A centrifugal air compressor

Abstract

The utility model discloses a centrifugal air compressor, including air compressor body, the air compressor body is installed with exhaust pipe, the airflow carding support mechanism is arranged to the exhaust pipe outside, the airflow carding support mechanism includes the upper fixed ring of covering exhaust pipe surface and bottom surface, and the bottom both sides of lower fixed ring all are fixedly set with adjusting support subassembly, the adjusting support subassembly bottom is provided with the support foot, and the support foot is fixed through the anchor bolt. The centrifugal air compressor, the rigidity and stability of overall structure are strengthened, the fixed support structure of exhaust pipe is formed, makes exhaust pipe when carrying out high -speed exhaust, avoids the problem such as pipeline weld fatigue, flange sealing failure caused by the large amplitude shaking or vibration, reduces the interference of vibration to the surrounding equipment simultaneously, prolongs the service life of exhaust pipe and related components, improves the security and stability of system operation.

Description

Technical Field

[0001] This utility model relates to the field of air compressors, specifically a centrifugal air compressor. Background Technology

[0002] The working principle of a centrifugal air compressor is as follows: the motor drives the compressor rotor to rotate at high speed. The impeller on the rotor generates centrifugal force as it rotates, which accelerates the air drawn in from the air inlet and throws it toward the diffuser on the outer periphery of the impeller. The high-speed airflow slows down and increases in pressure in the diffuser, and then enters the volute. Under the guidance of the volute, it is further gathered, decelerated and pressurized, and finally obtains compressed air that meets the pressure and flow requirements.

[0003] The compressor exhaust process involves periodic pressure fluctuations (airflow pulsation). When the pulsation frequency approaches or coincides with the natural frequency of the exhaust pipe, resonance occurs, leading to a sharp amplification of the vibration amplitude. Long-term vibration can cause cracks in pipe welds, flange seal failure (air leakage), and even pipe fatigue fracture. Utility Model Content

[0004] The purpose of this invention is to provide a centrifugal air compressor to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, a centrifugal air compressor is provided, including an air compressor body, an exhaust pipe installed on the air compressor body, and an airflow combing support mechanism provided on the outside of the exhaust pipe. The airflow combing support mechanism includes an upper fixing hoop and a lower fixing hoop covering the surface and bottom of the exhaust pipe, and an adjustment support assembly is fixedly provided on both sides of the bottom of the lower fixing hoop. The bottom of the adjustment support assembly is provided with a support foot, and the support foot is fixed by an anchor bolt.

[0006] Furthermore, the airflow combing support mechanism also includes a connecting seat and an airflow combing assembly, and both ends of the upper and lower fixing hoops are provided with connecting seats, and the two sets of connecting seats are fixed together by bolts.

[0007] Furthermore, the adjustment support assembly also includes a docking frame, a docking seat, an adjustment space, and studs. The bottom of the docking seat is fixedly provided with a support foot, and the support foot is provided with two sets of anchor bolt mounting slots.

[0008] Furthermore, the top of the docking frame is fixedly connected to a connecting seat, and its bottom is inserted into the interior of the docking seat. Two sets of U-shaped adjustment spaces are provided on the side wall of the docking seat, and studs are inserted inside the interior of both sets of adjustment spaces.

[0009] Furthermore, the stud passes through the adjustment space and is fixed by the nut, and the depth of the docking bracket inserted into the docking seat is adjusted and fixed by the stud, the nut and the adjustment space.

[0010] Furthermore, the airflow combing assembly includes a combing plate, a deceleration buffer plate, combing holes, and a positioning ring. The airflow combing assembly is installed inside the exhaust pipe. The surface of the combing plate is covered with a deceleration buffer plate, and multiple sets of combing holes are equidistantly opened on both the deceleration buffer plate and the combing plate. The deceleration buffer plate and the combing holes on the combing plate are connected.

[0011] Furthermore, the deceleration buffer is a circular structure made of rubber, and a positioning ring is connected to the bottom of the comb plate, and the positioning ring is fixedly connected to the inner circumference of the exhaust pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This solution fixes the upper and lower fixing clamps to the upper and lower sides of the exhaust pipe respectively, which can form a stable clamp on the exhaust pipe from the radial direction and effectively limit its radial displacement. Then, the upper and lower fixing clamps are integrated into one unit through the connecting seat, which enhances the rigidity and stability of the overall structure. This forms a fixed support structure for the exhaust pipe, so that when the exhaust pipe is exhausting at high speed, it avoids problems such as pipe weld fatigue and flange seal failure caused by large shaking or vibration. At the same time, it reduces the interference of vibration on surrounding equipment, extends the service life of the exhaust pipe and related components, and improves the safety and stability of system operation. 2. This solution disperses the high-speed airflow in the exhaust pipe into multiple orderly airflows. It can break up eddies and streamline the flow field through the guiding effect of the combing holes, reducing the vibration caused by irregular airflow impacting the inner wall of the pipe. It can also absorb the impact energy of the airflow by utilizing the elastic properties of the rubber deceleration buffer, further weakening the amplitude of airflow pulsation. The equidistant distribution of the combing holes can ensure uniform airflow distribution, prevent sudden changes in local airflow pressure, reduce vibration inducing factors from the source, and ultimately improve the stability of the exhaust pipe operation and reduce the impact of vibration on the pipe and surrounding components. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a centrifugal air compressor; Figure 2 This is a schematic diagram of the airflow combing support mechanism of this utility model; Figure 3 This is a top view of the structural flow combing support mechanism of this utility model; Figure 4 This is a cross-sectional view of the structural flow combing support mechanism of this utility model; Figure 5 for Figure 4 Side view.

[0014] The following labels are used in the diagram: 100, air compressor body; 200, exhaust pipe; 300, airflow combing support mechanism; 31, upper fixing clamp; 32, lower fixing clamp; 33, connecting seat; 34, adjusting support assembly; 341, docking frame; 342, docking seat; 343, adjusting space; 344, stud; 345, support foot; 35, airflow combing assembly; 351, combing plate; 352, deceleration buffer plate; 353, combing hole; 354, positioning ring. Detailed Implementation

[0015] Please see Figure 1-5 This utility model provides a centrifugal air compressor, including an air compressor body 100, an exhaust pipe 200 installed on the air compressor body 100, an airflow combing support mechanism 300 provided on the outside of the exhaust pipe 200, the airflow combing support mechanism 300 includes an upper fixing hoop 31 and a lower fixing hoop 32 covering the surface and bottom surface of the exhaust pipe 200, and an adjustment support assembly 34 is fixedly provided on both sides of the bottom of the lower fixing hoop 32, and a support foot 345 is provided at the bottom of the adjustment support assembly 34, and the support foot 345 is fixed by anchor bolts.

[0016] Working principle: The upper fixing hoop 31 and the lower fixing hoop 32 are fixed on the upper and lower sides of the exhaust pipe 200 respectively, and then fixed by the connecting seat 33. At this time, the adjusting support component 34 at the bottom of the connecting seat 33 is provided with a support foot 345, which is fixed by the anchor bolt; thus forming a fixed support structure for the exhaust pipe 200, so that the exhaust pipe 200 will not shake or vibrate significantly when it is exhausting at high speed. Even under resonance, the vibration amplitude will not increase sharply, thus avoiding fatigue fracture and leakage of the exhaust pipe 200.

[0017] As a preferred embodiment, the airflow combing support mechanism 300 also includes a connecting seat 33 and an airflow combing assembly 35, and both ends of the upper fixing hoop 31 and the lower fixing hoop 32 are provided with connecting seats 33, and the two sets of connecting seats 33 are fixed together by bolts.

[0018] like Figure 2-5As shown: By fixing the upper fixing clamp 31 and the lower fixing clamp 32 to the upper and lower sides of the exhaust pipe 200 respectively, a stable clamp can be formed on the exhaust pipe 200 radially, effectively limiting its radial displacement; then, the upper and lower fixing clamps are integrated into one by the connecting seat 33, enhancing the rigidity and stability of the overall structure; the adjusting support component 34 and the bottom support foot 345 at the bottom of the connecting seat 33, together with the anchor bolt fixing method, not only achieve axial stable support for the exhaust pipe 200, but also adapt to the flatness of the installation surface by adjusting the support component 34, ensuring that the entire fixing structure is evenly stressed. Through the multi-layered and all-round fixing method, the vibration transmission of the exhaust pipe 200 during high-speed exhaust can be significantly reduced, avoiding problems such as pipe weld fatigue and flange seal failure caused by large-scale shaking or vibration. At the same time, it reduces the interference of vibration on surrounding equipment, extends the service life of the exhaust pipe 200 and related components, and improves the safety and stability of system operation.

[0019] The adjustment support assembly 34 also includes a docking frame 341, a docking seat 342, an adjustment space 343, and a stud 344. The bottom of the docking seat 342 is fixedly provided with a support foot 345, and the support foot 345 is provided with two sets of anchor bolt mounting slots.

[0020] The top of the docking frame 341 is fixedly connected to the connecting seat 33, and its bottom is inserted into the interior of the docking seat 342. Two sets of U-shaped adjustment spaces 343 are provided on the side wall of the docking seat 342, and studs 344 are inserted inside the two sets of adjustment spaces 343.

[0021] The stud 344 passes through the adjustment space 343 and is fixed by the nut. The depth of the mating bracket 341 inserted into the mating seat 342 is adjusted and fixed by the stud 344, the nut and the adjustment space 343.

[0022] The docking bracket 341 and the docking seat 342 are connected by a plug-in joint. Combined with the two sets of U-shaped adjustment spaces 343 on the side wall and the studs 344 inserted therein, the depth of the docking bracket 341 inserted into the docking seat 342 can be flexibly adjusted, thereby precisely adjusting the height of the entire fixed support structure. This adapts to the height requirements of different installation environments and the installation position deviation of the exhaust pipe 200, ensuring that the upper fixing clamp 31 and lower fixing clamp 32 clamp the exhaust pipe 200 in the optimal force state. The studs 344 are fixed with nuts, ensuring that after height adjustment... It can form a stable lock, ensuring that the adjusted structure will not loosen due to the vibration of the exhaust pipe 200; the support foot 345 fixed at the bottom of the docking seat 342 and the two sets of anchor bolt mounting slots not only expand the support contact area to improve overall stability, but also provide flexible installation position selection for the anchor bolts, which can adapt to the bolt hole distribution of different mounting surfaces and enhance the fixing reliability; this adjustable and stable structural design improves the support effect on the exhaust pipe 200, effectively counteracts the vibration impact force during high-speed exhaust, and ensures the long-term stable operation of the system.

[0023] In a preferred embodiment, the airflow combing assembly 35 includes a combing plate 351, a deceleration buffer plate 352, combing holes 353, and a positioning ring 354. The airflow combing assembly 35 is installed inside the exhaust pipe 200. The surface of the combing plate 351 is covered with the deceleration buffer plate 352, and multiple sets of combing holes 353 are equidistantly provided on both the deceleration buffer plate 352 and the combing plate 351. The deceleration buffer plate 352 and the combing holes 353 on the combing plate 351 are connected.

[0024] The deceleration buffer plate 352 is a circular structure made of rubber. The bottom of the comb plate 351 is connected to a positioning ring 354, which is fixedly connected to the inner circumference of the exhaust pipe 200.

[0025] like Figure 2-5As shown: The airflow combing component 35 optimizes the airflow and suppresses vibration within the exhaust pipe 200. Firstly, it is fixed to the inner circumference of the exhaust pipe 200 by a positioning ring 354 at the bottom, ensuring stable installation and preventing displacement due to airflow impact, thus providing a stable foundation for airflow combing. The combing plate 351 and the rubber deceleration buffer 352 covering the surface, along with multiple sets of equidistant combing holes 353 connected to each other, disperse the high-speed airflow within the exhaust pipe 200 into multiple orderly airflows. This not only breaks up eddies through the guiding effect of the combing holes 353, but also... By streamlining the flow field, vibrations caused by irregular airflow impacts on the inner wall of the pipe are reduced. The elastic properties of the rubber deceleration buffer 352 can also absorb the impact energy of the airflow, further weakening the amplitude of airflow pulsation. At the same time, the circular structure of the deceleration buffer 352 is adapted to the inner wall of the exhaust pipe 200, which can prevent the formation of local turbulence at the edge of the component. The equidistant distribution of the streamlining holes 353 can ensure uniform airflow distribution and prevent sudden changes in local airflow pressure. This reduces the causes of vibration from the source, ultimately improving the stability of the exhaust pipe 200 operation and reducing the impact of vibration on the pipe and surrounding components.

Claims

1. A centrifugal air compressor, comprising an air compressor body (100), wherein an exhaust pipe (200) is mounted on the air compressor body (100), characterized in that: An airflow combing support mechanism (300) is provided on the outside of the exhaust pipe (200). The airflow combing support mechanism (300) includes an upper fixing hoop (31) and a lower fixing hoop (32) covering the surface and bottom of the exhaust pipe (200). Adjustment support components (34) are fixedly provided on both sides of the bottom of the lower fixing hoop (32). Support feet (345) are provided at the bottom of the adjustment support components (34), and the support feet (345) are fixed by anchor bolts.

2. A centrifugal air compressor according to claim 1, characterized in that: The airflow combing support mechanism (300) also includes a connecting seat (33) and an airflow combing component (35), and both ends of the upper fixing hoop (31) and the lower fixing hoop (32) are provided with connecting seats (33), and the two sets of connecting seats (33) are fixed together by bolts.

3. A centrifugal air compressor according to claim 1, characterized in that: The adjustment support assembly (34) also includes a docking frame (341), a docking seat (342), an adjustment space (343), and a stud (344). The bottom of the docking seat (342) is fixedly provided with a support foot (345), and the support foot (345) is provided with two sets of anchor bolt mounting slots.

4. A centrifugal air compressor according to claim 3, characterized in that: The top of the docking frame (341) is fixed to the connecting seat (33), and its bottom is inserted into the interior of the docking seat (342). Two sets of U-shaped adjustment spaces (343) are provided on the side wall of the docking seat (342), and studs (344) are inserted inside the two sets of adjustment spaces (343).

5. A centrifugal air compressor according to claim 4, characterized in that: The stud (344) passes through the adjustment space (343) and is fixed by the nut. The depth of the docking bracket (341) inserted into the docking seat (342) is adjusted and fixed by the stud (344), the nut and the adjustment space (343).

6. A centrifugal air compressor according to claim 2, characterized in that: The airflow combing assembly (35) includes a combing plate (351), a deceleration buffer plate (352), combing holes (353) and a positioning ring (354). The airflow combing assembly (35) is installed inside the exhaust pipe (200). The surface of the combing plate (351) is covered with a deceleration buffer plate (352). Multiple sets of combing holes (353) are equidistantly opened on both the deceleration buffer plate (352) and the combing plate (351). The deceleration buffer plate (352) and the combing holes (353) on the combing plate (351) are connected.

7. A centrifugal air compressor according to claim 6, characterized in that: The deceleration buffer plate (352) is a circular structure made of rubber. The bottom of the comb plate (351) is connected to a positioning ring (354), and the positioning ring (354) is fixedly connected to the inner circumference of the exhaust pipe (200).

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