Air inlet structure for water-lubricated oil-free screw high-pressure air compressor

Abstract

The utility model relates to air compressor technical field discloses a kind of air intake structure for water-lubricated oil-free screw high-pressure air compressor, including underframe, outer frame, air intake component and transmission motor, the air intake component is located in the top of underframe, the air intake component is located at the inner side of outer frame, the end of air intake component away from underframe is fixedly installed with connector two and connector one by bolt.The air intake structure for water-lubricated oil-free screw high-pressure air compressor, when air intake by turbulence ring one, turbulence ring two and turbulence ring three, air can reach filter component by turbulence ring three, turbulence ring two and turbulence ring one, can play the role of guiding to air, can reduce the pressure loss caused by airflow impact, by annular distribution connector column one and connector column two, the weight of turbulence ring one, turbulence ring two and turbulence ring three can be evenly shared, avoid single connector column one and connector column two too large stress leading to deformation, to improve its service life.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, specifically to an air intake structure for a water-lubricated oilless screw high-pressure air compressor. Background Technology

[0002] A single-screw air compressor consists of a cylindrical screw and two symmetrically arranged planar star wheels forming a meshing pair, housed within the main unit housing. The space enclosed by the screw groove, the inner wall of the main unit housing, and the tooth surfaces of the star wheels constitutes the compressor's working volume. The motor directly drives the screw shaft to rotate, which in turn drives the star wheels to rotate. Gas enters the screw groove through the intake port on the main unit, is compressed, and then discharged through the exhaust port on the main unit housing. The main unit housing also has liquid injection holes to spray lubricating oil into the working volume, serving to seal, cool, and lubricate. The intake structure, as the front inlet of the oil-free screw compressor, directly determines the quality of the intake gas, such as dust content, humidity, and temperature, as well as flow stability and intake efficiency, significantly impacting the overall performance and lifespan of the machine.

[0003] Chinese Utility Model Patent Publication No. CN208564968U discloses a water-lubricated single-screw air compressor. The specification of this water-lubricated single-screw air compressor states that internal water spraying replaces oil spraying, lubricating the friction pairs, cooling the compressed air, improving the service life of the screw and star wheel, and providing clean compressed gas. Furthermore, the separated water requires no special treatment, meeting current environmental protection requirements. A sealing mechanism prevents water from entering the bearing housing, significantly extending the bearing's service life. The two star wheel mechanisms are arranged vertically, resulting in stable mechanical performance and low noise and vibration. However, this water-lubricated single-screw air compressor lacks a turbulence-clearing structure. During air intake, the impact of the airflow can easily cause pressure loss in the pressure tank, hindering air intake. Additionally, the lack of a filter structure allows the intake air to contain dust, moisture, and other impurities, affecting normal operation. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an air intake structure for a water-lubricated oilless screw high-pressure air compressor. It can effectively solve the problems in the prior art, which lack a turbulence structure, making it easy for the pressure tank to be lost due to the impact of airflow during air intake, thus making it difficult to intake air. In addition, the lack of a filter structure makes it easy for the intake air to contain impurities such as dust and water vapor, thus affecting normal use.

[0005] The technical solution adopted by this utility model is: an air intake structure for a water-lubricated oilless screw high-pressure air compressor, including a base frame, an outer frame, an air intake assembly and a drive motor. The air intake assembly is located directly above the base frame and at the inner edge of the outer frame. A connecting cover two and a connector one are fixedly installed on the end of the air intake assembly away from the base frame by bolts. An air outlet pipe is provided at the end of the connector one away from the connecting cover two. A distributor is provided at the other end of the air outlet pipe away from the connector one. A turbulence shroud assembly and a filter assembly are provided at the inner edge of the air intake assembly.

[0006] The air intake assembly includes an air intake tank, an air intake pipe is provided at one end of the air intake tank near the base frame, and an inner cavity and a limiting cavity are provided at the inner edge of the air intake tank;

[0007] The turbulence-disrupting assembly includes a first turbulence-disrupting ring, a second turbulence-disrupting ring, and a third turbulence-disrupting ring. A first connecting post is fixedly installed between the first turbulence-disrupting ring and the second turbulence-disrupting ring, and a second connecting post is fixedly installed between the second turbulence-disrupting ring and the third turbulence-disrupting ring.

[0008] The filter assembly includes a mounting ring, a filter cover one, and a filter cover two, with a mounting post one fixedly installed along the inner edge of the mounting ring.

[0009] Preferably, the end of the air inlet tank near the base frame is fixedly installed with a mounting foot, the mounting foot is fixedly installed with the base frame, the end of the air inlet tank away from the base frame is fixedly installed with a connecting cover, and a monitoring meter is provided at the outer edge of the air inlet tank.

[0010] The above technical solution increases the contact area between the air intake tank and the base frame by installing feet, which can fix the air intake tank and prevent it from shifting. In addition, the connecting cover seals the inner cavity and makes it easy to open and inspect the baffle and filter components, which facilitates subsequent maintenance and replacement.

[0011] Preferably, the cross-sections of the first, second, and third turbulence rings are all in the form of a "ring" shape, and the diameters of the first, second, and third turbulence rings increase from top to bottom.

[0012] With the above technical solution, when air is introduced through the first, second and third turbulence rings, the air can reach the filter component through the third, second and first turbulence rings, which can guide the air and reduce the pressure loss caused by airflow impact.

[0013] Preferably, there are multiple identical connecting posts one and two, and the multiple connecting posts one and two are arranged in a ring about the center of the three turbulence rings.

[0014] Through the above technical solution, the weight of the three turbulence rings (one, two, and three) can be evenly distributed by the ring-shaped connecting pillars, avoiding excessive stress on individual connecting pillars and thus improving their service life.

[0015] Preferably, a reserved groove is provided at the inner edge of the mounting ring, and the size of the reserved groove is the same as that of the filter cover.

[0016] With the above technical solution, the outline of the reserved groove is adapted to the edge of the filter cover, so that the filter cover can be quickly embedded into the groove during installation to avoid displacement. This can limit the position of the filter cover and prevent it from being easily displaced, thus affecting its normal use.

[0017] Preferably, a mounting post 2 is fixedly installed between the filter cover 1 and the filter cover 2. The filter cover 1 has a mounting hole 1 from top to bottom, and the filter cover 2 has a mounting hole 2 from top to bottom. The mounting post 1, mounting hole 1, and mounting hole 2 are aligned one-to-one.

[0018] Through the above technical solution, the design of the second mounting column can fix the first and second filter covers, forming a layered filtration space that can be filled with filter media of different precision. Furthermore, the first mounting column can fix the first and second filter covers to the mounting ring, preventing them from loosening under the impact of airflow. Through multi-layer filtration, the cleanliness of the intake air is improved, and impurities such as dust and water vapor are intercepted.

[0019] Preferably, a second connector is provided at the other end of the distributor away from the first connector, a base is fixedly installed on the base frame, a mounting seat is fixedly installed at the other end of the base away from the base frame, a screw air compressor is fixedly installed at the other end of the mounting seat away from the base frame, and a connecting pipe is provided at the other end of the second connector away from the distributor.

[0020] The above technical solution distributes the airflow from the intake tank evenly to the screw air compressor through the distributor, and the base and mounting seat enhance the stability of the air compressor, counteract vibrations during the compression process, and prevent leakage at pipeline connections.

[0021] Compared with the prior art, this utility model provides an intake structure for a water-lubricated oilless screw high-pressure air compressor, which has the following beneficial effects:

[0022] 1. The intake structure of this water-lubricated oilless screw high-pressure air compressor, when intake is achieved through turbulence ring one, turbulence ring two, and turbulence ring three, allows the air to pass through turbulence ring one, turbulence ring two, and turbulence ring one to reach the filter assembly. This guides the air and reduces pressure loss caused by airflow impact. The annularly distributed connecting columns one and two evenly distribute the weight of turbulence ring one, turbulence ring two, and turbulence ring three, preventing excessive stress on individual connecting columns one and two, which could lead to deformation and thus improve their service life.

[0023] 2. The intake structure of this water-lubricated oilless screw high-pressure air compressor, through the design of the second mounting column, can fix the first and second filter covers, forming a layered filtration space that can be filled with filter media of different precision. Furthermore, the first mounting column can fix the first and second filter covers to the mounting ring, preventing the first and second filter covers from loosening under the impact of airflow. Through multi-layer filtration, the cleanliness of the intake air is improved, and impurities such as dust and water vapor are intercepted. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the installation structure of the distributor and connector of this utility model. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the installation structure of the distributor and connector of this utility model. Figure 2 ;

[0028] Figure 5 This is a three-dimensional structural diagram of the air intake assembly of this utility model;

[0029] Figure 6 This is a schematic cross-sectional view of the air intake assembly of this utility model;

[0030] Figure 7 This is a schematic diagram of the disassembled structure of the air intake assembly of this utility model;

[0031] Figure 8 This is a three-dimensional structural diagram of the turbulence-disrupting component and the filter component of this utility model.

[0032] The components include: 1. Base frame; 2. Outer frame; 3. Intake assembly; 301. Intake tank; 302. Mounting foot; 303. Intake pipe; 304. Inner cavity; 305. Limiting cavity; 306. Connecting cover one; 307. Monitoring gauge; 4. Connecting cover two; 5. Connector one; 6. Outlet pipe; 7. Distributor; 8. Connector two; 9. Screw air compressor; 10. Mounting base; 11. Base; 12. Drive motor; 13. Connecting pipe. 14. Flow-deflecting assembly; 1401. Flow-deflecting ring one; 1402. Connecting post one; 1403. Flow-deflecting ring two; 1404. Connecting post two; 1405. Flow-deflecting ring three; 15. Filter assembly; 1501. Mounting ring; 1502. Reserved slot; 1503. Mounting post one; 1504. Filter cover one; 1505. Mounting hole one; 1506. Mounting post two; 1507. Filter cover two; 1508. Mounting hole two. Detailed Implementation

[0033] 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.

[0034] Example 1: As Figure 1-8 As shown, the present invention provides an air intake structure for a water-lubricated oilless screw high-pressure air compressor, including a base frame 1, an outer frame 2, an air intake assembly 3, and a drive motor 12. The air intake assembly 3 is located directly above the base frame 1 and at the inner edge of the outer frame 2. A connecting cover 4 and a connector 5 are fixedly installed at the end of the air intake assembly 3 away from the base frame 1 by bolts. An air outlet pipe 6 is provided at the end of the connector 5 away from the connecting cover 4, and a distributor 7 is provided at the other end of the air outlet pipe 6 away from the connector 5. A turbulence assembly 14 and a filter assembly 15 are provided at the inner edge of the air intake assembly 3.

[0035] The air intake assembly 3 includes an air intake tank 301. An air intake pipe 303 is provided at one end of the air intake tank 301 near the base frame 1. An inner cavity 304 and a limiting cavity 305 are provided at the inner edge of the air intake tank 301.

[0036] The turbulence assembly 14 includes a first turbulence ring 1401, a second turbulence ring 1403, and a third turbulence ring 1405. A first connecting post 1402 is fixedly installed between the first turbulence ring 1401 and the second turbulence ring 1403, and a second connecting post 1404 is fixedly installed between the second turbulence ring 1403 and the third turbulence ring 1405.

[0037] The filter assembly 15 includes a mounting ring 1501, a first filter cover 1504 and a second filter cover 1507, and a first mounting post 1503 is fixedly installed at the inner edge of the mounting ring 1501.

[0038] Specifically, an mounting foot 302 is fixedly installed at the end of the air intake tank 301 near the base frame 1, and the mounting foot 302 is fixedly installed to the base frame 1. A connecting cover 306 is fixedly installed at the end of the air intake tank 301 away from the base frame 1. A monitoring gauge 307 is provided at the outer edge of the air intake tank 301. The advantage is that the mounting foot 302 increases the contact area between the air intake tank 301 and the base frame 1, which can fix the air intake tank 301 and prevent the air intake tank 301 from shifting. The connecting cover 306 seals the inner cavity 304 and facilitates the opening and maintenance of the baffle assembly 14 and the filter assembly 15, which is convenient for subsequent maintenance and replacement.

[0039] Specifically, the cross-sections of the first baffle ring 1401, the second baffle ring 1403, and the third baffle ring 1405 are all in a "ring" shape. The diameters of the first baffle ring 1401, the second baffle ring 1403, and the third baffle ring 1405 increase from top to bottom. The advantage is that when air is intake through the first baffle ring 1401, the second baffle ring 1403, and the third baffle ring 1405, the air can reach the filter assembly 15 through the third baffle ring 1405, the second baffle ring 1403, and the first baffle ring 1401, which can guide the air and reduce the pressure loss caused by airflow impact.

[0040] Specifically, multiple connecting posts 1402 and 1404 are provided. These multiple connecting posts 1402 and 1404 are arranged in a ring around the center of the three flow rings 1401, 1403, and 1405. The advantage is that the ring-shaped distribution of connecting posts 1402 and 1404 can evenly distribute the weight of the three flow rings 1401, 1403, and 1405, avoiding excessive stress on a single connecting post 1402 or 1404 that could cause deformation, thereby improving their service life.

[0041] Example 2: Figure 2-8 As shown, this is an improvement on the previous embodiment.

[0042] Specifically, a reserved groove 1502 is provided on the inner edge of the mounting ring 1501. The size of the reserved groove 1502 is the same as that of the filter cover 1504. The advantage is that, by matching the outline of the reserved groove 1502 with the edge of the filter cover 1504, the filter cover 1504 can be quickly embedded into the groove during installation, avoiding displacement. This can limit the position of the filter cover 1504 and prevent it from easily shifting, thus affecting its normal use.

[0043] Specifically, a mounting post 1506 is fixedly installed between filter cover 1504 and filter cover 1507. Filter cover 1504 has a mounting hole 1505 from top to bottom, and filter cover 1507 has a mounting hole 1508 from top to bottom. The mounting post 1503, mounting hole 1505, and mounting hole 1508 are aligned one-to-one. The advantage is that the design of the mounting post 1506 can fix filter cover 1504 and filter cover 1507, forming a layered filtration space that can be filled with filter media of different precision. Furthermore, the mounting post 1503 can fix filter cover 1504 and filter cover 1507 to the mounting ring 1501, preventing filter cover 1504 and filter cover 1507 from loosening under airflow impact. Through multi-layer filtration, the cleanliness of the intake air is improved, and dust, water vapor, and other impurities are intercepted.

[0044] Specifically, connector 8 is provided at the other end of distributor 7 away from connector 5. Base 11 is fixedly installed on base frame 1. Mounting seat 10 is fixedly installed at the other end of base 11 away from base frame 1. Screw air compressor 9 is fixedly installed at the other end of mounting seat 10 away from base frame 1. Connecting pipe 13 is provided at the other end of connector 8 away from distributor 7. The advantage is that the airflow of intake tank 301 is evenly distributed to screw air compressor 9 through distributor 7, and base 11 and mounting seat 10 enhance the stability of air compressor, counteract vibration during compression, and prevent leakage at pipeline connection.

[0045] Working principle: During use, the mounting feet 302 increase the contact area between the air intake tank 301 and the base frame 1, which can fix the air intake tank 301 and prevent it from shifting. The connecting cover 306 seals the inner cavity 304, while also facilitating the opening and maintenance of the baffle assembly 14 and filter assembly 15, making subsequent maintenance and replacement easier. When air is intake through the baffle rings 1401, 1403, and 1405, the air passes through the baffle rings. The three rings 1405 (1405), 1403 (2), and 1401 (1401) reach the filter assembly 15 and guide the airflow, reducing pressure loss caused by airflow impact. The annularly distributed connecting posts 1402 (1402) and 1404 (2) evenly distribute the weight of these rings, preventing excessive stress on any single connecting post and thus extending their service life. By adapting the contour of the pre-reserved groove 1502 to the edge of the filter cover 1504, the filter cover 1504 can be quickly embedded into the groove during installation, preventing displacement and limiting its position to prevent easy displacement that could affect its normal use. The design of the mounting post 1506 allows the filter cover 1504 and filter cover 1507 to be fixed, forming a layered filtration space that can be filled with filter media of different precision. Furthermore, the mounting post 1503 can fix the filter cover 1504 and filter cover 1507 to the mounting ring 1501, preventing them from loosening under airflow impact. Through multi-layer filtration, the cleanliness of the intake air is improved, intercepting impurities such as dust and moisture. The airflow from the intake tank 301 is evenly distributed to the screw air compressor 9 by the distributor 7. The base 11 and mounting seat 10 enhance the stability of the air compressor, counteract vibrations during compression, and prevent leakage at pipeline connections.

[0046] 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. An intake structure for a water-lubricated oilless screw high-pressure air compressor, comprising a base frame (1), an outer frame (2), an intake assembly (3), and a drive motor (12), characterized in that: The air intake assembly (3) is located directly above the base frame (1). The air intake assembly (3) is located at the inner edge of the outer frame (2). The end of the air intake assembly (3) away from the base frame (1) is fixedly installed with a connecting cover (4) and a connector (5) by bolts. The end of the connector (5) away from the connecting cover (4) is provided with an air outlet pipe (6). The other end of the air outlet pipe (6) away from the connector (5) is provided with a distributor (7). The inner edge of the air intake assembly (3) is provided with a turbulence assembly (14) and a filter assembly (15). The air intake assembly (3) includes an air intake tank (301), an air intake pipe (303) is provided at one end of the air intake tank (301) near the base frame (1), and an inner cavity (304) and a limiting cavity (305) are provided at the inner edge of the air intake tank (301). The turbulence assembly (14) includes a first turbulence ring (1401), a second turbulence ring (1403), and a third turbulence ring (1405). A first connecting post (1402) is fixedly installed between the first turbulence ring (1401) and the second turbulence ring (1403), and a second connecting post (1404) is fixedly installed between the second turbulence ring (1403) and the third turbulence ring (1405). The filter assembly (15) includes a mounting ring (1501), a filter cover one (1504) and a filter cover two (1507), and a mounting post one (1503) is fixedly installed at the inner edge of the mounting ring (1501).

2. The intake structure for a water-lubricated oilless screw high-pressure air compressor according to claim 1, characterized in that: The air inlet tank (301) is fixedly installed with a mounting foot (302) at one end near the base frame (1). The mounting foot (302) is fixedly installed with the base frame (1). The air inlet tank (301) is fixedly installed with a connecting cover (306) at one end away from the base frame (1). A monitoring meter (307) is provided at the outer edge of the air inlet tank (301).

3. The intake structure for a water-lubricated oilless screw high-pressure air compressor according to claim 1, characterized in that: The cross-sections of the first (1401), the second (1403), and the third (1405) of the turbulence ring are all in the shape of a "ring". The diameters of the first (1401), the second (1403), and the third (1405) of the turbulence ring are distributed in an increasing manner from top to bottom.

4. The intake structure for a water-lubricated oilless screw high-pressure air compressor according to claim 1, characterized in that: The first connecting post (1402) and the second connecting post (1404) are provided in multiples, and the multiple first connecting posts (1402) and second connecting posts (1404) are distributed in a ring about the center of the first turbulence ring (1401), the second turbulence ring (1403) and the third turbulence ring (1405).

5. The intake structure for a water-lubricated oilless screw high-pressure air compressor according to claim 1, characterized in that: A reserved groove (1502) is provided at the inner edge of the mounting ring (1501), and the size of the reserved groove (1502) is the same as that of the filter cover (1504).

6. The intake structure for a water-lubricated oilless screw high-pressure air compressor according to claim 5, characterized in that: A mounting post 2 (1506) is fixedly installed between the filter cover 1 (1504) and the filter cover 2 (1507). The filter cover 1 (1504) has a mounting hole 1 (1505) from top to bottom, and the filter cover 2 (1507) has a mounting hole 2 (1508) from top to bottom. The mounting post 1 (1503), mounting hole 1 (1505) and mounting hole 2 (1508) are aligned one-to-one.

7. The intake structure for a water-lubricated oilless screw high-pressure air compressor according to claim 1, characterized in that: The distributor (7) is provided with a connector (8) at the other end away from connector one (5). A base (11) is fixedly installed on the base frame (1). A mounting seat (10) is fixedly installed at the end of the base (11) away from the base frame (1). A screw air compressor (9) is fixedly installed at the end of the mounting seat (10) away from the base frame (1). A connecting pipe (13) is provided at the other end of connector two (8) away from the distributor (7).

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