5.17 The sealing of prunace should be rigorous. Water seal of slag scraper machine can be launched after boiler proper being heat-preserved. All ari&flue gas damper can be closed. Examination hole, man hole, gas pass, air duct, water seal of slag scraper machine and so on, should be provided with sealing condition during chemical cleaning. So as to reduce loss of heat, and avoid the decrease of heating up speed, which will affect the quality of chemical cleaning. Thermal insulation should be carried out when pipe and steam pipe are cleaned temporarily.
5.18 Generally, the boiler is provided with condition of firing up. So as to ensure that it can be fired up and flushed in 20 days after the chemical cleaning.
6 Temporary system installation and temporary measures in chemical cleaning
6.1 The exit pipe above the steam drum should be always up and up to the air at last. The effective discharge area of exit pipe should be no less than φ100.
6.2 The cyclone separator in the steam drum should be dismanted or uploaded and be well treated before acid washing, then be loaded after chemical cleaning.
本人壹向鄙視機譯,不知道底樓的結論從哪來。有能耐妳也給個手譯的來。