凈化2噸蒸汽鍋爐產(chǎn)生的蒸汽有哪些
Purify 2 tons steam boiler produce steam
當(dāng)2噸蒸汽鍋爐產(chǎn)生蒸汽后會由鍋爐的鍋筒排出，而鍋爐排出的蒸汽中總是含有一些雜質(zhì)的，有些雜質(zhì)以液態(tài)狀態(tài)存在，有些雜質(zhì)可溶解于蒸汽中，也可能有少量氣體雜質(zhì)混在蒸汽中，這些雜質(zhì)主要是鈉鹽、硅鹽、二氧化碳和氨等。
When the meeting after steam boiler to produce steam from the boiler drum, and the steam boiler exhaust always contains some impurities, some impurities exist in liquid form, some impurities can be dissolved in steam, there may be a small amount of gas impurities mixed in steam, these impurities are mainly sodium salt, silicon, carbon dioxide and ammonia, etc.
含有雜質(zhì)的蒸汽通過過熱器時，可能有部分雜質(zhì)沉積在管內(nèi)壁上，形成鹽垢，使壁溫度升高，加速鋼材的蠕變，嚴(yán)重的甚至產(chǎn)生裂紋而爆破。
Containing impurities by steam superheater, there may be some impurities deposition in the pipe wall and the formation of salt deposit, make the wall temperature, accelerate steel creep, serious and even crack and burst.
剩余的雜質(zhì)則隨蒸汽進(jìn)入鍋爐的汽輪機(jī)。蒸汽在汽輪機(jī)中膨脹作功，隨著蒸汽壓力的降低，雜質(zhì)被析出并沉積在汽輪機(jī)的通流部分，致使葉表面粗糙、線型改變和蒸汽通流截面減小，導(dǎo)致汽輪出力和效率降低。
The remaining impurities follow the steam into the turbine of the boiler. In steam turbine expansion work, with the loss of the steam pressure, the impurities were precipitation and deposition in the throughflow section of the steam turbine, the leaf surface is rough, linear change and steam flow cross-section decreases, and results in the decrease of turbine output and efficiency.
另外沉積在主汽門上的鹽分將使閥門開啟困難，關(guān)閉不嚴(yán)。對于制藥及食品等工業(yè)，生產(chǎn)用汽與產(chǎn)品是直接接觸的，如蒸汽攜帶的雜質(zhì)超過規(guī)定值，將影響產(chǎn)品質(zhì)量及工藝條件。
Also, the salt deposited on the main steam door will cause the valve to open and shut down. For pharmaceutical and food industries, the production of steam is direct contact with the product, the impurities such as steam carried over specified value, will affect the product quality and process conditions.
