Centrifugal conveying fan for chemical materials

Abstract

The utility model discloses a chemical material centrifugal conveying fan, including case, front cover, driving motor and assembly type impeller, the front side detachable fixed with front cover of case, be provided with air inlet on the front cover, the air inlet is connected with chemical material storage jar through pipeline, be provided with the air outlet on the case, the driving motor is fixed in the rear side of case, and assembly type impeller is located in the inside of case, and the output shaft of driving motor is fixedly connected with assembly type impeller, and assembly type impeller includes: hub, pressure ring, T type blade, fastening assembly and butterfly spring. The utility model silicon rubber elasticity buffer sleeve absorbs vibration, and butterfly spring prevents bolt loosening and buffers impact, reduces T type blade fatigue damage, single blade damage can be replaced alone, need not to change whole impeller, and material is saved.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal conveying fan technology, and in particular to a centrifugal conveying fan for chemical materials. Background Technology

[0002] In chemical production processes, centrifugal conveyor fans are core equipment for the efficient transport of gases and dusty / mist-containing chemical materials. With their stable pressure characteristics and wide adaptability flow range, they are widely used in critical stages such as raw material conveying, exhaust gas treatment, and reaction system ventilation. However, existing centrifugal conveyor fans often have rigidly connected blades without a buffer structure, making them prone to fatigue cracking due to vibration. Furthermore, the impellers are often integral, requiring replacement of the entire impeller when a single blade fails, resulting in material waste. Therefore, there is an urgent need to develop a centrifugal conveyor fan for chemical materials that uses a silicone rubber elastic buffer sleeve to absorb vibration, a butterfly spring to prevent bolt loosening and buffer impact, reducing fatigue damage to T-shaped blades, and allows for individual blade replacement without replacing the entire impeller, thus saving materials and overcoming the shortcomings of current applications to meet current needs. Utility Model Content

[0003] The purpose of this invention is to provide a centrifugal conveying fan for chemical materials to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A centrifugal conveying fan for chemical materials includes a casing, a front cover, a drive motor, and an assembled impeller. The front cover is detachably fixed to the front side of the casing and has an air inlet connected to a chemical material storage tank via a pipe. The casing has an air outlet. The drive motor is fixed to the rear side of the casing. The assembled impeller is located inside the casing, and the output shaft of the drive motor is fixedly connected to the assembled impeller. The assembled impeller includes a hub, a pressure ring, T-shaped blades, fastening components, and butterfly springs. The hub has multiple slots, each containing an elastic buffer sleeve. Multiple T-shaped blades pass through an elastic buffer sleeve. The pressure ring is located at the rear of the hub and presses down on the multiple T-shaped blades. The pressure ring is detachably fixed to the hub via multiple fastening components. Multiple butterfly springs are mounted on the pressure ring and press against the hub.

[0006] Preferably, the fastening assembly consists of bolts, nuts, and washers.

[0007] Preferably, the elastic buffer sleeve is made of silicone rubber.

[0008] Preferably, the wheel hub is fixed to the output shaft of the drive motor via a flat key.

[0009] The beneficial effects of this utility model are as follows: When in use, this centrifugal conveyor fan for chemical materials drives the hub and T-shaped blades to rotate via a drive motor. The rotation of the T-shaped blades drives airflow, which in turn carries the chemical raw materials, thus achieving the conveying of the chemical raw materials. Simultaneously, during rotation, the elastic buffer sleeve absorbs vibration, reducing its impact on the T-shaped blades. The elastic deformation of the disc spring buffers vibration impact, reducing fatigue damage to the blades caused by "vibration displacement." When a T-shaped blade is damaged, the pressure ring can be removed first, and then the damaged T-shaped blade can be individually disassembled and replaced, saving materials. In summary, this utility model uses a silicone rubber elastic buffer sleeve to absorb vibration, a disc spring to prevent bolt loosening and buffer impact, reducing fatigue damage to the T-shaped blades; a single damaged blade can be replaced individually without replacing the entire impeller, saving materials. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0011] Figure 2 This is an internal sectional view of the present invention.

[0012] Figure 3 This is a partial structural diagram of the present invention. Figure 1 .

[0013] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .

[0014] Figure 5 This utility model Figure 4 A diagram illustrating the split state.

[0015] Figure 6 This is a partial structural diagram of the present invention. Figure 3 .

[0016] Legend:

[0017] 1. Chassis; 101. Air outlet; 2. Front cover; 201. Air inlet; 3. Drive motor; 4. Assembled impeller; 401. Hub; 4011. Slot; 4012. Elastic buffer sleeve; 402. Pressure ring; 403. T-shaped blade; 404. Fastening assembly; 405. Butterfly spring. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] See Figures 1-6 In this embodiment of the present invention, a centrifugal conveying fan for chemical materials includes a casing 1, a front cover 2, a drive motor 3, and an assembled impeller 4. The front cover 2 is detachably fixed to the front side of the casing 1. The front cover 2 is provided with an air inlet 201, which is connected to a chemical material storage tank through a pipe. The casing 1 is provided with an air outlet 101. The drive motor 3 is fixed to the rear side of the casing 1. The assembled impeller 4 is located inside the casing 1. The output shaft of the drive motor 3 is fixedly connected to the assembled impeller 4. In use, the drive motor 3 drives the assembled impeller 4 to rotate, and the assembled impeller 4 drives the airflow to transport the chemical materials.

[0021] The assembled impeller 4 includes: a hub 401, a pressure ring 402, T-shaped blades 403, a fastening assembly 404, and a disc spring 405. The hub 401 is fixed to the output shaft of the drive motor 3 by a flat key. The hub 401 is provided with multiple slots 4011, and each slot 4011 is fixed with an elastic buffer sleeve 4012. There are multiple T-shaped blades 403, and each T-shaped blade 403 passes through one elastic buffer sleeve 4012. The elastic buffer sleeve 4012 can buffer and absorb vibration, reducing the impact of vibration on the T-shaped blades. Due to the influence of blade 403, the pressure ring 402 is located on the rear side of the hub 401 and presses and fixes multiple T-shaped blades 403. The pressure ring 402 is detachably fixed to the hub 401 by multiple fastening components 404. The fastening components 404 consist of bolts, nuts and washers. Multiple disc springs 405 are installed on the pressure ring 402 and press against the hub 401. The disc springs can provide continuous preload to the bolts of the fastening components 404 to prevent the bolts from loosening. At the same time, the elastic deformation of the disc springs 405 can buffer vibration impact and reduce fatigue damage to the blades caused by "vibration displacement".

[0022] The elastic buffer sleeve 4012 is made of silicone rubber, which gives it good elasticity and corrosion resistance.

[0023] Working principle: This centrifugal conveyor fan for chemical materials, when in use, drives the hub 401 and T-shaped blades 403 to rotate via the drive motor 3. The rotation of the T-shaped blades 403 drives the airflow, which in turn carries the chemical raw materials, thus achieving the conveying of the chemical raw materials. At the same time, during rotation, the elastic buffer sleeve 4012 can buffer and absorb vibration, reducing the impact of vibration on the T-shaped blades 403. The elastic deformation of the disc spring 405 can buffer the vibration impact and reduce fatigue damage to the blades caused by "vibration displacement". When the T-shaped blades 403 are damaged, the pressure ring 402 can be removed first, and then the damaged T-shaped blades 403 can be disassembled and replaced separately to save materials.

[0024] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A centrifugal conveying fan for chemical materials, characterized in that, The assembly includes a chassis (1), a front cover (2), a drive motor (3), and an assembled impeller (4). The front cover (2) is detachably fixed to the front side of the chassis (1). An air inlet (201) is provided on the front cover (2), and the air inlet (201) is connected to a chemical material storage tank through a pipe. An air outlet (101) is provided on the chassis (1). The drive motor (3) is fixed to the rear side of the chassis (1). The assembled impeller (4) is located inside the chassis (1). The output shaft of the drive motor (3) is fixedly connected to the assembled impeller (4). The assembled impeller (4) includes: a hub (401), a pressure ring (402), T-shaped blades (403), and fastening components (404). 404) and a butterfly spring (405), the hub (401) is provided with a plurality of slots (4011), each slot (4011) is fixed with an elastic buffer sleeve (4012), the number of T-shaped blades (403) is plurality of, each T-shaped blade (403) passes through an elastic buffer sleeve (4012), the pressure ring (402) is located on the rear side of the hub (401) and presses and fixes the plurality of T-shaped blades (403), the pressure ring (402) is detachably fixed to the hub (401) by a plurality of fastening components (404), and a plurality of butterfly springs (405) are installed on the pressure ring (402) and pressed onto the hub (401).

2. The centrifugal conveyor fan for chemical materials according to claim 1, characterized in that, The fastening assembly (404) consists of bolts, nuts and washers.

3. The centrifugal conveyor fan for chemical materials according to claim 1, characterized in that, The elastic buffer sleeve (4012) is made of silicone rubber.

4. The centrifugal conveyor fan for chemical materials according to claim 1, characterized in that, The hub (401) is fixed to the output shaft of the drive motor (3) by a flat key.

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