CN210623125U - High-temperature gas conveying fan based on Venturi effect - Google Patents
High-temperature gas conveying fan based on Venturi effect Download PDFInfo
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- CN210623125U CN210623125U CN201921644744.1U CN201921644744U CN210623125U CN 210623125 U CN210623125 U CN 210623125U CN 201921644744 U CN201921644744 U CN 201921644744U CN 210623125 U CN210623125 U CN 210623125U
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Abstract
The utility model discloses a high temperature gas conveying fan based on venturi effect, include the cylindric casing and be located motor and impeller in the cylindric casing, the cylindric casing includes the mixed section that the bore gradually dwindles gradually convergent, bore that dwindles gradually and expands gradually along the air-out direction in proper order and the diffusion section that the bore expands gradually, the mixed section lateral wall is provided with the air inlet, the motor set up in the mixed section, the air inlet is aimed at the motor. When the high-temperature gas conveying fan operates, high-temperature gas generates suction force when flowing through the mixing section, and the external cold gas is sucked from the air inlet and blown to the motor, so that the suction force can be effectively improved through the Venturi effect, and the leakage of the internal high-temperature gas from the air inlet is prevented.
Description
Technical Field
The utility model belongs to the technical field of the fan, specifically a high temperature gas conveying fan based on venturi effect.
Background
A blower is a device for ventilating and conveying gas, and generally includes a wind tube, a motor, and an impeller, wherein the impeller rotates in the wind tube to convey gas in the wind tube in one direction.
When high-temperature gas such as high-temperature flue gas, air or steam is conveyed, the motor is heated by the high-temperature gas in the air duct, so that the heat dissipation of the motor is difficult, and the motor can run at high temperature for a long time, so that the service life of the motor is obviously shortened.
The applicant discloses, in another patent document, a high-temperature delivery fan of the type comprising a cylindrical casing, a motor and an impeller located inside said casing, a plurality of mounting ports are arranged on the periphery of the cylindrical shell, hollow positioning pipes are arranged on the mounting ports in the radial direction in the cylindrical shell, the hollow positioning pipe is connected with a motor installation shell, the motor installation shell closes an opening in the air outlet direction in the air inlet direction, the motor is fixed in the motor mounting shell, the hollow positioning pipe is communicated with the motor mounting shell, when the fan is started to convey high-temperature gas, meanwhile, the air in the motor installation shell is attracted to flow, so that the air with lower external temperature flows into the motor installation shell from the hollow positioning pipe, dispel the heat to the motor, the radiating efficiency is showing and is promoting, can effectively promote the life of motor. However, the high-temperature gas conveying fan has disadvantages that the cooling effect of the motor is reduced due to insufficient suction in the hollow positioning pipe, and even high-temperature gas conveyed in the cylindrical shell leaks from the hollow positioning pipe.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is not enough to prior art, provide a high-temperature gas conveying fan based on venturi effect, this kind of high-temperature gas conveying fan can cool down the motor through absorbing the outside air to effectively promote the appeal to the outside air, prevent that inside high-temperature gas from leaking from the air inlet.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve: the utility model provides a high temperature gas conveying fan based on venturi effect, includes the cylindric casing and is located motor and impeller in the cylindric casing, the cylindric casing includes the convergent section that the bore gradually reduces gradually, the bore reduces gradually and expands the mixing section of re-expansion and the diffusion section that the bore expands gradually along the air-out direction in proper order, the mixing section lateral wall is provided with the air inlet, the motor set up in the mixing section, the air inlet is aimed at the motor. When the high-temperature gas conveying fan operates, high-temperature gas generates suction force when flowing through the mixing section, and the external cold gas is sucked from the air inlet and blown to the motor, so that the suction force can be effectively improved through the Venturi effect, and the leakage of the internal high-temperature gas from the air inlet is prevented.
In the above technical scheme, preferably, the air inlet to radially be provided with the cavity registration arm in the cylindric casing, the cavity registration arm is connected with motor installation casing, the motor installation casing comes the wind direction and seals the air-out direction opening, motor installation casing internal fixation has the motor, the cavity registration arm with motor installation casing intercommunication, the opening side of motor installation casing is located in the diffuser section.
In the above technical solution, preferably, the motor is disposed at the center of the motor mounting housing, and a gap is formed between the periphery of the motor and the motor mounting housing. Adopt this structure to make the motor can be comparatively even heat dissipation all around, improve the radiating efficiency.
In the above technical solution, preferably, the joint of the hollow positioning tube and the motor installation housing is located on a side wall between the motor and an end face of the motor installation housing. By adopting the structure, the entering cold air can flow through the outer wall of the whole motor when flowing along the air flow, and the heat dissipation efficiency of the motor at each position is ensured.
In the above technical scheme, preferably, the outer side of the mixing section is slidably sleeved with a rotating ring, the rotating ring is provided with a through hole corresponding to the air inlet, and the rotating ring is rotated to adjust the area of the through hole aligned with the air inlet. Adopt this structure can adjust outside air mass flow through the rotation of swivel becket, the open area of cavity registration arm is transferred down in blockking of accessible swivel becket when the high temperature gas temperature of carrying is relatively lower to promote high temperature gas's transport efficiency, the open area of cavity registration arm can be transferred big when the high temperature gas temperature of carrying is relatively higher, thereby promote the radiating efficiency.
Compared with the prior art, the utility model, following beneficial effect has: when the high-temperature gas conveying fan operates, high-temperature gas generates suction force when flowing through the mixing section, and the external cold gas is sucked from the air inlet and blown to the motor, so that the suction force can be effectively improved through the Venturi effect, and the leakage of the internal high-temperature gas from the air inlet is prevented.
Drawings
Fig. 1 is a schematic sectional structure diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic sectional structure diagram of embodiment 2 of the present invention.
Fig. 3 is a schematic sectional view taken along the line a-a in fig. 2.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings: referring to fig. 1, embodiment 1, a high-temperature gas conveying fan based on a venturi effect includes a cylindrical housing 1, and a motor 2 and an impeller 3 located in the cylindrical housing, where the impeller 3 is installed on an output shaft of the motor 2, and in fig. 1, when the motor is started, a wind direction is from left to right, the cylindrical housing 1 sequentially includes a contraction section 11 in which a caliber is gradually reduced and reduced, a mixing section 12 in which the caliber is gradually reduced and then expanded, and a diffusion section 13 in which the caliber is gradually expanded, a side wall of the mixing section 12 is provided with an air inlet 121, the motor 2 is fixedly disposed in the mixing section 12 through a motor bracket, and the air inlet 121 is aligned with the motor 2. The sliding sleeve outside the mixing section 12 is provided with a rotating ring 6, the rotating ring 6 is provided with a through hole 61 corresponding to the air inlet 121, and the rotating ring 6 is rotated to adjust the alignment area of the through hole 61 and the air inlet 121. When the high-temperature gas conveying fan operates, high-temperature gas generates suction force when flowing through the mixing section, and the external cold gas is sucked from the air inlet and blown to the motor, so that the suction force can be effectively improved through the Venturi effect, and the leakage of the internal high-temperature gas from the air inlet is prevented. The open area of cavity registration arm is transferred to blockking of accessible swivel becket when the high-temperature gas temperature of carrying is relatively lower to promote high-temperature gas's transport efficiency, the open area of cavity registration arm can be transferred to when the high-temperature gas temperature of carrying is relatively higher, thereby promote the radiating efficiency.
Referring to fig. 2-3, embodiment 2, a high temperature gas delivery fan based on venturi effect includes a cylindrical housing 1, and a motor 2 and an impeller 3 located in the cylindrical housing, where the impeller 3 is installed on an output shaft of the motor 2 in fig. 1, when the motor is started, a wind direction is from left to right, the cylindrical housing 1 sequentially includes a contraction section 11 with a gradually reduced caliber, a mixing section 12 with a gradually reduced caliber and then expanded, and a diffusion section 13 with a gradually expanded caliber along an air outlet direction, a side wall of the mixing section 12 is provided with an air inlet 121, the motor 2 is disposed in the mixing section 12, the air inlet 121 is radially provided with a hollow positioning pipe 4 toward the inside of the cylindrical housing 1, the hollow positioning pipe 4 is connected with a motor installation housing 5, the air outlet direction of the motor installation housing 5 is closed in an air inlet direction, the motor 2 is fixed in the motor installation housing 5, and the hollow positioning pipe 4 is, the opening side of the motor installation shell 5 is located in the diffusion section 13, the motor 2 is arranged in the center of the motor installation shell 5, gaps are formed between the periphery of the motor 2 and the motor installation shell 5, and the connecting part of the hollow positioning tube 4 and the motor installation shell 5 is located on the side wall between the end faces of the motor 2 and the motor installation shell 5. The sliding sleeve outside the mixing section 12 is provided with a rotating ring 6, the rotating ring 6 is provided with a through hole 61 corresponding to the air inlet 121, and the rotating ring 6 is rotated to adjust the alignment area of the through hole 61 and the air inlet 121.
When the high-temperature gas conveying fan operates, high-temperature gas generates suction force when flowing through the mixing section, and the external cold gas is sucked from the air inlet and blown to the motor, so that the suction force can be effectively improved through the Venturi effect, and the leakage of the internal high-temperature gas from the air inlet is prevented.
When the high-temperature gas conveying fan operates, high-temperature gas generates suction force when flowing through the mixing section, and the external cold gas is sucked from the air inlet and blown to the motor, so that the suction force can be effectively improved through the Venturi effect, and the leakage of the internal high-temperature gas from the air inlet is prevented. The open area of cavity registration arm is transferred to blockking of accessible swivel becket when the high-temperature gas temperature of carrying is relatively lower to promote high-temperature gas's transport efficiency, the open area of cavity registration arm can be transferred to when the high-temperature gas temperature of carrying is relatively higher, thereby promote the radiating efficiency.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A high-temperature gas delivery fan based on Venturi effect comprises a cylindrical shell (1), and a motor (2) and an impeller (3) which are positioned in the cylindrical shell, and is characterized in that: the cylindrical shell (1) sequentially comprises a contraction section (11) with a gradually reduced caliber, a mixing section (12) with a gradually reduced and then expanded caliber and a diffusion section (13) with a gradually expanded caliber along the air outlet direction, an air inlet (121) is formed in the side wall of the mixing section (12), the motor (2) is arranged in the mixing section (12), and the air inlet (121) is aligned to the motor (2).
2. The venturi-effect-based high-temperature gas delivery blower according to claim 1, wherein: air inlet (121) to radially be provided with cavity registration arm (4) in cylindric casing (1), cavity registration arm (4) are connected with motor installation casing (5), motor installation casing (5) incoming wind direction seals air-out direction opening, motor installation casing (5) internal fixation has motor (2), cavity registration arm (4) with motor installation casing (5) intercommunication, the opening side of motor installation casing (5) is located in diffusion section (13).
3. The high temperature gas delivery blower based on venturi effect of claim 2 wherein: the motor (2) is arranged at the center of the motor installation shell (5), and gaps are formed between the periphery of the motor (2) and the motor installation shell (5).
4. The high temperature gas delivery blower based on venturi effect of claim 2 wherein: the connecting part of the hollow positioning tube (4) and the motor mounting shell (5) is positioned on the side wall between the motor (2) and the end surface of the motor mounting shell (5).
5. The high temperature gas delivery blower based on venturi effect of claim 2 wherein: mix section (12) outside slip cover and be equipped with swivel becket (6), be provided with on swivel becket (6) with through-hole (61) that air inlet (121) correspond rotate swivel becket (6) with adjust through-hole (61) with the area that air inlet (121) were aimed at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921644744.1U CN210623125U (en) | 2019-09-29 | 2019-09-29 | High-temperature gas conveying fan based on Venturi effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921644744.1U CN210623125U (en) | 2019-09-29 | 2019-09-29 | High-temperature gas conveying fan based on Venturi effect |
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| Publication Number | Publication Date |
|---|---|
| CN210623125U true CN210623125U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921644744.1U Active CN210623125U (en) | 2019-09-29 | 2019-09-29 | High-temperature gas conveying fan based on Venturi effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557312A (en) * | 2023-05-16 | 2023-08-08 | 绍兴上虞通风机有限公司 | Pressurized humidity control axial flow fan and humidity control method thereof |
-
2019
- 2019-09-29 CN CN201921644744.1U patent/CN210623125U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557312A (en) * | 2023-05-16 | 2023-08-08 | 绍兴上虞通风机有限公司 | Pressurized humidity control axial flow fan and humidity control method thereof |
| CN116557312B (en) * | 2023-05-16 | 2023-11-17 | 绍兴上虞通风机有限公司 | Pressurized humidity control axial flow fan and humidity control method thereof |
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