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. Today, the decoration home decoration network Xiaobian brings you long-term knowledge, together to understand the relevant content!


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First, the working principle of the strong row water heater


1. The forced-discharge gas water heater forcibly discharges the smoke through an exhaust motor disposed above the water heater, so that the burned exhaust gas is quickly discharged outside. The gas heater is powered by an external plug. The internal parts mainly include: pulse igniter, ion induction probe, thermostat, air pressure switch, fuse (some gas water heaters have), start capacitor, exhaust motor, micro switch , valve control solenoid valve, water control valve, water and gas linkage, burner, circulating water tank, total circuit control package, ignition indicator, temperature indicator screen (old-fashioned), gas proportional control valve (old-fashioned), etc. The development of science uses some new technologies, and some new parts are slowly coming in. Some common parts are listed here.


2. In the case of power, water, and ventilation, the micro-switch is turned on due to the pressure of the water flow, the exhaust motor starts to work, and the pulse igniter starts to discharge. The gas control solenoid valve opens the airflow and enters the combustion chamber. When the electric spark is ignited, the circulating water tank is heated, and the hot water flows out quickly after the cold water is discharged. If the water temperature is higher than 50 degrees, limit the temperature controller to work, cut off the power, and the gas is extinguished. If the outdoor wind pressure is too large or the flue is blocked, the circulating water tank will be used for a long time, causing the water tank heat exchange sheet to melt and stick, the exhaust air is not smooth, the wind pressure switch will turn off the power supply, and the gas water heater stops working. Usually the wind pressure switch is more prone to failure. The performance is: the gas water heater can be started, but it will automatically turn off in a few seconds or a few minutes.


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Second, the strong row water heater classification


Strong row water heaters have two typical structures: exhaust and blast.


1, exhaust type


1) The exhaust-type strong-discharge water heater replaces the anti-winding exhaust hood of the flue-type water heater with an exhaust device (including a collecting hood, a motor, an exhaust fan, a wind pressure switch, etc.), and appropriately reforms the original control circuit. It can be done. The working principle is: cold water enters the cold water population, flows through the filter, water and gas linkage device, enters the water tank, and flows out from the outlet after the water tank is heated. After the gas enters the water heater, it passes through the filter, solenoid valve, gas volume regulating valve, water and gas linkage valve, and enters the gas nozzle. The combustion air is sucked from the room by the exhaust fan, and the gas is burned in the combustion chamber. The high-temperature flue gas is cooled by the heat exchanger and then forced into the outdoor exhaust fan.


2) The main feature of the exhaust-type strong-discharge water heater is that the flue gas is forcibly discharged to the outside to avoid indoor air pollution. From a safety point of view, the strong water heater has a qualitative improvement compared with the in-line and flue type, because safety performance is always the primary and most fundamental performance of gas water heaters; multiple safety protections are provided, except for conventional safety protection. In addition to the installation, the flue blockage and excessive wind pressure protection (to ensure that the flue gas does not leak into the room), the leakage protection, the fan fault protection, etc.; the intelligent control of the induced water heater of the mains, the high-tech adoption provides The necessary conditions and practice have proved that the introduction of commercial power in gas water heaters is necessary and reasonable.


2, blast style


1) The structure of the blast-type strong-discharge water heater is very different from that of the exhaust type. The water heater enters the water through the filter, the water flow switch, enters the water tank heat exchanger, and the water becomes heated after being heated. The gas enters the water heater and enters the gas nozzle through the filter, the double solenoid valve and the gas regulating valve. The combustion air is directly sucked from the indoor by the blower, pressurized into the sealed combustion chamber by the blower, and the gas is burned in the combustion chamber. The high-temperature flue gas is forced to be discharged from the exhaust port to the outside after being cooled by the heat exchanger.


2) The main features of the blast-type forced exhaust water heater: the flue gas is forcibly discharged to the outside, avoiding indoor air pollution and ensuring the safety of the user; using a micro-positive pressure closed combustion chamber, blast-type combustion method, strengthening Combustion and enhanced heat transfer, the thickness of the combustion chamber is reduced by about 50% compared with the flue-type water heater of the same capacity, realizing the miniaturization of the large-capacity water heater; using the water flow switch (electrical control method) to replace the differential pressure disc water-gas The linkage (mechanical), the perfect control system makes the structure of the water heater more simplified and the volume is reduced.


About the working principle and classification of the strong-discharge type water heater, we introduced it here. Today, Xiaobian brings you the tip of the iceberg of the strong-discharge water heater. I want to know more about the knowledge and decoration consultation of the strong-discharge water heater. Continue to pay attention to the decoration home network!


More related wonderful reading:

What is a strong water heater? How to use a strong water heater?

What is a forced drain water heater? Strong drain water heater principle

What is a straight-line gas water heater? What are the differences from the strong row?

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