CN201215402Y - Reflux apparatus of solar energy - Google Patents

Abstract

The utility model discloses a solar energy recycling device, comprising a reflux pipe (1), which is characterized in that the top of the reflux pipe (1) is provided with an anti-drip bend tube (2) which orifice is bent downwards, while the anti-drip bend tube is arranged on the bottom of a water tank or inclined in the water tank, the outer part of the water tank containing the reflux pipe (1) is provided with a depressurize pipe orifice. The solar energy recycling device can effectively prevent the reflux pipe from leakage and blockage, and can prevent the water tank from being deformed caused by over depressurization.

Description

Solar backflow device

One, technical field

The utility model relates to solar backflow device, belongs to technical field of solar water heaters.

Two, background technology

The upper orifice of existing solar energy return duct upwards or laterally, underlying or side behind the water expanded by heating in the water tank return duct water clock can take place and freeze stifled phenomenon in water tank, and flat phenomenon is taken out once stop up in the time of also the return duct recirculation water can taking place water tank in the water tank gas outlet.

Three, summary of the invention

The purpose of this utility model is to provide a kind of and prevents that effectively the return duct water clock from freezing stifled and prevent that water tank from being taken out flat solar backflow device.

The utility model is implemented by the following technical programs:

The purpose of this utility model is achieved in that a kind of solar backflow device, comprises return duct (1), and underlying or side is characterized in that being provided with the reclinate antidrip bend pipe of the mouth of pipe (2) at the top of return duct (1) in water tank.

In order further to realize the purpose of this utility model, establish the decompression mouth of pipe (3) in the water tank outside of return duct (1).

Compared with the prior art the utility model has following distinguishing feature and good effect: the utility model adopts and is provided with the reclinate antidrip bend pipe of the mouth of pipe (2) at the top of return duct (1), like this after filling up water stops to go up water, antidrip bend pipe (2) can make return duct produce siphonage, make the interior horizontal plane of water tank drop to the water inlet position of antidrip bend pipe (2), just can not take place behind the water expanded by heating in the water tank to reflux or water clock, thereby avoid the return duct water clock to freeze the generation of stifled phenomenon, establish the decompression mouth of pipe (3) in the water tank outside of return duct (1), like this when filling up water stops to go up water return duct recirculation water, the decompression mouth of pipe (3) can be ventilated and be reduced the negative pressure of return duct recirculation water to producing in the water tank, thereby avoids water tank to be taken out the generation of flat phenomenon.

Four, description of drawings

Accompanying drawing is the utility model embodiment main composition schematic diagram:

The sequence number of each parts is respectively among the figure: return duct (1), antidrip bend pipe (2), the decompression mouth of pipe (3).

Five, the specific embodiment

Following with reference to accompanying drawing, provide most preferred embodiment of the present utility model, be used for formation of the present utility model is further specified.

A kind of solar backflow device of the utility model most preferred embodiment, comprise return duct (1), return duct (1) underlying or side are in water tank, it is characterized in that being provided with the reclinate antidrip bend pipe of the mouth of pipe (2) at the top of return duct (1), establish the decompression mouth of pipe (3) at the water tank outer bottom of return duct (1), after filling up water stops to go up water, antidrip bend pipe (2) can make return duct produce siphonage, make the interior horizontal plane of water tank drop to the water inlet position of antidrip bend pipe (2), return duct can not take place to reflux or water clock behind the water expanded by heating in the water tank, thereby avoid the return duct water clock to freeze the generation of stifled phenomenon, the effect of the decompression mouth of pipe (3) is when the return duct recirculation water, can ventilate and reduce the negative pressure of return duct recirculation water, thereby avoid water tank to be taken out the generation of flat phenomenon producing in the water tank.

Solar backflow device of the present utility model can prevent effectively that the return duct water clock from freezing the generation of stifled phenomenon and preventing that water tank from being taken out the generation of flat phenomenon.

Claims (2)

1, a kind of solar backflow device comprises return duct (1), it is characterized in that being provided with the reclinate antidrip bend pipe of the mouth of pipe (2) at the top of return duct (1).

2, solar backflow device according to claim 1 is characterized in that establishing in the water tank outside of return duct (1) the decompression mouth of pipe (3).

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