Since the beginning of summer, temperatures have continued to rise, and typhoons have also escalated. Not long ago, 'Ai Yunni' and 'Ma Lisi' landed in Guangdong, and the south faced a wide range of stormy weather, which greatly affected the daily lives of residents. .
Many residents responded. In addition to being inconvenient to travel, even bathing became a big problem. Once the heavy rain slammed into the evening, the wind whistled and found that the gas water heater at home would emit an exit whistle. It was extinguished in less than a minute. Only the exhaust fan was left. It was switched off and then it was on fire. It was stopped, and later it could not be reached. There were also users who lived in the upper floors and found that the gas water heater was at its root. Can't beat the fire.
First, the reason why gas water heaters cannot be ignited in high wind weather
Why does a gas water heater in a windy weather strike like this? This is because the gas pipes of gas water heaters are constantly undergoing 'air flow' with the outside world - the exhaust gas generated by burning needs to be discharged into the air through the smoke pipe. Once the outdoor wind is blocked The smoke pipe will cause the combustion exhaust gas to not be discharged outdoors. The gas water heater with good safety will automatically detect that the outside air pressure is greater than the wind pressure discharged by the fan, and the flameout stops working. However, due to the low performance of some water heaters, exhaust gas accumulates in the interior. After too much, it will lead to an explosion of fire, which will make the gas water heater stop working. It is very dangerous.
And when the gas water heater is facing a strong wind pressure change outside the building, the outlet water temperature will also be hot and cold. The higher the floor, the greater the wind will be, and the more obvious this phenomenon will be!
Second, what circumstances are prone to gas water heaters can not fight?
1, encounter typhoon and other extreme weather
The typhoon originated in the tropical sea. The temperature is high. A lot of seawater is evaporated into the air to form a low pressure center. With the change of the pressure and the earth's own movement, the flowing air also rotates to form an air whirlpool that rotates counterclockwise. This is the tropical cyclone.
According to the World Meteorological Organization, the tropical cyclone center's sustained wind speeds at grades 12 to 13 (32.7 to 41.4 meters per second) are called typhoons, and there are strong typhoons and super typhoons.
The south of China is relatively close to the tropical sea, and the Pacific Ocean is the first to invade the tropical sea after the formation of a typhoon. Therefore, users in the south should do a good job of preventing typhoons.
2, the family lives in high-rise
Users living at high levels are vulnerable to 'undershoot'. As high-rise buildings block the flow of major winds, some winds collide with the top and sides of the high-rise buildings and flow toward the rear of the building. The flow will form a lower breeze, and the lower breeze wind will have a faster wind speed. This will create a vortex area on the windward side, which will lead to a different air pressure in the surrounding area.
The air will flow from high pressure to low pressure. The greater the pressure difference between the two places, the faster the air will flow. The stronger the wind blows, the higher the wind will be.
Therefore, high-level users' wind protection measures are very important for the use of gas water heaters on weekdays.
Third, how to deal with the impact of windy weather?
For the users in the South, the annual summer months are a huge test for gas water heaters. Typhoons will come from the 1st to the 2.3.4... so we have to prepare ahead of time, especially at the top Users, we must listen carefully!
First of all, for the effect of windy weather, our exhaust pipe can be equipped with an anti-wind pipe bend. Make sure that the flue is not facing the wind inlet, and that the exhaust gas is blown directly back into the pipe.
The second and most important, gas-fired water heater's wind-resistant adaptive force. It is very important to choose a good fan, I hereby recommend the side of the gas water heater.
Fantasy's current mainstream models basically use DC variable-frequency fans, and its wind resistance self-adaptability is very good. The maximum speed can reach 6500r/min*. According to tests conducted by Fangtai Laboratory, the highest wind pressure can reach 180MPa*, which is approximately equal to The state of the eight-level gale is to know that the nine-level gale has been able to blow the roof tiles!
Fangtai adopts DC inverter technology to perform 'air volume adaptive control' and adjusts the speed according to the outside air pressure. If the external wind pressure is too large due to a typhoon, or if the blocked fan circuit causes excessive fan blocking current, The control system will increase the fan speed to increase the exhaust capacity. If the fan speed is increased, the above situation cannot be eliminated. The gas shut-off valve will be shut down and shut down safely.
We must know that the traditional AC fixed-frequency fan is difficult to control. When faced with sudden and small wind pressure, it seems to be incapable of action. Some users say that the maximum speed can be used. Of course, how local tyrants can choose is all right.
At present, the mainstream type is equipped with a lower-mounted strong-drum fan. There are two installation methods for the fan. They are the upper-loading pump and the lower-loading drum. The upper-mounted fan has a high exhaust capacity, but the combustion efficiency is low. , And close to the combustion chamber, the ambient temperature is high, easy to blow out the fan. In contrast, the down-mounted fan does not have this concern, and the thermal efficiency is higher. Now the exhaust capacity of the bottom-mounted blower has been greatly improved, and on the set-top type It is even more than worthless.
As the saying goes, a good guy has three helpers. In addition to an outstanding fan, the cooperation of other components is also essential. When the windy weather occurs, the host computer will adjust to a wind-resistant system to ensure that all components can achieve the best resistance. Wind performance. At the same time, the multi-speed control of the fire row with the dual-channel gas proportional valve not only improves the overall wind resistance, but also allows the water temperature to remain stable, no longer cold and hot.
The typhoon season has already arrived. Prepare for wind resistance. Choose a qualified gas water heater to buy a reliable guarantee for the family's bathing experience. Add a peace of mind in the hot summer!