CN102607310B - Transporting utilizing method of low-temperature excess heat of iron and steel enterprises - Google Patents
Transporting utilizing method of low-temperature excess heat of iron and steel enterprises Download PDFInfo
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- CN102607310B CN102607310B CN201210095570.4A CN201210095570A CN102607310B CN 102607310 B CN102607310 B CN 102607310B CN 201210095570 A CN201210095570 A CN 201210095570A CN 102607310 B CN102607310 B CN 102607310B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 49
- 239000010959 steel Substances 0.000 title claims abstract description 49
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000012782 phase change material Substances 0.000 claims abstract description 56
- 239000012530 fluid Substances 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000011010 flushing procedure Methods 0.000 claims description 20
- 239000003818 cinder Substances 0.000 claims description 17
- 239000010842 industrial wastewater Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 10
- 239000012188 paraffin wax Substances 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 5
- 239000012774 insulation material Substances 0.000 claims description 5
- 239000011707 mineral Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 2
- 238000011084 recovery Methods 0.000 description 23
- 239000002918 waste heat Substances 0.000 description 22
- 239000002893 slag Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 8
- 239000003245 coal Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 150000001924 cycloalkanes Chemical class 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Processing Of Solid Wastes (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a transporting utilizing method of low-temperature excess heat of iron and steel enterprises and belongs to the technical field of excess heat recycling. A heat accumulation system, a transporting system and a heat release system are included. In the heat accumulation system, heat conduction oil enables the excess heat of the iron and steel enterprises to be stored in a phase-change material storage tank through a heat exchanger; in the transporting system, the phase-change material storage tank is transported to a heat user through an automobile; and in the heat release system, the heat conduction oil enables heat stored in phase-change material to be released to the heat user through the heat exchanger, and recycling of the excess heat is finished. The transporting utilizing method of the low-temperature excess heat of the iron and steel enterprises improves recycling rate of the low-temperature excess heat of the iron and steel enterprises and reduces fuel consumption of the heat user and discharge of CO2 and the like.
Description
Technical field
The present invention relates to the low temperature exhaust heat transportation of a kind of iron and steel enterprise and utilize method, especially utilize iron and steel enterprise's low temperature exhaust heat to supply with the low-grade method with the hot user of energy in city, belong to heat recovery technology field.
Technical background
Iron and steel enterprise is energy resource consumption and CO
2discharge rich and influential family, its energy consumption and CO
2discharge accounts for respectively industrial total energy consumption and CO
216% left and right of discharge.In Production Process for Steel Enterprise, produce a large amount of low temperature exhaust heats, comprise hot water, low-grade flue gas and steam etc., these amount of heat are large, grade is low, and recycling good these low temperature exhaust heats is to reduce the energy consumption of iron and steel enterprises and CO
2the effective way of discharge.
UTILIZATION OF VESIDUAL HEAT IN is mainly to reclaim its heat energy by heat exchange means, for liquid waste heat, can be transported to and need the place of waste heat to carry out heat exchange recovery by pipeline, the pipeline of mode can not carry by to(for) the gas waste-heat of the difficult conveyings such as flue gas is carried out waste heat recovery, must use a kind of novel waste heat recovery mode, will after its waste heat recovery, be transported to the user who needs low temperature exhaust heat.Therefore, the system of carrying out UTILIZATION OF VESIDUAL HEAT IN by transport pathway becomes the focus of concern, by consulting related data, finds, the domestic research that utilizes waste heat to reclaim iron and steel enterprise's waste heat does not almost have.
Iron and steel enterprise's low temperature exhaust heat is recycled at present also in the research and development stage, and subject matter is that the rate of recovery is low, can only recovery section low temperature exhaust heat, such as winter heating and preheating etc.; Low and the key technology of system effectiveness does not solve, for example organic working medium low-temperature cogeneration.Solve the rate of recovery and the inefficient problem of recovery system, for reclaiming, iron and steel enterprise's low temperature exhaust heat is significant.
Along with the development of phase-changing energy storage material technology, energy storage technologies more and more obtains people's attention.And these memory technologies are mainly used in heat storage to solar energy or the peak load shifting to commercial power, these methods can only, by the heat of storage for fixed location, lack flexibility, for carry out the domestic few people's research of UTILIZATION OF VESIDUAL HEAT IN by transport pathway.Therefore, by iron and steel enterprise's low temperature heat method of heat exchange, storage and transportation, both the heat of recovery can be transported to and need the hot user of the difference of heat, solve the fixing low problem of the rate of recovery causing due to hot user; Can the low temperature exhaust heat reclaiming be used for, for the lower hot user of heat request, having improved the efficiency of recovery system according to the principle of energy cascade utilization again simultaneously.
Summary of the invention
The object of the invention is the rational recycling by iron and steel enterprise's low temperature exhaust heat, improve the low temperature exhaust heat rate of recovery and recovery system efficiency, exploitation iron and steel enterprise low temperature exhaust heat transportation technology, thereby the method that the low temperature exhaust heat transportation of a kind of iron and steel enterprise is provided, can be widely used in the recovery of iron and steel enterprise's low temperature exhaust heat.
The technical scheme of the method for iron and steel enterprise of the present invention low temperature exhaust heat transportation is: adopt phase-change material to store iron and steel enterprise's waste heat (heat reservoir) by the mode of heat exchange, by vehicle transport, arrive hot user (transportation system), then by the mode of heat exchange, the heat of storage is offered to hot user (heat release system).Concrete technology comprises as follows: (as shown in Figure 3)
A: heat exchanger (as shown in Figure 1) is installed in iron and steel enterprise's flushing cinder pond, is extracted the industrial wastewater in flushing cinder pond, enter heat exchanger by the cycle fluid import 8 of heat exchanger 1, heat is conducted to phase-change material 3, discharge from cycle fluid outlet 5;
B: when extracting industrial wastewater, conduction oil is passed into heat exchanger from the heat conductive oil inlet 6 of heat exchanger 2, heat conducts to conduction oil from phase-change material 3, finally discharges heat exchanger 2 from conduction oil outlet 7;
C: the conduction oil of discharging in step B is passed into the heat conductive oil inlet 6 of phase-change material holding vessel (as shown in Figure 2), heat is conducted to phase-change material, then discharge from phase-change material holding vessel conduction oil outlet 7, recirculation enters heat exchanger; When amount of stored heat reaches phase-change material holding vessel storage capacity, finish heat exchange, by vehicles drive, arrive heat release system;
D: the phase-change material holding vessel vehicle transport that step C is obtained is to heat release system (urban population centralized residence area), conduction oil is passed into the heat exchanger of heat release system end, according to the method for steps A and B, cycle fluid is heated equally, then cycle fluid is passed into hot user, finally the cycle fluid of discharging is continued to pass into the cycle fluid entrance 8 of heat release system end from hot user, form closed circuit.
The temperature of described industrial wastewater is 80～100 ℃.
The phase-change material of described heat exchanger and phase-change material holding vessel adopts paraffin wax, because the waste heat reclaiming belongs to low temperature exhaust heat.
Described conduction oil is synthesis type conduction oil and mineral type conduction oil.
Cycle fluid in described step D is water, conduction oil or organic working medium etc.
Described heat exchanger and phase-change material holding vessel are existing equipment, in order to reduce the loss of heat in heat exchange and transportation, need to all wrap up insulation material to heat exchanger and phase-change material storage tank body 9 outsides and be incubated.
The phase-change material holding vessel that releases heat in described step D adopts haulage vehicle to transport back heat reservoir store heat, in order to enable to measure circulation and uninterrupted, can adopt multiple phase-change material holding vessels and many haulage vehicles.
At hot user side, heat exchanger and circulating pump are installed equally, the heat of phase change material stores is passed to heat-conducting medium-conduction oil, conduction oil enters heat exchanger by circulating pump, by heat exchange, by thermal release, gives hot user, and conduction oil is got back to phase-change material holding vessel and circulated next time.After the thermal release of phase-change material holding vessel storage is complete, stop circulating pump, finish heat exchange, by vehicles drive, go back to iron and steel enterprise's flushing cinder pond.
The advantage that the present invention has compared with the prior art and good effect:
1, by waste heat transportation system, the low temperature exhaust heat of iron and steel enterprise can be transported to the hot user of different location, has improved the rate of recovery 10～15% of iron and steel enterprise's low temperature exhaust heat, has expanded the scope of utilizing of low temperature exhaust heat;
2, overcome low the low-quality recovery system efficiency that can be converted in high-quality energy process, really realized the cascade utilization of the energy, improved the efficiency of recovery system;
3, the method for iron and steel enterprise's low temperature exhaust heat transportation, has realized take iron and steel enterprise's low temperature exhaust heat as thermal source, and the waste heat transportation system that is hot user by heat unit has reduced hot user's fuel consumption and CO
2deng discharge capacity;
4, compared with existing UTILIZATION OF VESIDUAL HEAT IN technology, can reclaim low temperature exhaust heat completely and be used, overcome traditional waste heat recovery mode, all the shortcoming of recovery waste heat; Because waste heat transportation system carries waste heat mode flexible, reduced the investment due to transporting low temperature waste heat tubing simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of heat exchanger of the present invention;
Fig. 2 is the structural representation of phase-change material holding vessel of the present invention;
Fig. 3 is system schematic of the present invention.
In figure, each label is: 1-heat exchanger 1,2-heat exchanger 2,3-phase-change material, 4-heat-insulation layer, the outlet of 5-cycle fluid, 6-heat conductive oil inlet, the outlet of 7-conduction oil, the import of 8-cycle fluid, 9-tank body.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done into a description, but the invention is not restricted to the following stated scope.
Embodiment 1: referring to Fig. 3, certain iron and steel enterprise's using exhaust heat of slag flushing water transportation utilizes the concrete steps of method to comprise as follows:
(1) heat exchanger (as shown in Figure 1) is installed in iron and steel enterprise's flushing cinder pond, extract the industrial wastewater in 80～90 ℃, flushing cinder pond, cycle fluid import 8 by heat exchanger 1 enters heat exchanger, and heat is conducted to the paraffin wax to phase-change material 3(), from cycle fluid outlet 5, discharge;
(2) when extracting industrial wastewater, by conduction oil (synthesis type conduction oil: alkylbenzene type conduction oil,) from the heat conductive oil inlet 6 of heat exchanger 2, passing into heat exchanger, heat conducts to conduction oil from phase-change material 3, finally from conduction oil outlet 7, discharges heat exchanger 2;
(3) conduction oil of discharging in step (2) is passed into the heat conductive oil inlet 6 of phase-change material holding vessel (as shown in Figure 2), heat is conducted to phase-change material, then from conduction oil outlet 7, discharge, recirculation enters heat exchanger; When amount of stored heat reaches phase-change material holding vessel storage capacity, finish heat exchange, by vehicles drive, arrive heat release system; Insulation material is all wrapped up in heat exchanger and phase-change material storage tank body 9 outsides.
(4) phase-change material holding vessel vehicle transport step (3) being obtained is to heat release system (urban population centralized residence area), conduction oil is passed into the heat exchanger of heat release system end, according to the method for step (1) and (2), cycle fluid (water) is heated equally, then cycle fluid is passed into hot user, finally the cycle fluid of discharging is continued to pass into the cycle fluid entrance 8 of heat release system end from hot user, form closed circuit.
6,000,000 tons of certain iron and steel enterprise's annual productions, ton steel slag rate is 0.3 ton of slag/ton steel, the water yield of cooling slag is: 7～8 tons of water/ton slags, the temperature of flushing cinder water is 80～90 ℃, mark coal calorific value 7000 kilocalories/kilogram, mark coal price lattice: 1000 yuan/ton.
Adopt low temperature exhaust heat transportation resources of the present invention, utilize paraffin wax as phase-change material, 100% recovery the waste heat of flushing cinder water, waste heat produces the hot water between 50～60 ℃ for Urban Thermal user, can reduce every year by 10442 tons of mark the consumption of coals, can reduce by 32235 tons of CO simultaneously
2discharge capacity.
Embodiment 2: referring to Fig. 3, certain iron and steel enterprise's using exhaust heat of slag flushing water transportation utilizes the concrete steps of method to comprise as follows:
(1) heat exchanger (as shown in Figure 1) is installed in iron and steel enterprise's flushing cinder pond, extract the industrial wastewater in 80～100 ℃, flushing cinder pond, cycle fluid import 8 by heat exchanger 1 enters heat exchanger, and heat is conducted to the paraffin wax to phase-change material 3(), from cycle fluid outlet 5, discharge;
(2) when extracting industrial wastewater, conduction oil (mineral conduction oil: the mixture of long chain alkane and cycloalkane) is passed into heat exchanger from the heat conductive oil inlet 6 of heat exchanger 2, heat conducts to conduction oil from phase-change material 3, finally from conduction oil outlet 7, discharges heat exchanger 2;
(3) conduction oil of discharging in step (2) is passed into the heat conductive oil inlet 6 of phase-change material holding vessel (as shown in Figure 2), heat is conducted to phase-change material, then from conduction oil outlet 7, discharge, recirculation enters heat exchanger; When amount of stored heat reaches phase-change material holding vessel storage capacity, finish heat exchange, by vehicles drive, arrive heat release system; Insulation material is all wrapped up in heat exchanger and phase-change material storage tank body (9) outside.
(4) phase-change material holding vessel vehicle transport step (3) being obtained is to heat release system (urban population centralized residence area), conduction oil is passed into the heat exchanger of heat release system end, according to the method for step (1) and (2), cycle fluid (mineral conduction oil: the mixture of long chain alkane and cycloalkane) is heated equally, then cycle fluid is passed into hot user, finally the cycle fluid of discharging is continued to pass into the cycle fluid entrance 8 of heat release system end from hot user, form closed circuit.
8,000,000 tons of certain iron and steel enterprise's annual productions, ton steel slag rate is 0.3 ton of slag/ton steel, the water yield of cooling slag is: 7～8 tons of water/ton slags, the temperature of flushing cinder water is 80～90 ℃, mark coal calorific value 7000 kilocalories/kilogram, mark coal price lattice: 1000 yuan/ton.
Adopt low temperature exhaust heat transportation resources of the present invention, utilize paraffin wax as phase-change material, 100% recovery the waste heat of flushing cinder water, waste heat produces the hot water between 50～60 ℃ for Urban Thermal user, can reduce every year by 10842 tons of mark the consumption of coals, can reduce by 32600 tons of CO simultaneously
2discharge capacity.
Embodiment 3: referring to Fig. 3, certain iron and steel enterprise's using exhaust heat of slag flushing water transportation utilizes the concrete steps of method to comprise as follows:
(1) heat exchanger (as shown in Figure 1) is installed in iron and steel enterprise's flushing cinder pond, extract the industrial wastewater in 90～100 ℃, flushing cinder pond, cycle fluid import 8 by heat exchanger 1 enters heat exchanger, and heat is conducted to the paraffin wax to phase-change material 3(), from cycle fluid outlet 5, discharge;
(2) when extracting industrial wastewater, conduction oil (mineral conduction oil: the mixture of long chain alkane and cycloalkane) is passed into heat exchanger from the heat conductive oil inlet 6 of heat exchanger 2, heat conducts to conduction oil from phase-change material 3, finally from conduction oil outlet 7, discharges heat exchanger 2;
(3) conduction oil of discharging in step (2) is passed into the heat conductive oil inlet 6 of phase-change material holding vessel (as shown in Figure 2), heat is conducted to phase-change material, then from conduction oil outlet 7, discharge, recirculation enters heat exchanger; When amount of stored heat reaches phase-change material holding vessel storage capacity, finish heat exchange, by vehicles drive, arrive heat release system; Insulation material is all wrapped up in heat exchanger and phase-change material storage tank body (9) outside.
(4) phase-change material holding vessel vehicle transport step (3) being obtained is to heat release system (urban population centralized residence area), conduction oil is passed into the heat exchanger of heat release system end, according to the method for step (1) and (2), cycle fluid (organic working medium: ethanol) is heated equally, then cycle fluid is passed into hot user, finally the cycle fluid of discharging is continued to pass into the cycle fluid entrance 8 of heat release system end from hot user, form closed circuit.
4,000,000 tons of certain iron and steel enterprise's annual productions, ton steel slag rate is 0.3 ton of slag/ton steel, the water yield of cooling slag is: 7～8 tons of water/ton slags, the temperature of flushing cinder water is 80～90 ℃, mark coal calorific value 7000 kilocalories/kilogram, mark coal price lattice: 1000 yuan/ton.
Adopt low temperature exhaust heat transportation resources of the present invention, utilize paraffin wax as phase-change material, 100% recovery the waste heat of flushing cinder water, waste heat produces the hot water between 50～60 ℃ for Urban Thermal user, can reduce every year by 10089 tons of mark the consumption of coals, can reduce by 32120 tons of CO simultaneously
2discharge capacity.
Claims (6)
1. the transportation of iron and steel enterprise's low temperature exhaust heat utilizes a method, it is characterized in that specifically comprising the steps:
A: heat exchanger is installed in iron and steel enterprise's flushing cinder pond, is extracted the industrial wastewater in flushing cinder pond, enter heat exchanger by the cycle fluid import of heat exchanger, heat is conducted to phase-change material, discharge from cycle fluid outlet;
B: when extracting industrial wastewater, conduction oil is passed into heat exchanger from the heat conductive oil inlet of heat exchanger, heat conducts to conduction oil from phase-change material, finally discharges heat exchanger from conduction oil outlet;
C: the conduction oil of discharging in step B is passed into the heat conductive oil inlet of phase-change material holding vessel, heat is conducted to phase-change material, then discharge from the conduction oil outlet of phase-change material holding vessel, recirculation enters heat exchanger; When amount of stored heat reaches phase-change material holding vessel storage capacity, finish heat exchange, by vehicles drive, arrive heat release system;
D: the phase-change material holding vessel vehicle transport that step C is obtained is to heat release system, conduction oil is passed into the heat exchanger of heat release system end, according to the method for steps A and B, cycle fluid is heated equally, then cycle fluid is passed into hot user, finally the cycle fluid of discharging is continued to pass into the cycle fluid entrance of heat release system end from hot user, form closed circuit.
2. the transportation of iron and steel enterprise according to claim 1 low temperature exhaust heat utilizes method, it is characterized in that: the temperature of described industrial wastewater is 80～100 ℃.
3. the transportation of iron and steel enterprise according to claim 1 low temperature exhaust heat utilizes method, it is characterized in that: the phase-change material of described heat exchanger and phase-change material holding vessel adopts paraffin wax.
4. the transportation of iron and steel enterprise according to claim 1 low temperature exhaust heat utilizes method, it is characterized in that: described conduction oil is synthesis type conduction oil and mineral type conduction oil.
5. the transportation of iron and steel enterprise according to claim 1 low temperature exhaust heat utilizes method, it is characterized in that: the cycle fluid in described step D is water, conduction oil or organic working medium.
6. the transportation of iron and steel enterprise according to claim 1 low temperature exhaust heat utilizes method, it is characterized in that: insulation material is all wrapped up in heat exchanger and phase-change material storage tank body outside.
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|---|---|---|---|
| CN201210095570.4A CN102607310B (en) | 2012-04-01 | 2012-04-01 | Transporting utilizing method of low-temperature excess heat of iron and steel enterprises |
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| CN201210095570.4A CN102607310B (en) | 2012-04-01 | 2012-04-01 | Transporting utilizing method of low-temperature excess heat of iron and steel enterprises |
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| CN103528411B (en) * | 2013-11-04 | 2016-06-22 | 大连交通大学 | A kind of noncontact electrical heating solid-liquid mixing heat-storing device |
| CN104653243B (en) * | 2015-01-07 | 2016-06-22 | 中国科学院过程工程研究所 | Low-grade heat drives low-melting-point metal phase transformation heat accumulating power generating system |
| CN106705187B (en) * | 2016-12-06 | 2019-11-22 | 南京酷朗电子有限公司 | The heating ventilation air-conditioning system of quick transmission & distribution energy |
| CN113007984A (en) * | 2019-12-20 | 2021-06-22 | 常州佳成干燥设备有限公司 | Waste heat recovery device for drying equipment |
| CN113430310A (en) * | 2021-07-02 | 2021-09-24 | 南京品会聚能科技有限公司 | Slag flushing water treatment system and method |
| CN114322043A (en) * | 2021-12-13 | 2022-04-12 | 华能(浙江)能源开发有限公司长兴分公司 | Mobile heat supply management system |
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| US4003786A (en) * | 1975-09-16 | 1977-01-18 | Exxon Research And Engineering Company | Thermal energy storage and utilization system |
| CN1285875C (en) * | 2004-04-23 | 2006-11-22 | 天津大学 | Phase transformation heat accumulation system |
| CN201875892U (en) * | 2010-11-26 | 2011-06-22 | 上海海事大学 | Movable heat supply device utilizing two phase-change materials |
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