CN106595362B - A kind of step heat reservoir fills hot method and apparatus - Google Patents

A kind of step heat reservoir fills hot method and apparatus Download PDF

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Publication number
CN106595362B
CN106595362B CN201611102095.3A CN201611102095A CN106595362B CN 106595362 B CN106595362 B CN 106595362B CN 201611102095 A CN201611102095 A CN 201611102095A CN 106595362 B CN106595362 B CN 106595362B
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China
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heat
storing device
fills
fill
completed
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CN201611102095.3A
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CN106595362A (en
Inventor
李帅华
赵波
杨岑玉
徐桂芝
金翼
宋鹏翔
胡晓
蒋招梧
孟晓刚
朱毅
王乐
宋洁
李志远
梁立晓
梁丹曦
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State Grid Corp of China SGCC
Global Energy Interconnection Research Institute
Economic and Technological Research Institute of State Grid Shandong Electric Power Co Ltd
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State Grid Corp of China SGCC
Global Energy Interconnection Research Institute
Economic and Technological Research Institute of State Grid Shandong Electric Power Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/006Heat storage systems not otherwise provided for
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

Abstract

Fill hot method and apparatus the present invention provides a kind of step heat reservoir, method include: obtain the first heat-storing device fill Warm status;Judge whether the first heat-storing device is completed to fill heat;If heat is filled in the completion of the first heat-storing device, controls the corresponding bypass channel of the first heat-storing device and open the bypass of the first heat-storing device;Obtain the second heat-storing device fills Warm status;Judge whether the second heat-storing device is completed to fill heat;If the second heat-storing device, which does not complete, fills heat, the outlet temperature of heater is adjusted to the first preset temperature threshold corresponding with the second heat-storing device.The program pass through obtain different heat-storing devices in real time fill Warm status, the heat-storing device bypass for filling heat will be initially completed, and it is adjusted to the outlet temperature for filling the upper level of heat-storing device of heat is not completed, so as to not complete the heat-storing device inlet temperature for filling heat in corresponding preset temperature threshold, the capacity usage ratio of step heat reservoir is not only increased, and extends the service life of heat-storing device.

Description

A kind of step heat reservoir fills hot method and apparatus
Technical field
The present invention relates to energy hole fields, and in particular to a kind of step heat reservoir fills hot method and apparatus.
Background technique
Phase-change material (PCM-Phase Change Material), which refers to, to be varied with temperature and changes state of matter and can mention For the substance of latent heat.The process of transformation physical property is known as phase transition process, and at this moment phase-change material will absorb or release is a large amount of latent Heat.This material is once widely used in human lives, will become energy-saving and environment-friendly best environmentally protective carrier, China It is classified as national research and development and utilizes sequence.The problems such as with the energy, environment, increasingly sharpens, and phase-change thermal storage technology also will be each Field is constantly developed.
During phase-change thermal storage, the problem of being related to complicated solid-liquid two-phase flow, nonequilibrium phase transition heat transfer and mass transfer, together When phase-change material and heat-exchange working medium working characteristics also in dynamic change, control strategy needs to guarantee that heat can be stored orderly.For Raising capacity usage ratio, step phase-change thermal storage are that the energy for providing heater carries out energy according to the principle of " cascade utilization " Storage, for example, can be divided into heat-storing device high, medium and low according to the difference of the phase transition temperature of phase-change material in heat-storing device Three kinds of heat-storing devices, heat release fluid is from high to low followed by three kinds of heat-storing devices, during the heat accumulation of phase-change material, heat release The temperature streamwise of fluid is being reduced, and the phase transition temperature of phase-change material is also gradually decreasing.Step phase-change heat accumulation system Remain unchanged the heat transfer temperature difference between heat release fluid and phase-change material as far as possible, therefore be able to maintain more constant hot-fluid to make phase transformation Material is endothermic melting, improves the heat absorption rate of material on the whole.And in the exothermic process of phase-change material, heat recipient fluid adverse current into Enter step phase change material device, heat recipient fluid persistently absorbs heat and increasing its temperature constantly, and the melting temperature of phase-change material Also ladder increases, this remains unchanged the heat transfer temperature difference between phase change heat storage material and heat recipient fluid also as far as possible, therefore also can The hot-fluid kept constant solidifies material exothermic, also improves the rate of heat release of material on the whole.Therefore the thought of step heat accumulation It will be more widely applied.
But in practical applications, either whether heat-storing device is phase heat-storing device, each grade of step heat reservoir Charging process is completed while heat-storing device tends not to achieve one's goal, and due to various environment and device etc., always occurs certain Level-one heat-storing device fills with, other heat-storing devices also underfill the phenomenon that, and the heat-storing device for filling with come It says immovable if being also to maintain original heating heat, just has a big chunk energy and be wasted, cause step heat accumulation The capacity usage ratio of system is very low, in addition, the heat-storing device of different stage is since heat accumulation temperature is different, for save the cost, Different materials is often used when production, different materials is different the ability to bear of temperature, therefore once occur compared with High-temperature heat-storage device is first full of, and can be damaged to lower temperature heat-storing device if heating temperature is constant, and heat accumulation dress is shortened The service life set, drawbacks described above all hinder the development of step heat reservoir.
Therefore, how to improve the capacity usage ratio of step heat reservoir, extend the service life of heat-storing device, become one Technical problem urgently to be resolved.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that in the prior art the capacity usage ratio of step heat reservoir compared with It is low, heat-storing device service life is short.Hot method and apparatus are filled to provide a kind of step heat reservoir.
In view of this, the first aspect of the embodiment of the present invention, which provides a kind of step heat reservoir, fills hot method, the ladder Grade heat reservoir include at least heater and with sequentially connected first heat-storing device of the heater and the second heat-storing device, The heat accumulation temperature of first heat-storing device is greater than the heat accumulation temperature of second heat-storing device, each heat-storing device difference It has been arranged in parallel bypass channel, has been disconnected for thermal energy will to be filled from heat-storing device, which comprises obtain first heat accumulation Device fills Warm status;Judge whether first heat-storing device is completed to fill heat;If heat is filled in the first heat-storing device completion, The corresponding bypass channel of first heat-storing device is controlled to open first heat-storing device bypass;Obtain second heat accumulation Device fills Warm status;Judge whether second heat-storing device is completed to fill heat;If second heat-storing device, which does not complete, fills heat, The outlet temperature of the heater is then adjusted to the first preset temperature threshold corresponding with second heat-storing device.
Preferably, further includes: in the step heat reservoir include at least one third heat-storing device, the third heat accumulation When the heat accumulation temperature of device is less than the heat accumulation temperature of second heat-storing device, obtain the third heat-storing device fills hot shape State.
Preferably, further includes: if heat is filled in first heat-storing device completion, and second heat-storing device completion is filled Heat then controls the corresponding bypass channel of second heat-storing device and opens second heat-storing device bypass;Judge described Whether three heat-storing devices are completed to fill heat;If the third heat-storing device, which does not complete, fills heat, by the outlet temperature of the heater It is adjusted to the second preset temperature threshold corresponding with the third heat-storing device.
Preferably, further includes: if first heat-storing device, which does not complete, fills heat, and second heat-storing device completion is filled Heat then controls the corresponding bypass channel of second heat-storing device and opens second heat-storing device bypass;Judge described Whether three heat-storing devices are completed to fill heat;If the third heat-storing device, which does not complete, fills heat, by the outlet temperature of the first heat-storing device Degree is adjusted to second preset temperature threshold corresponding with the third heat-storing device.
Preferably, further includes: judge whether the third heat-storing device is completed to fill heat;If the third heat-storing device is not complete At heat is filled, then judge whether first heat-storing device is completed to fill heat;If heat is filled in the first heat-storing device completion, institute is controlled State the corresponding bypass channel of the first heat-storing device open will first heat-storing device bypass, while by the outlet temperature of heater It is adjusted to second preset temperature threshold corresponding with the third heat-storing device.
The second aspect of the embodiment of the present invention provides a kind of step heat reservoir and fills thermal, the step heat reservoir It is stored up including at least heater and with sequentially connected first heat-storing device of the heater and the second heat-storing device, described first The heat accumulation temperature of thermal is greater than the heat accumulation temperature of second heat-storing device, and each heat-storing device has been arranged in parallel respectively Bypass channel is disconnected for that will fill thermal energy from heat-storing device, and described device includes: the first acquisition module, described for obtaining First heat-storing device fills Warm status;First judgment module, for judging whether first heat-storing device is completed to fill heat;First Control module controls the corresponding bypass channel of first heat-storing device if filling heat for first heat-storing device completion It opens and bypasses first heat-storing device;Second obtains module, fills Warm status for obtain second heat-storing device;The Two judgment modules, for judging whether second heat-storing device is completed to fill heat;First adjustment module, if for second storage Thermal, which does not complete, fills heat, then it is pre- the outlet temperature of the heater to be adjusted to corresponding with second heat-storing device first If temperature threshold.
Preferably, further includes: third obtains module, for including at least one third heat accumulation in the step heat reservoir Device obtains the third when heat accumulation temperature of the third heat-storing device is less than the heat accumulation temperature of second heat-storing device Heat-storing device fills Warm status.
Preferably, further includes: the second control module, if filling heat for first heat-storing device completion, and described the Heat is filled in the completion of two heat-storing devices, then controls the corresponding bypass channel of second heat-storing device and open second heat-storing device Bypass;Third judgment module, for judging whether the third heat-storing device is completed to fill heat;Second adjustment module, if being used for institute It states third heat-storing device and does not complete and fill heat, be then adjusted to the outlet temperature of the heater corresponding with the third heat-storing device The second preset temperature threshold.
Preferably, further includes: third control module fills heat if not completing for first heat-storing device, and described Heat is filled in the completion of second heat-storing device, then controls the corresponding bypass channel of second heat-storing device and open second heat accumulation dress Set bypass;4th judgment module, for judging whether the third heat-storing device is completed to fill heat;Third adjustment module, if for The third heat-storing device, which does not complete, fills heat, then is adjusted to the outlet temperature of the first heat-storing device and the third heat-storing device Corresponding second preset temperature threshold.
Preferably, further includes: the 5th judgment module, for judging whether the third heat-storing device is completed to fill heat;6th Judgment module fills heat if not completing for the third heat-storing device, judges whether first heat-storing device is completed to fill heat; 4th control module controls the corresponding bypass of first heat-storing device if filling heat for first heat-storing device completion Channel, which is opened, bypasses first heat-storing device, while the outlet temperature of heater being adjusted to and the third heat-storing device Corresponding second preset temperature threshold.
Technical solution of the present invention has the advantage that
Step heat reservoir provided in an embodiment of the present invention fills hot method and apparatus, by obtaining the first, second and third storage in real time Thermal fills Warm status, is initially completed the target heat-storing device for filling heat to obtain, then bypasses target heat-storing device, and right The outlet temperature of the upper level of the unfinished heat-storing device for filling heat is adjusted, so as to not complete the heat-storing device import temperature for filling heat Degree makes the unfinished heat-storing device for filling heat continue to normally complete charging process, so realizes in corresponding preset temperature threshold Control to every level-one heat-storing device charging process, not only ensure that the reasonable utilization of heat energy, improves step heat accumulation The capacity usage ratio of system, and the damage to heat-storing device is reduced, storage is extended in the case where not changing production cost The service life of thermal.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the step heat reservoir of the embodiment of the present invention 1 fills a flow chart of hot method;
Fig. 2 is a functional block diagram of the step heat reservoir of the embodiment of the present invention 1.
Fig. 3 is that the step heat reservoir of the embodiment of the present invention 2 fills a block diagram of hot square law device.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " first ", " second " are used for description purposes only, and cannot It is interpreted as indication or suggestion relative importance.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments It can be combined with each other at conflict.
Embodiment 1
The present embodiment provides a kind of step heat reservoirs to fill hot method, can be applied to step heat reservoir as shown in Figure 2, Step heat reservoir includes: the first heat-storing device that blower 21, heater 22, bypass channel 23 and heat accumulation temperature successively reduce 24, the heat accumulation temperature of the second heat-storing device 25 and third heat-storing device 26, the first heat-storing device 24 is greater than the second heat-storing device 25 Heat accumulation temperature, each heat-storing device has been arranged in parallel bypass channel 23 respectively, disconnected for thermal energy will to be filled from heat-storing device, The technical solution of the present embodiment is described in detail by taking step heat reservoir shown in Fig. 2 as an example below, as shown in Figure 1, the step Heat reservoir fills hot method and includes the following steps:
S11: obtaining first heat-storing device 24 and fill Warm status, fill herein Warm status including but not limited to: it is default to fill hot temperature It spends threshold value and currently fills hot temperature, each heat-storing device respectively corresponds respective preset and fills hot temperature threshold and currently fill hot warm Degree, for example the current of the first heat-storing device 24 can be determined by the temperature in the exit of the first heat-storing device of real-time detection 24 Fill hot temperature.
S12: judging whether the first heat-storing device 24 is completed to fill heat, such as can be by the detect in step S11 first storage Thermal 24 currently fill hot temperature with it is corresponding it is default fill hot temperature threshold and be compared, reach pair if currently filling hot temperature Answer it is default fill hot temperature threshold, then enter step S13, otherwise return step S11.
S13: if heat is filled in the completion of the first heat-storing device 24, controlling the corresponding bypass channel opening of the first heat-storing device 24 will The bypass of first heat-storing device 24 does not need to schedule to last again to continue to provide and fills heat since first heat-storing device 24 fills with, Therefore it can control the opening of associated shunt channel 23 to be bypassed, fill thermal energy to realize and rationally utilize.
S14: obtain the second heat-storing device 25 fills Warm status, herein similarly in step S11 to the first heat-storing device 24 The acquisition for filling Warm status, for details, reference can be made to the associated descriptions in step S11.
S15: judging whether the second heat-storing device 25 is completed to fill heat, it is equally possible that according to the second heat-storing device 25 Currently fill hot temperature with it is corresponding it is default fill hot temperature threshold and be compared, default filled if currently filling hot temperature and reaching corresponding Hot temperature threshold illustrates that the second heat-storing device 25 is also completed to fill heat, then according to the working principle of the step heat reservoir, Ke Yishi When close the step heat reservoir, otherwise, illustrate the second heat-storing device 25 be underfill, then enter step S16.
S16: if the second heat-storing device 25, which does not complete, fills heat, since the first heat-storing device 24 has been bypassed, heater 22 In the thermal energy that fills will be directed into the second heat-storing device 25, and the outlet temperature of this heater 22 is relative to the second heat-storing device It is relatively high for 25, then the outlet temperature of heater 22 is adjusted to the first preset temperature threshold corresponding with the second heat-storing device Value, not only avoids inlet temperature excessively high and damages to the second heat-storing device 25, while improving capacity usage ratio.First is pre- herein If temperature threshold is determined by the heat storage function and its production technology of the second heat-storing device 25, it is also possible to according to actual needs in advance One temperature range of setting.Specifically, as shown in Fig. 2, if the first heat-storing device 24 is first full of, by step S13 by After the bypass of one heat-storing device 24, the heating power of heater 22 can be reduced, energy dissipation is avoided, in addition, according to step heat accumulation The working principle of system, the heat release stream for filling heat will be flowed out from heater 22, be flowed through and be initially entered the after bypass channel 23 Two heat-storing devices 25, and the temperature T2 higher that heater 22 exports at this time, can make the inlet temperature T7 liter of the second heat-storing device 25 Height then can reduce T2 by increasing the flow of blower 21, can also open cold air bypass, and then reduce the second heat accumulation dress The temperature T7 for setting 25 entrances, makes T7 in the first preset temperature threshold, such as by the first preset temperature threshold in the present embodiment For (300 DEG C~350 DEG C), then it is necessary to ensure that 300 DEG C < T7 < 350 DEG C at this time, to guarantee that the second heat-storing device 25 can continue just Normal charging process.
Above-mentioned step heat reservoir fills hot method, fills Warm status by obtain the first, second and third heat-storing device in real time, with The target heat-storing device for being initially completed and filling heat is obtained, then bypasses target heat-storing device, and is filled to the heat accumulation for filling heat is not completed The outlet temperature for the upper level set is adjusted, so as to not complete the heat-storing device inlet temperature for filling heat in corresponding preset temperature In threshold value, makes the unfinished heat-storing device for filling heat continue to normally complete charging process, so realize to every level-one heat-storing device The control of charging process not only ensure that the reasonable utilization of heat energy, improve the capacity usage ratio of step heat reservoir, and And damage to heat-storing device is reduced, the service life of heat-storing device is extended in the case where not changing production cost.
As a preferred embodiment, further includes: in step heat reservoir include at least one third heat-storing device 26, third The heat accumulation temperature of heat-storing device 26 less than second heat-storing device 25 heat accumulation temperature when, obtain third heat-storing device 26 and fill hot shape State.Further include: if heat is filled in the completion of the first heat-storing device 24, and heat is filled in the completion of the second heat-storing device 25, then controls the second heat accumulation The corresponding bypass channel of device 25 opening bypasses the second heat-storing device 25;Judge whether third heat-storing device 26 is completed to fill heat; If third heat-storing device 26, which does not complete, fills heat, the outlet temperature of heater 22 is adjusted to corresponding with third heat-storing device 26 Second preset temperature threshold.The second preset temperature threshold is determined by the heat storage function and its production technology of the second heat-storing device 25 herein It is fixed, it is also possible to a preset temperature range according to actual needs.Specifically, as shown in Fig. 2, if the first heat accumulation fills It sets 24 to be first full of, then proceedes to judge who first completes to fill heat, judging result point for the second heat-storing device 25 and third heat-storing device 26 The following two kinds: if the 1, second heat-storing device 25 is first full of, illustrating to there remains third heat-storing device 26 and do not complete and fills heat, at this time for Avoid energy dissipation that from can suitably reducing the heating power of heater 22, simultaneously as 22 outlet air temperature T2 of heater compared with Height can be such that 26 inlet temperature T9 of third heat-storing device increases, and can continue to reduce T2 by increasing the flow of blower 21, and beat Cold air bypass is opened, and then reduces by 26 inlet temperature T9 of third heat-storing device, makes T9 in the second preset temperature threshold, such as this The second preset temperature threshold is (150 DEG C~250 DEG C) in embodiment, then is necessary to ensure that 150 DEG C < T9 < 250 DEG C at this time, to guarantee Third heat-storing device 26 can continue normal charging process;If 2, third heat-storing device 26 is first full of, can directly wait Second heat-storing device 25 continues to fill heat until being full of.It is above in three heat-storing devices according to the working principle of step heat reservoir After completing charging process, heater 22 is closed, to turn off blower 21 behind T2 < 50 DEG C.
As a preferred embodiment, further includes: if the first heat-storing device 24, which does not complete, fills heat, and the second heat-storing device 25 Heat is filled in completion, then controls the corresponding bypass channel opening of the second heat-storing device 25 and bypass the second heat-storing device 25;Judge third Whether heat-storing device 26 is completed to fill heat;If third heat-storing device 26, which does not complete, fills heat, by the outlet temperature of the first heat-storing device 24 Degree is adjusted to second preset temperature threshold corresponding with third heat-storing device 26.Specifically, as shown in Fig. 2, if the second heat accumulation Device 25 is first full of, and illustrates that there remains the first heat-storing device 24 and third heat-storing device 26 does not complete and fill heat, then by the second heat accumulation After device 25 bypasses, the heating power of heater 22 can be suitably reduced, energy dissipation is avoided, in addition, according to step heat accumulation system The working principle of system, the heat release stream for filling heat will be flowed out from heater 22, sequentially enter first after flowing through bypass channel 23 Heat-storing device 24 and third heat-storing device 26, and the temperature T4 of the first heat-storing device 24 outlet at this time is for third heat-storing device 26 For it is higher, the inlet temperature T9 of third heat-storing device 26 can be made to increase, then can open cold air bypass reduce third storage The temperature T9 of 26 entrance of thermal, makes T9 in the second preset temperature threshold, such as by the second preset temperature in the present embodiment Threshold value is (150 DEG C~250 DEG C), then is necessary to ensure that 150 DEG C < T9 < 250 DEG C at this time, to guarantee that third heat-storing device 26 can be after Continue normal charging process.
As a preferred embodiment, further includes: judge whether third heat-storing device 26 is completed to fill heat;If third heat-storing device 26 do not complete fill heat, then judge whether the first heat-storing device 24 is completed to fill heat;If heat is filled in the completion of the first heat-storing device 24, control The corresponding bypass channel opening of first heat-storing device 24 bypasses the first heat-storing device 24, while by the outlet temperature tune of heater Section extremely second preset temperature threshold corresponding with third heat-storing device 26.Specifically, as shown in Fig. 2, in the second heat-storing device 25 After being full of, remaining first heat-storing device 24 and third heat-storing device 26 are continued to judge that who first completes to fill heat, judging result point The following two kinds: if the 1, first heat-storing device 24 is first full of, illustrating to there remains third heat-storing device 26 and do not complete and fills heat, then by the The bypass of one heat-storing device 24, at this time to avoid energy dissipation that from can suitably reducing the heating power of heater 22, meanwhile, according to ladder The working principle of grade heat reservoir, the heat release stream for filling heat will be flowed out from heater 22, be flowed through after bypass channel 23 directly Into third heat-storing device 26, and due to 22 outlet air temperature T2 higher of heater at this time, can make third heat-storing device 26 into Mouth temperature T9 is increased, and can reduce T2 by increasing the flow of blower 21, and open cold air bypass, and then reduce third storage 26 inlet temperature T9 of thermal, makes T9 in the second preset temperature threshold, for example the second preset temperature threshold is in the present embodiment (150 DEG C~250 DEG C), then be necessary to ensure that 150 DEG C < T9 < 250 DEG C at this time, to guarantee that third heat-storing device 26 can continue normally Charging process;If 2, third heat-storing device 26 is first full of, can directly wait the first heat-storing device 24 to continue to fill heat until It is full of.It is above after three heat-storing devices complete charging process according to the working principle of step heat reservoir, close heater 22, blower 21 is turned off behind T2 < 50 DEG C.
It should be noted that illustrating to there remains the first storage if third heat-storing device 26 is first full of in three heat-storing devices Thermal 24 and the second heat-storing device 25, which do not complete, fills heat, then after bypassing third heat-storing device 26, can suitably reduce heating The heating power of device 22, avoids energy dissipation, in addition, according to the working principle of step heat reservoir, for filling the heat release stream of heat It will be flowed out from heater 22, and will continue to sequentially enter the first heat-storing device 24 and the second heat-storing device 25 carries out filling heat;Then Continue to judge who first completes to fill heat for the first heat-storing device 24 and the second heat-storing device 25, and judging result is referring to step S11-S16.Root It is above after three heat-storing devices complete charging process according to the working principle of step heat reservoir, heater 22 is closed, it be Behind T2 < 50 DEG C, blower 21 is turned off.
Embodiment 2
The present embodiment has supplied a kind of step heat reservoir to fill thermal, can be applied to step heat reservoir as shown in Figure 2, Step heat reservoir includes: the first heat-storing device that blower 21, heater 22, bypass channel 23 and heat accumulation temperature successively reduce 24, the heat accumulation temperature of the second heat-storing device 25 and third heat-storing device 26, the first heat-storing device 24 is greater than the second heat-storing device 25 Heat accumulation temperature, each heat-storing device has been arranged in parallel bypass channel 23 respectively, disconnected for thermal energy will to be filled from heat-storing device, The technical solution of the present embodiment is described in detail by taking step heat reservoir shown in Fig. 2 as an example below, as shown in figure 3, the step Heat reservoir fill thermal include: the first, second and third acquisition module, first, second, third and fourth, five, six judgment modules, first and second, Three, four control modules and the first, second and third adjustment module, each module major function are as follows:
First obtains module 301, fills Warm status for obtain the first heat-storing device 24;Referring specifically to right in embodiment 1 The detailed description of step S11.
First judgment module 302, for judging whether the first heat-storing device 24 is completed to fill heat;Referring specifically in embodiment 1 To the detailed description of step S12.
It is corresponding to control the first heat-storing device 24 if filling heat for the completion of the first heat-storing device 24 for first control module 303 Bypass channel opening the first heat-storing device 24 is bypassed;Referring specifically in embodiment 1 to the detailed description of step S13.
Second obtains module 304, fills Warm status for obtain the second heat-storing device 25;Referring specifically to right in embodiment 1 The detailed description of step S14.
Second judgment module 305, for judging whether the second heat-storing device 25 is completed to fill heat;Referring specifically in embodiment 1 To the detailed description of step S15.
First adjustment module 306 fills heat if not completing for the second heat-storing device 25, by the outlet temperature tune of heater Section extremely first preset temperature threshold corresponding with the second heat-storing device 25.Referring specifically to retouching in detail to step S16 in embodiment 1 It states.
As a preferred embodiment, further includes: third obtains module 307, for including at least one in step heat reservoir A third heat-storing device 26, the heat accumulation temperature of third heat-storing device 26 less than the second heat-storing device 25 heat accumulation temperature when, obtain Third heat-storing device 26 fills Warm status.Further include: the second control module 308, if filling heat for the completion of the first heat-storing device 24, And heat is filled in the completion of the second heat-storing device 25, then controls the corresponding bypass channel of the second heat-storing device 25 and open the second heat accumulation dress Set 25 bypasses;Third judgment module 309, for judging whether third heat-storing device 26 is completed to fill heat;Second adjustment module 310, If not completed for third heat-storing device 26 and filling heat, the outlet temperature of heater is adjusted to corresponding with third heat-storing device 26 The second preset temperature threshold.Referring specifically to the correlation detailed description in embodiment 1.
As a preferred embodiment, further includes: third control module 311 is filled if not completing for the first heat-storing device 24 Heat, and heat is filled in the completion of the second heat-storing device 25, then controls the corresponding bypass channel of the second heat-storing device 25 and open the second storage Thermal 25 bypasses;4th judgment module 312, for judging whether third heat-storing device 26 is completed to fill heat;Third adjustment module 313, heat is filled if not completing for third heat-storing device 26, the outlet temperature of the first heat-storing device 24 is adjusted to and is stored up with third Corresponding second preset temperature threshold of thermal 26.Referring specifically to the correlation detailed description in embodiment 1.
As a preferred embodiment, further includes: the 5th judgment module 314, for judging whether third heat-storing device 26 is complete At filling heat;6th judgment module 315 fills heat if not completing for third heat-storing device 26, judges that the first heat-storing device 24 is Heat is filled in no completion;4th control module 316 controls the first heat-storing device 24 if filling heat for the completion of the first heat-storing device 24 Corresponding bypass channel opening bypasses the first heat-storing device 24, while the outlet temperature of heater being adjusted to and third heat accumulation Corresponding second preset temperature threshold of device 26.Referring specifically to the correlation detailed description in embodiment 1.
Step heat reservoir provided in this embodiment fills thermal, by obtaining filling for the first, second and third heat-storing device in real time Warm status is initially completed the target heat-storing device for filling heat to obtain, then bypasses target heat-storing device, and fill heat to not completing The outlet temperature of upper level of heat-storing device be adjusted, so as to not complete the heat-storing device inlet temperature for filling heat corresponding In preset temperature threshold, makes the unfinished heat-storing device for filling heat continue to normally complete charging process, so realize to every level-one The control of heat-storing device charging process not only ensure that the reasonable utilization of heat energy, improve the energy of step heat reservoir Utilization rate, and the damage to heat-storing device is reduced, making for heat-storing device is extended in the case where not changing production cost Use the service life.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes still within the protection scope of the invention.

Claims (10)

1. a kind of step heat reservoir fills hot method, the step heat reservoir include at least heater and with the heater Sequentially connected first heat-storing device and the second heat-storing device, the heat accumulation temperature of first heat-storing device are greater than second storage The heat accumulation temperature of thermal, each heat-storing device have been arranged in parallel bypass channel respectively, for that will fill thermal energy from heat accumulation Device disconnects, which is characterized in that the described method includes:
Obtain first heat-storing device fills Warm status;
Judge whether first heat-storing device is completed to fill heat;
If heat is filled in the first heat-storing device completion, controlling the corresponding bypass channel opening of first heat-storing device will be described The bypass of first heat-storing device;
Obtain second heat-storing device fills Warm status;
Judge whether second heat-storing device is completed to fill heat;
If second heat-storing device, which does not complete, fills heat, the outlet temperature of the heater is adjusted to and second heat accumulation Corresponding first preset temperature threshold of device.
2. step heat reservoir according to claim 1 fills hot method, which is characterized in that further include:
It include at least one third heat-storing device in the step heat reservoir, the heat accumulation temperature of the third heat-storing device is less than When the heat accumulation temperature of second heat-storing device, obtain the third heat-storing device fills Warm status.
3. step heat reservoir according to claim 2 fills hot method, which is characterized in that further include:
If heat is filled in the first heat-storing device completion, and heat is filled in second heat-storing device completion, then controls second storage The corresponding bypass channel of thermal, which is opened, bypasses second heat-storing device;
Judge whether the third heat-storing device is completed to fill heat;
If the third heat-storing device, which does not complete, fills heat, the outlet temperature of the heater is adjusted to and the third heat accumulation Corresponding second preset temperature threshold of device.
4. step heat reservoir according to claim 3 fills hot method, which is characterized in that further include:
If first heat-storing device, which does not complete, fills heat, and heat is filled in second heat-storing device completion, then controls described second The corresponding bypass channel of heat-storing device, which is opened, bypasses second heat-storing device;
Judge whether the third heat-storing device is completed to fill heat;
If the third heat-storing device, which does not complete, fills heat, the outlet temperature of the first heat-storing device is adjusted to and is stored up with the third Corresponding second preset temperature threshold of thermal.
5. step heat reservoir according to claim 4 fills hot method, which is characterized in that further include:
Judge whether the third heat-storing device is completed to fill heat;
If the third heat-storing device, which does not complete, fills heat, judge whether first heat-storing device is completed to fill heat;
If heat is filled in the first heat-storing device completion, controlling the corresponding bypass channel opening of first heat-storing device will be described The bypass of first heat-storing device, while the outlet temperature of heater is adjusted to corresponding with the third heat-storing device described second Preset temperature threshold.
6. a kind of step heat reservoir fills thermal, the step heat reservoir include at least heater and with the heater Sequentially connected first heat-storing device and the second heat-storing device, the heat accumulation temperature of first heat-storing device are greater than second storage The heat accumulation temperature of thermal, each heat-storing device have been arranged in parallel bypass channel respectively, for that will fill thermal energy from heat accumulation Device disconnects, which is characterized in that described device includes:
First obtains module, fills Warm status for obtain first heat-storing device;
First judgment module, for judging whether first heat-storing device is completed to fill heat;
It is corresponding to control first heat-storing device if filling heat for first heat-storing device completion for first control module Bypass channel, which is opened, bypasses first heat-storing device;
Second obtains module, fills Warm status for obtain second heat-storing device;
Second judgment module, for judging whether second heat-storing device is completed to fill heat;
First adjustment module fills heat if not completing for second heat-storing device, by the outlet temperature tune of the heater Section extremely the first preset temperature threshold corresponding with second heat-storing device.
7. step heat reservoir according to claim 6 fills thermal, which is characterized in that further include:
Third obtains module, for including at least one third heat-storing device, the third heat accumulation in the step heat reservoir When the heat accumulation temperature of device is less than the heat accumulation temperature of second heat-storing device, obtain the third heat-storing device fills hot shape State.
8. step heat reservoir according to claim 7 fills thermal, which is characterized in that further include:
Second control module, if filling heat for first heat-storing device completion, and heat is filled in second heat-storing device completion, The corresponding bypass channel of second heat-storing device is then controlled to open second heat-storing device bypass;
Third judgment module, for judging whether the third heat-storing device is completed to fill heat;
Second adjustment module fills heat if not completing for the third heat-storing device, by the outlet temperature tune of the heater Section extremely the second preset temperature threshold corresponding with the third heat-storing device.
9. step heat reservoir according to claim 8 fills thermal, which is characterized in that further include:
Third control module fills heat if not completing for first heat-storing device, and second heat-storing device completion is filled Heat then controls the corresponding bypass channel of second heat-storing device and opens second heat-storing device bypass;
4th judgment module, for judging whether the third heat-storing device is completed to fill heat;
Third adjustment module fills heat if not completing for the third heat-storing device, by the outlet temperature of the first heat-storing device It is adjusted to the second preset temperature threshold corresponding with the third heat-storing device.
10. step heat reservoir according to claim 9 fills thermal, which is characterized in that further include:
5th judgment module, for judging whether the third heat-storing device is completed to fill heat;
6th judgment module fills heat if not completing for the third heat-storing device, whether judges first heat-storing device Heat is filled in completion;
It is corresponding to control first heat-storing device if filling heat for first heat-storing device completion for 4th control module Bypass channel, which is opened, bypasses first heat-storing device, while the outlet temperature of heater being adjusted to and the third heat accumulation Corresponding second preset temperature threshold of device.
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