Flow collecting tool for fan impeller

Abstract

The utility model discloses a fan impeller flow collecting tool which comprises a check ring and an air gathering pipe which are connected into a whole through welding, the air gathering pipe is installed on the back face of the check ring, the check ring and the air gathering pipe share the same center shaft, the check ring is communicated with the interior of the air gathering pipe, the inner diameter of the check ring is equal to the inner diameter of the air gathering pipe, and the outer diameter of the check ring is larger than the outer diameter of the air gathering pipe. The air gathering pipe extends into the fan impeller by 1-2 cm, a gap is reserved between the outer side face of the air gathering pipe and the inner side face of the fan impeller, four mounting holes are formed in the check ring, and the check ring is fixedly connected with the circulating air partition plate in the mode that bolts sequentially penetrate through the mounting holes in the check ring and the mounting holes in the circulating air partition plate. According to the utility model, the check ring and the air gathering pipe are arranged to ensure that air in the furnace chamber completely enters the fan, so that the aims of air leakage prevention and air gathering are fulfilled, and heat in the furnace chamber is fully stirred, so that a balanced temperature point is reached in the furnace chamber, the temperature in the furnace chamber is uniform, and the product quality is finally ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan impellers, and particularly relates to a flow collecting tooling for a fan impeller. Background Art

[0002] During the use of an annealing furnace, in order to ensure an equilibrium temperature point in the furnace cavity, it is necessary to fully agitate the heat in the furnace cavity through a fan, so as to make the temperature in the furnace cavity uniform. In the prior art, when one end of the fan impeller of the annealing furnace is installed on the inner side wall of the annealing furnace, the other end of the fan impeller extends into a circular hole of a circulating air partition plate (a circulating air passage is formed between the inner side wall of the annealing furnace and the circulating air partition plate) to form an air inlet. In order to keep the fan impeller rotating normally, there is a certain gap between the outer side surface of the fan impeller and the inner side surface of the circular hole. In this way, the air in the furnace cavity cannot completely enter the above-mentioned circulating passage for circulation, so that the circulating air volume and air pressure cannot meet the standard requirements, resulting in uneven temperature in the furnace cavity and affecting the quality of workpieces. Content of the Utility Model

[0003] In view of the problems raised in the background art, the utility model researches and designs a flow collecting tooling for a fan impeller, and its purpose is to provide a flow collecting tooling for a fan impeller that can ensure that the air in the furnace cavity completely enters the circulating passage, the circulating air volume and air pressure meet the standard requirements, and the temperature in the furnace cavity is uniform.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A flow collecting tooling for a fan impeller includes a retaining ring and a converging air duct connected as a whole. The converging air duct is installed on the back of the retaining ring. The central axes of the retaining ring and the converging air duct are the same central axis. The retaining ring and the converging air duct are internally connected. During installation, the converging air duct extends into the fan impeller for a certain distance and there is a gap between the outer side surface of the converging air duct and the inner side surface of the fan impeller. Installation holes are provided on the retaining ring.

[0006] Preferably, the retaining ring and the converging air duct are connected as a whole by welding.

[0007] Preferably, the inner diameter of the retaining ring is equal to the inner diameter of the converging air duct.

[0008] Preferably, the outer diameter of the retaining ring is larger than the outer diameter of the converging air duct.

[0009] Preferably, there are four installation holes.

[0010] Preferably, the length that the converging air duct extends into the fan impeller is 1 - 2 cm.

[0011] Preferably, the retaining ring is fixedly connected to the circulating air partition plate by bolts sequentially passing through the installation holes on the retaining ring and the installation holes on the circulating air partition plate.

[0012] Advantages of the present utility model: The structure of the present utility model is reasonable and novel in design. The provided retaining ring and air collecting pipe ensure that the air in the furnace cavity completely enters the blower, achieving the purpose of no air leakage and air collection, enabling the heat in the furnace cavity to be fully stirred, so as to reach a balanced temperature point in the furnace cavity, ensuring uniform temperature in the furnace cavity, and ultimately ensuring the quality of the product, with high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural view of the present utility model;

[0014] Figure 2 is a front view structural schematic diagram of the present utility model;

[0015] Figure 3 is a rear view structural schematic diagram of the present utility model;

[0016] Figure 4 is a schematic structural view of the blower impeller;

[0017] Figure 5 is a schematic structural view of the present utility model when installed in the furnace cavity.

[0018] Wherein: 1, retaining ring; 2, air collecting pipe; 3, blower impeller; 4, mounting hole; 5, bolt; 6, circulating air partition board; 7, air outlet; 8, inner side wall of the annealing furnace. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined invention purpose, the following, in conjunction with the attached drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present utility model as follows.

[0020] As Figures 1 to 4 shown, a kind of blower impeller current collecting tooling includes a retaining ring 1 and an air collecting pipe 2 connected as a whole. The air collecting pipe 2 is installed on the back of the retaining ring 1. The central axes of the retaining ring 1 and the air collecting pipe 2 are the same central axis. The retaining ring 1 and the air collecting pipe 2 are internally connected. During installation, the air collecting pipe 2 extends into the blower impeller 3 for a certain distance and there is a gap between the outer side surface of the air collecting pipe 2 and the inner side surface of the blower impeller 3. Mounting holes 4 are provided on the retaining ring.

[0021] In this embodiment, the retaining ring 1 and the air collecting pipe 2 are connected as a whole by welding.

[0022] In this embodiment, the inner diameter of the retaining ring 1 is equal to the inner diameter of the air collecting pipe 2.

[0023] In this embodiment, the outer diameter of the retaining ring 1 is larger than the outer diameter of the air collecting pipe 2.

[0024] In this embodiment, there are four mounting holes 4, which are equidistantly arranged on the retaining ring 1.

[0025] In this embodiment, the length of the air collecting pipe 2 extending into the fan impeller 3 is 1-2 cm.

[0026] In this embodiment, the retaining ring 1 is fixedly connected to the circulating air partition plate 6 by bolts 5 sequentially passing through the mounting holes 4 on the retaining ring 1 and the mounting holes (not marked in the figure) on the circulating air partition plate 6.

[0027] Specific usage process: As Figure 5 shown, during actual use, after the air collecting pipe 2 of the present invention is extended into the fan impeller 3 in the annealing furnace cavity, the retaining ring 1 is closely attached to the outer side surface of the circulating air partition plate 6. By bolts 5 sequentially passing through the mounting holes 4 on the retaining ring 1 and the mounting holes (not marked in the figure) on the circulating air partition plate 6, the fixed connection between the present invention and the circulating air partition plate 6 is realized. During the rotation of the fan impeller 3, a suction force is generated on the air in the furnace cavity. The air in the furnace cavity is sucked into the circulating channel (not marked in the figure) formed between the inner side wall 8 of the annealing furnace and the circulating air partition plate 6 through the air collecting pipe 2 of the present invention (the inner side wall 8 of the annealing furnace is parallel to the circulating air partition plate 6). The fan discharges the air in the circulating channel downward and discharges it to the air outlet 7 below the circulating air partition plate 6, and the air is discharged from the air outlet 7 (at this time, the air collecting pipe 2 is equivalent to the air inlet). The discharged air will be sucked into the circulating channel (not marked in the figure) formed between the inner side wall 8 of the annealing furnace and the circulating air partition plate 6 again through the air collecting pipe 2 of the present invention under the action of the fan, and then discharged from the air outlet 7. Repeating like this, a cycle is formed, so that the heat in the furnace cavity is fully stirred up, so that a balanced temperature point is reached in the furnace cavity, ensuring uniform temperature in the furnace cavity. The retaining ring 1 and the air collecting pipe 2 provided in the present invention ensure that the air in the furnace cavity completely enters the fan, achieving the purpose of no air leakage and air collection, so that the heat in the furnace cavity is fully stirred up, so that the circulating air volume and air pressure meet the standard requirements, thereby enabling a balanced temperature point to be reached in the furnace cavity, ensuring uniform temperature in the furnace cavity, and finally ensuring the quality of the product, with high practical value.

[0028] In summary, the present invention achieves the expected effect.

[0029] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form an equivalent embodiment with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A fan impeller current collecting tooling, characterized in that: It includes an integral retaining ring and a converging air duct. The converging air duct is installed on the back of the retaining ring. The central axes of the retaining ring and the converging air duct are the same central axis. The retaining ring is internally connected to the converging air duct. During installation, the converging air duct extends into the fan impeller for a certain distance and there is a gap between the outer side surface of the converging air duct and the inner side surface of the fan impeller. Installation holes are provided on the retaining ring.

2. The air blower impeller current collection tooling according to claim 1, wherein: The retaining ring and the converging air duct are integrally connected by welding.

3. The air blower impeller current collection tooling according to claim 1, characterized in that: The inner diameter of the retaining ring is equal to the inner diameter of the converging air duct.

4. The air blower impeller current collecting tooling according to claim 1, characterized in that: The outer diameter of the retaining ring is larger than the outer diameter of the converging air duct.

5. The air blower impeller current collecting tooling according to claim 1, characterized in that: There are four installation holes.

6. The air blower impeller current collection tooling according to claim 1, characterized in that: The length that the converging air duct extends into the fan impeller is 1 - 2 cm.

7. The air blower impeller current collector tooling according to claim 1, characterized in that: The retaining ring is fixedly connected to the circulating air partition by bolts passing through the installation holes on the retaining ring and the installation holes on the circulating air partition in sequence.

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