Air-suspended centrifugal compressor with soundproofing structure
By using a noise reduction component consisting of a soundproof cover and damping materials in an air-suspended centrifugal compressor, the problems of turbulence noise and aerodynamic noise during gas entry and exit are solved, effectively reducing noise and improving the comfort of the working environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI RUNAN SIBIAN ENERGY TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-16
AI Technical Summary
The turbulence and aerodynamic noise generated by the air-suspended centrifugal compressor during the gas intake and exhaust process can cause inconvenience to people in the surrounding area.
The noise reduction component, designed with soundproof enclosures and damping materials, replaces the original air ducts with soundproof enclosures, reduces sharp bends, and uses a combination of sound-absorbing enclosures, connecting pipes, and gaskets to reduce airflow turbulence and noise.
It effectively reduces airflow turbulence and noise generation, providing a more comfortable working environment and reducing mechanical noise.
Smart Images

Figure CN224364129U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air compressor technology, specifically to an air suspension centrifugal compressor with a sound insulation structure. Background Technology
[0002] The air-suspended high-speed centrifugal compressor is a highly efficient and energy-saving device that utilizes air-suspended bearing technology combined with the principle of high-speed centrifugal compression. It boasts significant advantages such as oil-free operation, low energy consumption, low noise, and easy maintenance, and is widely used in industrial gas compression, wastewater treatment, bio-fermentation, pharmaceuticals, and electronics manufacturing. The air-suspended centrifugal compressor employs air-suspended bearing technology, eliminating direct mechanical contact between the bearing and the rotor, thus eliminating noise generated by mechanical friction. The noise level of the air-suspended centrifugal compressor is typically far below national industrial noise standards, providing operators with a more comfortable working environment.
[0003] High-speed centrifugal compressors with air suspension have high working efficiency and large airflow during operation. When the gas enters and exits the compressor, turbulent noise and aerodynamic noise may be generated due to changes in flow rate, pressure fluctuations, and the interaction between the airflow and the pipes or valves, which may cause inconvenience to people in the surrounding area. To address this, we propose an air suspension centrifugal compressor with a sound insulation structure. Utility Model Content
[0004] The purpose of this invention is to provide an air-suspended centrifugal compressor with a sound-insulating structure to solve the problem mentioned in the background art that when gas enters and exits the compressor, turbulent noise and aerodynamic noise may be generated due to changes in flow rate, pressure fluctuations, and the interaction between airflow and pipes or valves, causing inconvenience to people in the surrounding area.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an air-suspended centrifugal compressor with a sound-insulating structure, comprising: a main body;
[0006] Also includes:
[0007] Air vents are located on the front and rear sides of the main body, facilitating air intake and exhaust.
[0008] The noise reduction component is located on the side of the air vent and is used to reduce the noise of the air entering and exiting the air vent. The noise reduction component includes a soundproof cover, and a sealing ring is fixedly connected to the bottom of the soundproof cover. The sealing ring is set in an "L" shape.
[0009] Each air vent has two gaskets fixedly connected to its outer side. The gaskets are semi-circular in shape and made of silicone.
[0010] The soundproof covers are all made of damping material, and the outer wall of the soundproof cover has multiple air slots at equal intervals.
[0011] The soundproof enclosure has a pull rod rotatably connected to both ends, with the pull rod positioned between two washers, and a movable block movably connected to the bottom end of each pull rod.
[0012] The air vent has movable slots on both sides, and the internal dimensions of the movable slots match the external dimensions of the movable block. The movable block is shaped like a "T".
[0013] The two movable blocks are connected by a connecting pipe, and the connecting pipe has a fitting groove inside, through which the connecting pipe is fitted and connected to the sealing ring.
[0014] The bottom end of the connecting tube is movably connected to a positioning bead, and the inner wall of the washer is provided with multiple positioning grooves at equal intervals. The outer wall size of the positioning bead matches the inner size of the positioning groove. The connecting tube and the washer are engaged and connected through the cooperation of the positioning bead and the positioning groove.
[0015] The movable block has a movable rod fixedly connected to its end, and a hinge is movably connected to the top of the movable rod. The hinge and the main body are engaged.
[0016] This utility model has at least the following beneficial effects:
[0017] The soundproof cover helps to alleviate the air pressure at the air inlet and outlet. The soundproof covers at both ends of the main body replace the original air ducts. The soundproof cover reduces the size of the duct and has no sharp bends, reducing airflow turbulence and noise. At the same time, the soundproof cover, connecting pipe and gasket are all made of sound-absorbing materials to avoid mechanical noise caused by gas collision with the duct due to high gas pressure and high flow rate. Attached Figure Description
[0018] Figure 1 This is a front view structural diagram of the present invention;
[0019] Figure 2 This is a cross-sectional structural diagram of the soundproof cover of this utility model;
[0020] Figure 3 This is a schematic diagram of the air vent structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the connecting pipe structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the connection structure between the pull rod and the movable rod of this utility model.
[0023] In the diagram: 001, main body; 002, air vent; 003, noise reduction component; 210, gasket; 220, movable groove; 301, soundproof cover; 302, sealing ring; 310, air groove; 320, pull rod; 330, movable block; 340, connecting pipe; 350, fitting groove; 341, positioning bead; 342, positioning groove; 360, movable rod; 370, hinge. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1
[0025] Please see Figures 1 to 5 This utility model provides a technical solution: an air suspension centrifugal compressor with a sound insulation structure, comprising: a main body 001;
[0026] Also includes:
[0027] Air vents 002 are located on the front and rear sides of the main body 001, and the air vents 002 facilitate the intake and exhaust of air from the main body 001;
[0028] The noise reduction component 003 is disposed on the side of the air vent 002. The noise reduction component 003 is used to reduce the noise of the air intake and exhaust in the air vent 002. The noise reduction component 003 includes a sound insulation cover 301. A sealing ring 302 is fixedly connected to the bottom end of the sound insulation cover 301. The sealing ring 302 is set in an "L" shape.
[0029] A connecting pipe 340 is movably connected between the two movable blocks 330. The connecting pipe 340 has an internal fitting groove 350, and the connecting pipe 340 is fitted and connected to the sealing ring 302 through the fitting groove 350.
[0030] Because the soundproof cover 301 is made of a relatively soft damping material, the staff can open the opening of the soundproof cover 301 and fit the protruding part of the sealing ring 302 into the fitting groove 350 of the connecting pipe 340, so that the connecting pipe 340 can fix the soundproof cover 301. Then, by pulling the two hinges 370 and laying the hinges 370 flat, the movable rod 360 is driven to move the movable block 330 inside the movable groove 220 until the movable block 330 reaches the end of the movable groove 220. At the same time, the two pull rods 320 pull the connecting pipe 340, so that the connecting pipe 340 is tightly attached to the surface of the washer 210, thereby installing the soundproof cover 301 on the main body 001.
[0031] Two washers 210 are fixedly connected to the outer side of each air vent 002. Each washer 210 is set in a semi-circular ring shape and is made of silicone.
[0032] The soundproof cover 301 is made of damping material, and the outer wall of the soundproof cover 301 is provided with multiple air slots 310 at equal intervals.
[0033] Among them, the soundproof covers 301 at both ends of the main body 001 replace the original air ducts. The soundproof covers 301 reduce the size of the ducts and have no sharp bends, thus reducing airflow turbulence and noise generation.
[0034] Both ends of the soundproof cover 301 are rotatably connected to a pull rod 320, which is located between two washers 210. The bottom end of the pull rod 320 is movably connected to a movable block 330.
[0035] Both sides of the air vent 002 are provided with movable slots 220. The internal dimensions of the movable slots 220 match the external dimensions of the movable block 330. The movable block 330 is shaped like a "T".
[0036] The movable groove 220 and the movable block 330 cooperate with each other to facilitate the movement of the pull rod 320 inside the washer 210. The two pull rods 320 support the connecting pipe 340, so that the connecting pipe 340 can extend out from inside the washer 210 and the bottom end of the connecting pipe 340 is exposed. The staff can then take the soundproof cover 301 out from inside the connecting pipe 340 and inspect the compressor. Example 2
[0037] like Figure 4-5 In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the bottom end of the connecting tube 340 is movably connected with a positioning bead 341, and the inner wall of the washer 210 is provided with multiple positioning grooves 342 at equal intervals. The outer wall size of the positioning bead 341 matches the inner size of the positioning groove 342. The connecting tube 340 and the washer 210 are connected by the mutual cooperation of the positioning bead 341 and the positioning groove 342.
[0038] The end of the movable block 330 is fixedly connected to a movable rod 360, and the top of the movable rod 360 is movably connected to a hinge 370, which forms a snap-fit connection with the main body 001.
[0039] When the connecting pipe 340 enters the washer 210, the positioning groove 342 locks the positioning bead 341, quickly positioning the connecting pipe 340. Then, the worker can pull the pull rod 320, and the two movable rods 360 simultaneously push out the hinge 370, locking the hinge 370 onto the main body 001. Fixing the hinge 370 fixes the pull rod 320, further fixing the soundproof cover 301, thus installing the soundproof cover 301 onto the main body 001.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An air-suspended centrifugal compressor with a sound-insulating structure, comprising: Main body (001); Its characteristic is that it also includes: Air vents (002) are respectively located on the front and rear sides of the main body (001), and the air vents (002) facilitate the intake and exhaust of air for the main body (001); A noise reduction component (003) is disposed on the side of the air vent (002). The noise reduction component (003) is used to reduce the noise of air intake and exhaust in the air vent (002). The noise reduction component (003) includes a soundproof cover (301). A sealing ring (302) is fixedly connected to the bottom end of the soundproof cover (301). The sealing ring (302) is set in an "L" shape.
2. The air-suspended centrifugal compressor with a sound-insulating structure according to claim 1, characterized in that: Two washers (210) are fixedly connected to the outer side of each air vent (002). Each washer (210) is set in a semi-circular ring shape and is made of silicone.
3. The air-suspended centrifugal compressor with a sound-insulating structure according to claim 1, characterized in that: The soundproof cover (301) is made of damping material, and the outer wall of the soundproof cover (301) is provided with multiple air grooves (310) at equal intervals.
4. The air-suspended centrifugal compressor with a sound-insulating structure according to claim 1, characterized in that: Both ends of the soundproof cover (301) are rotatably connected to a pull rod (320), the pull rod (320) is located between two washers (210), and the bottom end of the pull rod (320) is movably connected to a movable block (330).
5. The air-suspended centrifugal compressor with a sound-insulating structure according to claim 4, characterized in that: Both sides of the air vent (002) are provided with movable slots (220), the internal dimensions of the movable slots (220) match the external dimensions of the movable block (330), and the shape of the movable block (330) is set as "T".
6. The air-suspended centrifugal compressor with a sound-insulating structure according to claim 4, characterized in that: A connecting pipe (340) is movably connected between the two movable blocks (330). The connecting pipe (340) has an internal fitting groove (350) and is fitted and connected to the sealing ring (302) through the fitting groove (350).
7. The air-suspended centrifugal compressor with a sound-insulating structure according to claim 6, characterized in that: The bottom end of the connecting tube (340) is movably connected to a positioning bead (341). The inner wall of the washer (210) is provided with multiple positioning grooves (342) at equal intervals. The outer wall size of the positioning bead (341) matches the inner size of the positioning groove (342). The connecting tube (340) and the washer (210) are connected by the positioning bead (341) and the positioning groove (342) to form a snap-fit connection.
8. The air-suspended centrifugal compressor with a sound-insulating structure according to claim 4, characterized in that: The movable block (330) is fixedly connected to a movable rod (360) at its end, and a hinge (370) is movably connected to the top of the movable rod (360). The hinge (370) and the main body (001) are engaged.