CN203442948U - Solar energy heat supplying system - Google Patents

Solar energy heat supplying system Download PDF

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CN203442948U
CN203442948U CN201320391011.8U CN201320391011U CN203442948U CN 203442948 U CN203442948 U CN 203442948U CN 201320391011 U CN201320391011 U CN 201320391011U CN 203442948 U CN203442948 U CN 203442948U
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heat
transferring medium
solar energy
season
container
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樊建华
李富玲
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Abstract

The utility model provides a solar energy heat supplying system which comprises a solar energy heat collector. A heat supplying outlet of the solar energy heat collector is connected with a season-crossing phase-changing heat storing device and a heat supplying terminal. The season-crossing phase-changing heat storing device is connected with the heat supplying terminal. According to the solar energy heat supplying system, the phase changing and energy storing technology is adopted, the limitation of storing energy through sensible heat is broken through, the heat storing density is greatly improved and the aims of low heat loss and season-crossing energy storage are achieved. The solar energy heat supplying system is low in construction and application cost and long in service life.

Description

Solar energy heat distribution system
Technical field
The utility model relates to phase-change material energy storage heat supply process field, relates in particular to a kind of solar energy heat distribution system.
Background technology
At present, cross-season heat-storage technology mainly contains following a few class: artificial water tank water body, gravel accumulation of heat, soil thermal storage and underground reservoir accumulation of heat.Artificial water tank water body and gravel accumulation of heat have high heat capacity, good holding/latent heat releasing performance, the advantages such as stable performance, non-environmental-pollution.The mode of artificial water tank water body and gravel accumulation of heat, be by water or gravel deposit with water tank in, but water tank heat preserving engineering is difficult, cost is high, 10000m 3artificial water tank cost just up to ten million yuan.Soil thermal storage system adopts underground pipe that heat energy is saved in underground conventionally, the advantage of this technology is without artificial thermal storage equipment, cost is relatively low, but system heat loss is high, required accumulation of heat volume is large, to around ecological environment is influential, and geologic structure is had selectively, be only applicable to rock and saturation water soil environment.Utilize underground natural aqueous layer as hot water storage tank, have advantages of that cost is low, but harsh to geology environmental requirement, system operation is prone to the phenomenons such as plug well, corrosion and mould.Above cross-season heat-storage technology, due to technology or limiting factor economically, is difficult to promote.Therefore need badly development of new high-efficiency and economic across energy accumulating technique in season.
Utility model content
Provide hereinafter about brief overview of the present utility model, to the basic comprehension about some aspect of the present utility model is provided.Should be appreciated that this general introduction is not about exhaustive general introduction of the present utility model.It is not that intention is determined key of the present utility model or pith, neither be intended to limit scope of the present utility model.Its object is only that the form of simplifying provides some concept, usings this as the preorder in greater detail of discussing after a while.
The utility model provides a kind of solar energy heat distribution system, in order to solve the deficiencies in the prior art.
The utility model provides a kind of solar energy heat distribution system, comprises solar thermal collector, and the heat supply of described solar thermal collector outlet is connected with across season phase change heat accumulator and heat supply terminal, described across season phase change heat accumulator be connected with described heat supply terminal.
The such scheme that the utility model provides, has adopted phase-changing energy-storing technology, broken away from the limitation of sensible heat accumulation of energy, has reached low-loss, across the object of energy storage in season when greatly improving thermal storage density.Build, use cost is low, long service life.
Accompanying drawing explanation
With reference to the explanation to the utility model embodiment below in conjunction with accompanying drawing, can understand more easily above and other objects, features and advantages of the present utility model.Parts in accompanying drawing are just in order to illustrate principle of the present utility model.In the accompanying drawings, same or similar technical characterictic or parts will adopt same or similar Reference numeral to represent.
The solar energy heat distribution system schematic diagram that Fig. 1 provides for the utility model embodiment;
Fig. 2 for the utility model embodiment provide across season phase change heat accumulator structure chart;
A plurality of structure charts across season phase change heat accumulator connection that Fig. 3 provides for the utility model embodiment.
Description of reference numerals:
1-container;
The upper heat exchanging chamber of 2-;
3-the first heat-exchanger rig, 30-First Heat Exchanger collection union, 301-the first heat transferring medium import, 302-the first heat transferring medium outlet;
4-the second heat-exchanger rig, 40-the second heat exchanger collection union, 401-the second heat transferring medium import, 402-the second heat transferring medium outlet;
5-baffle upper plate;
6-solar thermal collector;
7-valve one;
8-valve two;
9-valve three;
10-valve five;
11-pump one;
12-expansion drum;
13-valve ten;
14-pump two;
15-valve six;
16-valve nine;
17-standby heat source;
18-heating system;
19-domestic hot-water pipeline;
20-domestic hot-water hot water storage tank;
21-valve seven;
22-valve four;
23-valve eight;
100-is across season phase change heat accumulator;
The import of 101-heat transferring medium; 102-control valve; The outlet of 103-heat transferring medium.
The specific embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.The element of describing in an accompanying drawing of the present utility model or a kind of embodiment and feature can combine with element and feature shown in one or more other accompanying drawing or embodiment.It should be noted that for purposes of clarity, in accompanying drawing and explanation, omitted and the utility model expression and description irrelevant, parts known to persons of ordinary skill in the art and processing.
The solar energy heat distribution system schematic diagram that Fig. 1 provides for the utility model embodiment.As shown in Figure 1, the solar energy heat distribution system that the utility model embodiment provides comprises solar thermal collector 6, and the heat supply of solar thermal collector 6 outlet is connected with across season phase change heat accumulator 100 and heat supply terminal, across season phase change heat accumulator 100 be connected with heat supply terminal.
The such scheme that the utility model provides, has adopted phase-changing energy-storing technology, has broken away from the limitation of sensible heat accumulation of energy, has reduced heat waste when greatly improving thermal storage density.Build, use cost is low, long service life.
Heat supply terminal comprises domestic hot-water's water system and/or heating system 18.Domestic hot-water's water system comprises domestic hot-water's hot water storage tank 20 and the domestic hot-water's pipeline 19 being connected with domestic hot-water's hot water storage tank 20.Heating system 18 comprises the heating pipeline that is connected to single household or many families, and the radiator being connected with heating pipeline.
Particularly, as a kind of optimal way, the heat supply of solar thermal collector 6 outlet is by pipeline connection valve 1.The outlet of valve 1 connects two pipelines, one of them pipeline connection valve 28, another pipeline connection valve 39.The outlet of valve 39 connects across season phase change heat accumulator 100, across season phase change heat accumulator 100 heat transferring medium outlet 103, connects three pipelines, one of them pipeline connection valve 4 22, the 5 10, three pipeline connection valve 6 15 of another pipeline connection valve.The outlet of valve 28 connects three pipelines, the outlet of one of them pipeline connection valve 4 22, the 7 21, three pipeline connection valve 8 23 of another pipeline connection valve.The outlet of valve 7 21 connects heat-exchange tube, and heat-exchange tube is positioned at domestic hot-water's hot water storage tank 20.The outlet of valve 8 23 connects three pipelines, and a pipeline is connected with heat-exchange tube, the 9 16, three pipeline connection valve 10 of another pipeline connection valve.The outlet of valve 9 16 connects heating system 18 by pipeline, and is connected with standby heat source 17 on this pipeline, and standby heat source 17 can be electric heater.The outlet of heating system 18 is connected with the inlet of solar thermal collector 6 by pipeline, and on this pipeline, connect in turn pump 2 14, pump 1.On the pipeline between pump 2 14 and pump 1, be also connected with expansion drum 12, expand to fill with 12 installation site and not exclusive be shown in legend.
The solar energy heat distribution system of said structure, different according to the ruuning situation of valve and pump, have a plurality of mode of operations, describe each mode of operation below with form.
1, solar thermal collector 6 is directly used in domestic hot-water and heating
Option A: across season phase change heat accumulator 100 do not participate in accumulation of heat
Figure BDA00003452080500041
Option b: across season phase change heat accumulator 100 participation accumulation of heats
Figure BDA00003452080500042
2, accumulation of heat pattern
Figure BDA00003452080500043
Figure BDA00003452080500051
3, across season phase change heat accumulator 100 provide domestic hot-water and heating
Figure BDA00003452080500052
4, standby heat source heating or energy storage
Note: valve two leaves as standby heat source energy storage pattern; Valve two closes as standby heat source heating pattern.
In actual use, as shown in Figure 2, across season phase change heat accumulator, comprise the container 1 of placing phase-changing energy storage material, the top of container 1 is provided with heat exchanging chamber 2, and upper heat exchanging chamber 2 connects the first heat-exchanger rig 3.
On the utility model, heat exchanging chamber is used for placing heat transferring medium, said structure across season phase change heat accumulator have advantages of that heat exchange efficiency is high.
The present embodiment is on the basis of above-described embodiment, and the below of container 1 is provided with lower heat exchanging chamber, and lower heat exchanging chamber connects the second heat-exchanger rig 4.
By the upper and lower surface at container, heat-exchanger rig is all set, reaches better heat transfer effect.
The present embodiment, on the basis of above-described embodiment, is provided with baffle upper plate 5 in upper heat exchanging chamber 2.
Optionally, in lower heat exchanging chamber, be provided with chin spoiler.
For guaranteeing phase-changing energy storage material upper and lower surface uniform heat exchange in container, avoid dead angle, improving heat exchange efficiency, in upper and lower heat exchanging chamber, be furnished with deflector, deflector forms several parallel runners, has guaranteed being uniformly distributed of heat transferring medium fluid.
The present embodiment is on the basis of above-described embodiment, the first heat-exchanger rig 3 comprises First Heat Exchanger collection union 30, First Heat Exchanger collection union 30 comprises the first heat transferring medium import 301 and the first heat transferring medium outlet 302, the first heat transferring medium import 301 is arranged on a side of container 1, and the first heat transferring medium outlet 302 is arranged on the opposite side of container 1; And/or,
The second heat-exchanger rig 4 comprises the second heat exchanger collection union 40, the second heat exchanger collection union 40 comprises the second heat transferring medium import 401 and the second heat transferring medium outlet 402, the second heat transferring medium import 401 is arranged on a side of container 1, and the second heat transferring medium outlet 402 is arranged on the opposite side of container 1.
The both sides of container are equipped with First Heat Exchanger collection union and the second heat exchanger collection union.Of the present utility model across season phase change heat accumulator by solar thermal collection system, carry out heat storage, heat transferring medium enters from a side first heat transferring medium import, flow through the first deflector of upper heat exchanging chamber, from the first heat transferring medium outlet, flow out, same, the heat transferring medium that is arranged on below enters from a side second heat transferring medium import, the second deflector of the lower heat exchanging chamber of flowing through, from the second heat transferring medium outlet, flow out, the heat energy of the phase-changing energy storage material absorption heat-exchange medium in interlayer is stored.
The present embodiment on the basis of above-described embodiment, the rectangular vessel that container 1 is horizontal positioned, and/or the height of container 1 is not more than 20 centimetres, is preferably 3-15 centimetre.Container 1 is plastic containers, ordinary steel container or rustless steel container.
For take the container that ordinary steel and stainless steel be material, the cavity inner surface of container should be avoided weld seam and impurity, if any weld seam, needs polishing, and weld is polished, and guarantees the stability of phase-changing energy storage material.
Phase-changing energy storage material of the present utility model is sodium acetate hydrate, and the water content of described sodium acetate hydrate is 40-60wt%.Water content is that the sodium acetate hydrate of 40-60wt% belongs to inorganic-phase variable energy storage material, have remarkable in season energy storage characteristic, the advantage such as also there is higher energy storage density (reaching 167 kilowatt hours per ton), stable physical property, can unlimitedly reuse.Sodium acetate hydrate is nontoxic, pollution-free, economical, easy to operate simultaneously, has the potentiality of large-scale promotion.By semiconductor excitation apparatus or carbon dioxide excitation apparatus, can initiatively excite the crystallization process of sodium acetate hydrate when needed, discharge and reclaim heat energy.
By the design of the utility model phase-changing energy storage material container and the water content of phase-changing energy storage material, control, can effectively prevent cohesion and the phenomenon of phase separation of phase-changing energy storage material, guarantee that stablizing of phase-changing energy storage material is cold, realize the energy storage steady in a long-term of phase-changing energy storage material.Adopt above-mentionedly across season phase change heat accumulator, can make sodium acetate hydrate realize disposable thawing energy storage.Phase-changing energy storage material can be in stablizing supercooled state at normal temperatures, and storage phase-change energy reaches 1 year and there will not be the phenomenon of spontaneous crystallization and phase-splitting.
As shown in Figure 3, according to the actual needs to heat energy, in solar energy heat distribution system, can comprise that at least two across season phase change heat accumulator 100, and adjacent across season phase change heat accumulator 100 connected with each other.
A plurality of across the larger storage heater of the season phase change heat accumulator 100 accumulation total heat storage capacity of formation, also can by a plurality of, across season phase change heat accumulator tiling or upper and lower stacked system, be formed by connecting according to actual conditions.Upper and lower stacked system can maximally utilise existing space.Each across season phase change heat accumulator can independently carry out energy storage and exothermic operation, so system have well can amplification, can be according to user's heat supply needs, design is across the size of season thermal storage equipment.
Preferably, each is provided with control valve 102 across season phase change heat accumulator 100 heat transferring medium import 101, also can export 103 at heat transferring medium control valve is set; Can also across season phase change heat accumulator 100 outer surface be provided with heat-insulation layer.Reduce to greatest extent sensible heat loss.As required can each across in season phase change heat accumulator or each across season phase change heat accumulator group and group between switching control pilot is set.Realize each across independent energy storage and the exothermic operation of season phase change heat accumulator, or working alone between group, also can be merged into a group, collaborative work, carries out energy storage and exothermic operation.
In solar energy abundant summer, solar thermal collector 6 can be both for heat supply terminal provides heat, also can for across season phase change heat accumulator 100 provide heat, make a part of thermal energy storage in across in season phase change heat accumulator 100, for when environment temperature is lower, winter for example, by exciting phase-changing energy storage material to discharge heat energy.For example, in the winter time, by temperature sensor, obtain the heating load of solar thermal collector, the solar energy that now solar thermal collector is collected is less, in solar heat collector to supply heat amount, (this heat can characterize by temperature, temperature height illustrates that the heat of collection is many) while being less than predetermined value, this predetermined value can be a temperature value, be for example and without limitation to 30 degree, now illustrate that the heat that solar thermal collector 6 is collected can not satisfy the demand, now cooling by Peltier effect or the carbon dioxide of semiconductor excitation apparatus, excite across phase-changing energy storage material in season phase change heat accumulator, make described phase-changing energy storage material crystallization discharge heat energy, for the heat supply of heat supply terminal.The heat energy of its release is generally 50-60 ° of C left and right.
In order be better the phase-changing energy storage material across in season phase change heat accumulator 100 to be carried out to energy storage, for example, when the difference of the temperature of the temperature in solar thermal collector 6 and phase-changing energy storage material is greater than certain value, can be just more abundant to filling of phase-changing energy storage material, just can make phase-changing energy storage material melt fully.By being arranged on the temperature sensor of solar thermal collector, obtain the heat supply temperature value of solar thermal collector, by being arranged on across the temperature sensor in season phase change heat accumulator, obtain phase-changing energy storage material temperature value, when the difference of heat supply temperature value and phase-changing energy storage material temperature value is greater than predetermined temperature value, to across season phase change heat accumulator heat supply.Predetermined temperature value can be 3-15K.Otherwise stop the heat storage to phase-changing energy storage material, or be only the heat supply of heat supply terminal.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.

Claims (4)

1. a solar energy heat distribution system, comprises solar thermal collector, it is characterized in that, the heat supply of described solar thermal collector outlet is connected with across season phase change heat accumulator and heat supply terminal, described across season phase change heat accumulator be connected with described heat supply terminal;
Described across season phase change heat accumulator comprise the container of placing phase-changing energy storage material;
The top of described container is provided with heat exchanging chamber, and described upper heat exchanging chamber connects the first heat-exchanger rig; And/or the below of described container is provided with lower heat exchanging chamber, described lower heat exchanging chamber connects the second heat-exchanger rig;
Described the first heat-exchanger rig comprises First Heat Exchanger collection union, described First Heat Exchanger collection union comprises the first heat transferring medium import and the outlet of the first heat transferring medium, described the first heat transferring medium import is arranged on a side of described container, and described the first heat transferring medium outlet is arranged on the opposite side of described container; And/or,
Described the second heat-exchanger rig comprises the second heat exchanger collection union, described the second heat exchanger collection union comprises the second heat transferring medium import and the outlet of the second heat transferring medium, described the second heat transferring medium import is arranged on a side of described container, and described the second heat transferring medium outlet is arranged on the opposite side of described container.
2. solar energy heat distribution system according to claim 1, is characterized in that, in described upper heat exchanging chamber, is provided with baffle upper plate, in described lower heat exchanging chamber, is provided with chin spoiler.
3. solar energy heat distribution system according to claim 1, is characterized in that, the rectangular vessel that described container is horizontal positioned, and/or the height of described container is 3-15 centimetre.
4. according to the arbitrary described solar energy heat distribution system of claim 1-3, it is characterized in that, described heat supply terminal comprises domestic hot-water's water system and/or heating system.
CN201320391011.8U 2013-07-02 2013-07-02 Solar energy heat supplying system Expired - Fee Related CN203442948U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279610A (en) * 2013-07-02 2015-01-14 樊建华 Solar heating system and control method thereof
CN106839047A (en) * 2017-03-30 2017-06-13 湘潭大学 A kind of solar heat-preservation formula heating and hot-water heating system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279610A (en) * 2013-07-02 2015-01-14 樊建华 Solar heating system and control method thereof
CN106839047A (en) * 2017-03-30 2017-06-13 湘潭大学 A kind of solar heat-preservation formula heating and hot-water heating system

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