A multifunctional safety valve

Abstract

The invention discloses a multifunctional safety valve which mainly comprises a ball valve body, a ball valve element and a ball valve control device. The multifunctional safety valve is characterized in that a high-pressure one-way safety valve and a low-pressure one-way safety valve are arranged side by side on the ball valve body; a communication hole is formed between the high-pressure one-way safety valve and the low-pressure one-way safety valve; the high-pressure one-way safety valve is provided with an overflow hole; the ball valve body is also connected with a movable joint nut; and the ball valve element is provided with an overflow passage. The multifunctional safety valve has the characteristics that the multifunctional safety valve has a simple structure and is convenient to install; a pressure bearing water tank has long service life; secondary safety protection is implemented; a safety protection function is reinforced; the condition that the water tank is easy to damage and even crack due to an excessively high pressure is prevented; and the like.

Description

Technical field [0001] The invention relates to a solar heating device, in particular to a multifunctional safety valve. Background technique [0002] At present, with the continuous improvement of people's living standards and the rapid upgrading of water heater products, various electric water heaters, split solar water heaters, and pressure-bearing water heaters are gradually being popularized and used. Their water tanks are generally made into pressure-bearing types to ensure water supply. There is a suitable pressure from time to time, which can effectively meet the pressure requirements, and is especially suitable for high-rise buildings where ordinary solar water heaters cannot be installed on the roof. The known pressurized water tank for water heaters, when using water normally, opens the tap water inlet valve to maintain a certain water supply pressure, but when the water is stopped, in order to prevent the hot water from flowing back in the water tank or the water...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of the existing pressure-bearing water tanks for water heaters that are easily damaged or even broken due to too high pressure, and the heat exchange efficiency is low, and provide a multifunctional safety valve with simple structure, convenient installation, and low heat transfer efficiency. The pressurized water tank has a long service life, realizes secondary safety protection, enhances safety protection functions, and prevents the water tank from being easily damaged or even broken due to excessive pressure.

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