【摘要】 针对供热系统落后的补水定压方式和锅炉鼓、引风系统，阐明变频调速技术在这２方面的应用以及取得良好的效益和远大的发展前景。更多还原

【Abstract】 Comparing the constant pressure method through ways of making-up water and the system of air blasting and drawing out from the boiler,the application of variable frequency speed control is more effective and beneficial,and have good perspective in the future.更多还原