Background technique
Solar water heater is approved by users gradually with its good performance, user's cumulative year after year of solar energy is installed, but,, be communicated with user's water pipe by pipeline because solar energy all is installed in outdoorly usually, all the time water in the pipeline, after the user used up hot water, the hot water that has in the pipe can be cooled to cold water again, so both waste water resource, reduced the utilization ratio of hot water again, more very be northern user to winter then have 3-4 month and do not use solar water heater.Reason is exactly that pipeline freezes.The someone adopted the solar water-temperature water-level instrument that has automatic loading water in recent years, can bring many convenience to people, so it is also increasing that the user of water-temperature water-level instrument of automatic loading water also is installed when solar energy is installed, make some exhaust-valve have no usage, reason is that exhaust-valve could be to the water tank water filling under the water supply state, the exhaust-valve emptying that also has is not thorough, the phenomenon that has the aqueous vapor cocurrent flow, the exhaust-valve that has is owing to be furnished with direct current generator and reducing gear, make complex structure, piston and the fragile seal ring of valve body repeated friction are seeped into the motor room with this water in addition, cause motor to damage out of use defective.
Summary of the invention
The purpose of this utility model provides a kind of with low cost, and is simple in structure, can play synergy, the pipeline emptying valve for solar water heater of long service life with existing solar energy automatic water feeding instrument.
In order to overcome the deficiencies in the prior art, the technical solution of the utility model is to solve like this: comprise that a valve body connects a valve seat, the valve body coil has been intertwined and connected on its valve body, body cavity is equipped with the valve body piston, permanent magnet and cushion rubber are installed respectively on the valve body piston, one end of valve body connects valve body jump ring and solar water container connecting port, the other end connects valve seat, connect the solar energy outlet conduit on the valve seat, connect water injection valve and outlet valve on the solar energy outlet conduit respectively, valve seat connects the air inlet valve body by set screw, suction valve intracoelomic cavity bottom is provided with float, buoy upper is installed cushion rubber, suction valve intracoelomic cavity top is provided with air inlet valve body piston, cushion rubber is equipped with in air inlet valve body piston lower end, permanent magnet is equipped with in the upper end, air inlet valve body jump ring is equipped with on permanent magnet top, air inlet valve body jump ring one side is installed airstrainer, the suction valve body coil has been intertwined and connected on the external circumference of suction valve, suction valve body coil and valve body coil are connected in series, the rectifier input end is connected with civil power 220V electrical network, output terminal is connected lever type commutation automatic reset switch one end, the lever type commutation automatic reset switch the other end is connected on the valve body coil, and the suction valve body coil is connected the lever type commutation automatic reset switch the other end.
The utility model compared with prior art, with low cost, simple in structure, can play synergy with existing solar energy automatic water feeding instrument, long service life, the effective same flow phenomenon of gas solved water, after the emptying, identical in the pipe with external atmosphere pressure, realize thorough emptying, the air inlet valve body is provided with airstrainer, solved because the suction of air particles influence the valve body performance, with the water-temperature water-level instrument of solar energy automatic loading water can cooperation with service in the user, the interior piston of exhaust-valve is sealed in the valve body fully, stop the infiltration phenomenon, prolonged working life.
Embodiment
Accompanying drawing is embodiment of the present utility model.
Below in conjunction with accompanying drawing summary of the invention of the present utility model is described further:
With reference to Fig. 1, shown in Figure 2, a kind of pipeline emptying valve for solar water heater, valve body 1 connects a valve seat 20, valve body coil 4 has been intertwined and connected on its valve body 1, valve body 1 inner chamber is equipped with valve body piston 3, permanent magnet 7-1 is installed respectively on the valve body piston 3,7-2 and cushion rubber 8-1, one end of valve body 1 connects valve body jump ring 16 and solar water container connecting port 15, the other end connects valve seat 20, connect solar energy outlet conduit 14 on the valve seat 20, connect water injection valve 18 and outlet valve 19 on the solar energy outlet conduit 14 respectively, valve seat 20 connects air inlet valve body 2 by set screw 13, air inlet valve body 2 inner chamber bottoms are provided with float 9, cushion rubber 8-3 is installed on float 9 tops, air inlet valve body 2 inner chamber tops are provided with air inlet valve body piston 6, cushion rubber 8-2 is equipped with in air inlet valve body piston 6 lower ends, permanent magnet 7-3 is equipped with in the upper end, permanent magnet 7-3 is equipped with on top air inlet valve body jump ring 17, air inlet valve body jump ring 17 1 sides are installed airstrainer 10, suction valve body coil 5 has been intertwined and connected on air inlet valve body 2 excircles, suction valve body coil 5 is connected in series with valve body coil 4, rectifier 11 input ends are connected with civil power 220V electrical network, output terminal is connected lever type commutation automatic reset switch 12 1 ends, lever type commutation automatic reset switch 12 the other ends are connected on the valve body coil 4, and suction valve body coil 5 is connected lever type commutation automatic reset switch 12 the other ends.Wherein produce magnetic force after civil power 220V and suction valve body coil 5,4 conductings of valve body coil, commutation drives valve body coil 4 respectively to magnetic field boundary magnetic force, air inlet valve body piston 6 is done upper and lower motion in valve body by exchanging, and the effect of float 9 is not excessive by water.
At least be provided with two or more guiding ribs 21 on said valve body outside piston week.
Be provided with the annular flow water channel between the circle in outside piston in the said body cavity and the valve body.
Be provided with annular flat passage between the circle in float excircle in the said suction valve intracoelomic cavity and the air inlet valve body.
Be provided with annular flat passage between the circle in outside piston week in the said suction valve intracoelomic cavity and the air inlet valve body.
The utility model can be installed on any a solar energy easily.
Working principle is: when being the pipe evacuation state by the water supply state exchange, press the emptying end of lever type commutation automatic reset switch 12, the direct current (d.c.) that rectifier 11 produces flows through the electromagnetic coil 4 of polyphone, permanent magnet 7-1 polarity above in the induction field that electromagnetic coil 4 is produced and the valve body inner carrier 3 is opposite, opposite in the permanent magnet 7-2 polarity below piston 3 with top permanent magnet 7-1, but they are fixed in the piston 3, power between them is inoperative, but it is identical with the magnetic field polarity of bottom, magnetic field in the magnetic bottom, valve body piston 3 has enough big downward power offset top permanent magnet 7-1 the power of valve body jump ring 16 to be moved downward, the lower nozzle shutoff has been stopped water supply like this.Meanwhile, the top induction field that coil 5 on the air intake valve body 2 is produced is identical with permanent magnet 7-3 polarity in the air intake valve body piston 6, and air inlet valve body piston 6 has power upwards, and air inlet piston 6 moves upward, and run into air inlet jump ring 17, permanent magnet 7-3 holds air inlet jump ring 17 in the piston 6, even if moment, air inlet piston 6 can not fall down yet, air airstrainer 10 on air inlet valve body 2 like this, air inlet piston 6, float 9 peripheries enter pipeline, realize pipe evacuation.
When being converted to the water supply state by emptying state, press the water supply end of commutation automatic reset switch 12 when shouldering bar, the electric current that rectifier 11 produces turns to through lever type commutation automatic reset switch 12, permanent magnet 7-1 polarity above in the reverse induction magnetic field that is produced and the valve body inner carrier 3 is identical, but it is opposite with the permanent magnet 7-2 polarity below the piston 3, their induced force mutual superposition has the power that enough makes progress greatly, valve body piston 3 is moved upward, and run into valve body jump ring 16, permanent magnet 7-1 above in the valve body piston 3 holds valve body jump ring 16 firmly again and does not fall, meanwhile the induction field that produced of the electromagnetic coil 5 on the air inlet valve body 2 is opposite with permanent magnet 7-3 polarity in the air inlet piston 6, make air inlet piston 6 have enough power to offset air inlet piston 6 top permanent magnet 7-3 the suction of air inlet jump ring 17 is moved downward the shutoff suction port, because under the water supply state, valve body 1 inner chamber and air inlet valve body 2 inner chambers are negative pressure state, cause air inlet piston 6 to have bigger power to make the tightr of suction port shutoff, so just just in time avoided owing to the suction port bad sealing, and the same flow phenomenon of aqueous vapor that produces.
On the water-temperature water-level instrument of the automatic loading water under emptying state begins during water.Under the effect of last water hydraulic pressure, the impulse force of water will enter solar water heater water tank to valve body 1 inner carrier 3 jack-up, meanwhile, from air inlet valve pocket bottom, under floating function, float 9 moves upward and blocks the hole 22 of damming water through the valve body inboard aperture, cause water not excessive, and do not influence automatic loading water.
Learn that by top narration pipeline emptying valve for solar water heater provided by the utility model is owing to adopt electromagnetic coil, the current supply circuit of electromagnetic coil, air inlet valve body, permanent magnet are realized solar tube emptying.