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Displacement adjustable compressor and its control method

A compressor and gas delivery technology, which is applied in the field of compressors and can solve the problems of non-adjustable and non-adjustable length of suction pipe

Inactive Publication Date: 2011-04-27
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A common compressor with a liquid receiver and a fixed-length suction line to suck air from the liquid receiver has become a known technology. Common common compressors such as the attached figure 1 As shown, it is composed of a compressor 1 and an external accumulator 3. The compression assembly 4 in the compressor 1 sucks air from the accumulator through the suction line 2. The length of the suction line 2 is fixed and cannot Adjustable; for ordinary double-cylinder double-suction compressors, it has two suction pipes, but the length of the suction pipes is also fixed and non-adjustable

Method used

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  • Displacement adjustable compressor and its control method
  • Displacement adjustable compressor and its control method
  • Displacement adjustable compressor and its control method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0026] See figure 2 , The compressor with adjustable gas delivery includes compressor 1 and accumulator 3. Compressor 1 is provided with compression assembly 4 and a motor for driving the compression assembly, and a suction unit is arranged between compression assembly 4 and accumulator 3. Air pipe, suction pipe includes main suction pipe 2.1, long suction pipe 2.2, short suction pipe 2.3 and two-position three-way control valve 5, one end of main suction pipe 2.1 and the suction part of compression assembly 4 The other end is connected to the common end of the two-position three-way control valve 5. One end of the long suction pipe 2.2 and the short suction pipe 2.3 are respectively opened in the reservoir 3, and the other end is respectively connected to the two-position three-way On the other two ends of the control valve 5, the length of the long suction pipe 2.2 is longer than the length of the short suction pipe 2.3. The long suction pipe 2.2 and the short suction pipe 2...

no. 2 example

[0032] See image 3 The suction pipeline includes a main suction pipe 2.1, a two-position three-way control valve 5, and an inner tank 3.1 arranged in the reservoir 3. One end of the main suction pipe 2.1 is connected to the compression assembly 4, and the other end is connected to the second The common end of the three-way control valve 5 is connected, the inner tank 3.1 is annular, and the outer side of the inner tank 3.1 is provided with a spiral ring groove. The spiral ring groove and the inner wall of the reservoir housing 3.2 are closely matched to form a spiral flow channel. 2.5, the inner tank 3.1 is provided with a straight tube-shaped flow channel 2.4, one end of the spiral-shaped flow channel 2.5 and the straight tube-shaped flow channel 2.4 are respectively opened in the reservoir, and the other end is respectively connected to the two-position three-way through the outlet pipe At the other two ends of the control valve 5, the length of the spiral flow passage 2.5 is...

no. 3 example

[0036] See Figure 4-Figure 5 , The suction pipeline includes a fixed suction pipe 2.6, a movable suction pipe 2.7 and a driving mechanism 6 that drives the movable suction pipe 2.7. One end of the fixed suction pipe 2.6 is connected to the compression assembly 4, and the other end extends into The inside of the accumulator 3 communicates with one end of a movable suction pipe 2.7 arranged in the accumulator 3, and the other end of the movable suction pipe 2.7 is opened in the accumulator 3. The movable suction tube 2.7 can be continuously moved within a certain range and always maintains communication with the fixed suction tube 2.6.

[0037] The position of the movable suction pipe 2.7 is adjusted by the driving mechanism 6, for example from Figure 4 Adjusted to Figure 5 Position, the total length of the suction pipe is lengthened; otherwise, from Figure 5 Adjusted to Figure 4 Position, the total length of the suction pipe is shortened, and then the total length of the suct...

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Abstract

The invention relates to a compressor with adjustable gas carrying capacity and a method for controlling the same. The compressor with adjustable gas carrying capacity comprises a compressor and a liquid storage device, wherein a compressing component and a motor for driving the compressing component are arranged in the compressor, and a gas suction pipeline is arranged between the compressing component and the liquid storage device. The compressor with adjustable gas carrying capacity is characterized in that the gas suction pipeline is adjustable and the length thereof can be adjusted hierarchically or continuously. The gas suction pipeline comprises a main gas suction pipe, a long gas suction pipe, a short gas suction pipe and two-position three-way control valves, wherein one end of the main gas suction pipe is communicated with the compressing component, while the other end is communicated with the common end of the two three-way control valves; one end of the long gas suction pipe and the short gas suction pipe is opened in the liquid storage device respectively, while the other end is communicated with the other two ends of the two three-way control valves respectively; and the length of the long gas suction pipe is longer than that of the short gas suction pipe. The long gas suction pipe and the short gas suction pipe are a spiral pipe and a straight pipe respectively. The compressor has the characteristics of adjustable gas carrying capacity, low manufacturing cost, simple processing and assembling process, and less production investment by using the prior equipment.

Description

Technical field [0001] The present invention relates to a compressor, in particular to a compressor capable of adjusting air delivery and a control method thereof. Background technique [0002] In order to control the capacity of the compressor, there are currently commercial frequency conversion technology and capacity control technology that changes the single working volume of the compressor. [0003] The compressor uses the periodic change of volume to inhale, compress and discharge, and then complete the compression of the gas to increase the pressure to the required level. The periodic suction of the compressor causes the periodic pressure fluctuations in the suction line of the compressor to be called pressure pulsation. [0004] The suction pipe is connected between the compression component of the compressor and the accumulator. The accumulator generally has a larger volume relative to the suction pipe, which can stabilize the pressure. The amplitude and phase of the press...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/00F04C29/12
Inventor 杨国用李华明
Owner GUANGDONG MEIZHI COMPRESSOR