A centrifugal air compressor

Abstract

The present invention belongs to the field of air compressors, specifically a centrifugal air compressor, including a filling box, the top of the filling box is open, a compressor body is placed on the inner side of the filling box, an air inlet pipe and an air outlet pipe are fixedly connected to the top of the compressor body, a driving motor is arranged on the outer side of the compressor body, an impeller group for centrifugal compressed air is arranged on the inner side of the compressor body, a transmission shaft is fixedly connected to the middle part of the impeller group, the transmission shaft passes through the outer side of the compressor body, the driving motor is used to drive the transmission shaft to rotate, and a restraining component is arranged on the inner side of the filling box. Through this arrangement, the vibration generated by the compressor body during operation can be greatly reduced, thereby greatly reducing the noise generated by the vibration, and since there are no fixed connecting parts between the compressor body and the outside world, there will be no problem of loosening of the connecting parts under severe vibration.

Description

Technical Field

[0001] The invention belongs to the field of air compressors, in particular to a centrifugal air compressor. Background Art

[0002] An air compressor is a device used to compress gas. It compresses low-pressure air to obtain high-pressure air. The high-pressure air can be directly output or stored in an air tank. The principle of a centrifugal air compressor is that the impeller drives the gas to rotate at high speed, causing the gas to generate centrifugal force. Due to the expansion flow of the gas in the impeller, the flow rate and pressure of the gas after passing through the impeller are increased, and compressed air is continuously produced.

[0003] A patent application with publication number CN117536838A discloses a centrifugal air compressor, including two piston telescopic mechanisms, two centrifugal extrusion structures and a negative pressure air pressure prompt structure. The centrifugal air compressor uses the centrifugal force of the components themselves to squeeze the peristaltic hose, and the centrifugal force can be adjusted by adjusting the speed of the drive motor to control the minimum pressure output intensity of the equipment, thereby realizing the control of both the minimum output pressure and the maximum output pressure.

[0004] Traditional centrifugal air compressors use the rotation of the impeller to draw outside air into the interior and compress the air under the centrifugal effect. Due to the high-speed rotation of the internal impeller, the vibration and noise generated by the entire equipment are relatively large, and the bolts and other components used to fix the centrifugal air compressor are easy to loosen.

[0005] To this end, the present invention provides a centrifugal air compressor. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a centrifugal air compressor described in the present invention comprises a filling box, the top of the filling box is open, a compressor body is placed inside the filling box, an air inlet pipe and an air outlet pipe are fixedly connected to the top of the compressor body, a driving motor is arranged on the outside of the compressor body, an impeller group for centrifugal compressed air is arranged on the inside of the compressor body, a transmission shaft is fixedly connected to the middle of the impeller group, the transmission shaft penetrates to the outside of the compressor body, the driving motor is used to drive the transmission shaft to rotate, a restraining assembly is arranged on the inside of the filling box, the restraining assembly is used to restrain the filling box to reduce the movement range of the filling box, and two symmetrically arranged hollow bottles are fixedly connected to the bottom of the filling box;

[0008] Through the setting of the filling box, a buffer solution is put into the filling box. The buffer solution can be water or lubricating oil. Then the compressor body is put into the filling box, and the hollow bottle is used to provide sufficient buoyancy to the compressor body so that the compressor body can float on the filling box. At the same time, the restraining assembly restrains the compressor body so that the compressor body cannot move greatly, but can move in a small range. When the driving motor drives the transmission shaft and the internal impeller of the compressor body to rotate, the vibration generated will be absorbed by the buffer solution and converted into the shaking of the buffer solution. Through this setting, the vibration generated by the compressor body during operation can be greatly reduced, thereby greatly reducing the noise generated by the vibration. Moreover, since there are no fixed connecting parts between the compressor body and the outside world, there will be no problem of loosening of the connecting parts under severe vibration.

[0009] Preferably, a filter is connected to the top of the air inlet pipe, and a transmission pipe is connected to the top of the air outlet pipe. The transmission pipe is bent, and one end of the transmission pipe away from the air outlet pipe is located on the inner side of the filling box. When the impeller inside the compressor body rotates, it absorbs outside air from the air inlet pipe and discharges the compressed air to the outside from the air outlet pipe. The filter can filter particles in the incoming air to reduce the damage of dust and particles to the internal parts of the compressor body. The transmission pipe receives the compressed air and transmits it downward along the bent transmission pipe. The transmission pipe passes through a buffer solution. During the compression process, the air will cause the temperature of the compressed air to change due to high-speed centrifugal motion. Traditionally, another heat dissipation structure is also required to dissipate the heat of the compressed air, allowing the transmission pipe to pass through the buffer solution, allowing the buffer solution to perform heat exchange with the high-temperature transmission pipe, thereby effectively reducing the temperature of the compressed air. The amount of the buffer solution is large, and the outer wall of the filling box is made of metal, which can quickly perform heat exchange with the outside world to ensure the low temperature state of the buffer solution, thereby reducing the output temperature of the compressed air.

[0010] Preferably, the restraining assembly includes four chains 1, and the four chains 1 are respectively fixedly connected to the four corners of the bottom of the compressor body, and the other ends of the chains 1 are fixedly connected to the four corners of the bottom of the filling box. The four corners of the bottom of the compressor body are fixed by the four chains 1, and the chain 1 and the bottom of the filling box are fixed at the same time. In this way, the compressor body will be restricted in the central area of ​​the filling box by the buoyancy and the four-corner tension provided by the chain 1. When the compressor body moves in other directions, the chain 1 in the opposite direction will be straightened, so that the compressor body cannot move excessively. Through this arrangement, it is ensured that the compressor body is maintained within a smaller range, which ensures that the vibration generated by the compressor body can be absorbed by the buffer solution and will not excessively affect the connection between the compressor body and the outside world.

[0011] Preferably, a central pipe is fixedly connected to the bottom of the transmission pipe, a plurality of cooling pipes are fixedly connected to one side of the central pipe, the cooling pipes are located between the bottom of the filling box and the hollow bottle, a vertically arranged main exhaust pipe is fixedly connected between the ends of the plurality of cooling pipes, and the top of the main exhaust pipe is located above the compressor body. In order to improve the cooling effect on the compressed air, the transmitted compressed air is split by a plurality of cooling pipes, and at the same time, the total surface area of ​​the plurality of cooling pipes becomes larger, so that the contact surface between the compressed air and the buffer solution is increased, thereby improving the effect of cooling the compressed air.

[0012] Preferably, support arms are fixedly connected to both ends of the compressor body, and the support arms are arranged in a curved shape. The bottom of the support arms is fixedly connected to the outside of the filling box. The support arms are made of elastic material. In order to make the compressor body more stable during operation, a downward pressure is applied to the compressor body through four support arms. The curved support arms have elastic potential energy, and the compressor body is pressed by elastic potential energy instead of rigid pressure. Therefore, the compressor body can still rise and fall, thereby transmitting its own vibration to the buffer.

[0013] Preferably, there is a gap between the output end of the drive motor and the transmission shaft, and the output end of the drive motor and the transmission shaft are fixedly connected to a transmission belt. A cooling arm is fixedly connected between the bottom of the drive motor and the filling box. Since the compressor body is in a continuous moving process, in order to ensure normal transmission, a flexible transmission belt is used to connect the drive motor and the transmission shaft. In this way, even if the drive motor and the compressor body are not center-aligned, power can be transmitted normally. At the same time, the limiting chain will also limit the position of the compressor body, so that the transmission shaft of the compressor body does not directly contact the drive motor.

[0014] Preferably, a heat exchange copper tube is fixedly connected to the inside of the cooling arm, the bottom of the metal iron filings is located at the inner bottom of the filling box, and the top of the heat exchange copper tube is in contact with the outer side of the drive motor. The long-term high-speed rotation of the impeller in the compressor body causes the drive component, that is, the drive motor, to generate a higher temperature. In order to allow the compressor body to work for a long time, the heat exchange copper tube in the cooling arm can allow the drive motor and the coolant to perform efficient heat exchange, thereby reducing the operating temperature of the drive motor and allowing the drive motor to operate stably for a long time.

[0015] Preferably, a mutual transmission port is opened on one side of the filling box, and a secondary liquid tank is installed on the outer side of the mutual transmission port. A liquid pump connected to the inside is installed on the outer side of the secondary liquid tank, and the liquid pump is connected to the mutual transmission port. A water level monitor and a temperature sensor are arranged on the inner side of the filling box. Some buffer solution is stored in the secondary liquid tank. The liquid level in the filling box is monitored at all times by the water level monitor. When the buffer solution is consumed due to evaporation or other reasons, the buffer solution in the secondary liquid tank is injected into the filling box through the mutual transmission port by the liquid pump. The temperature of the filling box is monitored at all times by the temperature sensor. When the temperature of the internal buffer solution is too high, the secondary liquid tank exchanges the buffer solution inside itself with the buffer solution in the filling box, which can reduce the temperature of the buffer solution in the filling box in a short time. At the same time, the flowing buffer solution can also accelerate the heat dissipation rate of the buffer solution, and at the same time accelerate the heat exchange rate between the cooling pipe and the buffer solution.

[0016] Preferably, a plurality of spring telescopic rods are fixedly connected to the middle of the ground of the filling box, and the plurality of spring telescopic rods are arranged in a straight line and equidistantly. A second chain is fixedly connected between the top of the spring telescopic rod and the bottom of the compressor body. The spring telescopic rod and the second chain are used to increase the restraining effect on the compressor body. The second chain is kept straight, and the spring telescopic rod is in a pulled state. In this way, the compressor body can be effectively controlled at a lower liquid level, and the contact area between the compressor body and the buffer solution is increased, thereby improving the vibration transmission effect.

[0017] Preferably, a restraint pad is fixedly connected between the outer side of the compressor body and the filling box, the restraint pad is made of elastic material, a plurality of through holes are provided on the top surface of the restraint pad, and a notch is also provided on the surface of the restraint pad for the transmission pipe and the main drain pipe to pass through. The restraint pad is arranged below the liquid level of the buffer solution, so that most of the dust and other foreign matter from the outside will be isolated above the restraint pad, and at the same time, the vibration effect absorbed by the buffer solution will be blocked by the restraint pad, so that the top liquid level of the buffer solution will not fluctuate over a large range, reducing the problem of the buffer solution splashing out, and the through holes allow the buffer solution to pass normally.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. A centrifugal air compressor described in the present invention, through the setting of a filling box, a buffer solution is put into the filling box, and the buffer solution can be water or lubricating oil. Then the compressor body is put into the filling box, and the hollow bottle is used to provide sufficient buoyancy to the compressor body so that the compressor body can float on the filling box. At the same time, the restraining component restrains the compressor body so that the compressor body cannot move greatly, but can move within a small range. When the driving motor drives the transmission shaft and the internal impeller of the compressor body to rotate, the vibration generated will be absorbed by the buffer solution and converted into the shaking of the buffer solution. Through this setting, the vibration generated by the compressor body during operation can be greatly reduced, and the noise generated by the vibration can be greatly reduced. Moreover, since there are no fixed connecting parts between the compressor body and the outside world, there will be no problem of loosening of the connecting parts under severe vibration.

[0020] 2. The centrifugal air compressor described in the present invention absorbs external air from the air inlet pipe when the impeller inside the compressor body rotates, and discharges the compressed air outward from the air outlet pipe. The filter can filter particles in the incoming air to reduce the damage of dust and particles to the internal parts of the compressor body. The transmission pipe receives the compressed air and transmits it downward along the bent transmission pipe. The transmission pipe passes through the buffer solution. During the compression process, the air will increase its temperature due to high-speed centrifugal motion. Traditionally, another heat dissipation structure is required to dissipate the heat of the compressed air, so that the transmission pipe passes through the buffer solution, and the buffer solution performs heat exchange with the high-temperature transmission pipe, thereby effectively reducing the temperature of the compressed air. The buffer solution has a large amount, and the outer wall of the filling box is made of metal, so it can quickly perform heat exchange with the outside world to ensure the low temperature state of the buffer solution, thereby reducing the output temperature of the compressed air. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a stereogram of the present invention;

[0023] Figure 2 is a cross-sectional view of a filling box of the present invention;

[0024] Figure 3 is a stereogram of the hollow bottle and the cooling tube of the present invention;

[0025] Figure 4 is a three-dimensional diagram of the restraint pad of the present invention;

[0026] Figure 5 is a three-dimensional diagram of a compressor body of the present invention;

[0027] In the figure: 1. filling box; 2. compressor body; 3. auxiliary liquid tank; 4. main exhaust pipe; 5. support arm; 6. drive motor; 7. air inlet pipe; 8. filter; 9. cooling arm; 10. transmission pipe; 11. air outlet pipe; 12. transmission belt; 13. chain one; 14. hollow bottle; 15. spring telescopic rod; 16. mutual transmission port; 17. cooling pipe; 18. central pipe; 19. chain two; 20. restraint pad; 21. through hole. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] like Figures 1 to 3 As shown, a centrifugal air compressor described in an embodiment of the present invention comprises a filling box 1, the top of the filling box 1 is open, a compressor body 2 is placed inside the filling box 1, an air inlet pipe 7 and an air outlet pipe 11 are fixedly connected to the top of the compressor body 2, a driving motor 6 is arranged on the outside of the compressor body 2, an impeller group for centrifugal compressed air is arranged on the inside of the compressor body 2, a transmission shaft is fixedly connected to the middle of the impeller group, the transmission shaft penetrates to the outside of the compressor body 2, the driving motor 6 is used to drive the transmission shaft to rotate, a restraining component is arranged on the inside of the filling box 1, the restraining component is used to restrain the filling box 1 to reduce the movement amplitude of the filling box 1, and two symmetrically arranged hollow bottles 14 are fixedly connected to the bottom of the filling box 1;

[0030] When working, the traditional centrifugal air compressor uses the rotation of the impeller to suck the outside air into the interior, and compresses the air under the centrifugal effect. Due to the high-speed rotation of the internal impeller, the vibration and noise generated by the entire equipment are relatively large, and the bolts and other parts used to fix the centrifugal air compressor are easy to loosen;

[0031] Through the setting of the filling box 1, a buffer solution is put into the filling box 1. The buffer solution can be water or lubricating oil. Then the compressor body 2 is put into the filling box 1, and the hollow bottle 14 is used to provide sufficient buoyancy to the compressor body 2 so that the compressor body 2 can float on the filling box 1. At the same time, the restraining component restrains the compressor body 2, so that the compressor body 2 cannot move greatly, but can move within a small range. When the driving motor 6 drives the transmission shaft and the internal impeller of the compressor body 2 to rotate, the vibration generated will be absorbed by the buffer solution and converted into the shaking of the buffer solution. Through this setting, the vibration generated by the compressor body 2 during operation can be greatly reduced, thereby greatly reducing the noise generated by the vibration. Moreover, since there are no fixed connecting parts between the compressor body 2 and the outside world, there will be no problem of loosening of the connecting parts under severe vibration.

[0032] like Figures 1 to 3 As shown, the top of the air inlet pipe 7 is connected to a filter 8, the top of the air outlet pipe 11 is connected to a transmission pipe 10, the transmission pipe 10 is bent, and one end of the transmission pipe 10 away from the air outlet pipe 11 is located on the inner side of the filling box 1;

[0033] During operation, when the impeller inside the compressor body 2 rotates, it absorbs external air from the air inlet pipe 7 and discharges the compressed air to the outside from the air outlet pipe 11. The filter 8 can filter particles in the incoming air to reduce the damage of dust and particles to the internal parts of the compressor body 2. The transmission pipe 10 receives the compressed air and transmits it downward along the bent transmission pipe 10. The transmission pipe 10 passes through the buffer solution. Since the air will cause the temperature of the compressed air to change due to high-speed centrifugal motion during the compression process, it is traditionally necessary to set up another heat dissipation structure to dissipate the heat of the compressed air, allowing the transmission pipe 10 to pass through the buffer solution, allowing the buffer solution to perform heat exchange with the high-temperature transmission pipe 10, effectively reducing the temperature of the compressed air. The buffer solution has a large amount of buffer solution, and the outer wall of the filling box 1 is made of metal, which can quickly perform heat exchange with the outside world to ensure the low temperature state of the buffer solution, thereby reducing the output temperature of the compressed air.

[0034] like Figures 1 to 5 As shown, the restraining assembly includes four chains 13, and the four chains 13 are respectively fixed to the bottom of the compressor body 2 near four corners, and the other ends of the chains 13 are fixed to the four corners of the bottom of the filling box 1;

[0035] During operation, the four corners of the bottom of the compressor body 2 are fixed by four chains 13, and the chains 13 are fixedly connected to the bottom of the filling box 1, so that the compressor body 2 will be restricted in the central area of ​​the filling box 1 by the buoyancy and the four-corner pulling force provided by the chains 13. When the compressor body 2 moves in other directions, the chains 13 in the opposite direction will be stretched straight, so that the compressor body 2 cannot move excessively. Through this arrangement, it is ensured that the compressor body 2 is maintained in a smaller range, which ensures that the vibration generated by the compressor body 2 can be absorbed by the buffer and will not excessively affect the connection between the compressor body 2 and the outside world.

[0036] like Figures 1 to 5 As shown, a centralizing pipe 18 is fixedly connected to the bottom of the transmission pipe 10, and a plurality of cooling pipes 17 are fixedly connected to one side of the centralizing pipe 18. The cooling pipe 17 is located between the bottom of the filling box 1 and the hollow bottle 14. A vertically arranged main drain pipe 4 is fixedly connected between the ends of the plurality of cooling pipes 17, and the top of the main drain pipe 4 is located above the compressor body 2.

[0037] During operation, in order to improve the cooling effect of compressed air, the transmitted compressed air is split through multiple cooling tubes 17. At the same time, the total surface area of ​​the multiple cooling tubes 17 becomes larger, so that the contact area between the compressed air and the buffer solution is increased, thereby improving the effect of cooling the compressed air.

[0038] like Figures 1 to 5 As shown, both ends of the compressor body 2 are fixedly connected with support arms 5, the support arms 5 are arranged in a curved shape, the bottom of the support arms 5 is fixedly connected to the outer side of the filling box 1, and the support arms 5 are made of elastic material;

[0039] During operation, in order to make the compressor body 2 more stable during operation, a downward pressure is applied to the compressor body 2 through four support arms 5. The bent support arms 5 have elastic potential energy, which compresses the compressor body 2 through elastic potential energy instead of rigid pressure, so the compressor body 2 can still rise and fall, thereby transmitting its own vibration to the buffer.

[0040] like Figures 1 to 5 As shown, there is a gap between the output end of the drive motor 6 and the transmission shaft, and the output end of the drive motor 6 and the transmission shaft are fixedly connected to a transmission belt 12, and a cooling arm 9 is fixedly connected between the bottom of the drive motor 6 and the filling box 1;

[0041] During operation, since the compressor body 2 is in a continuous moving process, in order to ensure the normal transmission, a flexible transmission belt 12 is connected between the drive motor 6 and the drive shaft. In this way, even if the drive motor 6 and the compressor body 2 are not center-aligned, power can be transmitted normally. At the same time, the limiting chain 13 will also limit the position of the compressor body 2, so that the drive shaft of the compressor body 2 does not directly contact the drive motor 6.

[0042] like Figures 1 to 5 As shown, a heat exchange copper tube is fixedly connected to the interior of the cooling arm 9, the bottom of the metal iron filings is located at the inner bottom of the filling box 1, and the top of the heat exchange copper tube is in contact with the outer side of the driving motor 6;

[0043] During operation, the long-term high-speed rotation of the impeller in the compressor body 2 causes the driving component, that is, the driving motor 6, to generate a relatively high temperature. In order to allow the compressor body 2 to work for a long time, the heat exchange copper tube in the cooling arm 9 can allow the driving motor 6 and the coolant to perform efficient heat exchange, thereby reducing the operating temperature of the driving motor 6 and allowing the driving motor 6 to operate stably for a long time.

[0044] like Figures 1 to 5As shown, a mutual transmission port 16 is provided on one side of the filling box 1, and a secondary liquid tank 3 is installed on the outside of the mutual transmission port 16. A liquid pump connected to the inside is installed on the outside of the secondary liquid tank 3, and the liquid pump is connected to the mutual transmission port 16. A water level monitor and a temperature sensor are provided on the inside of the filling box 1;

[0045] During operation, some buffer solution is stored in the auxiliary liquid tank 3. The liquid level in the filling tank 1 is constantly monitored by a water level monitor. When the buffer solution is consumed due to evaporation or other reasons, the buffer solution in the auxiliary liquid tank 3 is injected into the filling tank 1 through the mutual transfer port 16 by a liquid pump. The temperature of the filling tank 1 is constantly monitored by a temperature sensor. When the temperature of the internal buffer solution is too high, the auxiliary liquid tank 3 exchanges the buffer solution inside itself with the buffer solution in the filling tank 1, which can reduce the temperature of the buffer solution in the filling tank 1 in a short time. At the same time, the flowing buffer solution can also accelerate the heat dissipation rate of the buffer solution, and at the same time accelerate the heat exchange rate between the cooling tube 17 and the buffer solution.

[0046] like Figures 1 to 5 As shown, a plurality of spring telescopic rods 15 are fixedly connected to the middle of the ground of the filling box 1, and the plurality of spring telescopic rods 15 are arranged in a straight line and equidistantly, and a chain 19 is fixedly connected between the top of the spring telescopic rod 15 and the bottom of the compressor body 2;

[0047] During operation, the restraining effect on the compressor body 2 is increased by the spring telescopic rod 15 and the chain 19. The chain 19 remains stretched straight, while the spring telescopic rod 15 is in a pulled state. This can effectively control the compressor body 2 at a lower liquid level, increase the contact area between the compressor body 2 and the buffer, and thus improve the vibration transmission effect.

[0048] like Figures 1 to 5 As shown, a restraining pad 20 is fixedly connected between the outer side of the compressor body 2 and the filling box 1. The restraining pad 20 is made of elastic material. A plurality of through holes 21 are provided on the top surface of the restraining pad 20. A notch is also provided on the surface of the restraining pad 20 for the transmission pipe 10 and the main exhaust pipe 4 to pass through.

[0049] During operation, the restraining pad 20 is arranged below the liquid surface of the buffer solution, so that foreign matter such as dust from the outside will be mostly isolated above the restraining pad 20. At the same time, the vibration effect absorbed by the buffer solution will be blocked by the restraining pad 20, so that the top liquid surface of the buffer solution will not fluctuate over a large range, reducing the problem of the buffer solution splashing out, and the through hole 21 allows the buffer solution to pass normally.

[0050] During operation, a buffer solution is put into the filling box 1 through the setting of the filling box 1. The buffer solution can be water or lubricating oil. Then, the compressor body 2 is put into the filling box 1, and the hollow bottle 14 is used to provide the compressor body 2 with sufficient buoyancy so that the compressor body 2 can float on the filling box 1. At the same time, the restraining component restrains the compressor body 2 so that the compressor body 2 cannot move significantly, but can move within a small range. When the driving motor 6 drives the transmission shaft and the internal impeller of the compressor body 2 to rotate, the vibration generated will be absorbed by the buffer solution and converted into the shaking of the buffer solution. Through this setting, the vibration generated by the compressor body 2 during operation can be greatly reduced, thereby greatly reducing the noise generated by the vibration. Moreover, since there are no fixed connecting parts between the compressor body 2 and the outside world, there will be no problem of loosening of the connecting parts under severe vibration.

[0051] During operation, when the impeller inside the compressor body 2 rotates, it absorbs external air from the air inlet pipe 7 and discharges the compressed air to the outside from the air outlet pipe 11. The filter 8 can filter particles in the incoming air to reduce the damage of dust and particles to the internal parts of the compressor body 2. The transmission pipe 10 receives the compressed air and transmits it downward along the bent transmission pipe 10. The transmission pipe 10 passes through the buffer solution. During the compression process, the air will cause the temperature of the compressed air to change due to high-speed centrifugal motion. Traditionally, another heat dissipation structure is required to dissipate the heat of the compressed air, so that the transmission pipe 10 passes through the buffer solution, and the buffer solution is allowed to perform heat exchange with the high-temperature transmission pipe 10, effectively reducing the temperature of the compressed air. The amount of the buffer solution is large, and the outer wall of the filling box 1 is made of metal, which can quickly perform heat exchange with the outside world to ensure the low temperature state of the buffer solution, thereby reducing the output temperature of the compressed air.

[0052] The four corners of the bottom of the compressor body 2 are fixed by four chains 13, and the chains 13 are fixedly connected to the bottom of the filling box 1, so that the compressor body 2 is restricted to the central area of ​​the filling box 1 by the buoyancy and the four-corner pulling force provided by the chains 13. When the compressor body 2 moves in other directions, the chains 13 in the opposite direction will be stretched straight, so that the compressor body 2 cannot move excessively. Through this arrangement, it is ensured that the compressor body 2 is maintained in a small range, which ensures that the vibration generated by the compressor body 2 can be absorbed by the buffer, and at the same time will not excessively affect the connection between the compressor body 2 and the outside world;

[0053] In order to improve the cooling effect of the compressed air, the transmitted compressed air is split by a plurality of cooling tubes 17, and at the same time, the total surface area of ​​the plurality of cooling tubes 17 becomes larger, so that the contact surface between the compressed air and the buffer solution is increased, thereby improving the cooling effect of the compressed air;

[0054] In order to make the compressor body 2 more stable during operation, a downward pressure is applied to the compressor body 2 through four support arms 5. The bent support arms 5 have elastic potential energy, and the compressor body 2 is pressed by elastic potential energy instead of rigid pressure, so the compressor body 2 can still rise and fall, thereby transmitting its own vibration to the buffer;

[0055] Since the compressor body 2 is in a process of continuous movement, in order to ensure normal transmission, a flexible transmission belt 12 is connected between the drive motor 6 and the transmission shaft, so that even if the drive motor 6 and the compressor body 2 are not aligned in the center, the power can be transmitted normally, and at the same time, the limiting chain 13 will also limit the position of the compressor body 2, so that the transmission shaft of the compressor body 2 does not directly contact the drive motor 6;

[0056] The long-term high-speed rotation of the impeller in the compressor body 2 causes the driving part, that is, the driving motor 6, to generate a relatively high temperature. In order to allow the compressor body 2 to work for a long time, the heat exchange copper tube in the cooling arm 9 allows the driving motor 6 and the coolant to perform efficient heat exchange, thereby reducing the operating temperature of the driving motor 6 and allowing the driving motor 6 to operate stably for a long time;

[0057] Part of the buffer solution is stored in the auxiliary liquid tank 3. The liquid level in the filling tank 1 is constantly monitored by a water level monitor. When the buffer solution is consumed due to evaporation or other reasons, the buffer solution in the auxiliary liquid tank 3 is injected into the filling tank 1 through the mutual transfer port 16 by a liquid pump. The temperature of the filling tank 1 is constantly monitored by a temperature sensor. When the temperature of the internal buffer solution is too high, the auxiliary liquid tank 3 exchanges the buffer solution in itself with the buffer solution in the filling tank 1, which can reduce the temperature of the buffer solution in the filling tank 1 in a short time. At the same time, the flowing buffer solution can also accelerate the heat dissipation speed of the buffer solution, and at the same time accelerate the heat exchange speed between the cooling pipe 17 and the buffer solution.

[0058] The spring telescopic rod 15 and the second chain 19 increase the restraining effect on the compressor body 2. The second chain 19 is kept straight, and the spring telescopic rod 15 is in a pulled state, so that the compressor body 2 can be effectively controlled at a lower liquid level, and the contact surface between the compressor body 2 and the buffer is increased, so that the vibration transmission effect can be improved;

[0059] The restraining pad 20 is arranged below the liquid surface of the buffer solution, so that foreign matter such as dust from the outside will be mostly isolated above the restraining pad 20. At the same time, the vibration effect absorbed by the buffer solution will be blocked by the restraining pad 20, so that the top liquid surface of the buffer solution will not fluctuate over a large range, reducing the problem of the buffer solution splashing out, and the through hole 21 allows the buffer solution to pass normally.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A centrifugal air compressor, characterized in that: The invention comprises a filling box (1), the top of the filling box (1) is open, a compressor body (2) is placed inside the filling box (1), an air inlet pipe (7) and an air outlet pipe (11) are fixedly connected to the top of the compressor body (2), a driving motor (6) is arranged on the outside of the compressor body (2), an impeller group for centrifugally compressing air is arranged on the inside of the compressor body (2), a transmission shaft is fixedly connected to the middle of the impeller group, the transmission shaft passes through the outside of the compressor body (2), the driving motor (6) is used to drive the transmission shaft to rotate, a restraining component is arranged on the inside of the filling box (1), the restraining component is used to restrain the filling box (1) to reduce the movement range of the filling box (1), and two symmetrically arranged hollow bottles (14) are fixedly connected to the bottom of the filling box (1); There is a gap between the output end of the drive motor (6) and the transmission shaft, and a transmission belt (12) is fixedly connected between the output end of the drive motor (6) and the transmission shaft, and a cooling arm (9) is fixedly connected between the bottom of the drive motor (6) and the filling box (1); A heat exchange copper tube is fixedly connected to the interior of the cooling arm (9), the bottom of the metal iron filings is located at the inner bottom of the filling box (1), and the top of the heat exchange copper tube is in contact with the outer side of the driving motor (6).

2. A centrifugal air compressor according to claim 1, characterized in that: The top of the air inlet pipe (7) is connected to a filter (8), and the top of the air outlet pipe (11) is connected to a transmission pipe (10). The transmission pipe (10) is arranged in a bent state, and one end of the transmission pipe (10) away from the air outlet pipe (11) is located on the inner side of the filling box (1).

3. A centrifugal air compressor according to claim 2, characterized in that: The restraining assembly comprises four chains (13), the four chains (13) being respectively fixed to the four corners of the bottom of the compressor body (2), and the other ends of the chains (13) being fixed to the four corners of the bottom of the filling box (1).

4. A centrifugal air compressor according to claim 3, characterized in that: A central pipe (18) is fixedly connected to the bottom of the transmission pipe (10), a plurality of cooling pipes (17) are fixedly connected to one side of the central pipe (18), the cooling pipes (17) are located between the bottom of the filling box (1) and the hollow bottle (14), a vertically arranged main drain pipe (4) is fixedly connected between the ends of the plurality of cooling pipes (17), and the top of the main drain pipe (4) is located above the compressor body (2).

5. A centrifugal air compressor according to claim 4, characterized in that: Support arms (5) are fixedly connected to both ends of the compressor body (2); the support arms (5) are arranged in a curved shape; the bottom of the support arms (5) is fixedly connected to the outside of the filling box (1); and the support arms (5) are made of elastic material.

6. A centrifugal air compressor according to claim 5, characterized in that: A mutual transfer port (16) is provided on one side of the filling box (1), an auxiliary liquid tank (3) is installed on the outside of the mutual transfer port (16), a liquid pump connected to the inside is installed on the outside of the auxiliary liquid tank (3), and the liquid pump is connected to the mutual transfer port (16). A water level monitor and a temperature sensor are arranged on the inside of the filling box (1).

7. A centrifugal air compressor according to claim 6, characterized in that: A plurality of spring telescopic rods (15) are fixedly connected to the middle of the ground of the filling box (1), and the plurality of spring telescopic rods (15) are arranged in a straight line and equidistantly, and a second chain (19) is fixedly connected between the top of the spring telescopic rod (15) and the bottom of the compressor body (2).

8. A centrifugal air compressor according to claim 7, characterized in that: A restraining pad (20) is fixedly connected between the outer side of the compressor body (2) and the filling box (1); the restraining pad (20) is made of elastic material, a plurality of through holes (21) are provided on the top surface of the restraining pad (20), and a notch is also provided on the surface of the restraining pad (20) for the transmission pipe (10) and the main exhaust pipe (4) to pass through.

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