Silent high-efficiency oil-free screw air compressor

Abstract

The utility model discloses a mute type high -efficient oil -free screw rod air compressor, including the case, the case includes at least one mute side plate, the mute side plate includes first board spare, second board spare, third board spare and fourth board spare from outside to inside in proper order, a plurality of pieces of inclined board spare are arranged on second board spare and are longitudinally arranged and are provided with a plurality of rows first vent, and each row first vent is arranged between two adjacent inclined board spare, and first installation space is arranged between second board spare and third board spare, and second installation space is arranged between third board spare and fourth board spare, and second board spare is provided with the first intercommunication of first installation space and first vent, and third board spare is provided with the second intercommunication for intercommunication first installation space and second installation space, and fourth board spare is provided with the third intercommunication of second installation space and the case inside intercommunication.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, and in particular to a quiet, high-efficiency oil-free screw air compressor. Background Technology

[0002] In industrial production and various pneumatic equipment driving scenarios, air compressors, as core equipment providing compressed air, are closely related to their stable operation and heat dissipation performance. During operation, the main unit and compression device of an air compressor continuously generate a large amount of heat. If this heat cannot be dissipated in time, the internal temperature of the equipment will rise, which will not only reduce work efficiency but may also cause problems such as accelerated component aging, malfunctions, or even shutdowns.

[0003] To address the aforementioned heat dissipation issues, a common solution in existing technologies is to create ventilation openings on the side panel of the air compressor's casing. These openings allow for air exchange between the internal and external environments, carrying away the heat generated during operation and thus maintaining the internal temperature within a reasonable range, ensuring the air compressor's normal operation.

[0004] However, the existing technical solution of dissipating heat solely through ventilation openings in the side panels has obvious drawbacks and shortcomings:

[0005] On the one hand, the vents were not effectively waterproofed. In actual use environments, air compressors may face rain, humid conditions, or situations where water is sprayed nearby. External water can easily enter the casing through unwaterproofed vents. Once moisture intrudes, it can not only affect the insulation performance of internal electrical components but also cause problems such as short circuits and component corrosion. In severe cases, it can directly damage the equipment, significantly shorten the lifespan of the air compressor, and increase equipment maintenance costs and downtime losses.

[0006] On the other hand, the ventilation openings lack necessary sound insulation measures. When the air compressor is running, the operation of the main unit and the working of the compression device generate significant noise, which is transmitted directly to the external environment through the open ventilation openings. Excessive noise not only causes serious sound pollution to operators and the surrounding work environment, affecting work comfort, but may also lead to health problems such as hearing damage and fatigue for operators, failing to meet the environmental and health requirements of modern industrial production.

[0007] Therefore, how to effectively solve the problems of waterproofing and sound insulation of the ventilation openings while ensuring the heat dissipation performance of the air compressor has become a key direction that urgently needs to be improved in the existing air compressor technology field. Utility Model Content

[0008] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a quiet, high-efficiency oil-free screw air compressor.

[0009] A quiet, high-efficiency, oil-free screw air compressor designed for this purpose includes a casing, the casing including at least one quiet side plate;

[0010] The silent side panel comprises, from the outside to the inside, a first panel, a second panel, a third panel, and a fourth panel.

[0011] The second plate has a plurality of inclined plates arranged longitudinally, the inclined plates being gradually inclined downward from the second plate toward the first plate;

[0012] The first plate has several rows of first ventilation openings arranged longitudinally, with each row of first ventilation openings located between two adjacent inclined plates.

[0013] A first mounting space is provided between the second plate and the third plate; a second mounting space is provided between the third plate and the fourth plate;

[0014] The second plate is provided with a first communication port that communicates with the first mounting space and the first ventilation port;

[0015] The third plate is provided with a second communication port for connecting the first installation space and the second installation space.

[0016] The fourth plate is provided with a third communication port that communicates with the second mounting space and the inside of the chassis.

[0017] Preferably, the first installation space and the second installation space have openings on their upper sides.

[0018] Preferably, the second connecting port and the third connecting port are longitudinally offset.

[0019] Preferably, a main unit is provided inside the chassis, and the main unit is connected to a first compression device and a second compression device via a transmission connection;

[0020] The chassis is equipped with a first cooler and a second cooler;

[0021] A first fitting is connected to the air output end of the first compressor and the air input end of the first cooler; a second fitting is connected to the air output end of the first cooler and the air input end of the second compressor.

[0022] The air output end of the second compressor is connected to the air input end of the second cooler via a third fitting, and the air output end of the second cooler is connected to a fourth fitting.

[0023] Preferably, the second pipe fitting is equipped with a first gas-liquid separator.

[0024] Preferably, the fourth fitting is equipped with a second gas-liquid separator.

[0025] Preferably, the chassis is equipped with a third cooler and a circulating oil pump;

[0026] The input end of the circulating oil pump is connected to the oil output end of the main unit;

[0027] The output end of the circulating oil pump is connected to the oil inlet of the third cooler;

[0028] The oil outlet of the third cooler is connected to the oil inlet of the main unit.

[0029] Preferably, the air input end of the first compression device is connected to an air intake filter.

[0030] Compared with the prior art, the silent side plate structure design of this silent high-efficiency oil-free screw air compressor brings many beneficial effects:

[0031] Firstly, by combining the inclined plate with the first ventilation opening, the inclined plate can effectively block external water flow. Combined with the air circulation path design of the multi-layer plate, it can significantly improve waterproof performance, prevent external moisture from directly invading the inside of the chassis, and reduce the risk of equipment failure due to water ingress.

[0032] Secondly, by utilizing the first and second installation spaces, sound-insulating filter components such as filter screens can be easily installed. These components can absorb and block noise during air circulation. At the same time, the tortuous airflow channel formed by the multi-layered panels can further attenuate noise, significantly reducing the amount of noise transmitted to the outside during air compressor operation and improving the comfort of the surrounding working environment.

[0033] Thirdly, the first ventilation port, the first connecting port, the second connecting port, and the third connecting port form a continuous ventilation path, ensuring smooth airflow between the inside and outside of the chassis and meeting the heat dissipation requirements of the equipment; and the filter in the first installation space can filter the air entering the chassis, reducing the entry of dust and other impurities, which helps maintain the operational stability of the host and the compressor unit and improve the service life of the equipment. Attached Figure Description

[0034] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0035] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention;

[0036] Figure 3This is the third three-dimensional structural schematic diagram of the present invention;

[0037] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0038] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0039] Figure 6 This is one of the schematic diagrams of the cross-sectional structure of the side plate;

[0040] Figure 7 This is the second schematic diagram of the cross-sectional structure of the side plate. Detailed Implementation

[0041] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0043] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0044] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0045] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0046] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0047] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0048] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0049] See Figures 1-7 A quiet, high-efficiency, oil-free screw air compressor includes a casing 10, which includes at least one quiet side plate 110. The quiet side plate 110 includes, from the outside to the inside, a first plate 111, a second plate 112, a third plate 113, and a fourth plate 114. Several inclined plates 115 are arranged longitudinally on the second plate 112, and the inclined plates 115 gradually slope downwards from the second plate 112 towards the first plate 111. Several rows of first ventilation openings 116 are arranged longitudinally on the first plate 111, with each row of first ventilation openings 116 located on two adjacent inclined plates. Between 115; a first mounting space 117 is provided between the second plate 112 and the third plate 113; a second mounting space 118 is provided between the third plate 113 and the fourth plate 114; the second plate 112 is provided with a first connecting port 119 communicating with the first mounting space 117 and the first ventilation port 116; the third plate 113 is provided with a second connecting port 120 for communicating with the first mounting space 117 and the second mounting space 118; the fourth plate 114 is provided with a third connecting port 121 communicating with the second mounting space 118 and the interior of the chassis 10.

[0050] The working principle of this silent, high-efficiency oil-free screw air compressor revolves around the silent side plate 110 of the casing 10 to achieve air circulation, waterproofing, and sound insulation. The specific process is as follows:

[0051] When the air compressor is running, the heat generated inside the casing 10 due to the operation of the main unit and the compression device creates a pressure difference between the inside and outside, driving external air to enter the casing through the silent side panel 110. The external air first enters through the first vent 116 on the first plate 111. Since there are inclined plates 115 that are correspondingly provided between adjacent first vents 116, gradually sloping downwards from the second plate 112 toward the first plate 111, the inclined plates 115 can prevent external water droplets from entering directly, thus playing a preliminary waterproofing role.

[0052] After passing through the first vent 116, air enters the first mounting space 117 through the first connecting port 119 on the second plate 112; then flows into the second mounting space 118 through the second connecting port 120 on the third plate 113; and finally enters the chassis 10 through the third connecting port 121 on the fourth plate 114, where it mixes with the internal hot air and carries away the heat through air circulation, thus achieving heat dissipation.

[0053] Meanwhile, sound-insulating filter components such as filter screens can be installed in the first installation space 117 and the second installation space 118. When air passes through the two installation spaces, the sound-insulating filter components can absorb some noise, and the airflow path between the multiple plates is extended, further weakening the noise transmission and achieving a sound insulation effect. The tortuous channel formed by the inclined plate 115 and the multiple plates can effectively block external moisture from entering the chassis, ensuring the safe operation of the equipment.

[0054] In this utility model, the sound-insulating filter components such as the filter screen are existing products.

[0055] In this invention, the first installation space 117 and the second installation space 118 are provided with openings on their upper sides. These upper openings provide a convenient passage for placing and replacing sound-insulating filter components such as filter screens. Operators do not need to disassemble the entire silent side panel 110; they can easily place or remove the filter components for cleaning or replacement through the openings. This significantly simplifies the operation process, reduces maintenance difficulty, saves time and labor costs, and helps ensure the continuous and effective operation of the filter components.

[0056] In this invention, the second connecting port 120 and the third connecting port 121 are longitudinally offset. In terms of sound insulation, this offset design extends the noise propagation path. Noise from inside the air compressor enters the second installation space 118 through the third connecting port 121 and must bypass the longitudinally offset second connecting port 120 to continue propagating outwards. During this process, the noise is continuously attenuated due to the extended path. Simultaneously, in conjunction with the sound-insulating filters in the first installation space 117 and the second installation space 118, the noise energy can be further weakened, significantly enhancing the overall sound insulation effect and reducing noise pollution to the external environment.

[0057] In this invention, a main unit 20 is housed within the chassis 10, and the main unit 20 is connected to a first compression device 210 and a second compression device 220 via a transmission structure. A first cooler 30 and a second cooler 40 are mounted on the chassis 10. A first pipe 310 connects the air output end of the first compression device 210 to the air input end of the first cooler 30. A second pipe 320 connects the air output end of the first cooler 30 to the air input end of the second compression device 220. A third pipe 410 connects the air output end of the second compression device 220 to the air input end of the second cooler 40, and a fourth pipe 420 connects the air output end of the second cooler 40. When the equipment is started, the main unit 20 within the chassis 10 begins to operate, synchronously driving the first compression device 210 and the second compression device 220 through a transmission structure. Outside air first enters the first compression unit 210, where it undergoes initial compression. The resulting compressed air is then transported to the first cooler 30 via the first pipe 310. The first cooler 30 cools the initially compressed air, lowering its temperature to improve subsequent compression efficiency. The cooled air then enters the second compression unit 220 via the second pipe 320 for secondary compression to achieve the required pressure level. The high-pressure air from this secondary compression then enters the second cooler 40 via the third pipe 410 for further cooling, further reducing its temperature and preventing high temperatures from affecting subsequent air-using equipment. Finally, the twice-cooled compressed air is output to the external air-using system via the fourth pipe 420, completing the entire compression and cooling cycle.

[0058] In this invention, the second pipe fitting 320 is equipped with a first gas-liquid separator 330, and the fourth pipe fitting 420 is equipped with a second gas-liquid separator 430. The first gas-liquid separator 330, installed in the second pipe fitting 320, separates condensate from the air cooled by the first cooler 30, preventing moisture from entering the second compression device 220 and affecting its operation. The second gas-liquid separator 430, installed in the fourth pipe fitting 420, removes residual liquid substances from the high-pressure air after secondary cooling, ensuring clean and dry output air. Together, they improve compressed air quality and ensure reliable system operation.

[0059] In this invention, the chassis 10 is provided with a third cooler 60 and a circulating oil pump 610; the input end of the circulating oil pump 610 is connected to the oil output end of the main unit 20; the output end of the circulating oil pump 610 is connected to the oil inlet of the third cooler 60; and the oil output end of the third cooler 60 is connected to the oil inlet of the main unit 20.

[0060] In this invention, the air input end of the first compression device 210 is connected to an air intake filter element 50.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A silent, high-efficiency oil-free screw air compressor, characterized in that: Includes a chassis (10), said chassis (10) including at least one silent side panel (110); The silent side panel (110) includes, from the outside to the inside, a first panel (111), a second panel (112), a third panel (113), and a fourth panel (114); The second plate (112) has a plurality of inclined plates (115) arranged longitudinally, and the inclined plates (115) are gradually inclined downward from the second plate (112) toward the first plate (111); The first plate (111) has several rows of first ventilation openings (116) arranged longitudinally, and each row of first ventilation openings (116) is respectively arranged between two adjacent inclined plates (115); A first mounting space (117) is provided between the second plate (112) and the third plate (113); a second mounting space (118) is provided between the third plate (113) and the fourth plate (114); The second plate (112) is provided with a first communication port (119) that communicates with the first mounting space (117) and the first ventilation port (116); The third plate (113) is provided with a second communication port (120) for connecting the first mounting space (117) and the second mounting space (118); The fourth plate (114) is provided with a third communication port (121) that communicates with the second mounting space (118) and the interior of the chassis (10).

2. The silent, high-efficiency oil-free screw air compressor according to claim 1, characterized in that: The first mounting space (117) and the second mounting space (118) have openings on their upper sides.

3. The silent, high-efficiency oil-free screw air compressor according to claim 1, characterized in that: The second connection port (120) and the third connection port (121) are longitudinally offset.

4. A silent, high-efficiency oil-free screw air compressor according to claim 1, characterized in that: The chassis (10) is equipped with a host (20), and the host (20) is connected to a first compression device (210) and a second compression device (220). The chassis (10) is provided with a first cooler (30) and a second cooler (40); The air output end of the first compression device (210) is connected to the air input end of the first cooler (30) by a first fitting (310); the air output end of the first cooler (30) is connected to the air input end of the second compression device (220) by a second fitting (320). The air output end of the second compression device (220) is connected to the air input end of the second cooler (40) via a third fitting (410), and the air output end of the second cooler (40) is connected to a fourth fitting (420).

5. A silent, high-efficiency oil-free screw air compressor according to claim 4, characterized in that: The second fitting (320) is equipped with a first gas-liquid separator (330).

6. A silent, high-efficiency oil-free screw air compressor according to claim 4, characterized in that: The fourth fitting (420) is equipped with a second gas-liquid separator (430).

7. A silent, high-efficiency oil-free screw air compressor according to claim 4, characterized in that: The chassis (10) is equipped with a third cooler (60) and a circulating oil pump (610); The input end of the circulating oil pump (610) is connected to the oil output end of the host (20); The output end of the circulating oil pump (610) is connected to the oil inlet of the third cooler (60); The oil outlet of the third cooler (60) is connected to the oil inlet of the main unit (20).

8. A silent, high-efficiency oil-free screw air compressor according to claim 4, characterized in that: The air inlet of the first compression device (210) is connected to an air inlet filter (50).

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