Vacuum tube solar heating element
The utility model provides a kind of vacuum tube solar heating element, belongs to the solar energy utilization technique field.
At present, full glass vacuum tube solar water heater steps into common people family with advantage energy-conservation, that cost is low, the thermal efficiency is high already, with regard to its technology, generally comprise complete glass vacuum sun thermal-collecting tube, connecting pipe, reflector, support and the water inlet that is communicated with the connecting pipe inner bag, delivery port, delivery port connects heat storage water tank.Because complete glass vacuum sun thermal-collecting tube rubber sealing place load performance is poor, can not guarantee that heat storage water tank has enough discharge pressures, bathing weak effect, and easy scaling in the complete glass vacuum sun thermal-collecting tube have also influenced service life of complete glass vacuum sun thermal-collecting tube.
The purpose of this utility model provides a kind ofly can overcome above-mentioned defective, the boiler discharge pressure is big, bathing is effective, the vacuum tube solar heating element of long service life.
The purpose of this utility model is achieved in that
Comprise some complete glass vacuum sun thermal-collecting tubes, connecting pipe, support and reflector, connecting pipe is made up of connecting pipe inner bag, connecting pipe shell and heat-insulation layer, and be communicated with some complete glass vacuum sun thermal-collecting tubes, it is characterized in that: in the connecting pipe inner bag heat exchange pipeline is set, the two ends of this heat exchange pipeline pass from connecting pipe inner bag side, are connected with heat storage water tank through connecting pipe.
Described vacuum tube solar heating element, the heat exchange pipeline two ends that pass from connecting pipe inner bag side become certain included angle α with this side, and angle α is between 90 ° and 160 °.
The utility model compared with prior art, carry out heat exchange by the hot water in heat exchange pipeline and the connecting pipe hot water is provided, water in the vacuum heat collection pipe and the water in the heat exchange pipeline do not connect, thereby do not communicate with water in the heat storage water tank yet, so heat storage water tank can be made bearing type water tank, with top water law heat-obtaining water, and the approximate zero-pressure of the water in the vacuum heat collection pipe, its rubber sealing place also is in the zero-pressure state and is difficult for revealing, long service life, and because the water in the vacuum heat collection pipe is " stagnant water ", so can guarantee never scaling, keep vacuum heat collection pipe Heat-collecting effect efficiently, and guaranteed that discharge pressure is big, strong and powerful, bathing is effective.
Fig. 1 is a part-structure schematic diagram of the present utility model;
The utility model is described in further detail below in conjunction with accompanying drawing:
Connecting pipe is made up of connecting pipe inner bag 6, connecting pipe shell 4 and heat-insulation layer 5, and fixedly be communicated with some complete glass vacuum sun thermal-collecting tubes 2, its top is provided with gas outlet 1, heat-insulation layer 5 is arranged between connecting pipe inner bag 6 and the connecting pipe shell 4, heat exchange pipeline 7 is set in the connecting pipe inner bag 6, the two ends 3 of this heat exchange pipeline 7 pass from connecting pipe inner bag 6 sides, and the two ends 3 that pass become certain acclivitous angle α with connecting pipe inner bag 6 sides, and angle α is between 90 ° and 160 °.