Movable air-cooled air compressor

Abstract

The utility model discloses a movable air-cooled air compressor, and belongs to the technical field of air compressors. An outer cover of the air compressor is provided with a plurality of shutter air inlet windows and further comprises at least one air guide channel arranged on the inner wall of the outer cover, an air inlet communicated with the air outlet side of one shutter air inlet window is machined in the air guide channel, and an air outlet is formed in the top of the air guide channel. According to the scheme, the air inlet structure of the air compressor is optimally designed, so that the noise of the air inlet structure can be reduced, the air inlet temperature can be reduced, and the cooling effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor technology field more specifically, relate to a mobile air -cooled air compressor. BACKGROUND

[0002] The existing mobile air compressor is generally driven by a driving machine directly driving a screw main machine, and the driving machine mainly adopts a diesel engine and a motor. The driving machine drives the rotating of the moving part of the main machine, causes the volume change of the main machine to produce high-pressure gas, and certain noise is produced in the above process. In addition, especially for the mobile air compressor of air cooling type, since the cooling fan is used for blowing and cooling inside, the noise produced during the operation of the whole unit is further increased. The excessive noise not only has adverse effects on the surrounding environment, but also causes great harm to the health of construction personnel. Therefore, some regions have formulated strict noise requirements for the access of air compressors, and even the unit needs to obtain relevant low-noise certification certificates.

[0003] How to reduce the intake noise of the mobile air-cooled air compressor has been one of the hot spots in the field of air compressors. However, for the mobile air-cooled air compressor, the internal air flow is large, so a large amount of air intake is required, and in order to achieve good cooling effect, the flow rate of the intake air has certain requirements, so the intake design of the air-cooled air compressor needs to consider many factors such as intake noise control, air volume and flow rate. The existing air-cooled air compressor opens a louver-shaped air inlet on the side plate of the cabinet, which can meet the requirements of air volume and air speed, but the noise is relatively large.

[0004] After searching, the application with Chinese patent number 202311779163.X discloses a noise reduction type compressor, which comprises a cabinet for installing a machine body, the cabinet is in a closed arrangement, an air duct for supplying air to a filter is opened on the cabinet, a gas guide sound insulation box connected with the air inlet end of the filter is arranged in the air duct, an air inlet sound insulation box connected with the inner cavity of the cabinet is communicated with the end of the gas guide sound insulation box away from the filter, and the inner walls of the gas guide sound insulation box and the air inlet sound insulation box are paved with sound-absorbing cotton. A pre-air inlet is opened on the cabinet door, and the pre-air inlet is opposite to the air inlet end of the air inlet sound insulation box. In the application, the airflow is absorbed by the sound-absorbing cotton during the flow process, so that the sound wave energy is consumed and converted, thereby achieving the purpose of reducing the sound noise. However, the application is not suitable for mobile air-cooled air compressors. UTILITY MODEL CONTENTS

[0005] In view of the technical problem that the noise of the air intake structure of the mobile air-cooled air compressor needs to be further optimized, the utility model provides a mobile air-cooled air compressor. The air intake structure of the air compressor is optimized and designed, so that the noise of the air intake structure is reduced, and the temperature of the air intake is reduced, thereby improving the cooling effect.

[0006] To achieve the above object, the utility model provides a technical scheme for:

[0007] The utility model discloses a mobile air -cooled air compressor, the side plate of the air compressor cover is provided with a plurality of louvered air inlet window, still include at least one setting in the wind channel of the inner wall of the cover, the wind channel is processed with the air outlet side of one of the louvered air inlet window's air inlet side communication on, and its top is equipped with the air outlet.

[0008] Further, the wind channel is distributed along the vertical direction, and the air inlet of the guide channel is arranged on the side close to the louvered air inlet window.

[0009] Further, the wind channel is a rectangular cavity, and the air outlet side close to the louvered air inlet window communicated therewith is arranged.

[0010] Further, the louvered air inlet window communicated with the wind channel is located at the lower part of the cover, and the air outlet of the wind channel is located at the upper part of the cover.

[0011] Further, the lateral opening of the wind channel is arranged close to the bottom.

[0012] Further, the louvered air inlet window communicated with the wind channel includes a plurality of second louvered flaps arranged in parallel and at intervals, the second louvered flap includes a third fold edge and a fourth fold edge connected on one side, the third fold edge and the fourth fold edge form an L-shaped corner, the third fold edge is the air inlet side and the cross-sectional length thereof is less than that of the fourth fold edge, and the sound-absorbing cotton is arranged on the inner side of the lower end of the second louvered flap.

[0013] Further, the remaining louvered air inlet window includes a plurality of first louvered flaps arranged in parallel and at intervals, the first louvered flap includes a first fold edge and a second fold edge connected on one side, the first fold edge and the second fold edge are symmetrically arranged and form an L-shaped corner, a recess for placing the sound-absorbing cotton is formed inwardly at the lower end of the first louvered flap, and the travel of air in the first louvered flap is greater than that in the second louvered flap.

[0014] Further, the plurality of louvered air inlet windows are distributed on one end of the cover close to the compression system in the longitudinal direction, the louvered air inlet window communicated with the wind channel is arranged in the middle part of the cover in the longitudinal direction, the cooling air exhaust structure is located at the other end of the cover away from the compression system in the longitudinal direction, and the top plate of the cover is provided with an air outlet corresponding to the cooling air exhaust structure.

[0015] Further, the cooling air exhaust structure includes a plurality of vertical plates and air exhaust guide plates, the plurality of vertical plates are distributed in parallel and at intervals, a plurality of air exhaust guide plates are arranged in parallel and at intervals between the adjacent two vertical plates, the flow guide angle of the air exhaust guide plate is obtuse and the opening faces upward.

[0016] Further, the outer side wall of the wind channel is attached with sound-absorbing cotton.

[0017] Compared with the prior art, the technical scheme has the beneficial effects that:

[0018] (1) The air inlet structure is optimized, specifically, the air guide channel connected with the louvered air inlet window is additionally arranged, so that the air inlet stroke is effectively prolonged, the air inlet temperature is reduced, and the dust amount of the air inlet is reduced to a certain extent. The air inlet mode is suitable for the mobile air-cooled air compressor, and is especially suitable for outdoor use.

[0019] (2) The structure of the air guide channel is further optimized and designed, the air outlet of the air guide channel is located at the upper part of the outer cover, the louvered air inlet window connected with the air guide channel is located at the lower part of the outer cover, and the air inlet of the air guide channel is arranged close to the bottom of the air guide channel, so that the stroke of the gas in the air guide channel is further prolonged, and the noise reduction effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic view of a louvered air inlet window in the mobile air-cooled air compressor of the embodiment of the utility model.

[0021] Figure 2 It is a three-dimensional schematic view of the overall appearance of the mobile air-cooled air compressor of the embodiment of the utility model.

[0022] Figure 3 It is a three-dimensional schematic view of the internal layout of the mobile air-cooled air compressor of the embodiment of the utility model.

[0023] Figure 4 It is a three-dimensional schematic view of another louvered air inlet window in the mobile air-cooled air compressor of the embodiment of the utility model.

[0024] Figure 5 It is a three-dimensional schematic view of the air exhaust structure in the mobile air-cooled air compressor of the embodiment of the utility model.

[0025] REFERENCE SIGNS:

[0026] 1, louvered air inlet window; 101, first louvered flap; 1011, first folded edge; 1012, second folded edge; 102, second louvered flap; 1021, third folded edge; 1022, fourth folded edge.

[0027] 2, air guide channel;

[0028] 3, cooling air exhaust structure; 301, vertical plate; 302, air exhaust guide plate;

[0029] 4, door plate;

[0030] 5, cooling system;

[0031] 6, compression system;

[0032] 7. drive system;

[0033] 8. electric control system;

[0034] 9. base;

[0035] 10. four-wheel traveling system;

[0036] 11. outer cover. DETAILED DESCRIPTION

[0037] For further understanding of the content of the present application, the present application is described in detail in conjunction with the drawings and examples.

[0038] The structure, proportion, size, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions of the implementation of the present application, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like in the present specification are only for the convenience of clear description, and are not used to limit the implementation range, the change or adjustment of the relative relationship without substantial change of technical content is also considered as the implementation scope of the present application.

[0039] Explanation of direction: refer to the view angle shown in Figure 2 The "moving direction of the base 9 under the driving of the traction mechanism" in the following examples is called "longitudinal direction", and the horizontal direction perpendicular to the longitudinal direction is called "transverse direction".

[0040] Explanation of upper or lower part: refer to the view angle shown in Figure 2 The "upper part or lower part of the outer cover" referred to in the following examples is relative to the center line of the outer cover in the height direction, and the direction from the top of the outer cover to the center line is called the upper part of the outer cover, and the direction from the bottom of the outer cover to the center line is called the lower part of the outer cover.

[0041] The conventional mobile air compressor generally includes a base 9, a drive system 7, a compression system 6, an electric control system 8, a cooling system 5, a cooling air exhaust mechanism 3 and an outer cover 11.

[0042] It should be noted that the compression system 6 includes an output mechanism for high-pressure gas after compression, and accordingly, the outer cover 11 is provided with a corresponding air outlet hole.

[0043] The internal arrangement of the mobile air compressor in the following examples refers to Figure 3The compression system 6, the drive machine system 7 and the cooling air exhaust mechanism 3 are sequentially arranged along the longitudinal direction of the outer cover in the base 9.

[0044] The base 9 is used for bearing various components of the air compressor, and the four-wheel traveling system 10 is arranged below the base 9. The traction mechanism drives the base 9 to move through the four-wheel traveling system 10, facilitating the air compressor to be towed to move.

[0045] The outer cover 11 includes four side plates and a top plate. The four side plates form a rectangular cavity, and the top plate is the upper end of the rectangular cavity. The base 9 is fixed to the lower end of the rectangular cavity, and various components of the air compressor are arranged inside the outer cover 11.

[0046] The drive machine system 7 includes a drive machine exhaust system, and the top plate of the outer cover 11 is provided with a corresponding exhaust hole. The drive machine system 7 drives the screw main machine of the compression system to rotate through a shaft coupling. In the following embodiment, the drive machine is taken as a diesel engine, which also includes a diesel engine cooling system. The design of the drive machine system 7 is a prior art, which will not be described here.

[0047] The application mentioned in the background art is not suitable for air-cooled compressors, and the specific reasons are as follows: the air guide sound insulation box and the air inlet sound insulation box are horizontally arranged in the application, and the air entering through the pre-air inlet needs to be decelerated twice through the air guide sound insulation box and the air inlet sound insulation box. In addition, the air guide sound insulation box and the air inlet sound insulation box are perpendicular to each other, and the speed of the airflow after deceleration is too small. In addition, the cabinet has fewer openings, and the overall air intake is relatively small.

[0048] For air-cooled air compressors, stable operation requires sufficient cooling to prevent high-temperature failure. Therefore, the air flow passage should not be excessively blocked to ensure that the air entering the air compressor has a certain flow rate. In addition, the inner wall of the closed area of the air compressor outer cover 11 is generally attached with sound-absorbing cotton to isolate noise transmission, which can isolate most of the noise inside the outer cover. The louvered air inlet window is one of the main areas through which noise penetrates from the inside of the outer cover. Therefore, the louvered air inlet window should not be too large, otherwise the noise inside the outer cover will penetrate a large amount of noise to the outside, causing the air compressor to exceed the noise limit.

[0049] For mobile air-cooled air compressors used outdoors, the working environment is relatively harsh, especially the relatively large amount of dust. If a filter screen is used for air intake, the filter screen will need to be replaced too frequently, so the air intake structure should not be a combination of a louvered air inlet window and a filter screen.

[0050] Based on the above reasons, the embodiment provides a mobile air-cooled air compressor, which refers to Figure 1 , Figure 2As shown, the side plate of the air compressor housing 11 is provided with a plurality of louvered air inlet windows 1, and further comprises at least one air guide channel 2 located on the inner wall of the housing 11, and the air guide channel 2 is provided with an air inlet opening communicated with the air outlet side of one of the louvered air inlet windows 1, and the top of the air guide channel 2 is provided with an air outlet opening.

[0051] Figure 1 In the embodiment, the flow direction of the cooling air is as follows: the air flows into the air guide channel 2 from the air inlet side of the louvered air inlet window 1, and then flows out from the air outlet side of the louvered air inlet window 1 into the inner wall of the air guide channel 2, and then flows upward along the inner wall of the air guide channel 2 and flows out from the upper end opening of the air guide channel 2 into the interior of the housing. On the one hand, by prolonging the movement path of the air flowing in through this place and limiting the upward movement of the air, the flow rate of the gas is reduced, thereby reducing the noise. On the other hand, the temperature environment inside the machine body is also fully considered. The air temperature at the lower part of the housing is relatively high, and by increasing the height of the cooling gas entering the interior of the housing, the initial temperature of the cooling gas is prevented from rising. In addition, by flowing upward of the cooling gas, the dust in the gas falls due to excessive resistance, which can reduce the dust content of the cooling gas.

[0052] Specifically, the air guide channel 2 is distributed in the vertical direction, and the bottom end of the air guide channel 2 is a blind end, and the air inlet opening of the air guide channel 2 is arranged on the side close to the louvered air inlet window 1.

[0053] In the embodiment, the air guide channel 2 is distributed in the vertical direction, and the height of the cooling gas entering the interior of the housing is as high as possible, thereby further preventing the initial temperature of the cooling gas from rising.

[0054] Considering the space requirement inside the machine unit, the air guide channel 2 is a rectangular cavity, and is arranged close to the air outlet side of the louvered air inlet window 1 communicated therewith, thereby reducing the thickness of the air guide channel 2 as a whole, so as to reduce the adverse effect on the space arrangement inside the machine unit.

[0055] In order to further reduce the noise of the gas, the inner wall of the air guide channel 2 is attached with sound-absorbing cotton.

[0056] Specifically, the air outlet opening of the air guide channel 2 is located at the upper part of the housing 11. By increasing the height of the air outlet opening of the air guide channel 2, the movement path of the air in the air guide channel 2 is further prolonged, and the height of the cooling gas entering the interior of the housing is further increased, thereby reducing the temperature of the cooling gas entering the interior of the machine body.

[0057] More specifically, the louvered air inlet window 1 communicated with the air guide channel 2 is located at the lower part of the housing 11, and the lateral opening of the air guide channel 2 is arranged close to the lower end thereof, thereby further prolonging the movement path of the air in the air guide channel 2.

[0058] As the preferred embodiment of the louvered air inlet window 1, the louvered air inlet window 1 in communication with the air guide channel 2 comprises a plurality of second louvered flaps 102 arranged in parallel and spaced apart, the second louvered flaps 102 comprising a third fold edge 1021 and a fourth fold edge 1022 connected on one side, the third fold edge 1021 and the fourth fold edge 1022 forming an L-shaped corner, the third fold edge 1021 being the air inlet side and having a cross-sectional length smaller than that of the fourth fold edge 1022, and the sound-absorbing cotton being arranged on the inner side of the lower end of the second louvered flap 102.

[0059] In order to reduce the thickness of the louvered air inlet window 1 along the longitudinal direction of the outer cover, the fourth fold edge 1022 is formed by stamping and bending on the side plate of the outer cover 11, and the third fold edge 1021 is formed vertically between the adjacent stamping and bending intervals in the side plate of the outer cover 11, thereby reducing the thickness of the second louvered flap 102 along the longitudinal direction of the outer cover, and effectively reducing the sum of the thicknesses of the louvered air inlet window 1 and the air guide channel 2 at this position, so as to reduce the adverse effect on the internal layout space of the unit. In addition, the air entering through the second louvered flap 102 will subsequently pass through the air guide channel 2, and the sound-absorbing and speed-reducing effect of the air guide channel 2 is good, so the movement path of the air in the second louvered flap 102 can be appropriately reduced, that is, the sum of the cross-sectional lengths of the third fold edge 1021 and the fourth fold edge 1022 can be appropriately reduced.

[0060] As an extended solution, the L-shaped corner formed by the third fold edge 1021 and the fourth fold edge 1022 is preferably an obtuse angle. Specifically, the third fold edge 1021 is arranged vertically, and the fourth fold edge 1022 is arranged obliquely upward. Not only can it guide the flow to form a flow direction obliquely upward, but also can make the rainwater fall along the fourth fold edge 1022 in rainy weather, reduce the rainwater entering the air guide channel 2, and help to delay the service life of the sound-absorbing cotton in the second louvered flap 102.

[0061] Among them, the sound-absorbing cotton is arranged on the inner side of the lower end of the second louvered flap 102, which not only protects the sound-absorbing cotton from rain and wind and sunlight to ensure the service life and effect, but also is more beautiful.

[0062] Further preferably, with reference to the above embodiments Figure 4 As shown in the figure, the remaining louvered air inlet window 1 comprises a plurality of first louvered flaps 101 arranged in parallel, the first louvered flaps 101 comprising a first fold edge 1011 and a second fold edge 1012 connected on one side, the first fold edge 1011 and the second fold edge 1012 forming an L-shaped corner, specifically, the first fold edge 1011 being the air inlet side, the second fold edge 1012 being the air outlet side, and the lower end of the first louvered flap 101 being inwardly formed into a recess for placing sound-absorbing cotton; the travel of air in the first louvered flap 101 is greater than that in the second louvered flap 102.

[0063] Specifically, the first louvered flaps 101 and the other side of the second louvered flaps 1012 are provided with an extension edge, which is inclined towards the side connected to the other side, thereby reducing the entry of foreign matter into the sound-absorbing cotton.

[0064] It should be understood that in some embodiments, the louvered air inlet windows 1 can all adopt the first louvered flaps 101, thereby achieving better noise reduction effect.

[0065] The plurality of first louvered flaps 101 are arranged in the vertical direction and mounted on the vertical column of the outer cover 11. As an extension, the first louvered flaps 101 and the second louvered flaps 1012 are the same in structure and symmetrically arranged along the vertical plane, thereby facilitating processing and installation.

[0066] Regarding the further preferred arrangement of the louvered air inlet windows 1, the louvered air inlet windows 1 connected to the single air guide channel 2 are arranged at the middle part of the outer cover 11 in the longitudinal direction, and the remaining louvered air inlet windows 1 are distributed at one end of the outer cover 11 close to the compression system 6 in the longitudinal direction.

[0067] In the existing air-cooled air compressor unit, the compression system 6, the drive system 7, the cooling system 5, and the cooling air exhaust structure 3 are usually arranged in sequence on the base in the longitudinal direction.

[0068] The louvered air inlet windows 1 close to the compression system 6 are relatively far from the drive system 7 and the cooling system 5, thereby being less affected by noise. The louvered air inlet windows 1 in the middle part of the machine body are close to the drive system 7 and the cooling system 5, and the air guide channel 2 is arranged at the air outlet of the louvered air inlet window 1 and is in communication with the louvered air inlet window 1, thereby reducing the penetration of noise from this place, and through the arrangement of the air flow in the air guide channel 2, the intake air temperature can be effectively reduced.

[0069] As an extension, the louvered air inlet window 1 in communication with the air guide channel 2 is arranged on the door panel 4 of the outer cover 11.

[0070] The existing mobile air-cooled compressor is a rectangular box structure, and the longitudinal dimension is greater than the transverse dimension. Referring to Figure 2 The door panel is arranged on the front side panel or the rear side panel of the outer cover and is located in the longitudinal middle part of the machine body, thereby facilitating maintenance. The louvered air inlet window 1 in communication with the air guide channel 2 is arranged on the door panel 4 of the outer cover 11, thereby better coordinating with the existing layout.

[0071] The cooling air exhaust structure 3 is located at the other end of the outer cover 11 away from the compression system 6 in the longitudinal direction, and the top panel of the outer cover 11 is provided with an air outlet corresponding to the cooling air exhaust structure 3.

[0072] The air outlet is arranged on the top plate of the outer cover 11 and is communicated with the cooling air exhaust structure 3, the side plate of the outer cover 11 at the end is not arranged with an opening, and the gas is guided to flow upwards and be discharged, so that the arrangement is helpful to better isolate the noise.

[0073] In the preferred embodiment of the cooling air exhaust structure 3, the cooling air exhaust structure 3 comprises a plurality of vertical plates 301 and air exhaust guide plates 302, the plurality of vertical plates 301 are arranged in parallel and at intervals along the transverse direction of the machine body, a plurality of air exhaust guide plates 302 are arranged in parallel and at intervals between the adjacent two vertical plates 301, the air exhaust guide plate 302 is arranged with an obtuse flow guide angle and an upward opening. The flow guide angle of the air exhaust guide plate 302 is preferably 135°, the gas flows horizontally into the air exhaust guide plate 302, is guided to flow upwards by the air exhaust guide plate 302, and is then discharged through the air outlet of the top plate of the outer cover 11. The vertical plate 301 plays a fixing and supporting role, the layout and interval of the adjacent two vertical plates 301 are arranged according to the actual situation of the unit, and the interval is as large as possible to facilitate air exhaust.

[0074] In order to further reduce the noise of the compressor unit, the outer wall of the air guide channel 2 is attached with sound-absorbing cotton for reducing the running noise in the unit.

[0075] In the above embodiment, the air guide channel 2 is additionally arranged, the air flows out of the louvered air inlet window 1, enters the air guide channel 2, is guided to flow upwards, the sound-absorbing cotton is arranged to reduce the air speed, the height of the air entering the inner part of the outer cover is increased, and the temperature of the cooling air inlet is reduced. In addition, the sound-absorbing cotton also has the effect of reducing the dust content of the air inlet.

[0076] The above description of the utility model and its embodiments is illustrative and not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the utility model, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above description, without departing from the creative purpose of the utility model, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the utility model.

Claims

1. A mobile air-cooled air compressor, wherein the side panel of the compressor casing (11) is provided with multiple louvered air inlets (1), characterized in that, It also includes at least one air guide channel (2) disposed on the inner wall of the outer cover (11), the air guide channel (2) having an air inlet connected to the air outlet side of one of the louvered air inlets (1), and an air outlet at its top.

2. The mobile air-cooled air compressor according to claim 1, characterized in that, The air guide channel (2) is distributed in a vertical direction and its bottom end is a blind end. The air inlet of the air guide channel (2) is located on the side close to the louvered air inlet window (1). And / or the inner wall of the air guide channel (2) is lined with sound-absorbing cotton.

3. The mobile air-cooled air compressor according to claim 2, characterized in that, The air guide channel (2) is a rectangular cavity, and it is set close to the air outlet side of the louvered air inlet window (1) connected to it.

4. The mobile air-cooled air compressor according to claim 3, characterized in that, The air outlet of the air guide channel (2) is located on the upper part of the outer cover (11).

5. The mobile air-cooled air compressor according to claim 4, characterized in that, The louvered air inlet window (1) connected to the air guide channel (2) is located at the lower part of the outer cover (11), and the air inlet of the air guide channel (2) is located near its bottom.

6. The mobile air-cooled air compressor according to any one of claims 1-5, characterized in that, The louvered air inlet window (1) connected to the air guide channel (2) includes multiple parallel and spaced second louvered flaps (102). The second louvered flap (102) includes a third fold (1021) and a fourth fold (1022) connected on one side. The third fold (1021) and the fourth fold (1022) form an L-shaped fold. The third fold (1021) is the air inlet side and its cross-sectional length is smaller than that of the fourth fold (1022). Sound-absorbing cotton is placed on the inner side of the lower end of the second louvered flap (102).

7. The mobile air-cooled air compressor according to claim 6, characterized in that, The remaining louvered air inlet window (1) includes a plurality of parallel and spaced first louvered flaps (101). The first louvered flap (101) includes a first folded edge (1011) and a second folded edge (1012) connected on one side. The first folded edge (1011) and the second folded edge (1012) form an L-shaped fold. The lower end of the first louvered flap (101) forms a recess for placing sound-absorbing cotton. The air travels a greater distance in the first louvered flap (101) than in the second louvered flap (102).

8. The mobile air-cooled air compressor according to any one of claims 1-5, characterized in that, The louvered air inlet window (1) connected to the air guide channel (2) is located in the middle of the longitudinal direction of the outer cover (11); the remaining louvered air inlets (1) are distributed at one end of the longitudinal direction of the outer cover (11) close to the compression system (6), the cooling air exhaust structure (3) is located at the other end of the longitudinal direction of the outer cover (11) away from the compression system (6), and the top plate of the outer cover (11) is provided with an exhaust port corresponding to the cooling air exhaust structure (3).

9. The mobile air-cooled air compressor according to claim 8, characterized in that, The cooling air exhaust structure (3) includes multiple vertical plates (301) and exhaust guide plates (302). The multiple vertical plates (301) are distributed in parallel and spaced apart. Multiple exhaust guide plates (302) are provided between two adjacent vertical plates (301) and are distributed in parallel and spaced apart. The guide angle of the exhaust guide plate (302) is obtuse and the opening faces upward.

10. The mobile air-cooled air compressor according to any one of claims 1-5, characterized in that, The outer wall of the air guide channel (2) is lined with sound-absorbing cotton.

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