Special thermostatic cartridge and water outlet structure for gas water heater

Abstract

Disclosed are special thermostatic cartridge and water outlet structure for a gas water heater. The thermostatic cartridge comprises a cartridge body and further comprises an auxiliary cool water port and an auxiliary mixing cavity. The cartridge body is provided with a mixed water outlet for discharging primary mixed water. The auxiliary cool water port is provided with an accelerating orifice which is used for accelerating cool water. The auxiliary mixing cavity is communicated with the accelerating orifice and the mixed water outlet to output primary constant-temperature water or secondary constant-temperature water. By the special thermostatic cartridge and water outlet structure, the regulation interval (38-50 DEG C) of water outlet temperature can be expanded, the minimum water outlet flow rate at the start of the gas water heater can be guaranteed, and extinction of the gas water heater is avoided.

Description

technical field [0001] The invention relates to the field of thermostatic valves, in particular to a special thermostatic valve core and water outlet structure for gas water heaters. Background technique [0002] At present, the working principle of the water-vapor linkage valve of the gas water heater is realized through a mechanical structure. When there is water flow through, the valve will open, thereby driving the push rod on the valve to move to push the gas valve. When the flow of water is greater, The greater the valve opening volume, the greater the gas output. [0003] Generally, the thermostatic valve used for gas water heaters needs to gradually reduce the hot water opening of the valve core when the temperature is lowered, resulting in a decrease in the hot water output of the gas water heater; when the hot water output of the gas water heater decreases Hours, due to the action of the water vapor linkage valve of the gas water heater, the gas flow is also decre...

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Problems solved by technology

[0004] From the above, it can be seen that the thermostatic valve used for gas water heaters has the following defects: 1. When the temperature is adjusted, the flow rate of hot water is likely to decrease, resulting in the problem of repeated flameout and ignition of the gas water heater; 2. The gas water heater has repeated flameout and ignition when the flow rate is small. , resulting in hot and cold water, which is very inconvenient; 3. In summer, the temperature cannot be lowered. When the temperature is lowered, the imagination of repeated ignition and extinguishment often occurs; 4. In winter, the temperature is often not adjusted high.

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