EP4153863A1 - Rohrventilator ausgeführt als radialventilator - Google Patents
Rohrventilator ausgeführt als radialventilatorInfo
- Publication number
- EP4153863A1 EP4153863A1 EP21733754.2A EP21733754A EP4153863A1 EP 4153863 A1 EP4153863 A1 EP 4153863A1 EP 21733754 A EP21733754 A EP 21733754A EP 4153863 A1 EP4153863 A1 EP 4153863A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shell
- fan according
- motor mount
- blow
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
- F04D17/165—Axial entry and discharge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
-
- 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
-
- 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
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- 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
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- 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
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4253—Fan casings with axial entry and discharge
-
- 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
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
-
- 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
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid 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
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
-
- 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
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/665—Sound attenuation by means of resonance chambers or interference
Definitions
- Tube fan designed as a radial fan
- the invention relates to a tube fan, in particular designed as a radial fan with a motor and a radial impeller.
- Tube fans are used to generate an air flow through the tube arrangement within a tube arrangement with a predetermined tube diameter.
- in-line Tube fans are used to generate an air flow through the tube arrangement within a tube arrangement with a predetermined tube diameter.
- Tube fans in which the maximum housing diameter of the tube fan corresponds to that of the tube diameter of the tube arrangement speaks.
- Axial fans and diagonal fans in particular are used for this application. Your advantage lies in the compact design with good flow control. However, they do not reach the pressure and efficiency of a centrifugal fan. This is why axial fans and diagonal fans are used for high volume flows at low pressures.
- the housing diameter of the housing accommodating the radial fan is always significantly larger than the tube diameter of the tube arrangement. An in-line variant is therefore not possible with radial fans.
- the invention is expressly aimed at a tubular fan, in particular designed as a radial fan. It is known in the prior art to construct the housing in multiple parts and to integrate the motor mount for the motor of the radial fan in the outlet-side housing part.
- the centrifugal impeller of the centrifugal fan promotes a volume flow that is blown unaffected into the exhaust-side housing part and then into the adjacent pipe arrangement. This leads to recirculation zones and detachments of the flow in the exhaust-side housing part, which have a negative effect on both efficiency and noise.
- the invention is therefore based on the object of providing a tubular fan designed as a radial fan whose flow guidance is improved in such a way that its efficiency is increased and at the same time noise is reduced.
- a tubular fan is proposed, in particular designed as a radial fan with a motor and a radial impeller, which comprises a housing with an intake shell on the intake side, which defines an intake section and accommodates the radial impeller, and a blow-out shell on the outlet side, which defines a blow-out section.
- a cup-shaped motor mount for fixedly receiving the motor is arranged in the exhaust cup.
- a continuous flow channel to the blow-out section is formed between the engine mount and the blow-out shell, through which a flow generated by the radial impeller during operation is guided.
- the housing of the tube fan is attached to the adjacent tube arrangement through which the flow is to run.
- the suction shell and exhaust shell determine the larger diameter compared to the pipe arrangement.
- the respective shell shape of the intake shell and outlet shell provides the widening to an enlarged diameter and the subsequent narrowing with the reduction of the diameter to that of the pipe system.
- at least partially shell-shaped Mo torhalter in the outlet shell is for the flow generated by the radial fan he testified to the flow channel and thus a defined flow path from the radial impeller to the outlet section is generated, which minimizes recirculation zones and flow separations. This has a positive effect on efficiency and reduces noise.
- tubular fan also provides that a plurality of guide struts distributed in the circumferential direction are arranged in the flow duct.
- the guide struts are preferably designed as radial struts with guide surfaces for the flow extending through the flow channel.
- An advantageous embodiment of the tube fan is one in which the guide struts extend from an outer lateral surface of the motor mount to an inner wall surface of the exhaust shell and subdivide the flow duct into a plurality of individual ducts in the circumferential direction. Due to the radial extension of the guide struts from wall to wall, the individual channels are closed and are preferably only brought together again in the blow-out section.
- a preferred variant is characterized in that the guide struts are formed in one piece on the motor mount. This reduces the number of parts and the effort required to assemble the motor mount on the outer shell.
- the engine mount could often be formed in one piece with the blow-out shell.
- the motor mount is designed as a separate part. Nevertheless, for an advantageous and simple assembly possibility, it is provided that receiving grooves are provided on the exhaust shell for the fixed insertion of fastening webs formed on the motor mount.
- the motor mount can thus be fixed in position in the blow-out shell, but is at the same time releasably fastened.
- the receiving grooves are preferably formed in a tubular end section of the blow-out shell, which defines the blow-out section. In this area, the receiving grooves have practically no effect on the flow.
- a design variant of the tube fan is particularly advantageous, in which the fastening webs on the motor mount are formed by the guide struts.
- the guide struts thus assume both the function of guiding the flow through the flow duct and of fastening the motor mount to the exhaust shell.
- the flow channel between the exhaust bowl and the motor mount is ensured by the two shell-shaped wall sections.
- the motor mount comprises a shell with a cross section that tapers in the direction of flow, with the taper essentially corresponding to that of the outer shell, so that the flow channel essentially has a constant flow width.
- the guide struts preferably extend in the axial direction of flow beyond the shell of the motor mount that forms the flow channel, in particular as far as into the blow-out section and thus guide the flow into the adjacent pipe arrangement.
- the shell of the motor mount that forms the flow channel has, in an advantageous embodiment, an axial projection running around in the circumferential direction.
- the axial projection defines an inlet section of the flow channel and protrudes axially in the direction of the radial impeller in relation to the guide struts.
- the guide struts begin their extension in the flow channel at an axial distance from an axial outer edge of the shell of the motor mount.
- An aerodynamically favorable design of the tubular fan also provides that the guide struts are curved in sections in the circumferential direction.
- An arcuately curved course is particularly preferred.
- the curved course is provided in particular in the area of the engine mount where the shell is located.
- the guide struts end running in the axial direction of flow, i.e. parallel to the axis of rotation of the centrifugal fan.
- the noise reduction of the tube fan is positively reinforced by a further development in which a wall section of the shell of the motor mount forming the flow channel is designed to be perforated with through-holes. Noise-reducing insulating material can then be inserted into the shell. be brought.
- the shell of the motor mount has an axially central motor base for mounting the motor and defines a receiving space between an inner wall surface of the perforated wall section and the motor base. This receiving space can be used in the same way for arranging noise-damping insulating material.
- the exhaust shell in the region of the flow channel has a radial widening between the guide struts, viewed in the circumferential direction, which is designed to accommodate noise-damping insulating material.
- a kind of flower shape results from the widening of the exhaust shell, which is distributed in the circumferential direction.
- the radial expansions follow the extension between each two of the guide struts and are therefore preferably likewise curved or twisted in an arc shape in the circumferential direction.
- the noise-damping insulating material is preferably injected directly into the radial expansions on the exhaust shell. Insulating foam, for example, can be used as the insulating material.
- the tube fan is characterized in that a maximum outside diameter of the shell of the motor mount on the intake side is larger than an outside diameter of the radial impeller.
- the suction section defines an inlet nozzle which extends in the axial direction of flow into an inlet opening of the radial impeller.
- an advantageous further development also provides that the intake shell and the exhaust shell are placed one on top of the other. sets can be fixed to one another by a fastening device and thereby define a position of the motor mount in the exhaust shell.
- a fastening device For example, clamps or a bayonet catch can be used as a fastening device.
- the engine mount is positioned between the intake shell and the exhaust shell and is also fixed when they are fixed.
- Fig. 1 shows an embodiment of the Rohrventila tor according to the invention in a sectional view.
- FIG. 1 shows a sectional view of a tubular fan 1 designed as a radial fan.
- the tube fan 1 comprises two housing parts designed as an intake shell 2 on the intake side and a discharge shell 3 on the outlet side.
- the intake shell 2 comprises the tubular intake section 52, and the outlet shell 3 the tubular outlet section 53, via which the tube fan 1 is attached to an external tube arrangement on the inlet side and outlet side.
- the flow diameter of the intake shell 2 and the outlet shell 3 is also significantly larger for the radial fan due to the design.
- the radial fan with its motor 10 and its radial impeller 11 driven by the motor 10 is arranged in the intake shell 2 .
- the radial impeller 11 comprises a cover disk, a base disk and impeller blades running between them. In operation, the radial impeller 11 draws in a flow S axially through the suction section 52 and blows it out radially in the direction of the inner wall surface of the suction shell 2 .
- the motor 10 is on the central axis motor base 22 of the bowl-shaped Motor mount 5 attached, which in turn is added and fixed in the outlet shell 3.
- the shell-shaped motor mount 5 comprises the shell 6, on which the central motor base 22 is integrally formed, and the guide struts 4, which are preferably also integrally formed on the shell 6 in the circumferential direction on the outside. Between the shell 6 of the engine mount 5 and the exhaust shell 3 is the continuous one Flow channel 20 is formed to the blow-out section 53, through which the flow S generated by the radial impeller 11 during operation is guided.
- the flow channel 20 is divided into several individual channels by the guide struts 4 , since the guide struts 4 extend continuously from the outer surface of the shell 6 of the motor mount 5 to the inner wall surface of the exhaust shell 3 . In the downstream area of the shell 6, the individual channels are then combined again to form a flow channel.
- the guide struts 4 extend in the axial direction of flow beyond the shell 6 of the motor mount 5 that forms the flow channel 20 and into the tubular blow-out section 53.
- the guide struts 4 are spaced apart from the axial edge of the shell 6 by the axial projection 12 .
- the axial projection 12 runs parallel to the axis of rotation of the radial fan 11.
- the Einströ determination in the flow channel 20 is therefore initially determined only by the shell 6 and the outlet shell 3. The flow is guided via the guide struts 4 only within the area of the flow channel 20 in which the shell 6 begins to reduce its cross section 11.
- the guide struts 4 are curved in sections in the circumferential direction.
- the preferably arcuate curvature 63 is particularly advantageous, but other constant curvatures, including an S-shaped course, can also be provided as required.
- the direction of curvature is preferably coordinated with the direction of rotation of the radial Fan 11. 1m blow-out section 53 ends the guide struts 4 running parallel to the axial direction of flow. The flow S is guided by the guide struts 4 through the flow channel 20 along the shell 6 of the engine mount 5 and the exhaust shell 3 .
- a plurality of receiving grooves 9 are formed in the blow-out section 53 for receiving the guide struts 4 in a fixed manner.
- the guide struts 4 are inserted into the receiving grooves 9 for mounting the motor mount 5 in the exhaust shell 3 and thus fix the motor mount 5 in the exhaust shell 3.
- a solution is also included, although not shown, in which the motor mount 5 is independent of the guide struts 4 Be arranged or formed fastening webs, which fix the engine mount 5 in the receiving grooves 9 of the exhaust shell 3.
- the intake shell 2 and the exhaust shell 3 are placed one on top of the other and fixed to one another by clamps 51 .
- the motor mount 5 is positioned with a part of the guide struts 4 between the housing parts of the intake shell 2 and the exhaust shell 3, and is also fixed by fastening them and fixed in position. In particular, it is ensured that the guide struts 4 are fully inserted into the receiving grooves 9 when the brackets 51 are fixed.
- a wall portion of the shell 6 of the motor mount 5 has a plurality of through holes 8 forming a perforation.
- the size of the through holes 8 decreases as seen in the flow direction.
- noise-damping insulating material (not shown) is introduced in order to minimize the noise generated by the flow along the shell 6.
- the perforation through the through holes 8 increases the effect of the soundproofing insulating material.
- radial Aufwei lines 7 are formed on the Ausblasscha le 3 in the areas between the guide struts 4, which have a difference in the circumferential direction and in the axial direction. have running, which corresponds to that of the guide struts 4.
- Noise-damping insulating material (at reference number 77, but not shown) is also introduced into the flared portions 7, preferably injection-moulded on. A reduction in noise is thus also achieved at the exhaust tray 3 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020119881.7A DE102020119881A1 (de) | 2020-07-28 | 2020-07-28 | Rohrventilator ausgeführt als Radialventilator |
| PCT/EP2021/065771 WO2022022880A1 (de) | 2020-07-28 | 2021-06-11 | Rohrventilator ausgeführt als radialventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4153863A1 true EP4153863A1 (de) | 2023-03-29 |
Family
ID=76532187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21733754.2A Pending EP4153863A1 (de) | 2020-07-28 | 2021-06-11 | Rohrventilator ausgeführt als radialventilator |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230287900A1 (de) |
| EP (1) | EP4153863A1 (de) |
| CN (1) | CN116157602B (de) |
| DE (1) | DE102020119881A1 (de) |
| WO (1) | WO2022022880A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2636397A (en) * | 2023-12-12 | 2025-06-18 | Dyson Technology Ltd | A compressor assembly |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1085565A (en) * | 1963-06-27 | 1967-10-04 | Colchester Woods | Mixed flow fans |
| DK118475B (da) * | 1965-08-02 | 1970-08-24 | Nordisk Ventilator | Radialventilator med axial udstrømning. |
| EP0264486B1 (de) * | 1986-10-24 | 1991-08-14 | Wolter GmbH Maschinen- und Apparatebau KG | Ventilator, insbesondere Rohrventilator |
| DE10313991A1 (de) * | 2003-03-27 | 2004-10-07 | Behr Gmbh & Co. Kg | Rohrlüfter |
| ES2356873B1 (es) * | 2009-07-29 | 2012-03-15 | Soler & Palau Research S.L. | Ventilador helicocentr�?fugo insonorizado. |
| CN202001340U (zh) * | 2011-03-23 | 2011-10-05 | 浙江志江风机有限公司 | 一种离心式屋顶风机 |
| GB201417921D0 (en) | 2014-10-10 | 2014-11-26 | Gilbert Gilkes & Gordon Ltd | Axial Flow pumps |
| CN105982413B (zh) * | 2015-02-13 | 2020-08-18 | 德昌电机(深圳)有限公司 | 降噪扩散器及降噪电吹风机 |
| JP2016194275A (ja) | 2015-04-01 | 2016-11-17 | パナソニックIpマネジメント株式会社 | 送風装置 |
| JP2016223432A (ja) * | 2015-05-29 | 2016-12-28 | 日本電産株式会社 | インペラ、送風装置、および掃除機 |
| EP3376044A4 (de) | 2015-11-09 | 2019-08-07 | Nidec Corporation | Gebläsevorrichtung und reiniger |
| US10465704B2 (en) | 2015-11-25 | 2019-11-05 | Twin City Companies, Ltd. | Media concentration device and method |
| CN106224293B (zh) * | 2016-09-30 | 2019-08-27 | 广东美的环境电器制造有限公司 | 扩压器、动力系统及无叶风扇 |
| CN206487647U (zh) * | 2017-01-19 | 2017-09-12 | 东莞市铨达环保通风设备有限公司 | 一种低噪音节能混流风机 |
| CN207349148U (zh) * | 2017-11-03 | 2018-05-11 | 大同市赛诚机车设备有限责任公司 | 一种机车用筒型离心式通风机 |
| CN108386371B (zh) * | 2018-05-11 | 2023-07-18 | 浙江爱尔菲集成家居有限公司 | 一种带螺旋风道的多功能厨房吹风扇 |
| CN210949279U (zh) * | 2019-07-16 | 2020-07-07 | 武汉东方顺通风设备有限公司 | 一种开启式轴流风机 |
| CN210769417U (zh) * | 2019-09-17 | 2020-06-16 | 佛山市南海九洲普惠风机有限公司 | 一种斜流风机 |
| KR20210071373A (ko) * | 2019-12-06 | 2021-06-16 | 엘지전자 주식회사 | 가습청정장치 |
-
2020
- 2020-07-28 DE DE102020119881.7A patent/DE102020119881A1/de active Pending
-
2021
- 2021-06-11 CN CN202180060228.8A patent/CN116157602B/zh active Active
- 2021-06-11 EP EP21733754.2A patent/EP4153863A1/de active Pending
- 2021-06-11 WO PCT/EP2021/065771 patent/WO2022022880A1/de not_active Ceased
- 2021-06-11 US US18/018,157 patent/US20230287900A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CN116157602B (zh) | 2025-11-04 |
| WO2022022880A1 (de) | 2022-02-03 |
| US20230287900A1 (en) | 2023-09-14 |
| DE102020119881A1 (de) | 2022-02-03 |
| CN116157602A (zh) | 2023-05-23 |
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