Communicated heat-locking device

Abstract

The invention discloses a communicated heat-locking device. The top of an internal valve box body (1) is provided with an upper air inlet port (3), the bottom of the internal valve box body (1) is provided with an air inlet cap (2) with a lower air inlet pore (4), a piston is formed by arranging a piston cap (7) on a piston boit (8) and is arranged in the internal valve box body (1) with the support from a spring (5), the piston cap (7) seals the upper air inlet port (3), and the piston boit (8) extends out of the lower air inlet cap (2); the bottom of an external valve box body (9) is provided with a lower exhaust hole (11), the top of the external valve box body (9) is provided with an upper exhaust ring (10) with an upper exhaust hole (12), the internal valve box body (1) is arranged in the external valve box body (9) with the support from a spring (6), and the piston boit (8) extends out of the lower exhaust hole (11) of the external valve box body (9). The heat-locking device of the invention has the advantages of simple structure, combination of air exhaust and air admittance, flexible heat-locking mode, reduced heat lost, improved heat efficiency and excellent heat insulation effect.

Description

technical field [0001] The invention relates to accessories of solar water heaters, in particular to intercommunicating heat locks installed on vent holes of solar water tanks. Background technique [0002] Household solar water heaters are widely used in people's daily life because of their convenience, benefits, and environmental protection. The water tank of the solar water heater is installed and used outdoors, and the heat preservation requirements for the water tank are getting higher and higher with the popularization of the solar water heater. From the perspective of heat preservation effect, the heat dissipation is mainly through the heat conduction and heat dissipation of the vent holes and pipes. The vent holes are the first source of heat dissipation, and 80% of the heat is emitted from the vent holes. The natural heat is upward. In order to reduce heat loss, the ideal vent is forced to be changed to the bottom. The effect of heat preservation is much better, bu...

AI Technical Summary

Problems solved by technology

The natural heat is upward. In order to reduce heat loss, the ideal vent is forced to be changed to the bottom. The effect of heat preservation is much better, but at the same time it brings a fatal hidden danger. The bottom vent is at the bottom of the water tank and the air pipe passes through the water tank. The water inside extends to the top of the water tank. When using water, the water in the water tank decreases, and the air is inflated into the water tank from the vent hole. When the water in the water tank is heated and has water vapor, the water vapor will be exhausted downward through the air pipe, without certain Downforce will not exhaust gas, water vapor will condense into water droplets on the inner wall of the exhaust pipe and flow down from the exhaust port. When it flows to the lower exhaust port, it will freeze due to the low temperature in winter, and slowly The lower exhaust port will be blocked, and the water tank will be deflated due to the blocked air hole when using water again.

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