CN207584811U - Multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver - Google Patents

Multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver Download PDF

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CN207584811U
CN207584811U CN201721320700.4U CN201721320700U CN207584811U CN 207584811 U CN207584811 U CN 207584811U CN 201721320700 U CN201721320700 U CN 201721320700U CN 207584811 U CN207584811 U CN 207584811U
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heat
storage
connect
temperature
phase
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王培伦
孟嘉乐
郑倩倩
窦丛丛
田广胜
吴道洪
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Shenwu Technology Group Corp Co Ltd
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Shenwu Technology Group Corp Co Ltd
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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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Abstract

A kind of multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver of the utility model includes 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 connect with the first reversal valve, burner is connect with heat storage, and combustion chamber is connect 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 connect with current divider, and one end of heat storage is connect with current divider, and the other end is connect with interflow device.The device can efficiently use fume afterheat, improve the stability of burner flame.The multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver is simple in structure simultaneously, is easily transformed, and related phase-change material can be replaced according to different operating modes.

Description

Multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver
Technical field
The utility model belongs to combustion energy saving technical field more particularly to a kind of multipurpose modular multistage phase-change heat-storage High-temperature air burning energy saver.
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 problems Important link.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.
Invention content
To solve the above-mentioned problems, it is empty to provide a kind of multipurpose modular multistage phase-change heat-storage high temperature for the utility model Gas combustion energy saving device, 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, first reversal valve point The first import and offgas outlet, and any switching laws between first import and the offgas outlet are not connected, pass through described One import flows into normal temperature air, and the heat storage is connect with first reversal valve, and the burner is connect with the heat storage, institute Combustion chamber is stated to connect with the burner；The surplus heat treatment system includes the second reversal valve, current divider, heat storage and interflow Device, second reversal valve connect the second import, flow into normal temperature air or normal-temperature water by second import, described second changes It being connect to valve with the current divider, one end of the heat storage is connect with the current divider, and the other end is connect with the interflow device, S-shaped heat exchange pipeline is provided in the heat storage.
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 connect 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 connect with second heat storage；First burner and second burner are connected separately with oil Air cock.
Further, the current divider includes level-one current divider and two level current divider, the level-one current divider and described the Two reversal valves connect, and one end of the two level current divider is connect with the level-one current divider, and the other end is connect with the heat storage.
Further, the interflow device includes level-one interflow device, two level interflow device and three-level and collaborates device, and the three-level is closed One end of stream device is connect with the heat storage, and the other end is connect with two level interflow device, the level-one interflow device and described two The device connection of grade interflow.
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.
Further, 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 Become material, the low-temperature heat accumulating unit is made equipped with low-temperature phase-change material, the high-temperature heat accumulation unit, medium temperature regenerator unit and Low-temperature heat accumulating unit is arranged in order in the multi-level phase change heat storage according to along flow of flue gas direction, temperature sequence.
Preferably, the thermal storage unit is bulk, and inside offers duct, the area of section in the duct and the accumulation of heat The area of section ratio of unit is 0.2-0.5.
Further, it is both provided with one in the high-temperature heat accumulation unit, medium temperature regenerator unit and low-temperature heat accumulating unit The S-shaped heat exchange pipeline, three S-shaped heat exchange pipeline connections connect, in S-shaped heat exchange pipeline in medium flow direction and thermal storage unit Flue gas flow direction is opposite.
A kind of the advantages of multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver of the utility model It 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. the waste heat life in the utility model uses the S-shaped heat exchange layout of high efficient heat exchanging during utilizing.
8. the waste heat life in the utility model is using process using the mode of classified utilization waste heat after heat exchange.
Description of the drawings
Fig. 1 is the utility model multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver waste heat interflow The schematic diagram utilized.
Fig. 2 is the classification of the utility model multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver waste heat The schematic diagram utilized.
Fig. 3 is the structure diagram of the utility model multipurpose multi-level phase change thermal storage unit.
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-, 12- level-ones current divider, 13- two levels current divider, 14- three-levels interflow device, 15- two levels interflow device, 16- level-ones interflow device, 17- heat exchange pipelines, 18- high temperature store Hot cell, 19- medium temperature regenerators unit, 20- low-temperature heat accumulatings unit, 161- air outlet slits.
Specific embodiment
Below with reference to attached drawing, to the multipurpose modular multistage phase-change heat-storage high-temperature air burning section of the utility model Energy device is described further.
The energy saving dress of multipurpose modular multistage phase-change heat-storage high-temperature air burning of the utility model according to figure 1 The schematic diagram that waste heat interflow utilizes is put, the device of the utility model includes：Regenerative Combustion System and surplus heat treatment system.The storage Hot combustion system includes the first reversal valve 2, heat storage, burner and combustion chamber 6, and first reversal valve 2 connects the first import 1 With offgas outlet 9, and any switching laws between first import 1 and the offgas outlet 9, the heat storage are changed with described first It is connected to valve 2, the burner is connect with the heat storage, and the combustion chamber 6 is connect with the burner；The surplus heat treatment system Including the second reversal valve 11, current divider, heat storage and interflow device, second reversal valve 11 connects the second import 10, described Second reversal valve 11 is connect with the current divider, and one end of the heat storage is connect with the current divider, the other end and the conjunction Flow device connection.
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 connect by first reversal valve 2 with first import 1 or the offgas outlet 9；Second heat storage 8 are connect by first reversal valve 2 with the offgas outlet 9 or first import 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 connect with first heat storage 3；Second burner 7 is connect with second heat storage 8；First burner 5 and described Second burner 7 is connected separately with oil and gas switch 4.
Embodiment according to the present utility model, the current divider includes level-one current divider 12 and two level current divider 13, described Level-one current divider 12 is connect with second reversal valve 11, and one end of the two level current divider 13 connects with the level-one current divider 12 It connects, the other end is connect with the heat storage.
Embodiment according to the present utility model, the interflow device include level-one interflow device 16, two level interflow device 15 and three Grade interflow device 14, one end of three-level interflow device 14 are connect with the heat storage, and the other end connects with two level interflow device 15 It connects, the level-one interflow device 16 is connect with two level interflow device 15.
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.
Embodiment according to the present utility model, the heat storage are multi-level phase change heat storage.The heat storage includes multiple Thermal storage unit, the thermal storage unit include high-temperature heat accumulation unit 18, medium temperature regenerator unit 19, low-temperature heat accumulating unit 20.The height Intermediate temperature regenerator 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 is equipped with low-temperature phase-change material, and the high-temperature heat accumulation unit 18, medium temperature regenerator unit 19 and low-temperature heat accumulating unit 20 exist It is arranged in order in the heat storage according to along flow of flue gas direction, temperature sequence.There is heat when being stored in heat storage phase-change material After amount, there are many sizing phase-change materials in heat storage, and phase-change material is arranged in order from high to low according to phase transition temperature, due to tradition Phase-change material be the low inorganic salt materials of thermal conductivity factor, therefore each row phase-change material is staggered to improve heat storage Heat transfer effect.
Embodiment according to the present utility model, the high-temperature heat accumulation unit 18, medium temperature regenerator unit 19 and low-temperature heat accumulating A S-shaped heat exchange pipeline, three S-shaped heat exchange pipeline connection connections are both provided in unit 20.
For Fig. 2 the utility model multipurpose modular multistage phase-change heat-storage high-temperature air burning sections of the utility model For the schematic diagram of energy device by utilizing waste heat classified utilization, hot-air/water that heat exchange comes out during waste heat life utilizes no longer closes Stream, and high, medium and low three stocks step connection air/water is divided into using device, it is further by way of waste heat classified utilization Improve the utilization ratio of heat for exchanging heat out.
The structure diagram of the multipurpose multi-level phase change thermal storage unit of shown the utility model according to fig. 3, the accumulation of heat Unit is bulk, and inside offers duct, and the area of section ratio of the area of section in the duct and the thermal storage unit is 0.2- 0.5, i.e. this direction area of section ratio of the thermal storage unit of the radial cross-sectional area in duct and place is 0.2-0.5.Certainly, Duct shape inside thermal storage unit in the present invention can also make S-shaped, when heat exchanging fluid is flowed through from heat exchange pipeline 17 It waits, is exchanged heat by heat exchange pipeline and phase-change material, heat exchanging fluid is heated.Water (flow) direction in S-shaped heat exchange pipeline 17 with The direction of flow of flue gas is opposite.Since sizing phase-change material makes simply, size can be made according to actual conditions.It can make It is 2 to be made length, width and height ratio:1:1 cuboid.
The purpose of this utility model is that propose a kind of multipurpose modular multistage phase-change heat-storage high-temperature air burning section Energy device, the device can efficiently use fume afterheat, improve the stability of burner flame.Heat-exchanger rig structure letter simultaneously It is single, it is easily transformed, related phase-change material can be replaced according to different operating modes.Due to phase-change material just have storage density it is big, The advantages that phase transition temperature is constant, phase transformation volume change is small so that the heat-accumulating burner solves gas and commutates frequently, after preheating Air temperature variations range greatly caused burner flame combustion instability the problem of.
A kind of accumulation of heat of the multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver of the utility model The operational process of combustion system is：Normal temperature air enters the first reversal valve 2 by the first import 1, at this point, first reversal valve 2 commutate by solid line in Fig. 1.Enter multistage first heat storage, 3 gap in right side after normal temperature air, at this time multistage first accumulation of heat Being stored in the latent heat storage material of body 3 has heat, and gas at normal temperature by heating after first heat storage of multistage 3 by entering the first burner 5.At this point, the oil and gas switch 4 positioned at right side is open-minded, the oil and gas import 4 positioned at left side is closed, and fuel oil or combustion gas then pass through right side oil Air cock 4 enters in the first burner 5 of right side, mixes with heated gas and burns in combustion chamber 6.Tail gas after burning is then Entered in multistage second heat storage 8 in left side by the second burner of left side 7.At this point, waste heat from tail gas is stored in left side multistage second In heat storage 8.Tail gas after being cooled down enters after being come out from multistage second heat storage 8 in the first reversal valve 2, through offgas outlet 9 Discharge.
Combustion air heating process：Until the heat release of latent heat heat accumulating finishes in the first heat storage 3 of multistage of right side Afterwards, the reversal valve 2 then commutates as shown in phantom in Figure 1, at this point, normal temperature air is changed by the first import 1 into first Into valve 2, later into multistage second heat storage 8 in left side, second heat storage of multistage 8 has stored heat at this time, and normal Warm air then enters after second heat storage of multistage 8 is preheated in the second burner of left side 7.At this point, left side oil and gas switch 4 is opened Logical, fuel oil or combustion gas are then entered by left side oil and gas switch 4 in the second burner 7 of left side, are mixed and are being fired with heated gas It burns in room 6 and burns.Gas after burning is then entered by the first burner of right side 5 in multistage first heat storage 3 in right side.At this point, tail Gas waste heat is stored in multistage first heat storage 3 in right side, and 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：Normal temperature air passes through the second reversal valve 11 by the second import 10, and second reversal valve 11 is pressed in figure Solid line commutates, and exchanges heat after heating up from the right side into 3 inside middle pipeline of the first heat storage of right side, air and phase-change material later The first heat storage of side 3 comes out, and is flowed out after collaborating device from the air outlet slit 161 of interflow device.At this point, the air after heating can be used In 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 eats dishes without rice or wine 10 into the second reversal valve 11 by second, later 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 161 on the device of interflow.At this point, the air after heating can be used for industry or daily life It is living, so on circulate.Certain above-mentioned normal temperature air can replace with other fluids, such as normal-temperature water etc. as needed.
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 It is 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℃；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 transition temperature are 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 220 ℃；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 that will illustrate corresponding phase-change material under different reaction temperatures 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. combustion gas (methane) and the air preheated by the first heat storage 3 are entered into the first burner 5 and fired in combustion chamber 6 It burns.
3. the tail gas after burning enters 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 enters the phase transformation material that the first heat storage 3 is stored 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. combustion gas (methane) and the air preheated by the first heat storage 3 are entered into the first burner 5 and fired in combustion chamber 6 It burns.
3. the tail gas after burning enters 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 enters the phase transformation material that the first heat storage 3 is stored 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 and for different waste heat supply temperatures, need that using different phase-change materials applying working condition could be met.
In the utility model unless specifically defined or limited otherwise, 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 specifically defined or limited otherwise, fisrt feature is "above" or "below" second feature Can be that the first and second features are in direct contact 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 right 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 ", " example ", " is specifically shown " some embodiments " 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 are 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 or examples described in this specification and the feature of different embodiments or examples can be combined by personnel And combination.

Claims (10)

  1. A kind of 1. multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver, which is characterized in that described device
    Including：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 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 connect with first reversal valve, and the burner is connect with the heat storage, the combustion Room is burnt to connect 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 connect with the current divider, One end of the heat storage is connect with the current divider, and the other end is connect with the interflow device；
    S-shaped heat exchange pipeline is provided in the heat storage.
  2. 2. multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver according to claim 1, special Sign is that the heat storage includes the first heat storage and the second heat storage,
    First heat storage is connect by first reversal valve with first import or the offgas outlet；
    Second heat storage is connect by first reversal valve with the offgas outlet or first import.
  3. 3. multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver according to claim 2, special Sign is that the burner includes the first burner and the second burner,
    First burner is connect with first heat storage；
    Second burner is connect with second heat storage；
    First burner and second burner are connected separately with oil and gas switch.
  4. 4. multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver according to claim 1, special Sign is that the current divider includes level-one current divider and two level current divider,
    The level-one current divider is connect with second reversal valve, and one end of the two level current divider connects with the level-one current divider It connects, the other end is connect with the heat storage.
  5. 5. multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver according to claim 1, special Sign is that the interflow device includes level-one interflow device, two level interflow device and three-level interflow device,
    One end of three-level interflow device is connect with the heat storage, and the other end is connect with two level interflow device, the level-one Interflow device is connect with two level interflow device.
  6. 6. multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver according to claim 5, special Sign is that the heat storage is multi-level phase change heat storage.
  7. 7. multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver according to claim 6, special Sign is 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.
  8. 8. multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver according to claim 7, special Sign is,
    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.
  9. 9. multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver according to claim 7, special Sign is that the thermal storage unit is bulk, and inside offers duct,
    The area of section ratio of the area of section in the duct and the thermal storage unit is 0.2-0.5.
  10. 10. multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver according to claim 7, special Sign is, a S-shaped heat exchange is both provided in the high-temperature heat accumulation unit, medium temperature regenerator unit and low-temperature heat accumulating unit Pipeline, three S-shaped heat exchange pipeline connections connect, medium flow direction and flue gas flow direction phase in thermal storage unit in S-shaped heat exchange pipeline Instead.
CN201721320700.4U 2017-10-13 2017-10-13 Multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver Active CN207584811U (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
GB2576088A (en) * 2018-06-13 2020-02-05 City Univ Of London Thermal storage apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2576088A (en) * 2018-06-13 2020-02-05 City Univ Of London Thermal storage apparatus
GB2576088B (en) * 2018-06-13 2021-07-28 City Univ Of London Modular thermal energy storage apparatus

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