CN201779652U - High-temperature flame divider and fuel and gas heater - Google Patents
High-temperature flame divider and fuel and gas heater Download PDFInfo
- Publication number
- CN201779652U CN201779652U CN2010202117835U CN201020211783U CN201779652U CN 201779652 U CN201779652 U CN 201779652U CN 2010202117835 U CN2010202117835 U CN 2010202117835U CN 201020211783 U CN201020211783 U CN 201020211783U CN 201779652 U CN201779652 U CN 201779652U
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- baffle
- heat
- temperature flame
- high temperature
- flame
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Abstract
The utility model 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 generated from a burning device in the fuel and gas heater into a heat exchange device and comprises a flow guider and a supporting structure fixed on the side surface of the supporting structure, the supporting structure is arranged along a center axis of the flow guider, and the flow guider is provided with a through hollow frustum with certain taper. The high-temperature flame divider can reduce burning degree of high-temperature flame to the heat exchange device of the fuel and gas heater, increases high-temperature flame radiation heat exchange area, and reduces heat energy loss and tail gas pollution degree while increasing heat exchange efficiency of the fuel and gas heater.
Description
Technical field
The utility model relates to a kind of thermal-flame water conservancy diversion and divides the flame technology, particularly a kind of high temperature flame divider that uses in fuel oil and combustion heater combustion process, 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.
The utility model content
The utility model is at 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 utility model also provides a kind of fuel oil and combustion heater that uses this high temperature flame divider.
The technical solution of the utility model 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 the hollow frustum with perforation of certain taper.
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 opening surface of the minor diameter of baffle is towards the outlet of burner, the cone element corner dimension of baffle be nozzle spray angle N doubly, described 1＜N≤1.4, the spacing of described high temperature flame divider and nozzle are 0.45～0.65 times that thermal-flame runs through distance.
Described 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 utility model is as follows:
The high temperature flame divider that the utility model 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 utility model 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 utility model 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 utility model 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 utility model.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is the structural representation of fuel oil of the present utility model 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
Below in conjunction with accompanying drawing the utility model is described.
Fig. 1 is the structural representation of high temperature flame divider of the present utility model, 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 utility model 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 utility model 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 the hollow frustum with perforation of certain taper.
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 opening surface of the minor diameter of baffle is towards the outlet of burner, the cone element corner dimension of baffle be nozzle spray angle N doubly, described 1＜N≤1.4, the spacing of described high temperature flame divider and nozzle are 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, described 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 |
|---|---|---|---|
| CN2010202117835U CN201779652U (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 |
|---|---|---|---|
| CN2010202117835U CN201779652U (en) | 2010-06-02 | 2010-06-02 | High-temperature flame divider and fuel and gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779652U true CN201779652U (en) | 2011-03-30 |
Family
ID=43792863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202117835U Expired - Lifetime CN201779652U (en) | 2010-06-02 | 2010-06-02 | High-temperature flame divider and fuel and gas heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852433A (en) * | 2010-06-02 | 2010-10-06 | 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 CN2010202117835U patent/CN201779652U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852433A (en) * | 2010-06-02 | 2010-10-06 | 北京北机机电工业有限责任公司 | High temperature flame divider and fuel and gas heater |
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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: 20110330 Effective date of abandoning: 20111116 |