CN202119075U - Fuel gas hot water device - Google Patents
Fuel gas hot water device Download PDFInfo
- Publication number
- CN202119075U CN202119075U CN2011202010033U CN201120201003U CN202119075U CN 202119075 U CN202119075 U CN 202119075U CN 2011202010033 U CN2011202010033 U CN 2011202010033U CN 201120201003 U CN201120201003 U CN 201120201003U CN 202119075 U CN202119075 U CN 202119075U
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- gas
- water heater
- fuel pipe
- fired water
- 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
A fuel gas hot water device comprises a fan, a heat exchanger and a fuel gas inlet pipe. A combustion chamber is arranged in the heat exchanger, a gas outlet of the fan and a fuel gas outlet of the fuel gas inlet pipe are communicated with the combustion chamber. The fuel gas hot water device is technically characterized in that the combustion chamber comprises a large combustion chamber and a small combustion chamber, and the volume of the small combustion chamber is 4% to 30% of that of the large combustion chamber. The large combustion chamber is communicated with the small combustion chamber, the fuel gas inlet pipe comprises a first fuel pipe and a secondary fuel pipe, a first fuel gas outlet of the first fuel pipe and the gas outlet of the fan are communicated with the small combustion chamber, and a secondary fuel gas outlet of the secondary fuel pipe is communicated with the large combustion chamber. The fuel gas hot water device has the advantages of effectively enabling fuel gas to be completely combusted, improving heat efficiency, reducing production of nitrogen oxide and the like.
Description
Technical field
The utility model relates to a kind of gas-fired water heater, particularly a kind of domestic gas hot water apparatus.
Background technology
In the prior art, the domestic gas hot water apparatus adopts the flaming combustion mode usually, when burning produces heat; Discharge visible flame light; The part chemical energy of combustion gas is converted into visible luminous energy, and visible light can not add hot water, has wasted the part chemical energy of combustion gas in fact; Flaming combustion produces the torch or the tongues of fire, and the high-temperature region concentrates on the tongues of fire or torch position, and high-temperature temperature is too high, is prone to produce NO
XDeng emission; The ignition temperature field is inhomogeneous simultaneously, causes to exist burning insufficient, influences the raising of the gas-fired water heater thermal efficiency, is prone to produce NO
XEtc. defective.For overcoming these defectives, gas-fired water heater is improved.
Summary of the invention
The utility model technical problem to be solved is that a kind of gas-fired water heater will be provided, and it can make fuel gas buring more abundant effectively, improves the thermal efficiency of gas-fired water heater, reduces NO
XProduce.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of gas-fired water heater; It comprises blower fan, heat exchanger, advances Gas Pipe, is provided with the combustion chamber in the heat exchanger, and the gas outlet of blower fan, the gas port that goes out of advancing Gas Pipe are communicated with the combustion chamber; Described combustion chamber is provided with large-scale combustion chamber and small combustion chamber; The volume of described small combustion chamber is 4%～30% of large-scale combustion chamber, and the large-scale combustion chamber is communicated with small combustion chamber, describedly advances Gas Pipe and comprises primary fuel pipe and secondary fuel pipe; The gas outlet that once goes out gas port and blower fan of primary fuel pipe is communicated with small combustion chamber, and the secondary of secondary fuel pipe goes out gas port and is communicated with the large-scale combustion chamber.
The volume of described small combustion chamber is 8%～25% of large-scale combustion chamber.
Described large-scale combustion chamber is communicated with through through hole with small combustion chamber.
Described through hole is cylindrical hole or threaded hole.
Described small combustion chamber adopts high-alumina brick, silica brick, complex silicon carbide, corundum, magnesia brick or high insulating ceramic material to process.
The quantity of described secondary fuel pipe is 2～10.
The valve of control gaseous-pressure is installed on described primary fuel pipe and the secondary fuel pipe.
Described valve is manually-operated gate or electrically operated valve.
The utility model is compared the beneficial effect that is produced with background technology: because the utility model adopts the combustion chamber to be provided with large-scale combustion chamber and small combustion chamber, the large-scale combustion chamber is communicated with small combustion chamber, advances Gas Pipe and comprises primary fuel pipe and secondary fuel pipe; The gas outlet that once goes out gas port and blower fan of primary fuel pipe is communicated with small combustion chamber; The secondary of secondary fuel pipe goes out the structure that gas port is communicated with the large-scale combustion chamber, and small combustion chamber air excess coefficient is higher, forms lean burn; Normal temperature combustion gas in the small combustion chamber and air are transformed into higher temperature and than the mixed air of low oxygen content; The high-temperature low-oxygen mixed air gets in the large-scale combustion chamber through intercommunicating pore, and going out gas port with the secondary of secondary fuel pipe, to replenish the secondary combustion gas that gets into mixed, further forms the burning under the high-temperature low-oxygen condition; Reduce and discharge visible flame light; So it can make fuel gas buring more abundant effectively, improve the thermal efficiency of gas-fired water heater, reduce NO
XProduce.
Description of drawings: Fig. 1 is the structural representation of the utility model.
The specific embodiment: shown in accompanying drawing 1; Present embodiment comprises blower fan 1, heat exchanger 7, advances Gas Pipe 11, is provided with combustion chamber 2 in the heat exchanger 7, and combustion chamber 2 is provided with large-scale combustion chamber 6 and small combustion chamber 4; Large-scale combustion chamber 6 is communicated with small combustion chamber 4; Advance Gas Pipe 11 and comprise primary fuel pipe 10 and secondary fuel pipe 8, the gas outlet 12 that once goes out gas port and blower fan 1 of primary fuel pipe 10 is communicated with small combustion chamber 4, and the secondary of secondary fuel pipe 8 goes out gas port and is communicated with large-scale combustion chamber 6.
The volume of small combustion chamber 4 can be 4%～30% of large-scale combustion chamber 6, as 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29% or 30%.
Large-scale combustion chamber 6 is communicated with through through hole 5 with small combustion chamber 4, and through hole 5 can be regular holes such as cylindrical hole or threaded hole, also can be irregular hole.
Described small combustion chamber 4 adopts high heat-insulating materials such as high-alumina brick, silica brick, complex silicon carbide, corundum, magnesia brick or high insulating ceramic to process.
The quantity of described secondary fuel pipe 8 is 2～10, as 2,3,4,5,6,7,8,9 or 10.
The valve 9 of control gaseous-pressure is installed on primary fuel pipe 10 and the secondary fuel pipe 8, and valve 9 can be manually-operated gate or electrically operated valve, thereby control gets into the amount of combustion chamber 2 combustion gas.
The secondary that once goes out gas port and secondary fuel pipe 8 of primary fuel pipe 10 goes out gas port nozzle 3 can be housed; Blower fan 1 guarantees that the more air of the combustion gas injection that once goes out the gas port ejection of primary fuel pipe 10 gets into fully burning in the small combustion chamber 4; Because small combustion chamber 4 air excess coefficients are higher; Form lean burn, normal temperature combustion gas in the small combustion chamber 4 and air are transformed into higher temperature and than the mixed air of low oxygen content, the high-temperature low-oxygen mixed air is through in the through hole entering large-scale combustion chambers 65; Going out gas port with the secondary of secondary fuel pipe 8, to replenish the secondary combustion gas that gets into mixed; Form the burning under the hypoxia condition, reduce release visible flame light, further can realize flameless combustion.Heat exchange takes place through heat exchanger 7 in the high-temperature flue gas that burning produces, and last flue gas is discharged gas-fired water heater through smoke exhaust pipe.
Owing to can produce flameless combustion, do not produce flame light, the chemical energy of combustion gas is converted into heat energy, and the chemical energy of combustion gas does not cause waste.Flameless combustion does not produce the torch or the tongues of fire, and the high-temperature region disperses, and high-temperature temperature is difficult for producing NO
XDeng emission, the ignition temperature field is even simultaneously, helps burning more fully and the raising of the gas-fired water heater thermal efficiency.
Claims (10)
1. gas-fired water heater; It comprises blower fan (1), heat exchanger (7), advances Gas Pipe (11); Be provided with combustion chamber (2) in the heat exchanger (7); The gas outlet (12) of blower fan (1), the gas port that goes out of advancing Gas Pipe (11) are communicated with combustion chamber (2), it is characterized in that described combustion chamber (2) is provided with large-scale combustion chamber (6) and small combustion chamber (4), and small combustion chamber (4) volume is 4%～30% of large-scale combustion chamber (a 6) volume; Large-scale combustion chamber (6) is communicated with small combustion chamber (4); Describedly advance Gas Pipe (11) and comprise primary fuel pipe (10) and secondary fuel pipe (8), the gas outlet (12) that once goes out gas port and blower fan (1) of primary fuel pipe (10) is communicated with small combustion chamber (4), and the secondary of secondary fuel pipe (8) goes out gas port and is communicated with large-scale combustion chamber (6).
2. gas-fired water heater according to claim 1, the volume that it is characterized in that described small combustion chamber (4) are 8%～25% of large-scale combustion chamber (6).
3. gas-fired water heater according to claim 2 is characterized in that described large-scale combustion chamber (6) is communicated with through through hole (5) with small combustion chamber (4).
4. gas-fired water heater according to claim 3 is characterized in that described through hole (5) is cylindrical hole or threaded hole.
5. according to each described gas-fired water heater of claim 1～4, it is characterized in that described small combustion chamber (4) adopts high-alumina brick, silica brick, complex silicon carbide, corundum, magnesia brick or high insulating ceramic material to process.
6. according to each described gas-fired water heater of claim 1～4, the quantity that it is characterized in that described secondary fuel pipe (8) is 2～10.
7. gas-fired water heater according to claim 5, the quantity that it is characterized in that described secondary fuel pipe (8) is 2～10.
8. gas-fired water heater according to claim 7 is characterized in that being equipped with on described primary fuel pipe (10) and the secondary fuel pipe (8) valve (9) of controlling gaseous-pressure.
9. gas-fired water heater according to claim 6 is characterized in that described valve (9) is manually-operated gate or electrically operated valve.
10. gas-fired water heater according to claim 7 is characterized in that described valve (9) is manually-operated gate or electrically operated valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202010033U CN202119075U (en) | 2011-06-15 | 2011-06-15 | Fuel gas hot water device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202010033U CN202119075U (en) | 2011-06-15 | 2011-06-15 | Fuel gas hot water device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119075U true CN202119075U (en) | 2012-01-18 |
Family
ID=45460136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202010033U Expired - Lifetime CN202119075U (en) | 2011-06-15 | 2011-06-15 | Fuel gas hot water device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829540A (en) * | 2011-06-15 | 2012-12-19 | 广东万和新电气股份有限公司 | Fuel gas hot water device |
-
2011
- 2011-06-15 CN CN2011202010033U patent/CN202119075U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829540A (en) * | 2011-06-15 | 2012-12-19 | 广东万和新电气股份有限公司 | Fuel gas hot water device |
| CN102829540B (en) * | 2011-06-15 | 2014-07-30 | 广东万和新电气股份有限公司 | Fuel gas hot water device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120118 Effective date of abandoning: 20140730 |
|
| RGAV | Abandon patent right to avoid regrant |