Static scroll plate for exhaust port of compressor

Abstract

The utility model relates to the technical field of compressors, in particular to a static scroll plate for an exhaust port of a compressor, an exhaust cavity communicated with high-pressure airflow is arranged on the outer side of a molded line part of the static plate, and a one-way valve assembly for exhausting the high-pressure airflow and a filtering oil return assembly for filtering oil gas in the high-pressure airflow are arranged in the exhaust cavity. The scroll compressor has the beneficial effects that the exhaust cavity is directly connected with the static scroll plate, so that the purposes of forming vertical exhaust flow and greatly reducing airflow pulsation are achieved, oil gas in airflow is recovered by matching with closure of the one-way valve assembly, forming noise reduction and buffering on the airflow and matching with the filtering oil return assembly, the stability of the exhausted airflow is further improved, and the service life of the scroll compressor is prolonged. And meanwhile, oil liquid can be conveniently recycled, and the stability of discharged high-pressure airflow is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically to a static scroll plate for compressor exhaust ports. Background Technology

[0002] Inside a compressor, a gas compression device consisting of a moving scroll plate and a stationary scroll plate is typically used to prepare high-pressure airflow. Gas enters the gap between the moving scroll plate and the stationary scroll plate. Through the movement of the moving scroll plate, the internal cavity containing the airflow is gradually compressed, thereby increasing the internal pressure of the airflow and forming a high-pressure airflow.

[0003] However, in actual operation, the discharged high-temperature and high-pressure airflow has large pulsations and unstable airflow state, which causes inconvenience to the subsequent use of the compressor and may even affect the service life of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a static scroll plate for the exhaust port of a compressor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A stationary scroll plate for a compressor exhaust port includes a stationary scroll plate with a stationary plate profile portion. An exhaust chamber that is vertically connected to a high-pressure airflow is provided on the outer side of the stationary plate profile portion. The exhaust chamber is provided with a one-way valve assembly for discharging the high-pressure airflow and a filter return oil assembly for filtering oil and gas in the high-pressure airflow.

[0007] Preferably, the exhaust chamber includes a buffer zone, an exhaust zone, and a return oil zone. The buffer zone is provided with an exhaust port for the high-pressure gas formed after compression by the moving scroll plate and the stationary scroll plate. The one-way valve assembly is disposed between the buffer zone and the exhaust zone, and the oil return filter assembly is disposed in the return oil zone.

[0008] Preferably, the one-way valve assembly includes a valve seat, a valve cover, and a ball. The valve seat is installed in the lower end cavity of the exhaust zone, the upper end of the valve seat is provided with a valve cover, and the inside of the valve seat is provided with a ball.

[0009] Preferably, a gap is left between the valve seat and the inner wall of the exhaust zone, and multiple sets of sealing gaskets are provided in the gap, and the lower end of the valve seat is connected to the buffer zone.

[0010] Preferably, the valve cover is provided with multiple sets of support columns, with gaps between adjacent support columns, and the lower end of the inner cavity of the valve seat is provided with a sealing cone surface that can cooperate with the ball for sealing.

[0011] Preferably, the oil return filter assembly includes a filter screen and an oil return hole. The filter screen is located at the connection port between the buffer zone and the oil return zone. The oil return hole is located on the side of the filter screen away from the buffer zone, and the oil return hole connects the high-pressure chamber and the low-pressure chamber formed by the moving scroll plate and the stationary scroll plate.

[0012] Preferably, a four-point pipe interface is provided on the outer side of the exhaust zone.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention directly connects the exhaust chamber to the static vortex disk to form a vertical exhaust flow. Combined with the flow interception of the one-way valve assembly, it reduces noise and buffers the airflow. With the oil return filter assembly, it recovers the oil and gas in the airflow, further improving the stability of the exhaust airflow. At the same time, it facilitates the recovery and reuse of oil, greatly improving the stability of the exhaust high-pressure airflow. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the distribution structure of the exhaust chamber in the stationary disc profile of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the exhaust chamber of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention.

[0018] In the diagram: 1. Static disc profile; 2. Exhaust chamber; 3. Exhaust zone; 4. Buffer zone; 5. Oil return zone; 6. Valve cover; 7. Support column; 8. Ball; 9. Sealing cone surface; 10. Sealing gasket; 11. Exhaust hole; 12. Valve seat; 13. Filter screen; 14. Oil return hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 3 This utility model provides a technical solution:

[0021] A stationary scroll plate for a compressor exhaust port includes a stationary scroll plate with a stationary plate profile portion 1. An exhaust chamber 2, vertically communicating with a high-pressure gas flow, is located outside the stationary plate profile portion 1. The exhaust chamber 2 contains a one-way valve assembly for discharging the high-pressure gas flow and a filter return assembly for filtering oil and gas in the high-pressure gas flow. The exhaust chamber 2 includes a buffer zone 4, an exhaust zone 3, and an oil return zone 5. The buffer zone 4 has an exhaust port 11 connecting the high-pressure gas formed after compression by the moving scroll plate and the stationary scroll plate. The one-way valve assembly is located in the buffer zone 4 and the exhaust port 5. Between zones 3, the one-way valve assembly includes a valve seat 12, a valve cover 6, and a ball 8. The valve seat 12 is installed in the lower inner cavity of the exhaust zone 3, and the valve cover 6 is provided at the upper end of the valve seat 12. The ball 8 is provided inside the valve seat 12. A gap is left between the valve seat 12 and the inner wall of the exhaust zone 3, and multiple sets of sealing gaskets 10 are provided in the gap. The lower inner cavity of the valve seat 12 is connected to the buffer zone 4. Multiple sets of support columns 7 are provided on the valve cover 6, and a gap is left between adjacent support columns 7. The lower end of the inner cavity of the valve seat 12 is provided with a sealing cone surface 9 that can cooperate with the ball 8 to seal.

[0022] By setting up a one-way valve assembly, the high-pressure airflow can be intercepted, thereby reducing pulsation and achieving noise reduction and buffering of the airflow.

[0023] The oil return filter assembly is located in the oil return zone 5. The oil return filter assembly includes a filter screen 13 and an oil return hole 14. The filter screen 13 is located at the port where the buffer zone 4 and the oil return zone 5 are connected. The oil return hole 14 is located on the side of the filter screen 13 away from the buffer zone 4, and the oil return hole 14 connects the high-pressure chamber and the low-pressure chamber formed by the moving scroll plate and the stationary scroll plate. A four-point pipe interface is provided on the outside of the exhaust zone 3.

[0024] By setting up filter screen 13 to filter particulate matter in the refrigeration oil, the oil return hole 14 is prevented from being blocked. The oil return hole 14 connects the high pressure chamber and the low pressure chamber, allowing the refrigeration oil in the high pressure chamber to flow back to the low pressure chamber to lubricate the rotating mechanism.

[0025] Working principle: First, the airflow enters the inlet ports of the moving and stationary scroll plates. Through the rotation of the moving scroll plate, the airflow is gradually compressed to accommodate the inner cavity, thereby forming a high-pressure, high-temperature airflow. The airflow impacts the buffer zone 4 through the exhaust port 11. The vertically distributed flow channels buffer the airflow. At the same time, the airflow impacts the ball 8, which presses against the support column 7 of the valve cover 6. The airflow is discharged along the gap between the support columns 7. When the airflow passes through the inner cavity of the valve seat 12, most of the airflow pulsation is eliminated, achieving the purpose of noise reduction and making the discharged airflow smooth. The refrigerant oil in the airflow is filtered by the filter screen 13 and flows back to the low-pressure chamber through the oil return hole 14 to achieve the purpose of lubricating the rotating mechanism.

[0026] At the same time, when the compressor is not working, the ball 8 presses against the sealing cone surface 9, thereby sealing the one-way valve assembly and preventing it from contacting the external environment.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stationary scroll plate for a compressor exhaust port, comprising a stationary scroll plate, wherein a stationary disk profile portion (1) is provided on the stationary scroll plate, characterized in that: The outer side of the static disc profile (1) is provided with an exhaust chamber (2) that is vertically connected to the high-pressure airflow. The exhaust chamber (2) is provided with a one-way valve assembly for discharging the high-pressure airflow and a filter return assembly for filtering the oil and gas in the high-pressure airflow.

2. The stationary scroll plate for the compressor exhaust port according to claim 1, characterized in that: The exhaust chamber (2) includes a buffer zone (4), an exhaust zone (3) and an oil return zone (5). The buffer zone (4) is provided with an exhaust port (11) for the high-pressure gas formed after compression by the moving vortex disk and the stationary vortex disk. The one-way valve assembly is located between the buffer zone (4) and the exhaust zone (3), and the oil return filter assembly is located in the oil return zone (5).

3. A stationary scroll plate for a compressor exhaust port according to claim 2, characterized in that: The one-way valve assembly includes a valve seat (12), a valve cover (6), and a ball (8). The valve seat (12) is installed in the lower end cavity of the exhaust zone (3). The valve cover (6) is provided at the upper end of the valve seat (12), and the ball (8) is provided inside the valve seat (12).

4. A stationary scroll plate for a compressor exhaust port according to claim 3, characterized in that: There is a gap between the valve seat (12) and the inner wall of the exhaust zone (3), and multiple sets of sealing gaskets (10) are provided in the gap. The lower end of the valve seat (12) is connected to the buffer zone (4).

5. A stationary scroll plate for a compressor exhaust port according to claim 4, characterized in that: The valve cover (6) is provided with multiple sets of support columns (7), with gaps between adjacent support columns (7), and the lower end of the inner cavity of the valve seat (12) is provided with a sealing cone surface (9) that can cooperate with the ball (8) for sealing.

6. A stationary scroll plate for a compressor exhaust port according to claim 2, characterized in that: The oil return filter assembly includes a filter screen (13) and an oil return hole (14). The filter screen (13) is located at the port where the buffer zone (4) and the oil return zone (5) are connected. The oil return hole (14) is located on the side of the filter screen (13) away from the buffer zone (4) and the oil return hole (14) is connected to the high-pressure chamber and the low-pressure chamber formed by the moving scroll plate and the stationary scroll plate.

7. A stationary scroll plate for a compressor exhaust port according to claim 2, characterized in that: A four-point pipe interface is provided on the outside of the exhaust zone (3).

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