CN201443871U - Regenerative tubular gas heating furnace - Google Patents
Regenerative tubular gas heating furnace Download PDFInfo
- Publication number
- CN201443871U CN201443871U CN2009200100377U CN200920010037U CN201443871U CN 201443871 U CN201443871 U CN 201443871U CN 2009200100377 U CN2009200100377 U CN 2009200100377U CN 200920010037 U CN200920010037 U CN 200920010037U CN 201443871 U CN201443871 U CN 201443871U
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- heat
- gas
- heating furnace
- combustion
- pipe
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- Expired - Fee Related
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Abstract
The utility model relates to a device for secondary heating of circulating gas in the oil shale retorting process. The utility model is characterized in that a tubular heat exchanger is arranged in the center of a regenerative heating furnace, a combustion chamber is arranged on the two sides of the heating furnace and a regenerative chamber is arranged at the lower part of the combustion chamber; and cold gas for combustion is let in from the upper part of the regenerative chamber, a combustion air inlet pipe enters from the lower part of the combustion chamber, a four-way reversing valve is respectively connected with a combustion air inlet, a blower and an induced draft fan, and a circulating gas inlet and an outlet are installed on the tubular heat exchanger. The utility model has the advantage that the device can continuously, evenly and stably supply hot gas of 700 degrees to the retort furnace.
Description
Affiliated technical field
The utility model is a kind of device that circulating mash gas is carried out post bake in oil shale distillation process.Its effect is to adopt the mixed heat transfer mode of accumulation of heat, radiation, convection current that circulating mash gas is heated to 700 ℃ from 500 ℃, and exhaust gas temperature is lower than 150 ℃.
Background technology
In oil shale distillation process, need to supply with about 700 ℃ hot gas to heating furnace, and should be continuously, balanced, stablize, otherwise retort process can not normally be carried out.Fushun formula thermal storage heating stove is the equipment of intermittent work, establish a combustion chamber, a regenerator in the stove, in accumulation of heat, can not heat gas, can not accumulation of heat in heating gas, therefore generally take the way of three thermal storage heating stove alternations, but also can only provide the temperature hot gas that fluctuation changes between 500 ℃-700 ℃, therefore can only increase the vaporization combustion conversion zone in gas retort remedies this deficiency, final result causes oil-collecting ratio low, problems such as the easy coking of gas retort can't realize complete alternation technology.In addition, Fushun formula thermal storage heating stove adopts checker brick as Xu Re Load body, and thermal capacity is little, causes thermal storage heating stove bulky.Brazil's tubular heater can provide continuously, equilibrium, stable about 700 ℃ hot gas, but this heating furnace have to increase heat exchange area in order to reduce exhaust gas temperature, makes the heat-exchanger rig part of heating furnace extremely huge, consume large quantities of steel, increased the cost of stove.
Summary of the invention
The purpose of this utility model is to provide a kind of can satisfy the distillation process requirement, can be continuously, balanced, stably supply with the circulating mash gas heating furnace of about 700 ℃ hot gas of gas retort, and thermal efficiency height, volume is little, is convenient to operational administrative.This heat-storage tubular gas heating furnace is characterized in that pipe heat exchanger places the central authorities of recuperative heater, and the both sides of heating furnace are the combustion chambers, and the bottom, combustion chamber is provided with regenerator; Burning feeds on regenerator top with cold gas, and the combustion air inlet pipe enters from the bottom, combustion chamber, and four-way change-over valve connects combustion air inlet, air blast and air-introduced machine respectively; Be equipped with the inlet tube and the outlet of circulating mash gas on the pipe heat exchanger.For realizing this purpose, adopted following technology: the one, the regenerative heat exchange technology., as heat carrier exhaust gas temperature is dropped to below 150 ℃ with heat-storing sphere.The heat-storing sphere surface area is big, and the heat transfer intensity height has dwindled the volume and the steel consumption of heating furnace greatly.The 2nd, radiation and heat convection mix use.Because the fix density of radiate heat exchange height can reduce the area of heat-exchanger rig greatly, so arrange radiant tube in the high-temperature region.Low-temperature space still adopts convection bank.The 3rd, gas flows in pipe, and flue gas washes away outside pipe, guarantees the safe operation of stove.
All do not use the gas heating furnace of this technology at present both at home and abroad.It is compared with gas heating furnace both domestic and external, and have following advantage: 1, volume is little, owing to adopted heat-storing sphere as heat carrier, has reduced heat exchange area greatly, has reduced cost.2, thermal efficiency height, exhaust gas temperature is lower than 150 ℃, and the thermal efficiency is higher than 90%.3, the temperature that is heated gas can be adjusted as required, and stable, has changed the situation that formula heating furnace hot gas temperature in Fushun can't be regulated and control.4, can balancedly supply hot gas continuously, help large-scale industrial production, change Fushun formula thermal storage heating stove discontinuous operation, disadvantage that can not continuous heat supply to gas retort.
Description of drawings
The specific embodiment
What accompanying drawing provided is the structure of heat-storage tubular heating furnace.This structure can effectively realize purpose of the present invention.When gas burns heat radiation given the radiant tube be attached to burner hearth sidewall in burner hearth, the flue gas of generation again with tube bank in the circulating mash gas that flows carry out heat exchange, circulating mash gas is heated to 700 ℃ is sent to gas retort.Flue gas exchanges waste heat to heat-storing sphere through being located at the regenerator of stove one side, reduces to 150 ℃ and discharges out of the furnace.Fresh fuel gas enters from the regenerator of opposite side, is preheated to 450 ℃ by the heat carrier of accumulation of heat and enters the burner hearth burning.Per minute switches once by reversal valve.
Claims (3)
1. a heat-storage tubular gas heating furnace is characterized in that pipe heat exchanger places the central authorities of recuperative heater, and the both sides of heating furnace are the combustion chambers, and the bottom, combustion chamber is provided with regenerator; Burning feeds on regenerator top with cold gas, and the combustion air inlet pipe enters from the bottom, combustion chamber, and four-way change-over valve connects combustion air inlet, air blast and air-introduced machine respectively; Be equipped with the inlet tube and the outlet of circulating mash gas on the pipe heat exchanger.
2. heat-storage tubular gas heating furnace according to claim 1 is characterized in that with heat-storing sphere as heat carrier.
3. heat-storage tubular gas heating furnace according to claim 1 is characterized in that gas flows in pipe, flue gas washes away outside pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200100377U CN201443871U (en) | 2009-01-06 | 2009-01-06 | Regenerative tubular gas heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200100377U CN201443871U (en) | 2009-01-06 | 2009-01-06 | Regenerative tubular gas heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443871U true CN201443871U (en) | 2010-04-28 |
Family
ID=42548552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200100377U Expired - Fee Related CN201443871U (en) | 2009-01-06 | 2009-01-06 | Regenerative tubular gas heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778035A (en) * | 2011-05-09 | 2012-11-14 | 郭楚昊 | Process and device for explosive gas heating |
| CN105276985A (en) * | 2015-11-04 | 2016-01-27 | 苏俊兰 | Efficient tube heating furnace |
-
2009
- 2009-01-06 CN CN2009200100377U patent/CN201443871U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778035A (en) * | 2011-05-09 | 2012-11-14 | 郭楚昊 | Process and device for explosive gas heating |
| CN102778035B (en) * | 2011-05-09 | 2014-08-20 | 郭楚昊 | Process and device for explosive gas heating |
| CN105276985A (en) * | 2015-11-04 | 2016-01-27 | 苏俊兰 | Efficient tube 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20120106 |