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WO2016036119A1 - Soufflante centrifuge - Google Patents

Soufflante centrifuge Download PDF

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Publication number
WO2016036119A1
WO2016036119A1 PCT/KR2015/009211 KR2015009211W WO2016036119A1 WO 2016036119 A1 WO2016036119 A1 WO 2016036119A1 KR 2015009211 W KR2015009211 W KR 2015009211W WO 2016036119 A1 WO2016036119 A1 WO 2016036119A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
centrifugal blower
scroll casing
centrifugal
expansion pipe
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.)
Ceased
Application number
PCT/KR2015/009211
Other languages
English (en)
Korean (ko)
Inventor
김성진
심상구
박명진
김봉석
박찬정
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coway Co Ltd
Original Assignee
Coway Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020150122827A external-priority patent/KR102412277B1/ko
Application filed by Coway Co Ltd filed Critical Coway Co Ltd
Priority to CN201580047125.2A priority Critical patent/CN107002708B/zh
Priority to AU2015312616A priority patent/AU2015312616B2/en
Priority to US15/508,203 priority patent/US10598190B2/en
Publication of WO2016036119A1 publication Critical patent/WO2016036119A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • F04D29/44—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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the present invention relates to a centrifugal blower, and more particularly, to a centrifugal blower with improved unbalance and noise in the discharged air.
  • a blower is used for an air cleaner, a fan, etc. industrially, it is used for an air conditioning system, various intake and exhaust systems, and the like.
  • the blowers may be classified into axial blowers, centrifugal blowers, and mixed flow blowers according to the characteristics of the flow through the impeller.
  • centrifugal blowers are applied to ordinary household air purifiers in which air flow is generated such that the suction flow is in the direction of the rotational axis or the discharge flow is in the direction perpendicular to the rotational axis.
  • such a centrifugal blower includes a centrifugal fan having a plurality of wings arranged in a circumferential direction, and a discharge port configured to surround the centrifugal fan and guide air discharged in the circumferential direction of the centrifugal fan to one side.
  • Scroll casing configured to surround the centrifugal fan and guide air discharged in the circumferential direction of the centrifugal fan to one side.
  • the centrifugal blower according to the related art has a problem in that noise due to air friction is generated due to an imbalance in the discharge flow at the discharge port of the scroll casing and the air volume is reduced.
  • the end of the discharge port of the scroll casing is formed in the form of expansion pipe in which the opening area is increased in order to diffuse air, the imbalance of the discharge flow is greatly generated due to the expansion effect.
  • an object of the present invention is to provide a centrifugal blower with a stable discharge flow.
  • the present invention is a centrifugal fan;
  • a scroll casing configured to surround the centrifugal fan, the air casing having at least one surface, an air discharge port at one side, and guide the air discharged from the centrifugal fan to the air discharge port;
  • An expansion pipe portion provided at the air discharge port and configured to have a cross-sectional area of a flow path extending in an air discharge direction;
  • a partition plate provided at the expansion pipe portion and disposed at an outer side of the air discharge port and disposed to extend in a flow direction of discharge air discharged from the air discharge port.
  • the centrifugal blower is provided.
  • a cutoff part is formed in one side of the air discharge port in the scroll casing, and the partition plate may be provided outside the scroll casing based on the cutoff part.
  • the partition plate may divide the flow path inside the expansion portion into two flow paths.
  • the partition plate may be disposed parallel to both sides of the scroll casing, or may be disposed perpendicular to both sides of the scroll casing.
  • the partition plate may be tapered so that the width becomes narrower toward the inner end disposed on the centrifugal fan side.
  • the centrifugal fan is configured to suck air to both sides
  • the scroll casing may be provided with the air intake on both sides.
  • the discharge grill is mounted to the outlet of the expansion portion may be further included.
  • the partition plate may be coupled to the discharge grill.
  • the partition plate may have a protrusion projecting to the outside of the discharge grill.
  • a diffuser coupled to the outlet of the expansion pipe, and diffuses the air discharged from the expansion pipe may be further included.
  • FIG. 1 is a perspective view of a centrifugal blower according to an embodiment of the present invention.
  • FIG. 2 is a side view of the centrifugal blower shown in FIG. 1.
  • FIG. 2 is a side view of the centrifugal blower shown in FIG. 1.
  • FIG. 3 is a plan view of the centrifugal blower shown in FIG.
  • FIG. 4 is a cross-sectional view taken along line AA ′ of the centrifugal blower shown in FIG. 1.
  • FIG. 5 is a cross-sectional view taken along line B-B 'of the centrifugal blower shown in FIG. 1;
  • Figure 6 is a side cross-sectional view of the discharge grill and diffuser of the centrifugal blower shown in Figure 1 removed.
  • the centrifugal blower 100 includes a scroll casing 110, a centrifugal fan 120 and a partition plate 130, the scroll casing ( The discharge grill 140 provided in the expansion pipe 118 of the 110 and the diffuser 150 provided at the outlet of the expansion pipe 118 may be further included.
  • the scroll casing 110 is configured to surround the circumferential direction of the centrifugal fan 120 to be described later, to guide the air discharged in the circumferential direction of the centrifugal fan 120.
  • the scroll casing 110 may include an air inlet 112 on at least one surface thereof, and an air outlet 114 on one side of the circumferential direction of the centrifugal fan 120.
  • the scroll casing 110 may include an air suction port 112 on both sides corresponding to the centrifugal fan 120 which will be described later is a positive suction type.
  • the air discharged in the circumferential direction of the centrifugal fan 120 may be guided along the inner wall of the scroll casing 110 to be discharged to the outside through the air discharge port 114.
  • the air outlet 114 of the scroll casing 110 may be formed with an expansion portion 118 that gradually increases the cross-sectional area of the flow path in the discharge direction of the air.
  • the expansion pipe 118 may allow the discharged air discharged from the air discharge port 114 to be discharged in a wide range, and the negative pressure generated in the discharged air is reduced even when the discharge flow rate is large through the structure in which the flow path is expanded. have.
  • a cutoff part 119 may be formed at one side of the air discharge port 114.
  • the cutoff portion 119 is a concave portion formed at the joint portion of the scroll casing 110 and the expansion pipe 118.
  • the centrifugal fan 120 is provided inside the scroll casing 110 and may suck air in the rotational axis direction and discharge the air in the circumferential direction.
  • the centrifugal fan 120 is not particularly limited and may be configured as a conventional centrifugal blowing fan of various forms.
  • the centrifugal fan 120 may be of a double suction type that can suck air to both sides.
  • the double suction type centrifugal fan 120 has a larger amount of air suction than the single suction type, thereby increasing the air volume of the blower.
  • the dividing plate 130 is provided in the expansion pipe 118 and extends along the flow direction of the discharge air discharged from the air discharge port 114 to guide the discharge air.
  • the partition plate 130 may be provided at the expansion pipe 118, and may be disposed outside the air discharge port 114. In other words, the divider 130 may be provided outside the scroll casing 110 based on the cutoff part 119.
  • the divider 130 is disposed outside the scroll casing 110 and thus does not affect the volume inside the scroll casing 110.
  • the structure in which the partition plate 130 is provided inside the scroll casing 110 reduces the volume of the inside of the scroll casing 110 due to the space occupied by the partition plate 130, thereby reducing the air volume of the blower. Done.
  • the dividing plate 130 extends from one inner wall of the expansion pipe 118 to the other inner wall, thereby dividing the flow path inside the expansion pipe 118 into two flow paths.
  • the partition plate 130 may be disposed in the center of the width direction of the centrifugal fan 120, as shown in Figure 4, but is not limited to this, the width direction of the centrifugal fan 120 It can be arranged in various positions.
  • the divider 130 may be disposed parallel to both sides of the scroll casing 110 as shown in FIGS. 1 to 6.
  • the present invention is not limited thereto, and in another exemplary embodiment, the divider 130 may be disposed perpendicular to both sides of the scroll casing 110.
  • the plurality of divider 130 may be arranged in parallel with a plurality of intervals in the expansion unit 118, the partition plate 130 and the scroll casing (parallel to both sides of the scroll casing 110) ( Scroll casing 110 that is perpendicular to both sides of the 110 may be provided in a cross shape together.
  • the partition plate 130 may be configured to be tapered so that the width becomes narrower toward the inner end disposed on the centrifugal fan 120 side, as shown in the partial enlarged view of FIG.
  • the tapered structure of the inner end of the splitter plate 130 minimizes the resistance area for the discharged air, thereby minimizing noise due to friction between the splitter plate 130 and the discharged air, and the discharged air from the splitter plate 130.
  • the discharge grill 140 is configured to be detachable at the outlet of the expansion pipe 118, and is a grid-like structure having a plurality of vent holes, and foreign matters into the scroll casing 110 through the expansion pipe 118. Inflow can be prevented.
  • the divider 130 may be coupled to the discharge grill 140.
  • the divider 130 may be integrally coupled to the discharge grill 140, or may be detachably coupled to the discharge grill 140.
  • the divider 130 does not need a separate support structure for the expansion pipe 118, it is supported by the discharge grill 140 and can be disposed in the expansion pipe 118.
  • the divider 130 may include a protrusion 132 protruding outward of the discharge grill 140 as shown in FIGS. 1, 4, and 5.
  • the protrusion 132 may be formed in a shape in which the body of the divider 130 extends to the outside of the discharge grill 140.
  • the protrusion 132 may minimize the formation of vortices on the outside of the discharge grill 140 after the air flowing on the surface of the partition plate 130 passes through the discharge grill 140. Through this, the flow of the discharged air can be further stabilized.
  • the diffuser 150 may be provided at the outlet of the expansion unit 118 as necessary.
  • the diffuser 150 may diffuse the air discharged from the expansion unit 118 to a large area of the room.
  • the centrifugal blower 100 stabilizes the flow of the discharged air through the partition plate 130 provided on the outside of the air discharge port 114, thereby eliminating the imbalance of the discharge flow and thereby The noise is reduced and the discharge air volume is improved.

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

Abstract

L'invention concerne une soufflante centrifuge comprenant : un ventilateur centrifuge ; un carter à volute qui est configuré de manière à entourer le ventilateur centrifuge, comporte une entrée d'air sur au moins une surface de celui-ci, comporte une sortie d'air sur un côté de celui-ci, et guide, vers la sortie d'air, l'air rejeté du ventilateur centrifuge ; une partie d'expansion qui est disposée au niveau de la sortie d'air et est configurée de telle sorte que la superficie en coupe transversale de la voie d'écoulement est étendue dans la direction de rejet d'air ; et une plaque de division qui est disposée dans la partie d'expansion, est agencée à l'extérieur de la sortie d'air et est agencée dans le sens de la longueur le long de la direction d'écoulement de l'air rejeté de la sortie d'air.
PCT/KR2015/009211 2014-09-03 2015-09-02 Soufflante centrifuge Ceased WO2016036119A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201580047125.2A CN107002708B (zh) 2014-09-03 2015-09-02 离心式鼓风机
AU2015312616A AU2015312616B2 (en) 2014-09-03 2015-09-02 Centrifugal blower
US15/508,203 US10598190B2 (en) 2014-09-03 2015-09-02 Centrifugal blower

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20140117064 2014-09-03
KR10-2014-0117064 2014-09-03
KR1020150122827A KR102412277B1 (ko) 2014-09-03 2015-08-31 원심 송풍기
KR10-2015-0122827 2015-08-31

Publications (1)

Publication Number Publication Date
WO2016036119A1 true WO2016036119A1 (fr) 2016-03-10

Family

ID=55440094

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2015/009211 Ceased WO2016036119A1 (fr) 2014-09-03 2015-09-02 Soufflante centrifuge

Country Status (1)

Country Link
WO (1) WO2016036119A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106351857A (zh) * 2016-10-17 2017-01-25 西安科技大学 一种新型排尘离心风机
CN107503958A (zh) * 2017-09-22 2017-12-22 杭州德意电器股份有限公司 一种用于吸油烟机的离心风机系统
CN110017302A (zh) * 2018-01-10 2019-07-16 青岛海尔智慧厨房电器有限公司 风机及油烟机
CN111197597A (zh) * 2018-11-20 2020-05-26 珠海格力电器股份有限公司 离心风机、离心风机组件及具有其的空调器
WO2024192909A1 (fr) * 2023-03-23 2024-09-26 广东美的环境电器制造有限公司 Mécanisme de tête de machine et dispositif de ventilateur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06173899A (ja) * 1992-12-04 1994-06-21 Toshiba Ave Corp 空気調和機
KR100657528B1 (ko) * 2005-02-03 2006-12-14 엘지전자 주식회사 환기장치용 원심팬
KR20090059234A (ko) * 2007-12-06 2009-06-11 삼성전자주식회사 송풍기 및 이를 구비하는 공기조화기
KR20120054917A (ko) * 2010-11-22 2012-05-31 덕산공조기계주식회사 확산형 디퓨저를 이용한 축류 송풍기
KR101140708B1 (ko) * 2004-12-31 2012-07-02 삼성전자주식회사 공기조화기용 송풍장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06173899A (ja) * 1992-12-04 1994-06-21 Toshiba Ave Corp 空気調和機
KR101140708B1 (ko) * 2004-12-31 2012-07-02 삼성전자주식회사 공기조화기용 송풍장치
KR100657528B1 (ko) * 2005-02-03 2006-12-14 엘지전자 주식회사 환기장치용 원심팬
KR20090059234A (ko) * 2007-12-06 2009-06-11 삼성전자주식회사 송풍기 및 이를 구비하는 공기조화기
KR20120054917A (ko) * 2010-11-22 2012-05-31 덕산공조기계주식회사 확산형 디퓨저를 이용한 축류 송풍기

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106351857A (zh) * 2016-10-17 2017-01-25 西安科技大学 一种新型排尘离心风机
CN107503958A (zh) * 2017-09-22 2017-12-22 杭州德意电器股份有限公司 一种用于吸油烟机的离心风机系统
CN110017302A (zh) * 2018-01-10 2019-07-16 青岛海尔智慧厨房电器有限公司 风机及油烟机
CN111197597A (zh) * 2018-11-20 2020-05-26 珠海格力电器股份有限公司 离心风机、离心风机组件及具有其的空调器
WO2024192909A1 (fr) * 2023-03-23 2024-09-26 广东美的环境电器制造有限公司 Mécanisme de tête de machine et dispositif de ventilateur

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