CN106595362A - Heat charging system and device for cascade heat storage system - Google Patents
Heat charging system and device for cascade heat storage system Download PDFInfo
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- CN106595362A CN106595362A CN201611102095.3A CN201611102095A CN106595362A CN 106595362 A CN106595362 A CN 106595362A CN 201611102095 A CN201611102095 A CN 201611102095A CN 106595362 A CN106595362 A CN 106595362A
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- heat
- storing device
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D2020/006—Heat storage systems not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention provides a heat charging system and device for a cascade heat storage system. The method comprises the steps of: acquiring a heat charging state of a first heat storage device; judging whether the first heat storage device fulfills heat charging or not; if the first heat storage device fulfills heat charging, controlling a bypass channel corresponding to the first heat storage device to open a first heat storage device bypass; acquiring a heat charging state of a second storage device; judging whether the second heat storage device fulfills heat charging or not; and if the second heat storage device does not fulfill heat charging, adjusting the outlet temperature of a heater to a first predetermined temperature threshold value corresponding to the second heat storage device. According to the scheme, by acquiring the heat charging states of different heat storage devices, the heat storage device bypass which fulfills heat first is opened and the outlet temperature of the previous stage of the heat storage device which does not fulfill heat charging is adjusted, so that the inlet temperature of the heat storage device which does not fulfill heat charging is in the corresponding predetermined temperature threshold value. Therefore, not only is the energy utilization ratio of the cascade heat storage system improved, but also the service lives of the heat storage devices are prolonged.
Description
Technical field
The present invention relates to energy hole field, and in particular to a kind of step heat reservoir fills thermal means and device.
Background technology
Phase-change material (PCM-Phase Change Material) refers to and varies with temperature and change state of matter and can carry
For the material of latent heat.The process of transformation physical property is referred to as phase transition process, and at this moment phase-change material will absorb or discharge substantial amounts of latent
Heat.This material is once widely used in human lives, will become the optimal environmental protection carrier of energy-conserving and environment-protective, in China
Jing is classified as national research and development and utilizes sequence.With the increasingly sharpening the problems such as energy, environment, phase-change thermal storage technology also will be at each
Field is constantly developed.
During phase-change thermal storage, it is related to the problem of the solid-liquid two-phase flow, nonequilibrium phase transition heat transfer and mass transfer of complexity, together
When phase-change material and heat-exchange working medium operating characteristic also in dynamic change, control strategy need ensure heat can store in order.For
Raising capacity usage ratio, step phase-change thermal storage are that the energy that heater is provided is carried out energy according to the principle of " cascade utilization "
Storage, such as, according to the difference of the phase transition temperature of phase-change material in heat-storing device, heat-storing device can be divided into high, medium and low
Three kinds of heat-storing devices, heat release fluid flow through three kinds of heat-storing devices, during the heat accumulation of phase-change material, heat release from high to low successively
The temperature streamwise of fluid is in reduction, and the phase transition temperature of phase-change material is also being gradually lowered.Step phase-change heat accumulation system
Make the heat transfer temperature difference between heat release fluid and phase-change material as keep constant as possible, therefore more constant hot-fluid can be kept 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 is entered
Enter step phase change material device, heat recipient fluid persistently absorbs heat and its temperature made constantly raising, and the melting temperature of phase-change material
Also ladder is raised, and this makes the heat transfer temperature difference between phase change heat storage material and heat recipient fluid as also keep constant as possible, therefore also can
The hot-fluid for keeping constant solidifies material exothermic, also improves the rate of heat release of material on the whole.Therefore the thought of step heat accumulation
More will be widely applied.
But, in actual applications, either whether heat-storing device is phase heat-storing device, each level of step heat reservoir
Heat-storing device completes charging process while tending not to achieve one's goal, and due to due to various environment and device etc., always occurs certain
One-level heat-storing device is filled with, the phenomenon of other heat-storing devices also underfill, and for the heat-storing device for filling with comes
Say if be also to maintain it is original heating heat it is immovable, just have 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 different due to heat accumulation temperature, in order to cost-effective,
Often use different materials during production, different material for the ability to bear of temperature be it is different, once therefore occur compared with
High-temperature heat-storage device is first full of, and lower temperature heat-storing device can be caused damage if heating-up temperature is constant, shortens heat accumulation dress
The service life put, drawbacks described above all hinder the development of step heat reservoir.
Therefore, how to improve step heat reservoir capacity usage ratio, extend heat-storing device service life, become one
Technical problem urgently to be resolved hurrily.
The content of the invention
Therefore, the technical problem to be solved in the present invention be step heat reservoir in prior art capacity usage ratio compared with
Low, heat-storing device service life is short.Thermal means and device are filled so as to provide a kind of step heat reservoir.
In view of this, the first aspect of the embodiment of the present invention fills thermal means, the ladder there is provided a kind of step heat reservoir
Level heat reservoir at least includes heater and the first heat-storing device being sequentially connected with the heater and the second heat-storing device,
Heat accumulation temperature of the heat accumulation temperature of first heat-storing device more than second heat-storing device, each described heat-storing device difference
Bypass channel is arranged in parallel, has been disconnected from heat-storing device for heat energy will be filled, methods described has included：Obtain first heat accumulation
Device fills Warm status；Judge whether first heat-storing device completes to fill heat；If first heat-storing device completes to fill heat,
Control the corresponding bypass channel of first heat-storing device to open first heat-storing device bypass；Obtain second heat accumulation
Device fills Warm status；Judge whether second heat-storing device completes to fill heat；If second heat-storing device is not completed fills heat,
Then the outlet temperature of the heater is adjusted to the first preset temperature threshold value corresponding with second heat-storing device.
Preferably, also include：Include at least one the 3rd heat-storing devices, the 3rd 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 3rd heat-storing device fills hot shape
State.
Preferably, also include：If first heat-storing device completes to fill heat, and second heat-storing device completes to fill
Heat, then control the corresponding bypass channel of second heat-storing device and open second heat-storing device bypass；Judge described
Whether three heat-storing devices complete to fill heat；If the 3rd heat-storing device is not completed fills heat, by the outlet temperature of the heater
Adjust to the second preset temperature threshold value corresponding with the 3rd heat-storing device.
Preferably, also include：If first heat-storing device is not completed fills heat, and second heat-storing device completes to fill
Heat, then control the corresponding bypass channel of second heat-storing device and open second heat-storing device bypass；Judge described
Whether three heat-storing devices complete to fill heat；If the 3rd heat-storing device is not completed fills heat, by the outlet temperature of the first heat-storing device
Degree is adjusted to the second preset temperature threshold value corresponding with the 3rd heat-storing device.
Preferably, also include：Judge whether the 3rd heat-storing device completes to fill heat；If the 3rd heat-storing device is not complete
Into heat is filled, then judge whether first heat-storing device completes to fill heat；If first heat-storing device completes to fill heat, 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
Adjust to the second preset temperature threshold value corresponding with the 3rd heat-storing device.
The second aspect of the embodiment of the present invention fills thermal, the step heat reservoir there is provided a kind of step heat reservoir
At least include heater and the first heat-storing device being sequentially connected with the heater and the second heat-storing device, first storage
Heat accumulation temperature of the heat accumulation temperature of thermal more than second heat-storing device, each described heat-storing device have been arranged in parallel respectively
Bypass channel, disconnects from heat-storing device for filling heat energy, and described device includes：First acquisition module, it is described for obtaining
First heat-storing device fills Warm status；First judge module, for judging whether first heat-storing device completes to fill heat；First
Control module, if completing to fill heat for first heat-storing device, controls the corresponding bypass channel of first heat-storing device
Open and first heat-storing device is bypassed；Second acquisition module, fills Warm status for obtain second heat-storing device；The
Two judge modules, for judging whether second heat-storing device completes to fill heat；First adjustment module, if for the described second storage
Thermal is not completed fills heat, then the outlet temperature of the heater is adjusted to corresponding with second heat-storing device first pre-
If temperature threshold.
Preferably, also include：3rd acquisition module, for including at least one the 3rd heat accumulations in the step heat reservoir
Device, when the heat accumulation temperature of the 3rd heat-storing device is less than the heat accumulation temperature of second heat-storing device, obtains the described 3rd
Heat-storing device fills Warm status.
Preferably, also include：Second control module, if completing to fill heat, and described for first heat-storing device
Two heat-storing devices complete to fill heat, then control the corresponding bypass channel of second heat-storing device and open second heat-storing device
Bypass；3rd judge module, for judging whether the 3rd heat-storing device completes to fill heat；Second adjustment module, if for institute
State the 3rd heat-storing device and do not complete and fill heat, then the outlet temperature of the heater is adjusted to corresponding with the 3rd heat-storing device
The second preset temperature threshold value.
Preferably, also include：3rd control module, if do not complete that for first heat-storing device heat is filled, and it is described
Second heat-storing device completes to fill heat, then control the corresponding bypass channel of second heat-storing device and open second heat accumulation dress
Put bypass；4th judge module, for judging whether the 3rd heat-storing device completes to fill heat；3rd adjustment module, if for
3rd heat-storing device do not complete fills heat, then by the outlet temperature of the first heat-storing device adjust to the 3rd heat-storing device
The corresponding second preset temperature threshold value.
Preferably, also include：5th judge module, for judging whether the 3rd heat-storing device completes to fill heat；6th
Judge module, if do not complete for the 3rd heat-storing device filling heat, judges whether first heat-storing device completes to fill heat；
4th control module, if completing to fill heat for first heat-storing device, controls the corresponding bypass of first heat-storing device
Passage open will first heat-storing device bypass, while by the outlet temperature of heater adjust to the 3rd heat-storing device
The corresponding second preset temperature threshold value.
Technical scheme has advantages below：
Step heat reservoir provided in an embodiment of the present invention fills thermal means and device, is stored up by obtaining first, second and third in real time
Thermal fills Warm status, is initially completed the target heat-storing device for filling heat to obtain, and then bypasses target heat-storing device, and right
The outlet temperature for not completing the upper level of the heat-storing device for filling heat is adjusted, so as to not complete the heat-storing device import temperature for filling heat
Degree in corresponding preset temperature threshold value makes the unfinished heat-storing device for filling heat continue to normally complete charging process, so realizes
Control to every one-level 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 infringement to heat-storing device is reduced, storage is extended in the case where production cost is not changed
The service life of thermal.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
Needed for embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the flow chart that the step heat reservoir of the embodiment of the present invention 1 fills thermal means；
A theory diagrams of the Fig. 2 for the step heat reservoir of the embodiment of the present invention 1.
Fig. 3 is the block diagram that the step heat reservoir of the embodiment of the present invention 2 fills thermal means device.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill
The every other embodiment obtained under the premise of creative work is not made by personnel, belongs to the scope of protection of the invention.
In describing the invention, it should be noted that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implies relative importance.
As long as additionally, the non-structure each other of technical characteristic involved in invention described below different embodiments
Can just be combined with each other into conflict.
Embodiment 1
The present embodiment provides a kind of step heat reservoir and fills thermal means, can be applicable to step heat reservoir as shown in Figure 2,
Step heat reservoir includes：The first heat-storing device that blower fan 21, heater 22, bypass channel 23 and heat accumulation temperature are reduced successively
24th, the second heat-storing device 25 and the 3rd heat-storing device 26, the heat accumulation temperature of the first heat-storing device 24 are more than the second heat-storing device 25
Heat accumulation temperature, each heat-storing device has been arranged in parallel bypass channel 23 respectively, disconnects from heat-storing device for filling heat energy,
Below by taking the step heat reservoir shown in Fig. 2 as an example describing the technical scheme of the present embodiment in detail, as shown in figure 1, the step
Heat reservoir fills thermal means and comprises the steps：
S11：Obtain the first heat-storing device 24 fills Warm status, fill herein Warm status including but not limited to：It is default to fill hot temperature
Spend threshold value and currently fill hot temperature, each heat-storing device corresponds to respective presetting respectively and fills hot temperature threshold and currently fill hot temperature
Degree, such as can determine the current of the first heat-storing device 24 by the temperature in the exit of the first heat-storing device of real-time detection 24
Fill hot temperature.
S12：Judge whether the first heat-storing device 24 completes 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, if currently fill hot temperature reach it is right
Answer it is default fill hot temperature threshold, then into step S13, otherwise return to step S11.
S13：If the first heat-storing device 24 completes to fill heat, controlling 24 corresponding bypass channel opening of the first heat-storing device will
First heat-storing device 24 is bypassed, as first heat-storing device 24 is filled with, it is not necessary to is continued by a definite date offer again and is filled heat,
Therefore associated shunt passage 23 can be controlled and open to be bypassed, so as to realize rationally using filling thermal energy.
S14：Obtain the second heat-storing device 25 fills Warm status, herein in the same manner in step S11 to the first heat-storing device 24
The acquisition of Warm status is filled, the associated description in step S11 is specifically can be found in.
S15：Judge whether the second heat-storing device 25 completes 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, if currently filling hot temperature reaches corresponding default fill
Hot temperature threshold, illustrates that the second heat-storing device 25 also completes to fill heat, then the operation principle according to the step heat reservoir, Ke Yishi
When ground close the step heat reservoir, otherwise, illustrate that the second heat-storing device 25 is underfill, then into step S16.
S16：If the second heat-storing device 25 is not completed is filled heat, as the first heat-storing device 24 has been bypassed, heater 22
In the heat 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 higher 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 too high and second heat-storing device 25 is caused damage, while improving capacity usage ratio.First is pre- herein
If temperature threshold is determined, or advance according to actual needs by the heat storage function and its production technology of the second heat-storing device 25
One temperature range of setting.Specifically, if as shown in Fig. 2 the first heat-storing device 24 is first full of, by step S13 by
After one heat-storing device 24 is bypassed, the heating power of heater 22 can be reduced, it is to avoid energy dissipation, in addition, according to step heat accumulation
The operation principle of system, the heat release stream for filling heat will be flowed out from heater 22, and the is initially entered after flowing through bypass channel 23
Two heat-storing devices 25, and temperature T2 of the now outlet of heater 22 is higher, can make the inlet temperature T7 liter of the second heat-storing device 25
Height, then can reduce T2 by the flow of increase blower fan 21, can also open cold air bypass, and then reduce the second heat accumulation dress
Temperature T7 of 25 entrances is put, and T7 is made in the first preset temperature threshold value, by the first preset temperature threshold value in such as the present embodiment
For (300 DEG C～350 DEG C), then 300 DEG C are now necessary to ensure that<T7<350 DEG C, to ensure that the second heat-storing device 25 just can continue
Normal charging process.
Above-mentioned step heat reservoir fills thermal means, fills Warm status by obtain in real time first, second and third heat-storing device, with
Acquisition is initially completed the target heat-storing device for filling heat, then bypasses target heat-storing device, and to not completing the heat accumulation for filling heat dress
The outlet temperature of the upper level put is adjusted, so as to not complete the heat-storing device inlet temperature for filling heat in corresponding preset temperature
In threshold value, make the unfinished heat-storing device for filling heat continue to normally complete charging process, so realize to every one-level 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 the infringement to heat-storing device is reduced, the service life of heat-storing device is extended in the case where production cost is not changed.
As a kind of preferred version, also include：Include at least one the 3rd heat-storing devices 26 in step heat reservoir, the 3rd
When the heat accumulation temperature of heat-storing device 26 is less than the heat accumulation temperature of the second heat-storing device 25, obtain the 3rd heat-storing device 26 fills hot shape
State.Also include：If the first heat-storing device 24 completes to fill heat, and the second heat-storing device 25 completes to fill heat, then control the second heat accumulation
25 corresponding bypass channel of device is opened and bypasses the second heat-storing device 25；Judge whether the 3rd heat-storing device 26 completes to fill heat；
If the 3rd heat-storing device 26 is not completed fills heat, the outlet temperature of heater 22 is adjusted to corresponding with the 3rd heat-storing device 26
Second preset temperature threshold value.Second preset temperature threshold value is determined by the heat storage function and its production technology of the second heat-storing device 25 herein
A fixed, or temperature range set in advance according to actual needs.Specifically, if as shown in Fig. 2 the first heat accumulation dress
Put 24 to be first full of, then proceed to judge who first completes to fill heat, judged result point for the second heat-storing device 25 and the 3rd heat-storing device 26
The following two kinds：If the 1, the second heat-storing device 25 is first full of, illustrates to there remains the 3rd heat-storing device 26 and do not complete and fill heat, now for
Avoid energy dissipation from suitably reducing the heating power of heater 22, simultaneously as 22 outlet air temperature T2 of heater compared with
Height, raises can 26 inlet temperature T9 of the 3rd heat-storing device, can continue to reduce T2 by the flow of increase blower fan 21, and beat
Cold air bypass is opened, and then reduces by 26 inlet temperature T9 of the 3rd heat-storing device, make T9 in the second preset temperature threshold value, such as originally
In embodiment, the second preset temperature threshold value is (150 DEG C～250 DEG C), then be now necessary to ensure that 150 DEG C<T9<250 DEG C, to ensure
3rd heat-storing device 26 can continue normal charging process；If the 2, the 3rd heat-storing device 26 is first full of, directly can wait
Second heat-storing device 25 continues to fill heat until being full of.According to the operation principle of step heat reservoir, the above is in three heat-storing devices
After completing charging process, heater 22 is closed, be in T2<After 50 DEG C, blower fan 21 is turned off.
As a kind of preferred version, also include：If the first heat-storing device 24 is not completed is filled heat, and the second heat-storing device 25
Complete to fill heat, then control 25 corresponding bypass channel opening of the second heat-storing device and the second heat-storing device 25 is bypassed；Judge the 3rd
Whether heat-storing device 26 completes to fill heat；If the 3rd heat-storing device 26 is not completed is filled heat, by the outlet temperature of the first heat-storing device 24
Degree adjust to 26 corresponding second preset temperature threshold value of the 3rd heat-storing device.Specifically, if as shown in Fig. 2 the second heat accumulation
Device 25 is first full of, and illustrates that there remains the first heat-storing device 24 and the 3rd heat-storing device 26 does not complete and fill heat, then by the second heat accumulation
After device 25 is bypassed, the heating power of heater 22 can be suitably reduced, it is to avoid energy dissipation, in addition, according to step heat accumulation system
The operation 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 the 3rd heat-storing device 26, and temperature T4 of the now outlet of the first heat-storing device 24 is for the 3rd heat-storing device 26
For it is higher, raise can inlet temperature T9 of the 3rd heat-storing device 26, then can open cold air bypass to reduce the 3rd storage
Temperature T9 of 26 entrance of thermal, makes T9 in the second preset temperature threshold value, by the second preset temperature in such as the present embodiment
Threshold value is (150 DEG C～250 DEG C), then be now necessary to ensure that 150 DEG C<T9<250 DEG C, to ensure that the 3rd heat-storing device 26 can be after
Continue normal charging process.
As a kind of preferred version, also include：Judge whether the 3rd heat-storing device 26 completes to fill heat；If the 3rd heat-storing device
26 do not complete fill heat, then judge whether the first heat-storing device 24 completes to fill heat；If the first heat-storing device 24 completes to fill heat, control
First heat-storing device, 24 corresponding bypass channel is opened and bypasses the first heat-storing device 24, while the outlet temperature of heater is adjusted
Save to 26 corresponding second preset temperature threshold value of the 3rd heat-storing device.Specifically, as shown in Fig. 2 in the second heat-storing device 25
After being full of, remaining first heat-storing device 24 and the 3rd heat-storing device 26 are continued to judge that who first completes to fill heat, judged result point
The following two kinds：If the 1, the first heat-storing device 24 is first full of, illustrates to there remains the 3rd heat-storing device 26 and do not complete and fill heat, then by the
One heat-storing device 24 is bypassed, now to avoid energy dissipation from suitably reducing the heating power of heater 22, meanwhile, according to ladder
The operation principle of level heat reservoir, the heat release stream for filling heat will flow out from heater 22, flow through direct after bypass channel 23
Into the 3rd heat-storing device 26, and as now 22 outlet air temperature T2 of heater is higher, enter can the 3rd heat-storing device 26
Mouth temperature T9 is raised, and can reduce T2 by the flow of increase blower fan 21, and open cold air bypass, and then reduce the 3rd storing up
26 inlet temperature T9 of thermal, makes T9 in the second preset temperature threshold value, and in such as the present embodiment, the second preset temperature threshold value is
(150 DEG C～250 DEG C), then be now necessary to ensure that 150 DEG C<T9<250 DEG C, to ensure that the 3rd heat-storing device 26 can continue normally
Charging process；If the 2, the 3rd 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.According to the operation principle of step heat reservoir, the above closes heater after three heat-storing devices complete charging process
22, be in T2<After 50 DEG C, blower fan 21 is turned off.
If it should be noted that in three heat-storing devices, the 3rd heat-storing device 26 is first full of, illustrating to there remains the first storage
Thermal 24 and the second heat-storing device 25 are not completed and fill heat, then, after bypass the 3rd heat-storing device 26, can suitably reduce heating
The heating power of device 22, it is to avoid energy dissipation, in addition, according to the operation principle of step heat reservoir, for filling the heat release stream of heat
To flow out from heater 22, may proceed to sequentially enter the first heat-storing device 24 and the second heat-storing device 25 carries out filling heat；Then
Continuation judges who first completes to fill heat for the first heat-storing device 24 and the second heat-storing device 25, and judged result is referring to step S11-S16.Root
According to the operation principle of step heat reservoir, the above closes heater 22 after three heat-storing devices complete charging process, be
T2<After 50 DEG C, blower fan 21 is turned off.
Embodiment 2
The present embodiment has supplied a kind of step heat reservoir to fill thermal, can be applicable to step heat reservoir as shown in Figure 2,
Step heat reservoir includes：The first heat-storing device that blower fan 21, heater 22, bypass channel 23 and heat accumulation temperature are reduced successively
24th, the second heat-storing device 25 and the 3rd heat-storing device 26, the heat accumulation temperature of the first heat-storing device 24 are more than the second heat-storing device 25
Heat accumulation temperature, each heat-storing device has been arranged in parallel bypass channel 23 respectively, disconnects from heat-storing device for filling heat energy,
Below by taking the step heat reservoir shown in Fig. 2 as an example describing the technical scheme of the present embodiment in detail, as shown in figure 3, the step
Heat reservoir fills thermal to be included：First, second and third acquisition module, first, second, third and fourth, five, six judge modules, first and second,
3rd, four control modules and first, second and third adjustment module, each module major function are as follows：
First acquisition module 301, fills Warm status for obtaining first heat-storing device 24；Referring specifically to right in embodiment 1
The detailed description of step S11.
First judge module 302, for judging whether the first heat-storing device 24 completes to fill heat；Referring specifically in embodiment 1
Detailed description to step S12.
First control module 303, if completing to fill heat for the first heat-storing device 24, controls 24 correspondence of the first heat-storing device
Bypass channel open the first heat-storing device 24 is bypassed；Referring specifically to the detailed description in embodiment 1 to step S13.
Second acquisition module 304, fills Warm status for obtaining second heat-storing device 25；Referring specifically to right in embodiment 1
The detailed description of step S14.
Second judge module 305, for judging whether the second heat-storing device 25 completes to fill heat；Referring specifically in embodiment 1
Detailed description to step S15.
First adjustment module 306, if do not complete for the second heat-storing device 25 filling heat, the outlet temperature of heater is adjusted
Save to 25 corresponding first preset temperature threshold value of the second heat-storing device.Referring specifically to retouching in detail to step S16 in embodiment 1
State.
As a kind of preferred version, also include：3rd acquisition module 307, for including at least one in step heat reservoir
Individual 3rd heat-storing device 26, when the heat accumulation temperature of the 3rd heat-storing device 26 is less than the heat accumulation temperature of the second heat-storing device 25, obtains
3rd heat-storing device 26 fills Warm status.Also include：Second control module 308, if completing to fill heat for the first heat-storing device 24,
And the second heat-storing device 25 completes to fill heat, then control 25 corresponding bypass channel of the second heat-storing device and open the second heat accumulation dress
Put 25 bypasses；3rd judge module 309, for judging whether the 3rd heat-storing device 26 completes to fill heat；Second adjustment module 310,
If do not complete for the 3rd heat-storing device 26 filling heat, the outlet temperature of heater is adjusted to corresponding with the 3rd heat-storing device 26
The second preset temperature threshold value.Describe in detail referring specifically to the correlation in embodiment 1.
As a kind of preferred version, also include：3rd control module 311, if do not complete for the first heat-storing device 24 filling
Heat, and the second heat-storing device 25 completes to fill heat, then control 25 corresponding bypass channel of the second heat-storing device and open the second storage
Thermal 25 is bypassed；4th judge module 312, for judging whether the 3rd heat-storing device 26 completes to fill heat；3rd adjustment module
313, if do not complete for the 3rd heat-storing device 26 filling heat, by the outlet temperature of the first heat-storing device 24 adjust to the 3rd storage
26 corresponding second preset temperature threshold value of thermal.Describe in detail referring specifically to the correlation in embodiment 1.
As a kind of preferred version, also include：5th judge module 314, it is whether complete for judging the 3rd heat-storing device 26
Into filling heat；6th judge module 315, if do not complete for the 3rd heat-storing device 26 filling heat, judges that the first heat-storing device 24 is
It is no to complete to fill heat；4th control module 316, if completing to fill heat for the first heat-storing device 24, controls the first heat-storing device 24
Corresponding bypass channel is opened and bypasses the first heat-storing device 24, at the same by the outlet temperature of heater adjust to the 3rd heat accumulation
26 corresponding second preset temperature threshold value of device.Describe in detail referring specifically to the correlation in embodiment 1.
The step heat reservoir that the present embodiment is provided fills thermal, by obtaining filling for first, second and third heat-storing device in real time
Warm status, are initially completed the target heat-storing device for filling heat to obtain, and then bypass 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 value, make the unfinished heat-storing device for filling heat continue to normally complete charging process, so realize to every one-level
The control of heat-storing device charging process, not only ensure that the reasonable utilization of heat energy, improves the energy of step heat reservoir
Utilization rate, and the infringement to heat-storing device is reduced, making for heat-storing device is extended in the case where production cost is not changed
Use the life-span.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And thus it is extended obvious change or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of step heat reservoir fills thermal means, the step heat reservoir at least include heater and with the heater
The first heat-storing device being sequentially connected and the second heat-storing device, the heat accumulation temperature of first heat-storing device is more than the described second storage
The heat accumulation temperature of thermal, each described heat-storing device have been arranged in parallel bypass channel respectively, for filling heat energy from heat accumulation
Device disconnects, it is characterised in that methods described includes：
Obtain first heat-storing device fills Warm status；
Judge whether first heat-storing device completes to fill heat；
If first heat-storing device completes to fill heat, controlling the corresponding bypass channel opening of first heat-storing device will be described
First heat-storing device is bypassed；
Obtain second heat-storing device fills Warm status；
Judge whether second heat-storing device completes to fill heat；
If second heat-storing device do not complete fill heat, by the outlet temperature of the heater adjust to second heat accumulation
The corresponding first preset temperature threshold value of device.
2. step heat reservoir according to claim 1 fills thermal means, it is characterised in that also include：
Include at least one the 3rd heat-storing devices in the step heat reservoir, the heat accumulation temperature of the 3rd heat-storing device is less than
During the heat accumulation temperature of second heat-storing device, obtain the 3rd heat-storing device fills Warm status.
3. step heat reservoir according to claim 2 fills thermal means, it is characterised in that also include：
If first heat-storing device completes to fill heat, and second heat-storing device completes to fill heat, then control second storage
The corresponding bypass channel of thermal is opened and bypasses second heat-storing device；
Judge whether the 3rd heat-storing device completes to fill heat；
If the 3rd heat-storing device do not complete fill heat, by the outlet temperature of the heater adjust to the 3rd heat accumulation
The corresponding second preset temperature threshold value of device.
4. step heat reservoir according to claim 2 fills thermal means, it is characterised in that also include：
If first heat-storing device is not completed fills heat, and second heat-storing device completes to fill heat, then control described second
The corresponding bypass channel of heat-storing device is opened and bypasses second heat-storing device；
Judge whether the 3rd heat-storing device completes to fill heat；
If the 3rd heat-storing device do not complete fill heat, by the outlet temperature of the first heat-storing device adjust to the 3rd storage
The corresponding second preset temperature threshold value of thermal.
5. step heat reservoir according to claim 4 fills thermal means, it is characterised in that also include：
Judge whether the 3rd heat-storing device completes to fill heat；
If the 3rd heat-storing device is not completed fills heat, judge whether first heat-storing device completes to fill heat；
If first heat-storing device completes to fill heat, controlling the corresponding bypass channel opening of first heat-storing device will be described
First heat-storing device bypass, while by the outlet temperature of heater adjust to the 3rd heat-storing device corresponding described second
Preset temperature threshold value.
6. a kind of step heat reservoir fills thermal, the step heat reservoir at least include heater and with the heater
The first heat-storing device being sequentially connected and the second heat-storing device, the heat accumulation temperature of first heat-storing device is more than the described second storage
The heat accumulation temperature of thermal, each described heat-storing device have been arranged in parallel bypass channel respectively, for filling heat energy from heat accumulation
Device disconnects, it is characterised in that described device includes：
First acquisition module, fills Warm status for obtain first heat-storing device；
First judge module, for judging whether first heat-storing device completes to fill heat；
First control module, if completing to fill heat for first heat-storing device, controls first heat-storing device corresponding
Bypass channel is opened and bypasses first heat-storing device；
Second acquisition module, fills Warm status for obtain second heat-storing device；
Second judge module, for judging whether second heat-storing device completes to fill heat；
First adjustment module, if do not complete for second heat-storing device filling heat, the outlet temperature of the heater is adjusted
Save to the first preset temperature threshold value corresponding with second heat-storing device.
7. step heat reservoir according to claim 6 fills thermal, it is characterised in that also include：
3rd acquisition module, for including at least one the 3rd heat-storing devices, the 3rd 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 3rd heat-storing device fills hot shape
State.
8. step heat reservoir according to claim 7 fills thermal, it is characterised in that also include：
Second control module, if complete to fill heat for first heat-storing device, and second heat-storing device completes to fill heat,
Then control the corresponding bypass channel of second heat-storing device to open second heat-storing device bypass；
3rd judge module, for judging whether the 3rd heat-storing device completes to fill heat；
Second adjustment module, if do not complete for the 3rd heat-storing device filling heat, the outlet temperature of the heater is adjusted
Save to the second preset temperature threshold value corresponding with the 3rd heat-storing device.
9. step heat reservoir according to claim 7 fills thermal, it is characterised in that also include：
3rd control module, if do not complete that for first heat-storing device heat is filled, and second heat-storing device completes to fill
Heat, then control the corresponding bypass channel of second heat-storing device and open second heat-storing device bypass；
4th judge module, for judging whether the 3rd heat-storing device completes to fill heat；
3rd adjustment module, if do not complete for the 3rd heat-storing device filling heat, by the outlet temperature of the first heat-storing device
Adjust to the second preset temperature threshold value corresponding with the 3rd heat-storing device.
10. step heat reservoir according to claim 9 fills thermal, it is characterised in that also include：
5th judge module, for judging whether the 3rd heat-storing device completes to fill heat；
Whether 6th judge module, if do not complete for the 3rd heat-storing device filling heat, judge first heat-storing device
Complete to fill heat；
4th control module, if completing to fill heat for first heat-storing device, controls first heat-storing device corresponding
Bypass channel open will first heat-storing device bypass, while by the outlet temperature of heater adjust to the 3rd heat accumulation
The corresponding second preset temperature threshold value of device.
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| CN201611102095.3A CN106595362B (en) | 2016-12-02 | 2016-12-02 | A kind of step heat reservoir fills hot method and apparatus |
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Cited By (1)
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| CN116576707A (en) * | 2023-05-19 | 2023-08-11 | 清华大学 | Design method, device, equipment, medium and system of gradient phase-change heat storage system |
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