Novel oil-free screw air compressor

Abstract

The novel oil-free screw air compressor comprises a shell and an air storage tank, a compressor, a water vapor barrel, a cooler, a water purifier and a motor are arranged in the shell, the motor is connected to the top of the compressor, the right side wall of the compressor communicates with one end of a first air guide pipe, the other end of the first air guide pipe communicates with the water vapor barrel, and the top of the water vapor barrel communicates with a first conveying pipe; the compressor is provided with a water vapor barrel, the water vapor barrel is connected with a water purifier, calcium ions, magnesium ions and other ions in tap water are exchanged through the water purifier, then water is softened, it is avoided that water scales are formed in a machine body and a pipeline when the tap water is used for assisting air compression, the service life of the compressor is prolonged, and the efficiency of the compressor is improved. Purified water is used for replacing lubricating oil to participate in the air compression process, oil pollution cannot be generated, environmental protection is facilitated, and the oil-free screw air compressor is low in rotating speed in the air compression process and low in temperature in the compression process, so that the exhaust temperature is low, and the safety performance is high.

Description

Technical Field

[0001] The present application relates to the field of compressors, and in particular to a novel oil-free screw air compressor. Background Art

[0002] An air compressor is a device used to compress gas. As people's awareness of health and environmental protection increases, the quality requirements for medicine, electronics, food, medical care, automobiles, etc. are getting higher and higher, and the requirements for oil content grades are becoming more and more stringent. Generally, oil-free screw air compressors are used to compress air, and water is used instead of lubricating oil. Water plays a role in lubrication, cooling, and sealing during the compression process. However, tap water contains calcium and magnesium ions and the water quality is relatively hard. If the compressor uses tap water to assist in compressing air for a long time, scale will form in the body and pipes, which will affect the service life and efficiency of the compressor. Utility Model Content

[0003] The present application provides a novel oil-free screw air compressor, which is provided with a water vapor barrel, which is connected to a water purifier. The water purifier is used to exchange calcium, magnesium and other ions in tap water, thereby softening the water quality, avoiding the formation of scale in the compressor body and pipelines due to long-term use of tap water to assist in compressing air, thereby improving the service life and efficiency of the compressor; water is used instead of lubricating oil to participate in the air compression process, which plays the role of lubrication, cooling, sealing, etc., and no oil pollution is generated in the compression process, which is beneficial to environmental protection. In addition, the oil-free screw air compressor has a low rotation speed during the air compression process, and the temperature during the compression process is low, resulting in a low exhaust temperature and high safety performance.

[0004] The present application provides a novel oil-free screw air compressor, comprising: a shell and an air storage tank, a compressor, a water vapor barrel, a cooler, a water purifier, and a motor are arranged in the shell, an air inlet is arranged on the side wall of the shell, a fan is installed on the air inlet, the air inlet is located on the left side of the compressor, a motor is connected to the top of the compressor, a temperature sensor is arranged on the top of the compressor, the right side wall of the compressor is connected to one end of a first air guide pipe, the other end of the first air guide pipe is connected to the water vapor barrel, a pressure sensor is installed on the top of the water vapor barrel, the top of the water vapor barrel is connected to a first delivery pipe, a delivery solenoid valve is arranged on the first delivery pipe, the first delivery pipe is connected to a cooler, the cooler is fixed on the top of the shell, the cooler is connected to a water filter, the water filter is connected to a second delivery pipe, and the second delivery pipe is connected to the compressor;

[0005] A water vapor separator is installed on the top of the water vapor barrel, the water vapor separator is connected to a second air guide pipe, and the second air guide pipe is connected to the air storage tank;

[0006] A water level controller is arranged on the side wall of the steam barrel, a water guide pipe is connected to the right side wall of the steam barrel, a water guide pipe is arranged on the water guide pipe, a water purifier is connected to the water guide pipe, a water inlet pipe is arranged on the water purifier, a water inlet solenoid valve is arranged on the water inlet pipe, a drain pipe is arranged on the left side wall of the steam barrel, a drain solenoid valve is arranged on the drain pipe;

[0007] A PLC controller is arranged on the outer wall of the shell, and the compressor, the motor, the fan, the water purifier, the cooler, the water vapor separator, the water level controller, the temperature sensor, the pressure sensor and each solenoid valve are electrically connected to the PLC controller.

[0008] Furthermore, an air filter is installed at the air inlet.

[0009] Further, the pressure sensor is electrically connected to the delivery solenoid valve.

[0010] Furthermore, the water level controller is electrically connected to the water guide solenoid valve and the water discharge solenoid valve.

[0011] Furthermore, a display screen and a plurality of buttons are provided on the PLC controller.

[0012] It can be seen from the above technical scheme that the present application provides a new type of oil-free screw air compressor, including: a shell and an air storage tank, a compressor, a water vapor barrel, a cooler, a water purifier, and a motor are arranged in the shell, an air inlet is arranged on the side wall of the shell, a fan is installed on the air inlet, the air inlet is located on the left side of the compressor, a motor is connected to the top of the compressor, a temperature sensor is arranged on the top of the compressor, the right side wall of the compressor is connected to one end of the first air duct, the other end of the first air duct is connected to the water vapor barrel, a pressure sensor is installed on the top of the water vapor barrel, the top of the water vapor barrel is connected to the first delivery pipe, a delivery solenoid valve is arranged on the first delivery pipe, the first delivery pipe is connected to the cooler, the cooler is fixed on the top of the shell, the cooler is connected to the water filter, and the water filter is connected A second delivery pipe is provided, the second delivery pipe is connected to the compressor, a water vapor separator is installed on the top of the water vapor barrel, the water vapor separator is connected to the second air guide pipe, the second air guide pipe is connected to the air storage tank, a water level controller is provided on the side wall of the water vapor barrel, a water guide pipe is connected to the right side wall of the water vapor barrel, a water guide solenoid valve is provided on the water guide pipe, the water guide pipe is connected to a water purifier, a water inlet pipe is provided on the water purifier, a water inlet solenoid valve is provided on the water inlet pipe, a drain pipe is provided on the left side wall of the water vapor barrel, a drain solenoid valve is provided on the drain pipe, a PLC controller is provided on the outer wall of the shell, and the compressor, motor, fan, water purifier, cooler, water vapor separator, water level controller, temperature sensor, pressure sensor and each solenoid valve are electrically connected to the PLC controller;The PLC controller controls the rotation of the fan, so that the outside air enters the shell from the air inlet, and the compressor compresses the inhaled air. The compressed air enters the water vapor barrel along the first air guide pipe, thereby increasing the pressure in the water vapor barrel. When the pressure sensor detects that the pressure in the water vapor barrel has increased, the delivery solenoid valve on the first delivery pipe opens, and the water in the water vapor barrel passes into the first delivery pipe and enters the cooler for cooling. The water cooled by the cooler is passed into the compressor to assist the compressor in compressing air. Pure water is used instead of lubricating oil to participate in the air compression process, which plays the role of lubrication, cooling, and sealing. No oil pollution will be generated during the compression process, which is beneficial to environmental protection. The oil-free screw air compressor has a low speed during the air compression process, and the temperature during the compression process is low, resulting in a low exhaust temperature, high safety performance, and high air quality after compression. The air carries a certain amount of moisture, and the water vapor enters the water vapor barrel along the first air pipe. A part of the water is separated and precipitated in the water vapor barrel. The residual moisture in the air is separated by the water vapor separator, and the moisture remains in the water vapor separator. The separated air enters the air storage tank along the second air pipe for temporary storage. The water level controller detects and controls the water level in the water vapor barrel. When the water level is lower than a certain value, the water level controller controls the water guide solenoid valve on the water guide pipe to open, and the water purifier replenishes water into the water vapor barrel. When the water level is higher than a certain value, the water level controller controls the drainage solenoid valve on the drainage pipe to open, discharge the excess water in the water vapor barrel, and use the water purifier to exchange calcium, magnesium and other ions in the tap water, thereby softening the water quality, avoiding the compressor from using tap water to assist in compressing air for a long time to form scale in the body and pipes, thereby improving the service life and efficiency of the compressor. ;

[0013] In summary, the beneficial effects produced by this application are as follows:

[0014] 1. The compressor is equipped with a water vapor barrel, which is connected to a water purifier. The water purifier is used to exchange calcium, magnesium and other ions in tap water to soften the water quality, thereby preventing the compressor from using tap water to assist in compressing air for a long time to form scale in the body and pipes, thereby improving the service life and efficiency of the compressor.

[0015] 2. The compressor uses pure water in the water vapor barrel instead of lubricating oil to participate in the air compression process, which plays the role of lubrication, cooling, sealing, etc. No oil pollution will be generated during the compression process, which is beneficial to environmental protection. In addition, the oil-free screw air compressor has a low speed during the air compression process, and the temperature during the compression process is low, resulting in a low exhaust temperature and high safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation cases. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of this application.

[0018] Figure 2 This is a schematic diagram of the PLC controller structure for this application.

[0019] Illustration Description:

[0020] Among them, 1-shell, 2-air inlet, 3-compressor, 4-temperature sensor, 5-water vapor barrel, 6-first delivery pipe, 7-cooler, 8-water filter, 9-second delivery pipe, 10-first air duct, 11-water vapor separator, 12-second air duct, 13-air storage tank, 14-pressure sensor, 15-water duct, 16-drain pipe, 17-water level controller, 18-motor, 19-fan, 20-air filter, 21-water purifier, 22-PLC controller. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0022] See the above technical solution for Figure 1-Figure 2 .

[0023] Embodiment 1:

[0024] A novel oil-free screw air compressor 3 comprises: a housing 1 and an air storage tank 13. The housing 1 is provided with a compressor 3, a water vapor barrel 5, a cooler 7, a water purifier 21, and a motor 18. The side wall of the housing 1 is provided with an air inlet 2. The air inlet 2 is equipped with a fan 19, so that the outside air enters the housing 1 through the air inlet 2, and then the compressor 3 compresses the inhaled air. The air inlet 2 is located on the left side of the compressor 3. The top of the compressor 3 is connected with a motor 18. The PLC controller 22 controls the motor 18 and the compressor 3 to open. The motor 18 provides kinetic energy for the compressor 3 to compress the air. The top of the compressor 3 is provided with a temperature sensor. The temperature sensor 4 detects the temperature of the compressor 3 and feeds back the temperature signal to the PLC controller 22. The PLC controller 22 controls various devices to maintain the temperature of the auxiliary compressor 3 within a certain range during operation, thereby effectively separating the pure water in the compressor 3 to avoid water vaporization due to excessive temperature, which is not conducive to air compression. The right side wall of the compressor 3 is connected to one end of the first air duct 10, and the other end of the first air duct 10 is connected to the water vapor barrel 5. When the compressor 3 starts to run, the compressor 3 inhales air from the air inlet 2 for compression, and the compressed air enters the water vapor barrel 5 along the first air duct 10, thereby increasing the water vapor barrel 5. A pressure sensor 14 is installed on the top of the water vapor barrel 5, and the top of the water vapor barrel 5 is connected to a first delivery pipe 6. A delivery solenoid valve is arranged on the first delivery pipe 6. The pressure sensor 14 detects the pressure in the water vapor barrel 5 and feeds back the pressure signal to the PLC controller 22. When the pressure sensor 14 detects that the pressure in the water vapor barrel 5 increases, the PLC controller 22 controls the delivery solenoid valve on the first delivery pipe 6 to open, and the water in the water vapor barrel 5 passes into the first delivery pipe 6. The first delivery pipe 6 is connected to the cooler 7. The PLC controller 22 controls the cooler 7 to open, and the pure water passes into the cooler 7 for cooling. The cooler 7 is fixed to the shell. At the top of the body 1, the cooler 7 is connected to the water filter 8. The impurities in the cooled water are filtered through the water filter 8. The water filter 8 is connected to the second delivery pipe 9. The second delivery pipe 9 is connected to the compressor 3. The cooled and filtered water enters the compressor 3 along the second delivery pipe 9 and participates in the air compression process of the compressor 3. Pure water is used instead of lubricating oil to participate in the air compression process, which plays the role of lubrication, cooling, sealing, etc. No oil pollution will be generated during the compression process, which is beneficial to environmental protection. The motor speed of the oil-free screw air compressor 3 is low during the air compression process, and the temperature during the compression process is low, resulting in a low exhaust temperature and high safety performance;

[0025] A water vapor separator 11 is installed on the top of the water vapor barrel 5. The water vapor separator 11 is connected to a second air duct 12. The second air duct 12 is connected to an air storage tank 13. The water cooled by the cooler 7 is passed into the compressor 3 to assist the compressor 3 in compressing air. The compressed air has a certain amount of moisture. The water vapor enters the water vapor barrel 5 along the first air duct 10. A part of the water is separated and precipitated in the water vapor barrel 5. The PLC controller 22 controls the water vapor separator 11 to open, and the residual moisture in the air is separated by the water vapor separator 11. The moisture remains in the water vapor separator 11. The separated air enters the air storage tank 13 along the second air duct 12 for temporary storage.

[0026] A water level controller 17 is arranged on the side wall of the steam barrel 5, a water pipe 15 is connected to the right side wall of the steam barrel 5, a water guide pipe 15 is arranged on the water guide pipe 15, a water guide solenoid valve is arranged on the water guide pipe 15, a water purifier 21 is arranged on the water purifier 21, a water inlet pipe is arranged on the water inlet pipe, a water inlet solenoid valve is arranged on the water guide pipe, a drain pipe 16 is arranged on the left side wall of the steam barrel 5, a drain solenoid valve is arranged on the drain pipe 16, a PLC controller 22 controls the water level controller 17 to open, the water level controller 17 detects and controls the water level in the steam barrel 5, when the water level is lower than a certain value, the water level The controller 17 controls the water guide solenoid valve on the water guide pipe 15 to open, and the water purifier 21 replenishes water into the water vapor barrel 5. When the water level is higher than a certain value, the water level controller 17 controls the drainage solenoid valve on the drainage pipe 16 to open, and discharge the excess water in the water vapor barrel 5. The water inlet pipe connected to the water purifier 21 is connected to the tap water source. After the water in the water purifier 21 is replenished to the water vapor barrel 5, the PLC controller 22 controls the water replenishment solenoid valve to open, replenish tap water into the water purifier 21, purify the water quality of the tap water in time, and then provide pure water to the water vapor barrel 5. The water purifier 21 is used to exchange calcium, magnesium and other ions in the tap water, thereby softening the water quality, avoiding the compressor 3 from using tap water to assist in compressing air for a long time to form scale in the body and pipes, thereby improving the service life and efficiency of the compressor 3;

[0027] The outer wall of the housing 1 is provided with a PLC controller 22, a compressor 3, a motor 18, a fan 19, a water purifier 21, a cooler 7, a water vapor separator 11, a water level controller 17, a temperature sensor 4, and a pressure sensor 14. Each solenoid valve is electrically connected to the PLC controller 22, the temperature sensor 4 detects the temperature of the compressor 3 during operation, thereby ensuring the normal operation of the compressor 3, the pressure sensor 14 detects the pressure in the water vapor barrel 5, and then pure water is introduced to assist the compressor 3 in compressing air, and the PLC controller 22 controls the compressor 3, the motor 18, the fan 19, the water purifier 21, the cooler 7, the water vapor separator 11, the water level controller 17, and the working state of each solenoid valve.

[0028] As a preferred embodiment, an air filter 20 is installed at the air inlet 2 to filter dust and impurities in the air to prevent dust and impurities in the air from being sucked into the compressor 3 and affecting the efficiency and life of the compressor 3.

[0029] As a preferred embodiment, the pressure sensor 14 is electrically connected to the delivery solenoid valve. The pressure sensor 14 detects the pressure in the water vapor barrel 5. When the pressure value exceeds a certain value, the delivery solenoid valve opens, and the water in the water vapor barrel 5 passes into the cooler 7 for cooling and enters the auxiliary compressor 3 to compress the air.

[0030] As a preferred embodiment, the water level controller 17 is electrically connected to the water guide solenoid valve and the drainage solenoid valve. The water level controller 17 detects and controls the water level in the water vapor barrel 5. When the water level is lower than a certain value, the water level controller 17 controls the water guide solenoid valve on the water guide pipe 15 to open, and water is added to the water vapor barrel 5 from the water purifier 21. When the compressed air precipitates and separates a large amount of water, and the water level in the water vapor barrel 5 is higher than a certain value, the water level controller 17 controls the drainage solenoid valve on the drainage pipe 16 to open, and discharges excess water in the water vapor barrel 5.

[0031] As a preferred embodiment, a display screen and multiple buttons are provided on the PLC controller 22. The display screen displays the temperature of the compressor 3 and the pressure value in the water vapor barrel 5. The buttons can set the operating temperature of the compressor 3 and the pressure value in the water vapor barrel 5, and can also control the working status of the compressor 3, the motor 18, the fan 19, the water purifier 21, the cooler 7, the water vapor separator 11 and each solenoid valve.

[0032] In the description of the present invention, it should be understood that the terms "left side", "right side", "top", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope of the present application is indicated by the claims.

[0034] It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present application do not constitute a limitation on the scope of protection of the present application.

Claims

1. A novel oil-free screw air compressor (3), characterized in that: include: A shell (1) and an air storage tank (13), wherein the shell (1) is provided with a compressor (3), a water vapor barrel (5), a cooler (7), a water purifier (21), and a motor (18), wherein the side wall of the shell (1) is provided with an air inlet (2), wherein the air inlet (2) is provided with a fan (19), wherein the air inlet (2) is located on the left side of the compressor (3), wherein the top of the compressor (3) is connected with the motor (18), wherein the top of the compressor (3) is provided with a temperature sensor (4), wherein the right side wall of the compressor (3) is connected with one end of a first air guide pipe (10), wherein the first air guide pipe (11) is connected with the motor (18), wherein the first air guide pipe (11) is connected with the motor (19 ... The other end of an air guide pipe (10) is connected to the water vapor barrel (5), a pressure sensor (14) is installed on the top of the water vapor barrel (5), the top of the water vapor barrel (5) is connected to a first delivery pipe (6), a delivery solenoid valve is arranged on the first delivery pipe (6), the first delivery pipe (6) is connected to the cooler (7), the cooler (7) is fixed on the top of the shell (1), the cooler (7) is connected to a water filter (8), the water filter (8) is connected to a second delivery pipe (9), and the second delivery pipe (9) is connected to the compressor (3); A water vapor separator (11) is installed on the top of the water vapor barrel (5), the water vapor separator (11) is connected to a second air guide pipe (12), and the second air guide pipe (12) is connected to the air storage tank (13); A water level controller (17) is arranged on the side wall of the steam barrel (5); a water guide pipe (15) is connected to the right side wall of the steam barrel (5); a water guide pipe (15) is arranged on the water guide pipe (15); a water guide solenoid valve is arranged on the water guide pipe (15); the water guide pipe (15) is connected to a water purifier (21); a water inlet pipe is arranged on the water purifier (21); a water inlet solenoid valve is arranged on the water inlet pipe; a drain pipe (16) is arranged on the left side wall of the steam barrel (5); a drain solenoid valve is arranged on the drain pipe (16); A PLC controller (22) is disposed on the outer wall of the shell (1); the compressor (3), the motor (18), the fan (19), the water purifier (21), the cooler (7), the water vapor separator (11), the water level controller (17), the temperature sensor (4), the pressure sensor (14) and each of the solenoid valves are electrically connected to the PLC controller (22).

2. A novel oil-free screw air compressor (3) according to claim 1, characterized in that: An air filter (20) is installed at the air inlet (2).

3. A novel oil-free screw air compressor (3) according to claim 1, characterized in that: The pressure sensor (14) is electrically connected to the delivery solenoid valve.

4. A novel oil-free screw air compressor (3) according to claim 1, characterized in that: The water level controller (17) is electrically connected to the water guide solenoid valve and the water discharge solenoid valve.

5. A novel oil-free screw air compressor (3) according to claim 1, characterized in that: The PLC controller (22) is provided with a display screen and a plurality of buttons.

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