When the 2 ton steam boiler operates, the working fluid in the evaporating heating surface will have pulsation phenomenon, and its flow rate will fluctuate periodically with time. Moreover, the hydrodynamic characteristics are multi valued. In addition, the direct current steam boiler consumption of water pressure head is relatively large.
當(dāng)2噸蒸汽鍋爐運(yùn)行工作狀態(tài)下的時(shí)候，其蒸發(fā)受熱面中的工質(zhì)將存在脈動(dòng)現(xiàn)象，其流量會(huì)隨著時(shí)間的變化作周期性的波動(dòng);而且水動(dòng)力特性呈多值性。另外，直流蒸汽鍋爐消耗水泵的壓頭也比較大。
In the process of the steam boiler heat transfer, once through the heating surface, the second kind of heat transfer deterioration phenomenon must appear. At the same time, the direct current boiler has no drum, and the salt brought by the water supply is removed by steam, and the rest of the water is deposited on the heating surface, so the requirement of water quality is relatively high.
在蒸汽鍋爐的傳熱過(guò)程中，是一次通過(guò)各受熱面，第二類(lèi)傳熱惡化現(xiàn)象一定要出現(xiàn)。同時(shí)，直流鍋爐沒(méi)有汽包，給水帶來(lái)的鹽分除一部分被蒸汽帶走外，其余全沉積在受熱面上，所以對(duì)水質(zhì)的要求也是比較高的。
The heat storage capacity of a steam boiler is not large, so when there is a disturbance, there will be a lack of self compensation capability and a large change in the parameter speed. When the DC steam boiler load change, we must also adjust the amount of water supply and the amount of coal to keep the material balance and energy balance, in order to stabilize the steam pressure and steam temperature.
蒸汽鍋爐的儲(chǔ)熱能力不大，因此當(dāng)其發(fā)生擾動(dòng)的時(shí)候，會(huì)存在自補(bǔ)償能力不足及參數(shù)速度變化大的現(xiàn)象。當(dāng)直流蒸汽鍋爐的負(fù)荷發(fā)生變化時(shí)，必須要同時(shí)調(diào)節(jié)給水量和燃煤量，以保持物質(zhì)平衡和能量平衡，才能穩(wěn)住汽壓和汽溫。
In order to reduce the heat loss and the work loss of the direct current steam boiler, a bypass system should be installed as soon as possible. Since the steam boiler has no steam drum, the heating process can be faster, so it will start faster.
啟動(dòng)過(guò)程中，為了能夠減少直流蒸汽鍋爐熱量損失和工質(zhì)損失，盡量要加裝一個(gè)旁路系統(tǒng)。由于直流蒸汽鍋爐沒(méi)有汽包，升溫過(guò)程可以快一些，所以它的啟動(dòng)速度會(huì)比較快。
