In the power plant and steel plant's flue gas desulfurization operating costs, power consumption accounts for a large part of the cost. Therefore, effectively reducing power consumption has become a major concern for all flue gas desulphurization operators. In this regard, Yang Weishen, manager of Purchasing Department of China Energy-saving Liuhe Tianrong Environmental Protection Technology Co., Ltd., feels.
As a professional desulphurization engineering company with the largest total scale of flue gas desulphurization projects in domestic steel companies, China Energy-saving Liuhe Tianrong Environmental Protection Technology Co., Ltd. has chosen to increase the desulfurization efficiency of sintering machines. In order to significantly increase energy efficiency, Yang Wei proposed to promote the use of variable frequency speed control technology in large-scale flue gas desulfurization projects that are already in operation and under construction, and gradually eliminate mechanical adjustment methods such as baffles and valves.
“The direct and indirect economic benefits of frequency conversion speed regulation technology in terms of fan and pump power saving are very obvious, and one-time investment of equipment can usually be recovered in 1 to 2 years.†Yang Wei calculated an account to Tangshan Guofeng Steel Co., Ltd. 132m2 sintering machine flue gas desulfurization project (Phase I) as an example, according to the conditions of continuous operation for 15 consecutive hours for 300 days of the year, using frequency conversion technology, a 950kW booster fan, Two circulating pumps (power of 220kW and 250kW respectively) can save 1.25 million yuan in electricity savings and 600,000 yuan in savings each year, and actually reduce carbon dioxide emissions by 774 and 385 tons.
In this calculation method, the equipment is set to operate at 90% load for 7 hours per day, the frequency is calculated at 46Hz, the motor power consumption is calculated at 98% when the damper is adjusted, and the working time is set at 8 at 50% load. In hours, the frequency is calculated as 20Hz, and the motor power consumption is calculated as 70% when the damper is adjusted.
Current practice has proven that inverters have been used to drive and control wind turbines and pumps. Significant energy savings have been achieved, and equipment maintenance and repair costs have also been reduced, and production cycles have been reduced. Yang Wei told reporters that if the company currently operates six power plants and steel plant desulphurization projects are using frequency control technology, will save about 11,192,600 yuan in electricity costs, reduce emissions of 6,914.64 tons of carbon dioxide.
As a professional desulphurization engineering company with the largest total scale of flue gas desulphurization projects in domestic steel companies, China Energy-saving Liuhe Tianrong Environmental Protection Technology Co., Ltd. has chosen to increase the desulfurization efficiency of sintering machines. In order to significantly increase energy efficiency, Yang Wei proposed to promote the use of variable frequency speed control technology in large-scale flue gas desulfurization projects that are already in operation and under construction, and gradually eliminate mechanical adjustment methods such as baffles and valves.
“The direct and indirect economic benefits of frequency conversion speed regulation technology in terms of fan and pump power saving are very obvious, and one-time investment of equipment can usually be recovered in 1 to 2 years.†Yang Wei calculated an account to Tangshan Guofeng Steel Co., Ltd. 132m2 sintering machine flue gas desulfurization project (Phase I) as an example, according to the conditions of continuous operation for 15 consecutive hours for 300 days of the year, using frequency conversion technology, a 950kW booster fan, Two circulating pumps (power of 220kW and 250kW respectively) can save 1.25 million yuan in electricity savings and 600,000 yuan in savings each year, and actually reduce carbon dioxide emissions by 774 and 385 tons.
In this calculation method, the equipment is set to operate at 90% load for 7 hours per day, the frequency is calculated at 46Hz, the motor power consumption is calculated at 98% when the damper is adjusted, and the working time is set at 8 at 50% load. In hours, the frequency is calculated as 20Hz, and the motor power consumption is calculated as 70% when the damper is adjusted.
Current practice has proven that inverters have been used to drive and control wind turbines and pumps. Significant energy savings have been achieved, and equipment maintenance and repair costs have also been reduced, and production cycles have been reduced. Yang Wei told reporters that if the company currently operates six power plants and steel plant desulphurization projects are using frequency control technology, will save about 11,192,600 yuan in electricity costs, reduce emissions of 6,914.64 tons of carbon dioxide.
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