CN208778298U - A volute fan and its application fan system - Google Patents

A volute fan and its application fan system Download PDF

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Publication number
CN208778298U
CN208778298U CN201821385509.2U CN201821385509U CN208778298U CN 208778298 U CN208778298 U CN 208778298U CN 201821385509 U CN201821385509 U CN 201821385509U CN 208778298 U CN208778298 U CN 208778298U
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China
Prior art keywords
end panel
volute
air inlet
wind
air
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CN201821385509.2U
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Chinese (zh)
Inventor
林炎虎
张淼
肖佰显
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Zhongshan Broad Ocean Motor Co Ltd
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Zhongshan Broad Ocean Motor Co Ltd
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Priority to CN201821385509.2U priority Critical patent/CN208778298U/en
Priority to PCT/CN2019/076272 priority patent/WO2020042550A1/en
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Publication of CN208778298U publication Critical patent/CN208778298U/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The utility model discloses a volute fan and a fan system using the same, wherein the volute fan comprises a volute and a wind wheel, the volute comprises an upper end panel, a lower end panel and a side panel, the wind wheel is arranged in a cavity of the volute, the lower end panel is provided with a first air inlet, the side panel is provided with a first air outlet, the wind wheel comprises an upper wind disc, a lower wind disc and a plurality of blades, the middle part of the lower wind disc is provided with a second air inlet, an air channel is formed between two adjacent blades, the first air inlet, the second air inlet, the air channel and the first air outlet are communicated with the cavity, each blade comprises a blade inner section and a blade outer section, the distance between the top surface of the blade outer section and the first inner side surface of the upper end panel is gradually increased from inside to outside in the radial direction, the arrangement is that the air outlet area of the air flow which comes out from between the upper wind disc and the, the stripping loss of the airflow and the sudden change of the airflow speed and the pressure are avoided, the surge flow is avoided, and the noise and the vibration are avoided.

Description

A kind of spiral case blower and its blower fan system of application
Technical field:
The utility model relates to a kind of spiral case blower and its blower fan systems of application.
Background technique:
As shown in Figure 1 to Figure 3, existing spiral case blower, including spiral case 1a and wind wheel 2a, wind wheel 2a are mounted on spiral case 1a's In cavity, the spiral case 1a includes upper end plate 11a, lower end board 12a and is connected to upper end plate 11a and lower end board 12a Between side panel 13a, lower end board 12a be equipped with the first air inlet 15a, side panel 13a be equipped with the first air outlet 16a, The wind wheel 2a includes windward disk 21a, leeward disk 22a and several blades that connection is in the wind between disk 21a and leeward disk 22a 23a is equipped between the second air inlet 24a, adjacent two blades 23a at the middle part of leeward disk 22a and forms air duct, each blade 23a points are blade inner segment 231a and blade outer segment 232a, belong to blade outer segment 232a radially beyond the blade 23a of windward disk 21a, Belong to blade inner segment 231a, the top surface 2321a and upper end plate of the blade outer segment 232a within the second air inlet 24a The distance between the first medial surface 111a of 11a h1 is equal in radial direction, and the second medial surface 121a of lower end board 12a is Plane.Such structure has the following problems:
Air-flow enters from the first air inlet 15a, flows through between the second air inlet 24a, windward disk 21a and leeward disk 22a Air duct, the air duct between windward disk 21a and leeward disk 22a enter the wind between upper end plate 11a and leeward disk 22a after coming out Road, air-out area increase suddenly, and the removing loss that will cause air-flow is very big, additionally result in air-flow velocity and pressure becomes suddenly Change, asthma stream and biggish rotational noise can be caused, overall efficiency is lower and causes the noise of complete machine and vibration.
Utility model content:
The purpose of the utility model is to provide a kind of spiral case blower and its blower fan system of application, by by blade outer segment The distance between top surface and the medial surface of upper end plate are arranged to be gradually increased in radial directions, can effectively solve air-flow because going out Wind area increases the problem of causing very big air-flow to remove loss and lead to air-flow velocity and pressure suddenly change suddenly, avoids Cause asthma stream and biggish rotational noise, avoids that complete machine is caused to generate noise and vibration, improve overall efficiency.
The purpose of this utility model is achieved by following technical proposals:
A kind of spiral case blower, including spiral case and wind wheel, the spiral case include upper end plate, lower end board and are connected to upper end Side panel between panel and lower end board, upper end plate, lower end board and side panel surround cavity, and wind wheel is mounted on cavity In, the lower end board be equipped with the first air inlet, side panel be equipped with the first air outlet, the wind wheel include windward disk, under Several blades that wind disk and connection are in the wind between disk and leeward disk are equipped with the second air inlet at the middle part of leeward disk, adjacent Air duct is formed between two blades, first air inlet, the second air inlet, air duct, the first air outlet are connected to cavity, the leaf Piece is divided into blade inner segment and blade outer segment, belongs to blade outer segment radially beyond the blade of windward disk, is located within the second air inlet Belong to blade inner segment, the distance between first medial surface of the top surface of the blade outer segment and upper end plate radial direction by Inside become larger outward.
The middle part of upper end plate described above be equipped with to cavity indent recess portion, the outside of upper end plate be by it is interior outward by Gradually offset up.
The top surface 2321 of blade outer segment 232 described above is plane.
The outside of upper end plate described above is a curved slab.
The distance between second medial surface of the bottom surface of blade inner segment described above and lower end board is in radial direction by interior It is first equal outward to become larger again.
The distance between second medial surface of the first end face of leeward disk described above and lower end board radial direction by Inside become larger outward.
The second medial surface and the second lateral surface of lower end board described above are a curved surfaces.
Several installation feet are set on side panel described above, and the second end face of the installation foot is higher by the of lower end board Three end faces.
In the periphery protrusion annular convex platform of the first air inlet described above, the 4th end face of the annular convex platform and installation foot Second end face flush.
A kind of blower fan system, including spiral case blower and motor, the spiral case blower includes spiral case and wind wheel, and motor is mounted on On the upper end plate of spiral case, the output shaft of motor passes through upper end plate and wind wheel is sequentially connected, and the spiral case blower is above-mentioned institute A kind of spiral case blower stated.
The utility model compared with prior art, has the effect that
1) a kind of spiral case blower, including spiral case and wind wheel, the spiral case include upper end plate, lower end board and are connected to Side panel between end plates and lower end board, upper end plate, lower end board and side panel surround cavity, and wind wheel is mounted on cavity In, the lower end board be equipped with the first air inlet, side panel be equipped with the first air outlet, the wind wheel include windward disk, under Several blades that wind disk and connection are in the wind between disk and leeward disk are equipped with the second air inlet at the middle part of leeward disk, adjacent Air duct is formed between two blades, first air inlet, the second air inlet, air duct, the first air outlet are connected to cavity, the leaf Piece is divided into blade inner segment and blade outer segment, belongs to blade outer segment radially beyond the blade of windward disk, is located within the second air inlet Belong to blade inner segment, the distance between first medial surface of the top surface of the blade outer segment and upper end plate radial direction by Inside become larger outward.Air-flow enters from the first air inlet, the second air inlet of approach, and the wind between windward disk and leeward disk Road, which comes out, enters the air duct between leeward disk and upper end plate, due to the top surface of blade outer segment and the first medial surface of upper end plate The distance between become larger, so the air-out area of air-flow is also to be gradually increased, therefore can avoid air-flow Removing loss and air-flow velocity and pressure suddenly change, avoid causing asthma from flowing and biggish rotational noise, avoid causing whole Machine generates noise and vibration, improves overall efficiency.
2) the distance between second medial surface of the bottom surface of blade inner segment and lower end board is in radial direction by interior first outward It is equal to become larger again.Air-flow enters from the first air inlet, between the bottom surface and lower end board of approach blade inner segment, leeward disk with Between lower end board, in this way setting can also increase suddenly to avoid the air-out area of air-flow cause very big air-flow remove lose with And leading to air-flow velocity and pressure suddenly change, effect is more preferable.
3) the distance between second medial surface of first end face and lower end board of leeward disk described above is in radial direction It is become larger outward by interior.Air-flow enters from the first air inlet, between the bottom surface and lower end board of approach blade inner segment, leeward disk Between lower end board, setting can also increase suddenly in this way to avoid the air-out area of air-flow causes very big air-flow to remove loss And leading to air-flow velocity and pressure suddenly change, effect is best.
4) several installation feet are set on the side panels, and installation foot is used for installation load, and the second end face of the installation foot is high The third end face of lower end board out, advantageously reduces the contact surface of load Yu spiral case blower, and load is avoided to occur with spiral case blower Resonance.
5) in the periphery protrusion annular convex platform of the first air inlet, the second of the 4th end face of the annular convex platform and installation foot End face increases the contact area of spiral case blower and load, and the installation for being conducive to load is firm.
6) a kind of blower fan system effectively solves air-flow because of outlet air due to using the spiral case blower of the utility model description Area increases the problem of causing very big air-flow to remove loss and lead to air-flow velocity and pressure suddenly change suddenly, avoids drawing Asthma stream and biggish rotational noise are played, avoids that blower fan system is caused to generate noise and vibration, improves the totality of blower fan system Efficiency.
Detailed description of the invention:
Fig. 1 is the perspective view for the spiral case blower that the utility model background technique provides；
Fig. 2 is the perspective view for another angle of spiral case blower that the utility model background technique provides；
Fig. 3 is the diagrammatic cross-section for the spiral case blower that the utility model background technique provides；
Fig. 4 is the perspective view for the spiral case blower that the utility model embodiment one provides；
Fig. 5 is the perspective view for another angle of spiral case blower that the utility model embodiment one provides；
Fig. 6 is the bottom view for the spiral case blower that the utility model embodiment one provides；
Fig. 7 is the cross-sectional view of A-A in Fig. 6；
Fig. 8 is the partial enlarged view of B in Fig. 7；
Fig. 9 is the partial enlarged view of C in Fig. 7；
Figure 10 is the explosive view for the spiral case blower that the utility model embodiment one provides；
Figure 11 is the perspective view for the blower fan system that the utility model embodiment two provides；
Figure 12 is the diagrammatic cross-section for the blower fan system that the utility model embodiment two provides.
Specific embodiment:
The utility model is described in further detail below by specific embodiment and in conjunction with attached drawing.
Embodiment one:
As shown in Fig. 4 to Figure 10, a kind of spiral case blower, including spiral case 1 and wind wheel 2, the spiral case 1 include upper end plate 11, lower end board 12 and the side panel 13 being connected between upper end plate 11 and lower end board 12, upper end plate 11, lower end board 12 and side panel 13 surround cavity 14, wind wheel 2 is mounted in cavity 14, the lower end board 12 be equipped with the first air inlet 15, Side panel 13 is equipped with the first air outlet 16, and the wind wheel 2 is including windward disk 21, leeward disk 22 and connects 21 and of disk that is in the wind Several blades 23 between leeward disk 22 are equipped with the second air inlet 24, shape between adjacent two blade 23 at the middle part of leeward disk 22 At air duct 25, first air inlet 15, the second air inlet 24, air duct 25, the first air outlet 16 are connected to cavity 14, the leaf Piece 23 divides for blade inner segment 231 and blade outer segment 232, belongs to blade outer segment 232 radially beyond the blade 23 of windward disk 21, is located at Belong to blade inner segment 231, the top surface 2321 of the blade outer segment 232 and the first of upper end plate 11 within second air inlet 24 The distance between medial surface 111 H1 is become larger in radial direction by interior outward.
Preferably, the middle part of the upper end plate 11 is equipped with the recess portion 112 to 14 indent of cavity, the outside of upper end plate 11 113 are gradually offset up outward by interior.
Preferably, the top surface 2321 of the blade outer segment 232 is plane.
Preferably, the outside 113 of the upper end plate 11 is a curved slab.
Preferably, the distance between the second medial surface 121 of the bottom surface 2311 of the blade inner segment 231 and lower end board 12 H2 first equal is become larger in radial direction by interior again outward.
Preferably, the distance between the second medial surface 121 of first end face 221 Yu lower end board 12 of the leeward disk 22 H3 is become larger in radial direction by interior outward.
Preferably, the second medial surface 121 and the second lateral surface 122 of the lower end board 12 are a curved surfaces.
Preferably, several installation feet 131, the second end face 1311 of the installation foot 131 are set on the side panel 13 It is higher by the third end face 124 of lower end board 12.
Preferably, first air inlet 15 periphery protrusion annular convex platform 123, the 4th of the annular convex platform 123 the End face 1231 is flushed with the second end face 1311 of installation foot 131.
Embodiment two:
As is illustrated by figs. 11 and 12, a kind of blower fan system, including spiral case blower and motor 3, the spiral case blower includes snail Shell 1 and wind wheel 2, motor 3 are mounted on the upper end plate 11 of spiral case 1, and the output shaft 31 of motor 3 passes through upper end plate 11 and wind wheel 2 transmission connections, the spiral case blower is a kind of spiral case blower described in embodiment one.
Above embodiments are better embodiment of the invention, and embodiments of the present invention are not limited thereto, other are any Made changes, modifications, substitutions, combinations, simplifications without departing from the spirit and principles of the present invention are equivalent displacement side Formula is included within the scope of the present invention.

Claims (10)

1.一种蜗壳风机，包括蜗壳(1)和风轮(2)，所述蜗壳(1)包括上端面板(11)、下端面板(12)和连接在上端面板(11)和下端面板(12)之间的侧面板(13)，上端面板(11)、下端面板(12)和侧面板(13)围成空腔(14)，风轮(2)安装在空腔(14)里，所述下端面板(12)上设有第一进风口(15)，侧面板(13)上设有第一出风口(16)，所述风轮(2)包括上风盘(21)、下风盘(22)以及连接在上风盘(21)和下风盘(22)之间的若干叶片(23)，在下风盘(22)的中部设有第二进风口(24)，相邻两叶片(23)之间形成风道(25)，所述第一进风口(15)、第二进风口(24)、风道(25)、第一出风口(16)与空腔(14)连通，所述每一叶片(23)包括叶片内段(231)和叶片外段(232)，径向超出上风盘(21)的叶片(23)属于叶片外段(232)，位于第二进风口(24)以内的属于叶片内段(231)，其特征在于：所述叶片外段(232)的顶面(2321)与上端面板(11)的第一内侧面(111)之间的距离H1在径向方向由内往外逐渐变大。1. A volute fan, comprising a volute (1) and a wind wheel (2), the volute (1) comprising an upper end panel (11), a lower end panel (12) and connected to the upper end panel (11) and the lower end panel The side panel (13) between (12), the upper end panel (11), the lower end panel (12) and the side panel (13) enclose a cavity (14), and the wind wheel (2) is installed in the cavity (14) , the lower end panel (12) is provided with a first air inlet (15), the side panel (13) is provided with a first air outlet (16), and the wind wheel (2) includes an upper wind disc (21), a lower wind A disc (22) and a plurality of blades (23) connected between the upper wind disc (21) and the lower wind disc (22), a second air inlet (24) is arranged in the middle of the lower wind disc (22), and two adjacent blades ( 23) An air duct (25) is formed between, and the first air inlet (15), the second air inlet (24), the air duct (25), and the first air outlet (16) are communicated with the cavity (14), Each of the blades (23) includes an inner blade segment (231) and an outer blade segment (232). The blade (23) radially extending beyond the upper wind disk (21) belongs to the outer blade segment (232) and is located at the second air inlet (232). 24) belongs to the inner blade section (231), and is characterized in that: the distance H1 between the top surface (2321) of the outer blade section (232) and the first inner side surface (111) of the upper end panel (11) is within The radial direction gradually increases from the inside to the outside. 2.根据权利要求1所述的一种蜗壳风机，其特征在于：所述上端面板(11)的中部设有向空腔(14)内凹的凹部(112)，上端面板(11)的外部(113)是由内往外逐渐向上偏移。2. A volute fan according to claim 1, characterized in that: the middle part of the upper end panel (11) is provided with a concave part (112) concave into the cavity (14), and the upper end panel (11) is provided with a concave part (112) The outer part (113) is gradually shifted upward from the inside to the outside. 3.根据权利要求2所述的一种蜗壳风机，其特征在于：所述叶片外段(232)的顶面(2321)是平面。3. A volute fan according to claim 2, characterized in that: the top surface (2321) of the outer blade segment (232) is a plane. 4.根据权利要求1或2或3所述的一种蜗壳风机，其特征在于：所述上端面板(11)的外部(113)是个曲面板。4. A volute fan according to claim 1, 2 or 3, characterized in that: the outer portion (113) of the upper end panel (11) is a curved panel. 5.根据权利要求2所述的一种蜗壳风机，其特征在于：所述叶片内段(231)的底面(2311)与下端面板(12)的第二内侧面(121)之间的距离H2在径向方向由内往外先相等再逐渐变大。The volute fan according to claim 2, characterized in that: the distance between the bottom surface (2311) of the inner blade section (231) and the second inner surface (121) of the lower end panel (12) H2 equals first and then increases gradually from the inside to the outside in the radial direction. 6.根据权利要求5所述的一种蜗壳风机，其特征在于：所述下风盘(22)的第一端面(221)与下端面板(12)的第二内侧面(121)之间的距离H3在径向方向由内往外逐渐变大。6. A volute fan according to claim 5, characterized in that: the space between the first end surface (221) of the lower wind disk (22) and the second inner surface (121) of the lower end panel (12) The distance H3 increases gradually from the inside to the outside in the radial direction. 7.根据权利要求6所述的一种蜗壳风机，其特征在于：所述下端面板(12)的第二内侧面(121)和第二外侧面(122)是个曲面。7 . The volute fan according to claim 6 , wherein the second inner side ( 121 ) and the second outer side ( 122 ) of the lower end panel ( 12 ) are curved surfaces. 8 . 8.根据权利要求1或2或3或5或6或7所述的一种蜗壳风机，其特征在于：在所述侧面板(13)上设置若干安装脚(131)，所述安装脚(131)的第二端面(1311)高出下端面板(12)的第三端面(124)。8. A volute fan according to claim 1 or 2 or 3 or 5 or 6 or 7, characterized in that: a plurality of mounting feet (131) are provided on the side panel (13), and the mounting feet The second end face (1311) of (131) is higher than the third end face (124) of the lower end panel (12). 9.根据权利要求8所述的一种蜗壳风机，其特征在于：在所述第一进风口(15)的外围凸出环形凸台(123)，所述环形凸台(123)的第四端面(1231)与安装脚(131)的第二端面(1311)齐平。9. A volute fan according to claim 8, characterized in that: an annular boss (123) protrudes from the periphery of the first air inlet (15), and the second The four end faces (1231) are flush with the second end faces (1311) of the mounting feet (131). 10.一种风机系统，包括蜗壳风机和电机(3)，所述蜗壳风机包括蜗壳(1)和风轮(2)，电机(3)安装在蜗壳(1)的上端面板(11)上，电机(3)的输出轴(31)穿过上端面板(11)与风轮(2)传动连接，其特征在于：所述蜗壳风机是权利要求1至9任意一项权利要求所述的一种蜗壳风机。10. A fan system, comprising a volute fan and a motor (3), the volute fan comprising a volute (1) and a wind wheel (2), the motor (3) being mounted on an upper end panel (11 of the volute (1)) ), the output shaft (31) of the motor (3) passes through the upper end panel (11) and is connected with the wind wheel (2) in a drive, characterized in that: the volute fan is the one according to any one of claims 1 to 9. A volute fan described above.
CN201821385509.2U 2018-08-27 2018-08-27 A volute fan and its application fan system Active CN208778298U (en)

Priority Applications (2)

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CN201821385509.2U CN208778298U (en) 2018-08-27 2018-08-27 A volute fan and its application fan system
PCT/CN2019/076272 WO2020042550A1 (en) 2018-08-27 2019-02-27 Volute fan and fan system using same

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020042550A1 (en) * 2018-08-27 2020-03-05 中山大洋电机股份有限公司 Volute fan and fan system using same

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US8342808B2 (en) * 2006-12-11 2013-01-01 Mitsuba Corporation Cooling fan
US8225623B2 (en) * 2007-03-14 2012-07-24 Mitsubishi Electric Corporation Centrifugal fan, air conditioner
KR20120023319A (en) * 2010-09-02 2012-03-13 엘지전자 주식회사 A turbo fan for air conditioner
CN104074797B (en) * 2013-03-25 2017-05-24 华硕电脑股份有限公司 Impeller and fan using it
JP2018193892A (en) * 2017-05-15 2018-12-06 日本電産株式会社 Blowing apparatus
CN208778298U (en) * 2018-08-27 2019-04-23 中山大洋电机股份有限公司 A volute fan and its application fan system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020042550A1 (en) * 2018-08-27 2020-03-05 中山大洋电机股份有限公司 Volute fan and fan system using same

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