Control method of rotary compressor

A technology of rotary compressor, control method, applied in the direction of rotary piston machine, rotary piston pump, pump combination for elastic fluid rotary piston type/oscillating piston type, etc., which can solve the efficiency problem, which is difficult to carry out smoothly, Problems such as wasting time and energy to achieve the effect of preventing inefficiency, preventing vibration, and improving efficiency

Inactive Publication Date: 2007-08-08
GUANGDONG MEIZHI COMPRESSOR
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the compressor waits too long to restart, and the system that loses the high and low pressure difference has to be raised to the required pressure and restore the original function, a lot of time and energy will be wasted
That is to say, the control method of controlling the refrigeration capacity by shutting down is theoretically difficult to carry out smoothly, and even if it can be carried out, there are huge problems in its efficiency

Method used

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  • Control method of rotary compressor
  • Control method of rotary compressor

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] In the figure, 1 is compressor, 2 is liquid receiver, 3 is exhaust pipe, 4 is condenser, 5 is automatic expansion valve, 6 is evaporator, 7 is one-way valve, 8 is valve device, 10 is compression Assembly, 11 is the motor assembly, 12 is the first cylinder, 13 is the second cylinder, 14.1 is the first piston, 14.2 is the second piston, 15.1 is the first slide groove, 15.2 is the second slide groove, 16.1 is the first One slide, 16.2 is the second slide, 17 is the main shaft of the eccentric crankshaft, 18.1 is the upper bearing, 18.2 is the lower bearing, 19 is the sub-shaft of the eccentric crankshaft, 20.1 is the first slide chamber, 20.2 is the second slide chamber, 21 is a first pressure switching tube, 22 is a second pressure switching tube, 23 is a low pressure tube, 24 is a high pressure tube, and 33 is an intermediate partition.

[0023] ...

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Abstract

The invention relates to a method for controlling the rotary compressor. The compressor has two or more cylinders with different volumes; each cylinder has a piston, an eccentric crank driving the piston and a bearing for supporting the eccentric rank; the sliding groove of at least one cylinder is arranged with sliding spring; the cylinder switches volumes via compressing or non-compressing method, while the compressing mode is mode 1 and the non-compressing mode is mode 2; the compressor has an external valve which can utilize the high and low pressures at the start of compressor for switch the pressure of sliding room between low and high pressures; the compressor uses one of seven operation modes in the whole process or their combination. The invention can control the refrigerating ability of compressor at highest rotation speed with fixed motor efficiency, to improve the efficiency.

Description

technical field [0001] The invention relates to a method for controlling a rotary compressor, in particular to a method for controlling the refrigeration capacity of a two-cylinder rotary compressor. Background technique [0002] Now, the method of using frequency conversion technology to control the rotary compressor with frequency conversion function to control the change of its refrigeration capacity is very mature and has been commercialized, mainly by controlling the rotation speed of the rotary compressor at about 15Hz (equivalent to the exhaust 25% of the volume) to about 120Hz (equivalent to 200% of the displacement) to achieve continuous changes. (Note: Equivalent to 25% or 200% of the displacement, it can be considered that the frequency conversion technology is continuously variable within the range of 25% to 200% of the compressor displacement.) However, recently, from improving comfort and energy saving From the point of view, the need to further reduce the rot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C28/00
CPCF04C18/3564F04C23/001F04C23/008F01C21/0845F01C21/0863
Inventor 邵海波
Owner GUANGDONG MEIZHI COMPRESSOR
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