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Operation control device and method of reciprocating motion type compressor

A technology of reciprocating motion and operation control, used in pump control, machine/engine, liquid variable capacity machinery, etc., can solve problems such as reducing reliability, piston wear, collision, etc., and achieve the effect of preventing noise and reducing runaway operation.

Inactive Publication Date: 2006-08-02
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] In this case, if the load is changed due to changes in the surrounding operating conditions, the stroke of the control piston is always at the position of the top dead center = 0, so when the load is determined, the wear and collision of the piston will occur, which will reduce the reliability. The problem

Method used

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  • Operation control device and method of reciprocating motion type compressor
  • Operation control device and method of reciprocating motion type compressor
  • Operation control device and method of reciprocating motion type compressor

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Embodiment Construction

[0038] The functions and effects of the reciprocating compressor will be described in detail below with reference to the drawing of the operation control device and method of the reciprocating compressor.

[0039] image 3 It is a functional block diagram of the operation control device of the reciprocating compressor. It consists of the following components: Power supply unit for driving the compressor and providing AC power 1: Load detection circuit box for detecting the electrical signal in the circuit as a load image 3 : The above load detection component circuit box image 3 Comparison circuit box for comparing the detected load with the rated load limit value and calculating the piston stroke Figure 4;According to the comparison circuit box Figure 4 The calculated piston stroke sets the stroke command value, and outputs the control circuit box of the transfer switch control signal issued by the stroke command value Figure 5 ; According to the control circuit box ...

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Abstract

An operation control method for reciprocating compressor includes sensing load, comparison, setting up and controlled driving. Its apparatus is composed of load sensor, bidirectional SCS, two comparators, load limit storage, stroke instruction setting unit, travel / stroke storage, stroke sensor, and stroke controller.

Description

technical field [0001] The invention belongs to the technical field of compressor control, in particular to an operation control device and method for a reciprocating compressor that changes the stroke of the compressor with the change of the load. Background technique [0002] Generally speaking, the reciprocating compressor is controlled by changing the power supply connected to the stator coil of its motor into an intermittent power supply with a switch. [0003] figure 1 It is the circuit diagram of the operation control device of the existing reciprocating compressor. As shown in the figure: its operation control device is composed of a reciprocating compression part L.COMP, a voltage detection part 30, a current detection part 20, a microcomputer 40 and a power supply circuit 10. The reciprocating compression part changes with the stroke command value, and it sets the stroke of the piston moving up and down according to the voltage applied to the internal motor M to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06F04B35/04
Inventor 郑圆铉裴圭钟
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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