Solar energy whole formula balcony water heater
Technical field
The utility model relates to a kind of water heater, relates in particular to a kind of solar energy whole formula balcony water heater.
Background technology
In the prior art, directly utilize the water heater of solar energy optical-thermal conversion of productions to mainly contain following two major types: the one, the glass-vacuum tube heat collection type, it is the interior pipe of the double-layer glass tube that is nested together, its inwall deposits solar energy optical-thermal Transform Sets hotting mask, the heat that the water flowing of interior pipe is taken away on the thermal-arrest film is finished heat exchange, interlayer between inner and outer pipes is evacuated, the outside heat transmission of pipe in reducing.Its shortcoming be because of glass tube frangible and fragile; Easy dry combustion method bombing when interior pipe does not lead to water; Collecting efficiency is relatively low; Because the directly contact and make thermal-arrest film vulnerable to pollution, service life relative shorter of WATER AS FLOW MEDIUM and thermal-arrest film; Profile and building construction owe harmony, take bigger erection space; The 2nd, common metal film flat heat collecting type, be spraying or brushing thermal-arrest rete on the metal foil film substrate, solar radiation is behind the thermal-arrest rete, the photo-thermal conversion makes the thermal-arrest rete obtain heat energy, pass to the heat exchange water pipe that welds on the substrate paper tinsel film by substrate paper tinsel film again, take away heat by the water in the water pipe again, finish heat exchange.Its shortcoming is that collecting efficiency is relatively low, and promptly solar absorptance is lower, and infrared emittance is higher; And profile and building construction owe harmony, take bigger erection space.More than the solar water heater of two major types all be the roof that is placed on building, perhaps on the vacant lot on building next door.
Utility model content the purpose of this utility model is to provide a kind of and building is integrated, photo-thermal conversion efficiency is higher and the solar energy whole formula balcony water heater of long service life.
In order to achieve the above object, the utility model provides following technical scheme, design a kind of solar energy whole formula balcony water heater, this water heater is made of solar thermal collector assembly 1 and heat preservation hot water tank 2, the thermal-arrest plate 11 of solar thermal collector assembly 1 outwardly and be fixed in the outer of balcony guardrail, solar thermal collector assembly 1 links to each other with the upper end of heat preservation hot water tank 2 by hot-water line 3, the lower end side of heat preservation hot water tank 2 is equipped with the hot water delivery pipe 5 of band valve 4, the cold water filling pipe 6 that valve 7 is housed feeds heat preservation hot water tank 2 inner chambers, the cold-water reflux pipe 8 of the band valve 9 that links to each other with solar thermal collector assembly 1 is equipped with in the bottom of heat preservation hot water tank 2, heat exchange water pipe 11-8 is housed in the solar thermal collector assembly 1, and cold-water reflux pipe 8 and hot-water line 3 are connected respectively and communicate with heat exchange water pipe 11-8 from thermal-arrest plate 11 both sides.
In the heat preservation hot water tank 2 of the present utility model electric heater 10 is housed.This is an acknowledgment copy, only is not enough to satisfy water heater of the present utility model in sunshine illumination water is heated to when requiring temperature, and such as long-term overcast and rainy, electric heater 10 just drops into the water heating work, with the assurance hot water supply.
The thermal-arrest plate 11 of solar thermal collector assembly 1 of the present utility model is flat or the arc surface form.When thermal-arrest plate 11 is the cylinder arc surfaced, the profile that can make whole balcony more harmoniously with building harmony mutually, also can increase collector area simultaneously, improve Heat-collecting effect.
Thermal-arrest plate 11 of the present utility model constitutes from compressing steel band 11-7, thermal radiation resistant aluminium film 11-6, heat-insulation layer 11-5 and back side shield 11-3 by safety glass protective cover 11-4, thermal-arrest film 11-1, heat exchange water pipe 11-8, heat exchange water pipe outside to inside, be packaged into an integral body by encapsulation frame 11-2 around the thermal-arrest plate 11, heat exchange water pipe 11-8 is fixedlyed connected with the back side of thermal-arrest film 11-1.In order to prevent that heat exchange water pipe 11-8 and thermal-arrest film 11-1 occurrence positions in thermal-arrest plate 11 from moving, be provided with the heat exchange water pipe that two ends are fixed on the encapsulation frame 11-2 and compress steel band 11-7, limit its occurrence positions and move.Heat exchange water pipe 11-8 adopts the mode of ultrasonic bonding to fixedly connected with the back side of thermal-arrest film 11-1.
Thermal-arrest film 11-1 of the present utility model is made of deposition substrate A, infrared reflecting layer B, the first absorbed layer C, the second absorbed layer D and antireflection layer E from bottom to top, and infrared reflecting layer B, the first absorbed layer C, the second absorbed layer D and antireflection layer E deposition are overlapped in deposition substrate A and go up whole rete of formation.More particularly, infrared reflecting layer B is the copper rete of plated metal attitude, and its effect is to guarantee that thermal-arrest film 11-1 has enough low infrared emittance, prevents that the heat energy on the substrate paper tinsel film from leaking; The first absorbed layer C and the second absorbed layer D are the oxygen nitrogen nichrome (NiCrO of sputtering sedimentation state
xN
y) thin layer, absorbed layer can reduce the reflectivity to the light of visible light and near infrared band, can absorb solar energy to greatest extent, it promptly is the solar absorptance height, simultaneously, absorbed layer can improve the light reflectance to infrared band, promptly is that infrared emittance is low, can prevent that the heat energy on the substrate paper tinsel film from leaking; The material of antireflection layer (E) is transparent dielectric attitude oxygen nichrome (NiCrO) thin layer, and its effect is the reflex that reduces visible light and near infrared band light as much as possible, guarantees that solar energy as much as possible is converted into heat energy.
Heat exchange water pipe 11-8 of the present utility model can be a coiled pipe.It is simple in structure, heat-transfer effect good, certain plastic deformation characteristic is arranged, and makes thermal-arrest plate 11 can easily make cylinder cambered surface form.
Deposition substrate A of the present utility model is that thickness is copper film substrate or the aluminium matter film substrate of 0.1~0.3mm.
Compared with prior art, the utlity model has following tangible advantage: 1, technique effect is good: the solar absorptance of this solar water heater is up to 0.9 (air quality AM1.5), infrared emittance is low to 0.05 (80 ℃ ± 2 ℃), thereby photo-thermal conversion efficiency is higher; 2, owing to avoided using evacuated breakaway glass pipe, the dry combustion method blasted pipe phenomenon can not appear when not leading to water yet, thus not fragile, and service life is longer; 3, owing to be and the incorporate device of building not take erection space in addition.
Description of drawings
Below be description of drawings of the present utility model:
Fig. 1 is that solar energy whole formula balcony water-heater system constitutes schematic diagram;
Fig. 2 is the structural representation of the utility model arc surface thermal-arrest plate;
Fig. 3 is the structural representation of the flat thermal-arrest plate of the utility model;
Fig. 4 is the film layer structure schematic diagram of the utility model thermal-arrest film;
Fig. 5 is the heat exchange water pipe arrangement schematic diagram that crawls in the utility model.
In Fig. 1~5, the 1st, balcony formula solar thermal collector assembly, the 2nd, heat preservation hot water tank, the 3rd, hot-water line, 3A are pipe joint of hot water, the 4th, and valve, the 5th, hot water delivery pipe, the 6th, cold water filling pipe, the 7th, valve, the 8th, cold-water reflux pipe, 8A are the cold-water reflux pipe joints, the 9th, and valve, the 10th, electric heater, the 11st, thermal-arrest plate, 11-1 are the thermal-arrest films, 11-2 is the encapsulation frame, 11-3 is a back side shield, and 11-4 is the safety glass protective cover, and 11-5 is a heat-insulation layer, 11-6 is a thermal radiation resistant aluminium film, 11-7 is that the heat exchange water pipe compresses steel band, and 11-8 is the heat exchange water pipe, the 12nd, and guardrail, the 13rd, safety rail, A is a deposition substrate, and B is an infrared reflecting layer, and C is first absorbed layer, D is second absorbed layer, and E is an antireflection layer.
The specific embodiment
Below by specific embodiment the utility model is described:
Referring to Fig. 1, solar energy whole formula balcony water heater is made of solar thermal collector assembly 1 and heat preservation hot water tank 2, the thermal-arrest plate 11 of solar thermal collector assembly 1 outwardly and be fixed in the outer of balcony guardrail, solar thermal collector assembly 1 links to each other with the upper end of heat preservation hot water tank 2 by hot-water line 3, the lower end side of heat preservation hot water tank 2 is equipped with the hot water delivery pipe 5 of band valve 4, the cold water filling pipe 6 that valve 7 is housed feeds heat preservation hot water tank 2 inner chambers, and the cold-water reflux pipe 8 of the band valve 9 that links to each other with solar thermal collector assembly 1 is equipped with in the bottom of heat preservation hot water tank 2.Be provided with safety rail 13 among Fig. 1 above guardrail 12, hot-water line 3 and cold-water reflux pipe 8 pass from safety rail 13 in a tubular form.Gap between safety rail 13 and hot-water line 3 and the cold-water reflux pipe 8 is adopted and is injected foaming, forms the insulation foamed plastic layer that is full of the gap.
With reference to Fig. 1, electric heater 10 is housed in the heat preservation hot water tank 2.
With reference to Fig. 2, the thermal-arrest plate 11 of solar thermal collector assembly 1 is arc surface shape.
With reference to Fig. 2,3, thermal-arrest plate 11 constitutes from compressing steel band 11-7, thermal radiation resistant aluminium film 11-6, heat-insulation layer 11-5 and back side shield 11-3 by safety glass protective cover 11-4, thermal-arrest film 11-1, heat exchange water pipe 11-8, heat exchange water pipe outside to inside.Be packaged into an integral body by encapsulation frame 11-2 around the thermal-arrest plate 11; Cold-water reflux pipe 8 is connected respectively with the both sides of thermal-arrest plate 11 with hot-water line 3 and communicates with heat exchange water pipe 11-8, and heat exchange water pipe 11-8 is fixedlyed connected with the back side of thermal-arrest film 11-1.
With reference to Fig. 3,4, thermal-arrest film 11-1 is made of deposition substrate A, infrared reflecting layer B, the first absorbed layer C, the second absorbed layer D and antireflection layer E from bottom to top, and infrared reflecting layer B, the first absorbed layer C, the second absorbed layer D and antireflection layer E deposition are overlapped in deposition substrate A and go up whole rete of formation.In concrete the enforcement, deposition substrate A is that thickness is copper film substrate or the aluminium matter film substrate of 0.1~0.3mm.
With reference to Fig. 5, heat exchange water pipe 11-8 is a coiled pipe, and in this figure and Fig. 2, hot-water line 3, cold-water reflux pipe 8 link to each other with the two ends of heat exchange water pipe 11-8 with cold-water reflux pipe joint 8A by pipe joint of hot water 3A respectively.