Throttling and noise reduction structure of air suction and noise reduction cavity of compressor

Abstract

The utility model discloses a throttling noise reduction structure of a compressor air suction noise reduction cavity, which comprises a noise reduction cavity air suction port and at least one noise reduction cavity air outlet port, an air inlet valve is arranged at the position of the noise reduction cavity air suction port, and an air outlet valve is arranged at the position of each noise reduction cavity air outlet port. By means of the structure, when the silencing cavity operates, the air flowing speed is reduced through the throttling effect of the air inlet valve and the air outlet valve, and therefore airflow noise is reduced; meanwhile, after air suction is finished, the air inlet valve and the air outlet valve are closed, part of noise generated when the valve plate claps the valve plate can be limited in the silencing cavity, and propagation of the clapping noise is blocked.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of compressor suction silencer, specifically relates to a throttle noise reduction structure of compressor suction silencer. BACKGROUND

[0002] The existing piston compressor needs to pass through the suction silencer in the process of being sucked into the cylinder hole during operation, such as Figure 3 As shown in an existing suction silencer, there is a through hole type silencer, that is, the suction port and the exhaust port of the silencer are not provided with valves, and the refrigerant directly passes through the suction path (the suction path only differs in shape, length, and cross-sectional area) when the silencer operates, and the suction / exhaust port does not have a throttling effect, so when the flow rate of the gas flow is too fast, the gas flow noise is easily caused; there is also a silencer provided with a valve plate at the suction port of the silencer, and the noise of the suction valve plate striking the valve plate is transmitted through the suction path during the suction process, so that the noise experience is not good. SUMMARY

[0003] In view of the above technical problems in the related art, the utility model provides a throttle noise reduction structure of compressor suction silencer, which can solve the above problems.

[0004] To achieve the above technical purposes, the technical scheme of the utility model is as follows:

[0005] A throttle noise reduction structure of compressor suction silencer, comprising a silencer suction port and at least one silencer exhaust port, wherein the silencer suction port is provided with an inlet valve, and each silencer exhaust port is provided with an exhaust valve.

[0006] Further, the inlet valve and the exhaust valve are both valve plates.

[0007] Further, the valve plate is attached to the inner wall of the port of the silencer by riveting, bonding, or welding.

[0008] The utility model has the advantages that: through the structure of the application, when the silencer operates, the throttling effect of the inlet valve and the exhaust valve reduces the speed of the gas flow, thereby reducing the gas flow noise; after the suction is completed, the inlet valve and the exhaust valve are closed, a part of the noise of the valve plate striking the valve plate is limited in the silencer, and the propagation of the striking noise is blocked. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only constitute some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0010] The present application will be further described in detail below according to the drawings.

[0011] Figure 1 is a structural schematic view of the connection between the sound-absorbing cavity air outlet port and the air outlet valve according to the embodiment of the present application;

[0012] Figure 2 is a structural schematic view of the connection between the sound-absorbing cavity air inlet port and the air inlet valve according to the embodiment of the present application;

[0013] Figure 3 is a structural schematic view of an existing air-inlet sound-absorbing cavity according to the background art.

[0014] In the drawings:

[0015] 100, air inlet valve; 200, air outlet valve. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0017] As shown in Figures 1-2 According to the present application, a throttling noise reduction structure of a compressor air-inlet sound-absorbing cavity is disclosed, which comprises one sound-absorbing cavity air-inlet port and one sound-absorbing cavity air-outlet port. An air inlet valve 100 is installed at the sound-absorbing cavity air-inlet port, and an air outlet valve 200 is installed at each sound-absorbing cavity air-outlet port.

[0018] In one embodiment, the air inlet valve 100 and the air outlet valve 200 can both adopt a valve plate structure. The valve plate can be attached to the inner wall of the sound-absorbing cavity air port by riveting, bonding, welding, etc., while ensuring that the valve plate tongue part seals the air port of the sound-absorbing cavity. The thickness and shape of the valve plate can be determined according to the shape of the sound-absorbing cavity air port and the displacement requirement. Similarly, the internal airflow channel of the sound-absorbing cavity can also be increased according to the requirement, and multiple valve plate structures can be added according to the requirement. The material of the valve plate structure can be metal, rubber, engineering plastic, or other materials.

[0019] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A throttling noise reduction structure of a compressor suction muffling chamber, comprising a muffling chamber suction port and at least one muffling chamber discharge port, wherein a suction valve is installed at the muffling chamber suction port, characterized in that, An air outlet valve is installed at the air outlet end of each sound attenuation chamber.

2. The throttling noise reduction structure of a compressor suction muffling chamber according to claim 1, characterized in that, The air inlet valve and the air outlet valve are both valve plates.

3. The throttling noise reduction structure of a compressor suction muffling chamber according to claim 2, characterized in that, The valve plates are attached to the inner wall of the chamber port by riveting, bonding or welding.

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