CN215908060U

CN215908060U - Air exhaust pipe for screw compressor

Info

Publication number: CN215908060U
Application number: CN202122580873.2U
Authority: CN
Inventors: 何建人
Original assignee: WUXI WOYO SUPERDO COMPRESSOR CO Ltd
Current assignee: WUXI WOYO SUPERDO COMPRESSOR CO Ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-02-25
Anticipated expiration: 2031-10-26

Abstract

The utility model relates to the technical field of heat exchangers, in particular to an air exhaust pipe for a screw compressor.

Description

Air exhaust pipe for screw compressor

Technical Field

Background

Screw compressors are used mainly in the field of aerodynamic forces for driving various pneumatic tools, and are also increasingly used in applications requiring very high air quality, due to the development of oil-gas separation and gas purification technologies, such as: in the industries of food, medicine, cotton spinning and the like, in the practical use of the screw compressor, particularly in the ventilation process, gas periodically passes through the air suction and exhaust ports at a high speed, and because the air is compressed and then is changed into high-temperature and high-pressure air, the air is exhausted by the compressor, so that the compressor has great noise, and if the screw compressor works in a strong-noise environment for a long time, the hearing of workers is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

the utility model provides an air exhaust pipe for a screw compressor, which comprises an exhaust pipeline arranged at the outlet of the screw compressor and a porous screen plate arranged in the exhaust pipeline; the exhaust pipeline is provided with a silencing part; the pipe wall of the silencing part comprises an outer wall, an inner wall and an interlayer; the interlayer is clamped between the outer wall and the inner wall; the surface of the inner wall is of a porous structure; the interior of the interlayer is of a porous structure; the silencer comprises a front end and a rear end along the flowing direction of the air; the porous mesh plate is arranged facing the flowing direction of the air, and the porous mesh plate is arranged at the rear end of the sound attenuation part; and glass wool is arranged inside the porous screen plate.

Furthermore, the porous screen plate is arranged in an arc shape; the cambered surface of the porous screen plate is arranged to deviate from the flowing direction of air.

Furthermore, a plurality of reinforcing ribs are arranged at the edge of the porous screen plate in a surrounding manner; all the reinforcing ribs are arranged on the cambered surface side of the porous screen plate; one end of the reinforcing rib is fixedly connected with the edge of the porous screen plate; the other end of the reinforcing rib is fixedly arranged on the inner wall of the exhaust pipeline.

Further, a rectifying device is arranged inside the exhaust pipeline, and is arranged at the outlet of the exhaust pipeline; the rectifying device is arranged facing the cambered surface of the porous screen plate; a plurality of air flow channels are uniformly formed in the rectifying device; all the air flow channels penetrate through the rectifying device; all the air flow passages are arranged along the flowing direction of the air.

Further, a one-way valve is arranged at the inlet of the exhaust pipeline.

The utility model has the advantages or beneficial effects that:

according to the air exhaust pipe for the screw compressor, the pipe body of the exhaust pipe is partially provided with the silencing part, air is transmitted into the porous structure in the interlayer through the holes in the inner wall, sound brought by the air is absorbed, the air is firstly absorbed by the first stage of the silencing part and then is absorbed by the second stage of the glass wool in the porous net plate, and by means of the air exhaust pipe, noise brought by compression of the air can be effectively reduced, damage of the noise to hearing of workers can be effectively reduced, and noise pollution can be avoided.

Drawings

The utility model and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the utility model.

Fig. 1 is a schematic view of a connection structure between an air exhaust pipe and a compressor for a screw compressor according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of an air exhaust pipe for a screw compressor according to embodiment 1 of the present invention;

fig. 3 is a partially enlarged view of an air discharge pipe for a screw compressor according to embodiment 1 of the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

As used herein, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the positional or orientational relationship illustrated in the figures to facilitate the description of the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model.

The appearances of the terms first, second, and third, if any, are used for descriptive purposes only and are not intended to be limiting or imply relative importance.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention are described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the utility model without making creative efforts, belong to the protection scope of the utility model.

Example 1

In order to solve the technical problem of large noise pollution when the air compressor discharges air, embodiment 1 provides an air discharge pipe for a screw compressor, as shown in fig. 1 to 3, comprising an air discharge pipe 1 arranged at an outlet of the screw compressor and a porous mesh plate 2 arranged inside the air discharge pipe 1; the exhaust pipeline 1 is provided with a silencing part 11; the pipe wall of the sound-deadening portion 11 includes an outer wall 110, an inner wall 111, and an interlayer 112; the interlayer 112 is interposed between the outer wall 110 and the inner wall 111; the surface of the inner wall 111 is in a porous structure; the interior of the interlayer 112 is of a porous structure; the silencer portion 11 includes a front end and a rear end in the flow direction of the air; the porous mesh plate 2 is arranged facing the flowing direction of the air, and the porous mesh plate 2 is arranged at the rear end of the sound attenuation part 11; the porous mesh plate 2 is internally provided with glass wool.

This embodiment 1 makes noise damping portion 11 through partly on the pipe shaft at exhaust duct 1, the air passes through the porous structure in the porous transmission to intermediate layer 112 on inner wall 111, absorb the sound that the air brought, the air is earlier through the one-level absorption back of noise damping portion 11, the glass cotton in rethread porous mesh plate 2 carries out the second grade and absorbs, can reduce the noise that the air brings after the compression effectively through this setting, can reduce the harm that the noise brought staff's hearing effectively, simultaneously can also avoid noise pollution.

Preferably, this embodiment 1 provides an air exhaust pipe for a screw compressor, as shown in fig. 2, the porous mesh plate 2 is arranged in a circular arc shape; the cambered surface of the perforated screen plate 2 is arranged to deviate from the flowing direction of the air. Through this setting can increase the area of contact of air and porous otter board 2, the noise absorption rate that the air that increases porous otter board 2 brought to the self performance of arcuation structure is strong, can resist the impact force that high-pressure air brought.

In order to enhance the connection strength between the porous mesh plate 2 and the exhaust duct 1, in this embodiment 1, an air exhaust pipe for a screw compressor is provided, as shown in fig. 2, a plurality of reinforcing ribs 21 are circumferentially arranged at the edge of the porous mesh plate 2; all the reinforcing ribs 21 are arranged on the arc surface side of the porous mesh plate 2; one end of the reinforcing rib 21 is fixedly connected with the edge of the porous screen plate 2; the other end of the rib 21 is fixed to the inner wall 111 of the exhaust duct 1. Through the setting of strengthening rib 21, can further fix the joint strength between porous otter board 2 and the inner wall 111 of exhaust duct 1, strengthening rib 21 can also improve the ability that porous otter board 2 resisted the impact force in addition, avoids porous otter board 2 to take place the condition that drops.

Since the air is in a relatively chaotic state when the air is compressed and discharged, which easily affects the working efficiency of the external device, in order to enable the discharged air to be uniformly delivered to the external device, embodiment 1 provides an air exhaust pipe for a screw compressor, as shown in fig. 2, a rectifying device 3 is disposed inside an exhaust duct 1, and the rectifying device 3 is disposed at an outlet of the exhaust duct 1; the rectifying device 3 is arranged facing the cambered surface of the porous screen plate 2; a plurality of air flow channels 31 are uniformly arranged in the rectifying device 3; all air flow passages 31 penetrate through the rectifying device 3; all the air flow channels 31 are arranged in the flow direction of the air. Through this setting, air runner 31 among fairing 3 can be with the effect of chaotic unordered air through the rectification, and the air of 1 exhaust through exhaust duct is orderly, even state at last to can improve compressed air's utilization ratio effectively to a certain extent, improve external device's work efficiency.

Preferably, the present embodiment 1 provides an air vent pipe for a screw compressor, and a check valve 4 is arranged at an inlet of the air vent pipe 1. The setting of check valve 4 can avoid the air to flow against the current, prevents to cause the air transportation improper, and the hot-air backward flow still can cause certain damage to the inside of compressor, therefore this condition can be avoided taking place to the setting of check valve 4.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.

Claims

1. An air exhaust pipe for a screw compressor is characterized by comprising an exhaust pipeline arranged at the outlet of the screw compressor and a porous screen plate arranged in the exhaust pipeline;

the exhaust pipeline is provided with a silencing part; the pipe wall of the silencing part comprises an outer wall, an inner wall and an interlayer; the interlayer is clamped between the outer wall and the inner wall; the surface of the inner wall is of a porous structure; the interior of the interlayer is of a porous structure; the silencer comprises a front end and a rear end along the flowing direction of the air;

the porous mesh plate is arranged facing the flowing direction of the air, and the porous mesh plate is arranged at the rear end of the sound attenuation part; and glass wool is arranged inside the porous screen plate.

2. The air outlet pipe for a screw compressor according to claim 1, wherein the porous mesh plate is provided in a circular arc shape; the cambered surface of the porous screen plate is arranged to deviate from the flowing direction of air.

3. The air exhaust pipe for the screw compressor as claimed in claim 2, wherein a plurality of reinforcing ribs are circumferentially arranged at the edge of the porous mesh plate; all the reinforcing ribs are arranged on the cambered surface side of the porous screen plate; one end of the reinforcing rib is fixedly connected with the edge of the porous screen plate; the other end of the reinforcing rib is fixedly arranged on the inner wall of the exhaust pipeline.

4. The air outlet pipe for the screw compressor according to claim 2, wherein a rectifying device is provided inside the exhaust duct, and the rectifying device is provided at an outlet of the exhaust duct; the rectifying device is arranged facing the cambered surface of the porous screen plate; a plurality of air flow channels are uniformly formed in the rectifying device; all the air flow channels penetrate through the rectifying device; all the air flow passages are arranged along the flowing direction of the air.

5. The air outlet pipe for the screw compressor according to claim 1, wherein a check valve is provided at an inlet of the air outlet pipe.