CN104896773B - A kind of solar energy phase transition heat accumulation system - Google Patents
A kind of solar energy phase transition heat accumulation system Download PDFInfo
- Publication number
- CN104896773B CN104896773B CN201510380776.5A CN201510380776A CN104896773B CN 104896773 B CN104896773 B CN 104896773B CN 201510380776 A CN201510380776 A CN 201510380776A CN 104896773 B CN104896773 B CN 104896773B
- Authority
- CN
- China
- Prior art keywords
- heat
- module
- air
- accumulation
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02E10/44—Heat exchange systems
Landscapes
- Building Environments (AREA)
Abstract
A kind of solar heat-preservation system, including heat collecting module, heat exchange module, accumulation of heat module, fluid modules, described heat collecting module absorbs solar energy, then accumulation of heat module is passed to by heat exchange module, fluid modules includes fluid passage, described fluid passage and accumulation of heat module carry out heat exchange, transfer heat to the fluid in fluid passage.Solar heat can be stored by the present invention, utilizes the most again, has saved the energy, reaches the purpose of energy-conserving and environment-protective.
Description
Technical field
The invention belongs to accumulation of heat field, particularly relate to a kind of solar energy phase transition heat accumulation system.
Background technology
Along with the high speed development of modern social economy, the mankind are increasing to the demand of the energy.But the traditional energy storage levels such as coal, oil, natural gas constantly reduce, the most in short supply, cause rising steadily of price, the problem of environmental pollution that conventional fossil fuel causes simultaneously is the most serious, these development that the most significantly limit society and the raising of human life quality.Energy problem has become as one of distinct issues of contemporary world.Thus seek the new energy, the most free of contamination clean energy resource has become the focus of present people research.Solar energy is a kind of inexhaustible clean energy resource, and stock number is huge, and the solar radiant energy total amount that earth surface is received every year is 1 × 1018KW h, for more than 10,000 times of world's year consumption gross energy.Countries in the world the most utilizing as important of new energy development using solar energy, the Chinese government the most clearly proposes actively to develop new forms of energy at Report on the Work of the Government, and wherein the utilization of solar energy is especially in occupation of prominent position.Arriving tellurian energy density little (about a kilowatt every square metre) yet with solar radiation, and be again discontinuous, thus cause and have difficulties on directly utilizing, this brings certain difficulty to large-scale exploitation.Therefore, in order to extensively utilize solar energy, the invention provides new solar heat-preservation system, discontinuous solar energy is got up continuously, thus reaches Btu utilization.
China's atmosphere pollution is increasingly severe, and the bad air phenomenon such as sandstorm, haze is increasingly severe, and the city dweller of 3/4 absorbs the air less than cleaning.Simultaneously modern 80～90% time spend in indoor, the seal of modern building increases, various decorating and renovating materials, furniture and household chemicals etc. enter indoor in a large number, make indoor pollutant benzene homologues, volatile organic matter (VOC), the source of PM2.5 and kind increase.These pernicious gases retain, accumulate, and cause IAQ to deteriorate, and more increased the weight of one layer, person health is caused serious impact on the basis of outdoor air pollution.Cause leukaemia, lung cancer, nervous system, respiratory system and immune system, the generation of the diseases such as fetal congenital defect.
Ventilation is the key improving IAQ, dilutes indoor air pollutants with outdoor fresh air, makes concentration reduce.If but outdoor air severe contamination (as high in sandstorm or pellet or other pollutant levels) will avoid ventilation of directly windowing.The Per capita area of house is the biggest at present, the rate of ventilation of design generally regulation 0.3 time/hour is as fresh-air ventilation standard in winter, indoor fresh air be continuously replenished the increase that can bring air conditioning energy consumption undoubtedly, calculate according to relevant department, house total energy consumption has accounted for the 37% of whole nation energy consumption at present, and in building energy consumption, for air-conditioning, heating energy consumption in accounted for the 35% ~ 50% of building energy consumption, along with frequently occurring and duration growth of Summer and winter extreme climate, air-conditioner power consumption energy will constantly rise.
The novel high-efficiency and energy-saving solar energy system of invention, multi-layer filtrating equipment is put in import air channel, can effectively filter formaldehyde, VOC, PM2.5 dusty gas reaches more than 99.9%, total-heat exchanger, energy-storage modules etc. carry out the recycling of waste heat, after phase-change material temperature adjustment, heating, the energy that air-conditioning and hot water etc. undertake significantly reduces, phase-change material is as a kind of hot functional material that can absorb or discharge latent heat, when environment temperature is higher than phase transition temperature, phase-change material undergoes phase transition absorption heat, when environment temperature is down to below phase transition temperature, phase-change material undergoes phase transition release heat, thus reach regulating and controlling temperature and store the effect of energy, and it is prone to after phase-change material phase transformation recover in time.Result of study shows, for relatively common VMC, the tender hold over system of the sun of this patent introduction has a clear superiority in terms of energy-saving effect and comfort level, and the sustainable development to the energy is significant.
Summary of the invention
The invention provides a kind of new type solar energy hold over system, this system can reach the sustainable utilization of solar energy, and can provide high-quality pure air and/or hot water.
For achieving the above object, the technical scheme is that
A kind of solar heat-preservation system, including heat collecting module, heat exchange module, accumulation of heat module, fluid modules, described collecting system absorbs solar energy, then accumulation of heat module is passed to by heat-exchange system, fluid modules includes fluid passage, described fluid passage and accumulation of heat module carry out heat exchange, transfer heat to the fluid in fluid passage.
As preferably, described fluid passage is air intake passage and/or intake tunnel.
As preferably, also include filter, described filter is arranged in air intake passage, described filter is disposed with roughing efficiency air filter, precipitator, active carbon filter and high efficiency particulate air filter, distance between roughing efficiency air filter and precipitator is D1, distance between precipitator and active carbon filter is D2, and the distance between active carbon filter and high efficiency particulate air filter is D3, meets following relation: D1 > D2 > D3 between D1, D2, D3.
As preferably, distance between roughing efficiency air filter and precipitator is D1, distance between precipitator and active carbon filter is D2, and the distance between active carbon filter and high efficiency particulate air filter is D3, D3:D2:D1=1:(1.15-1.3): (1.20-1.4).
As preferably, energy storage module includes phase-change heat accumulation medium, described phase-change heat accumulation medium mass component includes the following: by heat storage medium paraffin 50-70 part of 18-23 carbon atom, high density polyethylene filler 10-20 part, melamine phosphate fire retardant 10-30 part, expanded graphite heat-conducting medium 5-15 part.
As preferably, heat storage medium is set to polylith, and on the flow direction of new wind, in different masses, the number of paraffin is gradually increased, and the amplitude that wherein number of paraffin increases is gradually lowered.
As preferably, the outer wall cladding insulation heat-insulation layer of accumulation of heat module, this heat-insulation layer be use 3 weight % pentane foaming agent, comprised 60-80 weight % polypropylene by extrusion molding, 5-15 weight % decabrominated dipheny ether flame retardant, 2-10 weight % polyvinyl chloride foaming stabilizer composition are made.
As preferably, fluid passage arranges bypass channel, and bypass channel arranges by-passing valve, arranges main valve on main channel, fluid passage, by main valve and the opening and closing of by-passing valve, switches flow direction so that fluid passes through or walks around hold over system.
As preferably, including controller, described fluid passage is air intake passage, and controller automatically switches flow direction according to the indoor air temperature measured；Or described fluid passage is intake tunnel, intake tunnel connects water tank, and controller automatically switches flow direction according to the temperature of water in the water tank measured.
Relative to prior art, the invention have the advantages that or advantage:
1. provide a kind of new solar heat-preservation system, it is possible to make solar energy heating utilization continuously.
2. provide a kind of solar energy and hold over system that supply air system combines, solar energy and the public accumulation of heat module of wind energy, it is achieved that compact conformation, the effect of heat focus utilization.
3. the hold over system that the present invention relates to, owing to new wind is purified by fourfold filter in filtering module and the optimization of distance between filter, available high-quality clean fresh air, the fine particle purification efficiency of right >=2.5 μm is by >=99.9%, improve the filter efficiency of VMC, and extend the service life of high efficiency particulate air filter greatly.This VMC has significant practicality and generalization in green building and green energy conservation industry.
4. realize adjusting automatically according to particle concentration size of current by control module, thus reach to save the energy.
5. the hold over system of the present invention is relative to prior art, it is to avoid air draft is connected with energy storage module, thus avoids the heat to pass to air draft, it is ensured that heat all passes to air-supply, thus is greatly saved the energy.
6. the present invention is by being coated with energy-accumulation material on the inwall or outer wall of supply air duct, can reduce the volume of energy storage module further, and the most not increase any equipment, reaches the overall clean and tidy of equipment, saves the device space.
7. provide a kind of hold over system, take full advantage of phase-change material and inhale amplification quantity latent heat and the ability being recycled for a long time, by the temperature regulation characteristic of phase-change material in heat exchanger, phase-change accumulation energy module and air supply duct, new wind and return air is made to carry out abundant heat exchange, ensure retaining of indoor heat to greatest extent, avoid unnecessary additional energy source consumption, make new air temperature more comfortable；This system heat exchange efficiency is high, pollution-free, energy-conserving and environment-protective.
8. the present invention synchronizes to exchange by supply air duct and return airway so that new wind can blow to the different position of indoor, so that room air is formed without dead angle systemic circulation, thoroughly improves IAQ.
Accompanying drawing explanation
Fig. 1 is solar heat-preservation system architecture schematic diagram of the present invention；
Fig. 2 is the embodiment that solar heat-preservation system of the present invention is combined with air inlet system；
Fig. 3 is one example structure schematic diagram of regenerative heat exchanger of the present invention；
Fig. 4 is the ventilation system setups schematic diagram of the present invention；
Fig. 5 is that the ventilation system setups of the present invention improves schematic diagram；
Fig. 6 is solar energy system and the ventilating system combination schematic diagram of invention；
Fig. 7 is solar energy system and the ventilating system combining structure schematic diagram of invention；
Fig. 8 is solar ventiduct bypass line structural representation of the present invention；
Fig. 9 is solar energy system filtering module control structure schematic diagram of the present invention.
In figure: 1, new wind air channel, 2, return airway, 3, supply air duct, 4, wind output channel, 5, filtering module, 6, heat exchanger, 7, phase-change accumulation energy module, 8, blower fan, 9, control module, 10, detection module, 11, roughing efficiency air filter, 12, precipitator, 13, active carbon filter, 14, high efficiency particulate air filter, 15, heat storage medium, 16, storage heater housing, 17, fluid intake, 18, fluid issuing, 19, triple valve；20, triple valve, 21, passage, 22, passage, 23, phase transformation heat-storage module, 24, air intake passage, 25, intake tunnel, 26, heat exchange module, 27, solar energy heat collecting module, 28, airduct by-passing valve, 29, water pipe by-passing valve, 30, heat exchange fin, 31, main valve.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the invention will be further described.
As shown in Figure 1, a kind of solar heat-preservation system, including heat collecting module 27, heat exchange module 26, accumulation of heat module 23, fluid modules, described heat collecting module 27 absorbs solar energy, then passing to accumulation of heat module 23 by heat exchange module 26, fluid modules includes fluid passage, such as the air intake passage 24 in embodiment 1 and intake tunnel 25, described fluid passage 24,25 carries out heat exchange with hold over system, transfers heat to the fluid in fluid passage.
As preferably, described heat exchange module 26 is metal heat-conducting tube, preferably heat pipe.
As preferably, accumulation of heat module 23 is phase-changing energy-storing casing.
Solar energy heat collecting module is arranged on exterior wall, and phase-change accumulation energy casing is arranged at indoor；Metal fever conduit UNICOM's solar energy heat collecting module and phase-change accumulation energy casing；Metal fever conduit quantity is at 1～10.
As preferably, as it is shown in figure 1, described fluid passage is air intake passage and/or intake tunnel.Further preferably, described air intake passage and/or intake tunnel are airduct and/or water pipe.
As preferably, described solar heat-preservation system also includes filtering module 5, described filtering module 5 is arranged between fluid modules and accumulation of heat module, for filtering inlet air, or it is arranged in fluid modules, it is preferably provided in air intake passage 24, as preferably, described filtering module 5 is disposed with roughing efficiency air filter 11, precipitator 12, active carbon filter 13 and high efficiency particulate air filter 14.
Experiment finds, distance between roughing efficiency air filter 11, precipitator 12, active carbon filter 13 and high efficiency particulate air filter 14 can not be too small, if too small, cause air intake resistance excessive, noise is excessive, simultaneously can not be excessive, excessive if VMC volume can be caused excessive, therefore, the optimal position relationship between each filter is found by great many of experiments:
Distance between roughing efficiency air filter 11 and precipitator 12 is D1, distance between precipitator 12 and active carbon filter 13 is D2, distance between active carbon filter 13 and high efficiency particulate air filter 14 is D3, meets following relation: D1 > D2 > D3 between D1, D2, D3;
Further preferably, D1-D2 < D2-D3;
Further preferably, D3:D2:D1=1:(1.15-1.3): (1.20-1.4)；
Being preferable to provide by above-mentioned, filter blast is relatively small, and noise is lower and filter effect more preferable, and volume is the most moderate.
As preferably, the distance between every two kinds of roughing efficiency air filter 11, precipitator 12, active carbon filter 13 and high efficiency particulate air filter 14 is 1cm-10cm；Distance between the most every two kinds is 2cm-5cm.
D1, D2, D3 refer to the distance in the adjacent face of two parts, and such as D1 refers to the distance in roughing efficiency air filter 11 and adjacent between precipitator 12 face.
As preferably, described primary efficient filter screen is one or more in non-woven fabrics, nylon wire, fluffy Chopped Strand Mat, plastic wire or woven wire.As preferably, primary efficient filter screen is the composite construction at least including two-layer, and in the composite construction of adjacent two layers, the direction of the skeleton structure fiber alignment of screen pack is orthogonal, is arranged by this kind, so that filter effect is up to medium air filtration.
As preferably, precipitator 12 is Double-region electrostatic dust collect plant, and first region endoparticle obtains electric charge; in Two Areas; collecting plate is disposed in second area, it is thus achieved that the particle of electric charge is trapped by collecting plate, and uses positive corona discharge to reduce ozone generation amount.
As preferably, collecting plate arranges multiple dust sheet, constitutes air flow channel between collecting plate, and the spacing of collecting plate uses 3.5-7mm, preferably 3.5-5mm.
As preferably, described active carbon filter includes the catalyst MnO that ozone can carry out catalytic decomposition2/CuO、CuO/Ni、MnO2/Pt、Fe3O4/CuO、Ag/Fe2O3、Ni/SiO2In one or more.
Preferably MnO2With CuO with activated carbon for carrier compound use by a certain percentage, wherein MnO2Consumption accounts for the consumption of 50%-80%, CuO and accounts for 20%-60%, preferred MnO2Consumption accounts for the consumption of 60%-70%, CuO and accounts for 30%-40%.In transition metal oxide, MnO2Catalysis activity more excellent, the CuO of addition serve synergy and compared with noble metal catalyst, cost is lower.
As preferably, catalyst is attached on active carbon filter screen pack through-hole structure together with activated carbon, and through-hole structure is the one in aluminium honeycomb, plastic honeycomb or paper honeycomb.The material of activated carbon is one or more in wood activated charcoal, active fruit shell carbon, coal mass active carbon, petroleum-type activated carbon, regenerated carbon mineral raw material activated carbon, it is preferred to employ the shell class activated carbon that activation method prepares.
As preferably, described high efficiency particulate air material is one or more in PP filter paper, glass fiber paper, PET filter paper.
As preferably, described solar heat-preservation system also includes that control module 9, described control module 9 are attached with precipitator 12, to be controlled precipitator 12.Such as include the size etc. of opening and closing, electricity.
As preferably, described solar heat-preservation system also includes detection module 10, and detection module 10 is for detecting the particle concentration of new wind, fine particle data are beyond arranging threshold value, it sends a signal to control module 9, now opens the electrostatic precipitator 12 in filtering module 5, increases the filtering times of new wind.When running into the preferable weather of air quality, detection module 10 receives and judges the fine particle data making new advances in wind less than arranging threshold value, and it sends a signal to control module 9, closes the electrostatic precipitator 12 in filtering module 5, reduces the consumption of electricity.
As preferably, control module 9 according to automatically adjusting the size of electric current in electrostatic precipitator 12 according to particulate count, such as when particulate count is according to becoming big, the most automatically increases electric current, when particulate count is according to the when of diminishing, the most automatically turns the size of electric current down.
Can arrange a control function in control module 9, control module automatically adjusts the size of electric current according to control function.Described control function I=F (X), wherein I is size of current, and X is particle concentration data, wherein F (X) ' > 0, F''(X) > 0, wherein F (X) ', F''(X) be F(X) first order derivative and second derivative.Above-mentioned formula shows, along with the increase of particle concentration, electric current is increasing, and the amplitude increased is the most increasing.The relation of above-mentioned formula is obtained by great many of experiments, because along with concentration increases, the electric current of needs is increasing, but electric current is not that proportional example increases with the increase of particle concentration, and the amplitude that is to increase is increasing, only in this way, just can better meet the needs of room air.
As preferably, detection module 10 is arranged on the supply air duct 3 of the air intake passage in filtering module 5 downstream, such as Fig. 4, so can directly test the particle concentration in the air entering room.
Described control module 9 is capable of adjusting automatically electric current according to particle concentration.Control mode is as follows: the when of assuming electric current I, new wind air channel particle concentration X, represents the filter effect meeting certain condition.Above-mentioned electric current I, particle concentration X reference data.Described reference data is stored in control module 9.
When particle concentration becomes x when, electric current i change is as follows:
I=I*(x/X)a, wherein a is parameter, 1.08 < a < 1.14；Preferably, a=1.11;
0.8< x/X <1.2。
By above-mentioned formula, it is possible to achieve according to the function of particle concentration Intelligent purifying air, saved electric energy.
As preferably, can input in control module 9 and organize reference data more.In the case of two groups or many group reference datas occur, it is provided that the interface of the reference data that user selects, it is preferred that system can automatically select (1-x/X)2Minimum one of value.
As preferably, described energy storage module arranges phase-change heat accumulation medium, the mass component of described heat storage medium includes the following: by heat storage medium paraffin 50-70 part of 18-23 carbon atom, high density polyethylene filler 10-20 part, melamine phosphate fire retardant 10-30 part, expanded graphite heat-conducting medium 5-15 part.
The paraffin of 18-23 carbon atom, latent heat of phase change is about 160-270KJ/Kg；Liquid paraffin is bound in the space net structure that high density polyethylene (HDPE) solidifies formation in advance, forms qualitative phase change paraffin, solves the problem that paraffin is easily revealed in engineering；Graphite has good adsorptivity and bound to paraffin, has good compatibility with paraffin, and has excellent heat conductivility, solve the problem that paraffin thermal conductivity factor is low, makes the latent heat of phase change of the qualitative phase change composite material of paraffin may be up to the 80% of paraffin refined wax latent heat.
As preferably, heat storage medium is set to polylith, and on the flow direction of new wind, in different masses, the number of paraffin is gradually increased, and the amplitude wherein increased is gradually lowered.Increased and increase the setting of ratio by the mark of paraffin, the heat storage capacity that can meet in energy storage heat exchanger gradually rises, and the amplitude raised is gradually lowered.
As preferably, described supply air duct 3 outer wall cladding insulation material, insulation material is polyurathamc, expanded polypropylene, ceramic fiber blanket or aerogel blanket.
The outer wall cladding insulation material of metal fever conduit and phase-change accumulation energy casing.
As preferably, insulation material, a kind of thickness 5～20mm heat-insulation layer, this heat-insulation layer is to use the pentane foaming agent of 3 weight %, 60-80 weight % polypropylene, 5-15 weight % decabrominated dipheny ether flame retardant, 2-10 weight % polyvinyl chloride foaming stabilizer composition to make.The apparent thermal conductivity of above-mentioned insulation material is between 0.005～0.030W/m k.
As preferably, along the flow direction of fluid, the heat storage capacity of described energy-accumulation material gradually rises.
As preferably, along the direction of fluid flowing, the amplitude that the heat storage capacity of energy-accumulation material raises is gradually lowered.
As preferably, along the flow direction of air-supply, the phase transition temperature of phase change heat storage material gradually rises.Being further used as preferably, phase change heat storage material is set to polylith, and along air-supply flow direction, the phase transition temperature of every block of phase-change material gradually rises.
As preferably, described energy-accumulation material is identical with heat storage medium above.
As preferably, heat storage medium is set to polylith, and on the flow direction of air, in different masses, the number of paraffin is gradually increased.
As preferably, on the flow direction of air, the amplitude that wherein number of paraffin increases is gradually lowered.
As preferably, as shown in Figure 8, fluid passage arranges bypass channel, by-passing valve 28,29 is set on bypass channel, main channel, fluid passage arranges main valve 31, by main valve and the opening and closing of by-passing valve, switching flow direction so that fluid passes through or walks around hold over system.
Certainly, Fig. 8 illustrate only the structural representation of air intake passage, uses identical structure for intake tunnel, is not describing in detail.
As preferably, including control module, described fluid passage is air intake passage, and control module automatically switches flow direction according to the indoor air temperature measured；Or described fluid passage is intake tunnel, intake tunnel connects water tank, and control module automatically switches flow direction according to the temperature of water in the water tank measured.
As preferably, control module can be with control bound door and the amplitude of the opening and closing of bypath valve, in order to make a part of fluid flow through bypass passageways, and in a part, fluid flows through main channel entrance accumulation of heat module heating.
Such as indoor temperature is too high, higher than setting peak, the most directly close main valve, open bypath valve, if indoor temperature is too low, less than setting minimum, then close bypath valve, opening main valve, if indoor temperature is setting between minimum and peak, then bypath valve and main valve all open certain aperture.
In like manner, above-mentioned mode is taked for utilizing the temperature of water tank to be controlled also.
Described control module can be control module 9.
Fig. 3 illustrates a kind of regenerative heat exchanger, described heat exchanger includes housing 16, heat storage medium 15, fluid passage, described heat storage medium 15 is positioned at housing 16, described fluid passage is positioned at heat storage medium 15, described fluid passage has fluid intake 17 and outlet 18, wherein along the flow direction of fluid, the heat storage capacity of described heat storage medium 15 gradually rises, the heat storage capacity of the most described regenerative heat exchanger is S, heat storage capacity S is set to the function of distance fluid intake x, i.e. S=f(x), in regenerative heat exchanger, f'(x) > 0, wherein f'(x) be f(x) first order derivative.
If fluid is high temperature fluid, because the flowing along with fluid, the temperature of fluid can be gradually reduced, the most therefore its emission capacity is gradually lowered, and be stepped up by the heat storage capacity of heat storage medium, the heat storage medium made overall accumulation of heat on fluid flow direction is uniform, it is to avoid produce the situation that accumulation of heat is uneven, thus the part affecting the internal uneven accumulation of heat caused of accumulation of heat of regenerative heat exchanger too much is easily damaged.In like manner, if fluid is cryogen, flowing along with fluid, the temperature of fluid can gradually rise, the most therefore its heat absorption capacity is gradually lowered, and be stepped up by the heat storage capacity of heat storage medium, the heat storage medium made overall heat absorption on fluid flow direction is uniform, it is to avoid produce the situation that heat absorption is uneven.
Certainly, as preferably, along the direction of fluid flowing, the amplitude that the heat storage capacity of heat storage medium raises is gradually lowered, i.e. f''(x) and < 0, wherein f''(x) be f(x) second derivative.Because along the flowing of fluid, high temperature fluid temperature can be more and more lower, by being arranged such, it is to avoid fluid temperature (F.T.) declines too fast, thus affects the uniformity of accumulation of heat.Being experimentally confirmed, in this, set-up mode makes the accumulation of heat of storage heater more uniform.
It is continually varying that above-mentioned function is not offered as the heat storage capacity of heat-storing material, actually the heat storage capacity of heat-storing material be can be discrete change.Such as, the heat-storing material that described storage heater includes includes polylith, and such as, the left and right directions along Fig. 1 arranges polylith, and the heat storage capacity that arbitrary neighborhood is two pieces is different, and along the flow direction of fluid, the heat storage capacity of adjacent two pieces gradually rises.Further preferably, the amplitude of rising is gradually lowered.This kind of situation is also included within above-mentioned function f(x) in.
As preferably, fin is set outside fluid passage, with augmentation of heat transfer.As preferably, along with the flow direction of fluid, the height of fin is gradually increased.Because along with fluid flows, fluid temperature (F.T.) constantly reduces, by the increase of fin height so that on the path of fluid flowing, the quantity of the heat radiation of unit length is essentially identical, thus reaches uniform accumulation of heat.
As preferably, along with the flow direction of fluid, the amplitude that fin increases is increasing.It is found through experiments, by so arranging so that overall accumulation of heat is more uniform.
As an improvement, as an improvement, described solar heat-preservation system can be combined with supply air system, is used in conjunction with an accumulation of heat module.
As shown in Figure 6, a kind of solar energy system and the comprehensive hold over system of supply air system, including solar energy heat collecting module 27, heat exchange module 26, accumulation of heat module 23, air-supply module, heat exchange module and return air module, described heat collecting module 27 absorbs solar energy, then accumulation of heat module 23 is passed to by heat exchange module 26
Air-supply module carries new wind, and the air in return air module conveying terminal temperature difference room is to outdoor, and new wind and air carry out heat exchange at heat exchange module, enter accumulation of heat module, then enter back into the room of terminal temperature difference after the heat of new wind absorption air.
In prior art, the system that solar energy system and supply air system isolate the most mutually, both there is the most independent heat-exchange system, and both are combined by the application by common accumulation of heat module, make both can jointly add hot-air, greatly save space, and by both combinations, heat can be concentrated in together, substantially avoid and take radiator to heat.
As preferably, filtering module 5 noted earlier is set between air-supply module and heat exchange module.
As preferably, air-supply module includes new wind air channel 1 and supply air duct 3.
As preferably, return air module includes return airway 2 and wind output channel 4.
As preferably, heat exchange module includes heat exchanger 6.
Energy-storage module arranges bypass channel, and bypass channel arranges by-passing valve, arranges main valve on the main channel of the air-supply process of energy-storage module, by main valve and the opening and closing of by-passing valve, the flow direction of switching air-supply so that fluid passes through or walks around hold over system.Concrete control mode sees the bypass channel control mode of above solar energy accumulation.
As detailed description, Fig. 4 illustrates a kind of energy-storage system arranging energy storage module, the new wind air channel 1 that including housing and is installed on housing, return airway 2, supply air duct 3, wind output channel 4, arranges heat exchanger 6, energy-storage module 7 in described housing；Described return airway 2, heat exchanger 6 connect；Described new wind air channel 1 is connected with outdoor with wind output channel 4；Described return airway 2 is connected with indoor with supply air duct 3；Described new wind air channel 1, heat exchanger 6, energy-storage module 7, supply air duct 3 connect successively.Wherein energy storage module connects solar energy heat collecting module, as shown in Figure 7.
Above-mentioned supply air system is relative to the setting that an improvement of prior art is exactly energy storage module 7.In the prior art, typically directly arranging a heat exchanger, described heat exchanger connects new wind air channel and wind output channel, thus realizes the heat exchange of new wind and air draft.Sometimes, described heat exchanger is regenerative heat exchanger.The present invention is improved by energy storage module 7 relative to one of prior art and is arranged between heat exchanger 6 and supply air duct 3.By such setting, stream between new wind air channel and air-supply passage is connected with energy storage module 7, and the stream between return airway 2 and wind output channel 4 is not connected with accumulation of heat module, and accumulation of heat module is arranged on the downstream (i.e. air-supply firstly flows through heat exchanger, again passes through accumulation of heat module) of heat exchanger.By so arranging so that after air-supply is that air draft carries out heat exchange, then enters back into energy storage module and carry out accumulation of heat.And in prior art, air draft is all connected with regenerative heat exchanger with air-supply so that drop at temperature, such as the when that indoor and outdoors temperature all declining, the heat of now regenerative heat exchanger storage can heat air draft and air-supply, so that take away a part of heat because of air draft simultaneously.The supply air system of the present invention is relative to prior art, it is to avoid air draft is connected with energy storage module, thus avoids the heat to pass to air draft, it is ensured that heat all passes to air-supply, thus is greatly saved the energy.
Setting by above-mentioned accumulation of heat module position, additionally it is possible to ensure that the heat of solar energy will not be taken away by return air module, it is ensured that the utilization of heat, it is to avoid the loss of heat.
When daytime, indoor/outdoor temperature-difference was less, new wind and air draft are simultaneously through over-heat-exchanger 6, it is achieved that the air draft temperature-compensating to new wind, and are stored by the phase-changing and temperature-regulating material in energy-storage module 7 by unnecessary heat；When night, indoor/outdoor temperature-difference was bigger, new wind and air draft realize air draft through over-heat-exchanger 6 and compensate the portion temperature of new wind, meanwhile, the heat being stored in daytime in energy-storage module 7 discharges through phase-changing and temperature-regulating material, reduce further and enter indoor new wind and the indoor temperature difference, thus avoid breaking the balance of indoor temperature as far as possible when changing wind, reduce the additional compensation of indoor temperature.
As preferably, the accumulation of heat module in solar heat-preservation system be exactly phase-changing energy-storing module 7 be same parts.Phase-changing energy-storing module is connected by heat exchange module with solar energy heat collecting module 27, transfers heat to energy storage module 7.Other features for solar heat-preservation system are identical with above record, describe the most one by one.
As preferably, energy storage module arranges phase change heat storage material.
As preferably, also include that filter, described filter are arranged between new wind air channel 1 and heat exchanger 6.
As preferably, filtering module takes filtering module 5 noted earlier.
As preferably, described energy storage module uses the structure of regenerative heat exchanger noted earlier, for example, see Fig. 3.
Energy-storage module arranges bypass channel, and bypass channel arranges by-passing valve, arranges main valve on the main channel of the air-supply process of energy-storage module, by main valve and the opening and closing of by-passing valve, the flow direction of switching air-supply so that fluid passes through or walks around hold over system.Concrete control mode sees the bypass channel control mode of above solar energy accumulation.
As another embodiment, supply air duct 3 inwall or outer wall cladding energy-accumulation material.By arranging energy-accumulation material at inwall or outer wall, the effect replacing auxiliary energy-storage module can be played.It is of course possible to serve the function of auxiliary energy-storage module accumulation of heat, thus reach power saving function.Prior art is all be separately provided energy storage heat exchanger, and the present invention is by being coated with energy-accumulation material on the inwall or outer wall of supply air duct 2, the volume of energy storage module can be reduced further, and the most do not increase any equipment, reach the overall clean and tidy of equipment, save the device space.
As preferably, heat-storing material is arranged on inwall.As preferably, heat-storing material is the projective structure from inwall.By arranging projective structure, so that enhanced heat transfer.
As preferably, by arranging projective structure so that air flowing in supply air duct is helical flow.Pass through helical flow, it is to avoid partial short-circuit in flowing, it is ensured that air is fully and energy-accumulation material contact heat-exchanging.
As preferably, the height of projective structure is more and more lower along the flow direction of air.Main purpose is the most constantly to reduce the circulation area of air, thus constantly reduces the flow velocity of air, so that air exports slowly, simultaneously as the temperature of air is more and more lower when of accumulation of heat, heat storage capacity is more and more lower, therefore reduces the volume of energy-accumulation material, it is to avoid the waste of material.
As preferably, the amplitude that projective structure height reduces along air-flow direction is more and more less.Being found through experiments, arranging in such cases can make heat storage efficiency improve 10-20%.
As preferably, energy-accumulation material is phase change heat storage material.
As preferably, metal material is used to be coated with energy-accumulation material.
As preferably, along the flow direction of air, the heat storage capacity of described energy-accumulation material gradually rises.
As preferably, along the direction of fluid flowing, the amplitude that the heat storage capacity of energy-accumulation material raises is gradually lowered.
The concrete reason arranged is identical with arranging of above heat-storing material.
As preferably, along the flow direction of air-supply, the phase transition temperature of phase change heat storage material gradually rises.Being further used as preferably, phase change heat storage material is set to polylith, and along air-supply flow direction, the phase transition temperature of every block of phase-change material gradually rises.
As preferably, described energy-accumulation material is identical with heat storage medium above.
As preferably, heat storage medium is set to polylith, and on the flow direction of air, in different masses, the number of paraffin is gradually increased.
As preferably, on the flow direction of air, the amplitude that wherein number of paraffin increases is gradually lowered.
As preferably, described supply air system also includes that room air detects equipment, and described control module adjusts air output automatically according to the data of air detection Equipment Inspection.If the air quality of detection is less than certain threshold value, then automatically turns on supply air system and blow, if the air quality of detection is higher than certain threshold value, then automatically gives and close supply air system.
Control module 9 automatically adjusts the frequency of breeze fan according to IAQ, thus adjusts air output, and such as air quality is deteriorated, and the most automatically increases blower fan frequency, when air quality improves when, the most automatically turns blower fan frequency down.
As preferably, described control module 9 can be connected by wireless communication technology with user, and user utilizes mobile phone app can know IAQ situation, and VMC carries out switching on and shutting down, regulates air quantity, selects the remotely operations such as filtered model.
Described VMC arranges two passes 21,22 between return airway 2 and supply air duct 3, wherein the communicating position (the first communicating position) of passage 21 and supply air duct 3 than passage 22 and supply air duct 3 communicating position (the second communicating position) closer to VMC housing, the position (third connecting position) that wherein passage 21 connects with return airway 2 than passage 22 and return airway 2 communicating position (the 4th communicating position) further from VMC housing.Wherein at return airway 2, supply air duct 3, passage 20, the first valve it is respectively provided with in 21, second valve, 3rd valve and the 4th valve, for opening and closing return airway 2, supply air duct 3, passage 20, 21, described new wind air channel valve arranges between the first communicating position and the second communicating position, return airway valve is arranged between third connecting position and the 4th communicating position, by the opening and closing of valve, so that the batch (-type) of supply air duct 3 and return airway 2 synchronizes to exchange, can synchronize to exchange by the new wind air port of indoor location and return air air port simultaneously, by exchanging, make new wind can blow to the different position of indoor, so that room air is formed without dead angle systemic circulation, thoroughly improve IAQ.Open the 3rd valve and the 4th valve the most simultaneously, close the first valve and the second valve, then can realize new wind air port and return air air port and synchronize to exchange.
As replacing, the first valve and the 4th valve can use triple valve 20 to replace, and the second valve and the 3rd valve can use triple valve 19 to replace.Triple valve 20 is arranged at the 4th communicating position, and triple valve 19 is arranged on the first communicating position and goes out.
As preferably, described control module 9 can control the opening and closing of air-valve, to realize the batch (-type) synchronization exchange of supply air duct 3 and return airway 2.
As preferably, in Fig. 3 embodiment, the heat-storing material of supply air duct 3 inwall and/or outer wall is arranged between housing and the first communicating position.
As preferably, it is 200～400m that the selection of new wind processes air quantity3/ h, preferably air quantity are 300m3/h。
Further preferably, arranging heat storage medium in described heat exchanger, described heat storage medium is exactly heat storage medium noted earlier.When daytime, indoor/outdoor temperature-difference was less, new wind and air draft are simultaneously through the heat exchanger 6 of overload phase-changing and temperature-regulating material, achieve the air draft temperature-compensating to new wind, and unnecessary heat is stored by the phase-changing and temperature-regulating material in heat exchanger 6, energy-storage module 7 and supply air duct 3；When night, indoor/outdoor temperature-difference was bigger, new wind and air draft realize air draft through over-heat-exchanger 6 and compensate the portion temperature of new wind, meanwhile, the heat being stored in daytime in heat exchanger 6, energy-storage module 7 and supply air duct 3 discharges through phase-changing and temperature-regulating material, reduce further and enter indoor new wind and the indoor temperature difference, thus avoid breaking the balance of indoor temperature as far as possible when changing wind, reduce the additional compensation of indoor temperature.
Although the present invention discloses as above with preferred embodiment, but the present invention is not limited to this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (6)
1. a solar heat-preservation system, including heat collecting module, heat exchange module, accumulation of heat module, fluid modules, described heat collecting module absorbs solar energy, then accumulation of heat module is passed to by heat exchange module, fluid modules includes fluid passage, described fluid passage and accumulation of heat module carry out heat exchange, transfer heat to the fluid in fluid passage；Described solar heat-preservation system also includes filter, described filter is arranged between fluid modules and accumulation of heat module or is arranged in fluid modules, described filter is disposed with roughing efficiency air filter, precipitator, active carbon filter and high efficiency particulate air filter, distance between roughing efficiency air filter and precipitator is D1, distance between precipitator and active carbon filter is D2, distance between active carbon filter and high efficiency particulate air filter is D3, meets following relation: D1 > D2 > D3 between D1, D2, D3；
D3:D2:D1=1:(1.15-1.3): (1.20-1.4)；
Accumulation of heat module includes phase-change heat accumulation medium, described phase-change heat accumulation medium mass component includes the following: by heat storage medium paraffin 50-70 part of 18-23 carbon atom, high density polyethylene filler 10-20 part, melamine phosphate fire retardant 10-30 part, expanded graphite heat-conducting medium 5-15 part.
2. solar heat-preservation system as claimed in claim 1, it is characterised in that described fluid passage is air intake passage and/or intake tunnel.
3. solar heat-preservation system as claimed in claim 1, it is characterised in that heat storage medium is set to polylith, and on the flow direction of air intake, in different masses, the number of paraffin is gradually increased, the amplitude that wherein number of paraffin increases is gradually lowered.
Solar heat-preservation system the most according to claim 1, it is characterized in that: the outer wall of accumulation of heat module cladding heat-insulation layer, this heat-insulation layer be use 3 weight % pentane foaming agent, comprised 60-80 weight % polypropylene by extrusion molding, 5-15 weight % decabrominated dipheny ether flame retardant, 2-10 weight % polyvinyl chloride foaming stabilizer composition are made.
Solar heat-preservation system the most according to claim 1, it is characterized in that: fluid passage arranges bypass channel, by-passing valve is set on bypass channel, main channel, fluid passage arranges main valve, by main valve and the opening and closing of by-passing valve, switching flow direction so that fluid passes through or walks around accumulation of heat module.
Solar heat-preservation system the most according to claim 5, it is characterised in that include that controller, described fluid passage are air intake passages, controller automatically switches flow direction according to the indoor air temperature measured；Or described fluid passage is intake tunnel, intake tunnel connects water tank, and controller automatically switches flow direction according to the temperature of water in the water tank measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510380776.5A CN104896773B (en) | 2015-07-02 | 2015-07-02 | A kind of solar energy phase transition heat accumulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510380776.5A CN104896773B (en) | 2015-07-02 | 2015-07-02 | A kind of solar energy phase transition heat accumulation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104896773A CN104896773A (en) | 2015-09-09 |
| CN104896773B true CN104896773B (en) | 2016-09-07 |
Family
ID=54029596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510380776.5A Active CN104896773B (en) | 2015-07-02 | 2015-07-02 | A kind of solar energy phase transition heat accumulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104896773B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524535A (en) * | 2015-09-14 | 2017-03-22 | 东莞前沿技术研究院 | Near space solar heat storage device |
| CN105240897B (en) * | 2015-11-03 | 2019-11-22 | 南京酷朗电子有限公司 | A kind of accumulation of heat peak adjusting device for heating system |
| CN105605661A (en) * | 2016-02-29 | 2016-05-25 | 杨斯涵 | Solar phase-change heat storage type warmer |
| KR102670606B1 (en) * | 2019-03-25 | 2024-05-29 | 후지필름 가부시키가이샤 | Heat storage composition, heat storage member, electronic device, method for producing heat storage member |
| CN110345592A (en) * | 2019-08-14 | 2019-10-18 | 佛山市顺德区意艾蒲电器有限公司 | A kind of fresh air system with kitchen benefit wind function and new blower |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420902C (en) * | 2006-07-19 | 2008-09-24 | 北京工业大学 | Full heat recovery fresh air energy-saving system of using solar phase transformation thermal storage |
| JP2008249165A (en) * | 2007-03-29 | 2008-10-16 | Matsushita Electric Ind Co Ltd | Interior humidistat |
| CN102408877B (en) * | 2011-07-12 | 2014-03-12 | 北京化工大学 | Phase-transition composite material, preparation method and application thereof |
| CN202675546U (en) * | 2012-04-26 | 2013-01-16 | 廖曙光 | Heat recovery type phase change energy storing device |
| CN103542454A (en) * | 2012-07-16 | 2014-01-29 | 李一平 | Pipe sleeved type fresh air purification machine |
| CN204963247U (en) * | 2015-07-02 | 2016-01-13 | 青岛科瑞新型环保材料有限公司 | Solar energy phase -change thermal system |
-
2015
- 2015-07-02 CN CN201510380776.5A patent/CN104896773B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104896773A (en) | 2015-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104913530B (en) | A kind of solar energy system and the comprehensive hold over system of supply air system | |
| CN104807355B (en) | A kind of supply air system that accumulator is set | |
| CN104895349B (en) | Ultralow-energy-consumption building system | |
| CN104807354B (en) | A kind of regenerative heat exchanger and the VMC of heat-storing material is set | |
| CN104896773B (en) | A kind of solar energy phase transition heat accumulation system | |
| CN204962899U (en) | Residual heat utilization system of range hood | |
| CN204963075U (en) | Heat accumulation system is used multipurposely to kitchen waste heat and air inlet system waste heat of striking sparks | |
| CN104930895B (en) | A kind of regenerative heat exchanger and there is the VMC (Ventilation Mechanical Control System) automatically controlling electrostatic precipitation | |
| CN204850535U (en) | Ultralow energy consumption building system | |
| CN204963247U (en) | Solar energy phase -change thermal system | |
| CN104879855B (en) | Heat storage heat exchanger and central ventilation system with switching air channels | |
| CN204693722U (en) | A kind of supply air system | |
| CN204853894U (en) | Stored energy material's air supply system is set up at air supply channel | |
| CN104930565B (en) | Kitchen waste heat comprehensive utilization system | |
| CN105042657B (en) | Range hood waste heat utilization system | |
| CN204084693U (en) | The air-conditioning system that solar energy heating combines with phase-transition heat-storage | |
| CN204963252U (en) | Heat accumulation system is used multipurposely to solar energy and air inlet system waste heat | |
| CN104896643B (en) | Ignition stove waste heat system and air supply system combined heat storage system | |
| CN105649198A (en) | Building energy-saving photovoltaic system | |
| CN104833254B (en) | A kind of regenerative heat exchanger and there is the VMC of filter | |
| CN204693688U (en) | A kind of VMC | |
| CN204757132U (en) | Set up filter equipment's new trend system | |
| CN204830075U (en) | System is used multipurposely to kitchen waste heat | |
| CN204830048U (en) | Kitchen heat accumulation system of striking sparks | |
| CN104990107B (en) | One kind sparking stove waste heat phase-transition heat-storage system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266112 Shandong City, Chengyang District, Qingdao, the streets of the streets of the Wangjiazhuang neighborhood of the community on the north side of the 500 meters Patentee after: Qingdao Kerui new environmental protection materials Group Co. Ltd. Address before: 266112 Shandong City, Chengyang District, Qingdao, the streets of the streets of the Wangjiazhuang neighborhood of the community on the north side of the 500 meters Patentee before: Qingdao Creek New Environmental Materials Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Solar phase change heat storage system Effective date of registration: 20191217 Granted publication date: 20160907 Pledgee: Qingdao Datong Huixin Private Capital Management Co., Ltd Pledgor: Qingdao Kerui new environmental protection materials Group Co. Ltd. Registration number: Y2019370010045 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |