CN2578733Y - Indirect heating furnace with enhanced heat transference and chimney - Google Patents
Indirect heating furnace with enhanced heat transference and chimney Download PDFInfo
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- CN2578733Y CN2578733Y CN 02255365 CN02255365U CN2578733Y CN 2578733 Y CN2578733 Y CN 2578733Y CN 02255365 CN02255365 CN 02255365 CN 02255365 U CN02255365 U CN 02255365U CN 2578733 Y CN2578733 Y CN 2578733Y
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- smoke pipe
- smoke
- fire
- increase
- heat
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Abstract
The utility model relates to a fire cylinder type indirect heating furnace with enhanced heat transference and slight positive pressure, which is composed of a horizontal cylindrical shell body, a smoke pipe of a U-shaped fire cylinder, a heating pipe coil which is arranged at the inner, middle and upper part of the shell body, the smoke pipe of the U-shaped fire cylinder is installed at the inner-lower part of the shell body The utility model is characterized in that the cylinder wall of the fire cylinder, which is connected with a burner with forced air blast, is corrugated. The wall of the smoke pipe, which is connected d with a chimney, is spiral. A spiral turbolator is arranged in the smoke pipe. The corrugated fire cylinder can increase the rigidity of the fire cylinder when the fire cylinder is under outer pressure, and increase the radiation heat transferring area of the fire cylinder. In the same smoke flowing state, the spiral wall of the smoke pipe can increase the heat transfer coefficient of an inner film of the smoke by about 30% in order to increase the effect of convection heat transfer. The spiral turbolator which is added in the smoke pipe can increase the degree of turbulence of the smoke to further increase the heat transfer coefficient of the smoke pipe. The utility model enables smaller heat transferring area to obtain more heat to reduce the smoking exhausting temperatuer of the smoke and increase the heat efficiency of the heating furnace.
Description
One, technical field
The utility model patent relates to a kind of augmentation of heat transfer pressurized firing fire cartridge type indirect heater that the oil gas field oil-gas gathering and transportation system uses that is used for.
Two, background technology
Heating furnace is one of capital equipment in the oil gas field oil-gas gathering and transportation system.Its effect is that crude oil, natural gas and other heated medium are heated to the desired temperature of technology, so that sedimentation, dewatering and desalting, conveying and preliminary working.Fire tube indirect type heating furnace is the most popular a kind of type of furnace of oil gas field.Its operation principle is: gas or liquid fuel are by the fiery cylinder roasting of burner bottom in being immersed in body of heater, flame that fuel combustion produces and hot flue gas are delivered in the body lotion in the stove by the fire-cylinder fire tube wall and go, and body lotion is the heating of the heated medium in the heat(ing) coil that is arranged on the body of heater internal upper part.
Traditional fire tube indirect type heating furnace burning is negative-pressure firing, and promptly pressure in the burner hearth is lower than atmospheric pressure, and the draft that the needed air that burns is produced by chimney height and flue-gas temperature sucks burner hearth and fuel mix burning.This mode is suitable for for the less fire tube indirect type heating furnace of thermic load, but then there are disadvantages such as fuel combustion is incomplete, the thermal efficiency is low, equipment volume is big in large-scale heating furnace with this mode.Along with the exploitation in oil field later stage, the heating furnace of requirement load is increasing.Therefore, need to develop a kind of mode that makes the heating furnace overheavy firing, to be used for the application of large-scale fire tube indirect type heating furnace.
Three, summary of the invention
For the enhanced fuel burning, improve thermal efficiency of heating furnace to reduce the oil gas fuel consumption, reduce the equipment metal consumption, reduce equipment manufacturing cost, invent a kind of augmentation of heat transfer pressurized firing indirect type heating furnace.
The liquid level gauge of safety valve, Pressure gauge and all sides of the chimney of the forced-air blast burner of the heat(ing) coil of middle and upper part, fire-cylinder fire tube head end, end, the heat transfer medium in the housing, housing side last week is formed in the U-shaped fire-cylinder fire tube that the utility model is equipped with by bottom in horizontal cylindrical shell, the housing, the housing.It is characterized in that the fire tube barrel that is connected with the forced-air blast burner is corrugated, the smoke pipe wall that is connected with chimney is a spirality, is provided with the spirality turbolator in the smoke pipe.Corrugated fire tube can improve rigidity and the increase radiant heat transfer area of fire tube when being subjected to external pressure.Spirality smoke pipe wall can improve the inner membrance exothermic coefficient about 30% of flue gas under identical flow of flue gas state, thereby improves the convection heat transfer' heat-transfer by convection effect.Increase the turbulence level that the spirality turbolator can improve flue gas in the smoke pipe, further improve the smoke pipe heat transfer coefficient.Make less heat transfer area obtain more heat output, thereby reduce the flue gas exhaust gas temperature, improve thermal efficiency of heating furnace.
The utility model has been compared following advantage with traditional negative-pressure firing indirect heater:
1. the augmentation of heat transfer pressurized firing can improve the calorific intensity of fire-cylinder fire tube, thereby saves steel and the size that reduces equipment.
2. the excess air coefficient when adopting forced-draft burner can effectively control burning, thus heat loss due to exhaust gas reduced.
3. by adopting corrugated fire tube, augmentation of heat transfer combustion technologies such as spiral smoke pipe and flue gas turbolator can improve flow velocity and the turbulence level of flue gas at convection section greatly, thereby improve the heat transfer coefficient of convection current side, make exhaust gas temperature reduce, and the thermal efficiency improves.The thermal efficiency of thermal efficiency ratio negative-pressure firing indirect heater of the present utility model improves 10-12%.
Four, description of drawings
Accompanying drawing 1-augmentation of heat transfer pressurized firing fire cartridge type indirect heater structural representation.
Accompanying drawing 2-augmentation of heat transfer pressurized firing fire-cylinder fire tube structural representation.
Spiral smoke pipe of accompanying drawing 3-and flue gas turbolator structural representation.
Five, embodiment
The utility model by bottom in horizontal cylindrical shell 1, the housing forced-air blast burner 3 of heat(ing) coil 7, the fire-cylinder fire tube head end of middle and upper part in U-shaped fire-cylinder fire tube 2, the housing, terminal chimney 4 are housed, the liquid level gauge 8 of Pressure gauge 5, safety valve 6 and all sides of heat transfer medium, housing side last week in the housing is formed (shown in Figure 1).It is characterized in that the fire tube barrel that is connected with the forced-air blast burner is corrugated (shown in Figure 2), the smoke pipe wall that is connected with chimney is a spirality, is provided with spirality turbolator (shown in Figure 3) in the smoke pipe.Corrugated fire tube can improve rigidity and the increase radiant heat transfer area of fire tube when being subjected to external pressure.Spirality smoke pipe wall can improve the inner membrance exothermic coefficient about 30% of flue gas under identical flow of flue gas state, thereby improves the convection heat transfer' heat-transfer by convection effect.Increase the turbulence level that the spirality turbolator can improve flue gas in the smoke pipe, further improve the smoke pipe heat transfer coefficient.Make less heat transfer area obtain more heat output, thereby reduce the flue gas exhaust gas temperature, improve thermal efficiency of heating furnace.
Operation principle of the present utility model is: liquid or gaseous fuel are discharged by chimney after the fire-cylinder fire tube internal combustion that is immersed in body of heater body lotion bottom by the forced-draft burner that has blast apparatus.The flame that fuel combustion produces passes to fiery tube wall surface with the heat radiation form and hot flue gas passes to the smoke pipe wall with the convection heat transfer' heat-transfer by convection form, fire-cylinder fire tube wall heat is delivered in the interior heat transfer medium of stove again and goes, heated MEDIA FLOW is crossed heat(ing) coil, and the heat transfer medium of heat is heated to the heated medium in the heat(ing) coil temperature of technological requirement.
Because adopt the augmentation of heat transfer pressurized firing, the excess air coefficient during fuel combustion can control to optimum state, therefore reduced heat loss due to exhaust gas.By adopting augmentation of heat transfer combustion technologies such as spiral groove smoke tube and flue gas turbolator can improve flow velocity and the turbulence level of flue gas greatly at convection section, thereby improve the heat transfer coefficient of convection current side, make heating furnace metal quality when same load significantly reduce.
Claims (1)
1. augmentation of heat transfer pressurized firing fire cartridge type indirect heater, by bottom in horizontal cylindrical shell, the housing heat(ing) coil of middle and upper part in U-shaped fire-cylinder fire tube, the housing, the forced-air blast burner of fire-cylinder fire tube head end, terminal chimney, the heat transfer medium in the housing are housed, the liquid level gauge of safety valve, Pressure gauge and all sides of housing side last week is formed, it is characterized in that the fire tube barrel that is connected with the forced-air blast burner is corrugated, the smoke pipe wall that is connected with chimney is a spirality, is provided with the spirality turbolator in the smoke pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255365 CN2578733Y (en) | 2002-11-18 | 2002-11-18 | Indirect heating furnace with enhanced heat transference and chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255365 CN2578733Y (en) | 2002-11-18 | 2002-11-18 | Indirect heating furnace with enhanced heat transference and chimney |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2578733Y true CN2578733Y (en) | 2003-10-08 |
Family
ID=33723870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02255365 Expired - Lifetime CN2578733Y (en) | 2002-11-18 | 2002-11-18 | Indirect heating furnace with enhanced heat transference and chimney |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2578733Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374085A (en) * | 2014-10-17 | 2015-02-25 | 中国石油大学(华东) | Fire tube heating furnace |
| CN105115158A (en) * | 2015-09-18 | 2015-12-02 | 唐山冀东石油机械有限责任公司 | Fire catridge type indirect heating furnace |
-
2002
- 2002-11-18 CN CN 02255365 patent/CN2578733Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374085A (en) * | 2014-10-17 | 2015-02-25 | 中国石油大学(华东) | Fire tube heating furnace |
| CN105115158A (en) * | 2015-09-18 | 2015-12-02 | 唐山冀东石油机械有限责任公司 | Fire catridge type indirect heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121118 Granted publication date: 20031008 |