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CN-224228894-U - Axial fan and guiding device

CN224228894UCN 224228894 UCN224228894 UCN 224228894UCN-224228894-U

Abstract

The utility model relates to the technical field of axial flow fans, in particular to an axial flow fan and a flow guiding device. The utility model provides an axial flow fan which comprises a machine gate, a flow pressing mechanism and a flow guiding device, wherein an air inlet is formed at one end of the machine gate, an air outlet is formed at the other end of the machine gate, the flow pressing mechanism and the flow guiding device are sequentially arranged in the machine gate along the axis of the machine gate, the flow pressing mechanism is close to the air inlet and is used for sucking external air into the machine gate, the flow guiding device is used for adjusting the air flow rate in the machine gate, and the flow guiding device comprises a conical sleeve which is arranged in the machine gate. The aperture of the conical sleeve is narrowed from the air inlet to the air outlet of the machine gate to form a horn shape, so that the flow speed of the gas flowing through the conical sleeve is accelerated, the axial gas flow in the machine gate is rapidly discharged, and the effect of improving the exhaust capacity is achieved.

Inventors

  • LI HUI
  • CHENG WEIGUO
  • WEN JING
  • SHENG ZHENG
  • ZHU BO

Assignees

  • 大冶特殊钢有限公司

Dates

Publication Date
20260512
Application Date
20231226

Claims (10)

  1. 1. An axial flow fan is characterized by comprising a machine gate (1), a flow pressing mechanism and a flow guiding device; An air inlet is formed at one end of the machine gate (1), an air outlet is formed at the other end of the machine gate, and the flow pressing mechanism and the flow guiding device are sequentially arranged in the machine gate (1) along the axis of the machine gate (1); The air inlet is close to the air inlet, and the air inlet is used for sucking outside air into the air brake (1); the flow guiding device is used for adjusting the gas flow rate in the machine brake (1), and comprises a conical sleeve (7), wherein the conical sleeve (7) is arranged in the machine brake (1), and the conical sleeve (7) and the machine brake (1) are coaxially arranged; the conical sleeve (7) is in a horn shape, and the caliber of the conical sleeve (7) is narrowed from the air inlet to the air outlet of the air gate (1).
  2. 2. An axial flow fan according to claim 1, characterized in that the flow guiding device further comprises an opening adjustment mechanism which adjusts the flow rate of the gas passing through the conical sleeve (7) by adjusting the opening size of the conical sleeve (7).
  3. 3. An axial flow fan according to claim 2, characterized in that the opening adjusting mechanism comprises at least one telescopic member (10) and at least one movable ring, the movable ring is sleeved outside the conical sleeve (7), one end of the telescopic member (10) is connected with the conical sleeve (7), the other end of the telescopic member is connected with the inner wall of the machine gate (1) through a connecting seat (11), the telescopic direction of the telescopic member (10) is the same as the axial direction of the machine gate (1), and the movable ring is driven to move along the axial direction of the conical sleeve (7) when the telescopic member (10) stretches.
  4. 4. An axial flow fan according to claim 3, characterized in that the movable ring is arranged coaxially with the conical sleeve (7), and the movable ring is arranged at one end of the conical sleeve (7) facing the air outlet.
  5. 5. An axial flow fan according to claim 3, wherein one end of the expansion piece (10) is connected to the connecting seat (11), a pipe body (18) is installed on the connecting seat (11), the pipe body (18) is coaxially arranged with the axis of the air brake (1), and one end of the conical sleeve (7) facing the air outlet is in sealing connection with one end of the pipe body (18).
  6. 6. The axial flow fan according to claim 5, wherein the conical sleeve (7) is a rubber sleeve, and one end of the conical sleeve (7) facing the air inlet is fixedly connected with the inner wall of the air lock (1).
  7. 7. An axial flow fan according to claim 3, wherein the opening adjusting mechanism is provided with two groups, the diameter of the movable ring in one group of the opening adjusting mechanism is larger than that of the movable ring in the other group of the opening adjusting mechanism, and the movable rings in the two groups of the opening adjusting mechanism are sleeved outside the conical sleeve (7) in sequence along the axis of the conical sleeve (7).
  8. 8. An axial flow fan according to claim 3, characterized in that the flow pressing mechanism comprises a first turbine (2), an output shaft (3) and a driving member (4), a support seat (5) is vertically arranged in the machine brake (1), the driving member (4) is arranged on the support seat (5), one end of the output shaft (3) is connected with the output end of the driving member (4), the other end of the output shaft extends to the air inlet, the first turbine (2) is arranged at one end, close to the air inlet, of the output shaft (3), and the first turbine (2) is used for sucking outside air into the machine brake (1).
  9. 9. An axial flow fan according to claim 8, characterized in that the inner wall of the sluice (1) close to the outlet is rotatably fitted with at least one second turbine (15).
  10. 10. A flow guiding device, characterized in that the flow guiding device is provided by an axial flow fan according to any one of claims 1-9.

Description

Axial fan and guiding device Technical Field The utility model relates to the technical field of axial flow fans, in particular to an axial flow fan and a flow guiding device. Background An axial flow fan is a device for generating an air flow by pushing a large amount of air, and is widely used in many fields such as ventilation, air conditioning systems, industrial production, cooling equipment, and the like. They can discharge hot air rapidly and effectively, so that indoor and outdoor air can be circulated and regulated, and proper temperature and humidity can be maintained. Axial flow fans are typically comprised of a rotating impeller and a stationary housing, with air being drawn into the fan and forced into the axial direction of the impeller as the impeller rotates. The impeller is designed with beveled blades so that a strong air flow can be generated when rotating. At the same time, the shell of the fan also plays a role in guiding the air flow, so that the air flow flows along the axial direction. The existing axial flow fan depends on a fan shell to guide air flow, and cannot adjust the flow velocity of the air flow entering the fan, so that the air exhaust amount of the fan is small, and the working efficiency is general. Disclosure of utility model The utility model solves the problems that the existing axial flow fan depends on the fan shell to guide the air flow, and the air flow rate of the air flow entering the fan cannot be adjusted, so that the air exhaust amount of the fan is small, and the working efficiency is general. (II) technical scheme An axial flow fan comprises a machine gate, a flow pressing mechanism and a flow guiding device; One end of the machine gate forms an air inlet, the other end forms an air outlet, and the flow pressing mechanism and the flow guiding device are sequentially arranged in the machine gate along the axis of the machine gate; the air inlet is arranged on the air inlet, and the air inlet is connected with the air inlet; the flow guiding device is used for adjusting the gas flow rate in the machine gate and comprises a conical sleeve, wherein the conical sleeve is arranged in the machine gate and is coaxially arranged with the machine gate; The conical sleeve is in a horn shape, and the caliber of the conical sleeve is narrowed from the air inlet to the air outlet of the machine brake. According to one embodiment of the utility model, the flow guiding device further comprises an opening adjustment mechanism which adjusts the flow rate of the gas passing through the conical sleeve by adjusting the opening size of the conical sleeve. According to one embodiment of the utility model, the opening adjusting mechanism comprises at least one telescopic piece and at least one movable ring, the movable ring is sleeved outside the conical sleeve, one end of the telescopic piece is connected with the conical sleeve, the other end of the telescopic piece is connected with the inner wall of the machine brake through a connecting seat, the telescopic direction of the telescopic piece is the same as the axial direction of the machine brake, and the movable ring is driven to move along the axial direction of the conical sleeve when the telescopic piece stretches. According to one embodiment of the utility model, the movable ring is coaxially arranged with the conical sleeve, and the movable ring is arranged at one end of the conical sleeve, which faces the air outlet. According to one embodiment of the utility model, one end of the telescopic piece is connected to the connecting seat, a pipe body is arranged on the connecting seat, the pipe body and the axis of the machine brake are coaxially arranged, and one end of the conical sleeve, which faces the air outlet, is connected with one end of the pipe body in a sealing way. According to one embodiment of the utility model, the conical sleeve is a rubber sleeve, and one end of the conical sleeve facing the air inlet is fixedly connected with the inner wall of the machine brake. According to one embodiment of the utility model, the opening adjusting mechanism is provided with two groups, the diameter of the movable ring in one group of the opening adjusting mechanism is larger than that of the movable ring in the other group of the opening adjusting mechanism, and the movable rings in the two groups of the opening adjusting mechanisms are sleeved outside the conical sleeve in sequence along the axis of the conical sleeve. According to one embodiment of the utility model, the flow pressing mechanism comprises a first turbine, an output shaft and a driving piece, wherein a supporting seat is arranged vertically in the machine brake, the driving piece is arranged on the supporting seat, one end of the output shaft is connected with the output end of the driving piece, the other end of the output shaft extends to the air inlet, the first turbine is arranged at one end, close to the air inlet, of the output shaft, and the first