How does the compressor of a large constant temperature blast drying oven work?
The intersection A of the compressor characteristic curve and the condenser characteristic curve is the stable operating point of the compressor. When the amount of water entering the condenser cooling water changes, the characteristic curve of the condenser will change, and the electric power at the intersection point A will change accordingly, thereby changing the cooling capacity of the compressor.
If the water intake of the condenser decreases, the slope of the condenser characteristic curve increases, the curve I moves to the position of I', the working point of the compressor moves to point A, and the cooling capacity decreases. on the contrary. When the water inflow of the condenser cooling water increases, the slope of the condenser characteristic curve decreases, and the curve I moves to the position of II_6 scoop, and the working point of the compressor moves to the point A′, and the cooling capacity increases.
When the amount of water flowing into the condenser cooling water is reduced to a certain extent, the flow rate of the compressor becomes small, a serious gas outflow occurs in the compressor flow path, and the outlet pressure of the compressor suddenly drops. Since the compressor and the condenser work together, the pressure of the gas in the condenser does not decrease at the same time, causing the pressure of the gas in the condenser to be greater than the pressure at the outlet of the compressor, (the manufacturer of the constant temperature blast drying oven) causes the condenser The gas flows back to the compressor until the pressure in the condenser drops to equal the compressor outlet pressure.
At this time, the compressor starts to supply air to the condenser, and the compressor resumes normal operation. But when the pressure in the condenser also returns to the original pressure. The flow rate of the compressor is reduced again, the compressor outlet pressure is lowered, and the gas is reversed. (The constant temperature blast drying oven manufacturer) This cycle starts and produces a periodic airflow oscillation phenomenon called "surge" phenomenon.
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