CN103148492B - Burner - Google Patents
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- Publication number
- CN103148492B CN103148492B CN201210517551.6A CN201210517551A CN103148492B CN 103148492 B CN103148492 B CN 103148492B CN 201210517551 A CN201210517551 A CN 201210517551A CN 103148492 B CN103148492 B CN 103148492B
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- CN
- China
- Prior art keywords
- burning
- burner
- hood
- gas
- exhaust
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/02—Linings; Jackets; Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
- F23M9/003—Baffles or deflectors for air or combustion products; Flame shields in flue gas ducts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2213/00—Chimneys or flues
- F23J2213/10—Linings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details Of Fluid Heaters (AREA)
- Chimneys And Flues (AREA)
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
Abstract
The invention provides a kind of burner.This burner possesses: the burning frame being built-in with burner; Combustion air is supplied to the fan in burning frame; Be configured at the heat exchanger of the top of burning frame; And be configured at the hood (6) of top of heat exchanger, the exhaust outlet (61) of the tubular that burning and gas-exhausting extends upward via the upper wall portions from hood and discharging, this burner possesses exhaust restriction cylinder (63) being inserted into exhaust outlet from below, this burner can reduce fan noise, and also can reduce the resonate noise of Helmholtz.Be formed with in the periphery of the flange part (631) of the ring-type extended towards radial outside from the lower end of exhaust restriction cylinder the cylinder portion (632) erected upward, the opening edge of the exhaust outlet of the upper wall portions of hood is fixed in the upper end in cylinder portion.Multiple passage (633) passed through for burning and gas-exhausting is circumferentially offered at spaced intervals in cylinder portion.
Description
Technical field
The present invention relates to burner, this burner possesses: burning frame, and this burning frame is built-in with burner; Fan, combustion air is supplied in burning frame by this fan; And heat exchanger, this heat exchanger arrangement in the top of burning frame, and is heated by the burning and gas-exhausting of burner.
Background technology
In the past, this burner possesses hood, this hood is configured at the top of heat exchanger, the burning and gas-exhausting passed through at heat exchanger flows into this hood, the exhaust outlet of the tubular that burning and gas-exhausting extends upward via the upper wall portions from hood and the aiutage that is connected with this exhaust outlet and discharge towards the outside.
But, as mentioned above, in the burner possessing burning frame, heat exchanger and hood, produce the sympathetic response of Helmholtz.By from burning frame to hood internal volume is set to V, the sectional area of exhaust channel is set to S, the path of exhaust channel long is set to L, velocity of sound is set to C, above-mentioned resonance frequency f is according to (1) Shi Ke get, i.e. f=(C/2 π) { S/(VL) }
1/2(1).Further, when the frequency of resonance frequency close to the combustion vibration of burner, the noise caused by sympathetic response is produced.Therefore, in order to reduce noise, need to make resonance frequency be different from combustion vibration frequency.
In this case, consider by the sectional area of reduction exhaust outlet and make resonance frequency be less than combustion vibration frequency.But this also causes the diameter of the aiutage be connected with exhaust outlet to diminish.Therefore, the burning and gas-exhausting in aiutage excessive by resistance, in order to the revolution supplying the combustion air of aequum and required fan increases, thus causes fan noise to increase.
Therefore, in the past, following burner is there will be a known: the position being positioned at the below of exhaust outlet in hood according to patent document 1, be provided with the baffle plate that the sectional area of area ratio exhaust outlet is large, between baffle plate and the upper wall portions lower surface of hood, be formed with airspace burning and gas-exhausting being guided to exhaust outlet.In this burner, utilize baffle plate to stop by the direct flowing towards exhaust outlet of the burning and gas-exhausting of heat exchanger, burning and gas-exhausting flow to exhaust outlet via above-mentioned exhaust clearance.And, airspace is formed as acoustic resistance, can obtain the effect be equal to the long L of exhaust channel increasing above-mentioned (1) formula, even if do not reduce the sectional area of exhaust outlet, also resonance frequency can be made to be less than combustion vibration frequency, thus the resonate noise of Helmholtz can be reduced.
But, in this burner, because whole burning and gas-exhaustings flows through exhaust clearance, therefore cannot make the enough little by resistance of burning and gas-exhausting, have to improve fan revolution higher.Therefore, even if in this burner, be also difficult to reduce fan noise.
In addition, in the past, on market also sell possess be inserted into exhaust outlet from below and diameter less than the diameter of exhaust outlet exhaust restriction cylinder burner.Exhaust restriction cylinder has the flange part of the ring-type extended from its lower end towards radial outside, and this flange part is fixed on the opening edge of the exhaust outlet of the upper wall portions of hood, and burning and gas-exhausting limits cylinder via exhaust and flow to exhaust outlet.In this burner, utilize exhaust restriction cylinder can obtain the effect be equal to the exhaust channel sectional area S reducing above-mentioned (1) formula, even if do not reduce the sectional area of exhaust outlet, resonance frequency also can be made to be less than combustion vibration frequency, thus the resonate noise of Helmholtz can be reduced.
But, reduce the sectional area of exhaust restriction cylinder if insufficient, then cannot obtain above-mentioned effect.Therefore, even if in this burner, also cannot fully reduce burning and gas-exhausting by resistance, be difficult to reduce fan noise.
Patent document 1: Japanese Unexamined Patent Publication 2007-3175 publication
Summary of the invention
The present invention completes in view of the above circumstances, and its problem is that the burner to possessing exhaust restriction cylinder is improved, thus provides and can reduce fan noise and the burner that also can reduce the resonate noise of Helmholtz.
In order to solve above-mentioned problem, burner of the present invention possesses: burning frame, and this burning frame is built-in with burner, fan, this fan supplies combustion air in burning frame, heat exchanger, this heat exchanger arrangement in the top of burning frame, and is heated by the burning and gas-exhausting of burner, and hood, this hood is configured at the top of heat exchanger, the burning and gas-exhausting passed through at heat exchanger flows into this hood, above-mentioned burner is formed as the exhaust outlet of the tubular that burning and gas-exhausting extends upward via the upper wall portions from hood and discharges, the feature of described burner is, described burner possesses exhaust restriction cylinder, this exhaust restriction cylinder is inserted into exhaust outlet from below, and diameter is less than the diameter of exhaust outlet, exhaust restriction cylinder has the flange part of the ring-type extended towards radial outside from the lower end of this exhaust restriction cylinder, this flange part is fixed on the opening edge of the exhaust outlet of the upper wall portions of hood, the cylinder portion erected upward is formed in the periphery of flange part, flange part is fixed on the opening edge of the exhaust outlet of the upper wall portions of hood by the upper end in cylinder portion, and, multiple passage passed through for burning and gas-exhausting is circumferentially offered at spaced intervals in cylinder portion.
According to the present invention, the burning and gas-exhausting passed through at heat exchanger not only flow to exhaust outlet via exhaust restriction cylinder, also flow to exhaust outlet via the passage being opened in a portion, therefore, even if the sectional area of exhaust restriction cylinder is reduced in order to the effect of the resonate noise that can be reduced Helmholtz, also being reduced by resistance of burning and gas-exhausting.Therefore, increase the revolution of fan with exceeding, can fan noise be reduced.In addition, the burning and gas-exhausting flowed into from each passage once to radially inner side flowing after, just can towards exhaust outlet bending flowing upward, therefore the streamline of burning and gas-exhausting is elongated, and, the burning and gas-exhausting flowed into from each passage, mutually to collide with the burning and gas-exhausting flowed into from circumferentially adjacent passage, be formed as acoustic resistance.Therefore, can play from the flowing of the burning and gas-exhausting of passage inflow the effect be equal to the long L of exhaust channel increasing above-mentioned (1) formula.Therefore, even if form the resonate noise that passage also can reduce Helmholtz.
In addition, when the gross area of the whole passages being formed at a portion is less than 25% of the sectional area of exhaust restriction cylinder, what fully cannot reduce burning and gas-exhausting passes through resistance, and, when the gross area of whole passage is greater than 50% of the sectional area of exhaust restriction cylinder, the decreased effectiveness of the acoustic resistance that passage has, thus the resonate noise that fully cannot reduce Helmholtz.Therefore, preferably, the gross area of whole passage is 25% ~ 50% of the sectional area of exhaust restriction cylinder.
Accompanying drawing explanation
Fig. 1 is the front view of the burner of embodiments of the present invention.
Fig. 2 is the hood that obtains along II-II line cutting of Fig. 1 and the cross-sectional side elevational view for gas hood.
Fig. 3 is the hood that obtains along III-III line cutting of Fig. 2 and the cross-sectional side elevational view for gas hood.
Description of reference numerals:
2 ... burner; 3 ... burning frame; 4 ... fan; 5 ... heat exchanger; 6 ... hood; 61 ... exhaust outlet; 63 ... exhaust restriction cylinder; 64 ... flange part; 65 ... cylinder portion; 66 ... passage.
Detailed description of the invention
Fig. 1 illustrates the burner be made up of the water supply heat source machine be arranged within doors.This burner possesses external shell 1.Be configured with in external shell 1: the burning frame 3 being built-in with the burner 2 of multiple bias combustion formula; The fan 4 of the below of burning frame 3; The water supply heat exchanger 5 of the top of burning frame 3; The hood 6 of the top of heat exchanger 5; And hood 6 covered for gas hood 7.Further, utilize fan 4 via for gas hood 7 and the air supply pipe 72(that is connected with for gas hood 7 with reference to Fig. 2) attract from omitting the illustrated inflator towards room extension extraneous gas, and this extraneous gas be supplied to as combustion air burn in frame 3.The burning and gas-exhausting of burner 2 flow to heat exchanger 5 from burning frame 3, and is heated by this extraneous gas.Further, flow into hood 6 by the burning and gas-exhausting of heat exchanger 5, and discharge towards room via the illustrated aiutage of omission of the inner side of inflator from hood 6.
With reference to Fig. 2, Fig. 3, have the air supply opening 71 of the tubular extended upward from the upper wall portions of this confession gas hood 7 for gas hood 7, this air supply opening 71 is connected with inflator.In addition, the rear surface (being the surface of right in fig. 2) for gas hood 7 is opened wide, and air supply pipe 72 is connected with this rear surface.Further, from the extraneous gas of inflator via air supply opening 71 and divide in being directed to air supply pipe 72 for the space between the hood 6 in gas hood 7.
Hood 6 has the exhaust outlet 61 of the tubular extended upward from the upper wall portions of this hood 6, and this exhaust outlet 61 is connected with aiutage.Be equipped with the discharge casing 62 of tubular in the top inner circumferential of exhaust outlet 61, this discharge casing 62 is received because of the condensation of the moisture in burning and gas-exhausting in aiutage and the discharge water produced.In addition, the drainpipe 62a be communicated with the bottom of discharge casing 62 and exhaust outlet 61 are linked.Drainpipe 62a towards protruding outside, is equipped with lid 62b through air supply opening 71 in the outer end of drainpipe 62a.Further, by lid 62b is unloaded, the discharge water lodging in discharge casing 62 can be discharged via drainpipe 62a.
Also be provided with exhaust restriction cylinder 63 at hood 6, this exhaust restriction cylinder 63 is inserted into exhaust outlet 61 from below, and diameter is less than the diameter of exhaust outlet 61.Exhaust restriction cylinder 63 has the flange part 64 extended towards radial outside from the lower end of this exhaust restriction cylinder 63.The cylinder portion 65 erected upward is formed in the periphery of flange part 64.Further, flange part 64 is fixed on the opening edge lower surface of the exhaust outlet 61 of the upper wall portions of hood 6 at the bending edge 65a of the upper end in cylinder portion 65.
Here, if reduce the sectional area of exhaust restriction cylinder 63, then can obtain the effect same with the exhaust channel sectional area S-phase reducing above-mentioned (1) formula, make resonance frequency be less than combustion vibration frequency, thus the resonate noise of Helmholtz can be reduced.But like this, being increased by resistance of the burning and gas-exhausting in exhaust restriction cylinder 63, in order to the revolution of the combustion air and required fan 4 that supply aequum increases, thus causes fan noise to increase.
Therefore, in the present embodiment, multiple passage 66 that burning and gas-exhausting is passed is formed in the circumferential at spaced intervals in cylinder portion 65.Thus, burning and gas-exhausting not only flow to exhaust outlet 61 via exhaust restriction cylinder 63, also flow to exhaust outlet 61 via passage 66, therefore, even if the sectional area of exhaust restriction cylinder 63 is reduced in order to the effect of the resonate noise that can be reduced Helmholtz, also reducing through resistance of burning and gas-exhausting.Therefore, increase the revolution of fan 4 with exceeding, can fan noise be reduced.
In addition, as shown by the arrows in figure 2, the burning and gas-exhausting flowed into from each passage 66 is once towards after radially inner side flowing, and just towards exhaust outlet 62 bending flowing upward, thus the streamline of burning and gas-exhausting is elongated.And then, the burning and gas-exhausting flowed into from each passage 66, mutually to collide with the burning and gas-exhausting flowed into from circumferentially adjacent passage 66, be formed as acoustic resistance.Therefore, the effect identical with the long L of exhaust channel increasing above-mentioned (1) formula can be played from the flowing of the burning and gas-exhausting of passage 66 inflow.Therefore, even if be formed with passage 66, the resonate noise of Helmholtz can also be reduced.
In addition, following situation can be confirmed: when the gross area of the whole passages 66 being formed at a portion 65 is less than 25% of the sectional area of exhaust restriction cylinder 63 from experimental result, what fully cannot reduce burning and gas-exhausting passes through resistance, and, when the gross area of whole passage 66 is greater than 50% of the sectional area of exhaust restriction cylinder 63, the decreased effectiveness of the acoustic resistance that passage 66 has, thus the resonate noise that fully cannot reduce Helmholtz.Therefore, preferably, the gross area of whole passage 66 is 25% ~ 50% of the sectional area of exhaust restriction cylinder 63.
In the present embodiment, exhaust is limited, and the diameter (internal diameter) of cylinder 63 is 42mm, the diameter in cylinder portion 65 (internal diameter) is 86mm, the height in cylinder portion 65 is 8mm, circumferentially equally spaced forms the passage 66 of square hole shape of 32 wide 3mm, high 5mm in cylinder portion 65.In this case, the gross area (=480mm of whole passage 66
2) be about sectional area (the ≈ 1385mm that exhaust limits cylinder 63
2) 35%.
Above, although be illustrated embodiments of the present invention with reference to accompanying drawing, the present invention is not limited thereto.Such as, form multiple aperture that burning and gas-exhausting is passed at flange part 64, also can make being reduced further by resistance of burning and gas-exhausting.But, in above described holes, different from the passage 66 being formed at a portion 65, the effect of acoustic resistance cannot be obtained.Therefore, in order to reduce the resonate noise of Helmholtz, need to make the gross area of all well being formed at flange part 64 be less than 15% of the gross area of whole passage 66.
In addition, according to above-mentioned embodiment, the present invention is applicable to the burner be made up of the water supply heat source machine of the heat exchanger 5 with water supply, but the present invention can be applicable to the burner of the heat exchanger of the purposes had beyond heating water supply so equally.
Claims (2)
1. a burner, possesses:
Burning frame, this burning frame is built-in with burner;
Fan, this fan supplies combustion air in burning frame;
Heat exchanger, this heat exchanger arrangement in the top of burning frame, and is heated by the burning and gas-exhausting of burner; And
Hood, this hood is configured at the top of heat exchanger, and the burning and gas-exhausting passed through at heat exchanger flows into this hood,
Described burner is formed as the exhaust outlet of the tubular that burning and gas-exhausting extends upward via the upper wall portions from hood and discharges,
Described burner possesses exhaust restriction cylinder, this exhaust restriction cylinder is inserted into exhaust outlet from below, and diameter is less than the diameter of exhaust outlet, exhaust restriction cylinder has the flange part of the ring-type extended towards radial outside from the lower end of this exhaust restriction cylinder, this flange part is fixed on the opening edge of the exhaust outlet of the upper wall portions of hood
The feature of described burner is,
Be formed with the cylinder portion erected upward in the periphery of flange part, flange part is fixed on the opening edge of the exhaust outlet of the upper wall portions of hood by the upper end in cylinder portion, and, multiple passage passed through for burning and gas-exhausting is circumferentially offered at spaced intervals in cylinder portion.
2. burner according to claim 1, is characterized in that,
The gross area being formed at whole passages in described cylinder portion is 25% ~ 50% of the sectional area of described exhaust restriction cylinder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-268243 | 2011-12-07 | ||
| JP2011268243A JP5421981B2 (en) | 2011-12-07 | 2011-12-07 | Combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103148492A CN103148492A (en) | 2013-06-12 |
| CN103148492B true CN103148492B (en) | 2016-03-23 |
Family
ID=48546716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210517551.6A Active CN103148492B (en) | 2011-12-07 | 2012-12-05 | Burner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5421981B2 (en) |
| KR (1) | KR101373451B1 (en) |
| CN (1) | CN103148492B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6807265B2 (en) * | 2016-05-12 | 2021-01-06 | リンナイ株式会社 | Combustion device |
| CN110966636B (en) * | 2018-09-28 | 2021-10-12 | 宁波方太厨具有限公司 | Wind pressure resistant smoke tube |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1335267A (en) * | 1971-03-04 | 1973-10-24 | Hitachi Ltd | Heat exchanger |
| JPH06147454A (en) * | 1992-11-09 | 1994-05-27 | Matsushita Electric Ind Co Ltd | Premixing low noise burner |
| CN2716719Y (en) * | 2004-06-15 | 2005-08-10 | 上海能率有限公司 | Noise reduction exhaust passage structure of gas water heater |
| DE202005010473U1 (en) * | 2005-07-04 | 2005-09-15 | Bosch Gmbh Robert | Heating appliance has silencing unit constructed as Helmholzt resonator or as Lamda quarter wave tube with least one sound opening, and with membrane in form of film covering aforesaid opening |
| JP2007003175A (en) * | 2005-05-23 | 2007-01-11 | Rinnai Corp | Combustion device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4729820U (en) * | 1971-04-26 | 1972-12-05 | ||
| JPS5131391Y2 (en) * | 1973-01-20 | 1976-08-06 | ||
| JPS49150950U (en) * | 1973-04-25 | 1974-12-27 | ||
| JPS56173840U (en) * | 1980-05-23 | 1981-12-22 | ||
| JPS5923529U (en) * | 1982-08-05 | 1984-02-14 | ヤマハ株式会社 | Exhaust system for combustion appliances |
| JP3540443B2 (en) * | 1995-06-23 | 2004-07-07 | 三洋電機株式会社 | Silencer in combustion equipment |
| JP3793364B2 (en) * | 1999-04-07 | 2006-07-05 | リンナイ株式会社 | Combustion appliance exhaust fittings |
| JP3873249B2 (en) * | 2001-02-09 | 2007-01-24 | 五洋建設株式会社 | Chimney dismantling method and apparatus |
-
2011
- 2011-12-07 JP JP2011268243A patent/JP5421981B2/en active Active
-
2012
- 2012-12-05 CN CN201210517551.6A patent/CN103148492B/en active Active
- 2012-12-06 KR KR1020120141250A patent/KR101373451B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1335267A (en) * | 1971-03-04 | 1973-10-24 | Hitachi Ltd | Heat exchanger |
| JPH06147454A (en) * | 1992-11-09 | 1994-05-27 | Matsushita Electric Ind Co Ltd | Premixing low noise burner |
| CN2716719Y (en) * | 2004-06-15 | 2005-08-10 | 上海能率有限公司 | Noise reduction exhaust passage structure of gas water heater |
| JP2007003175A (en) * | 2005-05-23 | 2007-01-11 | Rinnai Corp | Combustion device |
| DE202005010473U1 (en) * | 2005-07-04 | 2005-09-15 | Bosch Gmbh Robert | Heating appliance has silencing unit constructed as Helmholzt resonator or as Lamda quarter wave tube with least one sound opening, and with membrane in form of film covering aforesaid opening |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103148492A (en) | 2013-06-12 |
| KR20130064030A (en) | 2013-06-17 |
| JP2013120014A (en) | 2013-06-17 |
| JP5421981B2 (en) | 2014-02-19 |
| KR101373451B1 (en) | 2014-03-13 |
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