Silent air compressor

Abstract

The utility model belongs to the field of mechanical engineering and fluid dynamics, and particularly relates to a mute type air compressor which comprises a box body, a cover plate, an air inlet, a screw type air compressor, an air inlet pipe and the like, the cover plate is rotatably connected to the upper portion of the box body, the air inlet is fixedly connected to the middle of the rear portion of the cover plate, and the screw type air compressor is installed at the bottom end in the box body. The air inlet pipe is fixedly connected to the rear side of the upper portion of the screw-type air compressor. The sound insulation plate and the sound insulation cotton are elaborately arranged at key positions of the box body, noise generated in the operation process of the screw type air compressor is greatly absorbed, a more comfortable and quiet working and living environment is created for operators and the surrounding environment, meanwhile, vibration of the screw type air compressor can be effectively isolated through the ingenious design of the rubber pad and the shock absorber, and the service life of the screw type air compressor is prolonged. The transmission of noise is further inhibited, and the abrasion and damage of mechanical parts in the screw type air compressor caused by long-term vibration can be effectively reduced, so that the service life of the screw type air compressor is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the fields of mechanical engineering and fluid dynamics, and in particular relates to a silent air compressor. Background Technology

[0002] An air compressor, also known as an air compressor, is a device that converts electrical energy into gas pressure energy. It compresses air, reducing its volume and increasing its pressure, and then supplies this compressed air to various production machines. Due to its unique advantages in energy storage, transmission, and power generation, compressed air is widely used in industrial production, manufacturing, construction, and many other fields, becoming an indispensable power source for modern industry.

[0003] However, traditional air compressors often produce significant noise and vibration during operation. This noise not only negatively impacts the physical and mental health of operators but can also disturb the tranquility of the surrounding environment, affecting the normal activities of nearby residents or businesses. Furthermore, long-term vibration can accelerate the wear and tear on the internal mechanical components of the air compressor, shorten its service life, and increase maintenance costs.

[0004] Therefore, a silent air compressor is particularly needed to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of traditional air compressors, which generate a lot of noise and vibration during operation, affecting the health of operators and the quietness of the surrounding environment, accelerate equipment wear, shorten service life, and increase maintenance costs, this utility model provides a silent air compressor.

[0006] This utility model is achieved through the following technical approach: A silent air compressor includes a housing, a cover plate, an air inlet, a screw air compressor, an air inlet pipe, an air outlet pipe, an oil-gas separator, a feed inlet, and a discharge outlet. The cover plate is rotatably connected to the upper part of the housing. The air inlet is fixedly connected to the center of the rear part of the cover plate. The screw air compressor is disposed inside the housing. The air inlet pipe is fixedly connected to the upper rear side of the screw air compressor and located directly above the air inlet, with its top end contacting the bottom end of the air inlet. The center points of the two are on the same vertical line. The air outlet pipe is fixedly connected to the lower front side of the screw air compressor. The oil-gas separator is installed at the front of the housing. The inlet is fixed to the rear of the lower end of the oil-gas separator and connected to the outlet pipe in front of it. The outlet is fixed to the front of the upper end of the oil-gas separator. It also includes a sound insulation board, sound insulation cotton, rubber pads and vibration dampers. The sound insulation board is fixed to the inner side wall of the housing. The sound insulation cotton is fixed to the sound insulation board and its sound insulation area is equal to that of the sound insulation board. The rubber pads are slidably connected between the corresponding multiple sound insulation cottons. The screw air compressor is located above the rubber pads and in contact with them. Multiple vibration dampers are set between the bottom of the housing and the bottom of the rubber pads to form an effective vibration isolation layer.

[0007] Preferably, the system also includes water bags, water pipes, circulation pipes, water pumps, a water tank, and a chiller. The four water bags, arranged in an arc shape, are distributed on the left and right sides and fixed to the outside of the screw air compressor. Two water pipes are distributed on the left and right sides, with one water pipe fixed between the two water bags on the left and the other fixed between the two water bags on the right, and both water pipes extending to the outside of the housing. Each circulation pipe is fixed between every two horizontally aligned water bags and located inside the housing. The water tank is installed at the bottom of the housing and contains coolant. Two water pumps are symmetrically distributed and installed outside the water tank, with their pumping ends connected to the water tank. The inlet end of each water pipe is connected to the outlet end of each water pump. The chiller is installed at the bottom of the water tank.

[0008] As a preferred option, it also includes casters. The four casters are arranged in a square shape and installed at the four corners of the bottom of the tank. Their bottom ends are lower than the bottom of the water tank, and the casters are brake casters.

[0009] Preferably, it also includes a push handle, which is fixed to the upper rear side of the housing.

[0010] As a preferred option, a flange is provided at the very front of the discharge port.

[0011] Preferably, the push handle is provided with a square anti-slip sleeve that fits it.

[0012] Beneficial effects:

[0013] By carefully installing sound insulation panels and sound insulation cotton in key parts of the housing, the noise generated during the operation of the screw air compressor is significantly absorbed, creating a more comfortable and quiet working and living environment for operators and the surrounding environment. At the same time, the ingenious design of rubber pads and vibration dampers not only effectively isolates the vibration of the screw air compressor and further suppresses the transmission of noise, but also effectively reduces the wear and damage of the internal mechanical parts of the screw air compressor caused by long-term vibration, thereby extending the service life of the screw air compressor and reducing maintenance costs.

[0014] By designing water bags, water pipes, circulation pipes, water tanks, water pumps, and refrigeration units, cooling water is circulated throughout the screw air compressor, effectively carrying away heat and reducing the temperature of the screw air compressor, thereby reducing vibrations caused by thermal expansion and contraction. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the screw air compressor, inlet pipe, and outlet pipe of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the water bag, water pipe, and circulation pipe components of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the sound insulation board, sound insulation cotton, and rubber pad components of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the sound insulation board, sound insulation cotton, and vibration damper components of this utility model.

[0020] Explanation of reference numerals in the attached diagram: 1. Housing, 2. Casters, 3. Cover plate, 31. Air inlet, 4. Screw air compressor, 41. Air inlet pipe, 42. Air outlet pipe, 5. Water bag, 6. Water pipe, 61. Circulation pipe, 7. Water pump, 8. Water tank, 9. Refrigerator, 10. Sound insulation board, 11. Sound insulation cotton, 12. Rubber pad, 13. Vibration damper, 14. Oil-gas separator, 141. Feed inlet, 142. Discharge outlet, 15. Push handle. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Example: A silent air compressor, such as Figures 1-5As shown, the system includes a housing 1, casters 2, a cover plate 3, an air inlet 31, a screw air compressor 4, an air inlet pipe 41, an air outlet pipe 42, an oil-gas separator 14, a feed inlet 141, a discharge outlet 142, and a push handle 15. The cover plate 3 is rotatably connected to the upper part of the housing 1, with its bottom end contacting the top of the housing 1 to ensure that the housing 1 is covered. The air inlet 31 is welded to the center of the rear of the cover plate 3, with its lower end passing through the cover plate 3 and located inside the housing 1. The air inlet 31 is equipped with a filter screen to ensure the purity of the air. The screw air compressor 4 is located inside the housing 1 and is existing technology, consisting of a main unit, a compression system, a drive system, an oil circuit system, and a control system. Compared with traditional piston air compressors, the screw air compressor 4 has higher efficiency. To achieve higher efficiency, less wear, and lower noise levels, the intake pipe 41 is welded to the upper rear side of the screw air compressor 4, located directly above the intake port 31, with its top end contacting the bottom end of the intake port 31. The center points of both are on the same vertical line. The outlet pipe 42 is welded to the lower front side of the screw air compressor 4. The oil-gas separator 14 is bolted to the front of the housing 1. The feed port 141 is welded to the lower rear of the oil-gas separator 14, facilitating lubricating oil sedimentation and separation. The feed port 141 is located in front of the outlet pipe 42 and connected to it. The discharge port 142 is welded to the upper front of the oil-gas separator 14, ensuring clean air discharge. A flange is provided at the very front of the discharge port 142. It provides standardized interfaces for easy connection to the target machine's piping. Four casters 2 are arranged in a U-shape and bolted to the four corners of the bottom of the housing 1 to ensure balance during movement. These casters 2 are braked casters equipped with foot brakes; pressing the foot brake locks the direction and position of the casters 2, ensuring stability. A push handle 15 is welded to the upper rear side of the housing 1 for easy movement from back to front. The push handle 15 has a matching square anti-slip sleeve for a secure grip. The system also includes a sound insulation panel 10, sound insulation cotton 11, rubber pads 12, and vibration dampers 13. The sound insulation panel 10 is glued to the inner wall of the housing 1, fully covering the interior space and effectively blocking sound. Noise propagates from all directions. To ensure good sound insulation, sound insulation cotton 11 is bonded to the sound insulation panel 10. Its sound insulation area is equal to that of the sound insulation panel 10, completely covering the surface of the sound insulation panel 10. This prevents any uncovered parts from becoming weak points in sound transmission, maximizing the sound insulation effect. Each sound insulation panel 10 and its corresponding sound insulation cotton 11 form a set of sound insulation units. One set of sound insulation units isolates other systems of the screw air compressor 4 (main unit, oil circuit system, and control system) and the drive system. Other systems usually generate high noise, and the drive system also generates noise. Through physical isolation, noise propagation can be significantly reduced. Rubber pads 12 are slidably connected between the corresponding multiple sound insulation cotton 11. Rubber has good elasticity and vibration absorption properties.It can effectively absorb and isolate vibrations. The screw air compressor 4 is located above and in contact with the rubber pad 12. Multiple vibration dampers 13 are set between the bottom of the inner end of the housing 1 and the bottom of the outer end of the rubber pad 12, forming an effective vibration isolation layer, mainly absorbing and isolating the vibrations generated by the screw air compressor 4.

[0023] like Figure 3 As shown, it also includes water bags 5, water pipes 6, circulation pipes 61, a water pump 7, a water tank 8, and a cooler 9. The four arc-shaped water bags 5 are distributed left and right, and are connected to the outside of the screw air compressor 4 by adhesive bonding. Two water pipes 6 are distributed left and right; one water pipe 6 is welded between the two water bags 5 on the left, and the other water pipe 6 is welded between the two water bags 5 on the right, with both water pipes 6 extending to the outside of the housing 1. Each circulation pipe 61 is welded between every two horizontally aligned water bags 5 and is located inside the housing 1. The water tank 8 is secured by bolts. Connected to the bottom of the housing 1, it contains coolant, which is either ethylene glycol-based or silicone oil-based, with a high boiling point and good thermal stability, meeting the requirements of long-term operation. The bottom of the casters 2 is lower than the bottom of the water tank 8, allowing the water tank 8 to be suspended above the ground, avoiding direct contact with the ground, reducing the risk of corrosion, and facilitating cleaning and maintenance. Two water pumps 7 are symmetrically distributed and connected to the outside of the water tank 8 by bolts, with their pumping ends connected to the water tank 8. The inlet end of each water pipe 6 is connected to the outlet end of each water pump 7. The cooler 9 is connected to the bottom of the water tank 8 by bolts.

[0024] When compressed air needs to be supplied to the target machine, the operator first moves the housing 1 to the rear of the target machine by holding the push handle 15. After ensuring the position is accurate, the operator steps on the foot brake of the caster 2 to fix the housing 1 and prevent it from moving. Then, the operator securely connects the pipeline of the target machine to the discharge port 142 to ensure that the air path is unobstructed. Then, the operator rotates the cover plate 3 upward to open the housing 1, exposing the oil circuit system of the screw air compressor 4. The operator adds lubricating oil to the oil circuit system of the screw air compressor 4 to ensure that the compression system of the screw air compressor 4 can be fully lubricated during operation. The operator then rotates the cover plate 3 downward to close the housing 1.

[0025] Then, the screw air compressor 4, oil-gas separator 14, water pump 7, and refrigeration unit 9 are started in sequence. The screw air compressor 4 starts to run immediately. Outside air is drawn into the compression system of the screw air compressor 4 through the air inlet 31 and the air inlet pipe 41. After being compressed by the compression system, the air is sent into the oil-gas separator 14 through the feed inlet 141. During the compression process, the lubricating oil used for lubrication enters the oil-gas separator 14 along with the air. The oil-gas separator 14 operates to separate the lubricating oil from the air. The settled lubricating oil flows back to the screw air compressor 4 through the feed inlet 141 to continue participating in the lubrication cycle. The separated clean air is discharged from the discharge outlet 142 and supplied to the target machine.

[0026] During operation, the screw air compressor 4 will generate certain noise and vibration. The sound insulation cotton 11 and the sound insulation board 10 together form a sound insulation layer to block the noise from spreading from all directions. At the same time, the rubber pad 12 moves with the vibration of the screw air compressor 4 to absorb and isolate the vibration. The vibration damper 13 further absorbs and isolates the vibration generated by the screw air compressor 4 to prevent these vibrations from being transmitted to the surrounding environment through the housing 1 and causing noise pollution.

[0027] In addition, the screw air compressor 4 generates a large amount of heat during operation. The right water pump 7 operates, drawing away the coolant from the water tank 8 and sending the coolant into the right water pipe 6. Finally, the coolant is sent from the right water pipe 6 into the two right water bags 5. The coolant in the two right water bags 5 flows into the two left water bags 5 through the circulation pipe 61 to absorb the heat generated by the screw air compressor 4. At the same time, the left water pump 7 operates, drawing away the coolant from the two left water bags 5 through the left water pipe 6 and sending the coolant back into the water tank 8. This process is repeated to achieve a closed-loop circulation of the coolant, reducing the operating temperature of the screw air compressor 4. During this process, the refrigeration unit 9 continuously operates to cool the coolant in the water tank 8, ensuring that the coolant always maintains a low temperature and improving cooling efficiency.

[0028] When the target machine no longer needs compressed air supply, turn off the screw air compressor 4, oil-gas separator 14, water pump 7 and refrigeration unit 9 in sequence.

[0029] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A mute type air compressor, comprising a box (1), a cover plate (3), an air inlet (31), a screw air compressor (4), an air inlet pipe (41), an air outlet pipe (42), an oil-gas separator (14), an inlet (141) and an outlet (142), the cover plate (3) is rotatably connected to the upper part of the box (1), the air inlet (31) is fixedly connected to the middle of the rear part of the cover plate (3), the screw air compressor (4) is arranged in the box (1), the air inlet pipe (41) is fixedly connected to the upper rear side of the screw air compressor (4) and is located directly above the air inlet (31), the top end of the air inlet pipe (41) is in contact with the bottom end of the air inlet (31), and the center points between the air inlet pipe (41) and the air inlet (31) are located on the same vertical line, the air outlet pipe (42) is fixedly connected to the lower front side of the screw air compressor (4), the oil-gas separator (14) is installed on the front part of the box (1), the inlet (141) is fixedly connected to the lower rear end of the oil-gas separator (14) and is connected to the front of the air outlet pipe (42), and the outlet (142) is fixedly connected to the upper front end of the oil-gas separator (14), characterized in that: the mute type air compressor further comprises sound insulation boards (10), sound insulation cotton (11), rubber pads (12) and dampers (13), the sound insulation boards (10) are fixedly connected to the inner side walls of the box (1), the sound insulation cotton (11) is fixedly connected to the sound insulation boards (10), the sound insulation area of the sound insulation cotton (11) is equal to that of the sound insulation boards (10), the rubber pads (12) are slidably connected between corresponding sound insulation cotton (11), the screw air compressor (4) is located above the rubber pads (12) and is in contact with the rubber pads (12), and a plurality of dampers (13) are arranged between the inner bottom end of the box (1) and the outer bottom end of the rubber pads (12), forming an effective vibration isolation layer. The mute type air compressor further comprises water bags (5), water pipes (6), circulating pipes (61), water pumps (7), a water tank (8) and a refrigerator (9), four water bags (5) with an arc structure are distributed on the left and right sides and are fixedly connected to the outside of the screw air compressor (4), two water pipes (6) are distributed on the left and right sides, one of the two water pipes (6) is fixedly connected between the two water bags (5) on the left side, the other water pipe (6) is fixedly connected between the two water bags (5) on the right side, and the two water pipes (6) all pass out of the box (1), each circulating pipe (61) is fixedly connected between every two water bags (5) aligned transversely and is located in the box (1), the water tank (8) is installed at the bottom end of the box (1) and contains cooling liquid in the inside, two water pumps (7) are symmetrically distributed and are installed outside the water tank (8), the water suction end of each water pump (7) is connected with the water outlet end of each water pump (7), and the refrigerator (9) is installed at the bottom end of the water tank (8).

2. The silent air compressor as claimed in claim 1, wherein: The mute type air compressor further comprises universal wheels (2), four universal wheels (2) are distributed in a mouth-shaped type and are installed at the four corners of the bottom end of the box (1), the bottom end of the universal wheel (2) is lower than the bottom end of the water tank (8), and the universal wheel (2) is a brake universal wheel.

3. The silent air compressor as claimed in claim 2, wherein: The mute type air compressor further comprises a push handle (15), the push handle (15) is fixedly connected to the upper rear side of the box (1).

4. The silent air compressor as claimed in claim 3, wherein: The front end of the outlet (142) is provided with a flange plate.

5. The silent air compressor as claimed in claim 4, wherein: The outside of the push handle (15) is provided with a square anti-skid sleeve matched with the push handle (15).

6. The silent air compressor as claimed in claim 5, wherein: ​

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