Water inflow control valve for solar water heater

Abstract

The invention discloses a water inflow control valve for a solar water heater. The water inflow control valve is a floating ball type control valve provided with a valve cavity and a floating ball, wherein the valve cavity is communicated with a solar water tank. The water inflow control valve comprises a valve body, a valve deck and an auxiliary deck. The valve body is arranged above the valve deck, the auxiliary deck is arranged below the valve deck, the valve body and the valve deck are connected in a sealing mode, and the valve body and the auxiliary deck are connected in a sealing mode. The floating ball type control valve is adopted for controlling the water level in the water tank of the solar water heater, when the water level in the water tank is low, the water level in the valve cavity is reduced, a water inflow pipeline in the water inflow control valve is communicated with a water outflow pipeline of the auxiliary deck through a water outflow pipeline, and then water is fed into the water tank. The water level in the valve cavity and the water level in the water tank are synchronously increased, when the water levels are increased to the water level of a stable equilibrium water surface, the water inflow pipeline in the water inflow control valve is disconnected with the water outflow pipeline, and then water is not fed into the water tank. The water inflow control valve is simple in structure, high in water feeding speed, convenient to install and maintain, free of power source power supply, environmentally friendly, stable and reliable in performance, good in application and popularization value and capable of saving energy.

Description

technical field [0001] The invention belongs to the field of solar water heaters, in particular to a water inlet control valve for solar water heaters. Background technique [0002] Most of the traditional household solar water heaters are not equipped with a water inlet control valve. After the water is full, a large amount of water will overflow continuously. The water inlet valve must be manually closed to cut off the water, which will cause a large amount of water resources. waste. Also have solar water heater to be provided with water level sensor and electromagnetic valve to control water level at present, its shortcoming is that must have power supply to work normally. In the event of a power failure, the water heater cannot be used or the water supply valve still needs to be manually turned on and off to maintain its work. In addition, the water level sensor and solenoid valve are complex in structure, easily damaged, unstable in operation, poor in reliability, and ...

Images