High-stability fan impeller structure suitable for cooling compressor bin

Abstract

The high-stability fan impeller structure suitable for cooling the compressor bin comprises an installation frame assembly, a wheel disc is rotationally connected to the installation frame assembly, and blades are arranged on the peripheral side of the wheel disc. The blades are cambered-surface wing-shaped blades, tooth-shaped openings are formed in the tail ends of the blades, conical flow guide grooves are formed in the positions, corresponding to the tooth-shaped openings, of the blades, and the mounting frame assembly comprises a bottom plate, a connecting cylinder, an air guide ring and a connecting rod; the connecting rods are distributed on the peripheral side of the connecting cylinder, the other ends of the connecting rods are connected with the air guide ring, and the connecting rod at the lowermost end is connected with the bottom plate; according to the fan impeller, the air guide rings are additionally arranged on the peripheries of the blades, cooling air is restrained within a certain range, the cooling effect of the fan impeller on a compressor bin is improved, the output power of the fan impeller is reduced under the same cooling effect, noise is reduced, meanwhile, the output power of a motor is reduced, and the service life of the fan impeller is prolonged. And meanwhile, the air guide ring plays a role in isolating and protecting the compressor bin pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan impellers, and particularly relates to a high-stability fan impeller structure suitable for cooling a compressor chamber. Background Art

[0002] A fan impeller is a key component in a fan. Its main function is to convert the mechanical energy of the prime mover into the kinetic energy and pressure energy of the gas, thereby realizing the transportation and treatment of the gas. The design and performance of the impeller directly affect the efficiency, noise, stability and service life of the fan. In a compressor chamber, the fan impeller is used to cool the compressor chamber.

[0003] The existing fan impellers for compressor chambers generate a large amount of noise during operation, which in turn affects the sound insulation effect of the compressor chamber. Moreover, under the same effect conditions, the existing fan impellers generate insufficient air volume and cannot completely cool the compressor chamber. For this reason, we propose a high-stability fan impeller structure suitable for cooling a compressor chamber. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-stability fan impeller structure suitable for cooling a compressor chamber, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A high-stability fan impeller structure suitable for cooling a compressor chamber, including a mounting frame assembly, on which a wheel disc is rotatably connected, and a plurality of blades are arranged on the periphery of the wheel disc;

[0006] The blade is an arc-shaped wing-shaped blade, and a toothed opening is provided at the tail end of the blade, and a conical diversion groove is provided at a position corresponding to the toothed opening on the blade;

[0007] The mounting frame assembly includes a bottom plate, a connecting cylinder, a wind guiding ring and a connecting rod;

[0008] A plurality of the connecting rods are provided, and the plurality of connecting rods are equidistantly distributed on the outer peripheral side of the connecting cylinder. The other ends of the plurality of connecting rods are connected to the wind guiding ring, and the lowermost connecting rod is connected to the bottom plate;

[0009] The wheel disc is rotatably installed on the connecting cylinder.

[0010] Preferably, the connecting rod is an L-shaped rod, and the connection width between the connecting rod and the wind guiding ring is the same as the width of the bottom plate.

[0011] Preferably, a reinforcing plate is provided between the lower part of the wind guiding ring and the end of the bottom plate.

[0012] Preferably, a support box is arranged between the connection positions of the connecting rod and the bottom plate, and the support box is connected to the air guide ring.

[0013] Preferably, the upper end surface of the support box is an arc surface same as the inner side surface of the air guide ring.

[0014] Preferably, reinforcing rib plates connected to the bottom plate are arranged inside the support box.

[0015] Preferably, the bottom plate, the connecting cylinder, the air guide ring, the connecting rod, the reinforcing plate, the support box and the reinforcing rib plates are of an integrally formed structure.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. In the present utility model, an air guide ring is added on the outer periphery of the blade, so that the cooling air is constrained within a certain range, the cooling effect of the fan impeller on the compressor chamber is improved, the output power of the fan impeller is reduced under the same cooling effect, thereby reducing the noise, and at the same time, the output power of the motor is reduced. Meanwhile, the air guide ring also plays an isolation and protection role for the compressor chamber pipeline, preventing the pipeline from rubbing against the blade and avoiding damage to the fan impeller;

[0018] 2. In the present utility model, the blade is an arc-shaped fin blade, which can control the convergence position and influence range of the gas flow around the blade. Cooperating with the induction effect of the concave part of the arc surface on the flow of the gas convergence streamline, the energy damage of the gas flow on the suction surface of the concave part of the blade is reduced, the work capacity of the blade is improved, and the damping ratio of the wind wheel and the blade stiffness can be increased, effectively reducing the maximum displacement and strain values of the blade and enhancing the structural stability of the blade;

[0019] 3. In the present utility model, tooth-shaped openings and conical diversion grooves are arranged on the blade corresponding to each other. While retaining the aerodynamic characteristics of the arc-shaped fin of the blade, the aerodynamic coefficient is improved, and at the same time, the rotation noise of the impeller is reduced, and better aerodynamic performance is obtained;

[0020] 4. In the present utility model, the blades on the wheel disc are supported by the air guide ring, the connecting rod, the reinforcing plate, the support box and the reinforcing rib plates, the structural strength of the fan impeller is enhanced, the stability of the fan impeller during rotation is ensured, and thus the operation stability of the fan impeller is improved;

[0021] 5. The mounting frame assembly of the present utility model adopts an integrated design, simplifies the installation steps, is convenient for the assembly and use of the fan impeller, and improves the assembly efficiency of the fan impeller. Description of the Drawings

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0023] Figure 2Schematic three-dimensional structure diagram of the present utility model;

[0024] Figure 3 Schematic three-dimensional structure diagram of the blade of the present utility model;

[0025] Figure 4 Schematic three-dimensional structure diagram of the blade of the present utility model.

[0026] In the figure: 1. Mounting frame assembly; 101. Bottom plate; 102. Connecting cylinder; 103. Air guide ring; 104. Connecting rod; 105. Reinforcing plate; 106. Support box; 107. Reinforcing rib plate; 2. Wheel disc; 3. Blade; 301. Tooth-shaped opening; 302. Conical flow guiding groove. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1-4 , the high-stability fan impeller structure suitable for compressor chamber cooling provided by the present utility model includes a mounting frame assembly 1, a wheel disc 2 is rotatably connected to the mounting frame assembly 1, and a plurality of blades 3 are arranged on the circumferential side of the wheel disc 2;

[0029] The blade 3 is an arc-shaped wing-shaped blade, and a tooth-shaped opening 301 is provided at the tail end of the blade 3, and a conical flow guiding groove 302 is provided at a position corresponding to the tooth-shaped opening 301 on the blade 3.

[0030] In the present utility model, the blade 3 is an arc-shaped wing-shaped blade, which can control the convergence position and influence range of gas flow around the blade 3, cooperate with the induction effect of the concave part of the arc surface on the flow of the gas convergence streamline, reduce the energy damage of the gas flow on the suction surface of the concave part of the blade 3, improve the work capacity of the blade, and can improve the damping ratio of the wind wheel and the blade stiffness, effectively reduce the maximum displacement and strain values of the blade, and enhance the structural stability of the blade;

[0031] The present utility model is provided with correspondingly distributed tooth-shaped openings 301 and conical flow guiding grooves 302 on the blade 3, which can improve the aerodynamic coefficient while retaining the aerodynamic characteristics of the arc-shaped wing shape of the blade, and at the same time reduce the rotation noise of the impeller, and obtain better aerodynamic performance.

[0032] In this embodiment, as Figures 1-2As shown, the mounting frame assembly 1 includes a bottom plate 101, a connecting cylinder 102, a wind guiding ring 103, and a connecting rod 104; a plurality of connecting rods 104 are provided, and the plurality of connecting rods 104 are equally spaced on the outer peripheral side of the connecting cylinder 102. The other ends of the plurality of connecting rods 104 are connected to the wind guiding ring 103, and the lowermost connecting rod 104 is connected to the bottom plate 101; the wheel disc 2 is rotatably mounted on the connecting cylinder 102;

[0033] In the present utility model, a wind guiding ring 103 is added to the outer periphery of the blade 3, so that the cooling air is constrained within a certain range, improving the cooling effect of the fan impeller on the compressor chamber. Under the same cooling effect, the output power of the fan impeller is reduced, thereby reducing the noise. At the same time, the output power of the motor is reduced, and the wind guiding ring 103 also plays an isolation and protection role for the compressor chamber pipeline, preventing the pipeline from rubbing against the blade 3 and avoiding damage to the fan impeller.

[0034] In this embodiment, as Figures 1-2 shown, the connecting rod 104 is an L-shaped rod, and the connection width between the connecting rod 104 and the wind guiding ring 103 is the same as the width of the bottom plate 101. A reinforcing plate 105 is provided between the lower part of the wind guiding ring 103 and the end of the bottom plate 101. A support box 106 is provided between the connection of the connecting rod 104 and the bottom plate 101. The support box 106 is connected to the wind guiding ring 103. The upper end surface of the support box 106 is an arc surface the same as the inner side surface of the wind guiding ring 103. Reinforcing rib plates 107 connected to the bottom plate 101 are provided inside the support box 106.

[0035] In the present utility model, the blade 3 on the wheel disc 2 is supported by the wind guiding ring 103, the connecting rod 104, the reinforcing plate 105, the support box 106, and the reinforcing rib plates 107, strengthening the structural strength of the fan impeller, ensuring the stability of the fan impeller during rotation, and further improving the operating stability of the fan impeller.

[0036] In this embodiment, as Figures 1-2 shown, the bottom plate 101, the connecting cylinder 102, the ring cover 103, the connecting rod 104, the reinforcing plate 105, the support box 106, and the reinforcing rib plates 107 are of an integrally formed structure;

[0037] The mounting frame assembly 1 of the present utility model adopts an integrated design, simplifying the installation steps, facilitating the assembly and use of the fan impeller, and improving the assembly efficiency of the fan impeller.

[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A highly stable fan impeller structure suitable for the cooling of a compressor compartment, characterized in that, It includes a mounting frame assembly (1), on which a turntable (2) is rotatably connected, and a plurality of blades (3) are arranged on the circumferential side of the turntable (2); The blade (3) is an arc-shaped wing blade, and a toothed opening (301) is formed at the tail end of the blade (3), and a conical flow guiding groove (302) is formed at a position corresponding to the toothed opening (301) on the blade (3); The mounting frame assembly (1) includes a bottom plate (101), a connecting cylinder (102), a wind guiding ring (103) and a connecting rod (104); A plurality of the connecting rods (104) are provided, and the plurality of connecting rods (104) are equally spaced on the outer circumferential side of the connecting cylinder (102), the other ends of the plurality of connecting rods (104) are connected to the wind guiding ring (103), and the lowermost connecting rod (104) is connected to the bottom plate (101); The turntable (2) is rotatably mounted on the connecting cylinder (102).

2. The high-stability fan impeller structure applicable to the cooling of a compressor compartment according to claim 1, wherein: The connecting rod (104) is an L-shaped rod, and the connection width between the connecting rod (104) and the wind guiding ring (103) is the same as the width of the bottom plate (101).

3. The high-stability fan impeller structure suitable for the cooling of the compressor compartment according to claim 2, characterized in that: A reinforcing plate (105) is provided between the lower part of the wind guiding ring (103) and the end of the bottom plate (101).

4. A high-stability fan impeller structure applicable to the cooling of a compressor compartment, characterized in that: A support box (106) is provided between the connection of the connecting rod (104) and the bottom plate (101), and the support box (106) is connected to the wind guiding ring (103).

5. A high-stability fan impeller structure applicable to the cooling of a compressor compartment, characterized in that: The upper end surface of the support box (106) is an arc surface same as the inner side surface of the wind guiding ring (103).

6. The high-stability fan impeller structure applicable to the cooling of the compressor compartment according to claim 5, wherein: Reinforcing rib plates (107) connected to the bottom plate (101) are arranged inside the support box (106).

7. A highly stable fan impeller structure suitable for the cooling of a compressor compartment, characterized in that: The bottom plate (101), the connecting cylinder (102), the wind guiding ring (103), the connecting rod (104), the reinforcing plate (105), the support box (106) and the reinforcing rib plates (107) are of an integrally formed structure.

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