Solar thermal collector
The utility model belongs to field of mechanical technique, relates to a kind of heat-exchange device, particularly a kind of solar thermal collector.
In the heat utilization of solar energy, key is that the radiant energy with the sun converts heat energy into.Because solar energy relatively disperses, and must manage to put together it, so heat collector is the various key components of utilizing solar energy equipment, heat collector generally is divided into this several types of flat plate collector, concentrating collector and plane mirror.
Because simple in structure, reliable, the cost of flat plate collector suit, also have characteristics such as bearing capacity is strong, endotherm area is big, so flat plate collector is usually used in the solar water heater.Present heat collector all is through the drive that links of tube connector and storage tank, and storage tank is arranged at the heat collector top.Water is accepted the heating of solar radiation in heat collector; Water temperature rise can cause water temperature difference in heat collector and the storage tank and the generation density contrast, so cause buoyancy change; Form the thermal siphon phenomenon; Impel water to flow naturally in storage tank at heat collector, owing to the relation of density contrast, discharge is directly proportional with the solar absorption amount of heat collector here.
The above-mentioned this heat collector and the layout of storage tank do not need recirculated water, safeguard simple; Now for prevent night water from the storage tank adverse current to heat collector, all can on tube connector, check-valves be installed in case non-return flow phenomenon, reduce heat loss; Even but increase check-valves; Still can't resolve the shortcoming that exists in this heat collector and the storage tank layout, this shortcoming is that it fails fully to be delivered to the storage tank storage to the water behind absorption heat energy apace, makes heat loss bigger.
Summary of the invention
The purpose of the utility model is to the problems referred to above that exist in the prior art, and providing a kind of can be delivered to the water after the heating the storage tank to reduce the solar thermal collector of heat loss from heat-exchange tube fast.
The purpose of the utility model can realize through following technical proposal: a kind of solar thermal collector; Comprise a base; This base has a cavity along horizontal spreading, and said cavity place is provided with some heat-exchange tubes in a tubular form, it is characterized in that; The cavity place of described base also is provided with solar cell, and the tube connector between described heat-exchange tube and the storage tank is provided with water pump and water pump and above-mentioned solar cell and links.
This solar thermal collector is communicated with storage tank through tube connector.In use; Heat-exchange tube absorbs solar radiation the water in it is heated; Because of the thermal siphon phenomenon, the water after the heating can flow into the storage tank through tube connector from heat-exchange tube, and the solar energy of solar cell absorption simultaneously is that water pump provides electric energy; Pump working is delivered to the water after heating in the heat-exchange tube in the storage tank apace, has reduced heat loss.And adopted solar cell, can reach purpose energy-conservation, environmental protection.
In above-mentioned solar thermal collector, the port of described base cavity is provided with transparent glass, and above-mentioned heat-exchange tube and solar cell are all in the cavity between transparent glass and base.Transparent glass had both played the effect of location heat-exchange tube, also played the effect with solar light focusing, made that the heat-exchange tube energy-absorbing is quick.
In above-mentioned solar thermal collector, be provided with heat-insulation layer between described base and the heat-exchange tube.Heat-insulation layer the heat loss that has reduced the heat-exchange tube place is set.
In above-mentioned solar thermal collector, described heat-insulation layer is a polyurethane foam material.
In above-mentioned solar thermal collector, described heat-insulation layer material is the mineral wool goods.
In above-mentioned solar thermal collector, described transparent glass is a tempering woven design glass.Tempering woven design strength of glass is better, long service life.
In above-mentioned solar thermal collector, also have heat-conducting plate between described heat-insulation layer and the transparent glass, above-mentioned heat-exchange tube is connected on the heat-conducting plate.Heat-conducting plate can absorb solar energy, with the heat transferred heat-exchange tube, has improved the heat absorption capacity of heat-exchange tube.
In above-mentioned solar thermal collector, described heat-exchange tube is a copper pipe.
In above-mentioned solar thermal collector, described heat-conducting plate is processed by the red copper material.
Compared with prior art, this solar thermal collector can be delivered to the water after the heating in the heat-exchange tube in the storage tank apace, thereby reduced heat loss, and be the energy with the solar cell through solar cell, water pump, has the advantage of energy-conserving and environment-protective.
Description of drawings
Fig. 1 is the main TV structure sketch map of this solar thermal collector.
Fig. 2 is the sectional structure sketch map of this solar thermal collector.
Among the figure, 1, base; 2, heat-exchange tube; 3, solar cell; 4, water pump; 5, transparent glass; 6, heat-insulation layer; 7, heat-conducting plate.
The specific embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
This solar thermal collector is made up of parts such as base 1, heat-exchange tube 2, solar cell 3 and water pumps 4, is communicated with storage tank through tube connector during use, can reach water is heated and is stored in the purpose in the storage tank.
Specifically; Like Fig. 1, shown in Figure 2, base 1 is processed by aluminium alloy and base 1 has a cavity along horizontal spreading, and the cavity place is provided with some heat-exchange tubes 2 in a tubular form; Heat-exchange tube 2 is a copper pipe; The quantity of heat-exchange tube 2 is decided according to actual conditions, and the cavity place of base 1 also is provided with solar cell 3, and the tube connector between heat-exchange tube 2 and the storage tank is provided with water pump 4 and water pump 4 links with solar cell 3.The port of base 1 cavity is provided with transparent glass 5, and all in the cavity between transparent glass 5 and base 1, for guaranteeing service life, transparent glass 5 is a tempering woven design glass for heat-exchange tube 2 and solar cell 3.For reducing the heat loss of heat-exchange tube 2, be provided with the heat-insulation layer 6 that polyurethane foam material is processed between base 1 and the heat-exchange tube 2, certainly according to actual conditions, heat-insulation layer 6 can also be the mineral wool goods; For guaranteeing the heat absorption capacity of heat-exchange tube 2, also have the heat-conducting plate 7 that the red copper material is processed between heat-insulation layer 6 and the transparent glass 5, heat-conducting plate 7 is between heat-exchange tube 2 and the heat-insulation layer 6, and heat-exchange tube 2 is connected on the heat-conducting plate 7.
This solar thermal collector in use, heat-exchange tube 2 absorbs solar radiations, heat-conducting plate 7 is with the heat transferred heat-exchange tube 2 that absorbs simultaneously; Heat-exchange tube 2 heats the water in it; Because of the thermal siphon phenomenon, the water after the heating can flow into the storage tank through tube connector from heat-exchange tube 2, and solar cell 3 absorption solar energy are that water pump 4 provides electric energy simultaneously; Water pump 4 work are delivered to the water after heating in the heat-exchange tube 2 in the storage tank apace; Reduce heat loss, and adopted solar cell 3, had the advantage of energy-conserving and environment-protective.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as base 1, heat-exchange tube 2, solar cell 3, water pump 4, transparent glass 5, heat-insulation layer 6, heat-conducting plate 7 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.