CN100354581C - Gas water heater with double-heat exchanger - Google Patents
Gas water heater with double-heat exchanger Download PDFInfo
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- CN100354581C CN100354581C CNB2005100606402A CN200510060640A CN100354581C CN 100354581 C CN100354581 C CN 100354581C CN B2005100606402 A CNB2005100606402 A CN B2005100606402A CN 200510060640 A CN200510060640 A CN 200510060640A CN 100354581 C CN100354581 C CN 100354581C
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Abstract
The present invention relates to a gas water heater for a double heat exchanger, which comprises a main water inlet, a main water outlet, a water inlet pipe, a water outlet pipe, a blower, a combustion chamber, a heat exchanger and a flue, wherein the heat exchanger is arranged above the combustion chamber, and the blower is arranged below the combustion chamber; the heat exchanger is composed of a sensible heat exchanger and a latent heat exchanger, and the latent heat exchanger is arranged above the sensible heat exchanger; a first gas exhaust connecting passage, a second gas exhaust connecting passage, a first fume collecting hood, a second fume collecting hood, a third fume collecting hood and a fourth fume collecting hood are arranged between the latent heat exchanger and the sensible heat exchanger; the main water inlet is communicated with a water inlet of the latent heat exchanger through the water inlet pipe, a water outlet of the latent heat exchanger is communicated with a water inlet of the sensible heat exchanger and the water outlet of the sensible heat exchanger is communicated with the main water outlet through the water outlet pipe. The present invention has the advantages that the heat energy can be fully utilized, the exhaust quantity of fume is decreased, the blower is free from the smoking and the roasting of high temperature, and the service life can be extended; the heat exchange of the fume and water entering insides is complete, and the heat efficiency of the water heater can be greatly improved. Compared with the existing water heater, the installing position and the installing mode of the present invention does not have large change and the large change of an original installing environment is not needed at the time of installation.
Description
Technical field
The present invention relates to a kind of gas heater, particularly a kind of gas heater of double-heat exchanger.
Background technology
Existing gas heater, the temperature of the useless flue gas of being discharged by the smoke exhaust pipe that is positioned at the water heater top by flue during use is about 200 degree.Show according to scientific research, condensing liquid quantity is many more in the flue gas, then the solvability to CO, NO in the flue gas is strong more, again because the condensing liquid quantity in the flue gas is relevant with excess air coefficient and exhaust gas temperature, and when superfluous air coefficient one timing, exhaust gas temperature is low more, and the condensing liquid quantity in the flue gas is many more, so the discharging of CO, NO toxic gas is just few more.Therefore,, not only cause the significant wastage of heat energy, make the thermal efficiency of water heater be difficult to be improved, but also in air, discharged a large amount of CO, NO toxic gas, cause very big environmental pollution because its exhaust gas temperature is still very high.
The patent No. is that 03225893.3 Chinese utility model patent discloses " a kind of gas instantaneous water heater of novel energy-saving environment-friendly ", include electrical control gear, the aqueous vapor control device, burner, main heat exchanger, fume extractor and housing, wherein the exhanst gas outlet of fume extractor communicates with the condensation chamber that is equiped with condenser, exhanst gas outlet on the condensation chamber communicates with atmosphere, the water heater water inlet communicates with the water inlet of condenser by aqueous vapor control device and water inlet pipe, the delivery port of condenser communicates with the main heat exchanger water inlet by outlet pipe, and the main heat exchanger delivery port communicates with the water heater delivery port by the aqueous vapor control device.It so reduced certain temperature of flue gas, has reclaimed the partial heat energy in the flue gas owing to adopted and be provided with the structure that condenser, flue gas are discharged after by condenser condenses, has reduced the quantity that is discharged into airborne CO, NO toxic gas.But still there is following restriction in it: one, if its fume extractor is put the exhausting formula on being, this fume extractor is positioned at the top of burner and main heat exchanger, not only can cause air inhomogeneous with mixing of combustion gas, and the life-span of fume extractor reduces greatly; Two, because its " exhanst gas outlet of fume extractor communicates with the condensation chamber that is equiped with condenser, and the exhanst gas outlet on the condensation chamber communicates with atmosphere ", the heat exchange of flue gas and entry is still very limited, makes the thermal efficiency of water heater improve seldom; Three, because the speed each point difference that circulates of flue gas causes the heat exchanger effectiveness of condenser can not reach optimum condition, make decrease in efficiency in condenser.
Summary of the invention
The gas heater of the double-heat exchanger of the thermal efficiency that technical problem to be solved by this invention is discharge capacity that a kind of temperature that can reduce useless flue gas greatly and toxic gas are provided at above-mentioned prior art present situation, improve water heater.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of gas heater of double-heat exchanger, comprise total water inlet, total delivery port, water inlet pipe, outlet pipe, blower fan, combustion chamber, heat exchanger and flue, described heat exchanger is arranged at the top of described combustion chamber, described heat exchanger is made up of sensible heat exchanger and latent heat exchanger, and described latent heat exchanger places the top of described sensible heat exchanger; Be provided with the flue gas recirculation passage between described latent heat exchanger and the described sensible heat exchanger;
Described total water inlet communicates with the water inlet of latent heat exchanger by described water inlet pipe, and the delivery port of latent heat exchanger communicates with the water inlet of sensible heat exchanger, and the delivery port of sensible heat exchanger communicates with described total delivery port by described outlet pipe;
It is characterized in that: described flue gas recirculation passage comprises first, second exhaust interface channel and the first, second, third and the 4th flue gas gas skirt, and be centered around described latent heat exchanger around; The position specifically is set is: the described first flue gas gas skirt, the second flue gas gas skirt from bottom to top are successively set on the below of described latent heat exchanger, described the 3rd flue gas gas skirt, the 4th flue gas gas skirt from bottom to top are successively set on the top of described latent heat exchanger, and the described first exhaust interface channel, the second exhaust interface channel then divide rear and the place ahead that is located at described latent heat exchanger;
The outlet flue of described sensible heat exchanger connects the mouth that advances of the described first flue gas gas skirt, the outlet flue of the first flue gas gas skirt connects the mouth that advances of the described first exhaust interface channel, the outlet flue of the first exhaust interface channel connects the mouth that advances of described the 3rd flue gas gas skirt, the outlet flue of the 3rd flue gas gas skirt connects the mouth that advances of described latent heat exchanger, the outlet flue of latent heat exchanger connects the mouth that advances of the described second flue gas gas skirt, the outlet flue of the second flue gas gas skirt connects the mouth that advances of the described second exhaust interface channel, the outlet flue of the second exhaust interface channel connects the mouth that advances of described the 4th flue gas gas skirt, and the outlet flue of the 4th flue gas gas skirt communicates with atmosphere through described flue.
In order to make the abundant premix of combustion gas and air, it is more abundant to burn, and makes blower fan not fire-cureed to prolong its life-span by high temperature, and described blower fan preferably is arranged at the below of described combustion chamber.
In order to utilize the energy more fully, described water inlet pipe preferably coils the water inlet that leads to latent heat exchanger behind the described combustion chamber more earlier.
Flow out for the condensed water on the flue gas gas skirt is convenient, the below that is preferably in the described second flue gas gas skirt is provided with a condensation-water drain, and connects a conduit at described condensation-water drain place.
Compared with prior art, the invention has the advantages that: one, because it adopts the blower fan of blowing-type, this blower fan is positioned at the burner below, makes the abundant premix of combustion gas and air, it is more abundant to burn, the high-temperature flue gas that generates upwards enters sensible heat exchanger, and inner and surface temperature is heated to very highly with sensible heat exchanger, has not only increased the discharging that has made full use of, reduced useless flue gas to heat energy greatly, and blower fan do not fire-cure by high temperature, and the life-span improves greatly; Two, owing to have two exhaust interface channels and four flue gas gas skirts in its flue gas conducting device, flue gas has carried out just discharging after two circulations around latent heat exchanger, makes that the heat exchange of flue gas and entry is very abundant, and it is big to make the thermal efficiency of water heater carry nice and high; Three, the emission direction of burned flame and last flue gas is with existing on-condensing water heater basically identical, and installation site and mode do not have big variation yet, and installing when product renewal does not need original installation environment is carried out big change easily.
Description of drawings
Fig. 1 is the overall structure front view of the embodiment of the invention;
Fig. 2 is the overall structure left view of the embodiment of the invention;
Fig. 3 is the current direction front schematic view in the embodiment of the invention;
Fig. 4 is the current direction side schematic view in the embodiment of the invention;
Fig. 5 is the flue gas flow direction schematic diagram in the embodiment of the invention.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Shown in Fig. 1,2,3,4,5, a kind of gas heater of double-heat exchanger, comprise total water inlet 1, total delivery port 2, water inlet pipe 3, outlet pipe 4, blower fan 5, combustion chamber 6, heat exchanger 7 and flue 8, described blower fan 5 is arranged at the below of described combustion chamber 6, described heat exchanger 7 is arranged at the top of described combustion chamber 6, described heat exchanger 7 is made up of sensible heat exchanger 71 and latent heat exchanger 72, and described latent heat exchanger 72 places the top of described sensible heat exchanger 71; Be provided with the flue gas recirculation passage that constitutes by the first exhaust interface channel 73, the second exhaust interface channel 74 and the first flue gas gas skirt 75, the second flue gas gas skirt 76, the 3rd flue gas gas skirt 77 and the 4th flue gas gas skirt 78 between described latent heat exchanger 72 and the described sensible heat exchanger 71, the flue gas recirculation passage be centered around described latent heat exchanger 72 around; The position specifically is set is: the first flue gas gas skirt 75, the second flue gas gas skirt 76 from bottom to top are successively set on the below of latent heat exchanger 72, the 3rd flue gas gas skirt 77, the 4th flue gas gas skirt 78 from bottom to top are successively set on the top of latent heat exchanger 72, and the first exhaust interface channel 73, the second exhaust interface channel 74 then branch are located at rear and the place ahead of latent heat exchanger 72.
The outlet flue of described sensible heat exchanger 71 connects the mouth that advances of the described first flue gas gas skirt 75, the outlet flue of the first flue gas gas skirt 75 connects the mouth that advances of the described first exhaust interface channel 73, the outlet flue of the first exhaust interface channel 73 connects the mouth that advances of described the 3rd flue gas gas skirt 77, the outlet flue of the 3rd flue gas gas skirt 77 connects the mouth that advances of described latent heat exchanger 72, the outlet flue of latent heat exchanger 72 connects the mouth that advances of the described second flue gas gas skirt 76, the outlet flue of the second flue gas gas skirt 76 connects the mouth that advances of the described second exhaust interface channel 74, the outlet flue of the second exhaust interface channel 74 connects the mouth that advances of described the 4th flue gas gas skirt 78, and the outlet flue of the 4th flue gas gas skirt 78 communicates with atmosphere through described flue 8;
The below of the described second flue gas gas skirt 76 is provided with a condensation-water drain 761; Described condensation-water drain 761 is connected to a conduit 762.
The acting in conjunction of described the 3rd flue gas gas skirt 77 and the second flue gas gas skirt 76 has the effect of even each point flow velocity to the air-flow that flows through latent heat exchanger 72, makes that the air velocity of each fin surface of latent heat exchanger 72 is roughly the same;
Described total water inlet 1 communicates with the water inlet of latent heat exchanger 72 by the described water inlet pipe 3 that is coiled in described combustion chamber 6, the delivery port of latent heat exchanger 72 communicates with the water inlet of sensible heat exchanger 71, and the delivery port of sensible heat exchanger 71 communicates with described total delivery port 2 by described outlet pipe 4.
Claims (4)
1, a kind of gas heater of double-heat exchanger, comprise total water inlet (1), total delivery port (2), water inlet pipe (3), outlet pipe (4), blower fan (5), combustion chamber (6), heat exchanger (7) and flue (8), described heat exchanger (7) is arranged at the top of described combustion chamber (6), described heat exchanger (7) is made up of sensible heat exchanger (71) and latent heat exchanger (72), and described latent heat exchanger (72) places the top of described sensible heat exchanger (71); Be provided with the flue gas recirculation passage between described latent heat exchanger (72) and the described sensible heat exchanger (71);
Described total water inlet (1) communicates by the water inlet of described water inlet pipe (3) with latent heat exchanger (72), the delivery port of latent heat exchanger (72) communicates with the water inlet of sensible heat exchanger (71), and the delivery port of sensible heat exchanger (71) communicates with described total delivery port (2) by described outlet pipe (4);
It is characterized in that: described flue gas recirculation passage comprises first, second exhaust interface channel (73,74) and the first, second, third and the 4th flue gas gas skirt (75,76,77,78), and be centered around described latent heat exchanger (72) around; The position specifically is set is: the described first flue gas gas skirt (75), the second flue gas gas skirt (76) from bottom to top are successively set on the below of described latent heat exchanger (72), described the 3rd flue gas gas skirt (77), the 4th flue gas gas skirt (78) from bottom to top are successively set on the top of described latent heat exchanger (72), and the described first exhaust interface channel (73), the second exhaust interface channel (74) then divide rear and the place ahead that is located at described latent heat exchanger (72);
The outlet flue of described sensible heat exchanger (71) and the described first flue gas gas skirt (75) enter mouth UNICOM, the outlet flue of the first flue gas gas skirt (75) and the described first exhaust interface channel (73) enter mouth UNICOM, the outlet flue of the first exhaust interface channel (73) and described the 3rd flue gas gas skirt (77) enter mouth UNICOM, the outlet flue of the 3rd flue gas gas skirt (77) and described latent heat exchanger (72) enter mouth UNICOM, the outlet flue of latent heat exchanger (72) and the described second flue gas gas skirt (76) enter mouth UNICOM, the outlet flue of the second flue gas gas skirt (76) and the described second exhaust interface channel (74) enter mouth UNICOM, the outlet flue of the second exhaust interface channel (74) and described the 4th flue gas gas skirt (78) enter mouth UNICOM, the outlet flue of the 4th flue gas gas skirt (78) communicates with atmosphere through described flue (8).
2, double-heat exchanger as claimed in claim 1 advance gas heater, it is characterized in that: the below of the described second flue gas gas skirt (76) is provided with a condensation-water drain (761); Described condensation-water drain (761) is connected to a conduit (762).
3, double-heat exchanger as claimed in claim 2 advance gas heater, it is characterized in that: described blower fan (5) is arranged at the below of described combustion chamber (6).
4, double-heat exchanger as claimed in claim 3 advance gas heater, it is characterized in that: described water inlet pipe (3) leads to the water inlet of latent heat exchanger (72) earlier behind the described combustion chamber of coiling (6) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100606402A CN100354581C (en) | 2005-09-06 | 2005-09-06 | Gas water heater with double-heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100606402A CN100354581C (en) | 2005-09-06 | 2005-09-06 | Gas water heater with double-heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1740699A CN1740699A (en) | 2006-03-01 |
| CN100354581C true CN100354581C (en) | 2007-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100606402A Active CN100354581C (en) | 2005-09-06 | 2005-09-06 | Gas water heater with double-heat exchanger |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699180A (en) * | 2009-11-17 | 2010-04-28 | 广东万家乐燃气具有限公司 | Separation type gas water heater |
| CN105181473B (en) * | 2015-09-18 | 2018-01-19 | 宁波方太厨具有限公司 | A kind of Detecting data of the circularly-supercharged function of gas heater |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08136058A (en) * | 1994-11-14 | 1996-05-31 | Gastar Corp | Combustion equipment having heat exchanger for recovering latent heat |
| JPH11148642A (en) * | 1997-11-19 | 1999-06-02 | Gastar Corp | Combustion instrument |
| JP2003106521A (en) * | 2001-09-28 | 2003-04-09 | Tokyo Gas Co Ltd | Combustion device with co sensor |
| CN1460820A (en) * | 2002-05-23 | 2003-12-10 | 株式会社庆东Boiler | Heat exchanger structure for condensating gas-fired boiler |
| JP2004245515A (en) * | 2003-02-14 | 2004-09-02 | Matsushita Electric Ind Co Ltd | Heat exchanging device |
| JP2005207687A (en) * | 2004-01-23 | 2005-08-04 | Noritz Corp | Combustion device |
| CN2821470Y (en) * | 2005-09-06 | 2006-09-27 | 宁波方太厨具有限公司 | Gas water heater of double heat exchanger |
-
2005
- 2005-09-06 CN CNB2005100606402A patent/CN100354581C/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08136058A (en) * | 1994-11-14 | 1996-05-31 | Gastar Corp | Combustion equipment having heat exchanger for recovering latent heat |
| JPH11148642A (en) * | 1997-11-19 | 1999-06-02 | Gastar Corp | Combustion instrument |
| JP2003106521A (en) * | 2001-09-28 | 2003-04-09 | Tokyo Gas Co Ltd | Combustion device with co sensor |
| CN1460820A (en) * | 2002-05-23 | 2003-12-10 | 株式会社庆东Boiler | Heat exchanger structure for condensating gas-fired boiler |
| JP2004245515A (en) * | 2003-02-14 | 2004-09-02 | Matsushita Electric Ind Co Ltd | Heat exchanging device |
| JP2005207687A (en) * | 2004-01-23 | 2005-08-04 | Noritz Corp | Combustion device |
| CN2821470Y (en) * | 2005-09-06 | 2006-09-27 | 宁波方太厨具有限公司 | Gas water heater of double heat exchanger |
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| Publication number | Publication date |
|---|---|
| CN1740699A (en) | 2006-03-01 |
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