Anode rotor of air compressor with cooling function

Abstract

The invention discloses an air compressor anode rotor with a cooling function, which relates to the technical field of air compressor rotors. Its technical highlights include an anode rotating shaft, an anode module is fixed to the middle part of the anode rotating shaft, rotating connecting parts are arranged on both sides of the outer wall of the anode rotating shaft, and a guide cooling part is arranged at one end of the anode rotating shaft; the rotating connecting part includes a coolant injection bin rotatably installed on the outer wall of the anode rotating shaft, the upper part of the outer wall of the coolant injection bin is connected with a coolant external connecting part, and a coolant cavity is opened inside the coolant injection bin. The technical effect is that the continuous supply of coolant during the rotation process is realized by the arrangement of the coolant injection bin, and the cooling of the rotor contact point is realized by means of the rotor cooling channel, and the cooling of the middle part is realized by the design of the air filling part and the air flow hole, and the gradual spiral design of the rotor cooling channel is cooperated to avoid the coolant being continuously located in the outer ring, which causes the rise of the coolant temperature.

Description

Technical Field

[0001] The invention relates to the technical field of air compressor rotors, in particular to an air compressor anode rotor with a cooling function. Background Art

[0002] During the operation of the air compressor, the anode rotor plays an extremely critical role. When the air compressor is working, the anode rotor is in a high-speed rotation state, frequently contacts with a variety of working media, and undergoes complex energy exchanges and physical reactions. As industrial production continues to increase the performance requirements of air compressors, their operating conditions are becoming increasingly complex and harsh. For example, in some large-scale chemical production, metallurgical manufacturing, or high-intensity compressed air supply scenarios, air compressors often need to operate continuously for a long time and withstand large pressure loads.

[0003] Under such high-intensity operating conditions, the anode rotor faces severe heat dissipation challenges. Due to the internal structural characteristics of the rotor and the matching relationship with surrounding components, it is difficult to dissipate heat quickly and effectively, which makes the anode rotor prone to overheating. Excessive temperature will significantly change the physical properties of the rotor material, causing its mechanical properties such as hardness and toughness to decrease, thereby greatly increasing the friction coefficient between the rotor and other matching parts, causing damage to the rotor and affecting the service life of the rotor. Therefore, an anode rotor that can be cooled in time is needed to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an air compressor anode rotor with a cooling function, which can achieve timely cooling of the rotor, thereby increasing the service life of the rotor.

[0005] To achieve the above object, the present invention provides the following technical solution: an air compressor anode rotor with cooling function, comprising an anode rotating shaft, an anode module is fixed to the middle of the anode rotating shaft, both sides of the outer wall of the anode rotating shaft are provided with a rotating connecting portion, and one end of the anode rotating shaft is provided with a flow guide cooling portion;

[0006] The rotating connecting part comprises a cooling liquid injection chamber rotatably mounted on the outer wall of the anode rotating shaft, the upper part of the outer wall of the cooling liquid injection chamber is connected with the cooling liquid external connecting part, a cooling liquid cavity is provided inside the cooling liquid injection chamber, a cooling liquid flow groove is provided on the outer wall of the anode rotating shaft and corresponding to the cooling liquid injection chamber, a cooling liquid linear flow channel is provided on one side of the inner side of the cooling liquid flow groove, and a rotor cooling flow channel is provided inside the anode module for cooling the anode module;

[0007] The flow guiding cooling part comprises a groove formed at one end of the anode rotating shaft, and a plurality of air flow holes are formed inside the groove;

[0008] The two ends of the rotor cooling channel are respectively connected to two coolant linear channels for conveying the coolant.

[0009] Preferably, a sealing portion is provided at the contact point between the inner ring of the coolant injection bin and the anode shaft, for sealing the contact point between the inner ring of the coolant injection bin and the anode shaft to prevent the coolant from flowing out.

[0010] Preferably, the rotor cooling channel is arranged in a gradual spiral shape, and the spiral diameter of the rotor cooling channel switches between high and low.

[0011] Preferably, a plurality of the air flow holes are arranged in a circular array, and the air flow holes extend to the other end of the anode shaft.

[0012] Preferably, a fixing seat is provided on the inner side of the groove and on one side of the air flow hole, and an air filling part is fixedly connected to one end of the fixing seat.

[0013] Preferably, the air filling portion is designed as a quarter spherical surface, and a fixing screw is inserted into one side of the fixing seat, and the fixing screw is threadedly connected to the anode rotating shaft.

[0014] Preferably, the outer wall of the anode module is provided with a plurality of spiral teeth for engaging with the cathode rotor, and the plurality of spiral teeth are evenly distributed on the outer wall of the anode module.

[0015] Preferably, both ends of the anode shaft are chamfered with a chamfer angle of forty-five degrees to reduce stress concentration during rotation.

[0016] Preferably, the depth of the coolant flow groove is one third of the radius of the anode shaft, so as to ensure the stability of the overall structure of the anode shaft.

[0017] Compared with the prior art, the present invention provides an air compressor anode rotor with a cooling function, which has the following beneficial effects: through the setting of the coolant injection bin, a continuous supply of coolant is achieved during the rotation process, and the rotor contact is cooled with the help of the rotor cooling channel. The design of the air filling part and the air flow hole is utilized to achieve cooling of the middle part, and the gradual spiral design of the rotor cooling channel is used to avoid the coolant being continuously located in the outer ring, causing the coolant temperature to rise, resulting in a decrease in the cooling effect and affecting the overall cooling effect. At the same time, it also achieves a faster diffusion of the central cooling effect, better improves the cooling performance of the present invention, thereby reducing the overall wear rate and increasing the service life of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention in which the coolant injection bin is removed;

[0020] Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the morphological structure of the rotor cooling channel in the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the coolant injection bin in the present invention.

[0024] In the figure: 1, anode shaft; 11, anode module;

[0025] 2. Coolant injection chamber; 21. Coolant external connection part; 22. Coolant flow groove; 23. Coolant linear flow channel; 24. Rotor cooling flow channel; 25. Coolant cavity; 26. Sealing part;

[0026] 3. Groove; 31. Air flow hole; 32. Fixed seat; 33. Air filling part; 34. Fixing screw. DETAILED DESCRIPTION

[0027] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0028] See also Figure 1-6 , the present invention provides a technical solution for an air compressor anode rotor with a cooling function:

[0029] Embodiment 1, an air compressor anode rotor with cooling function, comprises an anode shaft 1, an anode module 11 is fixed to the middle of the anode shaft 1, both sides of the outer wall of the anode shaft 1 are provided with a rotating connecting portion, and one end of the anode shaft 1 is provided with a flow guide cooling portion;

[0030] The rotating connecting part includes a coolant injection bin 2 rotatably mounted on the outer wall of the anode shaft 1, a coolant external connecting part 21 is connected to the upper part of the outer wall of the coolant injection bin 2, a coolant cavity 25 is provided inside the coolant injection bin 2, a coolant flow groove 22 is provided on the outer wall of the anode shaft 1 and corresponding to the coolant injection bin 2, a coolant linear flow channel 23 is provided on one side of the inner part of the coolant flow groove 22, a rotor cooling flow channel 24 is provided inside the anode module 11 for cooling the anode module 11, one of the coolant external connecting parts 21 can extend to the outside of the air compressor and be connected to the external coolant supply end, and the other coolant external connecting part 21 can extend to the outside of the air compressor and be connected to the external coolant recovery part, the coolant supply and recovery are conventional technologies, and will not be described in detail in the present invention;

[0031] The flow guide cooling part includes a groove 3 opened at one end of the anode rotating shaft 1, a plurality of air flow holes 31 are opened inside the groove 3, a fixing seat 32 is arranged inside the groove 3 and on one side of the air flow holes 31, and an air injection part 33 is fixedly connected to one end of the fixing seat 32.

[0032] A sealing portion 26 is provided at the contact point between the inner circle of the coolant injection bin 2 and the anode shaft 1, which is used to seal the contact point between the inner circle of the coolant injection bin 2 and the anode shaft 1 to prevent the coolant from flowing out. The two ends of the rotor cooling channel 24 are respectively connected to two coolant straight channels 23 for conveying the coolant. The rotor cooling channel 24 is a gradual spiral setting, and the spiral circle diameter of the rotor cooling channel 24 is switched high and low. The switching of the circle diameter can avoid the coolant from continuously contacting the high temperature of the anode module 11, causing the coolant temperature to rise too quickly, affecting the subsequent cooling effect.

[0033] In the second embodiment, a plurality of air flow holes 31 are arranged in a circular array, and the air flow holes 31 are connected to the other end of the anode shaft 1. The through design can realize the cooling of the anode shaft 1 and the inside of the anode module 11. The air filling part 33 is designed as a quarter spherical surface, and a fixing screw 34 is inserted on one side of the fixing seat 32. The fixing screw 34 is threadedly connected to the anode shaft 1 for fixing the air filling part 33. The fixing screw 34 is designed to fill air into the air flow hole 31 during the rotation of the anode shaft 1, thereby accelerating the gas flow rate in the air flow hole 31, thereby improving the cooling efficiency of the inside of the anode shaft 1. It should be noted that the quarter spherical surface design is for better air filling, and is not limited to this shape, as long as the purpose of air filling can be met;

[0034] The outer wall of the anode module 11 is provided with a plurality of spiral teeth for meshing with the cathode rotor. The plurality of spiral teeth are evenly distributed on the outer wall of the anode module 11. Both ends of the anode shaft 1 are provided with chamfers, and the chamfer angle is 45 degrees, which is used to reduce stress concentration during rotation. When subjected to various forces such as torque, radial force and axial force during operation, if the end of the shaft is at a right angle, under the action of these forces, the stress will be highly concentrated at the edge. Just like cracks are prone to appear at the corners of a wall, the right-angle edge is a "sensitive point" of stress. The chamfer can evenly distribute this stress to an inclined surface, reducing the peak stress. For example, at the end of a shaft subjected to bending force, if there is a chamfer, the stress can gradually change along the chamfer surface, avoiding fatigue cracks caused by excessive local stress, thereby extending the service life of the shaft. The depth of the coolant flow groove 22 is one-third of the radius of the anode shaft 1, which is used to ensure the stability of the overall structure of the anode shaft 1.

[0035] When used specifically, the present invention is used as an anode rotor of an air compressor with a cooling function. When the present invention is working, the coolant supply end supplies liquid to one of the coolant external connecting parts 21, and the coolant enters the coolant flow groove 22 and the coolant cavity 25. The coolant further flows from one of the coolant straight flow channels 23 to the rotor cooling channel 24, so as to realize the continuous supply of coolant during the rotation process. When the coolant flows through the rotor cooling channel 24, the anode module 11 can be cooled, and the wear of the contact end caused by overheating during the high-speed rotation process is avoided, thereby affecting the overall service life. At the same time, during the rotation process, due to the design of the air filling part 33, air can be filled into the air flow hole 31, so that the air circulation in the air flow hole 31 can be accelerated, thereby improving the cooling of the anode shaft 1 and the anode module 11. Since the air flow hole 31 is located at the anode The middle part of the anode shaft 1 is cooled first and also the center of the anode module 11. At this time, in conjunction with the gradual spiral setting of the rotor cooling channel 24, when the coolant is at the large circle diameter and is close to the outside of the anode module 11, the cooling of the outer circle of the anode module 11 can be completed, and after cooling, it is transported to the small circle diameter, which is also closer to the center of the anode shaft 1 and the anode module 11. Since the center is cooled by the gas flowing through the air flow holes 31, the temperature at the center is relatively low, so the relatively low temperature of the center is used to cool the coolant flowing through, and the cooled coolant can flow to the large circle diameter again to cool the anode module 11 again, and repeat in sequence to achieve heat exchange in the center, avoid the coolant being continuously in the outer circle, causing the coolant temperature to rise, resulting in the attenuation of the cooling effect, affecting the overall cooling effect, and at the same time, also achieving a faster diffusion of the center cooling effect.

[0036] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. An air compressor anode rotor with a cooling function, comprising an anode shaft (1), an anode module (11) being fixed to the middle of the anode shaft (1), characterized in that: Rotating connecting parts are provided on both sides of the outer wall of the anode rotating shaft (1), and a flow guiding cooling part is provided at one end of the anode rotating shaft (1); The rotating connecting portion comprises a cooling liquid injection chamber (2) rotatably mounted on the outer wall of the anode rotating shaft (1); the upper portion of the outer wall of the cooling liquid injection chamber (2) is connected to a cooling liquid external connecting portion (21); a cooling liquid cavity (25) is provided inside the cooling liquid injection chamber (2); a cooling liquid flow groove (22) is provided on the outer wall of the anode rotating shaft (1) at a position corresponding to the cooling liquid injection chamber (2); a cooling liquid linear flow channel (23) is provided on one side of the inner side of the cooling liquid flow groove (22); and a rotor cooling flow channel (24) is provided inside the anode module (11) for cooling the anode module (11); The flow-guiding cooling portion comprises a groove (3) formed at one end of the anode rotating shaft (1), and a plurality of air flow holes (31) are formed inside the groove (3); The rotor cooling channel (24) is configured in a gradual spiral shape, and the spiral diameter of the rotor cooling channel (24) is switched between high and low. The switching of the high and low diameters can prevent the coolant from continuously contacting the high temperature portion of the anode module (11), causing the coolant temperature to rise too quickly, thereby affecting the subsequent cooling effect. The plurality of air flow holes (31) are arranged in a circular array, and the air flow holes (31) extend through to the other end of the anode rotating shaft (1); A fixing seat (32) is provided on the inner side of the groove (3) and on one side of the air flow hole (31), and one end of the fixing seat (32) is fixedly connected to an air injection portion (33); The air flow hole (31) is located in the middle of the anode rotating shaft (1).

2. The air compressor anode rotor with cooling function according to claim 1, characterized in that: A sealing portion (26) is provided at the contact point between the inner ring of the coolant injection chamber (2) and the anode rotating shaft (1).

3. The air compressor anode rotor with cooling function according to claim 1, characterized in that: Both ends of the rotor cooling channel (24) are respectively connected to two coolant linear channels (23) for conveying the coolant.

4. The air compressor anode rotor with cooling function according to claim 1, characterized in that: The outer wall of the anode module (11) is provided with a plurality of spiral teeth for meshing with the cathode rotor, and the plurality of spiral teeth are evenly distributed on the outer wall of the anode module (11).

5. The air compressor anode rotor with cooling function according to claim 1, characterized in that: Both ends of the anode rotating shaft (1) are provided with chamfers, and the chamfer angle is 45 degrees, so as to reduce stress concentration during the rotation process.

6. The air compressor anode rotor with cooling function according to claim 1, characterized in that: The depth of the coolant flow groove (22) is one third of the radius of the anode shaft (1), and is used to ensure the stability of the overall structure of the anode shaft (1).

7. The air compressor anode rotor with cooling function according to claim 1, characterized in that: The air injection portion (33) is designed as a quarter spherical surface, and a fixing screw (34) is inserted into one side of the fixing seat (32), and the fixing screw (34) is threadedly connected to the anode rotating shaft (1).

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