CN201034382Y - Water heater heat-exchanging device - Google Patents
Water heater heat-exchanging device Download PDFInfo
- Publication number
- CN201034382Y CN201034382Y CNU200720078954XU CN200720078954U CN201034382Y CN 201034382 Y CN201034382 Y CN 201034382Y CN U200720078954X U CNU200720078954X U CN U200720078954XU CN 200720078954 U CN200720078954 U CN 200720078954U CN 201034382 Y CN201034382 Y CN 201034382Y
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- water heater
- cylinder
- cover plate
- heater heat
- heat exchanger
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Abstract
The utility model discloses a water heater heat exchanger. The periphery of a burner (7) is spirally surrounded with an elliptical flat pipe (8) which is welded with a stainless steel outer cylinder (9) in the outside. The utility model welds a spiral coil, which includes tubular parts, and the stainless steel outer cylinder together to form the heat exchanger. And an infrared radiator (burner) is arranged in the middle of the heat exchanger. Since the utility model of the heat exchanger is provided with the geometric size, the shape, the used materials and the structure, the utility model is meant to provide a heat exchanger which makes the whole machine thermal efficiency higher than 98%, and is low temperature resistant, anti-corrosion and small.
Description
Technical field
The utility model relates to water heater, especially relates to a kind of heat-exchange device of Gas Infrared radiation heat transfer of water heater.
Background technology
At present, the structure of the heat exchanger that the quick formula water heater of combustion gas is used is that heating clamber and Heat Room are made cylindrical shell with the fine copper plate, and wears on cylindrical shell around copper plumbing, and in working order down, heat exchange mainly by the fin in the Heat Room, is carried out convection current to be heated, and accounts for 85%; The coil pipe in the cylindrical shell heating clamber wall and the outside thereof carries out heat exchange (radiation+convection current) and accounts for 15%; Its overall thermal efficiency has only about 84%.If need further to strengthen the heat exchange area or the quantity of fin in order to improve the thermal efficiency, but following point can occur: 1, the waste heat of fin can cause managing the interior generation phenomenon of " afterwards boiling " when stopping heat supply water; 2, owing to further reduced the exhaust gas temperature of water heater, will produce the cold end corrosion phenomenon; 3, the heat exchanger volume will increase.
Summary of the invention
The purpose of this utility model is for water heater provides a kind of complete machine thermal efficiency that makes greater than 98%, and can resist cold end corrosion, and volume is little, by the water heater heat-exchange device of infrared radiation heat exchange.
In order to achieve the above object, the utility model adopts following technical scheme: a kind of water heater heat-exchange device, at the outer spiral surrounding of placing of burner oval flat tube is arranged, and helical ring is wound with oval flat tube and outside stainless steel urceolus welding.
Described burner is made of inner cylinder, outer cylinder, ring flange, inner cover plate and outer cover plate, one end of wherein inside and outside coaxial stainless steel cylinder is welded on the ring flange respectively, their other end is respectively by inner cover plate and outer cover plate sealing, the spacing of inside and outside cylinder is 2.0mm-4.0mm, is respectively arranged with strip hole and circular port outside on the cylinder outer surface; The inner cylinder outer surface is provided with circular port.
Its horizontal direction transpostion interval of described outer cylinder upper edge is distributed with strip hole array and array of circular holes, and every group leader's bar hole array and array of circular holes are made of a plurality of strips hole and a plurality of circular port respectively.
Be evenly distributed with big small circular holes on the described inner cylinder outer surface at interval.
Be connected with reference column between described inner cover plate and the outer cover plate.
The utility model water heater heat exchanger adopts by the oval flat tube of many groups spiral, and constituting tubular member by welding procedure becomes heat exchanger.Install fully-premixed burner (infrared radiator) at heat exchanger middle part, form infrared radiation and high-temperature flue gas by burner and heat cold water in the tubular member.Oval flat tube in the described heat exchanger is to be made of 5 groups to 11 groups spiral coils, by stainless steel welding, spiral coil and stainless steel urceolus is welded to form condensed heat exchanger.Described oval stainless steel flat tube, sectional dimension are major axis 30～50mm, minor axis 10～30mm, material thickness 1.2～2.5mm; Turn to spiral coil by equipment.Then, spiral coil and stainless steel urceolus are combined,, be welded to form heat exchanger by stainless steel welding.Then complete pre-mixing type burner (infrared radiator) is placed in the heat exchanger, carry out the heat-exchanger rig of 360 ° of heating.
Spiral coil and stainless steel urceolus that the utility model is formed tubular member are welded to form heat exchanger, and at the heat exchanger middle part infrared radiator (burner) are installed.Because the utility model heat-exchanger rig has above-mentioned physical dimension and shape and used material and structure, thereby determined it to have to provide a kind of complete machine thermal efficiency that makes, and can resist cold end corrosion, the heat exchanger that volume is little greater than 98%.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of burner in the utility model;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the shape assumption diagram of outer cylinder in the burner in the utility model;
Fig. 5 is the shape assumption diagram of inner cylinder in the burner in the utility model.
The specific embodiment:
The water heater heat-exchange device structure of the utility model water heater is seen Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5: a kind of water heater heat-exchange device, the outer spiral surrounding of placing at burner 7 has oval flat tube 8, and helical ring is wound with oval flat tube 8 and outside stainless steel urceolus 9 welding.Described burner 7 is made of inner cylinder 1, outer cylinder 2, ring flange 3, inner cover plate 5 and outer cover plate 6, one end of wherein inside and outside coaxial stainless steel cylinder 1,2 is welded on respectively on the ring flange 3, their other end is respectively by inner cover plate 5 and outer cover plate 6 sealings, the spacing of inside and outside cylinder 1,2 is 2.0mm-4.0mm, is respectively arranged with strip hole a and circular port b on outer cylinder 2 outer surfaces; Inner cylinder 1 outer surface is provided with circular port c.Its horizontal direction transpostion interval is distributed with strip hole array and array of circular holes in outer cylinder 2 upper edges, and every group leader's bar hole array and array of circular holes are made of a plurality of strips hole a and a plurality of circular port b respectively.On inner cylinder 1 outer surface, be evenly distributed with big small circular holes c at interval.Between inner cover plate 5 and outer cover plate 6, be connected with reference column 4.Outer cylinder 2 diameters are φ 60mm～φ 90mm, and length is 100mm～200mm, and thickness is 0.35mm～1mm, and the slot a on the tube outer surface is 0.5mm * 6mm, quantity 〉=550 outside, and circular port b is φ 0.7mm, quantity 〉=660; Inner cylinder 1 diameter is φ 53mm～φ 83mm, and length is 93mm～193mm, and thickness is 0.35mm～1mm; Small circular holes c on inner cylinder is φ 2.2mm, quantity 〉=200, and big circular port is φ 3mm, quantity 〉=200.
At first, with tooling device it is pressed into oval flat tube 8 then by the single group of equipment coiling stainless steel spiral coil; Then 5-11 is organized stainless steel spiral coil 8 and be welded to form heat exchanger with stainless steel urceolus 9.
The utility model carries out flameless combustion after the fuel gas after fully premixed flows in the burner 7 in working order down; When the burner surface temperature reached 850-900 ℃ high temperature, just outside infrared radiation heated the heat exchanger that is made of the oval flat tube 8 of many groups spiral and the air in the burner hearth simultaneously, and forms high-temperature flue gas; And high-temperature flue gas heats the heat exchanger that the oval flat tube of many group spirals constitutes once more.The heat exchanger that the oval flat tube of many group spirals constitutes will be subjected to the heating of heat radiation and high-temperature flue gas simultaneously, and wherein radiation efficiency can reach 45%, and the high-temperature flue gas efficiency of heating surface will be greater than 50%.Therefore, the utility model provides a kind of complete machine thermal efficiency that makes greater than 98% for water heater, and can resist cold end corrosion, the heat exchanger that volume is little.Because this structure is because smoke density is low, and then acid condensate water is more, if adopt the just corrosion easily of traditional red copper.And adopting stainless steel now as coil pipe, this stainless steel disc pipe has acidproof, resistant to elevated temperatures characteristics.
Claims (6)
1. water heater heat-exchange device, it is characterized in that: the outer spiral surrounding of placing at burner (7) has oval flat tube (8), oval flat tube (8) and outside stainless steel urceolus (9) welding.
2. water heater heat-exchange device according to claim 1, it is characterized in that: described burner (7) is made of inner cylinder (1), outer cylinder (2), ring flange (3), inner cover plate (5) and outer cover plate (6), one end of wherein inside and outside coaxial stainless steel cylinder (1,2) is welded on respectively on the ring flange (3), their other end is respectively by inner cover plate (5) and outer cover plate (6) sealing, the spacing of inside and outside cylinder (1,2) is 2.5mm-3.5mm, is respectively arranged with strip hole (a) and circular port (b) on outer cylinder (2) outer surface; Inner cylinder (1) outer surface is provided with circular port (c).
3. water heater heat-exchange device according to claim 1, it is characterized in that: its horizontal direction transpostion interval is distributed with strip hole array and array of circular holes in outer cylinder (2) upper edge, and every group leader's bar hole array and array of circular holes are made of a plurality of strips hole (a) and a plurality of circular port (b) respectively.
4. water heater heat-exchange device according to claim 1 is characterized in that: be evenly distributed with big small circular holes (c) on inner cylinder (1) outer surface at interval.
5. water heater heat-exchange device according to claim 1 is characterized in that: be connected with reference column (4) between inner cover plate (5) and outer cover plate (6).
6. according to claim 2 or 3 or 4 described water heater heat-exchange devices, it is characterized in that: outer cylinder (2) diameter is φ 60mm～φ 90mm, length is 100mm～200mm, thickness is 0.35mm～1mm, slot on the tube outer surface (a) is 0.5mm * 6mm, quantity 〉=550 outside, and circular port (b) is φ 0.7mm, quantity 〉=660; Inner cylinder (1) diameter is φ 53mm～φ 83mm, and length is 93mm～193mm, and thickness is 0.35mm～1mm; Small circular holes on inner cylinder (c) is φ 2.2mm, quantity 〉=200, and big circular port is φ 3mm, quantity 〉=200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720078954XU CN201034382Y (en) | 2007-04-02 | 2007-04-02 | Water heater heat-exchanging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720078954XU CN201034382Y (en) | 2007-04-02 | 2007-04-02 | Water heater heat-exchanging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201034382Y true CN201034382Y (en) | 2008-03-12 |
Family
ID=39195272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720078954XU Expired - Lifetime CN201034382Y (en) | 2007-04-02 | 2007-04-02 | Water heater heat-exchanging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201034382Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650636A (en) * | 2016-02-03 | 2016-06-08 | 浙江广涛卫厨有限公司 | Heat exchanger assembly for burner |
| CN107044786A (en) * | 2017-04-06 | 2017-08-15 | 广东诺科冷暖设备有限公司 | Full premix combustion condensed heat exchanger |
| CN110726243A (en) * | 2019-11-08 | 2020-01-24 | 广州威茨热能技术有限公司 | Boiler adopting spiral flat tube heat exchanger |
| CN113623860A (en) * | 2021-08-23 | 2021-11-09 | 广东永焰电气科技有限责任公司 | Heat exchange and gas water heater with anti-corrosion function |
-
2007
- 2007-04-02 CN CNU200720078954XU patent/CN201034382Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650636A (en) * | 2016-02-03 | 2016-06-08 | 浙江广涛卫厨有限公司 | Heat exchanger assembly for burner |
| CN107044786A (en) * | 2017-04-06 | 2017-08-15 | 广东诺科冷暖设备有限公司 | Full premix combustion condensed heat exchanger |
| CN110726243A (en) * | 2019-11-08 | 2020-01-24 | 广州威茨热能技术有限公司 | Boiler adopting spiral flat tube heat exchanger |
| CN113623860A (en) * | 2021-08-23 | 2021-11-09 | 广东永焰电气科技有限责任公司 | Heat exchange and gas water heater with anti-corrosion function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080312 |
|
| CX01 | Expiry of patent term |