Floater of solar water heater water-temperature water-level probe

Abstract

The invention discloses a floater of solar water heater water-temperature water-level probe, wherein the floater is an open type hollow floater. The advantages of the invention are that: the solid or hollow floater is changed into the open type hollow floater by improving the structure of the floater, while in use, the enough flotation power of the floater is ensured and the inconsistent inside-outside pressure difference of the floater wall is improved, thus the service life of the floater is greatly prolonged and the open type floater can self regulate and self make up air, therefore the flotation of the floater can be kept for a long time.

Description

technical field [0001] The invention relates to a solar water heater water temperature and water level probe, in particular to a float for the solar water heater water temperature and water level probe. Background technique [0002] During the use of solar water heaters, since the water storage tank cannot operate under pressure, it is controlled by a microcomputer to automatically supply water. Therefore, judging the water level in the water storage tank is a key technology. Since the water level probe has been working in hot water for a long time, for node-type water level The probe is easy to breed scale, which leads to the failure of the water level probe. For the existing water temperature and water level probes that use floating balls, the floating balls are usually divided into two types. One is to use a solid float, and the solid float uses a material density less than Water density material to generate buoyancy, the other is to use a hollow sealed float. For solid ...

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Problems solved by technology

[0002] During the use of solar water heaters, since the water storage tank cannot operate under pressure, it is controlled by a microcomputer to automatically supply water. Therefore, judging the water level in the water storage tank is a key technology. Since the water level probe has been working in hot water for a long time, for node-type water level The probe is easy to breed scale, which leads to the failure of the water level probe. For the existing water temperature and water level probes that use floating balls, the floating balls are usually divided into two types. One is to use a solid float, and the solid float uses a material density less than water density material to generate buoyancy, the other is to use a hollow sealed float

For solid floats, with the passage of time, the amount of fouling on the surface increases and the high-temperature hot water penetrates and adsorbs its material, which may reduce its buoyancy and make it unable to float on water. For hollow floats, although they can be more It maintains a large buoyancy for a long time, but because it works in hot water for a long time, the internal and external pressure difference on the ball wall of the float is large, and because it works in a high temperature state for a long time, it is easy to deform, resulting in water leakage. In the event of water leakage, the float will sink, and the water level of the water tank cannot be sensed normally, resulting in abnormal display of the water level, or even water leakage, which will cause the solar water heater to fail and cannot be used

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