Clearance control method of symmetrical balance-type free piston compressor
A technology of symmetrical balance and control method, used in pump control, liquid variable capacity machinery, mechanical equipment, etc., can solve the problems of poor economy, large clearance change, low control accuracy, etc., to ensure compression efficiency and operation. The effect of stability
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[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0012] Such as figure 1 As shown, the clearance control method of the symmetrical balanced free piston compressor of the present invention, 1) set the target clearance H and the initial reversing position S on the control device; 2) the control system according to the clearance correction amount ΔH n Determine the compression period T n Reversing position S of the same cylinder piston n ; 3) the control system is based on the position signal of the cylinder piston measured by the displacement sensor and the reversing position S n Compare, equal to S n 4) The control system measures the compression cycle T of the cylinder piston through the displacement sensor. n The actual end position and calculate the actual clearance H n ;The control system is in this compression cycle T n Before step 2), or the last compression cycle T n-1 After step 4), acco...
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