CN102494416A - Natural circulation solar heat storage circulating system and manufacturing method thereof - Google Patents
Natural circulation solar heat storage circulating system and manufacturing method thereof Download PDFInfo
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- CN102494416A CN102494416A CN2011103785683A CN201110378568A CN102494416A CN 102494416 A CN102494416 A CN 102494416A CN 2011103785683 A CN2011103785683 A CN 2011103785683A CN 201110378568 A CN201110378568 A CN 201110378568A CN 102494416 A CN102494416 A CN 102494416A
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The invention relates to a natural circulation solar heat storing system, which consists of a heat preserving water tank and a solar heat collecting device connected with the heat preserving water tank, wherein the heat preserving water tank comprises a water tank inner container, a heat insulating layer sleeved outside the water tank inner container, a water tank sheath sleeved outside the heat insulating layer and at least one energy transmission control device embedded into the heat insulating layer between the water tank inner container and the water tank sheath; and the energy transmission control device is characterized in that: an inner coating sleeve has an enclosed structure; at least one buffering assembly has an enclosed structure and is arranged in the inner coating sleeve; a phase change material is arranged and enclosed in the inner coating sleeve; and an outer coating sleeve is coated in the inner coating sleeve.
Description
Technical field
The invention belongs to solar energy heat-storage system field; More specifically, relate to a kind ofly in the solar energy heat-storage system, configuration energy is transmitted the excessive heating prevention thermal insulation water tank of control device; Follow the function that temperature plays phase transformation by material in the energy transmission control device; When temperature is too high in the attemperater, transmit control device by energy the part heat is passed to outside the attemperater fast, make the solar energy heat-storage system have higher security.
Background technology
Electric heater, solar water heating system, solar-heating heating installation have come into the market for many years, and wherein, attemperater is the vitals of the said goods always.And the thermal technology of preventing of attemperater is the key technology of a research and development of products.Particularly, attemperater all is to be positioned over indoorly, so when the water temperature in the attemperater is too high, may cause the explosion of attemperater, and injures user's personal safety.
The attemperater of existing electric heater, solar water heating system, solar-heating heating installation generally all has anti-overheated Safety Design, comprising: in (1) non-pressure-bearing product to utilize the water evaporation to prevent overheated; (2) it is overheated to utilize temperature, pressure safety valve (being called for short the TP valve) discharge hot water or steam to prevent in the pressure-bearing product; (3) utilize in addition radiator dispel the heat circulation realize anti-overheated.Wherein, (1) (2) two kinds of methods need be discharged steam, except bring more inconvenience to the user, also can cause the problem of personal safety, water resource waste and fouling; And (3) though the kind method can play preferable radiating effect, system complex, and cost is higher.
Summary of the invention
In order to solve the existing excessive heating prevention thermal insulation water tank that utilizes the steam heat extraction; Need to discharge the inconvenience that steam brings to the user; And can cause the problem of water resource waste and fouling, and utilize the radiator circulation of dispelling the heat to realize anti-overheatedly, system designs too complicacy and cost problem of higher.
One of the present invention main purpose is to provide a kind of natural recirculating type solar energy heat-storage system with excessive heating prevention thermal insulation water tank; Transmit control device by the energy in the attemperater base insulating layer; Transmit the phase transition function of clad material in the control device through this energy; Partial heat energy in the attemperater of excessive temperature is shifted away, and it is overheated to prevent that by this attemperater from taking place, and makes the present invention's excessive heating prevention thermal insulation water tank have higher security.
Another main purpose of the present invention is to provide a kind of natural recirculating type solar energy heat-storage system with excessive heating prevention thermal insulation water tank; Be to use lower-cost energy to transmit control device; Transmit the phase transition function of clad material in the control device through this energy; Partial heat energy in the attemperater of excessive temperature is shifted away, and it is overheated to prevent that by this attemperater from taking place, and makes the present invention's excessive heating prevention thermal insulation water tank have lower manufacturing cost.
According to above-mentioned purpose, the present invention at first provides a kind of natural recirculating type solar energy heat-storage circulatory system, is to be made up of an attemperater and a solar energy heat collector that is connected with attemperater; Attemperater wherein; Comprise: an inner water tank; One is set in the heat-insulation layer of said inner water tank outside, and one is set in the water tank crust and the transmission of the energy at least one heat-insulation layer that is embedded between said inner water tank and the said water tank crust control device of said heat-insulation layer outside, wherein; Said energy transmits control device and is characterised in that: wrap in is an enclosed construction; At least one Buffer Unit, be an enclosed construction and be configured in said in the wrap; And a phase-change material, dispose and be closed in the said interior wrap; One outer wrap coats said interior wrap.
The present invention then provides the preparation method of a kind of natural recirculating type solar energy heat-storage system: a solar energy heat collector is provided, is made up of a plurality of thermal-arrest assemblies; One outside excessive heating prevention thermal insulation water tank is provided; It is in a side with said more than a thermal-arrest assembly be connected; And have a cooling water inlet and a hot water outlet; The excessive heating prevention thermal insulation water tank comprises an inner water tank outside said, and one is set in the heat-insulation layer of said inner water tank outside, and one is set in the water tank crust of said heat-insulation layer outside; And provide at least one energy to transmit control device, and be in the heat-insulation layer that is embedded between said inner water tank and said water tank crust, described energy transmits control device and comprises: at least one wrap is an enclosed construction; And a phase-change material, dispose and be closed in the said wrap.
Via the design of solar energy heat-storage provided by the present invention system, it is overheated to prevent that not only water tank from taking place, and also can reduce the waste of water resource and reduce design cost.
Description of drawings
The reader will become apparent various aspects of the present invention after the specific embodiment of the present invention with reference to advantages.Wherein:
Fig. 1 is an excessive heating prevention thermal insulation water tank profile of the present invention;
Fig. 2 is the heat-insulation layer profile of excessive heating prevention thermal insulation water tank of the present invention;
Fig. 3 A is that energy of the present invention transmits another configuration schematic diagram of control device;
Fig. 3 B is that energy of the present invention transmits another configuration vertical view of control device;
Fig. 4 A is that energy of the present invention transmits the control device first embodiment sketch map;
Fig. 4 B is that energy of the present invention transmits the control device second embodiment sketch map;
Fig. 5 A is that energy of the present invention transmits the control device first embodiment profile;
Fig. 5 B is that energy of the present invention transmits the control device second embodiment profile;
Fig. 6 is a kind of natural style solar energy heat-storage circulatory system of the present invention
Primary clustering symbol description in the accompanying drawing
Excessive heating prevention thermal insulation water tank 1
Cooling water inlet 13
Hot water outlet 14
Water intaking valve 1011
Circulating outlet 105
Solar energy heat collector 2
Thermal-arrest assembly 21
Heat-insulation layer 20
Energy transmits control device 40
Phase-change material 50
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.Owing to the invention discloses a kind of structure of excessive heating prevention thermal insulation water tank; Wherein employedly transmit control device and by the formed insulation material of macromolecular material etc. by the formed energy of phase-change material; Be that those of ordinary skills can understand; So, no longer these properties of materials are done complete description with explanation hereinafter.Simultaneously,, be intended to express the implication of the structure relevant, also do not need, formerly statement according to the complete drafting of actual size with characteristic of the present invention with the accompanying drawing that is hereinafter contrasted.
First embodiment: excessive heating prevention thermal insulation water tank
The present invention proposes first embodiment, please refer to Fig. 1, is excessive heating prevention thermal insulation water tank profile of the present invention.As shown in Figure 1, excessive heating prevention thermal insulation water tank 1 comprises: the heat-insulation layer 20, that an inner water tank 10, is set in said inner water tank 10 outsides is set in the water tank crust 30 of said heat-insulation layer 20 outsides; Wherein, excessive heating prevention thermal insulation water tank 1 also comprises the water intaking valve 1011 of a water inlet 101 and control inflow; The outlet valve 1031 of one delivery port 103 and control water yield; What one circulating outlet 105 and control recycled the water yield recycles water valve 1051.Wherein, inner water tank 10 can adopt enamel inner container, inner steel-plastic container, stainless steel inner container or engineering plastics etc. as material; The material of heat-insulation layer 20 can adopt polyurethane, polystyrene, rock wool or mineral wool etc.; Water tank crust 30 can adopt galvanized iron sheet, lacquered sheet iron, plastic-blasting iron sheet, stainless steel or plastics etc. as material.
Then, please refer to Fig. 2, is the heat-insulation layer profile of excessive heating prevention thermal insulation water tank of the present invention.As shown in Figure 2; In the heat-insulation layer 20 of 30 of inner water tank 10 and water tank crusts; Be embedded at least one energy and transmit control device 40; And it is to be embedded in heat-insulation layer 20 with vertical equity and compartment of terrain that each energy transmits control device 40, and contacts fully with inner water tank 10 and water tank crust 30, must keep suitable space between the two ends of the two ends of each energy transmission control device 40 and inner water tank 10 and water tank crust 30 simultaneously.Mainly be when heat-insulation layer 20 carries out the filling foaming with foam material, energy transmits the space that is kept around the control device 40 and can flow by sharp foam material, avoids blocking, to increase the heat insulation effect of heat-insulation layer.
Following, please refer to Fig. 3 A and Fig. 3 B, is that energy of the present invention transmits another configuration schematic diagram of control device, and shown in Fig. 3 A, it is to be provided with transverse horizontal and compartment of terrain that energy transmits control device 40; For another example shown in Fig. 3 B; When energy transmission control device 40 is arranged in the heat-insulation layer 20 with transverse horizontal and compartment of terrain; Its energy transmits control device 40 can form the C ring structure; Wherein must keep suitable space between the two ends of the two ends of the energy of each C ring structure transmission control device 40 and inner water tank 10 and water tank crust 30, flow, avoid blocking in order to foam material.
To stress that at this a plurality of energy transmit control device 40 its configuration modes and comprise: the compartment of terrain is vertical, parallel, oblique, crooked or interconnected etc., and the present invention does not limit configuration mode.
Then, please refer to Fig. 4 A, is that energy of the present invention transmits the control device sketch map.Shown in Fig. 4 A, energy transmits control device 40 and comprises: an outer wrap 405, be insulating materials high temperature resistant and that expansion character is high, and the present invention adopts the EPDM material of rubber material, but other insulating materials of indefinite also; Wrap 403 in one is configured in the outer wrap 405, and for having the material of thermal conductivity, the present invention adopts plastic-aluminum combined material; At least one Buffer Unit 401 is configured in the interior wrap 403; And 50 compositions of phase-change material that are covered by in the interior wrap 403.Buffer Unit 401 in the present embodiment can be a kind of inflation bar, be to seal after in each inflation bar, charging into gas, and the inflation bar also can be plastic-aluminum combined material.Be stressed that; The purpose of configuration Buffer Unit 401; Be to be transformed from the solidified state in the liquid phase transition process, work the cushioning effect that absorbs the volume increase, simultaneously Buffer Unit 401 is divided into the purpose of ring multistage shape at the phase-change material 50 that energy transmits in the control device 40; Be after phase-change material 50 becomes liquid state mutually, can increase liquid convection effects through the gap of ring shape.Clearly, the purpose that increases outer wrap 405 is that interior wrap 403 is restrained in definite shape and space, particularly in interior wrap 403 in phase-change material 50 when becoming liquid state mutually, wrap 403 in can remaining on equably.
Following, please refer to Fig. 5 A, is that energy of the present invention transmits the control device profile.Shown in Fig. 5 A; When making energy transmission control device 40; Meeting will charge into behind the gas earlier and the Buffer Unit 401 that seals is put into wrap 403; The phase-change material 50 that then will melt carries out quantitative filling, the phase-change material 50 of fusing is packed into have in the interior wrap 403 of Buffer Unit 401; Afterwards, treat to carry out vacuum-pumping and sealing after phase-change material 50 solidifies; Follow, again to its fusing that heats up, whether wrap 403 leaks material in checking again, behind the packing no problem, interior wrap 403 is put into outer wrap 405, and carries out vacuum-pumping and sealing once more, promptly accomplishes energy and transmits control device 40.The purpose of configuration Buffer Unit 401; Be to be transformed from the solidified state in the liquid phase transition process at the phase-change material 50 that energy transmits in the control device 40; Rise to absorb the cushioning effect that volume increases, also can reduce the can amount of phase-change material 50 simultaneously by the shared space of these Buffer Units 401.
The present invention's phase-change material 50 can be selected paraffin, polyethylene glycol, calcium chloride, sodium sulphate, sodium carbonate, sodium thiosulfate, sodium phosphate, potassium phosphate, magnesium nitrate, magnesium chloride, barium hydroxide hydrate, and perhaps acetamide one is a material wherein.Will stress that especially the present invention's phase-change material 50 is when solid-state, it has the characteristic of capacity of heat transmission difference, and after phase-change material 50 is met heat and reached phase transition temperature, can be liquid from solid-state phase changes promptly; After the present invention's phase-change material 50 becomes liquid state mutually, promptly have the characteristic of convection heat transfer' heat-transfer by convection, heat-transfer capability improves rapidly.So when the present invention's energy transmission control device 40 has been disposed in the heat-insulation layer 20 of excessive heating prevention thermal insulation water tank 1; And after inner water tank 10 and water tank crust 30 contact fully; When the water temperature in the excessive heating prevention thermal insulation water tank 1 is increased to the phase transition temperature of phase-change material 50 when above; Phase-change material 50 can be liquid from solid-state phase changes; Be that phase-change material 50 capable of using has the characteristic of convection heat transfer' heat-transfer by convection in liquid state, through the heat convection ability of liquid state, the energy that the part heat in the excessive heating prevention thermal insulation water tank 1 of excessive temperature is passed through inner water tank 10, phase-change material liquefy transmits control device 40 to the path of the water tank crust 30 that contacts with the atmosphere room temperature; Heat is passed in the atmosphere, reaches the effect of quick heat radiating; When the water temperature in the excessive heating prevention thermal insulation water tank 1 is reduced to the phase transition temperature of phase-change material 50 when following; 50 of the phase-change materials that energy transmits in the control device 40 can become again solid-state mutually; This moment can be through the phase-change material 50 in the energy transmission control device 40 in the characteristic of solid-state poor heat conductivity, to reach the purpose of water tank heat preserving.
With an embodiment, when selecting with paraffin as phase-change material 50, its density of paraffin is 0.9g/cm3, and thermal conductivity factor is 0.15W/m.K, and its phase transition temperature is 58 ~ 62 ℃, that is when surpassing this temperature, phase-change material 50 just can be fused into liquid state.Therefore; In the time will energy being transmitted control device 40 and is embedded in the heat-insulation layer 20 of 30 of inner water tank 10 and water tank crusts; Can earlier energy be transmitted the phase-change material 50 intensification fusings in the control device 40; Make energy transmit control device 40 flexible or deformation, so that be embedded in heat-insulation layer 20 (like above-mentioned C ring structure); The method is embedded in heat-insulation layer 20 except can conveniently energy being transmitted control device 40; Simultaneously, because energy transmits control device 40 flexible or deformation, so can contact fully with inner water tank 10 and water tank crust 30; After waiting to lower the temperature and solidifying, just accomplish configuration; Afterwards, carry out the filling of foam material again.
Excessive heating prevention thermal insulation water tank 1 with 60L (litre): use energy transmission control device 40 axially parallels of the long 450mm in four roads to be distributed in the 60L water tank; When temperature in the excessive heating prevention thermal insulation water tank 1 reaches more than 80 ℃, just can be fused into liquid by the formed phase-change material 50 of paraffin; After test and calculating, the total heat radiation power of 60L water tank is 107W; And below 60 ℃ the time, just can be frozen into solid by the formed phase-change material 50 of paraffin; After test and calculating, total heat radiation power is reduced to 32W.Clearly, energy transmission control device 40 can rise the part heat in the excessive heating prevention thermal insulation water tank 1 of excessive temperature is passed to outside the excessive heating prevention thermal insulation water tank 1 fast, reaches the function of heat radiation.When the water temperature in the excessive heating prevention thermal insulation water tank 1 is reduced to the phase transition temperature of phase-change material 50 when following; 50 of the phase-change materials that energy transmits in the control device 40 can become again solid-state mutually; This moment can be through the phase-change material 50 in the energy transmission control device 40 in the characteristic of solid-state poor heat conductivity, to reach the purpose of water tank heat preserving.
And with the excessive heating prevention thermal insulation water tank 1 of 100L (litre): use the energy of the long 650mm in four roads to transmit control device 40 axially parallels and be distributed in the 100L water tank; When temperature in the excessive heating prevention thermal insulation water tank 1 reaches more than 80 ℃, just can be fused into liquid by the formed phase-change material 50 of paraffin; After test and calculating, the total heat radiation power of 100L water tank is 180W; And below 60 ℃ the time, just can be frozen into solid by the formed phase-change material 50 of paraffin; After test and calculating, total heat radiation power is reduced to 57W.Clearly, energy transmission control device 40 can rise the part heat in the excessive heating prevention thermal insulation water tank 1 of excessive temperature is passed to outside the excessive heating prevention thermal insulation water tank 1 fast, reaches the function of heat radiation.When the water temperature in the excessive heating prevention thermal insulation water tank 1 is reduced to the phase transition temperature of phase-change material 50 when following; 50 of the phase-change materials that energy transmits in the control device 40 can become again solid-state mutually; This moment can be through the phase-change material 50 in the energy transmission control device 40 in the characteristic of solid-state poor heat conductivity, to reach the purpose of water tank heat preserving.
And with the excessive heating prevention thermal insulation water tank 1 of 150L (litre): use the energy of the long 1050mm in four roads to transmit control device 40 axially parallels and be distributed in the 150L water tank; When temperature in the excessive heating prevention thermal insulation water tank 1 reaches more than 80 ℃, just can be fused into liquid by the formed phase-change material 50 of paraffin; After test and calculating, the total heat radiation power of 150L water tank is 205W; And below 60 ℃ the time, just can be frozen into solid by the formed phase-change material 50 of paraffin; After test and calculating, total heat radiation power is reduced to 62W.Clearly, energy transmission control device 40 can rise the part heat in the excessive heating prevention thermal insulation water tank 1 of excessive temperature is passed to outside the excessive heating prevention thermal insulation water tank 1 fast, reaches the function of heat radiation.When the water temperature in the excessive heating prevention thermal insulation water tank 1 is reduced to the phase transition temperature of phase-change material 50 when following; 50 of the phase-change materials that energy transmits in the control device 40 can become again solid-state mutually; This moment can be through the phase-change material 50 in the energy transmission control device 40 in the characteristic of solid-state poor heat conductivity, to reach the purpose of water tank heat preserving.
Clearly; The present invention's excessive heating prevention thermal insulation water tank 1; Transmit control device 40 by the energy in excessive heating prevention thermal insulation water tank 1 base insulating layer 20; The phase transition function of transmitting in the control device 40 through this energy shifts away the partial heat energy in the excessive heating prevention thermal insulation water tank 1, and it is overheated to prevent that by this excessive heating prevention thermal insulation water tank 1 from taking place, and makes the present invention's excessive heating prevention thermal insulation water tank 1 have higher security.Simultaneously, the present invention's excessive heating prevention thermal insulation water tank 1 is to use the phase-change material 50 in lower-cost, also makes the present invention's excessive heating prevention thermal insulation water tank 1 have lower manufacturing cost.And the purpose of configuration Buffer Unit 401; Be to be transformed from the solidified state in the liquid phase transition process at the phase-change material 50 that energy transmits in the control device 40; Rise to absorb the cushioning effect that volume increases, also can reduce the can amount of phase-change material 50 simultaneously by the shared space of these Buffer Units 401.
Second embodiment: excessive heating prevention thermal insulation water tank
The present invention proposes second embodiment, please refer to Fig. 1, is excessive heating prevention thermal insulation water tank profile of the present invention.As shown in Figure 1, excessive heating prevention thermal insulation water tank 1 comprises: the heat-insulation layer 20, that an inner water tank 10, is set in said inner water tank 10 outsides is set in the water tank crust 30 of said heat-insulation layer 20 outsides; Wherein, excessive heating prevention thermal insulation water tank 1 also comprises the water intaking valve 1011 of a water inlet 101 and control inflow; The outlet valve 1031 of one delivery port 103 and control water yield; What one circulating outlet 105 and control recycled the water yield recycles water valve 1051.Inner water tank 10 can adopt enamel inner container, inner steel-plastic container, stainless steel inner container or engineering plastics etc. as material; The material of heat-insulation layer 20 can adopt polyurethane, polystyrene, rock wool or mineral wool etc.; Water tank crust 30 can adopt galvanized iron sheet, lacquered sheet iron, plastic-blasting iron sheet, stainless steel or plastics etc. as material.
Then, please refer to Fig. 2, is the heat-insulation layer profile of excessive heating prevention thermal insulation water tank of the present invention.As shown in Figure 2; In the heat-insulation layer 20 of 30 of inner water tank 10 and water tank crusts; Be embedded at least one energy and transmit control device 40; And it is to be embedded in heat-insulation layer 20 with vertical equity and compartment of terrain that each energy transmits control device 40, and contacts fully with inner water tank 10 and water tank crust 30, must keep suitable space between the two ends of the two ends of each energy transmission control device 40 and inner water tank 10 and water tank crust 30 simultaneously.Mainly be when heat-insulation layer 20 be to carry out filling when foaming with foam material, energy transmits the space that is kept around the control device 40 and can flow by sharp foam material, avoids blocking, to increase the heat insulation effect of heat-insulation layer.
Following, please refer to Fig. 3 A and Fig. 3 B, is that energy of the present invention transmits another configuration schematic diagram of control device.Shown in Fig. 3 A, it is to be provided with transverse horizontal and compartment of terrain that energy transmits control device 40; For another example shown in Fig. 3 B; When energy transmission control device 40 is arranged in the heat-insulation layer 20 with transverse horizontal and compartment of terrain; Its energy transmits control device 40 can form the C ring structure; Wherein must keep suitable space between the two ends of the two ends of the energy of each C ring structure transmission control device 40 and inner water tank 10 and water tank crust 30, flow, avoid blocking in order to foam material.
To stress that at this a plurality of energy transmit control device 40 its configuration modes and comprise: the compartment of terrain is vertical, parallel, oblique, crooked or interconnected etc., and the present invention does not limit configuration mode.
Then, please refer to Fig. 4 B, is that energy of the present invention transmits the control device sketch map.Shown in Fig. 4 B, energy transmits control device 40 and comprises: an outer wrap 405, be insulating materials high temperature resistant and that expansion character is high, and the present invention adopts the EPDM material of rubber material, but other insulating materials of indefinite also; Wrap 403 in one is configured in the outer wrap 405, and for having the material of thermal conductivity, the present invention adopts plastic-aluminum combined material; At least one Buffer Unit 401 is configured in the interior wrap 403; And 50 compositions of phase-change material that are covered by in the interior wrap 403.Buffer Unit 401 in the present embodiment can be a kind of inflation bar, be to seal after in each inflation bar, charging into gas, and the inflation bar also can be plastic-aluminum combined material.In addition, more can further Buffer Unit 401 be divided into ring multistage shape; Wherein charge into behind the gas and seal in each Buffer Unit 401 Buffer Unit 401 is divided into the multistage shape, but the present invention does not limit segmented mode with nylon rope 4011.Be stressed that; The purpose of configuration Buffer Unit 401; Be to be transformed from the solidified state in the liquid phase transition process, work the cushioning effect that absorbs the volume increase, simultaneously Buffer Unit 401 is divided into the purpose of ring multistage shape at the phase-change material 50 that energy transmits in the control device 40; Be after phase-change material 50 becomes liquid state mutually, can increase liquid convection effects through the gap of ring shape.
Following, please refer to Fig. 5 A, is that energy of the present invention transmits the control device profile.Shown in Fig. 5 A; When making energy transmission control device 40; Can earlier Buffer Unit 401 be put into wrap 403, the phase-change material 50 that then will melt carries out quantitative filling, the phase-change material 50 of fusing is packed into have in the interior wrap 403 of Buffer Unit 401; Afterwards, treat to carry out vacuum-pumping and sealing after phase-change material 50 solidifies; Follow, again to its fusing that heats up, whether wrap 403 leaks material in checking again, behind the packing no problem, interior wrap 403 is put into outer wrap 405, and carries out vacuum-pumping and sealing once more, promptly accomplishes energy and transmits control device 40.And the purpose that increases outer wrap 405 is that interior wrap 403 is restrained in definite shape and space; And make energy transmission control device 40 have the ability of elastic deformation; Making energy transmit control device 40 contacts tighter with inner water tank 10 and water tank crust; Particularly in interior wrap 403 in phase-change material 50 when becoming liquid state mutually, wrap 403 in can remaining on equably.
The present invention's phase-change material 50 can be selected paraffin, polyethylene glycol, calcium chloride, sodium sulphate, sodium carbonate, sodium thiosulfate, sodium phosphate, potassium phosphate, magnesium nitrate, magnesium chloride, barium hydroxide hydrate, and perhaps acetamide one is a material wherein.Will stress that especially the present invention's phase-change material 50 is when solid-state, it has the characteristic of capacity of heat transmission difference, and after phase-change material 50 is met heat and reached phase transition temperature, can be liquid from solid-state phase changes promptly; After the present invention's phase-change material 50 becomes liquid state mutually, promptly have the characteristic of convection heat transfer' heat-transfer by convection, heat-transfer capability improves rapidly.So when the present invention's energy transmission control device 40 has been disposed in the heat-insulation layer 20 of excessive heating prevention thermal insulation water tank 1; And after inner water tank 10 and water tank crust 30 contact fully; When the water temperature in the excessive heating prevention thermal insulation water tank 1 is increased to the phase transition temperature of phase-change material 50 when above; Phase-change material 50 can be liquid from solid-state phase changes; Be that phase-change material 50 capable of using has the characteristic of convection heat transfer' heat-transfer by convection in liquid state,, the part heat in the excessive heating prevention thermal insulation water tank 1 of excessive temperature transmitted control device 40 to the path of the water tank crust 30 that contacts with the atmosphere room temperature through inner water tank 10, liquid energy through the heat convection ability of liquid state; Heat is passed in the atmosphere, reaches the effect of quick heat radiating; When the water temperature in the excessive heating prevention thermal insulation water tank 1 is reduced to the phase transition temperature of phase-change material 50 when following; 50 of the phase-change materials that energy transmits in the control device 40 can become again solid-state mutually; This moment can be through the phase-change material 50 in the energy transmission control device 40 in the characteristic of solid-state poor heat conductivity, to reach the purpose of water tank heat preserving.
With an embodiment, when selecting with paraffin as phase-change material 50, its density of paraffin is 0.9g/cm3, and thermal conductivity factor is 0.15W/m.K, and its phase transition temperature is 58 ~ 62 ℃, that is when surpassing this temperature, phase-change material 50 just can be fused into liquid.Therefore; In the time will energy being transmitted control device 40 and is embedded in the heat-insulation layer 20 of 30 of inner water tank 10 and water tank crusts; Can earlier energy be transmitted the phase-change material 50 intensification fusings in the control device 40; Make energy transmit control device 40 flexible or deformation, so that be embedded in heat-insulation layer 20 (like above-mentioned C ring structure); The method is embedded in heat-insulation layer 20 except can conveniently energy being transmitted control device 40; Simultaneously, because energy transmits control device 40 flexible or deformation, so can contact fully with inner water tank 10 and water tank crust 30; And etc. cooling and solidify after, just accomplish configuration; Afterwards, carry out the filling of foam material again.
Excessive heating prevention thermal insulation water tank 1 with 60L (litre): use energy transmission control device 40 axially parallels of the long 450mm in four roads to be distributed in the 60L water tank; When temperature in the excessive heating prevention thermal insulation water tank 1 reaches more than 80 ℃, just can be fused into liquid by the formed phase-change material 50 of paraffin; After test and calculating, the total heat radiation power of 60L water tank is 107W; And below 60 ℃ the time, just can be frozen into solid by the formed phase-change material 50 of paraffin; After test and calculating, total heat radiation power is reduced to 32W.Clearly, energy transmission control device 40 can rise the part heat in the excessive heating prevention thermal insulation water tank 1 of excessive temperature is passed to outside the excessive heating prevention thermal insulation water tank 1 fast, reaches the function of heat radiation.When the water temperature in the excessive heating prevention thermal insulation water tank 1 is reduced to the phase transition temperature of phase-change material 50 when following; 50 of the phase-change materials that energy transmits in the control device 40 can become again solid-state mutually; This moment can be through the phase-change material 50 in the energy transmission control device 40 in the characteristic of solid-state poor heat conductivity, to reach the purpose of water tank heat preserving.
And with the excessive heating prevention thermal insulation water tank 1 of 100L (litre): use the energy of the long 650mm in four roads to transmit control device 40 axially parallels and be distributed in the 100L water tank; When temperature in the excessive heating prevention thermal insulation water tank 1 reaches more than 80 ℃, just can be fused into liquid by the formed phase-change material 50 of paraffin; After test and calculating, the total heat radiation power of 100L water tank is 180W; And below 60 ℃ the time, just can be frozen into solid by the formed phase-change material 50 of paraffin; After test and calculating, total heat radiation power is reduced to 57W.Clearly, energy transmission control device 40 can rise the part heat in the excessive heating prevention thermal insulation water tank 1 of excessive temperature is passed to outside the excessive heating prevention thermal insulation water tank 1 fast, reaches the function of heat radiation.When the water temperature in the excessive heating prevention thermal insulation water tank 1 is reduced to the phase transition temperature of phase-change material 50 when following; 50 of the phase-change materials that energy transmits in the control device 40 can become again solid-state mutually; This moment can be through the phase-change material 50 in the energy transmission control device 40 in the characteristic of solid-state poor heat conductivity, to reach the purpose of water tank heat preserving.
And with the excessive heating prevention thermal insulation water tank 1 of 150L (litre): use the energy of the long 1050mm in four roads to transmit control device 40 axially parallels and be distributed in the 150L water tank; When temperature in the excessive heating prevention thermal insulation water tank 1 reaches more than 80 ℃, just can be fused into liquid by the formed phase-change material 50 of paraffin; After test and calculating, the total heat radiation power of 150L water tank is 205W; And below 60 ℃ the time, just can be frozen into solid by the formed phase-change material 50 of paraffin; After test and calculating, total heat radiation power is reduced to 62W.Clearly, energy transmission control device 40 can rise the part heat in the excessive heating prevention thermal insulation water tank 1 of excessive temperature is passed to outside the excessive heating prevention thermal insulation water tank 1 fast, reaches the function of heat radiation.When the water temperature in the excessive heating prevention thermal insulation water tank 1 is reduced to the phase transition temperature of phase-change material 50 when following; 50 of the phase-change materials that energy transmits in the control device 40 can become again solid-state mutually; This moment can be through the phase-change material 50 in the energy transmission control device 40 in the characteristic of solid-state poor heat conductivity, to reach the purpose of water tank heat preserving.
Clearly; The present invention's excessive heating prevention thermal insulation water tank 1; Transmit control device 40 by the energy in excessive heating prevention thermal insulation water tank 1 base insulating layer 20; The phase transition function of transmitting the phase-change material 50 in the control device 40 through this energy shifts away the partial heat energy in the excessive heating prevention thermal insulation water tank 1, and it is overheated to prevent that by this excessive heating prevention thermal insulation water tank 1 from taking place, and makes the present invention's excessive heating prevention thermal insulation water tank 1 have higher security.Simultaneously, the present invention's excessive heating prevention thermal insulation water tank 1 is to use the phase-change material 50 in lower-cost, also makes the present invention's excessive heating prevention thermal insulation water tank 1 have lower manufacturing cost.And the purpose that increases outer wrap 405 is that interior wrap 403 is restrained in definite shape and space, when particularly the phase-change material 50 in interior wrap 403 becomes liquid state mutually, and wrap 403 in can remaining on equably.Simultaneously; In the present embodiment; The purpose of configuration Buffer Unit 401 is to be transformed from the solidified state in the liquid phase transition process at the phase-change material 50 that energy transmits in the control device 40, rises to absorb the cushioning effect that volume increases; Simultaneously also can be a little by this shared space of Buffer Unit 401, reduce the can amount of phase-change material 50.And Buffer Unit 401 is a ring multistage shape, more can increase liquid convection effects through the gap of ring shape.
The preparation method of excessive heating prevention thermal insulation water tank
Next, further disclose one of the preparation method embodiment of the present invention's excessive heating prevention thermal insulation water tank.A kind of preparation method of excessive heating prevention thermal insulation water tank, its step is following:
One inner water tank is provided, and inner water tank 10 can form the space of a capacity, and inner water tank 10 can adopt enamel inner container, inner steel-plastic container, stainless steel inner container or engineering plastics etc. as material.
One water tank crust is provided, and configuration also coats around the inner water tank 10, and forms a space in inner water tank 10 and 30 of water tank crusts; And water tank crust 30 can adopt galvanized iron sheet, lacquered sheet iron, plastic-blasting iron sheet, stainless steel or plastics etc. as material.
Provide at least one energy to transmit control device 40, each energy transmits control device 40 and has a thickness, and this energy thickness of transmitting control device 40 is greater than the space of 30 of inner water tank 10 and water tank crusts; Therefore; When energy transmits control device 40 and will be embedded in the space of 30 of inner water tank 10 and water tank crusts; Need with energy transmit in the control device 40 phase-change material 50 heating earlier and by solid-state change liquid state into after; Each energy is transmitted control device 40 to be embedded in the space of 30 of inner water tank 10 and water tank crusts; Wherein, it can be that vertical equity and compartment of terrain are embedded in the space of 30 of inner water tank 10 and water tank crusts that each energy transmits control device 40, or horizontal and compartment of terrain is arranged in the heat-insulation layer 20 with the C ring structure; Simultaneously, must keep suitable space between the two ends of the two ends of each energy transmission control device 40 and inner water tank 10 and water tank crust 30.Because liquid can have bigger alteration of form, make energy transmit control device 40 and can fully be attached between inner water tank 10 and the water tank crust 30, and contact with inner water tank 10 and water tank crust 30.In addition, all keep suitable space between the two ends of transmitting control device 40 because of each energy and the two ends of inner water tank 10 and water tank crust 30,, avoid obstruction so favourable foam material is mobile.And energy transmits the purpose that control device 40 must contact with inner water tank 10 and water tank crust 30, then is in order to let heat energy conducted to outside the water tank crust 30 by inner water tank 10, therefore must to be in contact with one another.
Inject a foam material between inner water tank 10 and water tank crust 30.Be that a foam material is injected between inner water tank 10 and the water tank crust 30; Make foam material to transmit the space that is kept around the control device 40 and fill the space between inner water tank 10 and the water tank crust 30 by energy; Just transmit control device 40 with energy and form heat-insulation layer 20, the material of foam material can adopt polyurethane, polystyrene, rock wool or mineral wool etc.
Next, disclose another embodiment of preparation method of the present invention's excessive heating prevention thermal insulation water tank again.A kind of preparation method of excessive heating prevention thermal insulation water tank, its step is following:
One inner water tank is provided, and inner water tank 10 can form the space of a capacity, and inner water tank 10 can adopt enamel inner container, inner steel-plastic container, stainless steel inner container or engineering plastics etc. as material.
Provide at least one energy to transmit control device 40, each energy transmits control device 40 and has a thickness; Then; Each energy is transmitted control device 40 to be disposed at outside the inner water tank 10 on the wall; And it is to be embedded on inner water tank 10 with vertical equity and compartment of terrain that each energy transmits control device 40; Simultaneously, must keep suitable space between the two ends of the two ends of each energy transmission control device 40 and inner water tank 10.
One water tank crust is provided, around its configuration and coating inner water tank 10, and in inner water tank 10 and 30 formation of water tank crust, one space; And water tank crust 30 can adopt galvanized iron sheet, lacquered sheet iron, plastic-blasting iron sheet, stainless steel or plastics etc. as material.
Inject a foam material between inner water tank 10 and water tank crust 30.Be that a foam material is injected between inner water tank 10 and the water tank crust 30; Make foam material to transmit the space that is kept around the control device 40 and fill the space between inner water tank 10 and the water tank crust 30 by energy; Just transmit control device 40 with energy and form heat-insulation layer 20, the material of foam material can adopt polyurethane, polystyrene, rock wool or mineral wool etc.
Because the thickness that the present invention's energy transmits control device 40 is greater than the space of 30 of inner water tank 10 and water tank crusts; Therefore, after energy transmits control device 40 and is embedded in inner water tank 10 and water tank crust 30, can fully be attached between inner water tank 10 and the water tank crust 30 and and contact with inner water tank 10 and water tank crust 30.In addition, all keep suitable space between the two ends of transmitting control device 40 because of each energy and the two ends of inner water tank 10 and water tank crust 30,, avoid obstruction so favourable foam material is mobile.And energy transmits the purpose that control device 40 must contact with inner water tank 10 and water tank crust 30, then is in order to let heat energy conducted to outside the water tank crust 30 by inner water tank 10, therefore must to be in contact with one another.
Energy transmits the preparation method of control device
Next, the present invention further discloses one of the preparation method embodiment that energy transmits control device.
A kind of energy transmits the preparation method of control device, and its step is following:
At least one Buffer Unit 401 is provided, and is placed in the interior wrap 403; And the material of this Buffer Unit 401 can adopt plastic-aluminum combined material; These Buffer Units 401 can rise and absorb the cushioning effect that phase-change material 50 is transformed from the solidified state into generation volume increase in the liquid process.
One phase-change material 50 is provided, with 50 heating of this phase-change material and make its by solid-state change into liquid state after, again that this is liquid phase-change material 50 is with in the wrap 403 in a certain amount of the pouring into, and each Buffer Unit 401 is coated in the liquid phase-change material 50.Buffer Unit 401 in the present embodiment can be a kind of inflation bar, be to seal after in each inflation bar, charging into gas, and the inflation bar also can be plastic-aluminum combined material.
One outer wrap 405 is provided, coats the interior wrap 403 of having sealed; Outer wrap 405 is an insulating materials high temperature resistant and that expansion character is high, and the present invention adopts the EPDM material of rubber material.
In addition, the present invention also can further prick at least one nylon rope 4011 on each Buffer Unit 401, makes can form a plurality of spaced ring shapes on each Buffer Unit 401; For example: use the nylon rope 4011 of 15 ~ 20cm that each Buffer Unit 401 is bundled into the ring shape; The said outer wrap 405 of vacuum-pumping and sealing is shown in Fig. 5 A or 5B.
Moreover; For avoiding energy to transmit between solid-state phase-change material 50 and the interior wrap 403 in the control device 40 the air existence is arranged; And make solid-state and liquid transmittance process, in interior wrap 403, form too much bubble, and cause energy to transmit the phenomenon of the usefulness reduction of control device 40; Therefore; In the preferable embodiment of one of the present invention; Be before wrap 403 is sealed in carrying out, the step that vacuumizes is earlier promptly sealed after vacuumizing again; To guarantee that energy transmits phase-change material 50 in the control device 40 in solid-state and liquid transmittance process, can not form too much bubble in interior wrap 403.
The 3rd embodiment: the natural style solar energy heat-storage circulatory system
Please refer to Fig. 6, is a kind of natural style solar energy heat-storage circulatory system of the present invention.As shown in Figure 6, natural recirculating type solar energy heat-storage systems is made up of an attemperater 1 and 2 of solar energy heat collectors; Wherein: the thermal-arrest assembly 21 in the solar energy heat collector 2 can be a kind of glass type solar vacuum tube; After solar energy heat collector 2 that attemperater 1 and a plurality of thermal-arrest assemblies 21 are formed is connected; After solar energy heat collector 2 converts the thermal radiation of solar energy to heat energy; Make the hot water that flows out each thermal-arrest assembly 21 first half to do heat exchange, and then reach effect the water heating in the attemperater 1 with the cold water in the heat storage water tank 1; Again since the hot water of heating back rises naturally because of self buoyancy, then decline naturally of the cold water of heating, when fluid natural carry out hot and cold convection current, the current that can make inside in current and the vacuum tube of attemperater 1 inside are Natural Circulation repeatedly; Wherein, the cold water in the attemperater 1 is got into by cooling water inlet 13, and the hot water after heat exchange is seen attemperater 1 off by hot water outlet 14, uses hot water for the user.
In the preferred embodiment of the present invention's natural recirculating type solar energy heat-storage system; Described attemperater 1 is a kind of attemperater with anti-overheated function; This attemperater 1 comprises: an inner water tank; A heat-insulation layer that is set in the inner water tank outside, a water tank crust that is set in the heat-insulation layer outside, and at least one energy that is embedded between heat-insulation layer and water tank crust transmits 40 formation of control device; And the structure of each energy transmission control device 40 comprises at least: an outer wrap; An interior wrap, it is an enclosed construction and is configured in the outer wrap; One phase-change material disposes and is closed in the interior wrap; In addition, the present invention is at least one inflation bar of configuration in the interior wrap of energy transmission control device 40 further, and the inflation bar can be contacted with phase-change material.Clearly, energy transmits the manufacturing and the configuration mode of control device 40, is with aforementioned to state the said structure of first embodiment and second implementation identical, so no longer give unnecessary details.
Then, the attemperater of the anti-overheated function of having of the present invention is used when the natural recirculating type solar energy heat-storage system, after solar energy heat collector 2 converts the thermal radiation of solar energy to heat energy, make water in the attemperater 1 by heating constantly.When temperature in the attemperater 1 reaches more than 80 ℃, (for example: paraffin) just can be fused into liquid then be arranged in phase-change material 50 that energy transmits control device 40; Embodiment according to aforementioned is said, and energy transmits control device 40 and can temperature too high in the excessive heating prevention thermal insulation water tank 1 be passed to outside the excessive heating prevention thermal insulation water tank 1, reaches the function of heat radiation.When the water temperature in the excessive heating prevention thermal insulation water tank 1 is reduced to the phase transition temperature of phase-change material 50 when following; 50 of the phase-change materials that energy transmits in the control device 40 can become again solid-state mutually; This moment can be through the phase-change material 50 in the energy transmission control device 40 in the characteristic of solid-state poor heat conductivity, to reach the purpose of water tank heat preserving.
Follow again; Needs based on the user; The present invention's natural recirculating type solar energy heat-storage system is positioned over outdoor external insulation water tank 1, a solar energy heat collector 2 that is connected with outdoor attemperater 1 by one; And one be positioned over indoor internal insulation water tank (not being shown among the figure) and form, and the internal insulation water tank is to be connected with the hot water outlet 14 of external insulation water tank 1 via pipeline, makes the internal insulation water tank can have the function of insulation.And at another embodiment of the present invention's natural recirculating type solar energy heat-storage system; It can select the internal insulation water tank is also formed the attemperater with anti-overheated function; And form the mode that this has the attemperater of anti-overheated function; Also be in the internal insulation water tank, to add at least one energy to transmit control device 40; Make when the water temperature in the internal insulation water tank is lower than below 60 ℃; (for example: paraffin) just can be in solid-state state, (for example: paraffin) heat transfer effect when solid-state is poor, so can reach the purpose of water tank heat preserving because energy transmits phase-change material 50 in the control device 40 then to be arranged in the phase-change material 50 that energy transmits control device 40; And if use in the process of hot water the user; When the water temperature that gets into the internal insulation water tank too high and make the energy in the internal insulation water tank transmit the phase-change material 50 of control device 40 (for example: paraffin) be fused into liquid after; This energy transmission control device 40 can rise temperature too high in the excessive heating prevention thermal insulation water tank 1 is passed to outside the excessive heating prevention thermal insulation water tank 1, reaches the function of heat radiation; So can increase user's safety.
The preparation method of the natural style solar energy heat-storage circulatory system
Next, the present invention further discloses the embodiment of the making of the natural style solar energy heat-storage circulatory system.
The preparation method of natural recirculating type solar energy heat-storage system, its step is following:
At first, a solar energy heat collector 2 is provided, forms by 21 of a plurality of thermal-arrest assemblies;
Then; An outside excessive heating prevention thermal insulation water tank 1 is provided; It is to be connected with a plurality of thermal-arrest assemblies 21 in a side of outside excessive heating prevention thermal insulation water tank, and has a cooling water inlet 13 and a hot water outlet 14, and wherein outside excessive heating prevention thermal insulation water tank 1 comprises an inner water tank 10; 20, one of a heat-insulation layer that are set in inner water tank 10 outsides is set in the water tank crust 30 of heat-insulation layer 20 outsides; And
Providing at least one energy to transmit control device 40, is in the heat-insulation layer 20 that is embedded between inner water tank 10 and water tank crust 30, and energy transmission control device comprises:
At least one wrap 403 is an enclosed construction; And
One phase-change material disposes and is closed in the wrap 403.
To stress at this; The preparation method of the aforementioned excessive heating prevention thermal insulation water tank that discloses of the present invention and energy transmit the preparation method of control device; All can use in first aforementioned embodiment to the second embodiment, so the preparation method of the natural style solar energy heat-storage circulatory system no longer repeats to give unnecessary details.
The above is merely preferred embodiment of the present invention, is not in order to limit the interest field of application of the present invention; Simultaneously above description should be understood for those of ordinary skills and implement, so other does not break away from the equivalence of being accomplished under the disclosed spirit and change or modify, and all should be contained in the scope of claims.
Claims (10)
1. natural recirculating type solar energy heat-storage system; Comprise: a solar energy heat collector; System is made up of a plurality of thermal-arrest assemblies, an excessive heating prevention thermal insulation water tank, its be in a side with said more than a thermal-arrest assembly be connected; And have a cooling water inlet and a hot water outlet, being characterised in that of the wherein said natural recirculating type solar energy heat-storage circulatory system:
Dispose at least one energy in the said excessive heating prevention thermal insulation water tank and transmit control device, this energy transmits control device and comprises:
One wrap is an enclosed construction; And
One phase-change material disposes and is closed in the said wrap.
2. solar energy heat-storage according to claim 1 system; It is characterized in that; Described phase-change material is by selecting in the combination: paraffin, polyethylene glycol; Calcium chloride, sodium sulphate, sodium carbonate, sodium thiosulfate, sodium phosphate, potassium phosphate, magnesium nitrate, magnesium chloride, barium hydroxide hydrate, perhaps acetamide.
3. solar energy heat-storage according to claim 1 system is characterized in that, further in coating wrap outside on the said wrap.
4. solar energy heat-storage according to claim 1 system is characterized in that, further at least one Buffer Unit of configuration in said wrap.
5. solar energy heat-storage according to claim 4 system is characterized in that, forms the runner of at least one ring shape on the described Buffer Unit.
6. natural recirculating type solar energy heat-storage system, comprising: a solar energy heat collector is to be made up of a plurality of thermal-arrest assemblies; One outside excessive heating prevention thermal insulation water tank; It is in a side with said more than a thermal-arrest assembly be connected, and have a cooling water inlet and a hot water outlet, an internal insulation water tank; It is with said outside the hot water outlet of excessive heating prevention thermal insulation water tank be connected being characterised in that of the wherein said natural recirculating type solar energy heat-storage circulatory system:
Dispose at least one energy outside said in the excessive heating prevention thermal insulation water tank and transmit control device, this energy transmits control device and comprises:
One wrap is an enclosed construction; And
One phase-change material disposes and is closed in the said wrap.
7. solar energy heat-storage according to claim 6 system is characterized in that, disposes at least one said energy in the described internal insulation water tank and transmits control device.
8. solar energy heat-storage according to claim 7 system is characterized in that, described energy transmits control device and comprises:
One wrap is an enclosed construction; And
One phase-change material disposes and is closed in the said wrap.
9. the preparation method of a natural recirculating type solar energy heat-storage system, its step is following:
One solar energy heat collector is provided, forms by a plurality of thermal-arrest assemblies;
One outside excessive heating prevention thermal insulation water tank is provided; It is in a side with said more than a thermal-arrest assembly be connected; And have a cooling water inlet and a hot water outlet; The excessive heating prevention thermal insulation water tank comprises an inner water tank outside said, and one is set in the heat-insulation layer of said inner water tank outside, and one is set in the water tank crust of said heat-insulation layer outside; And
Providing at least one energy to transmit control device, is in the heat-insulation layer that is embedded between said inner water tank and said water tank crust, and described energy transmits control device and comprises:
At least one wrap is an enclosed construction; And
One phase-change material disposes and is closed in the said wrap.
10. preparation method according to claim 9 is characterized in that, an internal insulation water tank further is provided, its be with said outside the hot water outlet of excessive heating prevention thermal insulation water tank be connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103785683A CN102494416A (en) | 2011-11-24 | 2011-11-24 | Natural circulation solar heat storage circulating system and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103785683A CN102494416A (en) | 2011-11-24 | 2011-11-24 | Natural circulation solar heat storage circulating system and manufacturing method thereof |
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| CN102494416A true CN102494416A (en) | 2012-06-13 |
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| CN102069960A (en) * | 2010-06-25 | 2011-05-25 | 皇明太阳能(上海)有限公司 | Method for designing overheating prevention heat preserving water tank |
| CN202511501U (en) * | 2011-11-24 | 2012-10-31 | 皇明太阳能(上海)有限公司 | Natural circulating solar heat storage system |
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| CN2161855Y (en) * | 1993-01-19 | 1994-04-13 | 成都日用电器厂 | Latent heat storage type electric heating warmer |
| US6209343B1 (en) * | 1998-09-29 | 2001-04-03 | Life Science Holdings, Inc. | Portable apparatus for storing and/or transporting biological samples, tissues and/or organs |
| CN2470754Y (en) * | 2001-02-12 | 2002-01-09 | 赵彩富 | Double-water-tank solar water-heater |
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Application publication date: 20120613 |