Gas water heater gas water heater design principle --- the water is very good in the heat exchange capacity of copper to flow , and gradually heated, heat accumulating chamber from the outer part of the heat absorbed , and then fully heat flow heat exchanger (gas heater and air-conditioning heat exchanger similar structure , the thermal efficiency of 85 %, while 60% ​​thermal efficiency stove immune ) , flow may be increased when the outlet 25C � ( such as tap water outlet is 25C � 50C �) , to higher temperatures , to reduce the flow to achieve , in order to lower the temperature of fire should be reduced .

Besides gas water heater heat load , much larger than the stove , the equivalent of several stove for heat , of course, air consumption is also equivalent to several stove .

If the water heater one minute can increase 25C � for a few liters of water , it is called a few liters of water heaters.

Gas Water Heater water control works --- When the cold water enters the water heater , through the valve, the pressure difference in the flow of water under the action ( venturi principle ) to promote the linkage stem water vapor , and make micro switch will pulse and a controller power is turned on , the solenoid valve is opened , after the ignition of gas , then through the ion detecting pin to detect the flame signal , to maintain normal combustion burner .

If you turn off the ignition failure or halfway , the ion signal is interrupted , the controller closes the solenoid valve , shut off the gas supply.

Ignition gas water heater works --- the way to use the ignition Changming fire, when cold water enters the water heater , through the valve, the pressure difference in the flow of water under the action ( venturi principle ) to promote the linkage stem water vapor open the valve, Changming fire ignited the gas , and make thermoelectric lotus ( electricity ) to keep solenoid valve is opened , if the middle stall , lotus no longer thermoelectric power generation, the solenoid valve is closed, cutting off the gas supply.

Works

Gas water heater , turn on the gas main valve, open the gas valve , gas pressure difference valve into A, B two-bedroom ; open water main valve , the main valve cold water tap all the way through into the water pressure valve , the other way flow heat exchanger , unequal pressure on both sides of the rubber membrane , pressure membrane to the base movement , water vapor driven ejector linkage movement to the left , middle ejector ejector lever left the power switch with the power turned on.
Electrical controls for high-voltage pulse is generated immediately after power sparks , while the miniature solenoid valve 1 is energized , the valve into the gas by a small fire burners, spark ignited a small fire . Water vapor ejector linkage movement to the left in place, the valve is an open , this time due to valve 2 is not open, the gas did not enter the main burner .
Heat sensor needle was a small fire , small fire flame feel the role of ionic conductivity , the signal is fed to the electrical controls for miniature solenoid valve 2 power supply , the valve is closed. From the total of the gas valve to the flow direction A room longer , gas continuously into the chamber B , when the B chamber at a pressure greater than the pressure chamber A , the rubber membrane due to the pressure difference across the A chamber is pressed , the rubber membrane of the rod with the movement to Room A , valve 2 is opened , the gas chamber through the C , D to the main burner chamber , formed by a small fire ignited fires , high temperature flue gas from the flame of the water flowing through the heat exchanger to produce a continuous rapid heating hot water heater into the normal working condition. A residual gas chamber so that self-extinguish small fires burn . Adjusting the size of the gas control valve and the size of the valve opening degree can be obtained for the desired temperature of the water used .
Feel the flame sensor needle signal to miniature solenoid valve 2 is closed at the same time , a small fire ignition electrical impulses stop discharging. Stop using the water heater, just off the main water valve . At this point , the water pressure valve recovery , the power switch off , valves 1 , miniature solenoid valve 1 closed, miniature solenoid valves 2 recovery normally open valve 2 is spring top tight closure , the flame goes out.