Special shower for gas water heater

Abstract

A special shower for a gas water heater comprises a valve body and a thermostatic cartridge and further comprises a regulating cartridge. The valve cartridge is provided with a hot water passage, a cool water passage and a constant-temperature water passage. The thermostatic cartridge is mounted in the valve body, and is communicated with the hot water passage and the cool water passage to mix cool water and hot water to output constant-temperature water. The valve body is further provided with an auxiliary cool water passage, the thermostatic cartridge is provided with an auxiliary cool water port correspondingly, and the auxiliary cool water port is communicated with the auxiliary cool water passage. The regulating cartridge is mounted in the valve body to control on and off of the auxiliary cool water passage so that the thermostatic cartridge realizes primary mixing or secondary mixing to output primary primary constant-temperature water or secondary constant-temperature water. The special shower for the gas water heater has the advantages that 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 constant temperature showers, in particular to a special constant temperature shower 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 decreasing; when th...

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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 tends to cause the flow of hot water to become smaller during temperature adjustment, resulting in repeated flameout and ignition problems in gas water heaters; gas water heaters have repeated flameouts and ignitions when the flow rate is small, resulting in intermittent cold and hot water. phenomenon, very inconvenient

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