热水锅炉的压力调节知识
    2016-9-6 10:55:55  文章来源:http://www.jnlzsb.com
    热水锅炉的运行压力是由供热系统决定的,一旦系统设计安装建成,并在设计工况下运行,该值即为恒定值。
      The operating pressure of the hot water boiler is determined by the heating system, once the system design and installation is completed, and in the design conditions, the value is constant.
      运行中锅炉压力的突然升高,一般是由于停电造成循环水泵中止运行,而使锅水汽化所致。此时送、引风机也已停止运转,应立即打开炉门及省煤器旁路烟道,扒出炉膛煤火,使锅水温度降低;如果自来水压力高于锅内静压时,可向锅内注人自来水,此时应关闭锅炉进水阀和出水阀,并开启集气罐上的放气阀,由此处排空气与热水,这样可使锅水一面流动,一面降温。待压力恢复正常后,所有阀均恢复到原来状态。如是非停电原因造成的锅炉压力升高,应采取如下措施:暂时停止燃料的供应,停止送风机运转,循环水泵继续运转,水温降低了,汽化现象消失,压力也就降下来了。
      In the operation of the boiler pressure suddenly increased, generally due to power failure caused by the suspension operation of the circulating water pump, and the vaporization of the boiler water. At this time, send fan has stopped running, open the door and economizer bypass flue chamber immediately, scrape out coal fire, so that the pot of water temperature; if the tap water pressure is higher than the static pressure, to the injection of tap water, you should turn off the boiler inlet valve and the outlet valve, and open the bleeder valve in tank the resulting row air and hot water, which can make a pot of water flow, side cooling. After the pressure to return to normal, all the valves were restored to the original state. If the boiler pressure caused by the non reason of power failure increases, should take the following measures: to temporarily stop the fuel supply, stop blower, pump running, the water temperature is reduced, vaporization disappears, pressure is reduced.
      运行中锅炉压力突然降低,一般是由于锅炉及系统缺水造成。引起锅炉及系统缺水的因素很多,可能是排污阀内漏、排污后未关严或热力管网泄漏;也可能是用户因暖气不热,人为地大量放水或直接取管网循环热水用于其他用途等。当锅炉压力偏低时,应加强系统补水,同时进行燃烧调节,恢复水压和水温。并应对锅炉、热力管网及用户进行全面检查,采取堵漏措施,尽快恢复正常运行工况。
      In operation, the boiler pressure is suddenly reduced, which is caused by the shortage of the boiler and the system. A lot of factors of boiler and water system may be caused by internal leakage, the sewage discharge valve is not closed tightly or after heat pipe leakage; the user may also be due to heating is not hot, a lot of water artificially or directly apply for other purposes such as circulating hot water pipe network. When the boiler pressure is low, the system should be strengthened to pay water, while the combustion regulation, to restore water pressure and water temperature. And to respond to the boiler, heat pipe network and users to conduct a comprehensive inspection, to take measures to restore normal operation as soon as possible.
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