In order to use hot water more conveniently, people will install water heaters at home. Nowadays, the types of water heaters are very rich, and the strong-discharge water heaters are deeply loved by consumers. So what is a strong-discharge water heater? What is the principle of a strong drain water heater? Let's take a look at the decoration home decoration network Xiaobian.
What is a forced drain water heater?
The strong-discharge type water heater is a heat exchanger with a particularly long heat transfer tube and a metal contact area, which transfers the heat of the burned gas to the metal sheet to heat the water, so that the temperature of the exhaust gas is particularly high. Low, this heat exchanger has an extremely high thermal efficiency.
The strong row type is based on the flue type. A flue gas motor is added to exhaust the exhaust gas to the outside through the flue. During operation, the flue gas is forcibly discharged to the outside through the flue, but the oxygen required for combustion is still taken. From the interior.
Principle of strong row water heater:
1. After the water, electricity and gas are connected, when the cold water flows through the water flow sensor, the worm wheel installed at the inlet of the water flow sensor starts to rotate, and there is a permanent magnet on the worm wheel. The peripheral magnetic field changes regularly during the rotation, Hall sensing When the component senses a change in the magnetic field, it emits a corresponding pulse signal.
2. After the controller receives the pulse signal, the fan is started to rotate at high speed for 2s , and the wind pressure switch is closed. At this time, the fan runs at low speed and issues an ignition command. The discharge needle starts to discharge. After about 0.5 s , the controller provides an electric signal to the solenoid valve and the proportional valve. The solenoid valve and the proportional valve open the valve under the action of the electric signal to open the gas passage. The high-pressure gas flows out of the nozzle through the valve body (with a certain amount of air ) and enters the burner. After the shrinking tube and the mixing tube, it flows out from the fire hole, and under the action of the secondary air, the discharge spark is ignited and burned.
3. After the ignition, the induction pin feeds the ion sensing signal back to the controller. The controller sends a pulse frequency according to the water flow sensor (the larger the water volume, the higher the pulse frequency, and vice versa ) , the temperature difference between the set temperature and the outlet water temperature, and the adjustment of the gas proportional valve opening degree ( gas flow rate ) and the fan speed until The actual outlet temperature is the same as the set temperature.
4. After use ( or 20 minutes timeout ) , close the water inlet or outlet valve. The worm wheel stops rotating in the water flow sensor. No pulse signal is emitted. The controller will send a signal to close the solenoid valve and proportional valve. The flame will be extinguished and the fan will run. Stop after 15s ~ 2bs .
5. During operation, press the “△†and “▽†keys on the operation panel to adjust the water temperature. The controller issues a command to adjust the proportional valve opening (the gas flow changes ) to reach the set temperature. If the water flow changes, the worm wheel speed changes accordingly, the pulse frequency also changes, and the controller issues a command to adjust the gas flow ( firepower ) to reach the set temperature. At the same time, the outlet water temperature sensor detects the change of the outlet water temperature, and the controller sends a command to adjust in real time.
The above is what Xiaobian brought to you. What is a strong row water heater? The whole content of the principle of strong row water heater, I believe that everyone has a basic understanding of the strong row water heater after reading this article, if you want to know more about decoration consultation, please click to enter the decoration knowledge channel .
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