CN207455627U - Multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver - Google Patents
Multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver Download PDFInfo
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- CN207455627U CN207455627U CN201721319367.5U CN201721319367U CN207455627U CN 207455627 U CN207455627 U CN 207455627U CN 201721319367 U CN201721319367 U CN 201721319367U CN 207455627 U CN207455627 U CN 207455627U
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- heat storage
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- burner
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- 230000008859 change Effects 0.000 title claims abstract description 38
- 238000005338 heat storage Methods 0.000 claims abstract description 120
- 239000012782 phase change material Substances 0.000 claims abstract description 43
- 238000002485 combustion reaction Methods 0.000 claims abstract description 41
- 230000008676 import Effects 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 230000001172 regenerating effect Effects 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 27
- 238000003860 storage Methods 0.000 claims description 17
- 238000009825 accumulation Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000003546 flue gas Substances 0.000 claims description 5
- 239000003517 fume Substances 0.000 abstract description 5
- 230000007704 transition Effects 0.000 description 24
- 239000000463 material Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 13
- 230000035508 accumulation Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 239000003921 oil Substances 0.000 description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000004513 sizing Methods 0.000 description 8
- 239000002918 waste heat Substances 0.000 description 7
- 239000000567 combustion gas Substances 0.000 description 6
- 239000011232 storage material Substances 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Inorganic materials [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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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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- Air Supply (AREA)
Abstract
A kind of multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver of the utility model, described device include：Regenerative Combustion System and surplus heat treatment system, Regenerative Combustion System includes the first reversal valve, heat storage, burner and combustion chamber, first reversal valve connects the first import and offgas outlet respectively, and any switching laws between the first import and the offgas outlet, the heat storage is connected with the first reversal valve, burner is connected with heat storage, and combustion chamber is connected with burner；Surplus heat treatment system includes the second reversal valve, current divider, heat storage and interflow device, the second reversal valve and connects the second import, and the second reversal valve is connected with current divider, and one end of heat storage is connected with current divider, and the other end is connected with interflow device.The device can efficiently use fume afterheat, improve the stability of burner flame.The multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver is simple in structure simultaneously, easily transforms, and related phase-change material can be replaced according to different operating modes.
Description
Technical field
The utility model belongs to combustion energy saving technical field more particularly to a kind of multipurpose multi-level phase change heat-accumulating type high-temperature is empty
Gas combustion energy saving device.
Background technology
In recent years, as national governments are to the pay attention to day by day of efforts at environmental protection, all risen in worldwide pollution administration,
The movement of environmental protection.New green technology and product continues to bring out, while is also constantly be generated new problem.Coal dust firing exists
Critical role and the always key points and difficulties of pollution administration are accounted in disposal of pollutants.
How boiler thermal efficiency is improved, it is energy saving, soot emissions are reduced, are effective solution China's energy and environmental problem
Important step.And in this link, it is key point to improve efficiency of combustion.To solve the above problems, using third generation heat accumulating type
Combustion technology is undoubtedly a selection well.
Regenerative combustion technology is the combustion technology of latest generation, is third generation combustion technology.For the first generation and second
For the low situation of the burner hearth heat utilization efficiency of combustion technology, third generation heat accumulating type high temperature air combustion technology is various anti-with that can improve
The advantages of answering the heat utilization efficiency of device and reaction temperature, the quality and grade of reduction fuel, is advantageously implemented low oxygen and low nitrogen burning, together
When can reduce the generation of atmospheric haze.The burner hearth heat utilization efficiency of third generation regenerative combustion technology is up to 86%, systematic heat utilization
Rate is up to more than 94%.
The key of third generation regenerative combustion technology is the utilization of heat storage.The heat storage of existing regenerative combustion technology
It is with materials such as refractory brick, these heat-storing materials are to store heat by material sensible heat.Since sensible heat accumulation of heat has energy
The shortcomings that density is small, range of temperature is big so that third generation regenerative combustion technology commutates frequently there are reversal valve, burner combustion
Burn the shortcomings that unstable.
The content of the invention
To solve the above-mentioned problems, the utility model provides a kind of multipurpose multi-level phase change heat accumulating type high-temperature air burning
Energy saver, described device include：Regenerative Combustion System and surplus heat treatment system,
The Regenerative Combustion System includes the first reversal valve, heat storage, burner and combustion chamber, and first reversal valve connects
Connect the first import and offgas outlet, and any switching laws between first import and the offgas outlet, by described first into
Mouth flows into normal temperature air, and the heat storage is connected with first reversal valve, and the burner is connected with the heat storage, the combustion
Room is burnt to be connected with the burner；The surplus heat treatment system includes the second reversal valve, current divider, heat storage and interflow device, institute
It states the second reversal valve and connects the second import, normal temperature air or normal-temperature water, second reversal valve are flowed by second import
It is connected with the current divider, one end of the heat storage is connected with the current divider, and the other end is connected with the interflow device.
Further, the heat storage includes the first heat storage and the second heat storage, and first heat storage passes through described
First reversal valve is connected with first import or the offgas outlet；Second heat storage by first reversal valve with
The offgas outlet or first import connection.
Further, the burner includes the first burner and the second burner, first burner and first heat storage
Connection；Second burner is connected with second heat storage；First burner and second burner are connected to oil
Air cock.
Further, the current divider includes the first current divider and the second current divider, first current divider and described the
One heat storage connects；Second current divider is connected with second heat storage.
Preferably, the heat storage is multi-level phase change heat storage.
Further, the multi-level phase change heat storage includes multiple thermal storage units, and the thermal storage unit includes high-temperature heat accumulation
Unit, medium temperature regenerator unit, low-temperature heat accumulating unit.
Preferably, the high-temperature heat accumulation unit is equipped with high temperature phase change material (pcm), and the medium temperature regenerator unit is equipped with medium temperature phase transformation
Material, the low-temperature heat accumulating unit are equipped with low-temperature phase-change material, the high-temperature heat accumulation unit, medium temperature regenerator unit and Low Temperature Storage
Hot cell is arranged in order from top to bottom in the multi-level phase change heat storage according to along flow of flue gas direction, temperature sequence.
Further, the thermal storage unit is internally provided with heat exchange pipeline.
Further, one end of the heat exchange pipeline is connected with the current divider, and the other end is connected with the interflow device.
Further, it is provided with the first air switch between first current divider and second reversal valve；Described second
The second air switch is provided between current divider and second reversal valve.
A kind of the advantages of multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver of the utility model, is：
1. the device of the utility model is a kind of more efficient regenerative combustion system using fume afterheat.
2. phase-transition heat-storage material can be replaced according to actual conditions using multistage latent-heat storage body in the device of the utility model
Material, temperature control is more flexible, and pre-heated gas temperature is more steady.
3. the phase-change material that heat storage uses in the utility model is cheap for fuse salt solid-liquid sizing phase-change material,
It is at low cost.
4. the phase-change material storage density in the multistage latent-heat storage body used in the utility model is big, the heat accumulation time is long,
Reversal valve need not frequently commutate.
5. the phase-change material in the utility model has the characteristics that phase transition temperature is constant, it is ensured that the temperature of preheated air
It is relative constant in a longer period of time, so that the flame of burner is more steady.
6. extra waste heat can be used for heating air or water in the utility model, for the needs of daily life.
7. heat storage material in the utility model by internal pipeline and water air indirect heat exchange, heat storage material and
Combustion air direct heat transfer, it is dual improve burning after flue gas organic efficiency.
It is easy to process and assemble 8. the device convenient for converging/diverging designed in the utility model.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver.
Fig. 2 is the structure diagram of the utility model heat storage.
Fig. 3 is the structure diagram of the utility model multipurpose multi-level phase change heat storage.
Fig. 4 is the structure diagram of shunting in the utility model/interflow device.
Fig. 5 is the schematic diagram of multi-stage diffluence in the utility model/interflow device connection.
The first imports of 1-, the first reversal valves of 2-, the first heat storages of 3-, 4- oil and gas switch, the first burners of 5-, 6- combustion chambers,
The second burners of 7-, the second heat storages of 8-, 9- offgas outlets, the second imports of 10-, the second reversal valves of 11-, the first air switches of 12-,
The first current dividers of 13-, the second air switches of 14-, the second current dividers of 15-, 16- converging valves, 17- heat exchange pipelines, 18- high-temperature heat accumulations
Unit, 19- medium temperature regenerators unit, 20- low-temperature heat accumulating units.
Specific embodiment
Below with reference to attached drawing, to the multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver of the utility model
It is described further.
The multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver of the utility model according to figure 1 shows
It is intended to, the device of the utility model includes：Regenerative Combustion System and surplus heat treatment system.The Regenerative Combustion System includes first
Reversal valve 2, heat storage, burner and combustion chamber 6, first reversal valve 2 connect the first import 1 and offgas outlet 9, and in institute
Any switching laws between the first import 1 and the offgas outlet 9 are stated, normal temperature air, the heat storage are flowed by first import 1
It is connected with first reversal valve 2, the burner is connected with the heat storage, and the combustion chamber 6 is connected with the burner；It is described
Surplus heat treatment system includes the second reversal valve 11, current divider, heat storage, interflow device and converging valve 16, second reversal valve
11 the second imports 10 of connection, normal temperature air or normal-temperature water, second reversal valve 11 and institute are flowed by second import 10
Current divider connection is stated, one end of the heat storage is connected with the current divider, and the other end is connected with the interflow device.The interflow
Valve 16 is mounted in the valve on the device total pipeline of interflow, and air outlet slit or water out are additionally provided on the converging valve 16, empty
Gas exports and water out can be same outlet.
Embodiment according to the present utility model, the heat storage include the first heat storage 3 and the second heat storage 8, and described the
One heat storage 3 is connected by first reversal valve 2 with first import 1 or the offgas outlet 9；Second heat storage
8 are connected by first reversal valve 2 with the offgas outlet 9 or first air intlet 1.
Embodiment according to the present utility model, the burner include the first burner 5 and the second burner 7, first burner 5
It is connected with first heat storage 3；Second burner 7 is connected with second heat storage 8；First burner 5 and described
Second burner 7 is connected to oil and gas switch 4.
Embodiment according to the present utility model, the current divider includes the first current divider 13 and the second current divider 15, described
First current divider 13 is connected with first heat storage 3；Second current divider 15 is connected with second heat storage 8.
Embodiment according to the present utility model is provided with first between first current divider 13 and second reversal valve 11
Air switch 12；The second air switch 14 is provided between second current divider 15 and second reversal valve 11.
The number of the heat storage in the utility model is multiple, i.e. 3 multiple carry out levels arranged side by side of the first heat storage are set
It puts, the second heat storage 8 is multiple side by side to be horizontally disposed with.
According to the structure diagram of the heat storage of the utility model shown in Fig. 2, the heat storage is multi-level phase change accumulation of heat
Body.The heat storage include multiple thermal storage units, the thermal storage unit include high-temperature heat accumulation unit 18, medium temperature regenerator unit 19,
Low-temperature heat accumulating unit 20.The high-temperature heat accumulation unit 18 is equipped with high temperature phase change material (pcm), and the medium temperature regenerator unit 19 is equipped with medium temperature
Phase-change material, the low-temperature heat accumulating unit 20 are equipped with low-temperature phase-change material, the high-temperature heat accumulation unit 18, medium temperature regenerator unit 19
And low-temperature heat accumulating unit 20 is arranged in order in the heat storage according to along flow of flue gas direction, temperature sequence.Work as storage
It is stored in hot body phase-change material after having heat, there are many sizing phase-change material in heat storage, phase-change material is according to phase transition temperature from height
It is arranged in order to low, since traditional phase-change material is the low inorganic salt materials of thermal conductivity factor, each row phase-change material carries out
It is staggered to improve the heat transfer effect of heat storage.
Embodiment according to the present utility model, the thermal storage unit are internally provided with heat exchange pipeline 17.The heat exchange pipeline
17 one end is connected with the current divider, and the other end is connected with the interflow device.
For Fig. 2, air or water enter the shunting of level-one current divider and two level current divider point by the second import 10
It is entered after stream in thermal storage unit.It is heated up again by the heat exchange of heat exchange pipeline 17 and phase-change material.Flow through different phase-change materials
Air or water after heating pass through converging valve 16 behind the two level interflow device interflow in thermal storage unit and level-one interflow device interflow
On air outlet slit or water out outflow.
According to the structure diagram of the utility model multipurpose multi-level phase change heat storage shown in Fig. 3, compared with Fig. 2
Speech, respectively adds that three-level current divider carries out shunting and three-level interflow device is collaborated in Fig. 3, and by the storage of the integral type of Fig. 2
Hot cell has been divided into the modular separate unit of tandem, and the thermal storage unit of different phase-change materials is in an individual separate unit
In, be conducive to the maintenance management of heat exchanger.
According to the structure diagram of converging/diverging device in the utility model shown in Fig. 4, shown converging/diverging device bag
Main flow conduit, the shunting cavity at middle part and the shunt conduit of right side setting that left side is set are included.
When this structure as current divider in use, mainstream enters current divider by main flow conduit, then by shunting cavity
Be further separated into shunt conduit.
When this structure is as interflow device, each shunting fluid is entered by shunt conduit in shunting cavity, then by dividing
The interflow of stream cavity enters main flow conduit.
The schematic diagram of multi-stage diffluence/interflow device connection, shunting/interflow at the same level in the utility model according to Fig. 5
Device be parallel way connection, it is not at the same level between shunting/interflow device be series system connection.
The purpose of this utility model is that propose a kind of multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver,
The device can efficiently use fume afterheat, improve the stability of burner flame.The heat-exchanger rig is simple in structure simultaneously, easily changes
It makes, related phase-change material can be replaced according to different operating modes.Since phase-change material just has, storage density is big, phase transition temperature is permanent
Fixed, the advantages that phase transformation volume change is small so that the heat-accumulating burner solves air themperature of the gas commutation frequently, after preheating and becomes
Change scope greatly caused burner flame combustion instability the problem of.Modularized design is carried out to regenerative chamber simultaneously, facilitates different works
It is replaced when under condition using different phase-change material demands.
A kind of heat-accumulation combustion system of the multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver of the utility model
The operational process of system is：Normal temperature air enters the first reversal valve 2 by the first import 1, at this point, first reversal valve 2 presses Fig. 1
Middle solid line commutates.Enter multistage first heat storage, 3 gap in right side after normal temperature air, at this time multistage first heat storage 3
Being stored in latent heat storage material has heat, and gas at normal temperature by heating after first heat storage of multistage 3 by entering the first burner 5.This
When, the oil and gas switch 4 positioned at right side is open-minded, and the oil and gas import 4 positioned at left side is closed, and fuel oil or combustion gas are then opened by right side oil gas
It closes 4 to enter in the first burner 5 of right side, mixes with heated gas and burn in combustion chamber 6.Gas after burning then passes through
The second burner of left side 7 enters in multistage second heat storage 8 in left side.At this point, fume afterheat is stored in multistage second accumulation of heat in left side
In body 8.Tail gas after being cooled down enters after being come out from multistage second heat storage 8 in the first reversal valve 2, is discharged through offgas outlet 9.
Until in the first heat storage 3 of multistage of right side after the heat release of latent heat heat accumulating, the reversal valve 2 is then such as
It commutates in Fig. 1 shown in dotted line, at this point, normal temperature air is entered by the first import 1 in the first reversal valve 2, afterwards into a left side
In the second heat storage 8 of multistage of side, second heat storage of multistage 8 has stored heat at this time, and normal temperature air is then in the multistage the
Two heat storages 8 enter after being preheated in the second burner of left side 7.At this point, left side oil and gas switch 4 is open-minded, fuel oil or combustion gas then pass through
Left side oil and gas switch 4 enters in the second burner 7 of left side, mixes with heated gas and burns in combustion chamber 6.After burning
Gas is then entered by the first burner of right side 5 in multistage first heat storage 3 in right side.At this point, waste heat from tail gas be stored in right side it is more
In the first heat storage 3 of grade, the tail gas after being cooled down enters after being come out from multistage first heat storage 3 in the first reversal valve 2, through tail gas
9 discharge of outlet.Reciprocation cycle uses as stated above.
Embodiment according to the present utility model by controlling the oil and gas switch 4 of the left and right sides, can control correspondingly accumulation of heat
The working condition of body.The first heretofore described heat storage 3 and the second heat storage 8 can also be to entering multiple combustion chambers 6
Normal temperature air is preheated.
A kind of Heat Treatment system of the multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver of the utility model
The operational process of system is：Fume afterheat first pass through waste heat routinely using process store, the high-temperature flue gas to burn in combustion chamber 6 into
Enter into the second heat storage 8 and exchange heat, discharged after heating latent heat storage material by offgas outlet 9.By long-time heating
Afterwards, the temperature of heat storage raises in the second heat storage 8, and normal temperature air passes through the second reversal valve 11 by the second import 10 at this time,
Second reversal valve 11 commutates by solid line in figure, afterwards into 3 inside middle pipeline of the first heat storage of right side, room temperature sky
Gas after phase-change material heat exchange heating from the first heat storage of right side 3 with coming out, from the air outlet slit of converging valve 16 after collaborating device
Outflow.At this point, the normal temperature air after heating can be used for industry or daily life.
Until in the first heat storage of right side 3 after the heat release of latent heat heat accumulating, the second reversal valve is then as in figure
It commutates shown in dotted line, at this point, normal temperature air enters the second reversal valve 11 by the second import 10, afterwards into left side second
8 heat storage inside middle pipeline of heat storage, air after phase-change material heat exchange heating from the second heat storage of left side 8 with coming out, warp
It is flowed out after crossing interflow device from the air outlet slit of converging valve 16.At this point, the air after heating can be used for industry or daily life, such as
This reciprocation cycle.
It should be noted that when the utility model Heat Treatment, when passing through from the air in the second import 10
When two reversal valves 11 are entered in first heat storage 3 on right side, first air switch 12 is opened, second air switch
14 close；When in the second heat storage 8 for entering left side by the second reversal valve 11 from the normal temperature air in the second import 10,
First air switch 12 is closed, and second air switch 14 is opened.Certain above-mentioned normal temperature air can replace as needed
It is changed to other fluids, such as normal-temperature water etc..
High temperature phase change material (pcm) in the utility model is the sizing solid-liquid phase-change material that phase transition temperature is 600-900 DEG C.Example
Such as：61Na2SO4- 39MgO, phase transition temperature are 884 DEG C；62Na2SO4-38SiO2, phase transition temperature is 858 DEG C；54LiF-46MgO,
Phase transition temperature is 849 DEG C；24Na2CO3-26BaCO3- 50MgO, phase transition temperature are 686 DEG C；54MgCl2-48SiO2, phase transition temperature
For 714 DEG C；45NaF-15MgF-40MgO, phase transition temperature are 832 DEG C；40LiF-20MgF2- 40MgO, phase transition temperature are 746 DEG C.
Medium temperature phase-change material in the utility model is the sizing solid-liquid phase-change material of 300-600 DEG C of phase transition temperature.Example
Such as：53Li2SO4- 47MgO, phase transition temperature are 577 DEG C；63KOH-37SiO2, phase transition temperature is 400 DEG C；33.6Na2CO3-
26.4Li2CO3- 40MgO, phase transition temperature are 496 DEG C；
33MgCl2- 12.24KCl-11.76NaCl-40MgO, phase transition temperature are 380 DEG C；
18.15NaCl-13.2KCl-23.65LiCl-45MgO, phase transition temperature are 346 DEG C；
24.44BaCl2-13.2KCl-15.95CaCl2- 48MgO, phase transition temperature are 551 DEG C；MgCl2- NaCl, phase alternating temperature
It spends for 435 DEG C.
Low-temperature phase-change material in the utility model is the sizing solid-liquid phase-change material of 100-300 DEG C of phase transition temperature.Example
Such as：41.8KCl-19.2ZnCl2- 40MgO, phase transition temperature are 235 DEG C；
29NaNO3-29KNO3- 42MgO, phase transition temperature are 220 DEG C；40LiNO3-60 diatomite, phase transition temperature are 250 DEG C；
55ZnCl-45MgO, phase transition temperature are 280 DEG C；52AlCl3- 48MgO, phase transition temperature are 190 DEG C.
Since sizing phase-change material makes simply, size can be made according to actual conditions.
Hereinafter, the behaviour in service of corresponding phase-change material under different waste heat supply temperatures will be illustrated by two embodiments.
Embodiment one
1. high-temperature shaping phase-change material is 24Na used by the present embodiment2CO3-26BaCO3- 50MgO, medium temperature sizing phase
Change material is 33.6Na2CO3-26.4Li2CO3- 40MgO, low-temperature shaped phase-change material are 29NaNO3-29KNO3-42MgO。
2. it is fired by combustion gas (methane) and by the air that the first heat storage 3 preheats into the first burner 5 and in combustion chamber 6
It burns.
3. for the tail gas after burning into the second heat storage 8, waste heat is stored into the phase of the second heat storage 8 with heat accumulating heat exchange
Become in material.
4. when the exhaust temperature come out from the second heat storage 8 is higher than 200 DEG C, change the first reversal valve 2, open simultaneously the
Two burners 7；The phase-change material in normal temperature air and the second heat storage 8 carries out heat exchange heating at this time, is burning with combustion gas (methane)
It burns in room 6；
5. the tail gas after burning is stored into the phase transformation material of the first heat storage 3 into the first heat storage 3 with heat accumulating heat exchange
In material.
6. when the exhaust temperature come out from the first heat storage 3 is higher than 200 DEG C, change the first reversal valve 2.
Reciprocating operation as stated above.
Embodiment two
1. used by the present embodiment high-temperature shaping phase-change material be 45NaF-15MgF-40MgO, medium temperature sizing phase transformation material
Expect for 33MgCl2- 12.24KCl-11.76NaCl-40MgO, low-temperature shaped phase-change material are 52AlCl3-48MgO。
2. it is fired by combustion gas (methane) and by the air that the first heat storage 3 preheats into the first burner 5 and in combustion chamber 6
It burns.
3. for the tail gas after burning into the second heat storage 8, waste heat is stored into the phase of the second heat storage 8 with heat accumulating heat exchange
Become in material.
4. when the exhaust temperature come out from the second heat storage 8 is higher than 150 DEG C, change the first reversal valve 2, open simultaneously the
Two burners 7；The phase-change material in normal temperature air and the second heat storage 8 carries out heat exchange heating at this time, is burning with combustion gas (methane)
It burns in room 6；
5. the tail gas after burning is stored into the phase transformation material of the first heat storage 3 into the first heat storage 3 with heat accumulating heat exchange
In material.
6. when the exhaust temperature come out from the first heat storage 3 is higher than 150 DEG C, change the first reversal valve 2.
Reciprocating operation as stated above.
The embodiment one and embodiment two provided in the utility model, employs different phase-change materials and carries out heat exchange storage
Heat, and then reflected for different waste heat supply temperatures, it is necessary to which applying working condition could be met using different phase-change materials.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be
Mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can be two
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features contact directly or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be fisrt feature directly over second feature or oblique upper or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
It is fisrt feature immediately below second feature or obliquely downward or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It is combined in an appropriate manner in a or multiple embodiments or example.In addition, without conflicting with each other, the technology of this field
Different embodiments described in this specification or example and different embodiments or exemplary feature can be combined by personnel
And combination.
Claims (10)
1. a kind of multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver, which is characterized in that described device includes：It stores
Hot combustion system and surplus heat treatment system,
The Regenerative Combustion System includes the first reversal valve, heat storage, burner and combustion chamber, and first reversal valve connects respectively
Connect the first import and offgas outlet, and any switching laws between first import and the offgas outlet, by described first into
Mouth flows into normal temperature air, and the heat storage is connected with first reversal valve, and the burner is connected with the heat storage, the combustion
Room is burnt to be connected with the burner；
The surplus heat treatment system includes the second reversal valve, current divider, heat storage and interflow device, the second reversal valve connection
Second import flows into normal temperature air by second import or normal-temperature water, second reversal valve is connected with the current divider,
One end of the heat storage is connected with the current divider, and the other end is connected with the interflow device.
2. multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver according to claim 1, which is characterized in that
The heat storage includes the first heat storage and the second heat storage,
First heat storage is connected by first reversal valve with first import or the offgas outlet；
Second heat storage is connected by first reversal valve with the offgas outlet or first import.
3. multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver according to claim 2, which is characterized in that
The burner includes the first burner and the second burner,
First burner is connected with first heat storage；
Second burner is connected with second heat storage；
First burner and second burner are connected to oil and gas switch.
4. multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver according to claim 2, which is characterized in that
The current divider includes the first current divider and the second current divider,
First current divider is connected with first heat storage；
Second current divider is connected with second heat storage.
5. multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver according to claim 2, which is characterized in that
The heat storage is multi-level phase change heat storage.
6. multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver according to claim 5, which is characterized in that
The multi-level phase change heat storage includes multiple thermal storage units,
The thermal storage unit includes high-temperature heat accumulation unit, medium temperature regenerator unit, low-temperature heat accumulating unit.
7. multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver according to claim 6, which is characterized in that
The high-temperature heat accumulation unit is equipped with high temperature phase change material (pcm),
The medium temperature regenerator unit is equipped with medium temperature phase-change material,
The low-temperature heat accumulating unit is equipped with low-temperature phase-change material,
The high-temperature heat accumulation unit, medium temperature regenerator unit and low-temperature heat accumulating unit are in the multi-level phase change heat storage according to edge
Flow of flue gas direction, temperature sequence are arranged in order from top to bottom.
8. multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver according to claim 6, which is characterized in that
The thermal storage unit is internally provided with heat exchange pipeline.
9. multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver according to claim 8, which is characterized in that
One end of the heat exchange pipeline is connected with the current divider, and the other end is connected with the interflow device.
10. multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver according to claim 4, feature exist
In,
The first air switch is provided between first current divider and second reversal valve；
The second air switch is provided between second current divider and second reversal valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721319367.5U CN207455627U (en) | 2017-10-13 | 2017-10-13 | Multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721319367.5U CN207455627U (en) | 2017-10-13 | 2017-10-13 | Multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver |
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| Publication Number | Publication Date |
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| CN207455627U true CN207455627U (en) | 2018-06-05 |
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| CN201721319367.5U Expired - Fee Related CN207455627U (en) | 2017-10-13 | 2017-10-13 | Multipurpose multi-level phase change heat accumulating type high-temperature air burning energy saver |
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| Country | Link |
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| CN (1) | CN207455627U (en) |
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2017
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