CN210036305U - Heat energy storage and release system based on tubular heating furnace - Google Patents
Heat energy storage and release system based on tubular heating furnace Download PDFInfo
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- CN210036305U CN210036305U CN201920157919.XU CN201920157919U CN210036305U CN 210036305 U CN210036305 U CN 210036305U CN 201920157919 U CN201920157919 U CN 201920157919U CN 210036305 U CN210036305 U CN 210036305U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The utility model discloses a heat energy storage and release system based on a tubular heating furnace, which comprises a phase change heat storage material, a heat preservation layer, an energy storage medium circulation unit, an energy storage external transmission pipeline and an energy storage external heat collector; the heat insulation layer is arranged in an energy storage pool dug out of soil, the phase change heat storage material is completely wrapped and covered by the heat insulation layer, and soil is backfilled above the heat insulation layer; the energy storage medium circulation unit is simultaneously connected with the phase change heat storage material and an energy storage external heat collector connected in a flue gas pipeline of the tubular heating furnace, heat energy in the flue gas pipeline is stored in the phase change heat storage material after being subjected to heat exchange with the phase change heat storage material, the energy storage external transmission pipeline is simultaneously connected with the phase change heat storage material, and the heat energy stored in the phase change heat storage material is outwards released through the energy storage external transmission pipeline when needed. The utility model discloses can make tubular heating furnace's used heat concentrate stable storage, reduce device energy consumption and manufacturing cost, reduce the climate change that greenhouse gas discharges and arouse to the at utmost.
Description
Technical Field
The utility model relates to an energy storage system for tubular heating furnace belongs to petrochemical heating tubular heating furnace equipment technical field.
Background
The tubular heating furnace is a technological heating furnace used in petroleum refining, petrochemical industry, chemical fiber industry, coal chemical industry and coal-to-liquid oil, and the heated material flows in the tube and can be gas, liquid and gas-liquid-solid three-phase medium containing solid particles. Moreover, the media are all inflammable and explosive substances with great danger
The energy consumption of the tube furnace is a considerable proportion of the plant, up to 90%. The heat efficiency is an important index of the advancement of the tubular heating furnace, and is influenced by a processing technology and a cold source medium, the heating furnace is generally provided with an air preheater, the exhaust gas temperature is reduced through the heat exchange between air and the exhaust gas, and the heat efficiency is improved. Due to the influence of sulfur-containing fuel, sulfur-containing flue gas generates sulfuric acid liquid with water vapor in the flue gas at low temperature, so that the air preheater is corroded, the exhaust gas temperature of a heating furnace is 140 ℃ in general, and the air preheater is corroded rapidly due to excessively low exhaust gas temperature, so that the stable operation of equipment and a system is damaged.
Because the waste heat of the heating furnace belongs to low-grade waste heat, the requirement of industrial high-quality heat sources cannot be met under the existing process flow. Waste heat recovery can only be used in real time at present, and the use of waste heat in seasonal heating and warming is limited.
A dictionaryModel ten million tons oil refinery, the exhaust emission of heating furnace is about 70x104Nm3The waste heat of a large amount of flue gas is not utilized, so that the waste of energy is caused, and the environment is polluted. The waste heat is recovered by a processing technology, a heat exchange process, no available cold source and other factors, and even if a separate method is adopted for recovery, the utilization cost is too high, the use scale and range are greatly limited, and the method cannot be widely applied to the industry. The development of a stable energy storage system, which allows the waste heat to be stored in a centralized manner, and the diversified utilization of the waste heat is highly desirable.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a heat energy storage and release system based on tubular heating furnace can make tubular heating furnace's used heat concentrate stable storage, can stabilize outside output when needing heat energy, reduces device energy consumption and manufacturing cost, reduces the climate change that greenhouse gas emission arouses to the at utmost.
A heat energy storage and release system based on a tubular heating furnace comprises a phase change heat storage material, a heat insulation layer, an energy storage medium circulation unit, an energy storage external transmission pipeline and an energy storage external heat collector;
the heat insulation layer is arranged in an energy storage pool dug out of soil, the phase change heat storage material is completely wrapped and covered by the heat insulation layer, and soil is backfilled above the heat insulation layer; the energy storage medium circulation unit is simultaneously connected with the phase change heat storage material and an energy storage external heat collector connected in a flue gas pipeline of the tubular heating furnace, heat energy in the flue gas pipeline is stored in the phase change heat storage material after being subjected to heat exchange with the phase change heat storage material, the energy storage external transmission pipeline is simultaneously connected with the phase change heat storage material, and the heat energy stored in the phase change heat storage material is outwards released through the energy storage external transmission pipeline when needed.
Further, the circulating medium in the energy storage medium circulating unit is liquid.
Furthermore, the phase-change heat storage material adopts a porous nano-honeycomb heat accumulator to directly contact with a heat exchange medium for heat exchange, and the heat storage material stores heat through the change of the temperature of the heat storage material.
Further, the porous nano-honeycomb heat accumulator is formed by sintering alumina and titanium dioxide materials.
Furthermore, the heat-insulating layer is formed by pouring high-temperature cement mixed vermiculite or rock, the outer layer is built by heat-insulating bricks, and the outer surface of each heat-insulating brick is coated with anticorrosive paint.
Has the advantages that:
1. the utility model discloses utilize energy storage medium circulation unit to send heat transfer medium to the outer calorimeter of energy storage and waste heat flue gas and carry out the heat transfer, the medium after the heat transfer is sent into underground energy storage pond and phase change heat storage material heat transfer cooling back, get into the outer calorimeter of energy storage again and carry out cycle work, because heat transfer medium and waste heat flue gas are gas-liquid heat transfer, promote more than 200% than former gas (air and flue gas) heat transfer efficiency, use the oil refinery of a 1000 ten thousand tons/year scale as an example, heating furnace flue gas temperature is reduced to 50 ℃ by conventional 140 ℃, the flue gas volume is 70x104Nm3And the heat value of the recovered heat is reduced to about 30 megawatts by the heat value of the natural gas, the natural gas can be saved by 940 tons every year, and the economic value is obvious.
2. The utility model discloses the accessible sets up the energy storage pond of equidimension not, solves the flue gas throughput of different scales, and the nimble convenient industrial factory who is suitable for different scales of system design, energy storage system set up underground, can save a large amount of ground space futilely, practice thrift land use cost.
3. The utility model discloses an excavate out the energy storage pond in soil, deep soil and rock stratum also have certain heat preservation effect. Compared with a heat accumulator arranged on the ground surface, the heat accumulator buried underground can utilize the existing natural soil and rock stratum to carry out outer surface landfill, can play a certain heat preservation role to a certain extent, and uses the landfill heat preservation form of the natural soil and the rock stratum under the same heat preservation condition, so that the heat preservation material is saved, the environment is protected, and social resources are protected.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The system comprises a phase change heat storage material 1, a heat insulation layer 2, soil 3, an energy storage medium circulation unit 4, an energy storage external transmission pipeline 5, an energy storage external heat collector 6, a radiation chamber 7, a convection chamber 8, a chimney 9, a flue gas pipeline 10, an air blower 11, a flue gas blower 12 and a combustion unit 13.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of examples.
As shown in the attached drawing 1, the utility model provides a heat energy storage and release system based on tubular heating furnace, heat energy storage and release system link to each other with flue gas pipeline 10 in the tubular heating furnace, realize the storage to the heat energy in the tubular heating furnace flue gas through the heat exchange.
In the tubular heating furnace, a combustion unit 13 heats equipment in a radiation chamber 7, high-temperature flue gas generated by fuel flows into a chimney 9 from a convection chamber 8 above the radiation chamber, the high-temperature flue gas is led out from the chimney into an air preheater through a flue gas pipeline 10, external air pumped in by an air blower enters the radiation chamber 7 to participate in combustion after exchanging heat with the high-temperature flue gas in the air preheater, the high-temperature flue gas after exchanging heat is sent into an energy storage external heat collector 6 in a heat energy storage and release system for heat exchange through a flue gas blower 12, and waste flue gas after heat exchange is introduced into the chimney 9 for evacuation through the flue gas pipeline 10.
The heat energy storage and release system comprises a phase change heat storage material 1, a heat insulation layer 2, an energy storage medium circulation unit 4, an energy storage external transmission pipeline 5 and an energy storage external heat collector 6;
digging an energy storage pool for storing a phase change heat storage material 1 and a heat insulation layer 2 on the ground, placing the heat insulation layer 2 in the energy storage pool dug in soil 3, completely wrapping and covering the phase change heat storage material 1 by the heat insulation layer 2, and backfilling soil above the heat insulation layer 2; the energy storage medium circulation unit 4 is simultaneously connected with the phase change heat storage material 1 and an energy storage external heat collector 6 connected in a smoke pipeline of the tubular heating furnace, heat exchange between high-temperature smoke and the phase change heat storage material 1 is realized through a circulation medium, the heat energy of the high-temperature smoke in the smoke pipeline is stored in the phase change heat storage material after being subjected to heat exchange with the phase change heat storage material through the circulation medium, the energy storage external transmission pipeline 5 is simultaneously connected with the phase change heat storage material 1, the heat energy stored in the phase change heat storage material 1 is outwards output through the energy storage external transmission pipeline 5 when needed, and the heat energy is released and utilized.
The circulating medium in the energy storage medium circulating unit 4 is liquid.
The phase-change heat storage material 1 adopts a porous nano-honeycomb heat accumulator to directly contact with a heat exchange medium for heat exchange, and the heat storage material stores heat through the change of the temperature of the heat storage material; the porous nano honeycomb heat accumulator is formed by sintering alumina and titanium dioxide materials.
The heat-insulating layer 2 is formed by pouring high-temperature cement mixed vermiculite or rock, the outer layer is built by heat-insulating bricks, and the outer surfaces of the heat-insulating bricks are coated with anticorrosive coatings.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A heat energy storage and release system based on a tubular heating furnace is characterized by comprising a phase change heat storage material, a heat insulation layer, an energy storage medium circulation unit, an energy storage external transmission pipeline and an energy storage external heat collector;
the heat insulation layer is arranged in an energy storage pool dug out of soil, the phase change heat storage material is completely wrapped and covered by the heat insulation layer, and soil is backfilled above the heat insulation layer; the energy storage medium circulation unit is simultaneously connected with the phase change heat storage material and an energy storage external heat collector connected in a flue gas pipeline of the tubular heating furnace, heat energy in the flue gas pipeline is stored in the phase change heat storage material after being subjected to heat exchange with the phase change heat storage material, the energy storage external transmission pipeline is simultaneously connected with the phase change heat storage material, and the heat energy stored in the phase change heat storage material is outwards released through the energy storage external transmission pipeline when needed.
2. The tubular furnace-based thermal energy storage and release system of claim 1, wherein the circulating medium in the energy storage medium circulating unit is a liquid.
3. The tubular furnace-based thermal energy storage and release system of claim 2, wherein the phase-change thermal storage material exchanges heat by direct contact of the porous nano-honeycomb thermal storage body with the heat exchange medium, and the thermal storage material stores heat by a change in its own temperature.
4. The tubular furnace-based thermal energy storage and release system of claim 3, wherein the porous nano-honeycomb thermal mass is sintered from alumina and titania materials.
5. The tubular furnace-based thermal energy storage and release system of claim 4, wherein the insulation layer is formed by pouring high temperature cement mixed with vermiculite or rock, the outer layer is built by insulation bricks, and the outer surface of the insulation bricks is coated with anticorrosive paint.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920157919.XU CN210036305U (en) | 2019-01-29 | 2019-01-29 | Heat energy storage and release system based on tubular heating furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920157919.XU CN210036305U (en) | 2019-01-29 | 2019-01-29 | Heat energy storage and release system based on tubular heating furnace |
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| CN210036305U true CN210036305U (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780877A (en) * | 2019-01-29 | 2019-05-21 | 北京拓首能源科技股份有限公司 | A kind of thermal energy storage based on tubular heater and release system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780877A (en) * | 2019-01-29 | 2019-05-21 | 北京拓首能源科技股份有限公司 | A kind of thermal energy storage based on tubular heater and release system |
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