Solar water heater water inlet and outlet autocontrol valve
Technical field
The utility model is the solar water heater water inlet and outlet autocontrol valve that is contained in solar water heater water tank one end.
Background technique
Existing solar water heater water tank water inlet pattern is four kinds: 1, manual control.2, with liquefaction air valve repacking valve, be installed in the solar water heater water tank water inlet and intake automatically.3, intake automatically with electromagnetic valve.4, ball-cock assembly is controlled water inlet in the attached water tank on solar water heater water tank next door.
Above technology is by user-selected usefulness, but use condition is bad, and easy to failure, reason is as follows: 1, manual control person, easily forget out water on the valve, and after water is piled, easily forget the pass valve, cause the spilling water waste.2, the water outlet of liquefaction air valve repacking valve is too little, and diameter has only 0.8 millimeter, is easily stopped up by foreign material.3, solenoid valve cost height if having a power failure, still needs the artificial water of going up.4, utilize float valve, must add an attached water tank in that solar water heater water tank is other, not too convenient, and cold water enters into water tank immediately when putting hot water, and water temperature is descended, and influences water heater usefulness.
Summary of the invention
The utility model purpose provide a kind of can Automatic Control the solar water heater water inlet and outlet autocontrol valve of water inlet and water outlet, make that its volume is little, cost is low, long service life, freedom from repairs, and be convenient to installation.
The technical solution of the utility model is such: in a tubular valve body, upper floating ball and following ball float are set from top to bottom, a little water tank that is fixed on the valve body wall is set between two ball floats.Have one to go out the water seal piece and link to each other with upper floating ball by pull bar in the little water tank, following ball float links to each other with water inlet envelope piece in right angle, the valve body bottom intake pipe vertical tube by lever.Simultaneously, two water intake and filter screens that bore is bigger are set in the right angle intake pipe, had solved in the past blocking problem easily.
Effect of the present utility model is conspicuous: the Automatic Control that realizes water-in and water-out easily, its volume is little, and cost is low, can be supporting with various the old and new's solar water heaters, installation and use are all very convenient, in addition, owing to added filter screen, enlarged the bore of water-in and water-out, so solved the susceptible to plugging problem of pipeline, and water intake velocity is fast, and in water utilizing process, water temperature remains constant.
Description of drawings
Fig. 1 is a sectional structural map of the present utility model.
Among the figure: 1, right angle intake pipe 2, filter screen 3, non-return water polo 4, go up water intake 5, go up intake pipe 6, fulcrum 7, lever 8, valve body 9, go out water seal piece 10, pull bar 11, internally piloted valve air outlet hole 12, upper floating ball 13, circular hole 14, little water tank 15, ball float 16, outlet pipe 17, water inlet envelope piece 18, water intake 19, solar water heater water tank air outlet hole 20, water outlet 21, solar water heater water tank water intake down down
Embodiment
In Fig. 1, solar water heater water inlet and outlet autocontrol valve is installed in an end of solar water heater water tank, and this valve outlet pipe (16) is connected with solar water heater water tank water intake (21), and this valve right angle intake pipe is connected with tap water pipe line.Top in valve body (8) is provided with internally piloted valve air outlet hole (11).In the valve body (8), be provided with upper floating ball (12), little water tank (14), following ball float (15) from top to bottom.Have one to go out water seal piece (9) in the little water tank, it is linked to each other with upper floating ball (12) by the pull bar (10) that passes little tank top circular hole (13).In the vertical tube of right angle intake pipe (1), the left side is provided with down water intake (18), and the right side is provided with water intake (4), and the diameter of two water intakes is all greater than the diameter in the prior art.Following water intake (18) top is provided with into water envelope piece (17), and this envelope piece links to each other with following ball float (15) by lever (7), fulcrum (6).Last water intake (4) directly communicates with little water tank (14) by last intake pipe (5).In addition, filter screen (2) is set, is provided with " V " shape cavity between filter screen top and the upper and lower water intake, in this cavity, a non-return water polo (3) is installed in the water inlet of right angle intake pipe (1).
Elaborate dynamic structure of the present utility model below again.
Working state when 1, intaking.
When intaking to solar water heater water tank, tap water direction of arrow in the figure enters right angle intake pipe (1), through filter screen (2), arrive " V " shape cavity, float non-return water polo (3), Zuo Lushui rises from following water intake (18) and arrives in the valve body (8), and the outlet pipe (16) bottom valve body directly enters the water tank from solar water heater water tank water intake (21), in addition, right wing water simultaneously on last water intake (4) process intake pipe (5) rise, in the through little water tank (14).At this moment, being same horizontal line with the interior water level of solar water heater water tank in the valve body (8) rises.When rising to designated water level, because of ball float (15) rising down, just drive lever (7) to upwarp, under fulcrum (6) effect, press down into water envelope piece (17), until sealing down water intake (18), this road just stops into water.Another Lu Shuicong goes up water intake (4) and continues to send water to little water tank (14) by last intake pipe (5), and overflows from the circular hole (13) of little tank top, flows into outlet pipe (16), enters in the solar water heater water tank then.Water level in solar water heater water tank and the valve body (8) is same horizontal line once more and rises, upper floating ball (12) also and then rises, when arriving second designated water level, upper floating ball (12) drives out water seal piece (9) by pull bar (10) and rises, and and then closed circular hole (13), tap water make water intake stop into water, so can not overflow from solar water heater water tank air outlet hole (19) and internally piloted valve air outlet hole (11).At this moment, water inlet finishes to solar water heater water tank.
2, working state during water.
People are when water, and the water in the solar water heater water tank flows out from water outlet (20), and the water level with solar water heater water tank in the valve body (8) is same horizontal line decline.In the decline process, because the hydraulic pressure in the little water tank (14) equals the normal pressure in the tap water intake pipe, the water seal piece (9) of dying temporarily can not fall and open circular hole (13), cold water must not enter in the little water tank from last water intake (4), and overflow from circular hole and to flow in the solar water heater water tank, so the water of emitting from solar water heater water tank water outlet (20) can maintain on the same temperature always.When drawdown when the setting value, and then just by fulcrum (6) pull-up water inlet envelope piece (17) slowly, following water intake (18) locates to begin a small amount of water inlet to the ball float (15) that descends.When the drawdown of solar water heater water tank during to 1/5 water line, water inlet envelope piece (17) is opened fully, tap water enters rapidly in the valve body (8) from following water intake (18), at this moment, upper floating ball (12) and go out water seal piece (9) owing to the interior decompression of little water tank (14) falls, opened circular hole (13), made water intake (4), water intake (18) solid flooding down, worked so again and again.
When tap water cut-off occasionally, non-return water polo (3) is closed the tap water water intake because of deadweight, in order to avoid the water in the solar water heater water tank flows backwards in water supply pipe.