110kwXGJ560 wood pellet machine

Air-cooled Centrifugal Heat Pump Summary of Factors Affecting the Efficiency of Air-cooled Centrifugal Heat Pump Several factors The efficiency of an air-cooled Centrifugal Heat Pump is the product of mechanical, capacity and oil efficiency of the three. Pump efficiency is the product of pump efficiency and motor efficiency. Air-cooled centrifugal oil pump group caused by the low efficiency of the following factors. 1. Pump efficiency is the most fundamental impact. Po Taibang pump under the same working conditions, the efficiency may differ by more than 15%. 2. Air-cooled centrifugal oil pump operating conditions lower than the rated pump conditions, low pump efficiency, high energy consumption. 3. Motor efficiency in the use of the basic remain unchanged. So it is important to choose a high efficiency motor. 4. The main impact of mechanical efficiency and design and manufacturing quality. After the pump is selected, the latter part of the management has little effect. 5. Oil loss includes oil friction and local resistance loss. Pump running a certain period of time, inevitably cause impeller and guide vane and other parts of the surface wear and tear, increased oil loss, reduced oil efficiency. Pump volume loss, also known as leakage losses, including the impeller seal ring, interstage, axial force balance of three kinds of leakage losses. The level of volumetric efficiency is not only related to the design and manufacture, but also related to the latter part of management. Pump continuous operation for a certain period of time, due to the friction between the various components, the gap increases, reducing the volumetric efficiency. 7. As the filter cylinder is clogged, pipeline air intake and other causes of air-cooled centrifugal oil pump vacuum and idling. 8. Before starting the pump, employees do not pay attention to the preparatory work before starting the air-cooled centrifugal heat pump. The implementation of basic operating procedures such as warm pump, disk pump and perfusion pump is not thorough enough, often causing cavitation in the pump, causing pump noise, Vibration, low pump efficiency. Second, reduce energy consumption and improve pump efficiency measures to be taken 1. Replacement of 14 inefficient air-cooled centrifugal oil pump. Replacement, the selection of parameters and the actual operating conditions close to the air-cooled centrifugal oil pump to ensure that the replacement of the pump is always running in an efficient state. We made air-cooled centrifugal pump replacement efficiency comparison before and after the experiment, the experiment shows that the replacement of inefficient, high consumption, can improve pump efficiency of about 10%. 2. Frequency energy-saving technologies. On the design parameters greater than the actual operating conditions of air-cooled centrifugal oil pump, installation of frequency control device, always running in the high-efficiency zone. 3. Promote new energy-saving products such as high-efficiency and energy-saving permanent-magnet speed regulating motors and dual-power motors on the main air-cooled centrifugal heat pump. 4. Air-cooled centrifugal oil pump choice. Selection of new pump, the manufacturer should choose the pump manufacturers to ensure that the air-cooled centrifugal heat pump high efficiency. 5. Air-cooled centrifugal oil pump maintenance. (1) Always check and adjust the seal at the shaft end to reduce the volume loss; (2) When the air-cooled centrifugal heat pump accumulatively runs for 10,000 h, overhaul should be carried out to restore the pump efficiency; (3) Hot oil pump to promote the use of bellows sealing technology to completely eliminate leakage, increase volumetric efficiency. 6. Regularly clean the filter cylinder, check the pipeline connection, to ensure that air-cooled centrifugal hot oil pump inlet pipe flow. 7. In strict accordance with the operating rules of the air-cooled centrifugal oil pump, pump the pump to open the previous one, open the inlet valve, close the outlet valve, exhaust vent, check the pump inlet pressure meets the requirements. Prevent cavitation of the pump from occurring due to low fluid pressure and insufficient flow rate. 8. Regular air-cooled centrifugal oil pump for pump test, pump low pump group, to find out the reasons in time to take appropriate measures to be resolved. When an air-cooled centrifugal hot oil pump is used to pump a mud stream containing large, medium and small sizes of liquid in a liquid, the liquid is sprayed tangentially into the cylindrical chamber to form a vortex flow, and a part of the liquid is tangentially Exclusion from the chamber; axially injecting the slurry into the chamber, the vortex separating the oversized material from the rest of the slurry and liquid; axially removing the remaining slurry and liquid from the chamber and injecting the same into an air cooled Centrifugal hot oil pump inlet; the use of air from the air-cooled centrifugal pump out of the material as the formation of the vortex spray liquid, thereby reducing impeller wear and improve efficiency.When the air-cooled centrifugal oil pump used to pump liquid A method of reducing wear of an impeller and increasing efficiency of a slurry flow of large to small sized material characterized in that it comprises: a) directing the liquid into the vortex chamber tangentially to form a vortex and tangentially removing a portion of the Liquid; b axially injecting the slurry into the chamber, the vortex separating the large size of the material from the remaining slurry and liquid; c removing the remaining slurry and liquid axially from the chamber, And spray it into an air-cooled centrifuge The inlet of the oil pump; d using the material coming out of the air-cooled centrifugal oil pump as the ejection liquid forming the vortex flow; therefore, the large-size material moves toward the outer circle of the vortex and is discharged, and as a result, Of the material and liquid is injected into the air-cooled centrifugal oil pump, thus reducing the wear of the impeller and allowing the pump to run at high speed, thus increasing efficiency.