CN219549160U - Pipeline fan - Google Patents
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- CN219549160U CN219549160U CN202320626152.7U CN202320626152U CN219549160U CN 219549160 U CN219549160 U CN 219549160U CN 202320626152 U CN202320626152 U CN 202320626152U CN 219549160 U CN219549160 U CN 219549160U
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- 230000005540 biological transmission Effects 0.000 description 1
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Abstract
The utility model relates to a pipeline fan, which comprises a front shell, a tail shell, a guide shell arranged in the center of the front shell and the tail shell, and a motor arranged in the center of the guide shell, and is characterized in that: the front shell is provided with an air inlet at the center, the tail shell is provided with an air outlet at the center, a centrifugal impeller connected with a motor is arranged in the front of the guide shell, a shell sleeve for fixing the motor is connected at the center of the guide shell, an air guiding cavity communicated with the air outlet is arranged between the inner surface of the guide shell and the shell sleeve, an air guiding ring is detachably connected at the center of the air guiding cavity, an air guiding plate is arranged at the center of the air guiding ring, and a guide plate on the same plane with the air guiding plate is connected at the center of the air guiding cavity; the air inlet direction and the air outlet direction of the pipeline fan are consistent, the pipeline fan is convenient to install in a pipeline for air delivery, meanwhile, the high static pressure of the centrifugal impeller is utilized, the negative pressure air suction effect of air is improved, and the air delivery performance and the working efficiency of the pipeline fan are effectively improved.
Description
Technical Field
The utility model relates to a pipeline fan.
Background
The pipeline fan is a machine which is internally arranged in a pipeline and accelerates air supply, and has the characteristic of unidirectional flow. Fans used in ducted fans are generally of two types, axial fans and centrifugal fans. The axial flow fan basically controls the air quantity by the rotating speed, the application range is in the occasion of low static pressure, and the air inlet direction is consistent with the air outlet direction. The centrifugal fan can be suitable for occasions with high static pressure, but the inlet air is perpendicular to the outlet air. The problem that the air inlet direction and the air outlet direction of the centrifugal fan are vertical influences the working efficiency of the fan, so that the air conveying efficiency is reduced. While the centrifugal fans are used in the market to realize the design of the same-direction transmission, the design structure is unreasonable, the turbulence is serious, and the fan efficiency is low.
If the utility model patent application number is 201910962843.2, the patent name is a centrifugal pipeline fan, and the centrifugal wind wheel, the shell and the divergent pipe sections thereof are adopted for air transportation, and the air inlet and the air outlet are in the same direction through the air guide ring, but turbulence is very easy to occur in the shell in the transportation process of the wind power, the working efficiency of the fan and the transportation effect of the wind power are influenced, and the normal and stable transportation of the wind power is not facilitated.
Disclosure of Invention
The utility model mainly solves the technical problems existing in the prior art, thereby providing the pipeline fan which has the advantages of consistent air inlet and outlet directions, strong air inlet suction force and stable and efficient air outlet.
The utility model relates to a pipeline fan, which comprises a front shell, a tail shell, a guide shell arranged in the centers of the front shell and the tail shell, and a motor arranged in the center of the guide shell, wherein an air inlet is arranged in the center of the front shell, an air outlet with opposite directions to the air inlet is arranged in the center of the tail shell, a centrifugal impeller connected with the motor is arranged in the front of the guide shell, a shell sleeve used for fixing the motor is connected in the center of the guide shell, an air guiding cavity communicated with the air outlet is arranged between the inner surface of the guide shell and the shell sleeve, an air guiding ring is detachably connected in the center of the air guiding cavity, an air guiding plate is arranged in the center of the air guiding ring, and a guide plate which is in the same plane with the air guiding plate is connected in the air guiding cavity.
Preferably, a limiting sleeve is arranged in front of the air guiding shell, one side of the limiting sleeve is clamped in the air guiding cavity, a concave cavity for accommodating the centrifugal impeller is formed in the center of the limiting sleeve, the limiting sleeve is fixedly arranged above the air guiding shell, the air guiding ring in the air guiding cavity is limited and fixed, and meanwhile the concave cavity in the center of the limiting sleeve limits the centrifugal impeller so as to stabilize rotation of the centrifugal impeller.
Preferably, a through hole matched with the air inlet is formed in one side, facing the air inlet, of the centrifugal impeller, and fan blades are arranged in the center of the centrifugal impeller, so that air can enter the centrifugal impeller through the air inlet and the through hole, and air is discharged through the fan blades arranged on the outer side inside the centrifugal impeller in a ring mode, the fan blades are of an arc-shaped structure, a cone-shaped structure for installing a motor shaft is arranged in the center of the centrifugal impeller, the center of the cone-shaped structure of the central part of the centrifugal impeller is arc-shaped, and air guiding can be assisted when the center of the centrifugal impeller is thickened.
As the preference, the air intake is the indent toper structure of opening orientation shell, and the internal surface of preceding shell and the surface of stop collar all are provided with the upset section, the upset section is circular arc structure, and centrifugal impeller is located the central authorities of the upset section department of preceding shell, the air intake design of indent toper structure can improve centrifugal impeller to the air suction of air intake department, effectively improve centrifugal impeller's high static pressure induced draft characteristic, the design of upset section then is convenient for inhaled air through the direction of upset section entering into in the wind-guiding circle simultaneously, effectively avoid the air turbulence problem, improve the air flow direction.
Preferably, the air guide ring comprises an outer ring plate and an inner ring plate, the air guide plate is connected between the outer ring plate and the inner ring plate, the lower surface of the outer ring plate is provided with a groove, the inner ring plate is of an arc-shaped structure and is respectively attached to the limiting sleeve and the shell, the air guide ring is embedded into the air guide cavity and is connected to the shell and the inner ring plate through the limiting sleeve in a clamping manner, meanwhile, the overturning section of the limiting sleeve is attached to the inner surface of the shell through the inner ring plate of the arc-shaped structure, smooth circulation of air is facilitated, and turbulence possibly occurring in the air is effectively reduced.
Preferably, the air guide ring is in clearance fit with the air guide cavity, and the inner surface of the air guide shell is provided with a lug matched with the groove, so that the air guide ring can be positioned through the fit of the lug and the groove when being embedded into the air guide cavity, the air guide plate in the center of the air guide ring can correspond to the drainage plate in the center of the air guide cavity, and air can be conveniently circulated through the air guide plate and the drainage plate.
Preferably, the air guide plate is of an arc-shaped structure, one end of the air guide plate is in the same plane with the drainage plate and is parallel to the air outlet shaft core, an included angle is formed between the other end of the air guide plate and the air inlet shaft core, the included angle is 55-75 degrees, so that air is stably conveyed from the air inlet to the air outlet through the guide of the air guide plate in the air guide ring, and turbulence problems possibly occurring in the air circulation process are effectively avoided, so that air can be conveyed in one direction through the device.
The beneficial effects of the utility model are as follows: because the front shell is provided with the air inlet at the center, the tail shell is provided with the air outlet at the center, and the centrifugal impeller connected with the motor is arranged in front of the guide shell, the motor can drive the high static pressure of the centrifugal impeller, negative pressure suction is realized, and the air is conveyed to be changed into the axial direction of the air inlet from the radial direction of the air inlet through the overturning sections of the front shell and the limiting sleeve, so that the air inlet direction is consistent with the air outlet direction, meanwhile, the air guide ring is embedded in the air guide cavity of the guide shell, the air guide plate in the air guide ring is of an arc-shaped structure, one end of the air guide plate is in the same plane with the air guide plate and is parallel to the air outlet shaft core, an included angle is formed between the other end of the air guide plate and the air inlet shaft core, so that the air enters the air guide ring through the air inlet and is guided through the air guide plate after passing through the overturning sections of the front shell and the limiting sleeve, the air can be discharged in a rotating way, the air circulation rate of the air is effectively improved, and the high static pressure and the negative pressure of the centrifugal impeller is realized, and the radial air flow driven by the centrifugal impeller is converted into axial air flow, the axial air flow is realized, the axial air flow, the air inlet direction and the air inlet direction of the fan is consistent, the air inlet and the air inlet direction and the air inlet and the air outlet direction is high.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a duct fan according to the present utility model;
FIG. 2 is a diagram showing the installation structure of a fan blade, an air guide plate and a drainage plate in a pipeline fan;
FIG. 3 is a cross-sectional view of the overall structure of a duct fan according to the present utility model;
FIG. 4 is an enlarged view of a portion of FIG. 3A;
FIG. 5 is an exploded view of the overall structure of a duct fan according to the present utility model;
FIG. 6 is a schematic diagram of a flow shell in a duct fan according to the present utility model;
fig. 7 is a schematic structural view of a wind guiding ring in a pipeline fan according to the present utility model.
In the figure: front shell 1, air inlet 11, centrifugal impeller 2, flabellum 21, motor 22, stop collar 3, upset section 31, wind guiding circle 4, outer loop board 41, air guiding board 42, inner loop board 43, blower housing 5, shell 51, induced air chamber 52, drainage board 53, lug 54, cabin 55, tail shell 6, air outlet 61.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
The pipeline fan comprises a front shell 1, a tail shell 6, a guide shell 5 and a motor 22, wherein the guide shell 5 is arranged in the center of the front shell 1 and the tail shell 6, the motor 22 is arranged in the center of the guide shell 5, an air inlet 11 is formed in the center of the front shell 1, an air outlet 61 opposite to the air inlet 11 is formed in the center of the tail shell 6, a centrifugal impeller 2 connected with the motor 22 is arranged in the front shell 1 in front of the guide shell 5, a shell 51 used for fixing the motor 22 is connected in the center of the guide shell 5, an air guiding cavity 52 communicated with the air outlet 61 is formed between the inner surface of the guide shell 5 and the shell 51, an air guiding ring 4 is detachably connected in the center of the air guiding cavity 52, an air guiding plate 42 is arranged in the center of the air guiding ring 4, and a drainage plate 53 which is in the same plane with the air guiding plate 42 is connected in the inside of the air guiding cavity 52.
As shown in fig. 2 and fig. 3, a through hole (not labeled) matched with the air inlet 11 is formed in one side, facing the air inlet 11, of the centrifugal impeller 2, and a fan blade 21 is arranged in the center of the centrifugal impeller 2, so that air can enter the centrifugal impeller 2 through the air inlet 11 and the through hole, and is discharged through the fan blade 21 arranged on the outer side inside the centrifugal impeller 2, the fan blade 21 is of an arc-shaped structure, a cone-shaped structure for installing a motor 22 shaft is arranged in the center of the centrifugal impeller 2, and the center of the cone-shaped structure of the center of the centrifugal impeller 2 is arc-shaped, so that air guiding can be assisted while thickening.
As shown in fig. 3 and fig. 4, the front of the air guiding shell 5 is provided with a stop collar 3, one side of the stop collar 3 is clamped in the air guiding cavity 52, a concave cavity (not labeled) for placing the centrifugal impeller 2 is arranged in the center of the stop collar 3, so that the stop collar 3 is fixedly installed above the air guiding shell 5, and the air guiding ring 4 positioned in the air guiding cavity 52 is limited and fixed, and meanwhile, the concave cavity in the center of the stop collar 3 limits the centrifugal impeller 2, so that the centrifugal impeller 2 can be rotated stably.
The air intake 11 is the indent toper structure of opening orientation shell 5, and the internal surface of preceding shell 1 and the surface of stop collar 3 all are provided with upset section 31, upset section 31 is circular arc structure, and centrifugal impeller 2 is located the central authorities of the upset section 31 department of preceding shell 1, the air intake 11 design of indent toper structure can improve centrifugal impeller 2 to the air suction of air intake 11 department, effectively improve centrifugal impeller 2's high static pressure induced draft characteristic, the design of upset section 31 then is convenient for inhaled air to enter into in the wind-guiding circle 4 through upset section 31 direction simultaneously, effectively avoid the air turbulence problem, improve the air flow direction.
As shown in fig. 7, the air guide ring 4 includes an outer ring plate 41 and an inner ring plate 43, the air guide plate 42 is connected between the outer ring plate 41 and the inner ring plate 43, a groove 44 is provided on the lower surface of the outer ring plate 41, the inner ring plate 43 has an arc structure and is respectively attached to the stop collar 3 and the shell 51, so that the air guide ring 4 is embedded into the air guide cavity 52 and is clamped on the shell 51 and the inner ring plate 43 through the stop collar 3, and meanwhile, the overturning section 31 of the stop collar 3 is attached to the inner surface of the shell 51 through the inner ring plate 43 with an arc structure, thereby facilitating smooth circulation of air and effectively reducing possible turbulence of air.
As shown in fig. 4 to 6, the air guiding ring 4 is in clearance fit with the air guiding cavity 52, and the inner surface of the air guiding shell 5 is provided with a protrusion 54 which is mutually matched with the groove 44, so that the air guiding ring 4 can be positioned through the matching of the protrusion 54 and the groove 44 when being embedded into the air guiding cavity 52, the air guiding plate 42 in the center of the air guiding ring 4 can be mutually corresponding to the air guiding plate 53 in the center of the air guiding cavity 52, and the air circulation can be guided through the air guiding plate 42 and the air guiding plate 53 conveniently.
As shown in fig. 2, the air guide plate 42 has an arc structure, one end of the air guide plate 42 is in the same plane with the drainage plate 53 and is parallel to the axis of the air outlet 11, an included angle of 55-75 degrees is arranged between the other end of the air guide plate 42 and the axis of the air inlet 11, so that air is stably conveyed from the air inlet 11 to the air outlet 61 through the guiding of the air guide plate 42 in the air guide ring 4, and turbulence problems possibly occurring in the air circulation process are effectively avoided, so that air can be conveyed in one direction through the device.
The pipeline fan drives the centrifugal impeller 2 to rotate through the motor 22, wherein a machine room 55 for fixing the motor is arranged in the center of the shell 51, a concave cavity (not labeled) for placing the centrifugal impeller 2 is arranged in the center of the limit sleeve 3, and a shaft of the motor 22 passes through the limit sleeve 3 and is connected with an arc-shaped center of a central conical structure of the centrifugal impeller 2, so that air is guided into an air guiding cavity 52 in the guide shell 5 along the front shell 1 and a turnover section 31 of the limit sleeve 3 by rotation of the fan blades 21 in the centrifugal impeller 2, and meanwhile, the air at the air inlet 11 is sucked in under the centrifugal action of the centrifugal impeller 2, so that the air flow can become spiral axial air flow, and the air flow is guided in an air guiding ring 4 in the air guiding cavity 52 along the axial direction, thereby effectively avoiding generation of turbulent flow of the air flow; after entering the inside of the wind guide ring 4, the spiral air flow is led by the air guide plate 42 in a spiral way, so that the air flow can stably flow out in a rotating way, and is discharged by the air outlet 61 through the guiding of the flow guide plate 53 in the air guide cavity 52, so that the air inlet direction is consistent with the air outlet direction.
The beneficial effects of the utility model are as follows: because the front shell is provided with the air inlet at the center, the tail shell is provided with the air outlet at the center, and the centrifugal impeller connected with the motor is arranged in front of the guide shell, the motor can drive the high static pressure of the centrifugal impeller, negative pressure suction is realized, and the air is conveyed to be changed into the axial direction of the air inlet from the radial direction of the air inlet through the overturning sections of the front shell and the limiting sleeve, so that the air inlet direction is consistent with the air outlet direction, meanwhile, the air guide ring is embedded in the air guide cavity of the guide shell, the air guide plate in the air guide ring is of an arc-shaped structure, one end of the air guide plate is in the same plane with the air guide plate and is parallel to the air outlet shaft core, an included angle is formed between the other end of the air guide plate and the air inlet shaft core, so that the air enters the air guide ring through the air inlet and is guided through the air guide plate after passing through the overturning sections of the front shell and the limiting sleeve, the air can be discharged in a rotating way, the air circulation rate of the air is effectively improved, and the high static pressure and the negative pressure of the centrifugal impeller is realized, and the radial air flow driven by the centrifugal impeller is converted into axial air flow, the axial air flow is realized, the axial air flow, the air inlet direction and the air inlet direction of the fan is consistent, the air inlet and the air inlet direction and the air inlet and the air outlet direction is high.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims (7)
1. The utility model provides a pipeline fan, includes preceding shell and tail shell, and set up the shell at preceding shell and tail shell central authorities, and set up the motor at shell central authorities, its characterized in that: the front shell is provided with an air inlet at the center, the tail shell is provided with an air outlet with opposite direction to the air inlet, the front part of the guide shell is provided with a centrifugal impeller connected with a motor, the center of the guide shell is connected with a shell sleeve for fixing the motor, and an air guiding cavity communicated with the air outlet is arranged between the inner surface of the air guiding shell and the shell sleeve, the center of the air guiding cavity is detachably connected with an air guiding ring, the center of the air guiding ring is provided with an air guiding plate, and the inside of the air guiding cavity is connected with a drainage plate which is in the same plane with the air guiding plate.
2. A duct fan as claimed in claim 1, wherein: the front of the guide shell is provided with a limit sleeve, one side of the limit sleeve is clamped in the induced air cavity, and the center of the limit sleeve is provided with a concave cavity for placing the centrifugal impeller.
3. A duct fan as claimed in claim 2, wherein: and a through hole matched with the air inlet is formed in one side of the centrifugal impeller, facing the air inlet, and fan blades are arranged in the center of the centrifugal impeller.
4. A duct fan as claimed in claim 3, wherein: the air inlet is of a concave conical structure with an opening facing the guide shell, the inner surface of the front shell and the outer surface of the limiting sleeve are both provided with overturning sections, and the overturning sections are of arc structures.
5. A duct fan as claimed in claim 1, wherein: the air guide ring comprises an outer ring plate and an inner ring plate, the air guide plate is connected between the outer ring plate and the inner ring plate, a groove is formed in the lower surface of the outer ring plate, and the inner ring plate is of an arc-shaped structure and is respectively attached to the limiting sleeve and the shell sleeve.
6. A duct fan as claimed in claim 5, wherein: the air guide ring is in clearance fit with the air guide cavity, and the inner surface of the air guide shell is provided with a lug matched with the groove.
7. A duct fan as claimed in claim 1, wherein: the air guide plate is of an arc-shaped structure, one end of the air guide plate is in the same plane with the drainage plate and is parallel to the air outlet shaft core, an included angle is formed between the other end of the air guide plate and the air inlet shaft core, and the included angle is 55-75 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320626152.7U CN219549160U (en) | 2023-03-27 | 2023-03-27 | Pipeline fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320626152.7U CN219549160U (en) | 2023-03-27 | 2023-03-27 | Pipeline fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219549160U true CN219549160U (en) | 2023-08-18 |
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ID=87730543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320626152.7U Active CN219549160U (en) | 2023-03-27 | 2023-03-27 | Pipeline fan |
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| Country | Link |
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| CN (1) | CN219549160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025175983A1 (en) * | 2024-02-22 | 2025-08-28 | 广东美的环境电器制造有限公司 | Fan and fan control method |
-
2023
- 2023-03-27 CN CN202320626152.7U patent/CN219549160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025175983A1 (en) * | 2024-02-22 | 2025-08-28 | 广东美的环境电器制造有限公司 | Fan and fan control method |
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