CN219388240U - High-efficiency energy-saving centrifugal fan - Google Patents
High-efficiency energy-saving centrifugal fan Download PDFInfo
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- CN219388240U CN219388240U CN202223525698.8U CN202223525698U CN219388240U CN 219388240 U CN219388240 U CN 219388240U CN 202223525698 U CN202223525698 U CN 202223525698U CN 219388240 U CN219388240 U CN 219388240U
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- connecting rod
- guide
- box body
- angle adjusting
- volute
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model belongs to the technical field of ventilators, in particular to a high-efficiency energy-saving centrifugal fan, which comprises a base, wherein a motor and a volute are arranged on the base, the volute is positioned on one side of an output shaft of the motor, a fan blade is arranged in the volute, the output shaft of the motor is connected with the fan blade, and a guide ring is arranged on one side of the volute away from the motor; the guide ring comprises a circular guide shell, guide vanes and an angle adjusting device, the guide vanes are of fan-shaped structures, one arc-shaped side face of each guide vane is rotationally connected with the guide shell, the other symmetrical side face is connected with the angle adjusting device, the deflection angle of each guide vane is adjusted through the angle adjusting device, the air inlet quantity of the fan can be adjusted through guide vane rotation, so that the fan can be adapted to air quantity change, and high-efficiency operation can be kept.
Description
Technical Field
The utility model relates to the technical field of ventilators, in particular to a high-efficiency energy-saving centrifugal fan.
Background
The centrifugal fan belongs to one of impeller machines, is widely applied to various fields of energy sources, environment, aviation and the like, and is one of main energy consumption equipment in industrial and agricultural production. The centrifugal ventilator forms negative pressure inside the blower by means of rotation of the impeller to suck the outside air and exhaust the air out of the blower through the impeller flow passage and the volute.
At present, a centrifugal ventilator mainly comprises a casing, an impeller, a crankshaft, a guide ring, a motor, a base and other parts. The air guide is a part of the centrifugal fan air inlet for adjusting the fan load, and the main function is to ensure that the air flow uniformly enters the impeller. The performance of the fan can be changed by changing the angle (opening) of the guide vane of the flow director, the working range is enlarged, the adjusting economy is improved, the internal flow condition of the impeller can be improved, the overall efficiency of the fan is greatly improved, and the purpose of energy conservation is achieved.
The existing centrifugal fan impeller blade is fixed in size, the angle of the guide vane inside can be adjusted only after the volute is detached, and the operation is extremely inconvenient.
Aiming at the problems, the utility model provides a high-efficiency energy-saving centrifugal fan.
Disclosure of Invention
The utility model provides a high-efficiency energy-saving centrifugal fan, which drives an angle adjusting device through hydraulic oil so as to drive a guide vane to rotate, thereby adjusting the deflection angle of the guide vane and adjusting the air inlet quantity of the fan. According to the utility model, the angle of the guide vane of the guide ring is adjusted to adapt to the change of the air quantity, so that the fan can be operated with high efficiency.
The utility model provides the following technical scheme:
the efficient energy-saving centrifugal fan comprises a base, wherein a motor and a volute are arranged on the base, the volute is positioned on one side of an output shaft of the motor, a fan blade is arranged in the volute, the output shaft of the motor is connected with the fan blade, and a guide ring is arranged on one side of the volute away from the motor; the guide ring comprises a circular guide shell, guide vanes and an angle adjusting device, the guide vanes are of fan-shaped structures, one arc-shaped side face of each guide vane is rotationally connected with the guide shell, the other symmetrical side face is connected with the angle adjusting device, and the deflection angle of each guide vane is adjusted through the angle adjusting device.
Further, angle adjusting device includes hollow cylindric box body, the box body side runs through and is provided with the rocking arm, and the rocking arm is located the inside one end of box body and is the cylinder structure, and the outside one end of box body is the rectangular cylinder structure, the corresponding position of stator is opened there is with rectangular cylinder structure assorted rectangular hole for the rocking arm can drive the stator and rotate, be equipped with hydraulic pressure adjusting part and link mechanism in the box body, link mechanism links to each other with the rocking arm, hydraulic pressure adjusting part links to each other with link mechanism.
Further, the hydraulic adjusting assembly comprises a hydraulic cavity, the hydraulic cavity is composed of a side plate with a cylindrical structure, a sealing plate and a cover plate, the side plate is formed by the concave of one end face of the box body, the sealing plate is arranged at the concave of the end face of the box body, and the cover plate is fixedly arranged on the end face of the side plate; the hydraulic cavity is internally provided with a piston, a first oil pipeline is arranged on the cover plate in a penetrating manner, one end of the first oil pipeline is connected with the sealing plate, an oil conveying hole is formed in the side wall close to the end, the other end of the first oil pipeline penetrates through the side wall of the box body, a second oil pipeline is connected to the side plate of the hydraulic cavity close to the cover plate, and the other end of the second oil pipeline penetrates through the side wall of the box body; the hydraulic cavity is also internally provided with an angle adjusting bracket, and the hydraulic cavity is connected with the connecting rod mechanism through the angle adjusting bracket.
Further, the angle adjusting bracket comprises a movable shaft sleeve and a connecting rod arranged on the side wall of the movable shaft sleeve, the movable shaft sleeve is sleeved on a first oil pipeline of which the oil pipeline is positioned in the hydraulic cavity, the piston is fixedly arranged on the outer side wall of the movable shaft sleeve, and the piston is flush with the end face of the movable shaft sleeve, which is close to the sealing plate; the connecting rod is connected with the connecting rod mechanism.
Further, the connecting rod mechanism comprises a fixed rod, a first connecting rod and a second connecting rod, one end of the fixed rod is connected with the connecting rod, the other end of the fixed rod is hinged with one end of the first connecting rod, the other end of the first connecting rod is hinged with one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected with one end of the rotating arm, which is positioned in the box body; one end of a return spring is connected to the hinge joint of the first connecting rod and the second connecting rod, and the other end of the return spring is fixedly connected to the inner side wall of one end face of the box body, provided with the sealing plate.
Furthermore, a positioning rotating shaft is fixedly arranged on the inner side wall of the guide shell, positioning holes matched with the positioning rotating shaft are formed in corresponding positions of the guide vanes, and the guide vanes are in rotary connection with the guide shell through the positioning holes matched with the positioning rotating shaft.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
According to the utility model, oil is conveyed through the two oil conveying pipes, the oil pressure above and below the piston is regulated, the position of the piston in the hydraulic cavity is regulated due to the pressure difference of hydraulic oil, the piston moves to drive the angle regulating bracket to move up and down, the angle regulating bracket moves to pull the link mechanism to rotate, the rotating arm is driven to rotate, the rotating arm is fixedly connected with the guide vane to drive the guide vane to rotate, the air inlet quantity of the fan can be regulated by the rotation of the guide vane, and the change of the air inlet quantity is adapted to the change of the air quantity, so that the fan can operate at high efficiency.
Drawings
FIG. 1 is a schematic diagram of a high-efficiency energy-saving centrifugal fan according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a front view structure of a guide ring in a high-efficiency energy-saving centrifugal fan according to an embodiment of the present utility model;
FIG. 3 is a schematic side view of a deflector ring in a high efficiency energy saving centrifugal fan according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of an angle adjusting device in a high-efficiency energy-saving centrifugal fan according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a link mechanism in a high-efficiency energy-saving centrifugal fan according to an embodiment of the present utility model.
Reference numerals:
1. a guide ring; 101. a diversion shell; 102. an angle adjusting device; 103. a guide vane; 1021. a case body; 1022. a hydraulic chamber; 1023. a rotating arm; 1024. an angle adjusting bracket; 1025. a piston; 1026. a first oil delivery line; 1027. a second oil delivery line; 1028. a link mechanism; 10281. a fixed rod; 10282. a first link; 10283. a second link; 10284. and a return spring.
Detailed Description
Embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.
In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present utility model are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present utility model, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present utility model.
In embodiments of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the embodiment of the present utility model, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Referring to FIG. 1, a high-efficiency energy-saving centrifugal fan comprises a base, wherein a motor and a volute are arranged on the base, the volute is positioned on one side of an output shaft of the motor, a fan blade is arranged in the volute, the output shaft of the motor is connected with the fan blade, and a diversion ring 1 is arranged on one side of the volute away from the motor; the guide ring 1 comprises a circular guide shell 101, guide vanes 103 and an angle adjusting device 102, wherein the guide vanes 103 are of a fan-shaped structure, one arc-shaped side surface of each guide vane 103 is rotationally connected with the guide shell 101, the other symmetrical side surface is connected with the angle adjusting device 102, and the deflection angle of each guide vane 103 is adjusted through the angle adjusting device 102. The motor drives the fan blade to rotate, gas enters the volute from the guide ring 1 at one side of the volute, then the gas is changed into radial through the rotation of the fan blade, the guide vanes 103 of the guide ring 1 are used for ensuring that the gas flow uniformly enters the volute, the guide vanes 103 adapt to the change of the air quantity, the fan is enabled to work in a positive word efficient mode, and the angle of the guide vanes 103 is adjusted through the angle adjusting device 102.
As shown in fig. 2 and 3, the angle adjusting device 102 includes a hollow cylindrical box 1021, a rotating arm 1023 is disposed on a side surface of the box 1021 in a penetrating manner, one end of the rotating arm 1023, which is located inside the box 1021, is in a cylindrical structure, one end, which is located outside the box 1021, is in a rectangular cylindrical structure, a rectangular hole, which is matched with the rectangular cylindrical structure, is formed in a corresponding position of the guide vane 103, the rotating arm 1023 can drive the guide vane 103 to rotate, a hydraulic adjusting assembly and a connecting rod mechanism 1028 are disposed in the box 1021, the connecting rod mechanism 1028 is connected with the rotating arm 1023, and the hydraulic adjusting assembly is connected with the connecting rod mechanism 1028. One side of the guide vane 103 is rotationally connected with the guide shell 101, the other side of the guide vane 103 is connected with the rotating arm 1023, the hydraulic adjusting component drives the connecting rod mechanism 1028 to move so as to drive the rotating arm 1023 to rotate, and meanwhile, the guide vane 103 connected with the rotating arm 1023 also rotates.
As shown in fig. 4, the hydraulic adjusting assembly comprises a hydraulic cavity 1022, wherein the hydraulic cavity 1022 is composed of a side plate with a cylindrical structure, a sealing plate and a cover plate, the side plate is formed by the inward concave of one end face of the box 1021, the sealing plate is arranged at the inward concave of the end face of the box 1021, and the cover plate is fixedly arranged on the end face of the side plate; a piston 1025 is arranged in the hydraulic cavity 1022, a first oil pipeline 1026 is arranged on the cover plate in a penetrating manner, one end of the first oil pipeline 1026 is connected with the sealing plate, an oil hole is formed in the side wall close to the end, the other end of the first oil pipeline passes through the side wall of the box body 1021, a second oil pipeline 1027 is connected to the side plate of the hydraulic cavity 1022 close to the cover plate, and the other end of the second oil pipeline 1027 passes through the side wall of the box body 1021; also disposed within hydraulic chamber 1022 is an angle adjustment bracket 1024, and hydraulic chamber 1022 is coupled to a linkage 1028 via angle adjustment bracket 1024. Can carry the piston 1025 below in the hydraulic pressure chamber 1022 with hydraulic oil through first oil pipeline 1026, can carry the piston 1025 top in the hydraulic pressure chamber 1022 with hydraulic oil through second oil pipeline 1027, through the hydraulic oil of adjusting first oil pipeline 1026 and second oil pipeline 1027 transport, and then adjust the hydraulic pressure of piston 1025 top and below, make piston 1025 reciprocate in the hydraulic pressure chamber 1022 under the effect of hydraulic pressure difference, piston 1025 removes and drives the angle modulation support 1024 that links firmly with it and reciprocate, drive link mechanism 1028 simultaneously and remove, and then drive rocking arm 1023 and rotate, make stator 103 also rotate, reach the purpose of stator 103 angle modulation.
The angle adjusting bracket 1024 comprises a movable shaft sleeve and a connecting rod arranged on the side wall of the movable shaft sleeve, the movable shaft sleeve is sleeved on a first oil pipeline 1026 of the oil pipeline in the hydraulic cavity 1022, a piston 1025 is fixedly arranged on the outer side wall of the movable shaft sleeve, and the piston 1025 is flush with the end surface of the movable shaft sleeve, which is close to the sealing plate; the connecting rod is connected with a link mechanism 1028. The piston 1025 is fixedly connected with the movable shaft sleeve, the piston 1025 moves and drives the movable shaft sleeve to move, so that the movable shaft sleeve moves up and down along the first conveying pipeline, the connecting rod is driven to move together, the connecting rod moves to pull the connecting rod mechanism 1028, and the rotating arm 1023 is further rotated.
As shown in fig. 5, the link mechanism 1028 includes a fixed rod 10281, a first link 10282 and a second link 10283, one end of the fixed rod 10281 is connected with the connecting rod, the other end is hinged with one end of the first link 10282, the other end of the first link 10282 is hinged with one end of the second link 10283, and the other end of the second link 10283 is rotatably connected with one end of the rotating arm 1023 located in the case 1021; one end of a return spring 10284 is connected to the hinge joint of the first link 10282 and the second link 10283, and the other end of the return spring 10284 is fixedly connected to the inner side wall of one end face of the case 1021 provided with the sealing plate. The connecting rod moves and pulls the fixed rod 10281, the fixed rod 10281 moves and pulls the first connecting rod 10282 and the second connecting rod 10283 to move, the rotating arm 1023 is driven to rotate, the connecting position of the connecting rod with the first connecting rod 10282 and the second connecting rod 10283 is acted by the reset spring 10284, the first connecting rod 10282 and the second connecting rod 10283 can be reset, and the guide vane 103 is reset.
The guide shell 101 is fixedly provided with a positioning rotating shaft on the inner side wall, positioning holes matched with the positioning rotating shaft are formed in corresponding positions of the guide vanes 103, and the guide vanes 103 are rotatably connected with the guide shell 101 through the positioning holes matched with the positioning rotating shaft. The guide vane 103 rotates on the positioning shaft when rotating.
Example 1
When the hydraulic oil conveyed by the first oil conveying pipeline 1026 is greater than the hydraulic oil conveyed by the second oil conveying pipeline 1027, the oil pressure below the piston 1025 in the hydraulic cavity 1022 is greater than the oil pressure above the piston 1025, the piston 1025 moves upwards, the movable shaft sleeve is driven to move upwards, meanwhile, the connecting rod also moves upwards, the fixed rod 10281 fixedly connected with the connecting rod is driven to move upwards, the first connecting rod 10282 and the second connecting rod 10283 are pulled to move upwards, the rotating arm 1023 rotates anticlockwise, the guide vane 103 is driven to rotate anticlockwise, and the rotating angle of the guide vane 103 can be adjusted by respectively adjusting the quantity of the hydraulic oil conveyed by the first oil conveying pipeline 1026 and the second oil conveying pipeline 1027.
Example 2
When the hydraulic oil conveyed by the first oil conveying pipeline 1026 is smaller than the hydraulic oil conveyed by the second oil conveying pipeline 1027, the oil pressure below the piston 1025 in the hydraulic cavity 1022 is smaller than the oil pressure above the piston 1025, the piston 1025 moves downwards, the movable shaft sleeve is driven to move downwards, meanwhile, the connecting rod also moves downwards, the fixed rod 10281 fixedly connected with the connecting rod is driven to move downwards, the first connecting rod 10282 and the second connecting rod 10283 are pulled to move downwards, the rotating arm 1023 is rotated clockwise, the guide vane 103 is driven to rotate clockwise, and the rotating angle of the guide vane 103 can be adjusted by respectively adjusting the quantity of the hydraulic oil conveyed by the first oil conveying pipeline 1026 and the second oil conveying pipeline 1027.
The present utility model is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present utility model, and the changes or substitutions are intended to be covered by the scope of the present utility model; embodiments of the utility model and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (6)
1. The efficient energy-saving centrifugal fan is characterized by comprising a base, wherein a motor and a volute are arranged on the base, the volute is positioned on one side of an output shaft of the motor, a fan blade is arranged in the volute, the output shaft of the motor is connected with the fan blade, and a guide ring is arranged on one side of the volute away from the motor; the guide ring comprises a circular guide shell, guide vanes and an angle adjusting device, the guide vanes are of fan-shaped structures, one arc-shaped side face of each guide vane is rotationally connected with the guide shell, the other symmetrical side face is connected with the angle adjusting device, and the deflection angle of each guide vane is adjusted through the angle adjusting device.
2. The efficient energy-saving centrifugal fan according to claim 1, wherein the angle adjusting device comprises a hollow cylindrical box body, a rotating arm penetrates through the side surface of the box body, one end of the rotating arm, which is positioned in the box body, is of a cylindrical structure, one end, which is positioned outside the box body, is of a rectangular cylinder structure, rectangular holes matched with the rectangular cylinder structure are formed in corresponding positions of the guide vanes, the rotating arm can drive the guide vanes to rotate, a hydraulic adjusting assembly and a connecting rod mechanism are arranged in the box body, the connecting rod mechanism is connected with the rotating arm, and the hydraulic adjusting assembly is connected with the connecting rod mechanism.
3. The efficient energy-saving centrifugal fan according to claim 2, wherein the hydraulic adjusting assembly comprises a hydraulic cavity, the hydraulic cavity is composed of a side plate with a cylindrical structure, a sealing plate and a cover plate, the side plate is formed by a concave surface of one end face of the box body, the sealing plate is arranged at a concave surface of the end face of the box body, and the cover plate is fixedly arranged on the end face of the side plate; the hydraulic cavity is internally provided with a piston, a first oil pipeline is arranged on the cover plate in a penetrating manner, one end of the first oil pipeline is connected with the sealing plate, an oil conveying hole is formed in the side wall close to the end, the other end of the first oil pipeline penetrates through the side wall of the box body, a second oil pipeline is connected to the side plate of the hydraulic cavity close to the cover plate, and the other end of the second oil pipeline penetrates through the side wall of the box body; the hydraulic cavity is also internally provided with an angle adjusting bracket, and the hydraulic cavity is connected with the connecting rod mechanism through the angle adjusting bracket.
4. The efficient energy-saving centrifugal fan according to claim 3, wherein the angle adjusting bracket comprises a movable shaft sleeve and a connecting rod arranged on the side wall of the movable shaft sleeve, the movable shaft sleeve is sleeved on a first oil pipeline of the oil pipeline in the hydraulic cavity, the piston is fixedly arranged on the outer side wall of the movable shaft sleeve, and the piston is flush with the end face of the movable shaft sleeve, which is close to the sealing plate; the connecting rod is connected with the connecting rod mechanism.
5. The efficient and energy-saving centrifugal fan according to claim 4, wherein the link mechanism comprises a fixed rod, a first link rod and a second link rod, one end of the fixed rod is connected with the connecting rod, the other end of the fixed rod is hinged with one end of the first link rod, the other end of the first link rod is hinged with one end of the second link rod, and the other end of the second link rod is rotatably connected with one end of the rotating arm in the box body; one end of a return spring is connected to the hinge joint of the first connecting rod and the second connecting rod, and the other end of the return spring is fixedly connected to the inner side wall of one end face of the box body, provided with the sealing plate.
6. The efficient and energy-saving centrifugal fan according to claim 5, wherein a positioning rotating shaft is fixedly arranged on the inner side wall of the guide shell, positioning holes matched with the positioning rotating shaft are formed in corresponding positions of the guide vanes, and the guide vanes are rotatably connected with the guide shell through the positioning rotating shaft matched with the positioning holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223525698.8U CN219388240U (en) | 2022-12-28 | 2022-12-28 | High-efficiency energy-saving centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223525698.8U CN219388240U (en) | 2022-12-28 | 2022-12-28 | High-efficiency energy-saving centrifugal fan |
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| Publication Number | Publication Date |
|---|---|
| CN219388240U true CN219388240U (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223525698.8U Active CN219388240U (en) | 2022-12-28 | 2022-12-28 | High-efficiency energy-saving centrifugal fan |
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| CN (1) | CN219388240U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117662524A (en) * | 2024-01-29 | 2024-03-08 | 诺顿风机(潍坊)有限公司 | Movable vane adjustable axial flow fan with movable guide vane |
-
2022
- 2022-12-28 CN CN202223525698.8U patent/CN219388240U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117662524A (en) * | 2024-01-29 | 2024-03-08 | 诺顿风机(潍坊)有限公司 | Movable vane adjustable axial flow fan with movable guide vane |
| CN117662524B (en) * | 2024-01-29 | 2024-04-23 | 诺顿风机(潍坊)有限公司 | Movable vane adjustable axial flow fan with movable guide vane |
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