Spiral air compressor with good exhaust effect

Abstract

The utility model relates to air compressor technical field, concretely is a spiral air compressor with good exhaust effect, including air compressor body, the air outlet end fixed connection of air compressor body has the air outlet pipe, one end of air outlet pipe is provided with oil gas separator, one end fixed connection of oil gas separator has cyclone accelerator, the inner wall side fixed connection of cyclone accelerator has helical guide vane, one end fixed connection of cyclone accelerator has exhaust passage. In the utility model, through the action of inhibiting pressure fluctuation subassembly under the turbulent flow inhibition rib, destroys boundary layer separation, and the large eddy flow is decomposed into small eddy flow, reduces pressure fluctuation amplitude, and the guide vane eliminates vortex shedding phenomenon, the setting of sawtooth slot, destroys vortex periodic drop, eliminates the howling noise, and the inner wall side of through -connection pipe is provided with flexible diaphragm, and flexible diaphragm can pass through the elastic deformation of itself, and the instantaneous change of air flow pressure is buffered, and further reduces pressure fluctuation.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, and in particular to a screw air compressor with good exhaust effect. Background Technology

[0002] An air compressor is a device used to compress gases. Air compressors are similar in construction to water pumps. Most air compressors are reciprocating piston type, rotary vane type, or rotary screw type. Currently used screw air compressors are mostly single-stage compression units, compressing gases by rotating a screw.

[0003] A screw air compressor with authorized publication number CN220302336U includes an air compressor housing. An intake control valve is bolted to the top of the air compressor housing, and an air inlet is bolted to the top of the intake control valve. An exhaust port is bolted to one side of the air compressor housing, and an intercooler is bolted to the side of the air compressor housing near the exhaust port. A primary compression layer is formed at the top of the inner cavity of the air compressor housing, and a secondary compression layer is formed at the bottom of the inner cavity. This application, by using two compression layers and an intercooler in conjunction, reduces the high temperature generated during gas compression, which not only improves the service life of the equipment but also enhances its operational stability, overall energy utilization, and air compression efficiency. It has good practicality and market application prospects.

[0004] Regarding the aforementioned technologies, the existing air compressors have the following drawbacks: they generally suffer from high exhaust resistance and significant airflow pulsation, leading to surge in downstream equipment. Therefore, this utility model provides a screw air compressor with good exhaust performance. Utility Model Content

[0005] The purpose of this application is to provide a screw air compressor with good exhaust performance, so as to solve the problems mentioned in the background art, such as high exhaust resistance and obvious airflow pulsation in existing screw air compressors, which lead to surge in downstream equipment.

[0006] To achieve the above objectives, this application provides the following technical solution: a spiral air compressor with good exhaust effect, comprising an air compressor body, an air outlet pipe fixedly connected to the air outlet end of the air compressor body, an oil-gas separator provided at one end of the air outlet pipe, a vortex accelerator fixedly connected to one end of the oil-gas separator, spiral guide vanes fixedly connected to the inner wall side of the vortex accelerator, an exhaust channel fixedly connected to one end of the vortex accelerator, a plurality of turbulence suppression ribs fixedly connected to the inner wall side of the exhaust channel, the plurality of turbulence suppression ribs being arranged in a spiral shape, and a pressure fluctuation suppression component provided at one end of the exhaust channel.

[0007] Preferably, the pressure fluctuation suppression component includes a flow guide plate disposed on the inner wall side of the exhaust channel. The flow guide plate is composed of multiple flow guide vanes. The edge of the flow guide vane near the cyclone accelerator is elliptical and blunted, and the end of the flow guide vane away from the cyclone accelerator is provided with multiple serrated slots.

[0008] Preferably, the thickness of the guide vane gradually decreases from the end furthest from the cyclone accelerator to the end furthest from the cyclone accelerator.

[0009] Preferably, one end of the exhaust channel is fixedly connected to a connecting pipe, and a flexible diaphragm is provided on the inner wall side of the connecting pipe.

[0010] Preferably, a silencer is fixedly connected to one end of the connecting pipe, and an air intake pipe is fixedly connected to the outside of the air compressor body.

[0011] Preferably, an oil collection frame is fixedly connected to the outside of the cyclone accelerator, and a return oil pipe is fixedly connected to the outside of the oil collection frame. The return oil pipe is connected to the air compressor body, and a one-way valve is installed inside the return oil pipe.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] In this invention, the pressure fluctuation suppression component, under the action of the turbulence suppression rib, disrupts the boundary layer separation, decomposes the large eddy into small eddy, and reduces the pressure fluctuation amplitude. The guide plate eliminates the eddy peeling phenomenon, and the serrated grooves disrupt the periodic shedding of eddy, eliminating whistling noise. Furthermore, a flexible diaphragm is provided on the inner wall side of the connecting pipe. The flexible diaphragm can buffer the instantaneous changes in airflow pressure through its own elastic deformation, further reducing pressure fluctuation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a first-view axial side view of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the second-view axial side structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the flow guide plate in this utility model;

[0018] Figure 4 for Figure 3 A magnified structural diagram at point A.

[0019] In the diagram: 1. Air compressor body; 2. Inlet pipe; 3. Outlet pipe; 4. Oil-gas separator; 5. Swirl accelerator; 6. Oil collection frame; 7. Oil return pipe; 8. Exhaust passage; 9. Connecting pipe; 10. Silencer; 11. Spiral guide vane; 12. Turbulence suppression rib; 13. Guide vane; 14. Flexible diaphragm; 15. Serrated groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1: Reference Figure 1-4The illustrated screw air compressor with good exhaust performance includes an air compressor body 1, which serves as the core power source, compressing air to the required pressure. An outlet pipe 3 is fixedly connected to the air outlet end of the compressor body 1, which transports the compressed air from the compressor body 1 to subsequent processing components. An oil-gas separator 4 is installed at one end of the outlet pipe 3. The oil-gas separator 4 separates lubricating oil mixed in the compressed air from the gas, ensuring the purity of the output gas and preventing lubricating oil from entering subsequent pipelines and equipment. A cyclone accelerator 5 is fixedly connected to one end of the oil-gas separator 4. Spiral guide vanes 11 are fixedly connected to the inner wall of the cyclone accelerator 5, guiding the compressed air to generate a high-speed rotating airflow within the cyclone accelerator 5. Centrifugal force is used to further separate tiny impurities and residual oil droplets from the gas, while simultaneously making the airflow more uniform and stable. One end of the cyclone accelerator 5 is fixedly connected to an exhaust channel 8. Multiple turbulence suppression ribs 12, arranged in a spiral pattern, are fixedly connected to the inner wall of the exhaust channel 8. These ribs effectively suppress turbulence generated when compressed air flows within the exhaust channel 8, reducing airflow disturbance, minimizing energy loss, and ensuring smoother airflow. One end of the exhaust channel 8 is equipped with a pressure fluctuation suppression component. This component includes a guide plate on the inner wall of the exhaust channel 8, composed of multiple guide vanes 13. The edge of the guide vane 13 near the cyclone accelerator 5 is elliptical and blunted, reducing resistance when airflow enters the guide plate and preventing airflow separation and vortex generation due to sharp edges. The end of the guide vane 13 away from the cyclone accelerator 5 has multiple serrated slots 15, and the thickness of the guide vane 13 gradually decreases from the end away from the cyclone accelerator 5. This structural design allows the airflow to gradually disperse and stabilize as it passes through the guide plate, effectively suppressing pressure fluctuations and resulting in more stable output compressed air pressure. One end of the exhaust channel 8 is fixedly connected to a connecting pipe 9. A flexible diaphragm 14 is provided on the inner wall of the connecting pipe 9. The flexible diaphragm 14 can buffer the instantaneous changes in airflow pressure through its own elastic deformation, further reducing pressure fluctuations. At the same time, it plays a certain filtering role in the airflow, preventing small particles from entering the downstream equipment.

[0023] Example 2: Reference Figure 1-4Based on the same concept as in Embodiment 1 above, this embodiment also proposes that one end of the connecting pipe 9 is fixedly connected to a silencer 10, which can effectively reduce the noise generated during the operation of the air compressor and improve the noise pollution of the working environment; an air inlet pipe 2 is fixedly connected to the outside of the air compressor body 1, which is used to guide outside air into the air compressor body 1 to provide an air source for compressed air; an oil collection frame 6 is fixedly connected to the outside of the cyclone accelerator 5, which can separate the oil droplets carried in the compressed air through centrifugal force, and the oil collection frame 6 is used to collect the separated oil droplets; an oil return pipe 7 is fixedly connected to the outside of the oil collection frame 6, which is connected to the air compressor body 1, and sends the oil collected in the oil collection frame 6 back to the air compressor body 1 to realize the recycling of lubricating oil; a one-way valve is installed in the oil return pipe 7, which can prevent the lubricating oil from flowing back and ensure that the lubricating oil can only flow from the oil collection frame 6 to the air compressor body 1.

[0024] The working principle of this product is as follows: Air enters the air compressor body 1 through the intake pipe 2 and is compressed. It is then discharged through the outlet pipe 3. The oil and gas are initially separated by the oil-gas separator 4. The oil and gas enter the cyclone accelerator 5. Under the forced swirling action of the spiral guide vanes 11 in the cyclone accelerator 5, the oil droplets, due to their higher density, are thrown towards the wall of the accelerator and enter the oil collection frame 6. Under the action of the pressurizing pump, they flow back to the air compressor body 1 through the return oil pipe 7. Under the action of the turbulence suppression ribs, the boundary layer separation is broken, the large eddies are decomposed into small eddies, and the pressure fluctuation amplitude is reduced. The guide vanes 13 eliminate the eddy stripping phenomenon. The serrated grooves 15 are set to break the periodic shedding of eddies and eliminate the howling noise.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screw air compressor with good exhaust effect, comprising an air compressor body (1), characterized in that: An air outlet pipe (3) is fixedly connected to the air outlet end of the air compressor body (1). An oil-gas separator (4) is provided at one end of the air outlet pipe (3). A vortex accelerator (5) is fixedly connected to one end of the oil-gas separator (4). A spiral guide vane (11) is fixedly connected to the inner wall side of the vortex accelerator (5). An exhaust channel (8) is fixedly connected to one end of the vortex accelerator (5). A plurality of turbulence suppression ribs (12) are fixedly connected to the inner wall side of the exhaust channel (8). The plurality of turbulence suppression ribs (12) are arranged in a spiral shape. A pressure fluctuation suppression component is provided at one end of the exhaust channel (8).

2. The screw air compressor with good exhaust effect according to claim 1, characterized in that: The pressure fluctuation suppression component includes a flow guide plate disposed on the inner wall side of the exhaust channel (8). The flow guide plate is composed of multiple flow guide plates (13). The edge of the flow guide plate (13) near the swirling accelerator (5) is elliptical and blunt. The end of the flow guide plate (13) away from the swirling accelerator (5) is provided with multiple serrated slots (15).

3. A screw air compressor with good exhaust effect according to claim 2, characterized in that: The thickness of the guide vane (13) gradually decreases from the end away from the cyclone accelerator (5) to the end away from the cyclone accelerator (5).

4. A screw air compressor with good exhaust effect according to claim 1, characterized in that: One end of the exhaust channel (8) is fixedly connected to a connecting pipe (9), and a flexible diaphragm (14) is provided on the inner wall side of the connecting pipe (9).

5. A screw air compressor with good exhaust effect according to claim 4, characterized in that: A silencer (10) is fixedly connected to one end of the connecting pipe (9), and an air inlet pipe (2) is fixedly connected to the outside of the air compressor body (1).

6. A screw air compressor with good exhaust effect according to claim 1, characterized in that: The outer side of the cyclone accelerator (5) is fixedly connected to a connected oil collection frame (6), and the outer side of the oil collection frame (6) is fixedly connected to a connected oil return pipe (7). The oil return pipe (7) is connected to the air compressor body (1), and a one-way valve is installed inside the oil return pipe (7).

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