The vacuum boiler mainly refers to the micro-negative pressure boiler whose internal gas pressure is lower than the external atmospheric pressure. The lower the gas pressure, the lower the boiling point, so that the water boils at low temperature and generates steam, and the overall efficiency of the boiler is higher.
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Vacuum boilers on the market today can be divided into two categories according to fuel.
First, electric heating vacuum boiler.
When the electric heating vacuum boiler is operated, its internal environment is in a vacuum state. At this time, the oxygen in the intermediate medium water is discharged to the outside of the electrothermal vacuum phase change boiler, so that oxidative corrosion is not caused in the boiler, which may cause damage to the equipment. At the same time, the material of the heat exchanger part of the electric vacuum hot water boiler is made of stainless steel and will not corrode. In addition, the electric vacuum hot water boiler only needs to add a small amount of heat medium water at a time, and it will not increase or decrease during operation, so there is no scale inside.
Second, fuel (gas / coal) vacuum boiler.
Most of these vacuum boilers use imported burners, which have high combustion efficiency and extremely low noise and exhaust emissions. Internally, an exchanger made of stainless steel is used to ensure high heat exchange efficiency and to ensure clean water quality. At the same time, its smoke pipe is equipped with a spiral spoiler to improve heat transfer efficiency and reduce operating costs. In addition, it adopts a square structure as a whole, and the boiler and the heat exchanger are designed in one piece, which makes the structure compact and small in appearance.
Through the above classification of vacuum boilers, and to illustrate the characteristics of different categories, so that everyone knows their relevant knowledge. This part of the knowledge is the basic knowledge of the purchase of vacuum phase change boilers, we need to keep in mind, in order to make the most suitable choice when choosing the purchase, choose the boiler equipment.
With the successful development of vacuum hot water boiler, this type of boiler has become an ideal thermal equipment, so it is popular in many small enterprises for its advantages. But how to choose a good vacuum hot water boiler is still an issue for many enterprises. Besides quality and price, when choosing vacuum boiler, we should take some factors into account as follow.
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vacuum hot water boiler manuactured by ZG Boiler can burn gas or oil as fuel
The fuel should be considered first, because the cost is related to it directly. The boiler can burn gas and oil. We could receive the effect of environmental protection furthest by using natural gas, but the cost of it maybe higher in some places.
The evaporation is also called the load of boiler, which is exactly the needed quantity of hot water or steam. The unit of it is t/h, and the capacity of the vacuum hot water boiler in ZG Boiler is 0.5-6 t/h. We should choose the suitable capacity of boiler to avoid energy waste and save cost.
Compared with the traditional boiler, the upper half vacuum steam chamber of vacuum hot water boiler is set in heat ex-changer. According to the usage of boiler, the heat ex-changers are divided into three types, for heating, sanitary hot water, hot water. Choosing the suitable type of heat ex-changer is vital for every enterprise.
What’s more, we should also pay attention to the control cabinet. Only when we choose a high quality of control cabinet, can the boiler perform well and the maintenance fee be reduced.
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