CN2425352Y - Water level indicator for solar water heater - Google Patents

Abstract

The utility model discloses a water level indicator for a solar water heater. A protective pipe is inserted into a water storing tank of the water heater, a Hall element is arranged in the protective pipe and a float which is inlaid with a permanent magnet is sheathed outside the protective pipe. The indicator has the advantages of flexible and reliable action, no scale formation and corrosion resistance.

Description

The water level display of solar water heater

The utility model relates to solar water heater, relates in particular to the display device of water heater water storage tank water level.

Solar water heater makes full use of sun power with it, and free of contamination significant advantage entered huge numbers of families, is subjected to users' popular welcome.At present, be connected with two long pipelines on the market on the water storage tank of common solar water heater, a water supply and sewage that is used for water storage tank; Another root then only is used to indicate the overflow pipe of water storage tank full water amount, when when water storage tank feed cold water arrives the full water position, promptly there is water outwards to flow out in the run-down pipe, thereby the prompting user stops to send water, but this mode not only needs a very long pipeline, and user's carelessness slightly, will a lot of water sources of overflow, cause very big waste, it is very inconvenient to use.Therefore, begin again on the market to have occurred directly inserting in the water storage tank with two electrodes, to show the display device of water level, water level in water storage tank arrives certain position, water liquid is connected two electrodes and is given the alarm to the people, though this device can remove run-down pipe, and can realize remote showing, the prompting ability is strong, but, two electrodes contact with water for a long time because directly inserting in the water liquid, electrode fouling and corrosion phenomena appear inevitably, electrode sensitivity reduces gradually, and water level shows that accuracy descends, even does not show fully.

The purpose of this utility model provides a kind of being active in one's movements, the solar water heater level displaying device of long service life.

In order to achieve the above object, the water level display of the utility model solar water heater comprises water storage tank, is inserted with pillar in the described water storage tank, in this pillar Hall unit is housed, and is embedded with permanent magnet on the buoy of pillar socket.

Adopt said structure,, realized contactless measurement water level owing to adopted the sensor of forming by Hall unit and permanent magnet; Hall unit is loaded in the sheath in addition, does not directly contact with water liquid, has avoided fouling and corrosion phenomenon fully, keeps water level to show reliably and with long-term, has prolonged the serviceable life of display.Because the dynamic response characteristic of Huo Ershi element is good, show accurately rapidly again, thus the sensitivity that has effectively improved display.

Below in conjunction with accompanying drawing embodiment of the present utility model is described.

Fig. 1 is the structural representation of a specific implementation method of the water level display of the utility model solar water heater.

Water level display for solar water heater shown in Figure 1, vertically be fitted with pillar 4 in water storage tank 5, pillar 4 adopts enclosed construction, three Hall units 3 (the Hall unit number can increase and decrease according to actual conditions) are equipped with on the edge highly successively in the pillar 4, the position of going up a Hall unit most is corresponding with the peak level of water liquid 6, all the other elements are positioned at differing heights, to show the height of water level of different aspects, inform the water yield in people's water storage tank.The buoy 1 of round at the outside of pillar 4 suit, the proportion of buoy material is lighter than water, is embedded with permanent magnet 2 on the buoy 1, and buoy 1 slides up and down along pillar 4 with the height of water liquid 6 waters surface.When buoy 1 and on permanent magnet 2 when floating to the correspondence position of Hall unit, the controller 9 that is connected with Hall unit 3 circuit shows water level with acoustic and light information, controller 9 also can send electric signal, with the solenoid valve in the control water heater pipeline, to realize the automatic switch water heater pipeline.When cold water when feed water reaches the full water amount in water storage tank from supplying water 8, buoy is floating, and this moment, Hall unit 3 shouted a shout by controller 9 to going up most Hall unit 3 correspondence positions, and the prompting people turn-off water supply, also can directly turn-off the solenoid valve on the supply channel.Hall unit 3 sealings are fixed in the pillar 4, and Hall unit 3 is not contacted with water liquid, have stopped the fouling and the corrosion of sensing element, have improved sensitivity and have shown reliability, and whole display life is prolonged.Also comprise feed water inlet 8 and water storage tank blow vent 7 in the foregoing description.

Claims (3)

1, a kind of water level display of solar water heater, comprise water storage tank (5), it is characterized in that: be inserted with pillar (4) in the described water storage tank (5), Hall unit (3) is housed in this pillar (4), and be embedded with permanent magnet (2) on the buoy (1) of pillar (4) socket.

2, water level display according to claim 1 is characterized in that: a Hall unit (3) is housed in the described pillar (4) at least.

3, water level display according to claim 1 and 2 is characterized in that: described Hall unit (3) is connected with controller (9) circuit.

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