CN111379703B

CN111379703B - Air compressor unit

Info

Publication number: CN111379703B
Application number: CN202010177976.1A
Authority: CN
Inventors: 倪恺; 侯野
Original assignee: Shanghai Ingersoll Rand Compressor Ltd
Current assignee: Shanghai Ingersoll Rand Compressor Ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2022-07-01
Anticipated expiration: 2040-03-13
Also published as: CN111379703A

Abstract

The present disclosure provides an air compressor package. The air compressor unit includes: compressor and gas transmission subassembly. The compressor includes: casing, runner assembly, gas seal spare and oil seal spare. The casing is provided with a compression cavity, a rotating shaft cavity communicated with the compression cavity and an air delivery hole. The rotating assembly comprises a rotor arranged in the compression cavity and a rotating shaft connected with the end part of the rotor, and the rotating shaft is arranged in the rotating shaft cavity. The gas seal piece and the oil seal piece are sleeved on the rotating shaft, the oil seal piece is far away from the compression cavity relative to the gas seal piece, and the gas transmission hole is communicated with the rotating shaft cavity between the gas seal piece and the oil seal piece. The gas transmission assembly is communicated with the gas transmission hole and used for transmitting gas to the gas transmission hole when the compressor is unloaded. When the compressor is unloaded, carry the gas to the gas transmission hole through the gas transmission subassembly to form separation gas between gas seal spare and oil seal spare, and then block lubricating oil and get into the compression intracavity of compressor, avoid the compressor to appear lacking oil problem, guarantee the stable work of air compressor unit.

Description

Air compressor unit

Technical Field

The present disclosure relates to the field of air compressor units, and more particularly, to an air compressor unit.

Background

The air compressor unit is a unit capable of compressing low-pressure air into high-pressure air, and further uses the high-pressure air as a power source to be applied to different fields in industry and life. For example, the air compressor unit includes an oil-free air compressor, and the oil-free air compressor ensures normal operation thereof by supplying lubricating oil to components such as bearings provided outside the compression chamber. When the oilless air compressor works, lubricating oil of parts such as bearings and the like needs to be prevented from entering a compression cavity through an oil seal piece, so that the problem of oil shortage of the oilless air compressor is avoided.

Disclosure of Invention

The present disclosure provides an improved air compressor package.

One aspect of the present disclosure provides an air compressor package, comprising: a compressor and a gas delivery assembly;

the compressor includes: the shell is provided with a compression cavity, a rotating shaft cavity communicated with the compression cavity and an air delivery hole; and

the rotating assembly comprises a rotor arranged in the compression cavity and a rotating shaft connected with the end part of the rotor, and the rotating shaft is arranged in the rotating shaft cavity;

the air seal piece is sleeved on the rotating shaft; and

the oil seal piece is sleeved on the rotating shaft, the oil seal piece is far away from the compression cavity relative to the air seal piece, and the air delivery hole is communicated with the rotating shaft cavity between the air seal piece and the oil seal piece;

the gas transmission assembly is communicated with the gas transmission hole and used for transmitting gas to the gas transmission hole when the compressor is unloaded.

Optionally, the gas delivery assembly comprises: the gas transmission pipeline is communicated with the gas transmission hole.

Optionally, the air compressor package further comprises: the control module is connected with the gas transmission switch which is connected with a gas inlet of the compressor;

the gas delivery assembly further comprises: the power switch is connected between the power supply and the air source;

the control module is configured to: and controlling the gas transmission switch to be closed, and controlling the power switch to be electrified.

Optionally, the air compressor unit further comprises an electromagnetic valve connected with the air delivery switch and the power switch, the control module controls the electromagnetic valve to switch on and off the air delivery switch, and the control module controls the electromagnetic valve to switch on and off the power switch; and/or the presence of a gas in the gas,

the air source comprises a fan; and/or the presence of a gas in the gas,

the gas transmission switch comprises a gas valve; and/or the presence of a gas in the gas,

the power switch includes a relay.

Optionally, the control module is further configured to: controlling the gas transmission switch to be turned on and simultaneously controlling the power switch to be powered off; and/or the presence of a gas in the atmosphere,

the control module is further configured to: and controlling the power switch to be powered on and controlling the power supply to be powered off.

Optionally, the number of the gas transmission holes is multiple, and the gas transmission pipelines comprise a first gas transmission pipeline, a plurality of second gas transmission pipelines and a branch pipeline;

the branch pipeline comprises an air inlet and a plurality of air outlets, the air inlet of the branch pipeline is connected with the air source through the first air conveying pipeline, and the air outlet of the branch pipeline is connected with the air conveying hole through the second air conveying pipeline.

Optionally, the shunt line is provided with a leakage orifice.

Optionally, the shunt line comprises a first end and a second end opposite to each other, the first end is higher than the second end, and the leakage hole is formed in the bottom of the second end.

Optionally, the gas transmission assembly further comprises a gas leakage switch with an adjustable opening degree, and the gas leakage switch is arranged on the gas leakage hole.

Optionally, an included angle between the axis of the gas transmission hole and the axis of the rotor ranges from 1 ° to 90 °.

The air compressor unit provided by the disclosure at least has the following beneficial effects:

this air compressor unit, when the compressor uninstallation, through gas transmission subassembly to gas transmission hole gas transmission to form the separation gas between gas seal spare and oil seal spare, and then block lubricating oil and get into the compression intracavity of compressor, avoid the compressor to appear lacking oil problem, guarantee the stable work of air compressor unit.

Drawings

FIG. 1 is a schematic diagram illustrating gas flow between an oil seal and an air seal when a compressor is loaded in accordance with an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating gas flow between an oil seal and an air seal when the compressor is unloaded in accordance with an exemplary embodiment;

FIG. 3 illustrates a partial schematic structural view of an air compressor package according to an exemplary embodiment of the present disclosure;

FIG. 4 is a schematic illustration of gas flow between an oil seal and a gas seal when the compressor is unloaded according to an exemplary embodiment of the present disclosure;

FIG. 5 is a linked block diagram illustrating a partial configuration of an air compressor package according to an exemplary embodiment of the present disclosure;

FIG. 6 illustrates a partial schematic structural view of a gas delivery assembly according to an exemplary embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprises" or "comprising" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

As used in this disclosure and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

In some embodiments, an air compressor package includes: a compressor. The compressor comprises a shell, a rotating assembly, an air seal piece and an oil seal piece. Wherein, the casing is provided with a compression cavity, a rotating shaft cavity communicated with the compression cavity and an air delivery hole. The rotating assembly comprises a rotor arranged in the compression cavity, a rotating shaft connected with the end part of the rotor and arranged in the rotating shaft cavity, and a bearing sleeved on the rotating shaft. The air seal piece and the oil seal piece are sleeved on the rotating shaft, the oil seal piece is far away from the compression cavity relative to the air seal piece, the oil seal piece is close to the bearing relative to the air seal piece, and the oil seal piece is used for preventing lubricating oil on the bearing from entering the compression cavity. The gas transmission hole is communicated with the rotating shaft cavity between the gas seal piece and the oil seal piece.

Fig. 1 is a schematic diagram illustrating gas flow between an oil seal 110 and an air seal 120 when a compressor is loaded according to an exemplary embodiment. In fig. 1, the arrows indicate the gas flow direction, and the thicker arrows indicate a larger gas flow rate than the thinner arrows. Referring to fig. 1, when the compressor is loaded, due to the high air pressure in the compression chamber, air leaks from between the gas seal 120 and the rotating assembly 130, and a portion of the air is discharged to the outside through the air delivery hole 140 between the gas seal 120 and the oil seal 110, and another portion of the air flows to the oil seal 110 and drives the lubricant in the oil seal 110 back to the bearing, which can prevent the lubricant from leaking into the compression chamber.

Fig. 2 is a schematic diagram illustrating gas flow between the oil seal 110 and the gas seal 120 when the compressor is unloaded according to an exemplary embodiment. In fig. 2, the arrows indicate the gas flow direction, and the thick arrows indicate a larger gas flow rate than the thin arrows. Referring to fig. 2, when the compressor is unloaded, the pressure in the compression cavity becomes negative pressure, which is easy to suck gas, the lubricating oil on the oil seal 110 is easy to suck into the compression cavity, and then the gas in the compression cavity is discharged from the exhaust port of the compressor, which easily causes oil shortage of components such as bearings, and affects the normal operation of the compressor.

In order to solve the above problem, the present disclosure provides an air compressor set, including: compressor and gas transmission subassembly. Wherein, the compressor includes casing, runner assembly, gas seal spare and oil seal spare. The casing is provided with a compression cavity, a rotating shaft cavity communicated with the compression cavity and an air delivery hole. The rotating assembly comprises a rotor arranged in the compression cavity and a rotating shaft connected with the end part of the rotor, and the rotating shaft is arranged in the rotating shaft cavity. The gas seal piece and the oil seal piece are sleeved on the rotating shaft, the oil seal piece is far away from the compression cavity relative to the gas seal piece, and the gas transmission hole is communicated with the rotating shaft cavity between the gas seal piece and the oil seal piece. The gas transmission assembly is communicated with the gas transmission hole and used for transmitting gas to the gas transmission hole when the compressor is unloaded.

The utility model provides an air compressor unit, when the compressor uninstallation, through gas transmission subassembly to gas transmission hole gas transmission to form the separation gas between gas seal spare and oil seal spare, and then block lubricating oil and get into the compression intracavity of compressor, avoid the compressor to appear lacking oil problem, guarantee air compressor unit steady operation.

In order to more clearly understand the air compressor set provided by the present disclosure, the air compressor is described in detail below with reference to fig. 3 to 6:

FIG. 3 illustrates a partial schematic diagram of an air compressor package 200 according to an exemplary embodiment of the present disclosure. Referring to fig. 3, the air compressor package 200 includes: compressor 300 and gas transmission assembly 400.

The compressor 300 includes a casing 310, a rotating assembly 320, a gas seal 330, and an oil seal 340. The casing 310 is provided with a compression chamber 311, and a rotation shaft chamber 312 and a gas transmission hole 313 which are communicated with the compression chamber 311. The rotating assembly 320 includes a rotor 321 disposed in the compression chamber 311, and a rotating shaft 322 connected to an end of the rotor 321, and the rotating shaft 322 is disposed in the rotating shaft chamber 312. Illustratively, two rotating shafts 322 are oppositely arranged at two ends of the rotor 321.

The air sealing member 330 is sleeved on the rotating shaft 322 and is used for sealing the air in the compression cavity 311. The oil seal 340 is sleeved on the rotating shaft 322, the oil seal 340 is far away from the compression cavity 311 relative to the air seal 330, and the air delivery hole 313 is communicated with the rotating shaft cavity 312 between the air seal 330 and the oil seal 340. The rotating shaft 322 far from the compression cavity 311 relative to the oil seal 340 is provided with a bearing and a gear (not shown) coated with lubricating oil, and the oil seal 340 is used for preventing the lubricating oil on the bearing and the gear from leaking to the gas seal 330 and even leaking into the compression cavity 311. It should be noted that, when the air pressure is higher, the air may leak from the compression cavity 311 through the air seal 330, the lubricating oil may also leak from the oil seal 340 to the compression cavity 311, and the air seal 330 and the oil seal 340 cannot achieve complete sealing. Illustratively, the gas seal 330 and the oil seal 340 are metal brackets sleeved on the rotating shaft 322.

Gas transfer assembly 400 is in communication with gas transfer port 313 for transferring gas to gas transfer port 313 when compressor 300 is unloaded.

FIG. 4 illustrates a schematic diagram of gas flow between the oil seal 340 and the gas seal 330 when the compressor 300 is unloaded according to an exemplary embodiment of the present disclosure. In fig. 4, the arrows indicate the gas flow direction, and the thicker arrows indicate a larger gas flow rate than the thinner arrows. Referring to fig. 4, a portion of the gas supplied to the gas transfer hole 313 by the gas transfer assembly 400 flows toward the oil seal 340 in a direction away from the gas seal 330 to drive the lubricant back to the bearing, and another portion of the gas flows toward the gas seal 330 in a direction away from the oil seal 340 to be supplied into the compression cavity 311. This allows the gas to be blocked between the gas seal 330 and the oil seal 340, thereby avoiding oil leakage from the oil seal 340 to the compression cavity 311 due to negative pressure suction in the compression cavity 311, further avoiding the problem of oil shortage in the compressor 300, and ensuring stable operation of the air compressor assembly 200.

In some embodiments, the included angle between the axis of the air delivery hole 313 and the axis of the rotor 321 ranges from 1 ° to 90 °, for example, may be 1 °, 10 °, 20 °, 30 °, 40 °, 50 °, 60 °, 70 °, 80 °, 90 °, and the like. The angle between the axis of the gas transmission hole 313 and the axis of the rotor 321 is not specifically limited in the present disclosure, but needs to be effectively blocked between the gas seal 330 and the oil seal 340.

In some embodiments, with continued reference to fig. 3, gas delivery assembly 400 includes: a gas source 410, and a gas line 420 connected to the gas source 410, the gas line 420 communicating with the gas delivery orifice 313. The control gas source 410 supplies gas to the gas delivery hole 313 of the compressor 300 through the gas line 420 so that the gas is blocked between the gas seal 330 and the oil seal 340. Illustratively, the air source 410 includes a fan or blower.

FIG. 5 is a block diagram illustrating the connection of a partial structure of an air compressor package 200 according to an exemplary embodiment of the present disclosure. In fig. 5, the thin dotted lines between the gas source 410 and the compressor 300, and between the gas delivery switch 700 and the compressor 300, indicate lines for delivering gas. The dashed bold dotted lines between the control module 500 and the solenoid valve 900, and between the solenoid valve 900 and the power switch 430 and gas delivery switch 700 represent signal lines.

Referring to fig. 5, the air compressor package 200 further includes: the compressor comprises a control module 500, a power supply 600 and a gas transmission switch 700, wherein the power supply 600 is used as a power source of the compressor 300, the control module 500 is connected with the gas transmission switch 700, and the gas transmission switch 700 is connected with a gas inlet of the compressor 300. Illustratively, a motor 800 is connected between the power supply 600 and the compressor 300, the power supply 600 supplies power to the motor 800, and the motor 800 supplies power to the compressor 300. The control module 500 controls the gas transmission switch 700 to be turned on to input gas to the compressor 300 to load the compressor 300, and the control module 500 controls the gas transmission switch 700 to be turned off to stop inputting gas to the compressor 300 to unload the compressor 300. If the power supply 600 is turned off, the compressor 300 stops operating. Illustratively, the gas delivery switch 700 includes a gas valve. Illustratively, the control module 500 includes a controller.

With continued reference to fig. 5, gas delivery assembly 400 further includes: and a power switch 430 connected between the power supply 600 and the gas source 410. The power switch 430 is powered on, so that the power supply 600 supplies power to the gas source 410, the gas source 410 outputs gas when working, the power switch 430 is powered off, the power supply stops supplying power to the gas source 410, and the gas source 410 stops working. Illustratively, the power switch 430 includes a relay.

The following details how the control module 500 controls the compressor 300 and the gas delivery assembly 400:

in some embodiments, the control module 500 is configured to: the gas delivery switch 700 is controlled to be closed, and the power switch 430 is controlled to be powered on. That is, the control module 500 controls the gas transmission switch 700 to be turned off, so that the compressor 300 is unloaded, and at the same time, the control module 500 controls the power switch 430 to be turned on, so that the gas source 410 transmits gas to the gas transmission hole 313 through the gas transmission line 420, which causes the gas to form a barrier between the gas seal 330 and the oil seal 340, and avoids oil leakage from the oil seal 340 to the compression cavity 311 due to negative pressure in the compression cavity 311 caused by the unloading of the compressor 300.

In other embodiments, the control module 500 is further configured to: the gas transmission switch 700 is controlled to be turned on, and the power switch 430 is controlled to be powered off. That is, the control module 500 controls the gas delivery switch 700 to be turned on, the compressor 300 is loaded, and at the same time, the control module 500 controls the power switch 430 to be turned off, and the gas source 410 stops delivering gas to the gas delivery hole 313. When the compressor 300 is loaded, the air pressure in the compression cavity 311 is high, and the air is leaked outwards through the air seal 330, so that the lubricating oil is driven to return to the bearing, and the problem of oil leakage from the oil seal 340 to the compression cavity 311 does not occur at the moment.

In other embodiments, the control module 500 is further configured to: the power switch 430 is controlled to be powered on while the power supply 600 is controlled to be powered off. That is, when the air pressure in the compression chamber 311 of the compressor 300 is stabilized, although the power switch 430 is turned on, the power supply 600 is turned off and cannot supply power to the air source 410, which stops the operation of the air source 410. At this time, the problem of oil leakage from the oil seal 340 into the compression chamber 311 does not occur.

With continued reference to fig. 5, the air compressor package 200 further includes a solenoid valve 900 connected to the air delivery switch 700 and the power switch 430, the control module 500 turns on/off the air delivery switch 700 by controlling the solenoid valve 900, and the control module 500 turns on/off the power switch 430 by controlling the solenoid valve 900. In some embodiments, the control module 500 controls the solenoid valve 900 to send a first signal to the gas delivery switch 700 to control the gas delivery switch 700 to be turned on or off, and the control module 500 controls the solenoid valve 900 to send a second signal to the power switch 430 to control the power switch 430 to be turned on or off. The control mode is simple, and cost saving is facilitated.

Fig. 6 illustrates a partial schematic structural view of a gas delivery assembly 400 according to an exemplary embodiment of the present disclosure. Referring to FIGS. 3 and 6 in combination, the number of gas transfer ports 313 is plural, and the gas line 420 includes a first gas line 421, a plurality of second gas lines 422, and a branch line 423. The branch pipeline 423 comprises an air inlet and a plurality of air outlets, the air inlet of the branch pipeline 423 is connected with the air source 410 through a first air pipeline 421, and the air outlet of the branch pipeline 423 is connected with the air delivery hole 313 through a second air pipeline 422. In some embodiments, the compressor 300 includes a plurality of rotors 321, two ends of each rotor 321 are opposite to each other to form a rotating shaft 322, each rotating shaft 322 is provided with an air seal 330 and an oil seal 340, and correspondingly, the rotating shaft cavity 312 between the air seal 330 and the oil seal 340 is connected to at least one air delivery hole 313. The gas source 410 inputs gas to the shunt line 423 via the first gas line 421 and to the plurality of gas delivery orifices 313 via the shunt line 423 via the second plurality of gas lines 422. As such, not only is the structure of the gas line 420 simplified, but the gas source 410 is also facilitated to output gas through the gas line 420 to the plurality of gas delivery holes 313. Illustratively, the shunt line 423 includes a manifold.

In some embodiments, with continued reference to FIG. 6, shunt line 423 is provided with leakage orifice 424. In some embodiments, the gas supplied from the gas source 410 to the gas transmission holes 313 is a high pressure gas, which inevitably generates liquid water, and the liquid water can leak out through the leakage holes 424, so as to avoid introducing the liquid water into the compressor 300 and affecting its normal operation. In addition, the leakage of the gas through the leakage hole 424 can adjust the pressure of the gas input into the gas transmission hole 313, so that the gas can be effectively blocked between the gas seal 330 and the oil seal 340. And, when the gas delivery assembly 400 stops working, the gas delivery hole 313 is connected to the external atmosphere through the leakage hole 424, so as to facilitate the air discharge of the compression cavity 311 to the leakage hole 424 through the gas delivery hole 313. In addition, when the air delivery assembly 400 fails, the air delivery hole 313 is connected to the outside atmosphere through the air leakage hole 424, and when the pressure in the compression cavity 311 is negative, air can be sucked through the air leakage hole 424, which is beneficial to reducing the leakage of the lubricating oil into the compression cavity 311 compared with the case that the air leakage hole 424 is not arranged.

In some embodiments, with continued reference to fig. 6, gas delivery assembly 400 further includes a blow-by switch 440 with an adjustable opening, blow-by switch 440 disposed in blow-by hole 424. In some embodiments, the opening of the air leakage switch 440 is adjusted to adjust the air pressure of the gas in the gas line 420 to a desired air pressure, so that the gas input to the gas transmission hole 313 is effectively blocked between the gas seal 330 and the oil seal 340. Illustratively, the blow-by gas switch 440 comprises a ball valve.

In some embodiments, shunt line 423 includes opposing first and second ends, the first end being higher than the second end, and weep hole 424 is provided at the bottom of the second end to facilitate draining of liquid water.

The above embodiments of the present disclosure may be complementary to each other without conflict.

The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims

1. An air compressor package, characterized in that the air compressor package comprises: a compressor (300) and a gas transmission assembly (400);

the compressor (300) includes: the shell (310) is provided with a compression cavity (311), a rotating shaft cavity (312) communicated with the compression cavity (311) and an air delivery hole (313); and

the rotating assembly (320) comprises a rotor (321) arranged in the compression cavity (311) and a rotating shaft (322) connected with the end part of the rotor (321), and the rotating shaft (322) is arranged in the rotating shaft cavity (312);

the air seal piece (330) is sleeved on the rotating shaft (322); and

the oil seal piece (340) is sleeved on the rotating shaft (322), the oil seal piece (340) is far away from the compression cavity (311) relative to the air seal piece (330), and the air delivery hole (313) is communicated with the rotating shaft cavity (312) between the air seal piece (330) and the oil seal piece (340);

the gas transmission assembly (400) is communicated with the gas transmission hole (313) and is used for transmitting gas to the gas transmission hole (313) when the compressor (300) is unloaded; the number of the air transmission holes (313) is multiple;

the gas delivery assembly (400) comprises: a gas source (410), and a gas line (420) connected to the gas source (410), the gas line (420) including a first gas line (421), a plurality of second gas lines (422), and a shunt line (423); the branch pipeline (423) comprises an air inlet and a plurality of air outlets, the air inlet of the branch pipeline (423) is connected with the air source (410) through the first air pipeline (421), and the air outlet of the branch pipeline (423) is connected with the air delivery hole (313) through the second air pipeline (422);

the branch pipeline (423) is provided with an air leakage hole (424);

the branch pipeline (423) comprises a first end and a second end which are opposite, the first end is higher than the second end, and the air leakage hole (424) is arranged at the bottom of the second end; when the gas transmission assembly (400) stops working, the gas transmission hole (313) is connected to the external atmosphere through the gas leakage hole (424); when the gas transmission assembly (400) fails, the gas transmission hole (313) is connected to the outside atmosphere through the gas leakage hole (424), and when the pressure in the compression cavity (311) is negative pressure, gas is sucked through the gas leakage hole (424).

2. The air compressor package of claim 1, further comprising: the compressor control system comprises a control module (500), a power supply (600) and a gas transmission switch (700), wherein the power supply (600) is used as a power source of the compressor (300), the control module (500) is connected with the gas transmission switch (700), and the gas transmission switch (700) is connected with a gas inlet of the compressor (300);

the gas delivery assembly (400) further comprises: a power switch (430) connected between the power source (600) and the gas source (410);

the control module (500) is configured to: the gas transmission switch (700) is controlled to be closed, and meanwhile, the power switch (430) is controlled to be electrified.

3. The air compressor assembly according to claim 2, further comprising a solenoid valve (900) connected to the air delivery switch (700) and the power switch (430), wherein the control module (500) turns the air delivery switch (700) on and off by controlling the solenoid valve (900), and the control module (500) turns the power switch (430) on and off by controlling the solenoid valve (900); and/or the presence of a gas in the gas,

the air source (410) comprises a fan; and/or the presence of a gas in the gas,

the gas delivery switch (700) comprises a gas valve; and/or the presence of a gas in the gas,

the power switch (430) includes a relay.

4. The air compressor package of claim 2, wherein the control module (500) is further configured to: controlling the gas transmission switch (700) to be turned on, and simultaneously controlling the power switch (430) to be powered off; and/or the presence of a gas in the gas,

the control module (500) is further configured to: and controlling the power switch (430) to be powered on, and controlling the power supply (600) to be powered off.

5. The air compressor assembly according to claim 1, wherein the air delivery assembly (400) further comprises an air leakage switch (440) with an adjustable opening degree, and the air leakage switch (440) is arranged at the air leakage hole (424).

6. Air compressor group according to claim 1, characterized in that the angle between the axis of the delivery orifice (313) and the axis of the rotor (321) ranges from 1 ° to 90 °.