School education is the foundation for development of our country, to provide environmental and healthy living environment for students is our top priority school. Winter is fast approaching, fast boiler heating and for us to solve the problem of the coexistence of environmental protection, give us tremendous help provide heating in winter. --customer feedback

China's environmental protection industry development momentum is strong, the era of industrial gas boiler is inevitable. Now, there are many manufacturers purchase new gas-fired boiler or on the basis of the existing coal-fired boilers, the transformation of clean gas-fired boiler. How to make more provincial gas industrial gas boiler, is that many enterprises are most concerned about. Only good control at source gas costs in order to allow enterprises to get more benefits.

Hot water boiler maintenance method which hot water boiler hot water boiler maintenance methods if poor maintenance during outage or maintenance, the harm is great. Thus, the boiler shutdown should first remove the drum, the angle circle header, the internal pipe and the external wall and smoke vertical boiler scale, slag and all dirt. Fouling and cleaning inside the furnace water wall tubes and convection inside the smoke tube Huigou and boiler maintenance should be performed. Around its maintenance methods commonly used the following two methods. 1, wet maintenance: taking with a sufficient concentration of the alkaline solution in contact with the metal surface of the boiler, the alkaline metal surface to form a protective film to prevent corrosion in the metal. Usually of NaOH, Na2CO3 or formulated as protective Na3PO4 solution (NaOH per ton of oven 8 to 10 kg of water was added, Na2CO3 per ton 20 kg boiler water, boiler water Na3PO4 per ton 20 kg). The specific method is: the boiler all valves, baffles, manholes, hand holes, inspection door is locked, then the good previously dissolved NaOH, Na2CO3 or Na3PO4 solution was added to the boiler, the boiler and then filled with demineralized water. Alkali concentration in the furnace is the water released alongside consistent water gas (mainly O2 and CO2), the furnace may be raised Microflame warming (warmed before, the air valve to open the boiler, without air valve, safety valve available Instead of or relief valve) boiling water into the furnace, so that a natural circulation boiler water. After completion of the air valve (relief valve or safety valve) exhaust gas, and then close the air valve (relief valve or safety valve), then turn off the fire. Boiler water once a week should test to ensure that there is excess boiler water alkalinity. If insufficient alkalinity, should be added NaOH, Na2CO3 or Na3PO4.2, dried maintenance: desiccant absorbs moisture, boiler holding surface drying, to prevent corrosion. Lime (CaO) or anhydrous calcium chloride (of CaCl2) are commonly used as a desiccant. Specifically, the following: After the inner and outer surfaces clean boiler, boiler with Weihuo drying, then open wooden box containing a desiccant into the drum, the header, and furnace flue. The amount of the desiccant is determined according to the volume of the boiler (with large lime, in the boiler 2 to 3 kilograms per cubic meter, if anhydrous calcium chloride, from 1 to 2 kilograms). Then close all valves, flapper, check door, hand holes and Manhole prevent intrusion of external moisture. During the maintenance of open manholes, hand holes and door on a regular basis. If the desiccant is invalid, it should be replaced.

Condensate recovery system can be divided into open and closed recovery system recovery system.

Recovery system is open to a condensate recovery tank to the boiler, the condensed water recovery and utilization in the process, one end of the recovery pipe is open to the atmosphere, i.e., the condensed water collection tank is open to the atmosphere. When the lower pressure of the condensed water, can not be reached by the pressure from recycling properties, high temperature condensed water pump pressure-feeding. The advantage of this system is that the device is simple, easy to operate, a small initial investment; however, a large area of ​​the system, resulting in low economic efficiency, larger environmental pollution, and since the condensed water is directly in contact with the atmosphere, dissolved oxygen concentration in the condensed water improved, easy to produce equipment corrosion. This system is suitable for small vapor supply systems, a small amount of condensate, small amounts of secondary steam system. When using this system should minimize emissions of secondary steam.