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Running controlling method of reciprocating dynamic compressor

A technology of operation control and compressor, which is applied in the direction of pump control, machine/engine, liquid displacement machinery, etc. It can solve the problem of damaged discharge valve 40' and achieve the effect of ensuring reliability

Inactive Publication Date: 2007-08-29
TAIZHOU LG ELECTRONICS REFRIGERATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the defrosting operation, due to the overload state formed in the above-mentioned defrosting operation cabinet, because the temperature piston 20' in the above-mentioned cabinet passes through the image point, breaks away from the interior of the cylinder 10' and enters the interior of the discharge cover 30', so the above-mentioned piston 20' The problem of hitting the above-mentioned discharge valve 40' and damaging the above-mentioned discharge valve 40'

Method used

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  • Running controlling method of reciprocating dynamic compressor
  • Running controlling method of reciprocating dynamic compressor
  • Running controlling method of reciprocating dynamic compressor

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Embodiment Construction

[0046] Hereinafter, it will be described in detail with reference to the drawings of working examples of the present invention.

[0047] Fig. 4 is a flowchart showing the operation control method of the reciprocating compressor of the present invention. As shown in the figure, according to the stroke instruction, the piston is moved up and down to change the stroke by the voltage introduced into the internal motor, and the cooling power is adjusted. The temperature sensed by the defrost sensor is judged to be Is it the first stage (S41, S42) above or below the defrosting set temperature; or (S41, S43);

[0048] The temperature sensed by the defrost sensor is judged to be higher than the defrost setting upper limit temperature or lower than the defrost setting lower limit temperature. If it is below the defrost setting lower limit temperature, the second stage of the motor is controlled with normal impulse voltage ( S43, S44);

[0049] As a result of the above judgment, if the defr...

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Abstract

A method for controlling the running of reciprocating compressor by regulating the stroke and controlling the over-load state (defrosting or initial power on) includes such steps as inputting voltage to motor according to stroke indication for driving piston to change stroke, sensing the temp by defrosting sensor, judging if the sensed temp is higher than the upper-limit defrosting temp or lower than the lower-limit defrosting temp, and using normal impulsion voltage to control motor if it is the lower-limit defrosting temp or using low impulse voltage to control the compressor if it is higher than upper-limit defrosting temp.

Description

Technical field [0001] The present invention relates to a method for controlling the operation of a reciprocating compressor, in particular to low-stroke operation in overload conditions such as after defrosting operation or initial power supply, etc., which can adjust the stroke of the stroke while controlling the reciprocating motion in the overload state. Operation control method of type compressor. Background technique [0002] Generally, a reciprocating compressor uses a switch terminal to control the power supply to the coils wound on the stator, which can generate a rotating torque to change the excitation state between the rotor and the stator, so the electromagnetic force can generate positive rotation Torque. [0003] If, without changing the specific excitation state, the rotor can stay in a certain position, the maximum inductance is the starting point to control the signal imported above the input pulse of the switch terminal, and the electronic components that can c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06
Inventor 金在浩
Owner TAIZHOU LG ELECTRONICS REFRIGERATOR CO LTD
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