CN2369164Y - Automatic open/shut valve for inlet/outlet of solar water heater - Google Patents

Abstract

The utility model relates to an automatic opening and closing valve for water supply and water drain of a solar water heater, which comprises an upper and a lower concentric valve bodies, wherein, the inner cavities of the two valve bodies are communicated with each other, and the upper end of the upper valve body is open and is higher than the top of a solar water storing tank. The inner of the cavity of the upper valve body is provided with a float, the lower end of the lower valve body is communicated with a water supply and drain pipe, and the upper part of a valve of the lower valve body is communicated with the lower part of the inner cavity of the water storing tank. The lower part of the valve is provided with a conic valve core or a global valve core, the top of the valve core is provided with a connecting member, and the valve core is fixedly connected with the lower end of the float by the connecting member. The solar water heater can automatically supply water by the valve, and the original overflow pipe is omitted. The utility model can also be used in other occasions requiring water level limitation and water automatic opening and closing and used for other liquid containers requiring water level limitation and automatic opening and closing.

Description

Be used for the solar water heater automatic switch valve of water up and down

The utility model relates to the improvement of solar water heater, is specifically related to the valving of water up and down.

Solar water heater has obtained using comparatively widely at present.In order to solve upper and lower water problems, general solar water heater needs to be hinged with two water pipes between tank and subscriber's outlet, wherein the upper and lower water of confession is used, another root is as overflow pipe, this pipe tipping is on the top of storage tank, and promptly when to water on the tank during to this interface tube place, water flows to subscriber's outlet from overflow pipe, play the warning effect, make user's valve-off in time.For waste or the current of preventing sealing enter one-tenth " flood " in the family, the end user always keeps in the overflow pipe exit when last water usually.Because the end user can not control the pressure of running water, therefore go up water speed and can not control.When hydraulic pressure from the beginning was low, the last water time can be very long, reaches several hrs sometimes, and it is inconvenient that the user feels deeply.

The purpose of this utility model is, at deficiency of the prior art, the water supply and drainage mechanism of solar water heater made improvements, and a kind of solar water heater automatic switch valve of water up and down that is applicable to is provided, and uses with convenient.

On the solar water heater described in the utility model, following water automatic switch valve, include, the concentric valve body that following two inner chambers communicate, the lower end of following valve body and upper and lower conduit are connected, it is characterized in that, the upper end of upper valve body is uncovered, its port part is higher than the storage tank top, one floating drum is arranged in the inner chamber of upper valve body, the below of following valve body valve is provided with taper shape or spherical valve core, the vertex of a cone or ball top at spool are equipped with a connection piece, floating drum lower end in the other end of this connector and the upper valve body is connected, and has water pipe and storage tank inner chamber bottom to connect on the top of following valve body valve.Described connector can be flexible chain rope, also can be the rod member of rigidity.

Automatic switch valve described in the utility model, when in the storage tank when anhydrous, under the effect of gravity, spool falls to away from valve, and floating drum also drops on the upper valve body bottom.On using artificial solar water heater storage water tank during water, water enters down valve body from bottom to top and enters storage tank by the valve that opens wide, also enter simultaneously upper valve body gradually, buoyancy function rises floating drum gradually, and the storage tank water completely interior water level of its upper valve body of back continues to rise, and the interior spool of valve body rises to make floating drum drive down thus, until complete valve-off, water is stopped automatically, thereby saved the trouble that needs the people guarding overflow pipe, the further perfect function of existing solar water heater.On the other hand, from the storage tank to the subscriber's outlet, only need a pipeline that is used for upper and lower water, saved original overflow pipe that is used to report to the police.

The utility model can not only be used for solar water heater, also can be used for the occasion that other need limit water level or require automatic switch water, for example water tower.The utility model needing can also be used for automatic switch and other spacing liquid container.

Be further described below by embodiment and accompanying drawing thereof.

Fig. 1 is a kind of example structure schematic diagram of the present utility model.

Among the figure, (1) is cylindrical upper valve body, and its upper end is uncovered, and there is through hole its lower surface, and tubular connector (3) makes upper valve body (1) and following valve body (5) be fixed into integral body, and inner chamber communicates.(2) for being placed on the floating drum in the upper valve body chamber, this cylindrical shell radial dimension is greater than the radial dimension in upper valve body bottom surface aperture.(4) be the chain rope, the upper end of this rope is connected the lower end of floating drum (2), and the lower end of this rope is connected down the cone top part of the cone plug (6) in the valve body.(7) be the upper and lower conduit road of water heater.(8) be the be connected water pipe of following valve body with storage tank (10) bottom, this device is provided with and storage tank top water pipe connecting (9) in the bottom of upper valve body (1), to make water and the water level in the upper valve body in the storage tank keep balance better, the upper valve body of this moment can the while double as be the gas outlet of storage tank also, saves the former upper vent of storage tank.In the use, when the anhydrous situation of storage tank, floating drum (2) is bearing on the bottom surface of upper valve body, and spool (6) drops on down the below of valve body valve, and valve opens wide.After the user opened the running water switch that is used for water, then water entered down valve body from bottom to top from pipeline (7), and entered storage tank (10) by valve through connecting water pipe (8).Water enters in the process of storage tank and also enters upper valve body gradually, and floating drum is upwards propped up gradually, and therefore drives spool near valve, and when the position of floating drum was enough high, then spool (6) valve-off fully stopped water automatically.After the user need use hot water and open hot-water switch, the water of valve body lower portion at first flowed out under upper and lower conduit road (7) reached, and the pressure in the following valve body reduces gradually.Under the effect of gravity, spool falls gradually, and valve opens wide, and the water in valve body top and the upper valve body is flowed out rapidly, and floating drum also drops to the diapire place of upper valve body gradually.Valve body (5) entered the upper and lower conduit road and flows to subscriber's outlet under the valve of water in the storage tank through connecting water pipe (8), opening wide reached.

In the present embodiment, the connector that is used between floating drum and the spool is the chain rope that flexible characteristic is arranged.In actual the use, also can replace flexible chain rope with the rod member of rigidity, cooperate with it preferably as being provided with simultaneously that the hole is used for guiding on upper and lower valve body, its effect will be better.

Claims (4)

1. An automatic switch valve for the upper and lower water of solar water heaters, comprising a concentric valve body with upper and lower inner cavities connected, the lower end of the lower valve body is connected with the upper and lower water pipes, it is characterized in that the upper end of the upper valve body It is open, and its port is higher than the top of the water storage tank. There is a buoy in the inner cavity of the upper valve body. A conical valve core is arranged under the valve of the lower valve body. A connecting piece is installed on the top of the cone of the valve core. The connecting piece The other end of the valve body is fixedly connected with the lower end of the buoy in the upper valve body, and a water pipe is connected with the lower part of the inner chamber of the water storage tank on the upper part of the valve body of the lower valve body. 2. The automatic on-off valve as claimed in claim 1, characterized in that the conical spool below the lower valve body can be replaced by a spherical spool. 3. The automatic on-off valve as claimed in claim 1, characterized in that said connecting member can be a flexible chain. 4. The automatic on-off valve according to claim 1, characterized in that said connecting piece can also be a rigid rod.

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