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Noise-reduction, oil-removal and impurity-reduction muffler, compressor pump body and compressor equipped with compressor pump body

A muffler and noise reduction technology, applied in the field of compressors, can solve the problems that the muffler can't effectively separate oil and impurities, start up noise, and functional defects, etc., to improve long-term working reliability, reduce start-up noise, and structural design reasonable effect

Inactive Publication Date: 2017-06-13
WUHU ABAUR MECHANICAL & ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing compressor mufflers, especially the mufflers of refrigerators and freezers, can selectively muffle the noise of a certain frequency band, and some mufflers have a rather complicated structure, blindly emphasizing the noise reduction effect, ignoring the impact of the noise at the moment of startup on the overall performance of the compressor. Impact
[0003] Originally, a compressor with low noise during operation and the user could accept it, was complained by the user because of the loud start-up noise, and it was directly taken off the assembly line as a faulty machine; at the same time, because the refrigerant and oil are completely soluble, when the refrigerant is discharged from the muffler suction port When inhaled, the refrigerating machine oil is also sucked into the compressor cylinder through the inlet of the suction muffler, and finally discharged into the refrigeration system by the compressor. The refrigerating machine oil sucked into the compressor itself not only affects the cooling capacity of the compressor, but also may cause system damage due to the further reduction of the cooling capacity due to oil discharge. Oil plugging; What's more, because during the manufacturing and assembly process of the compressor, although deep investment has been made in quality management and impurity control, it is difficult to prevent compressor impurities from entering the compressor and entering the compressor pump body through the suction port , it is likely to cause the compressor cylinder to fail
[0004] Although the more expensive muffler is used to attenuate the noise to a certain extent, the muffler itself cannot effectively separate oil and impurities, nor can it reduce the instant start-up noise
There is no benefit to the overall performance and reliability of the product, so there are functional defects

Method used

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  • Noise-reduction, oil-removal and impurity-reduction muffler, compressor pump body and compressor equipped with compressor pump body
  • Noise-reduction, oil-removal and impurity-reduction muffler, compressor pump body and compressor equipped with compressor pump body
  • Noise-reduction, oil-removal and impurity-reduction muffler, compressor pump body and compressor equipped with compressor pump body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1, such as Figures 1 to 3 As shown, this kind of suction muffler with steel wire perforated plate includes the suction port 1 of the pump body suction sounder of the refrigeration compressor, the perforated plate 2 at the suction port at the suction port, the lower anechoic chamber 3 and the lower anechoic chamber Connector 4 on the upper chamber, the perforated plate 5 of the communicator can be welded on the upper part of the connector 4 as required, the upper anechoic chamber 6 connects the communicator 4 and the lower anechoic chamber 3 closely together by ultrasonic or hot-melt welding, and the upper anechoic chamber The chamber 6 cooperates with the positioning groove of the cylinder head 14 through the supporting positioning ear 8, and the upper anechoic chamber is provided with a refrigerant outlet 7, and at the same time, the upper positioning pin 9 on the upper anechoic chamber 6 cooperates with the positioning hole in the valve plate 12 to ensure that...

Embodiment 2

[0043] Example 2, such as Figure 4 to Figure 7 As shown, the pump body with a resonator muffler includes a suction port perforated plate 16 with a resonant cavity muffler, a lower anechoic chamber 17 with a resonant cavity muffler, and an upper anechoic chamber on a cylinder head 18 equipped with a resonant cavity muffler. The upper anechoic chamber is composed of an upper anechoic chamber refrigerant inlet 21 and an upper anechoic chamber refrigerant outlet channel 20 .

[0044] Inhaled low-temperature and low-pressure refrigerant enters the lower anechoic chamber 17 with a resonant chamber muffler through the suction port perforated plate 16 with a resonant chamber muffler, and reaches the lower anechoic chamber 17 with a resonant chamber muffler. After that, part of the refrigerant passes through the upper anechoic chamber for cooling. The agent inlet 21 enters the resonance chamber on the left side of the lower anechoic chamber 17, the right side is the main anechoic cham...

Embodiment 3

[0045] Example 3, such as Figures 1 to 3 with Figure 8 as well as Figure 9 As shown, in order to achieve a better effect of noise reduction, impurity removal and oil reduction, on the basis of Embodiment 1, the refrigerant reaches the lower anechoic chamber 3 and passes through the communicator perforated plate 5 above the communicator 4, and the communicator perforated plate 5 and the upper The anechoic chamber also plays the role of orifice plate noise reduction. The amount of noise reduction can be adjusted to the aperture on the perforated plate 5 of the communicator. It is preferable that the aperture can be adjusted to 0.4-1.0 mm, and the perforation rate of the perforated plate of the communicator is 1% to 18%. ;At the same time, because the flow rate of the refrigerant is relatively fast, and the movement of the compressor is reciprocating, so there is a pulsation phenomenon when the gas enters, because the high-speed pulsating gas will be accompanied by a large no...

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Abstract

The invention discloses a noise-reduction, oil-removal and impurity-reduction muffler. The muffler comprises a muffling chamber, wherein an air suction port is formed in the muffling chamber, and an air suction port perforated plate is arranged at the air suction port. A compressor pump body comprises a cylinder seat, a cylinder head, a valve plate arranged between the cylinder seat and the cylinder head as well as the noise-reduction, oil-removal and impurity-reduction muffler, and the muffler is arranged on the cylinder head. A compressor comprises the compressor pump body. In the whole operation process of the compressor, perforated plates have the muffling and noise reducing functions all along, and the muffling effect is improved; air suction density of a working medium is high at the start moment and is reduced through blocking of the perforated plates, and start noise is reduced; meanwhile, part of engine oil can be effectively prevented from entering the compressor through the air suction port, various impurities can be prevented from entering the compressor through the air suction port, hidden danger of the compressor for getting stuck is reduced, and long-time working reliability of the compressor is improved.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a noise-reducing, oil-removing, and impurity-reducing muffler, a compressor pump body and a compressor. Background technique [0002] Existing compressor mufflers, especially the mufflers of refrigerators and freezers, can selectively muffle the noise of a certain frequency band, and some mufflers have a rather complicated structure, blindly emphasizing the noise reduction effect, ignoring the impact of the noise at the moment of startup on the overall performance of the compressor. Impact. [0003] Originally, a compressor with low noise during operation and the user could accept it, was complained by the user because of the loud start-up noise, and it was directly taken off the assembly line as a faulty machine; at the same time, because the refrigerant and oil are completely soluble, when the refrigerant is discharged from the muffler suction port When inhaled, the refrig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/00F04B39/04
CPCF04B39/0083F04B39/0088F04B39/04
Inventor 杨百昌林银坤何景云江志安吴大奎王世林何进杨静静李亮亮刘婷
Owner WUHU ABAUR MECHANICAL & ELECTRICAL
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