CN101852433B - High temperature flame divider and fuel and gas heater - Google Patents
High temperature flame divider and fuel and gas heater Download PDFInfo
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- CN101852433B CN101852433B CN2010101890638A CN201010189063A CN101852433B CN 101852433 B CN101852433 B CN 101852433B CN 2010101890638 A CN2010101890638 A CN 2010101890638A CN 201010189063 A CN201010189063 A CN 201010189063A CN 101852433 B CN101852433 B CN 101852433B
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Abstract
The invention relates to a high temperature flame divider and a fuel and gas heater. The high temperature flame divider is used for reflecting high temperature flame from a burning device in the fuel and gas heater to a heat exchanger and comprises a diffuser and a supporting structure fixed on the side face of the diffuser, wherein the supporting structure is arranged along the direction of a central axis of the diffuser; the diffuser is a through hollow frustum with a certain conicity. The high temperature flame divider has the advantages of reducing the burning extent of the heat exchanger of the fuel and gas heater caused by a high temperature flame, increasing the radiation heat exchanging area of the high temperature flame, decreasing the heat energy loss and the tail gas pollution extent while improving the heat exchanging efficiency of the fuel and gas heater.
Description
Technical field
The present invention relates to a kind of thermal-flame water conservancy diversion and divide the flame technology, particularly a kind of high temperature flame divider that in fuel oil and combustion heater combustion process, uses, and the fuel oil and the combustion heater that use this high temperature flame divider.
Background technology
Fuel oil and combustion heater comprise burner and heat-exchanger rig, and the heat that fuel oil or combustion gas discharge through fully burning in burner enters heat-exchanger rig and carries out heat exchange.Because perfect day by day combustion technology, make the volume calorific intensity of the burner in fuel oil and the combustion heater that significantly raising be arranged, the thermal-flame temperature in burner exit can reach 1200 ℃～1800 ℃, thermal-flame directly clashes into the heat-exchanger rig wall, cause the ablation of heat exchanging device and too high exhaust emissions temperature easily, so just shorten the service life of heater greatly, also reduced the heat energy utilization rate simultaneously.
Summary of the invention
The present invention is directed to the outlet flame temperature height of burner in existing fuel oil and the combustion heater, cause the heat exchanging device to ablate and the excessive problem of heat-energy losses, a kind of high temperature flame divider is provided, can reduce the ablation degree of thermal-flame to the heat-exchanger rig of fuel oil and combustion heater, improve the serviceability of fuel oil and combustion heater, the present invention also provides a kind of fuel oil and combustion heater that uses this high temperature flame divider.
Technical scheme of the present invention is as follows:
A kind of high temperature flame divider, the thermal-flame that is used for sending from the burner of fuel oil and combustion heater reflexes to the heat-exchanger rig, it is characterized in that, comprise baffle and the supporting construction that is fixed on the baffle side, described supporting construction is provided with along the baffle central axial direction, and described baffle is to have the outlet of the opening surface of the hollow frustum of perforation of certain taper and its minor diameter towards burner.
Described supporting construction is space one segment distance and two gripper shoes that are fixed on the baffle side.
Described gripper shoe is symmetrical arranged in the baffle side.
The surface of described baffle is provided with the heat-stable ceramic coating.
Described baffle is made by heat-resisting steel sheet and plate 1Cr25Ni20Si2, and the wall thickness of described hollow frustum is 3mm～5mm.
Adopt the fuel oil and the combustion heater of above-mentioned high temperature flame divider, comprise the burner and the heat-exchanger rig that connect successively, the front end of described burner is provided with nozzle, it is characterized in that, described high temperature flame divider is arranged between burner and the heat-exchanger rig, the central axis of described baffle and flame kernel dead in line, the cone element corner dimension of baffle be nozzle spray angle N doubly, 1＜N≤1.4 wherein, the spacing of described high temperature flame divider and nozzle is 0.45～0.65 times that thermal-flame runs through distance.
1.2≤N≤1.4。
Described high temperature flame divider is arranged at the porch of heat-exchanger rig, and described supporting construction connects the inwall of heat-exchanger rig porch.
Technique effect of the present invention is as follows:
The high temperature flame divider that the present invention relates to can be used for fuel oil and combustion heater, is used to shorten running through apart from making the homodisperse wall that reflexes to heat-exchanger rig of flame of thermal-flame that burner sends.The flame that produces in fuel oil and the combustion heater combustion process is divided into internal flame usually and flame envelope is two-layer, and comparatively speaking, internal flame is the cold flame that runs through apart from little, and flame envelope is the thermal-flame that runs through apart from big.This high temperature flame divider comprises the supporting construction of baffle and its side, it is placed horizontally at the burner of fuel oil and combustion heater and the appropriate location between the heat-exchanger rig, baffle for the hollow frustum that connects, have certain taper, because the temperature of internal flame is low, run through apart from little, can not cause ablation by the heat exchanging device, so internal flame can pass from the inside of baffle, directly enters heat-exchanger rig; The temperature height of flame envelope, run through apart from big, when flame envelope strikes the taper wall of baffle of high temperature flame divider, can produce reflection, thereby the thermal-flame of assembling is disperseed, scatter to from a plurality of directions on the wall of heat-exchanger rig, can effectively shorten the distance that runs through of thermal-flame, avoided the thermal-flame in burner of the prior art exit directly to clash into the heat-exchanger rig wall, be the flame envelope of high temperature concentrate the heat exchanging device any wash away the ablation that causes, and the high-temperature tail gas that caused of the heat of displacement discharging in time; Because the supporting construction of baffle side is along the setting of baffle central axial direction, promptly along the direction setting of thermal-flame, so can not stop the trace of thermal-flame.Because high temperature flame divider of the present invention is set, can reduce the ablation degree of thermal-flame to the heat-exchanger rig of fuel oil and combustion heater, increased the area of thermal-flame radiation heat transfer, in the heat exchange efficiency that has improved fuel oil and combustion heater, heat-energy losses and tail gas pollution degree have been reduced.
Fuel oil that the present invention relates to and combustion heater, between burner and heat-exchanger rig, high temperature flame divider is set, the thermal-flame that sprays from burner is broken up and is reflected through high temperature flame divider, scatter to from a plurality of directions on the wall of heat-exchanger rig, reduced the distance that runs through of thermal-flame, so ablation that this structure can avoid thermal-flame heat exchanging device to cause, and increased the area of thermal-flame radiation heat transfer, help of the abundant absorption of the interior heat transferring medium of heat-exchanger rig to calory burning, so fuel oil of the present invention and combustion heater are owing to comprise high temperature flame divider, make heat exchange efficiency to be improved significantly, this fuel oil and combustion heater have good serviceability, and heat-energy losses and tail gas pollution degree are all very low.
Description of drawings
Fig. 1 is the structural representation of high temperature flame divider of the present invention.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is the structural representation of fuel oil of the present invention and combustion heater.
Each label lists as follows among the figure:
The 1-baffle; The 2-gripper shoe; The 3-burner; The 4-nozzle; The 5-heat-exchanger rig; The 6-jockey.
The specific embodiment
The present invention will be described below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of high temperature flame divider of the present invention, and Fig. 2 is that the A of Fig. 1 is to view.This high temperature flame divider comprises a baffle 1 and two gripper shoes 2 that are welded and play fixed supporting role in one with baffle 1, gripper shoe 2 is symmetricly set on baffle 1 both sides and along baffle 1 central axial direction setting, and baffle 1 is the hollow frustum of the perforation with certain taper of being made by the heating resisting metal of the thick heat-resisting steel sheet and plate 1Cr25Ni20Si2 of 3mm～5mm or other composition.Can evenly spray special high-temperature heat-resistance ceramic coating on the surface of baffle 1, this high-temperature heat-resistance ceramic coating is that the Aero-Space apparatus flame jet pipe of 1500 ℃～2600 ℃ of tolerance levels is ceramic coated, can prevent the ablation of thermal-flame to the baffle body.
High temperature flame divider shown in Figure 1 is applied in fuel oil and the combustion heater, it is placed horizontally between burner and the heat-exchanger rig, comprise the exit or the heat-exchanger rig porch that it are placed horizontally at burner, the central axis of baffle 1 and flame kernel dead in line, the opening surface of the minor diameter of baffle 1 is towards the outlet of burner, and the large diameter opening surface of baffle 1 is towards the inlet of heat-exchanger rig.The temperature that produces in fuel oil and the combustion heater combustion process is low, the inside of running through apart from little internal flame from baffle passes, directly enter heat-exchanger rig and carry out exchange heat, and the temperature height, run through the conical outer wall face that can strike the baffle of high temperature flame divider apart from big flame envelope, produce reflection, the thermal-flame of assembling is disperseed, scatter to from a plurality of directions on the wall of heat-exchanger rig, effectively shorten the distance that runs through of thermal-flame, promptly avoided the ablation of thermal-flame to the heat-exchanger rig of fuel oil and combustion heater, increased the area of thermal-flame radiation heat transfer, in the heat exchange efficiency that has improved fuel oil and combustion heater, heat-energy losses and tail gas pollution degree have been reduced.
Fig. 3 is the structural representation of fuel oil of the present invention and combustion heater, burner 3 connects as one by jockey 6 with heat-exchanger rig 5, form fuel oil and combustion heater, this fuel oil and combustion heater have also adopted high temperature flame divider shown in Figure 1, high temperature flame divider is arranged at the porch of heat-exchanger rig 5, be connected in by gripper shoe 2 on the inwall of porch of heat-exchanger rig 5, the central axis of baffle 1 and flame kernel dead in line, the opening surface of the minor diameter of baffle 1 is towards the outlet of burner 3.The tapering size of baffle 1 is determined the tapering of baffle 1 by the spray angle that is installed in the nozzle 4 in the burner 3
Wherein a is the angle of baffle cone element, and it is the spray angle of N nozzle 4 doubly that a is set, and wherein, 1＜N≤1.4 are preferably 1.2≤N≤1.4, and the distance of the front end of high temperature flame divider and nozzle 4 is 0.45～0.65 times that thermal-flame runs through distance.For example, the flame spray angle of nozzle is 60 °, and thermal-flame runs through apart from being 550mm, and the spacing of nozzle and high temperature flame divider is 300mm, and a is 72 °, tapering T=1.453.
The operation principle of fuel oil of the present invention and combustion heater is: when fuel oil and combustion heater operation heating, burner 3 produces has the thermal-flame that necessarily runs through distance and burning shape, impinge upon fiercely on the conical surface outer wall of baffle 1 of the high temperature flame divider that has sprayed the high-temperature heat-resistance ceramic coating, through the reflection of the conical surface outer wall thermal-flame of assembling is disperseed, scatter on heat-exchanger rig 5 walls from a plurality of directions, effectively shorten the distance that runs through of thermal-flame, can running through with thermal-flame apart from shortening at least
Because thermal-flame is broken up, avoided thermal-flame to concentrate the ablation that is caused of washing away of heat exchanging device 5 certain a bit, increased the area of thermal-flame radiation heat transfer simultaneously, help of the abundant absorption of the interior heat transferring medium of heat-exchanger rig 5 interlayers to calory burning, in the heat exchange efficiency that has improved fuel oil and combustion heater, heat-energy losses and tail gas pollution degree have been reduced.
Should be pointed out that the above specific embodiment can make those skilled in the art more fully understand the invention, but do not limit the present invention in any way creation.Therefore; although this specification has been described in detail the invention with reference to drawings and Examples; but; those skilled in the art are to be understood that; still can make amendment or be equal to replacement the invention; in a word, all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the invention, and it all should be encompassed in the middle of the protection domain of the invention patent.
Claims (8)
1. high temperature flame divider, the thermal-flame that is used for sending from the burner of fuel oil and combustion heater reflexes to the heat-exchanger rig, it is characterized in that, comprise baffle and the supporting construction that is fixed on the baffle side, described supporting construction is provided with along the baffle central axial direction, and described baffle is to have the outlet of the opening surface of the hollow frustum of perforation of certain taper and its minor diameter towards burner.
2. high temperature flame divider according to claim 1 is characterized in that, described supporting construction is space one segment distance and two gripper shoes that are fixed on the baffle side.
3. high temperature flame divider according to claim 2 is characterized in that described gripper shoe is symmetrical arranged in the baffle side.
4. according to the described high temperature flame divider of one of claim 1 to 3, it is characterized in that the surface of described baffle is provided with the heat-stable ceramic coating.
5. according to the described high temperature flame divider of one of claim 1 to 3, it is characterized in that described baffle is made by heat-resisting steel sheet and plate 1Cr25Ni20Si2, the wall thickness of described frustum is 3mm～5mm.
6. adopt the fuel oil and the combustion heater of one of claim 1 to 5 described high temperature flame divider, comprise the burner and the heat-exchanger rig that connect successively, the front end of described burner is provided with nozzle, it is characterized in that, described high temperature flame divider is arranged between burner and the heat-exchanger rig, the central axis of described baffle and flame kernel dead in line, the cone element corner dimension of baffle be nozzle spray angle N doubly, 1＜N≤1.4 wherein, the spacing of described high temperature flame divider and nozzle is 0.45～0.65 times that thermal-flame runs through distance.
7. fuel oil according to claim 6 and combustion heater is characterized in that, 1.2≤N≤1.4.
8. according to claim 6 or 7 described fuel oil and combustion heaters, it is characterized in that described high temperature flame divider is arranged at the porch of heat-exchanger rig, described supporting construction connects the inwall of heat-exchanger rig porch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101890638A CN101852433B (en) | 2010-06-02 | 2010-06-02 | High temperature flame divider and fuel and gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101890638A CN101852433B (en) | 2010-06-02 | 2010-06-02 | High temperature flame divider and fuel and gas heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101852433A CN101852433A (en) | 2010-10-06 |
| CN101852433B true CN101852433B (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101890638A Active CN101852433B (en) | 2010-06-02 | 2010-06-02 | High temperature flame divider and fuel and gas heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112283936B (en) * | 2020-09-16 | 2022-07-29 | 北京北机机电工业有限责任公司 | High-efficient heat transfer device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3543742A (en) * | 1967-07-07 | 1970-12-01 | Sueddeutsche Kuehler Behr | Heater for burning liquid fuel,primarily benzine,especially extraneous heater for motor vehicles |
| DE1579741B1 (en) * | 1965-11-20 | 1971-06-03 | Sueddeutsche Kuehler Behr | Heating equipment operated with liquid fuel, especially for motor vehicles |
| US4543943A (en) * | 1982-03-11 | 1985-10-01 | Webasto-Werk W. Baier Gmbh & Co. | Heater fired with liquid fuel |
| US5046663A (en) * | 1988-11-21 | 1991-09-10 | Webasto Ag Fahrzeugtechnik | Heater |
| CN2625596Y (en) * | 2003-06-20 | 2004-07-14 | 三一重工股份有限公司 | Diesel cold starting preheating device for engineering machinery |
| DE102004005113A1 (en) * | 2004-02-02 | 2005-08-25 | Webasto Ag | Venturi burner for mobile heater for e.g. motor vehicle, contains cone shaped trap for unburnt fuel |
| CN201296153Y (en) * | 2008-10-10 | 2009-08-26 | 山东大学 | Vehicle liquid gas and fuel heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201779652U (en) * | 2010-06-02 | 2011-03-30 | 北京北机机电工业有限责任公司 | High-temperature flame divider and fuel and gas heater |
-
2010
- 2010-06-02 CN CN2010101890638A patent/CN101852433B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1579741B1 (en) * | 1965-11-20 | 1971-06-03 | Sueddeutsche Kuehler Behr | Heating equipment operated with liquid fuel, especially for motor vehicles |
| US3543742A (en) * | 1967-07-07 | 1970-12-01 | Sueddeutsche Kuehler Behr | Heater for burning liquid fuel,primarily benzine,especially extraneous heater for motor vehicles |
| US4543943A (en) * | 1982-03-11 | 1985-10-01 | Webasto-Werk W. Baier Gmbh & Co. | Heater fired with liquid fuel |
| US5046663A (en) * | 1988-11-21 | 1991-09-10 | Webasto Ag Fahrzeugtechnik | Heater |
| CN2625596Y (en) * | 2003-06-20 | 2004-07-14 | 三一重工股份有限公司 | Diesel cold starting preheating device for engineering machinery |
| DE102004005113A1 (en) * | 2004-02-02 | 2005-08-25 | Webasto Ag | Venturi burner for mobile heater for e.g. motor vehicle, contains cone shaped trap for unburnt fuel |
| CN201296153Y (en) * | 2008-10-10 | 2009-08-26 | 山东大学 | Vehicle liquid gas and fuel heater |
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| CN101852433A (en) | 2010-10-06 |
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