The difference between hot water heating hot water boiler and steam heating boiler?
According to the different outlet media, we can easily divide the heating hot water boiler into hot water heating hot water boiler and steam heating hot water boiler. But many people still don't know how they are used. To put it simply, hot water heating hot water boilers are used for heating, such as bath centers, swimming pools, residential areas and other places are needed. It can even be said that as long as there is a need for heating, hot water heating hot water boilers are needed. At present, the maximum tonnage of hot water heating hot water boiler designed and produced by Zheng pot is 160t (116mw) circulating fluidized bed hot water heating hot water boiler. Steam heating hot water boiler Mainly used in chemical, building materials, textile and other industrial industries, used for production and steam supply, of course, it can also heat, but generally is the production workshop, industrial park heating, belongs to the case of cogeneration of heat and power.
Hot water as heat source is suitable for air conditioning, heater, low temperature oven, drying equipment, textile printing and dyeing hot water tank and all kinds of low temperature heating, air conditioning coil and heat transfer equipment and so on. Hot water as a heat medium has the following advantages:
1. Generally speaking, the heat medium temperature of hot water heating hot water boiler is low, the temperature difference between hot water boiler and flue gas is large, and the exhaust gas temperature of heating hot water boiler is relatively low, so the efficiency of heating hot water boiler is higher.
2. The recharge quantity of closed hot water system is small, the sewage discharge rate is much smaller than that of steam heating hot water boiler, and the waste of water is also smaller. The requirements for water quality of heating hot water boiler are low and the cost of water treatment is low.
3. The specific heat capacity of water is large, the hot water capacity in the system is large, and the heat storage capacity is strong. When the thermal condition or hydraulic condition fails for a short time, it will not obviously cause great fluctuation of heating condition.
4. The hot water heating system can be transported remotely by pump, which has the advantages of small heat loss and large heating radius, which can meet the requirements of urban central heating planning. The main disadvantages of hot water as heat medium are low temperature, small heat transfer coefficient and low utilization rate of heat energy.
Relatively speaking, steam heating hot water boilers are the most widely used in China, because the industrial coverage is too wide. The main advantages of steam heating hot water boiler are:
1. The utility model has the advantages of low cost and wide adaptability, and can meet the heat requirements of a variety of users with different requirements for pressure and temperature at the same time.
2. Non-toxic, can directly heat food and so on, even if there is running drip leakage will not cause harm to the environment;
3. The steam temperature is high and the latent heat of vaporization is large. The heat transfer area of the equipment can be reduced and the cost can be reduced by relative hot water.
4.The heat inertia is small, and the steam supply is hot and cold when it stops. Steam heat medium is difficult to recover condensate water, resulting in latent heat and waste of water resources. Even if there is a condensate recovery device, in the process of condensate recovery, because the water is easy to dissolve oxygen and other impurities, it is also easy to cause harm to the heating hot water boiler. The impurities such as oxygen and salt in the feed water will cause the scaling and corrosion of the heating hot water boiler, which will affect the safety and energy saving of the heating hot water boiler.
