china hot water boiler seller

Hot water boiler in the school dormitory and classroom building are generally used for central heating, drinking water and bathing water aspects of teachers and students and so on. Shanxi Linxian County high school is an important educational school personnel training for the community. 2017, the school responded positively to national coal to gas and other environmental policies, but also to provide students with a more favorable living and learning environment, the school decided to phase out conventional coal-fired boilers, clean and environmentally friendly replacement for the gas boiler. After getting to know and choose the boiler industry, major companies, determined cooperation with professional production of clean fuel boiler fast boiler-by-side to provide a fast 4.2MW integrated condensing gas china hot water boiler seller (WNS4.2-1.0 / 115 / 70-YQ).

What is that boiler soot blowers? What impact on the operation of the boiler there? Soot Blower concept: long-term operation of boiler, heating surface fouling and coking occur, so that the deterioration of the heat transfer for the back pass, because the long-term accumulation of fuel, and then burning accident will occur which results in the boiler section after the time needed to work soot blowing heating surface, to clean the heating surface.

Hot water boiler circulating water system should have the following hot water circulation pump suddenly stopped to prevent the furnace water vapor and water hammer is provided with a check valve 1. protection bypass duct between the circulating pump inlet and outlet pipe , its diameter should be similar and the manifold, and the bypass passage cross-sectional area of ​​not less than 1/2 of the cross sectional area of ​​the main pipe; valve flow direction should be consistent with the direction of flow of the pump. 2. Set weight of formula inching valve in the inlet pipe section of the circulating pump, drain pipes which overpressure can open the access to the tank or drain. Second, china hot water boiler seller circulating water system is also designed to meet the following requirements: 1 should be mounted on each cut-off valve or valve outlet pipe boiler, boiler feed water, the supply should be located on the water shut-off valve and check valve. 2. The hot water boiler is running in parallel, the control valve to be provided on each boiler inlet, so that the deviation of parallel boiler water temperature does not exceed 10 ℃. 3. The portion of the high boiler outlet pipe should be installed and easy accumulation of gas and an exhaust gas collection means, not less than an exhaust valve DN20.4. Low system and the lower recesses, should be arranged drain valve and drain pipes . The hot water system should be water pipe back to facilitate the installation position Qingtao decontamination, before and after the decontamination and closing the valve should the pressure gauge, and a small charge of 1 to 2 ratio of the bypass pipe. 6. The boiler should be provided with a plurality of trap and sump for hotspots, catchment trap and drain valve shall be arranged, thermometers, pressure gauges.

Use of natural gas boiler, so what can energy-saving? Natural gas boiler. Effective heat value but its low calorific value of about 8500 kcal / cubic its high calorific value of up to 10,000 calories, the extra part in burning Nao process becomes superheated steam with the flue gas discharged out, the exhaust gas temperature can reach about 220 degrees to install a waste heat recovery tube in the flue gas outlet of the column, heated with hot flue gas is pumped into the preparation boiler water, you can save gas more than 5% ,, Thus, in terms of low calorific value of the thermal efficiency of the boiler can be 88% to 92% to 98% to 102% 1, to improve the conditions of the air flow encounters improved gas boiler gas and air two streams communicating condition, and an object thereof is to increase the contact area. The greater the contact area, the greater is the reaction area, strengthen the burning. Specific measures may be air and the gas stream into small strands, so that the two streams meet and intersect with a certain velocity; cell stream of gas (generally a gas) passes through and submerged in another stream of air, and the like. 2, enhance mixing, scrambling combustion gas boilers burning gaseous fuel is a single-phase reaction, ignition and combustion of solid fuels easily than, but the rate and extent of complete combustion is mixed with the combustion gas and air quality are closely related. Better mix, burn more rapidly and completely, the flame is short. Therefore, as long as the stability of the flame is not destroyed, it should enhance airflow velocity gas stream in the combustion chamber outlet or even a baffle at the inlet of a large resistance and the like obstacles, let hitting, red flame, increase turbulence in the airflow to strengthen the mix. 3, preheated air and gas to increase the temperature of gas and air, can be enhanced combustion reaction. It should therefore be preheated using waste heat of exhaust gas and air temperature, thereby increasing the combustion temperature and the flame propagation velocity of the combustion process to be strengthened. 4, rotation of the rotating stream and the recycle gas stream causes turbulence and mixing can be enhanced. Meanwhile, in the center of the rotation will form a reflux stream of large gas back area of ​​the boot cycle, both to strengthen the mixing, also extended the flue gas flow path and residence time within the gas boiler and reduces loss of incomplete combustion. 5, flue gas recirculation in order to improve the combustion gas temperature of the reaction zone of the boiler, the flue gas may be directed to a portion of the high-temperature combustion data, so that the end of the fuel mixed with the burning or combustible mixture, in order to improve the combustion intensity. But take note that the amount of flue gas recirculation should not be too large, otherwise it will dilute the combustible mixture and the hook due to excessive inert substance, but slows down the combustion, pyrolysis and even anoxia, resulting in loss of incomplete combustion gas boiler.

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