Improved air compressor air inlet system

Abstract

The utility model discloses an improved air compressor air inlet system which comprises a compressor main machine, the air inlet end of the compressor main machine is connected with an air inlet valve, the air outlet end of the compressor main machine is connected with an oil-gas separation barrel, and the air outlet end of the oil-gas separation barrel is connected with an air outlet pipeline. The gas inlet valve is provided with two gas inlets I, one gas inlet I is connected with a loading electromagnetic valve, the gas inlet end of the loading electromagnetic valve is connected with a shuttle valve, the shuttle valve is provided with two gas inlets II, one gas inlet II is communicated with the atmosphere, and the other gas inlet II is communicated with the oil-gas separation barrel; the other gas inlet I is connected with a gas inlet pipeline, a branch is arranged on the gas inlet pipeline, an unloading electromagnetic valve is arranged on the branch, and the gas inlet end of the unloading electromagnetic valve is communicated with the oil-gas separation barrel; therefore, the problems that in the prior art, an air inlet valve cannot be normally opened, and an air compressor frequently fails to start are solved.

Description

Technical Field

[0001] This utility model belongs to the field of air compressor technology, specifically relating to an improved air compressor intake system. Background Technology

[0002] An air compressor is a device that converts mechanical energy into gas pressure energy. It is primarily used to generate compressed air and is widely used in industries such as manufacturing, construction, and medicine. Based on their working principle, air compressors can be classified into types such as piston, screw, centrifugal, and scroll compressors. The compressed air they produce can be used to drive tools, control instruments, pneumatic equipment, etc., making it an indispensable power source in industrial production.

[0003] Currently, the solenoid valves in existing air compressors are typically integrated loading and unloading designs. The valve core of the loading section is 8 mm thick, plus the rubber part, totaling 10 mm. It moves linearly within the valve body. When the air in the oil-gas separator contains a lot of water or impurities, the valve core is prone to sticking to the valve body. This causes the unloading valve core to fail to close when the solenoid valve is energized, resulting in no power source for the loading section, preventing the solenoid valve from functioning properly, and preventing the air source in the oil-gas separator from communicating with the intake valve. Furthermore, the intake valve uses an aluminum alloy piston design. With frequent operation of the air compressor, the piston is prone to wear over time, leading to higher requirements for the power source of the intake valve. Therefore, a higher pressure is needed to ensure the intake valve can open normally; otherwise, the air compressor will frequently experience start-up failures. Utility Model Content

[0004] The purpose of this invention is to provide an improved air compressor intake system to solve the aforementioned problems in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An improved air compressor intake system includes a compressor main unit. The intake end of the compressor main unit is connected to an intake valve, and the outlet end of the compressor main unit is connected to an oil-gas separator. The outlet end of the oil-gas separator is connected to an outlet pipeline. The intake valve has two inlets, one of which is connected to a loading solenoid valve. The intake end of the loading solenoid valve is connected to a shuttle valve. The shuttle valve has two inlets, one of which is open to the atmosphere, and the other is connected to the oil-gas separator. The other inlet is connected to the intake pipeline, which has a branch line. An unloading solenoid valve is installed on the branch line. The inlet end of the unloading solenoid valve is connected to the oil-gas separator, and the outlet end of the unloading solenoid valve is open to the atmosphere.

[0007] Optionally, the air intake end of the air intake pipe is connected to a filter device.

[0008] Optionally, the air inlet of the filter device is connected to the atmosphere.

[0009] Optionally, the spools of the unloading electromagnetic valves are all of diaphragm type.

[0010] Optionally, the loading electromagnetic valve and the unloading electromagnetic valve are connected to the same power source.

[0011] Optionally, the pipeline, which is connected to the atmosphere and through which the shuttle valve communicates with the atmosphere, is also provided with a filtering device.

[0012] Optionally, the air outlet pipeline is connected to the upper end of the oil-gas separation bucket.

[0013] Beneficial effects: The improved air compressor intake system separates the original integrated design electromagnetic valve, changes it into a loading electromagnetic valve and an unloading electromagnetic valve, and adds a shuttle valve on the basis of the original electromagnetic valve; under the working state of the air compressor, the shuttle valve can automatically select the second air inlet with larger air pressure among the two air inlets and make the loading electromagnetic valve connected to the shuttle valve conductive, and the larger air pressure can more easily open the valve of the air inlet valve, so that the air in the atmosphere enters the compressor host for compression; in addition, the design of the separated loading electromagnetic valve and unloading electromagnetic valve makes the power source of the air inlet valve not affected by the unloading electromagnetic valve, which double guarantees that the air inlet valve can be normally opened and avoids frequent start failure of the air compressor. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the improved air compressor intake system.

[0015] In the figure: 1, compressor host; 2, air inlet valve; 3, oil-gas separation bucket; 4, air outlet pipeline; 5, loading electromagnetic valve; 6, shuttle valve; 7, air inlet pipeline; 8, branch; 9, unloading electromagnetic valve; 10, filtering device. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the present application will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the drawings structure is only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application.

[0017] In the description of the present utility model, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore cannot be understood as the limitation to the protection scope of the present utility model;The orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0018] In the description of the present utility model, it needs to be understood that the "first", "second" and the like are used to limit the parts, only for the convenience of distinguishing the corresponding parts, like no other declaration, the above words have no special meaning, therefore cannot be understood as the limitation to the protection scope of the present utility model.

[0019] Embodiment

[0020] As Figure 1 shown, the present embodiment provides a modified air compressor intake system, including compressor host 1, the air inlet end of compressor host 1 is connected with air inlet valve 2, the air outlet end of compressor host 1 is connected with oil-gas separation barrel 3, the air outlet end of oil-gas separation barrel 3 is connected with air outlet pipeline 4;Air inlet valve 2 is provided with two air inlets one, one of which is connected with loading electromagnetic valve 5, the air inlet end of loading electromagnetic valve 5 is connected with shuttle valve 6, shuttle valve 6 is provided with two air inlets two, one of which is communicated with atmosphere, and the other air inlet two is communicated with oil-gas separation barrel 3;The other air inlet one is connected with air inlet pipeline 7, air inlet pipeline 7 is provided with branch 8, unloading electromagnetic valve 9 is arranged on branch 8, the air inlet end of unloading electromagnetic valve 9 is communicated with oil-gas separation barrel 3, and the air outlet end of unloading electromagnetic valve 9 is communicated with atmosphere.

[0021] The compressor main machine 1 is arranged in the air compressor main body, which is a prior art and is composed of an oil circulation system, an air circulation system, a water circulation system, etc. The compressor main machine 1 is a prior art and is a device for compressing gas. The compressor main machine 1 is used for compressing air to make the air into high-temperature and high-pressure gas. The air inlet valve 2 is in communication with the compressor main machine 1 and is used for controlling the loading and unloading of the system. When the air inlet valve 2 is turned on, the system is in a loading state. When the air inlet valve 2 is closed, the system is in an unloading state. Two air inlet openings are formed in the air inlet valve 2. One of the air inlet openings is connected with a loading electromagnetic valve 5. The air inlet end of the loading electromagnetic valve 5 is connected with a shuttle valve 6. The shuttle valve 6 is provided with two air inlet openings. One of the air inlet openings is in communication with the atmosphere, and the other air inlet opening is in communication with an oil-gas separation barrel 3. The shuttle valve 6 can select the air inlet opening with higher air pressure to communicate with the air outlet of the shuttle valve 6. The power gas source is delivered to the air inlet valve 2 through the loading electromagnetic valve 5, pushes the valve of the air inlet valve 2 open, and makes the atmosphere enter the compressor main machine 1 through the air inlet pipeline 7 and the air inlet valve 2 for compression. The other air inlet opening is connected with the air inlet pipeline 7. The air inlet pipeline 7 is provided with a branch pipeline 8. The branch pipeline 8 is provided with an unloading electromagnetic valve 9. The air inlet end of the unloading electromagnetic valve 9 is connected with the oil-gas separation barrel 3. When the system is in an unloading state, the unloading electromagnetic valve 9 is opened, the loading electromagnetic valve 5 is closed, the air pressure in the system is discharged through the air outlet end of the unloading electromagnetic valve 9, and the air pressure in the system is reduced.

[0022] It should be noted that the air inlet system further comprises a pressure sensor and a controller. When the pressure sensor detects that the air pressure in the system is higher than the set value, a signal is sent to the controller to control the power supply to be disconnected. At this time, the unloading electromagnetic valve 9 is opened to discharge the high-pressure gas in the system. When the pressure sensor detects that the air pressure in the system is lower than the set value, a signal is sent to the controller to control the power supply to be turned on. At this time, the loading electromagnetic valve 5 is opened, the power gas source turns on the air inlet valve 2, the atmosphere enters the compressor main machine 1 for compression, and the pressure sensor is arranged to ensure the safe operation of the system and avoid unnecessary waste of resources.

[0023] Generally, when the air compressor is started, the air pressure in the system is lower than the atmospheric pressure. The shuttle valve 6 preferentially selects the atmosphere as the power gas source to turn on the air inlet valve 2. If the atmospheric pressure is less than or equal to the air pressure in the system, the air pressure in the system can also be used as the power source to slowly increase the pressure and turn on the air inlet valve 2.

[0024] The utility model discloses an improved air compressor intake system, the original electromagnetic valve of integrated design of loading and unloading is separated, changes into loading electromagnetic valve 5 and unloading electromagnetic valve 9, and the shuttle valve 6 is added on the basis of original electromagnetic valve, under the air compressor working condition, the shuttle valve 6 can automatically select two intake ports two larger gas pressure and the loading electromagnetic valve 5 connected on the shuttle valve 6 conduction, and the larger gas pressure can open the valve of intake valve 2 more easily, make the air in the atmosphere into the compressor host 1 and compress, in addition, the design of loading electromagnetic valve 5 and unloading electromagnetic valve 9 separates, makes the power gas source of intake valve 2 not be influenced by unloading electromagnetic valve 9, double -guaranteed that intake valve 2 can normally open, avoids the frequent start failure of air compressor.

[0025] In one of the embodiments, the air inlet end of the air inlet pipeline 7 is connected to the filtering device 10. By providing the filtering device 10, impurities in the air can be filtered out, preventing the impurities from entering the system and causing the intake valve 2 to be blocked.

[0026] In one of the embodiments, the air inlet end of the filtering device 10 is in communication with the atmosphere. During use, the atmosphere is first filtered by the filtering device 10, and the purified air after filtering enters the compressor host 1 for compression through the intake valve 2. The oil-gas mixture after compression enters the oil-gas separation barrel 3 for separation, and the compressed air is discharged from the air outlet pipeline 4 to enter a gas storage tank or a gas using device. The hydraulic oil is discharged from the bottom of the oil-gas separation barrel 3 to enter a cooler for cooling, and the cooled hydraulic oil returns to the compressor host 1.

[0027] In one of the embodiments, the valve core of the unloading electromagnetic valve 9 is a diaphragm type valve core. Compared with a piston type valve core, the diaphragm type valve core does not stick to the valve body, greatly reducing the failure rate of the unloading electromagnetic valve 9 and ensuring the normal opening and closing of the unloading electromagnetic valve 9.

[0028] In one of the embodiments, the loading electromagnetic valve 5 and the unloading electromagnetic valve 9 are connected to the same power supply. When the power supply is turned on, the loading electromagnetic valve 5 is opened, and the unloading electromagnetic valve 9 is closed. When the power supply is turned off, the loading electromagnetic valve 5 is closed, and the unloading electromagnetic valve 9 is opened.

[0029] In one of the embodiments, the pipeline in communication with the atmosphere of the shuttle valve 6 is also provided with a filtering device 10, further ensuring that the intake valve 2 will not be blocked by impurities in the air.

[0030] In one of the embodiments, the air outlet pipeline 4 is connected to the upper end of the oil-gas separation barrel 3.

[0031] The utility model discloses an improved air compressor intake system, the original electromagnetic valve of integrated design of loading and unloading is separated, changes into loading electromagnetic valve 5 and unloading electromagnetic valve 9, and increases shuttle valve 6 on the basis of original electromagnetic valve, under the working condition of air compressor, shuttle valve 6 can automatically select two inlet port two of bigger gas pressure and the conduction of loading electromagnetic valve 5 connected with shuttle valve 6, and bigger gas pressure can open the valve of inlet valve 2 more easily, and the air in atmosphere enters the compressor host 1 and compresses, in addition, the design of loading electromagnetic valve 5 and unloading electromagnetic valve 9 separates, so that the power gas source of inlet valve 2 is not influenced by unloading electromagnetic valve 9, and double guarantee that inlet valve 2 can normally open, avoids the frequent start -up failure of air compressor.

[0032] Finally, it should be noted that: the above only for the preferred embodiments of the utility model and does not limit the protection scope of the utility model. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A modified air compressor intake system, characterized by, The compressor host (1) is provided with an air inlet valve (2) connected to the air inlet end of the compressor host (1), an oil-gas separation drum (3) connected to the air outlet end of the compressor host (1), and an air outlet pipeline (4) connected to the air outlet end of the oil-gas separation drum (3); the air inlet valve (2) is provided with two air inlet ports, one of which is connected to a loading electromagnetic valve (5), the air inlet end of the loading electromagnetic valve (5) is connected to a shuttle valve (6), the shuttle valve (6) is provided with two air inlet ports, one of which is connected to the atmosphere and the other of which is connected to the oil-gas separation drum (3); the other air inlet port is connected to an air inlet pipeline (7), the air inlet pipeline (7) is provided with a branch pipeline (8), the branch pipeline (8) is provided with an unloading electromagnetic valve (9), the air inlet end of the unloading electromagnetic valve (9) is connected to the oil-gas separation drum (3), and the air outlet end of the unloading electromagnetic valve (9) is connected to the atmosphere.

2. The improved air compressor intake system of claim 1, wherein The air inlet end of the air inlet pipeline (7) is connected to a filtering device (10).

3. The improved air compressor intake system of claim 2, wherein, The air inlet end of the filtering device (10) is connected to the atmosphere.

4. The improved air compressor intake system of claim 1, wherein The valve core of the unloading electromagnetic valve (9) is a diaphragm type valve core.

5. The improved air compressor intake system of claim 1, wherein The loading electromagnetic valve (5) and the unloading electromagnetic valve (9) are connected to the same power supply.

6. The improved air compressor intake system of claim 1, wherein The pipeline through which the shuttle valve (6) is connected to the atmosphere is also provided with a filtering device (10).

7. The improved air compressor intake system of claim 1, wherein The air outlet pipeline (4) is connected to the upper end of the oil-gas separation drum (3).

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