A kind of solar energy/air energy double-resource integrated heat collector
Technical field
The utility model relates to a kind of finned heat collector, can absorb solar energy and air energy efficiently simultaneously, and belonging to solar energy/air can hot conversion equipment technical field.
Background technology
Heat collector/evaporimeter is the key equipment of solar energy-air energy heat pump, and its performance and cost are great to solar energy-air energy heat pump performance impact.Solar thermal collector is generally based on flat type solar heat collector, all-glass vacuum tube type solar thermal collector, hot pipe type solar heat collector at present; Air energy heat collector is based on finned heat collector.Flat type solar heat collector absorbs solar energy well, but absorption air energy area is too small and heat scatters and disappears easily, and all-glass vacuum tube type solar thermal collector, hot pipe type solar heat collector almost can not absorb the air energy; Existing air source heat collector is used for absorbing heat from air, even when solar radiation is strong, can not directly absorb solar energy, and there are heat collector frosting of low temp area heat pump or a frozen problem, when it was directly used in solar energy-air energy heat pump, it is undesirable that the angle on sunray and fin plane causes absorbing solar energy.This just makes that solar energy and air can be complementary poor on same set of equipment, weakened the power savings advantages of solar energy-air energy heat pump, and the discrete mode of another kind of solar thermal collector and evaporator with heat pump has increased system cost and floor space greatly.The heat collector patent of present single absorption solar energy or single absorption air energy is many.For example Chinese publication number: CN201072242, open day 2008.06.11, denomination of invention: parallel type aluminum made solar energy collector with fins, form by glass-vacuum tube and finned metal heat-conducting pipe, finned metal heat-conducting pipe is made by aluminium, be provided with water-stop sheet in the pipe,, but can not absorb the air energy than the solar absorption efficient height of simple glass vacuum tube.China's publication number: CN1786613, open day 2006.06.14, denomination of invention: high-efficiency fin formula solar thermal collector, the metal fin of certain intervals dense arrangement, internal thread metal coil pipe passes from fin according to the mode of expand tube, flow in the pipe heat absorption working medium is arranged, fin surface scribbles one deck Large ratio surface black polymer, and fin is vertical with pipe, and the slit fills up polymer to constitute the artificial blackbody cavity of extinction between the fin of the back side, but hindered the convection current of air, be unfavorable for the absorption of air energy.China's publication number: CN2319755, open day 1999.05.19, denomination of invention: a kind of flat-plate solar heat collector of high concentration ratio, it is the flat-plate solar heat collector that has improved, its improvements are to adopt cross fin thermal-collecting tube and circle involute cylindrical mirror to replace the plate absorber plate of common tube sheet combination, can make full use of solar energy, but the area of absorption air energy is too small.China's publication number: CN101231034, open day 2008.07.30, denomination of invention: novel double functional air heat collector, absorber plate is taked the tube-sheet type structure, single metal plate and the parallel welding of single piece of metal pipe, and place in the attemperator of upper and lower opening, order about air with blower fan and flow, limited to the collector area of air.China's publication number: CN101382350, open day 2009.03.11, denomination of invention: solar thermal collector, thermal-collecting tube shape also are to be single metal plate and the parallel welding of single piece of metal pipe, the area that absorbs the air energy is limited.Exist under the nature situation intermittently at solar energy, how to solve and to make full use of solar energy, can under the sun sets back or the situation of continuous cloudy day even rainy day, guarantee the heat energy supply again, become and promote the important problems that solar energy utilizes with minimum energy resource consumption and minimum investment.
Summary of the invention
The utility model provides a kind of solar energy/air energy double-resource integrated heat collector that can absorb solar energy and air energy simultaneously.
Technical solution of the present utility model is as follows:
This solar energy/air energy double-resource integrated heat collector is cooperated by multi-disc metal fin, some copper pipes and several U type elbows and forms, above-mentioned metal fin plane forms inclination angle less than 90 ° with the copper pipe axis direction generally, some copper pipe passes the metal fin that is arranged in parallel, and closely link to each other with metal fin with the mode of expand tube, use U type elbow to interconnect between two copper pipes.
Described metal fin is the monoblock type fin, and interposition is equipped with and is no less than a place pore and interts for copper pipe on each metal fin.
Described metal fin and copper pipe intersection part plan and copper pipe axis normal, the both wings of metal fin are parallel to each other and form consistent inclination angle less than 90 ° with the copper pipe axis direction.
Distance is not less than 3mm between described two metal fins, and the terminal copper pipe surface height relatively of metal fin is 15~25mm.
Described metal fin uses the sheet material of copper or aluminum or aluminum alloy, and sheet metal thickness is 0.1~0.3mm.
Described copper pipe is inner screw thread copper pipe or light pipe.
The medium that flows in the described copper pipe mainly is a refrigeration working medium for absorbing the liquid of solar energy and air energy.
Described copper pipe is no less than a row being parallel to the setting of sunray incident direction, if multi coil, the liquid in pipe type of flow is to flow by row to first comb towards the sun from last row.
Described metal fin surface coating solar selectively absorbing coating, coating material is black nickel or black cobalt or black chromium.
Owing to be engraved in variation during solar incident angle, the otherness in different latitude and season is very big, by optimal design one optimal angle there is the whole year, the utility model makes heat collector fin plane be in this optimal angle by design, make sunshine and heat collector fin normal angulation as far as possible little, reach the purpose of abundant absorption solar energy.Simultaneously, the long-pending ratio of fin area and heat collector side to light is appropriate, can absorb enough air energy in the time that does not have the sun.They are three years old, side to light fin behind also is bent into certain angle with pipe, make air form chimney at fin surface according to the aerostatic buoyancy principle on the one hand and do in order to promote air motion, the front and back bending of fin all can be strengthened the flow-disturbing of air on the other hand, improves heat collector air side exchange capability of heat.Utilize flowing naturally of air-flow to remove blower fan from, can save heat collector cost and operation power consumption.
The tiltable after adding suitable frame of this heat collector is positioned over roof, vacant lot, but also vertical hanging provides the main component devices of system that efficiently utilizes solar energy and air energy in balcony or metope for heat pump.
The beneficial effects of the utility model are: need not blower fan, daytime is efficient absorption solar energy directly, evening or overcast and rainyly can fully from air, absorb heat, solve existing solar thermal collector evening or overcast and rainy problem that can not regular supply heat energy, solve problems such as the frosting of air source heat pump heat collector is serious simultaneously.
Description of drawings
Fig. 1 is a structural principle front view of the present utility model.
Fig. 2 is a structural principle A-A cutaway view of the present utility model.
Fig. 3 is metal fin of the present utility model and copper pipe connection diagram.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done detailed description.
This solar energy/air energy double-resource integrated heat collector is made up of metal fin 1, copper pipe 2, U type elbow 3.Its structure and connected mode are referring to Fig. 1, Fig. 2, Fig. 3.
Metal fin 1 material can use copper or aluminum or aluminum alloy sheet material, preferably uses the thin aluminum sheet material.Sheet metal thickness can preferably use 0.25mm at 0.1~0.3mm.Described metal fin surface coating solar selectively absorbing coating, coating material can be black nickel, black cobalt or black chromium, preferably uses black nickel, make its solar absorptance reach 0.90~0.95, and emissivity drops to below 0.1.Described metal fin shape is seen Fig. 3.Metal fin bending angle β is relevant with mounting means with the installation region, and this angle was got 28 ° when for example vertically installed the South China.Have on the metal fin to be no less than one punching, each aperture is all carried out flange and is handled.Copper pipe 2 is passed compact arranged
metal fin 1, make the two tight contact by expand tube then.Copper pipe 2 calibers can be selected for use
9.6 * 0.6mm~
12.7 * 0.8mm preferably uses
9.6 * 0.6mm.Copper pipe can be an inner screw thread copper pipe, also can select light pipe for use.Connect with
U type elbow 3 between each copper pipe, form the heat collector that refrigeration working medium circulates.Copper pipe pipe row is several according to geographical meteorological condition design, can be 1~3 row or many rows, preferably uses 1 comb, if multi coil, the liquid in pipe type of flow is to flow by row to first comb towards the sun from last row.