Tips to reduce gas consumption of gas boilers

Due to the tight supply of natural gas and the rising price of industrial natural gas, some natural gas boiler users and potential users are concerned about the consumption of gas boilers. How to reduce the hourly gas consumption of gas boilers has become the best way for people to seek to reduce costs. So , what should be done to achieve the purpose of reducing the hourly gas consumption of gas boilers?

In fact, it is very simple. As long as you understand the main reasons for the high gas consumption of gas boilers, the problem will be easily solved. If you don’t believe me, take a look at these tips compiled by the editor of Wuhan Nobeth:

There are two main reasons for the large gas consumption of gas boilers. One is the increase in boiler load; the other is the reduction in boiler thermal efficiency. If you want to reduce its gas consumption, you must start from these two aspects. The specific analysis is as follows:

1. The influence of load factors. The main reason is that in the absence of measuring instruments, we measure heat output according to conventional understanding. When the user is unstable, the heat consumption increases, causing the boiler load to increase. Since the boiler output does not have a measuring instrument, it will be mistaken for an increase in gas consumption;

2. Thermal efficiency decreases. There are many factors for the decrease in thermal efficiency. Here are some commonly encountered points and check them:

(1) Due to boiler scaling due to water quality reasons, the heat transfer efficiency of the heating surface decreases. The thermal resistance of scale is 40 times that of steel, so 1 mm of scale will increase fuel consumption by 15%. You can open the drum to directly check the scale situation, or you can check the exhaust gas temperature to determine whether scaling occurs. If the exhaust gas temperature is higher than the temperature given in the drawing, it can basically be determined to be caused by scaling;

(2) Ash and scale on the outer surface of the heating surface will also cause increased fuel consumption. This is mainly due to the fact that low temperatures can easily cause ash and scale to form on the outer surface of the heating surface. The furnace can be entered for inspection, and it can also be determined by detecting the exhaust gas temperature;

(3) The boiler has serious air leakage. Too much cold air enters the furnace and the oxygen content of the flue gas increases. If there is a flue gas oxygen level detector and the oxygen level of the flue gas exceeds 8%, excess air will appear and heat loss will occur. Air leakage can be determined by detecting the oxygen content of the flue gas;

(4) The quality of gas decreases and the concentration decreases. This requires professional analysis;

(5) The automatic adjustment of the burner fails. The combustion of the burner is mainly adjusted by the automatically adjusted “air-fuel ratio”. Due to the instability of the sensor or computer program, although the combustion is normal, it will cause “chemical incomplete combustion heat loss”. Observe the combustion flame. Red fire represents poor combustion, and blue fire represents good combustion.Conduct comprehensive analysis and processing based on the above content.