The heat pipe type vacuum pipe solar energy air heat collector
Technical field
The utility model relates to a kind of heat collector, is that a kind of heat-pipe vacuum heat collecting pipe that utilizes absorbs the device that solar energy is used to add hot-air.
Background technology
Heat-pipe vacuum heat collecting pipe as a kind of solar energy-transition element of heat energy, is that evaporator section with heat pipe is encapsulated in the glass-vacuum tube and constitutes.The evaporator section of heat pipe is subjected to solar radiation absorption solar energy that the intraductal heat transfer medium is vaporized at evaporator section, and steam is emitted heat and condensation at the condensation end of heat pipe then, utilizes heat transfer medium to conduct heat in the phase transformation at two ends, realizes the transformation of energy of solar energy thermotropism.
Heat-pipe vacuum heat collecting pipe is widely used in solar water heater at present, as the heat collector use of solar water heater, mainly is to be used to add hot water, uses for life.Someone attempted as air collector, promptly adds hot water with heat-pipe vacuum heat collecting pipe earlier water is heated up, and then heat release in heat exchanger of hot water feeding is added hot-air.Yet this mode needs force (forcing) pump and a heat exchanger, except that structure complexity, cost height, because water also will solve the preventing freeze in winter problem as heat transfer medium, therefore is difficult to extensively be promoted the use of.
The utility model content
The purpose of this utility model is to provide a kind of heat pipe type vacuum pipe solar energy air heat collector, and this air collector utilizes heat pipe directly to add hot-air, and is not only simple in structure, easy to use, and the heat transfer efficiency height.
The utility model adopts following technical scheme: a kind of heat pipe type vacuum pipe solar energy air heat collector, comprise air flow channel and many heat-pipe vacuum heat collecting pipes, described heat-pipe vacuum heat collecting pipe is made of the heat pipe that evaporator section is encapsulated in the glass-vacuum tube, it is characterized in that: described heat-pipe vacuum heat collecting pipe is exposed to the outer heat pipe condenser section of glass-vacuum tube radiating fin is housed, and this condensation segment inserts in the described air flow channel.
Heat-pipe vacuum heat collecting pipe described in the utility model can refer to any thermal-collecting tube structure of being made up of glass-vacuum tube and heat pipe, comprises the metal-glass heat-pipe vacuum heat collecting pipe.
This heat pipe type vacuum pipe solar energy air heat collector of the present utility model, directly add hot-air in the heat pipe condenser section insertion air flow channel with heat-pipe vacuum heat collecting pipe, and owing to be provided with fin at heat pipe condenser section, not only increased heat exchange area, main is because the flow-disturbing effect of fin, strengthen the heat transfer between air and the condensation segment, improved the efficiency of heating surface.
Description of drawings
Fig. 1 is a heat pipe type vacuum pipe solar energy air heat collector structural representation of the present utility model.
Fig. 2 is the assembling schematic diagram of heat-pipe vacuum heat collecting pipe and air flow channel.
Fig. 3 is the partial enlarged drawing of I portion among Fig. 2.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, to help understanding content of the present utility model.
As Fig. 1 is a kind of heat pipe type vacuum pipe solar energy air heat collector, comprises air flow channel 1 and many heat-pipe vacuum heat collecting pipes 2.Air flow channel 1 is one section air duct, also can be a casing.As shown in Figure 2, heat-pipe vacuum heat collecting pipe 2 is made of heat pipe and glass-vacuum tube 21, and the evaporator section of heat pipe is encapsulated in the glass- vacuum tube 21, and 22 of heat pipe condenser sections expose outside glass-vacuum tube 21.Heat-pipe vacuum heat collecting pipe is exposed on glass-vacuum tube 21 heat pipe condenser section 22 outward many radiating fins 23 is housed, and this condensation segment 22 inserts in the air flow channel by the installing hole on the air flow channel 1.Radiating fin 23 has not only increased the area of dissipation of heat pipe greatly, and has the flow-disturbing effect, with augmentation of heat transfer, improves heat exchange efficiency.
Though can only heat pipe condenser section 22 be inserted in the air flow channel, install for reducing heat loss and being convenient to, as shown in Figures 2 and 3, certain-length in the air flow channel is also inserted in the end of the glass-vacuum tube 21 of heat-pipe vacuum heat collecting pipe, sealing ring 4 is arranged with this clearance seal in the annular gap between the outer wall of glass-vacuum tube 21 and the heat-pipe vacuum heat collecting pipe installing hole inwall 11 on the air flow channel.Sealing ring 4 is a rubber ring, and the sealing ring outer surface has annular groove 4a, and heat-pipe vacuum heat collecting pipe installing hole inwall 11 relevant positions on air flow channel are provided with bulge loop 11a and imbed and form location and sealing in the annular groove 4a on the sealing ring.As long as the diameter of disk shape fin 23 is less than the internal diameter of heat-pipe vacuum heat collecting pipe installing hole on the air flow channel, be inserted into the heat-pipe vacuum heat collecting pipe condensation end that installs sealing ring 4 in the air flow channel inwards, in the annular groove 4a on the bulge loop 11a embedding sealing ring 4, sealing ring and heat-pipe vacuum heat collecting pipe are blocked, can finish assembling and sealing.The quantity of sealing ring 4 and bulge loop 11a also can be provided with multiple tracks as required.Fin 23 can be fixed on the heat pipe condenser section by welding or interference fit for being enclosed within the high sheet metals of heat transfer system such as outer circular copper sheet of heat pipe condenser section 22 or aluminium flake.
As Fig. 2 institute method, can also be surrounded by heat-insulation layer 12 in the air flow channel outside.
As shown in Figure 1, at air flow channel 1 arrival end blower fan 3 is installed.With blower fan 3 air blast in air flow channel 1, utilization is absorbed solar energy and is converted into heat energy by sun-exposed heat-pipe vacuum heat collecting pipe 2 and adds hot-air, after making atmosphere temperature rising, the hot-air that produces can be transported to the place that needs hot blast by pipeline, for example import indoorly, perhaps be transported to the drying that heated-air drying equipment is used for food or industrial goods to improve room temperature in the winter time.Heat collector can be organized parallel connection more or connect a shared typhoon machine.