CN2144245Y - Flame tube tubulation type direct heating furnace - Google Patents
Flame tube tubulation type direct heating furnace Download PDFInfo
- Publication number
- CN2144245Y CN2144245Y CN 92234559 CN92234559U CN2144245Y CN 2144245 Y CN2144245 Y CN 2144245Y CN 92234559 CN92234559 CN 92234559 CN 92234559 U CN92234559 U CN 92234559U CN 2144245 Y CN2144245 Y CN 2144245Y
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- CN
- China
- Prior art keywords
- tube
- fire
- tubulation
- heating furnace
- smoke pipe
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a combustion device using fluid fuels, and solves the problems of the existing heating furnace used for the gathering and transferring process of oil-gas in oilfields, such as low temperature corrosion, large consumption, not high enough heat efficiency, etc. A directly heating furnace of a fire cylinder and tube array type is composed of a chimney, a smoke pipe, a furnace casing, the fire cylinder, a burner, etc., and is characterized in that the fire cylinder in a radiation section is arranged inside with the tube array; a smoke tube serves as a convection section which is made of fine steel tubes and which is arranged inside with intubation tubes. The utility model can raise the radiation interchange intensity by 3-5 times, intensify the convection heat transfer, exceed a tube heating furnace, or a fire cylinder heating furnace or even a fire / water convection heating furnace, and be widely used for the oilfields.
Description
The utility model relates to the combustion apparatus that uses fluid fuel.
The existing heating furnace that is used for the defeated process of oilfield collection, its type of furnace development is tending towards two kinds of type of furnaces: a kind of is tubular heater, and another kind is a fire catridge heater.It is fast that tubular heater has programming rate, thermal efficiency height, the characteristics that steel quantity consumption is little, but be used for the oil field gathering and transportation process one major defect is arranged, because the heat medium temperature in the oil field gathering and transportation process is low,, thereby cause tubular heater convection section tube wall temperature low generally at 40～60 ℃, boiler tube often is under the dew-point temperature moves, cause serious cold end corrosion.Characteristics such as fire cartridge type directly-fired kiln has convenient management, and exhaust gas temperature is low, and thermic load is stable are comparatively general in field use.But because the heat exchange mode of this heating furnace heat medium one side is heat transfer free convection, thereby have only the increase heat exchange area for improving the thermal efficiency, so steel consumption is than big many of tube furnace.
The purpose of this utility model is the characteristics in view of above-mentioned heating furnace, structurally makes improvements, and designs a kind of flame tube tubulation type directly-fired kiln, to overcome the shortcoming that above-mentioned heating furnace exists, keeps its advantage.
The purpose of this utility model reaches like this: the flame tube tubulation type heating furnace, form by chimney, smoke pipe, furnace shell, intubate, burner, media dispenser, fire tube, tubulation, expansion joint and fire trough, it is characterized in that furnace radiant Duan Weihuo tube, in the fire tube, be provided with tubulation, behind the tubulation of heated medium in entering the fire tube, enter media dispenser, promptly entered in the furnace shell; Stove heat convection section is a smoke pipe, and smoke pipe adopts fine steel tube to be immersed in the medium, and is provided with intubate in smoke pipe.
The design of above-mentioned radiant heat transfer is compared with original fire catridge heater, and heat transfer intensity can improve 3～5 times; And the design of heat convection section has improved convection transfer rate, has strengthened convection heat transfer' heat-transfer by convection.Thereby reduce final exhaust gas temperature and improved the thermal efficiency.
Below by drawings and Examples the utility model is elaborated again:
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model sectional drawing.
Mark among the figure: 1. chimney, 2. smoke pipe, 3. intubate, 4. boiler tube, 5. media outlet, 6. tubulation, 7. fire tube, 8. heat-insulation layer, 9. media dispenser, 10. expansion joint, 11. tubulation fixed mounts, 12. fire troughs, 13. burners.
As shown in the figure: the flame tube tubulation type directly-fired kiln, form by chimney 1, smoke pipe 2, furnace shell 4, burner 13, media dispenser 9, fire tube 7, tubulation 6, expansion joint 10 and fire trough 12, it is characterized in that: furnace radiant Duan Weihuo tube 7 is provided with tubulation 6 behind fire tube 7 inner thermal insulating layers 8; Stove heat convection section is a smoke pipe 2, and smoke pipe 2 adopts fine steel tube, is immersed in the medium, and is provided with intubate 3 in smoke pipe 2, and furnace shell 4 is the pressure-bearing Heated container.For large-scale combustion apparatus, fire tube 7 be arranged two in parallel.At fire tube 7 rear portions, before burner 13, be provided with fire trough 12.Fire tube 7 is through, and its end has end cap 14, end cap 14 liner heat-insulating materials, and promptly heat-insulation layer 8.In fire tube 7,6 of tubulations are provided with tubulation fixed mount 11.
Working condition of the present utility model is such: heated medium (oil-polluted water or former wet goods liquid) at first by inlet enter carry out heat exchange in the tubulation 6 in the fire tube 7 of furnace radiant section after, enter media dispenser 9, entered (being in the furnace shell 4) in the container, after fire tube 7 and smoke pipe 2 heat exchange, discharge from exporting 5.The radiant section of this heating furnace is a fire tube 7, after the burning brick of fire tube 7 is heat-insulation layer 8, be provided with tubulation 6(and can be arranged two fiery in parallel) for main equipment, because the medium of forced flow in the tubulation 6, can from high-temperature flue gas, obtain very big a part of radiations heat energy, and influence the radiant heat transfer of fire tube 7 hardly.Because medium is forced-convection heat transfer in the tubulation 6, compares with the heat transfer free convection of original fire catridge heater radiant section side medium, heat transfer intensity can improve 3～5 times.The heat convection section of flame tube tubulation type directly-fired kiln is a smoke pipe 2, and smoke pipe 2 is immersed in the medium.Under the resistance drop that allows, adopt the minor diameter pipe to make smoke pipe as far as possible.In this heat convection section, flue gas is more much smaller to the medium coefficient of heat transfer than tube wall to the coefficient of heat transfer of tube wall, in order to improve total coefficient of heat transfer of this section, will improve the coefficient of heat transfer of fume side.For this reason, at the convection section of this device, adopted fine steel tube to make to establish in smoke pipe 2 and the smoke pipe 2 structure of intubate 3.It is long-pending so not only to have increased convection heating surface under the prerequisite that does not increase the heating surface physical dimension, and after the flow-disturbing effect of 3 pairs of flue gases of intubate and the flue gas transversal flow intubate 3, has improved convection transfer rate, has strengthened convection heat transfer' heat-transfer by convection.The convection section of this device is compared with tubular heater has significant advantage, and fume side tube wall and flue gas have a narrow range of temperature, and help reducing final exhaust gas temperature, improves the thermal efficiency.Fire trough 12 is to be built into quarl, and length is 1～1.5 meter.Its effect is smooth combustion, prevents that thermal-flame from directly impacting tubulation 6.Fire tube 7, one ends of through tubulation have end cap 14, and end cap 14 liner heat-insulating materials are heat-insulation layer 8.The fire tube 7 of this pattern is opened the installation and maintenance that can be convenient to tubulation 6 behind the end cap 14.Tubulation fixed mount 11 had both played the pipe support effect of support tube, played the effect of slide rail again when mounted.Fire tube expansion joint 10 is in order to make the free wxpansion and being provided with in heating process of fire tube.
Claims (5)
1, flame tube tubulation type directly-fired kiln, form by chimney 1, smoke pipe 2, furnace shell 4, burner 13, media dispenser 9, fire tube 7, tubulation 6, expansion joint 10 and fire trough 12, it is characterized in that: furnace radiant Duan Weihuo tube 7 is provided with tubulation 6 behind fire tube 7 inner thermal insulating layers 8; Stove heat convection section is a smoke pipe 2, and smoke pipe 2 adopts fine steel tube, is immersed in the medium, and is provided with intubate 3 in smoke pipe 2, and furnace shell 4 is the pressure-bearing Heated container.
2, flame tube tubulation type directly-fired kiln as claimed in claim 1 is characterized in that fire tube 7 be arranged two in parallel.
3, flame tube tubulation type directly-fired kiln as claimed in claim 1 is characterized in that being provided with fire trough 12 at fire tube 7 rear portions before burner 13.
4, flame tube tubulation type directly-fired kiln as claimed in claim 1 is characterized in that fire tube 7 for through, and its end has end cap 14, end cap 14 liner heat-insulating materials, and promptly heat-insulation layer 8.
5, flame tube tubulation type directly-fired kiln as claimed in claim 1 is characterized in that 6 of tubulations are provided with tubulation fixed mount 11 in fire tube 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234559 CN2144245Y (en) | 1992-10-10 | 1992-10-10 | Flame tube tubulation type direct heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92234559 CN2144245Y (en) | 1992-10-10 | 1992-10-10 | Flame tube tubulation type direct heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2144245Y true CN2144245Y (en) | 1993-10-20 |
Family
ID=33776587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92234559 Expired - Fee Related CN2144245Y (en) | 1992-10-10 | 1992-10-10 | Flame tube tubulation type direct heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2144245Y (en) |
-
1992
- 1992-10-10 CN CN 92234559 patent/CN2144245Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |