CN2037814U - Heavy-oil preheater - Google Patents
Heavy-oil preheater Download PDFInfo
- Publication number
- CN2037814U CN2037814U CN 88215005 CN88215005U CN2037814U CN 2037814 U CN2037814 U CN 2037814U CN 88215005 CN88215005 CN 88215005 CN 88215005 U CN88215005 U CN 88215005U CN 2037814 U CN2037814 U CN 2037814U
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- CN
- China
- Prior art keywords
- heavy
- heat
- heater
- heavy oil
- utility
- 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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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model relates to a device for preheating the heavy-oil material, and belongs to the heating device class. The device adopts the high-pressure saturated vapor to burn and heat the heavy oil, and has high device investment. The existing device adopts an electric heater to heat the heavy-oil material, which easily generates the cementing and the coking phenomena. The utility model provides a device which utilizes the low-pressure saturated vapor and the residual heat of the fuel furnace to burn and heat the heavy oil. The utility model is formed by connecting a superheater which is arranged on the end of the burning furnace, a desuperheater, a heater and a steam trap by a pipeline and a valve, and has the advantages of device investment saving and energy saving.
Description
A kind of device of preheating astatki belongs to the firing equipment class.
Astatki with its preheating, was the necessary condition that improves fuel firing rate before entering burner.The existing several different methods of heating heavy oil realizes.A kind of method is to utilize saturated vapor to pass through heat exchanger, directly heavy oil is heated.But temperature required in order to be warmed to, requiring has higher saturated vapour pressure, and generally in 5 Palestine and Israels, this is the not available condition of most of small enterprises.Another kind is to take the electric heater heating, though this method has utilization of power advantage eaily, its weak point is directly to consume a large amount of high-level energy, and usually because the electrothermal device temperature is too high, produce problems such as gluing, coking, and cause reliability bad.
It is a kind of with low-pressure steam and the combustion furnace waste heat device with the astatki preheating that the purpose of this utility model is to provide.
The purpose of this utility model is achieved in that what it was made up of superheater (1), attemperator (2), heater (3), steam trap (4) and a pipeline that is installed on the combustion furnace afterbody and by-pass valve control.
Its heater (3) is a spiral heat exchanger, and it comprises heavy oil passage (8), jet chimney (7), dividing plate (13), parting bead (6), exhaust outlet (11), drain port (12), heavy oil inlet (5), heavy oil outlet (9) and steam inlet (10).
The injector that its attemperator (2) is made up of nozzle section and diffuser.
The utility model compared with prior art has following advantage:
1, utilizes low-pressure saturated steam and waste heat to heat and to save equipment investment, can make full use of waste heat again, reduce energy resource consumption.Generally can fuel savings 3～5%.
2, adopt the superheated steam heating heavy oil of proper temperature phenomenons such as gluing, coking can not occur, reliability and stability are good.
3, with parting bead passage is divided into 2～3 layers in the heater, in fact be equivalent to 2～3 spiral-plate heat exchangers, can be in less overall size scope, make heavy oil and steam that suitable flow velocity all be arranged, so that reach more effectively heat exchange, thereby can reduce heat exchanger area, reduce overall size.
Accompanying drawing 1 is this device schematic diagram.
Accompanying drawing 2 is structural representations of heater.
Accompanying drawing 3 is A-A cutaway views.
For example the utility model is described further below in conjunction with accompanying drawing:
A kind of heavy oil preheating device that is used for heater for rolling steel, it is made up of superheater (1), attemperator (2), heater (3), steam trap (4) and connecting line, by-pass valve control.Its superheater is made of two cylindrical shape plenum chambers and several superheater tube, and it is installed on the heating furnace afterbody and absorbs fume afterheat.Attemperator is made up of nozzle section and diffuser.Heater is a spiral heat exchanger, and it comprises that heavy oil passage (8), steam channel (7), dividing plate (1 3), parting bead (6), exhaust outlet (11), drain port (12), heavy oil inlet (5), heavy oil outlet (9), steam inlet (10) are formed.Introduce the superheater (1) that is installed on the heating furnace afterbody from the boiler room low-pressure saturated steam,, produce the superheated steam more than 500 ℃ with the combustion tail gas heat exchange.Superheated steam is process nozzle section and diffuser in attemperator (2), absorb a part of steam near saturation temperature of discharging by ejector action from heater (3), making overheated vapour desuperheat is the superheated steam of preference temperature, and general temperature is controlled at 300 ± 50 ℃.Then superheated steam is introduced heater (3), the upper strata in heater (3), overheated vapour is emitted heat-carrying, is cooled to nearly saturation temperature, discharges from steam drain.The vapour fraction of discharging is introduced the lower floor of heater (3), comes heating heavy oil by condensing heat-exchange, and discharges the water that coagulates of respective amount at last by steam trap.Most is drawn is back to attemperator (2) and utilizes remainder to discharge can to supply other thermal source.From the heavy oil of pump house, introduce from heater (3) bottom heavy oil inlet (5), through with steam heat-exchanging after temperature can reach 130～150 ℃, discharge from the heater top.
Claims (3)
1, a kind of preheating astatki device is characterized in that it is formed by connecting by pipeline and control valve by superheater (1), attemperator (2), heater (3), steam trap (4).
2, the device of preheating astatki according to claim 1 is characterized in that heater (3) is the spiral-plate heat exchanger that is provided with parting bead (6), exhaust outlet (11).
3, the device of preheating astatki according to claim 1 and 2 is characterized in that the injector that attemperator (2) is made up of a nozzle section and diffuser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88215005 CN2037814U (en) | 1988-10-13 | 1988-10-13 | Heavy-oil preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88215005 CN2037814U (en) | 1988-10-13 | 1988-10-13 | Heavy-oil preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2037814U true CN2037814U (en) | 1989-05-17 |
Family
ID=4847868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88215005 Withdrawn CN2037814U (en) | 1988-10-13 | 1988-10-13 | Heavy-oil preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2037814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093594C (en) * | 1995-12-26 | 2002-10-30 | 东芝株式会社 | Fuel supply device for gas-turbine and controller thereof |
-
1988
- 1988-10-13 CN CN 88215005 patent/CN2037814U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093594C (en) * | 1995-12-26 | 2002-10-30 | 东芝株式会社 | Fuel supply device for gas-turbine and controller thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |