燃气真空热水锅炉是利用水在不同的压力下，沸腾温度有所差异的特性来进行工作的。在一个大气压下，水的沸腾温度是100℃，真空热水机组则是在-0.02Mpa以下的压力范围内工作的，对应的热媒水温度低于93℃，在真空热水机组所工作的压力下，燃烧使热媒水温度上升至饱和温度，并在水面产生相同温度的蒸汽。下面山东燃气锅炉厂家居给大家普及一下燃气真空热水锅炉的选用要点！
Gas-fired vacuum hot water boiler works by utilizing the characteristics of different boiling temperatures of water under different pressures. At one atmospheric pressure, the boiling temperature of water is 100 C, and the vacuum hot water unit works in the pressure range below - 0.02Mpa. The corresponding temperature of hot medium water is below 93 C. Under the pressure of the vacuum hot water unit, combustion makes the temperature of hot medium water rise to saturation temperature, and generates steam of the same temperature on the water surface. Next, Shandong Gas Boiler Manufacturers to popularize the gas vacuum hot water boiler selection points!
1. 真空热水锅炉选用主要控制参数为额定热功率，锅炉设计热效率，高出水温度，燃料种类等。
1. The main control parameters of vacuum hot water boiler are rated thermal power, boiler design thermal efficiency, high outlet water temperature, fuel type, etc.
2. 所选用产品设计热效率应不低于《工业锅炉通用技术条件》（JB/T10094-2002）中规定的下限值，及相关节能标准的规定值。
2. The thermal efficiency of the selected product design shall be no less than the lower limit value specified in the General Technical Conditions for Industrial Boilers (JB/T10094-2002) and the stipulated value of relevant energy saving standards.
3. 锅炉污染物排放浓度应符合GB13271-2001《锅炉大气污染物排放标准》的规定。
3. Boiler pollutant emission concentration should comply with GB13271-2001 "Boiler Air Pollutant Emission Standard".
4. 一般真空热水锅炉的供水温度不高于80℃，适用于低温热水采暖。
4. Generally, the water supply temperature of vacuum hot water boiler is not higher than 80 C, which is suitable for low temperature hot water heating.
5. 对于设在高层或多层建筑物内的锅炉房，热水锅炉单台热功率不得大于7MW，额定出口热水温度不高于95℃。同时应征得当地安全监察机构和消防部门的认可同意。
5. For a boiler room located in a high-rise or multi-storey building, the thermal power of a single hot water boiler shall not be greater than 7MW, and the rated outlet hot water temperature shall not be higher than 95 C. At the same time, the approval and consent of the local safety supervision organization and fire department should be obtained.
6. 选用锅炉时，应要求制造厂提供水阻力特性。宜选用名义工况流量通过锅炉的水阻力≤0.08MPa 的产品。
6. When selecting boilers, manufacturers should be required to provide water resistance characteristics. It is advisable to choose a product whose nominal flow rate is less than 0.08MPa through the water resistance of the boiler.
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