A method for controlling the speed of an air conditioner compressor

An air-conditioning compressor, speed control technology, applied in the direction of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control system, etc., can solve the problem of affecting the service life of the compressor, reducing the cooling effect, and increasing the compression The problems such as sudden load in the air conditioner and the air conditioner can be avoided, so as to avoid long-term high-speed operation, improve the efficiency of the air conditioner, and prolong the service life.

Active Publication Date: 2019-08-13
KEHUA DATA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the compressor works at a high speed for a long time, it is easy to cause the compressor to work in a high temperature range for a long time, which will increase the internal load of the compressor and the air conditioner, which will not only affect the service life of the compressor, but also affect the life of the air conditioner, and increase the power. If the temperature of the compressor is too high, one method may cause compressor failure and damage, on the other hand, it will reduce the cooling effect

Method used

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  • A method for controlling the speed of an air conditioner compressor
  • A method for controlling the speed of an air conditioner compressor
  • A method for controlling the speed of an air conditioner compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Set the speed value of the air conditioner compressor to five speed gears from low to high (N=5), and the corresponding speed adjustment coefficient range and speed command value are also five, as shown in Table 2 below:

[0041] Table 2

[0042]

[0043] The speed command value V of the air conditioner compressor corresponding to the i-1th speed gear i-1 Less than or equal to the speed command value V of the air conditioner compressor corresponding to the i-th speed gear i , where i is a natural number, 2≤i≤5, and N is a natural number greater than or equal to 2.

[0044] In addition, the indoor temperature T 室内 It is the indoor average temperature value after temperature collection by three temperature sensors installed at three locations in the room.

Embodiment 2

[0046] In this embodiment, a method for controlling the rotational speed of an air-conditioning compressor, the air-conditioning and refrigeration system of the air-conditioning and refrigeration system can be applied to the refrigeration of the inter-row air-conditioning, and the collection of indoor temperature is the temperature collection of the cooling area of ​​the inter-row air-conditioning.

[0047] Set the speed value of the air conditioner compressor to 7 speed gears from low to high (N=7), and the corresponding speed adjustment coefficient range and speed command value are also seven, as shown in Table 3 below:

[0048] table 3

[0049]

[0050]

[0051] The speed command value V of the air conditioner compressor corresponding to the i-1th speed gear i-1 Less than or equal to the speed command value V of the air conditioner compressor corresponding to the i-th speed gear i, where i is a natural number, 2≤i≤5, and N is a natural number greater than or equal to...

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Abstract

The invention relates to a rotation speed control method for an air conditioner compressor, which comprises the following steps: setting the rotation speed value of an air conditioner compressor into N rotation speed shifts from low to high, and setting a corresponding rotation speed adjusting coefficient interval and a rotation speed instruction value; acquiring indoor temperature and outdoor machine temperature in real time; according to a cooling temperature value set for an air conditioner, the indoor temperature, an outdoor machine standard temperature setup value and the outdoor machine temperature, calculating a rotation speed adjustment coefficient; according to the calculated rotation speed adjustment coefficient, confirming the rotation speed adjustment coefficient interval, confirming a corresponding rotation speed instruction value; adjusting a current rotation speed value of the air conditioner compressor to be equal to the calculated rotation speed instruction value. By adopting the rotation speed control method for the air conditioner compressor, the service life of the air conditioner compressor can be prolonged, and the cooling effect of the air conditioner compressor can be improved.

Description

technical field [0001] The invention relates to a method for controlling the rotational speed of an air conditioner compressor. Background technique [0002] The compressor is the heart of the refrigeration system. It inhales low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the click operation, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle. If the compressor works at a high speed for a long time, it is easy to cause the compressor to work in a high temperature range for a long time, which will increase the internal load of the compressor and the air conditioner, which will not only affect the service life of the compressor, but also affect the life of the air conditioner, and increase the power. If the compressor temperature is too high, one method may cause compressor failure and damage, and the other will reduce the cooling ef...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F24F11/64F24F11/86F24F110/10F24F110/12F24F140/20
CPCF24F11/30F24F11/59F24F11/62F24F11/64F24F11/70F24F2110/10F24F2110/12F24F2140/20
Inventor游玉香林清民
OwnerKEHUA DATA CO LTD