CN104595966A - Solar phase-change heat storage and heating system - Google Patents
Solar phase-change heat storage and heating system Download PDFInfo
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- CN104595966A CN104595966A CN201510039865.3A CN201510039865A CN104595966A CN 104595966 A CN104595966 A CN 104595966A CN 201510039865 A CN201510039865 A CN 201510039865A CN 104595966 A CN104595966 A CN 104595966A
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- conversion device
- photothermal conversion
- phase transition
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The invention provides a solar phase-change heat storage and heating system. The solar energy is maximally utilized for the heating of families, so the clean source, solar energy, can be sufficiently utilized by common families. The solar phase-change heat storage and heating system comprises a photothermal conversion device, a phase-change heat storage module, a fan and a flow diffuser, wherein a flowing medium in the photothermal conversion device is air; a valve V1 is arranged at an outlet of the photothermal conversion device; an air inlet of the system is positioned in a room; a valve V7 is arranged at the air inlet section in the room, and is connected with an inlet of the photothermal conversion device through an air inlet pipeline; a valve V9 is arranged on the air inlet pipe at the inlet of the photothermal conversion device; the valve V1 is connected with an inlet of the fan through an air outlet pipeline; an outlet of the fan is externally connected with two branch pipelines, namely a first branch pipeline and a second branch pipeline, and the first branch pipeline is provided with the valve V3 and is connected with an inlet of the phase-change heat storage module.
Description
Technical field
The present invention relates to the technical field of using energy source, be specially a kind of solar energy phase transition heat accumulation heating system.
Background technology
The exhaustion crisis of fossil energy and the pollution problem of environment are removed to explore a kind of efficient, clean, reproducible energy in the urgent need to people and are utilized technology.Solar energy is a kind of reproducible clean energy resource, effectively utilizes solar energy to be the effective means not solving the problem such as energy scarcity, environmental pollution.But arrive the solar radiation of earth surface, energy density is lower, and by geographical, round the clock, season etc. factor impact, and the restriction of the enchancement factor such as rain or shine sexual intercourse, its radiation intensity also constantly changes, and has significant thin property, discontinuity and unstability.In order to keep the stable uninterrupted operation of heat supply or electric supply installation, just needing regenerative apparatus storage of solar energy, discharging again when solar energy deficiency, thus satisfied production and the life continuous and stable needs supplied of energy.
Along with the development of solar facilities, need solar energy to be directly used in family, by maximum for solar energy conversion in the heating of family, this clean energy resource of solar energy can be made full use of by average family.
Summary of the invention
For the problems referred to above, the invention provides a kind of solar energy phase transition heat accumulation heating system, solar energy maximal efficiency is used in the heating of family, this clean energy resource of solar energy can be made full use of by average family.
A kind of solar energy phase transition heat accumulation heating system, it is characterized in that: it comprises photothermal conversion device, phase transformation heat-storage module, blower fan, air diffuser, liquid in described photothermal conversion device is air, the outlet of described photothermal conversion device is furnished with valve V1, the air intlet source of system is positioned at indoor, the air intlet section of described indoor is furnished with valve V7, described valve V7 connects the entrance of described photothermal conversion device by admission line, the described admission line location arrangements of the porch of described photothermal conversion device has valve V9, described valve V1 connects the import of described blower fan by outlet pipe, external two branch lines of outlet of described blower fan, comprise the first branch line, second branch line, the entrance of described phase transformation heat-storage module is connected to after described first branch line mounted valve V3, be communicated to after described second branch line mounted valve V5 and be arranged in indoor described air diffuser, the pipeline of the close described air diffuser of described second branch line is furnished with auxiliary thermal source, external two branch roads of outlet of described phase transformation heat-storage module, be specially the first branch road, second branch road, described second branch line being positioned at described valve V5 rear end is connected after described first branch road mounted valve V6, after described second branch road mounted valve V4, access is positioned at valve V7, admission line between valve V9, it also comprises pilot conduits, one end of described pilot conduits is communicated to the described outlet pipe of the entrance location of described blower fan, the other end of described pilot conduits is communicated to and is positioned at valve V7, admission line between valve V9, described pilot conduits is communicated with described second branch road by admission line, the porch of described photothermal conversion device is also furnished with check valve V10, described check valve V10 is towards the inlet induction of described photothermal conversion device, described air intlet section initial position is also furnished with check valve V8, check valve V8 is vented outwardly.
It is further characterized in that:
The pipeline between auxiliary thermal source and described air diffuser of described second branch line is furnished with filter, silencer, guarantees that pure air is blown into indoor and noise is low;
Described phase transformation heat-storage module can comprise two or more phase transition heat accumulation unit, the inlet ductwork arranged in parallel of each described phase transition heat accumulation unit, general import pipe is communicated with the entrance of inlet ductwork described in every root respectively, and the end of described second branch line is communicated with described general import pipe; The export pipeline arranged in parallel of each described phase transition heat accumulation unit, general export pipe is communicated with the outlet of export pipeline described in every root respectively, and described general export pipe is communicated with the first branch road, the second branch road respectively;
Described photothermal conversion device is specially flat-plate solar heat collector;
Several flat-plate solar heat collectors can form a heat supply entirety by parallel combination.
Adopt of the present invention after, solar energy phase transition heat accumulation heating system can meet end heating demand during different solar radiation, system can be run under following 7 kinds of basic models: photothermal conversion device heating mode, photothermal conversion device heating+accumulation of heat pattern, regenerative apparatus heating mode, photothermal conversion device+auxiliary thermal source heating mode, regenerative apparatus+auxiliary thermal source heating mode, auxiliary thermal source heating mode, photothermal conversion device accumulation of heat pattern, solar energy maximal efficiency is used in the heating of family by it, this clean energy resource of solar energy can be made full use of by average family, and this system make use of the valve of order, pipeline structure, economy is high.
Accompanying drawing explanation
Fig. 1 is structural schematic block diagram of the present invention;
Fig. 2 is control model switch condition schematic diagram of the present invention;
Fig. 3 is control model switch condition schematic diagram under user's design temperature state of the present invention;
Title in figure corresponding to sequence number is as follows:
Admission line 1, outlet pipe 2, first branch line 3, second branch line 4, first branch road 5, second branch road 6, pilot conduits 7, phase transition heat accumulation unit 8, inlet ductwork 9, general import pipe 10, export pipeline 11, general export pipe 12.
Detailed description of the invention
A kind of solar energy phase transition heat accumulation heating system, see Fig. 1: it comprises photothermal conversion device, phase transformation heat-storage module, blower fan, air diffuser, liquid in photothermal conversion device is air, the outlet of photothermal conversion device is furnished with valve V1, the air intlet source of system is positioned at indoor, indoor air intlet section is furnished with valve V7, valve V7 connects the entrance of photothermal conversion device by admission line 1, the admission line location arrangements of the porch of photothermal conversion device has valve V9, valve V1 is by the import of outlet pipe 2 connecting fan, external two branch lines of outlet of blower fan, comprise the first branch line 3, second branch line 4, the entrance of phase transformation heat-storage module is connected to after first branch line 3 mounted valve V3, be communicated to after second branch line 4 mounted valve V5 and be arranged in indoor air diffuser, the pipeline of the close air diffuser of the second branch line 4 is furnished with auxiliary thermal source, external two branch roads of outlet of phase transformation heat-storage module, be specially the first branch road 5, second branch road 6, the second branch line 4 being positioned at valve V5 rear end is connected after first branch road 5 mounted valve V6, after second branch road 6 mounted valve V4, access is positioned at valve V7, admission line 1 between valve V9, it also comprises pilot conduits 7, one end of pilot conduits 7 is communicated to the outlet pipe 2 of the entrance location of blower fan, the other end of pilot conduits 7 is communicated to and is positioned at valve V7, admission line 1 between valve V9, pilot conduits 7 is communicated with the second branch road 6 by admission line 1, the porch of photothermal conversion device is also furnished with check valve V10, check valve V10 is towards the inlet induction of photothermal conversion device, air intlet section initial position is also furnished with check valve V8, check valve V8 is vented outwardly.
The pipeline between auxiliary thermal source and air diffuser of the second branch line 4 is furnished with filter, silencer;
Phase transformation heat-storage module can comprise two or more phase transition heat accumulation unit 8, inlet ductwork 9 arranged in parallel of each phase transition heat accumulation unit 8, general import pipe 10 is communicated with the entrance of every root inlet ductwork 9 respectively, and the end of the second branch line 4 is communicated with general import pipe 10; Export pipeline 11 arranged in parallel of each phase transition heat accumulation unit, general export pipe 12 is communicated with the outlet of every root export pipeline 11 respectively, and general export pipe 12 is communicated with the first branch road 5, second branch road 6 respectively;
Photothermal conversion device is specially flat-plate solar heat collector; Several flat-plate solar heat collectors can form a heat supply overall absorption solar energy by parallel combination.
After adopting native system, its basic operational mode has following 7 kinds:
1) photothermal conversion device heating mode.Valve V1, V5, V7, V9 open, fan operation, and when auxiliary thermal source is closed, the solar radiation obtained by photothermal conversion device directly sends into indoor heating;
2) photothermal conversion device heating+accumulation of heat pattern.Valve V1, V3, V6, V7, V9 open, fan operation, and when auxiliary thermal source is closed, the high-temperature hot air come by photothermal conversion device, first to phase transition heat accumulation unit accumulation of heat, is cooled to a certain degree again to indoor heating through regenerative apparatus;
3) regenerative apparatus heating mode.Open valve V2, V3, V6, V7, fan operation, when auxiliary thermal source is closed, can bear task into indoor heating by phase transition heat accumulation unit;
4) photothermal conversion device+auxiliary thermal source heating mode.Open valve V1, V5, V7, V9, open blower fan and auxiliary thermal source, and the air that photothermal conversion device comes first after auxiliary thermal source heats further, then sends into indoor;
5) regenerative apparatus+auxiliary thermal source heating mode.Open valve V2, V3, V6, V7, blower fan and auxiliary thermal source run, the air come by regenerative apparatus first through auxiliary heating source for heating to wind pushing temperature, then to indoor heating;
6) auxiliary thermal source heating mode.Valve V2, V5, V7 open, and when blower fan and auxiliary thermal source run, are all responsible for indoor heating demand by auxiliary thermal source;
7) photothermal conversion device accumulation of heat pattern.Valve V1, V3, V4, V9 open, and during fan operation, it is phase transition heat accumulation unit heat storage state that system is in solar energy heat conversion device with all strength.
Wherein the switch condition of control model, is shown in Fig. 2, the out temperature T of monitoring photothermal conversion device
in-a, T
out-a, phase transition heat accumulation unit out temperature T
in-p, T
out-p, phase transition heat accumulation unit temperature T
pcm, to indoor wind pushing temperature T
o, air flow rate V.Work as T
out-aduring >30 DEG C, solar energy heat conversion device has possessed the ability independently bearing space heating load, and system can be run by photothermal conversion device heating mode; Work as T
out-aduring >35 DEG C, illustrate that photothermal conversion device has surplus energy to phase transition heat accumulation unit accumulation of heat, system can heat by photothermal conversion device+accumulation of heat mode operation; Work as T
out-a>35 DEG C but T
in-p≤ T
out-ptime, show that intensity of solar radiation has started to weaken gradually, system is run again under photothermal conversion device heating mode; Work as T
in-a﹤ T
out-awhen≤30 DEG C, photothermal conversion device is the unable ability independently bearing space heating load, needs to switch to photothermal conversion device+auxiliary thermal source heating mode; Work as T
out-a≤ T
in-aand max (T
pcm) >35 DEG C time, illustrate that photothermal conversion device can not reoffer heat, and phase transition heat accumulation unit have the ability independently bear space heating load, system can be run by regenerative apparatus heating mode; Work as T
out-p≤ 30 DEG C and max (T
pcm) >25 DEG C, phase transition heat accumulation unit is unable independently bears space heating load, needs to open regenerative apparatus+auxiliary thermal source heating mode; As max (T
pcm)≤25 DEG C and T
out-a≤ T
in-atime, illustrate that photothermal conversion device and phase transition heat accumulation unit all can not reoffer heat, system enters auxiliary thermal source heating mode.In heating process, if there is wind pushing temperature T
othe situation of >35 DEG C, can take the method being mixed into the new wind of part.
The classification of control strategy
According to day solar radiation quantity size, solar energy phase transition heat accumulation heating system control strategy can be divided into 3 kinds.
1) fine day operating conditions strategy
The same day, solar radiation quantity was greater than 15MJ/ (m
2day), time, fine day operating mode is belonged to; Native system is under this operating mode, and photothermal conversion device can bear whole space heating load (except extreme low temperature weather).Corresponding control strategy is: in the low solar radiation time period (early morning and dusk), application phase transition heat accumulation unit or the heating of auxiliary thermal source terminad; In the high solar radiation time period (morning, high noon and afternoon), while the heating of guarantee photothermal conversion device terminad, by more than heat storage in phase transition heat accumulation unit; At night, application phase transition heat accumulation unit or auxiliary thermal source are to indoor heating.
2) cloudy weather operating conditions strategy
The same day, solar radiation quantity was between 11 ~ 15MJ/ (m
2day), time between, cloudy weather operating mode is belonged to.Under this operating mode, native system solar energy heat conversion device can bear most of space heating load.Control strategy is: in the low solar radiation time period (early morning and dusk), application phase transition heat accumulation unit or the heating of auxiliary thermal source terminad; In the middle solar radiation time period (before at 9 in the morning), with photothermal conversion device and the heating of auxiliary thermal source terminad; In the high solar radiation time period (high noon and afternoon), while the heating of guarantee photothermal conversion device terminad, by more than heat storage in phase transition heat accumulation unit; At night, application phase transition heat accumulation unit or auxiliary thermal source are to indoor heating.
3) cloudy operating conditions strategy
The same day, solar radiation quantity was lower than 11MJ/ (m
2day), time, cloudy radiation operating mode is belonged to.Native system solar energy heat conversion device under this operating mode can bear fraction space heating load.Corresponding control strategy is: in the morning and at dusk time period, application phase transition heat accumulation unit or the heating of auxiliary thermal source terminad; In other periods in the daytime, application photothermal conversion device and auxiliary thermal source are simultaneously to indoor heating; At night, heat with auxiliary thermal source.
According to existing automatic control technology, control strategy when increase indoor temperature is user's setting value, realizes indoor temperature any setting within the specific limits, and control strategy increases following two functions:
(1) indoor temperature is user setting value T
set(18 DEG C ~ 26 DEG C);
(2), when daytime, indoor did not need heating, system enters photothermal conversion device accumulation of heat pattern.
The control model switch condition of its user setting is shown in Fig. 3, and concrete conversion is as follows:
In system operation, need to monitor in real time following parameter: the out temperature T of photothermal conversion device
in-a, T
out-a, phase transition heat accumulation unit out temperature T
in-p, T
out-p, phase transition heat accumulation unit temperature T
pcm, to indoor wind pushing temperature T
o, air flow rate V.When there is no indoor heating demand, if photothermal conversion device outlet temperature T
out-ahigher than phase-change material temperature max (T
pcm), system enters photothermal conversion device accumulation of heat pattern, otherwise system does not have heat storage capacity, shuts down; When needing to indoor heating, if T
out-a>T
setwhen+8, solar energy heat conversion device has possessed the ability independently bearing space heating load, and system can be run by photothermal conversion device heating mode; Work as T
out-aduring >35 DEG C, illustrate that photothermal conversion device has surplus energy to phase transition heat accumulation unit accumulation of heat, system can heat by photothermal conversion device+accumulation of heat mode operation; Work as T
out-a>35 DEG C but T
in-p≤ T
out-ptime, show that intensity of solar radiation has started to weaken gradually, system is run again under photothermal conversion device heating mode; Work as T
in-a< T
out-a≤ T
setwhen+8 DEG C, photothermal conversion device is the unable ability independently bearing space heating load, needs to switch to photothermal conversion device+auxiliary thermal source heating mode; Work as T
out-a≤ T
in-aand max (T
pcm) >35 DEG C time, illustrate that photothermal conversion device can not reoffer heat, and phase transition heat accumulation unit have the ability independently bear space heating load, system can be run by regenerative apparatus heating mode; Work as T
set+ 3 < max (T
pcmduring)≤35, phase transition heat accumulation unit is unable independently bears space heating load, needs to open regenerative apparatus+auxiliary thermal source heating mode; As max (T
pcm)≤T
set+ 3 DEG C and T
out-a≤ T
in-atime, illustrate that photothermal conversion device and phase transition heat accumulation unit all can not reoffer heat, system enters auxiliary thermal source heating mode.In heating process, if there is wind pushing temperature T
othe situation of >35 DEG C, can take the method being mixed into the new wind of part to reduce wind pushing temperature, prevent indoor temperature wide fluctuations.
Above specific embodiments of the invention have been described in detail, but content being only the preferred embodiment of the invention, the practical range for limiting the invention can not being considered to.All equalizations done according to the invention application range change and improve, and all should still belong within this patent covering scope.
Claims (5)
1. a solar energy phase transition heat accumulation heating system, it is characterized in that: it comprises photothermal conversion device, phase transformation heat-storage module, blower fan, air diffuser, liquid in described photothermal conversion device is air, the outlet of described photothermal conversion device is furnished with valve V1, the air intlet source of system is positioned at indoor, the air intlet section of described indoor is furnished with valve V7, described valve V7 connects the entrance of described photothermal conversion device by admission line, the described admission line location arrangements of the porch of described photothermal conversion device has valve V9, described valve V1 connects the import of described blower fan by outlet pipe, external two branch lines of outlet of described blower fan, comprise the first branch line, second branch line, the entrance of described phase transformation heat-storage module is connected to after described first branch line mounted valve V3, be communicated to after described second branch line mounted valve V5 and be arranged in indoor described air diffuser, the pipeline of the close described air diffuser of described second branch line is furnished with auxiliary thermal source, external two branch roads of outlet of described phase transformation heat-storage module, be specially the first branch road, second branch road, described second branch line being positioned at described valve V5 rear end is connected after described first branch road mounted valve V6, after described second branch road mounted valve V4, access is positioned at valve V7, admission line between valve V9, it also comprises pilot conduits, one end of described pilot conduits is communicated to the described outlet pipe of the entrance location of described blower fan, the other end of described pilot conduits is communicated to and is positioned at valve V7, admission line between valve V9, described pilot conduits is communicated with described second branch road by admission line, the porch of described photothermal conversion device is also furnished with check valve V10, described check valve V10 is towards the inlet induction of described photothermal conversion device, described air intlet section initial position is also furnished with check valve V8, check valve V8 is vented outwardly.
2. a kind of solar energy phase transition heat accumulation heating system as claimed in claim 1, is characterized in that: the pipeline between auxiliary thermal source and described air diffuser of described second branch line is furnished with filter, silencer.
3. a kind of solar energy phase transition heat accumulation heating system as claimed in claim 1, it is characterized in that: described phase transformation heat-storage module can comprise two or more phase transition heat accumulation unit, the inlet ductwork arranged in parallel of each described phase transition heat accumulation unit, general import pipe is communicated with the entrance of inlet ductwork described in every root respectively, and the end of described second branch line is communicated with described general import pipe; The export pipeline arranged in parallel of each described phase transition heat accumulation unit, general export pipe is communicated with the outlet of export pipeline described in every root respectively, and described general export pipe is communicated with the first branch road, the second branch road respectively.
4. a kind of solar energy phase transition heat accumulation heating system as claimed in claim 1, is characterized in that: described photothermal conversion device is specially flat-plate solar heat collector.
5. a kind of solar energy phase transition heat accumulation heating system as claimed in claim 4, is characterized in that: several flat-plate solar heat collectors can form a heat supply entirety by parallel combination.
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| CN201510039865.3A CN104595966B (en) | 2015-01-27 | 2015-01-27 | A kind of solar energy phase transition heat accumulation heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039865.3A CN104595966B (en) | 2015-01-27 | 2015-01-27 | A kind of solar energy phase transition heat accumulation heating system |
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| Publication Number | Publication Date |
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| CN104595966A true CN104595966A (en) | 2015-05-06 |
| CN104595966B CN104595966B (en) | 2017-08-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930729A (en) * | 2015-06-26 | 2015-09-23 | 甘肃省建材科研设计院 | Solar middle temperature hot air system storing heat by means of phase-change materials |
| CN109028264A (en) * | 2018-07-11 | 2018-12-18 | 重庆大学 | A kind of closed heating system |
| CN109236591A (en) * | 2018-10-26 | 2019-01-18 | 江苏昂彼特堡能源集团有限公司 | A kind of phase-change accumulation energy system based on air circulation |
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| JP2002061961A (en) * | 2000-08-21 | 2002-02-28 | Takao Ishihara | Solar cogeneration integrated system |
| CN201547873U (en) * | 2009-11-24 | 2010-08-11 | 青岛理工大学 | Solar energy and off-peak electricity hybrid heating device based on phase change heat storage |
| CN203964413U (en) * | 2014-07-09 | 2014-11-26 | 云南华特节能环保有限公司 | A kind of solar heat-preservation heating system |
| CN204460431U (en) * | 2015-01-27 | 2015-07-08 | 苏州皇家整体住宅系统股份有限公司 | A kind of solar energy phase transition heat accumulation heating system |
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2015
- 2015-01-27 CN CN201510039865.3A patent/CN104595966B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061961A (en) * | 2000-08-21 | 2002-02-28 | Takao Ishihara | Solar cogeneration integrated system |
| CN201547873U (en) * | 2009-11-24 | 2010-08-11 | 青岛理工大学 | Solar energy and off-peak electricity hybrid heating device based on phase change heat storage |
| CN203964413U (en) * | 2014-07-09 | 2014-11-26 | 云南华特节能环保有限公司 | A kind of solar heat-preservation heating system |
| CN204460431U (en) * | 2015-01-27 | 2015-07-08 | 苏州皇家整体住宅系统股份有限公司 | A kind of solar energy phase transition heat accumulation heating system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930729A (en) * | 2015-06-26 | 2015-09-23 | 甘肃省建材科研设计院 | Solar middle temperature hot air system storing heat by means of phase-change materials |
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| CN109236591A (en) * | 2018-10-26 | 2019-01-18 | 江苏昂彼特堡能源集团有限公司 | A kind of phase-change accumulation energy system based on air circulation |
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|---|---|
| CN104595966B (en) | 2017-08-25 |
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Address after: Wuzhong District Wuzhong road in Suzhou city of Jiangsu province and the Taihu 215105 Ring Road Interchange Patentee after: SUZHOU CROWNHOMES CO., LTD. Address before: Wuzhong District Wuzhong road in Suzhou city of Jiangsu province and the Taihu 215105 Ring Road Interchange Patentee before: Suzhou Crownhomes Co., Ltd. |