Solar water heater automatic water-supply apparatus
One, technical field
The utility model relates to solar water heater automatic water-supply apparatus, belongs to technical field of solar water heaters.
Two, background technology
The prior solar water heater automatic water-supply apparatus needs instrument control, mainly has problems such as fault rate height.
Three, summary of the invention
The purpose of this utility model is to provide a kind of solar water heater automatic water-supply apparatus that water is closed automatically of going up.
The purpose of this utility model is to realize like this, a kind of solar water heater automatic water-supply apparatus, comprise water tank, upper and lower conduit, return duct, water valve up and down, it is characterized in that connecting water butt at the delivery port of return duct, bottom at water butt connects discharging valve, with water valve up and down and connect water solenoid valve, water butt is established float switch, coil one termination power one end of last water solenoid valve, one end of another termination float switch, another termination power switch one end of float switch, another termination power other end of power switch.
Compared with the prior art the utility model has following distinguishing feature and good effect: the utility model adopts the delivery port at return duct to be connected water butt, bottom at water butt connects discharging valve, water valve and connect water solenoid valve up and down, water butt is established float switch, coil one termination power one end of last water solenoid valve, one end of another termination float switch, another termination power switch one end of float switch, another termination power other end of power switch.Float switch is a normal open switch, power switch is a normally closed switch, open discharging valve when going up water like this and emit the interior water of water butt, float switch is connected, water is opened in last water solenoid valve energising, close discharging valve, behind the filling up water, the return duct backwater enters water butt, and float switch is disconnected, last water solenoid valve dead electricity is closed and is stopped to go up water, can reach the purpose that water is closed automatically.
Solar water heater automatic water-supply apparatus of the present utility model can overcome the defective that prior art exists, and has last water and characteristics such as closes automatically.
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: water tank (1), upper and lower conduit (2), return duct (3), up and down water valve (4), go up water solenoid valve (5), power supply (6), power switch (7), float switch (8), water butt (9), discharging valve (10).
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 water heater automatic water-supply apparatus of the utility model most preferred embodiment, comprise water tank (1), upper and lower conduit (2), return duct (3), water valve (4) up and down, it is characterized in that connecting water butt (9) at the delivery port of return duct, bottom at water butt connects discharging valve (10), water valve and connect water solenoid valve (5) up and down, water butt is established float switch (8), coil one termination power (6) one ends of last water solenoid valve, one end of another termination float switch, another termination power switch (7) one ends of float switch, another termination power other end of power switch.Open discharging valve during last water and emit water in the water butt, float switch is connected, water is opened in last water solenoid valve energising, close discharging valve, behind the filling up water, the return duct backwater enters water butt, and float switch is disconnected, last water solenoid valve dead electricity is closed and is stopped to go up water, can reach the purpose that water is closed automatically.
Solar water heater automatic water-supply apparatus of the present utility model can overcome the defective that prior art exists, and has last water and characteristics such as closes automatically.