suitably reserve the gap.

Beneficial effect of the present invention:

I. adopt the combination water channel of the periphery that adapts with the infrared type electrothermal device, realize the infrared ray electric thermal device of high efficiency heating can be applied in the electric heater.Solved low, the uneasy congruent problem of the existing electric heater thermal efficiency.Ii. adopt the heater periphery to establish the combination channel structure, help to use multiple following augmentation of heat transfer facility: 1. water (flow) direction adopts wave or profile of tooth to flow in the water channel, increases the flow path and the width of cloth and penetrates face; And be in turbulence state in the water channel, its convection heat transfer' heat-transfer by convection effect is best.2. the internals heating surface adopts rough surface, and absorptance is big, and the favorable for absorption width of cloth is penetrated heat.3. the internals outer surface lays fin in the water channel, increases heat-transfer area, heat output.Iii. the internals inner surface is coated with infrared high-temperature energy-saving coating material, can save energy 20%～28%, (oneself is used widely this material on worker's stove at home).Iv. electrical heating element and water are isolated fully, and is safe and reliable.V. adopt multiple facility, guarantee the water channel mechanical strength: be respectively equipped with muscle and rib at internals inner surface and outer part outer surface, and the supports insulative plate that is provided with, all can be in order to hydraulic pressure resistance and increase mechanical strength.Vi. every lobe water channel adopts the integral Al-alloy die casting, and easily manufactured cost is low.Vii. use maintenance side to make: can get final product from the extraction of magnetic cap if infrared tube is changed in light maintenance.If overhaul, can turn on nut, each lobe water channel separately, but just convenient for maintaining.In sum, this patent is the efficient energy-saving electrothermal hydrophone that high efficiency heater element and efficient heat transfer structure combine, and safe in utilization, make simple, cost is low, easy to maintenance.

(4) description of drawings:

Fig. 1 embodiment 1 (two lobes combination arc water channel) vertical view

Fig. 2 Fig. 1 A1-A2-A3-A4-A5-A6 cutaway view

Fig. 3 Fig. 1 B-B cutaway view

Fig. 4 embodiment 1 band threeway or two logical every lobe arc water channel stereograms (containing

mark

4,5,13 part)

Fig. 5 embodiment 1 band threeway or two logical outer recessed stereograms (concave surface is downward)

Fig. 6 embodiment 1 band threeway or two logical outer recessed stereograms (concave upright)

The indent part stereogram (concave surface is downward) of Fig. 7 embodiment 1

Fig. 8 embodiment 2 three lobes launch back current direction figure

Fig. 9 embodiment 3 pintongs launch back current direction figure

(5) specific embodiment:

Embodiment 1: see Fig. 1～7, two lobes combination arc water channel electric heater

See Fig. 2, Fig. 3, the electric heater center is an infrared type electrothermal device 4, periphery is the identical arc water channels of upper and lower two lobes, every lobe arc water channel span is 180 °, establish indent part 1 and outer recessed 3 in it, both stack periphery 6 usefulness nut nut 7a and connect and seal (see figure 4) (also available welding or other structure that is sealedly and fixedly connected).See Fig. 2, the cross section is an arc between indent part 1 and outer recessed 3 both interlayers, forms arc water channel 2, is waveform along the water (flow) direction wall in the arc water channel.See Fig. 1, Fig. 4, magnetic cap 13 is equipped with at infrared type electrothermal device 4 two ends, is placed on (see figure 7) in the 13a of semicircle groove up and down that the periphery 6 of upper and lower water channel 2 matches, in order to insulation with support infrared type electrothermal device 4.

See Fig. 1, see Fig. 2, Fig. 4, every lobe arc water channel axially (along water (flow) direction) both ends of the surface all are fixed with threeway 9 ₁, 9 ₂Or 9 ₃, 9 ₄, threeway side opening 9a matches to merge with outer recessed 3 end face intake-outlet 3a and is communicated with, and from then on Inlet and outlet water passes in and out the arc water channel.If then be die cast as one herein with aluminum alloy die casting.When the combination of upper and lower two lobes, only needing to be sealedly connected and fixed with the threeway of two lobes or two a logical nut nut 7b is-body, and two lobe peripheries then can get final product in overlapping placement, and can suitably reserve gap (can not seal).See Fig. 2, pressure cold water is from threeway 9 ₁Enter from the top down, arc water channel 2 above threeway side opening 9a of this place and outer recessed intake-outlet 3a flow into, more in turn through threeway 92,93, below arc water channel 2, from threeway 9 ₄Lower end outlet flow out hot water (seeing water (flow) direction shown in Fig. 2).All there is a then available plug of the no mouth of pipe to seal in each threeway.If need big flow water, then can with on, sewer parallel connection, i.e. threeway 9 ₁Or 9 ₄Water inlet simultaneously is simultaneously through upper and lower water course 2 outside threeway 92 and 93 is flowed out recessed 3.Intake-outlet 3a is also shown in Fig. 5.

See Fig. 2, Fig. 3, also claim the width of cloth to penetrate in the chamber at inner chamber 8, lay at the arc maximum and lay a plurality of supports insulative plates 5 vertically, infrared type electrothermal device 4 passes from its endoporus, and on the gripper shoe.Open distribution through hole 5a on the plate, can make in the inner chamber width of cloth penetrate heat and air themperature is even.See Fig. 2, indent part 1 inner surface heating surface 1a is a matsurface, and is coated with infrared high-temperature energy-saving coating material.See Fig. 3, indent part 1 inner surface is along circumferentially establishing many ribs 11 in the width of cloth is penetrated the chamber, and each rib is the waveform (see figure 7) that matches with indent part 1 waveform vertically, when rib 11 need pass full circle supports insulative plate 5, at the opening 5b of this place (seeing Fig. 3, Fig. 4).See Fig. 2, recessed outside 2 outside along circumferentially establishing many muscle 10, and each muscle is the waveform (see figure 6) that matches with outer recessed 3 outer surface waveform vertically, and both are all in order to hydraulic pressure resistance and reinforcement water channel.See Fig. 1 and Fig. 3, in every lobe arc water channel 2, indent part 1 outer surface, along circumferentially establishing two long fins 12, every fin shape vertically matches with the water channel waveform (seeing Fig. 1 dotted line), in order to increase heat-transfer area and heat output.

The above-mentioned electric heater that is combined by two lobe arc water channels can be described as a unit, in order to improve water temperature, whole electric heater can be established a plurality of overlapped elements, because of every unit closely is the plane by threeway place two above and below, each cells overlap of favourable what keeps flat, and being tightly connected with adjacent Unit two three port nut 7b gets final product.

Embodiment 2: see Fig. 8, the electric heater of three lobes combination arc water channel.

This electric heater center infrared type electrothermal device 4, periphery are that the connection of three lobe arc water channels combines.Every lobe arc water channel span is 120 °.If three lobe water channels serial connection, then flow path is as follows, see Fig. 8 (with three lobe water channel laid out flat): cold water enters from threeway 14.1 imports, in turn through water channel 15.1, threeway 14.2,14.3, water channel 15.2, threeway 14.4,14.5, water channel 15.3, sends hot water from threeway 14.6 outlets.(seeing the moving-wire of current shown in Fig. 8).All the other structures and embodiment 1 are identical.

Embodiment 3: see Fig. 9, the electric heater of pintongs combination arc water channel.

This electric heater center infrared type electrothermal device 4, periphery are that the connection of pintongs arc water channel combines.Every lobe arc water channel span is 90 °.If pintongs water channel serial connection, flow path following (seeing Fig. 9 pintongs water channel laid out flat) then: cold water enters from threeway 16.1 imports, through water channel 17.1, threeway 16.2,16.3, water channel 17.2, threeway 16.4,16.5, water channel 17.3, threeway 16.6,16.7, water channel 17.4, send hot water in turn from threeway 15.8 outlets.(seeing the moving-wire of current shown in Fig. 7).All the other structures and embodiment 1 are identical.

Claims

1. infrared type electrical water heater with combined water way is characterized in that electric heater is provided with the whole water channel that is combined into around two lobes or the water channel more than two lobes of infrared type electrothermal device; Infrared type electrothermal device (4) two end supports of whole water channel lumen centers is on the axial two ends of water channel; Establish internals (1) and outer part (3) in every lobe water channel, both stack peripheral seal welding or nut (7a) is tightly connected internals (1) and outer part (3), and both form water channel between the interlayer; Drive delivery port (3a) on water channel outside the water (flow) direction two ends on the part into, connections that match with the side mouth of a river (9a) of the fixing threeway in this place or two on logical is tightly connected by adjacent two threeways or two nuts (7b) that lead between every adjacent two lobe water channels.

2. by the described electric heater of claim 1, it is characterized in that internals, outer part are spill, internals (1) and outside both cross sections of forming between the interlayer of part (3) be arc, title arc water channel (2); Waterway wall is waveform or profile of tooth along water (flow) direction.

3. by the described electric heater of claim 1, it is characterized in that the internals heating surface is the face of slightly making a list; And be coated with infrared high-temperature energy-saving coating material.

4. by the described electric heater of claim 1, it is characterized in that in inner chamber, establishing vertically a plurality of supports insulative plates (5) that match with each lobe water channel, the infrared type electrothermal device passes every insulation board centre bore, and supports onboard, has the through hole (5a) of distribution on the supports insulative plate.

5. by the described electric heater of claim 2, it is characterized in that in inner chamber the internals heating surface is established many ribs (11); Outer part outer surface is established many muscle (10).

6. by the described electric heater of claim 2, it is characterized in that in the arc water channel internals outer surface is established many fins (12).

7. by the described electric heater of claim 1, it is characterized in that whole water channel adopts the 2-4 lobe to form; The whole water channel that adopts two lobes to form, whole electric heater adopt the whole water channel of overlapping a plurality of two lobes to form.

8. by the described electric heater of claim 1, it is characterized in that every lobe water channel adopts aluminum alloy die casting.

9. by the described electric heater of claim 1, it is characterized in that described infrared type electrothermal device adopts quartz ampoule infrared type, far infrared radiation formula or gluing formula far infrared type electrothermal device.

10. by the described electric heater of claim 1, it is characterized in that the overlapping placement of adjacent two lobes periphery, or suitably reserve the gap.