CN2406184Y - Environment-protection gas water-heater - Google Patents
Environment-protection gas water-heater Download PDFInfo
- Publication number
- CN2406184Y CN2406184Y CN 99256064 CN99256064U CN2406184Y CN 2406184 Y CN2406184 Y CN 2406184Y CN 99256064 CN99256064 CN 99256064 CN 99256064 U CN99256064 U CN 99256064U CN 2406184 Y CN2406184 Y CN 2406184Y
- Authority
- CN
- China
- Prior art keywords
- water heater
- heat exchanger
- gas water
- environment protection
- type gas
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an enforced gas supplying and discharging type gas combustion water heater. In the utility model, a combustor adopts an upright gap type structure with low primary air coefficient alpha 1 running, and a cooling blunt body is arranged right above a gap type fire hole, therefore, the flame temperature in a combustion chamber can be obviously lowered, and partial high-temperature regions of flame can be eliminated, so that the flame temperature can trend to uniform, and the content of NOx in the discharged fume of the water heater can be obviously lowered. In addition, because of the skillful arrangement of the cooling blunt body, the content of CO in the discharged fume of the water heater does not rise when the flame temperature is lowered, in contrast, the content of CO at present is lower than the content of CO in the non-mount of the blunt body, achieving a good comprehensive environmental protection effect.
Description
The utility model is a kind of pressure supply and exhaust formula gas heater, belongs to the renovation technique of forcing supply and exhaust formula gas heater.
Existing pressure supply and exhaust formula gas heater, for the content that reduces CO in the smoke evacuation generally adopts bigger primary air ratio and chamber temperature together, so that cause the NOx content in the water heater smoke evacuation higher, this is not only bad for environmental protection requirement, and has influenced the healthy of user.For this reason, not only the user uses worriedly, and manufacturer's row that also quite takes a lot of trouble to pursue progress transforms, so that water heater meets environmental protection requirement.
Structure of the present utility model as shown in drawings, include blower fan (1), pulse igniter (2), combustion chamber (3), burner (4), heat exchanger (5), exhaust fume collecting hood (6), exhaust opening (7), air inlet (8), gas valve (9), water inlet tap (10), faucet (11), housing (12) and control device thereof, wherein blower fan (1) places the below of combustion chamber (3), pulse igniter (2) places the side of gas valve (9), burner (4) places in the combustion chamber (3), heat exchanger (5) places the top of combustion chamber (3), exhaust fume collecting hood (6) places the top of heat exchanger (5), exhaust opening (7), air inlet (8) place housing (12) above, and exhaust opening (7) communicates with exhaust fume collecting hood (6), air inlet (8) communicates with housing (12) inner chamber, water inlet tap (10), faucet (11) places the bottom of housing (12) respectively, and communicate with heat exchanger (5) respectively, wherein burner (4) is for adopting low primary air ratio α
1The upright cross-tube burner of operation is provided with cooling bluff body (13) directly over its clearance type fire hole.
Describe concrete structure of the present utility model in detail below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of burner in the utility model (4);
Fig. 3-1, Fig. 3-2 is respectively the flame face condition diagram when not having the cooling bluff body and cooling bluff body (13) being arranged;
Fig. 4 is the counter-flow arrangement structural representation of heat exchanger in the utility model (5);
Fig. 5 is the structural representation of heat exchanging fin (51) in the heat exchanger (5).
Structural representation of the present utility model as shown in drawings, include blower fan (1), pulse igniter (2), combustion chamber (3), burner (4), heat exchanger (5), exhaust fume collecting hood (6), exhaust opening (7), air inlet (8), gas valve (9), water inlet tap (10), faucet (11), housing (12) and control device thereof, wherein blower fan (1) places the below of combustion chamber (3), pulse igniter (2) places the side of gas valve (9), burner (4) places in the combustion chamber (3), heat exchanger (5) places the top of combustion chamber (3), exhaust fume collecting hood (6) places the top of heat exchanger (5), exhaust opening (7), air inlet (8) place housing (12) above, and exhaust opening (7) communicates with exhaust fume collecting hood (6), air inlet (8) communicates with housing (12), water inlet tap (10), faucet (11) places the bottom of housing (12) respectively, and communicate with heat exchanger (5) respectively, wherein burner (4) is for adopting low primary air ratio α
1The upright cross-tube burner of operation is provided with cooling bluff body (13) directly over its clearance type fire hole.One end of above-mentioned cooling bluff body (13) is fixed on the burner (4), the other end freely stretches, higher regional corresponding of temperature in its basal surface position and the flame, and the width of above-mentioned cooling bluff body (13) is corresponding with the clearance type fire hole width of burner, cooling bluff body (13) is made with anti-oxidant heat resisting steel, is shaped as bluff.In addition, to certain source of the gas, on cooling bluff body (13), also be provided with the resistant to elevated temperatures woven wire of one deck (14).Because the insertion of cooling bluff body (13), the flame bluff body (13) that is cooled cools off in the burner, and flame temperature descends thereupon; Because the insertion of cooling bluff body is obviously spun out flame internal flame face, and flame face area of dissipation increases, flame temperature also descends thereupon simultaneously; In addition because burner adopts lower primary air ratio α
1Operation, the corresponding decline of flame temperature level, the smoke backflow that while flame forms behind the cooling bluff body is except that having tangible retention flame effect under high load capacity, the flue gas that refluxes can be eliminated the high-temperature region of flame part, flame temperature is tending towards evenly, and above-mentioned these factors can make all that NOx content obviously descends in the water heater smoke evacuation.In addition, the combustion gas that cooling bluff body (13) makes not combustion again and the gaseous mixture of flue gas force folding at a high speed rising in secondary air streams, thereby quickened mixing between auxiliary air and unburned gas, quickened the after-flame process, CO content in the water heater smoke evacuation not only because descending, flame temperature is not risen, descend to some extent during bluff body than cooling is not set on the contrary, thereby obtain good environment protecting.
In order to improve the thermal efficiency of water heater, above-mentioned heat exchanger (5) adopts the structure of counter-flow arrangement, and the heat exchanger fin (51) in the above-mentioned heat exchanger (5) is provided with several flow-disturbing holes (52), Figure 4 shows that heat exchanger fin (51) is provided with 5 flow-disturbing holes (52) of making rectangle.
Burner in the utility model is owing to adopt low primary air ratio α
1The operation upright clearance type structure, and its clearance type fire hole directly over be provided with the cooling bluff body.Therefore, flame temperature level in the combustion chamber has obvious decline, and eliminated the localized hyperthermia district of flame, flame temperature is tending towards evenly, and NOx content obviously descends in the water heater smoke evacuation so make, in addition, because the ingenious layout of cooling bluff body, CO content in the water heater smoke evacuation is not only risen because flame temperature descends, descend to some extent when the cooling bluff body is not set on the contrary, thereby obtain good synthesized environmental protection effect.In addition, therefore the heat exchanger in the utility model can further improve the thermal efficiency of water heater owing to adopted counter-flow arrangement and the structure of holding together discharge orifice.The utility model is that a kind of design is ingenious, rational in infrastructure, has the good synthesized environmental protection effect and the forced-ventilated gas water heater of high thermal efficiency.
Claims (9)
1, a kind of environment protection type gas water heater, include blower fan (1), pulse igniter (2), combustion chamber (3), burner (4), heat exchanger (5), exhaust fume collecting hood (6), exhaust opening (7), air inlet (8), gas valve (9), water inlet tap (10), faucet (11), housing (12) and control device thereof, wherein blower fan (1) places the below of combustion chamber (3), pulse igniter (2) places the side of gas valve (9), burner (4) places in the combustion chamber (3), heat exchanger (5) places the top of combustion chamber (3), exhaust fume collecting hood (6) places the top of heat exchanger (5), exhaust opening (7), air inlet (8) place housing (12) above, and exhaust opening (7) communicates with exhaust fume collecting hood (6), air inlet (8) communicates with housing (12) inner chamber, water inlet tap (10), faucet (11) places the bottom of housing (12) respectively, and communicate with heat exchanger (5) respectively, it is characterized in that burner (4) is for adopting low primary air ratio α
1The upright cross-tube burner of operation is provided with cooling bluff body (13) directly over its clearance type fire hole.
2, environment protection type gas water heater according to claim 1 is characterized in that an end of above-mentioned cooling bluff body (13) is fixed on the burner (4), and the other end freely stretches, higher regional close of temperature in its basal surface position and the flame.
3, environment protection type gas water heater according to claim 1 is characterized in that the width of above-mentioned cooling bluff body (13) is corresponding with the clearance type fire hole width of burner.
4, environment protection type gas water heater according to claim 1 is characterized in that the bluff that is shaped as of above-mentioned cooling bluff body (13).
5, environment protection type gas water heater according to claim 1 is characterized in that also being provided with one deck and the wire netting (14) of high temperature on the above-mentioned cooling bluff body (13).
6,, it is characterized in that above-mentioned heat exchanger (5) adopts the structure of counter-flow arrangement according to claim 1 or 2 or 3 or 4 or 5 described environment protection type gas water heaters.
7, environment protection type gas water heater according to claim 6 is characterized in that the heat exchanger fin (51) in the above-mentioned heat exchanger (5) is provided with several flow-disturbing holes (52).
8, environment protection type gas water heater according to claim 7 is characterized in that above-mentioned flow-disturbing hole (52) makes rectangle.
9, environment protection type gas water heater according to claim 8 is characterized in that above-mentioned heat exchanger fin (51) is provided with 5 flow-disturbing holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256064 CN2406184Y (en) | 1999-12-24 | 1999-12-24 | Environment-protection gas water-heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256064 CN2406184Y (en) | 1999-12-24 | 1999-12-24 | Environment-protection gas water-heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2406184Y true CN2406184Y (en) | 2000-11-15 |
Family
ID=34039285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99256064 Expired - Lifetime CN2406184Y (en) | 1999-12-24 | 1999-12-24 | Environment-protection gas water-heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2406184Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662769A (en) * | 2018-04-25 | 2018-10-16 | 美的集团股份有限公司 | Gas heater |
-
1999
- 1999-12-24 CN CN 99256064 patent/CN2406184Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662769A (en) * | 2018-04-25 | 2018-10-16 | 美的集团股份有限公司 | Gas heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |