KR960023835A - Axial flow blower with introduction flow path - Google Patents

Axial flow blower with introduction flow path Download PDF

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Publication number
KR960023835A
KR960023835A KR1019950049110A KR19950049110A KR960023835A KR 960023835 A KR960023835 A KR 960023835A KR 1019950049110 A KR1019950049110 A KR 1019950049110A KR 19950049110 A KR19950049110 A KR 19950049110A KR 960023835 A KR960023835 A KR 960023835A
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South Korea
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blade
stop
rotary blade
rotation
rotary
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KR1019950049110A
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Korean (ko)
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KR0161107B1 (en
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고지 나까가와
야스히로 가또
다다시 고즈
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가나이 쯔도무
가부시키가이샤 히다치 세사쿠쇼
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/324Blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38Blades
    • F04D29/384Blades characterised by form
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/52Casings; Connections of working fluid for axial pumps
    • F04D29/522Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00Geometry
    • F05D2250/70Shape

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

Abstract

회전축선의 주위에서 회전하면서 회전축선을 포함하는 가상평면에 대하여 경사져서 기체를 회전축선방향 및 원주방향에 있어서 가세하는 복수의 회전날개에 의하여 구성되는 회전날개열과, 회전날개열에 기체를 안내도입하는 기체도입유로와, 상기 기체도입유로의 회전날개열에 면하는 환상의 횡단면형상의 내주직경 및 외주직경은 회전날개열의 내주직경 및 외주직경과 실질적으로 거의 동일한 기체도입유로를 가지는 축류송풍기에 있어서, 회전날개의 회전날개상에 있어서의 원주방향의 기체흐름을 축선방향을 향하여 편향시키는 것을 촉진하기 위한 회전축선을 중심으로 하는 가상원통면을 따른 단면형상에 있어서의 캠버각은 회전날개의 내주로부터 회전날개의 내주와 외주간의 중간부를 향하여 증가한다.Rotating blade row composed of a plurality of rotary blades which rotate about the axis of rotation and incline with respect to an imaginary plane including the axis of rotation to add the gas in the direction of the axis of rotation and the circumferential direction, and a gas for guiding the gas into the axis of rotation of the blades. In an axial flow blower having an introduction flow path and an inner circumferential diameter and an outer circumferential diameter of an annular cross section facing the rotary blade row of the gas introduction channel having substantially the same gas introduction channel as the inner circumferential diameter and the outer circumferential diameter of the rotary wing row. The camber angle in the cross-sectional shape along the imaginary cylindrical surface centered on the axis of rotation for facilitating the deflection of the circumferential gas flow on the rotor blades of the rotor blades from the inner circumference of the rotor blades. Increase toward the middle between the inner and outer circumferences.

Description

도입유로부착 축류송풍기Axial flow blower with introduction flow path

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 축류송풍기에 관한 실시예의 종단면도, 제2도는 제1도에 나타낸 축류송풍기에 있어서의 회전날개의 제1실시예의 외관형상도.1 is a longitudinal sectional view of an embodiment of an axial blower of the present invention, and FIG. 2 is an external appearance of a first embodiment of a rotary blade in the axial blower shown in FIG.

Claims (20)

회전축선의 주위에서 회전하면서 회전축선을 포함하는 가상평면에 대하여 경사져서 기체를 회전축선방향 및 원주방향에 있어서 가세하는, 복수의 회전날개에 의하여 구성되는 회전날개열과, 회전날개열에 기체를 안내도입하는 기체도입유로로서, 상기 기체도입유로의 회전날개열에 면한 환상의 횡단면형상의 내주직경 및 외주직경이 회전날개열의 내주직경 및 외주직경과 실질적으로 거의 동일하게 되어 있는 기체도입유로를 가지고 있으며; 회전날개의 회전날개상에 있어서의 원주방향의 기체흐름을 축선방향을 향하여 편향시키는 것을 촉진하기 위한, 회전축선을 중심으로 하는 가상원통면을 따른 단면형상에 있어서의 캠버각은, 회전날개의 내주로부터 회전날개의 내주와 외주간의 중간부를 향하여 증가하는 것을 특징으로 하는 축류송풍기.Rotor blade row formed by a plurality of rotary blades, which are inclined with respect to the imaginary plane including the rotation axis while rotating around the axis of rotation, to guide the gas into the rotary blade row. A gas introduction passage having a gas introduction passage in which the inner circumferential diameter and the outer circumferential diameter of the annular cross section facing the rotary blade row of the gas introduction channel are substantially the same as the inner and outer diameter of the rotary wing row; The camber angle in the cross-sectional shape along the imaginary cylindrical surface centered on the rotation axis to promote the deflection of the circumferential gas flow on the rotation blade of the rotary blade toward the axial direction is the inner circumference of the rotary blade. An axial flow blower characterized in that it increases from the inner peripheral portion of the rotary blade toward the intermediate portion. 제1항에 있어서, 캠버각은 상기 회전날개의 외주로부터 중간부를 향하여 증가하는 것을 특징으로 하는 축류송풍기.The axial flow blower according to claim 1, wherein the camber angle increases from the outer circumference of the rotary blade toward the middle portion. 제2항에 있어서, 상기 중간부는 상기 회전날개의 내주와 외주간의 반경방향 중앙지점과, 상기 회전날개의 내주 사이에 배치되는 것을 특징으로 하는 축류송풍기.The axial blower according to claim 2, wherein the intermediate portion is disposed between a radial center point between the inner circumference and the outer circumference of the rotary blade and the inner circumference of the rotary blade. 제1항에 있어서, 상기 회전날개의 내주에 있어서의 캠버각은 상기 회전날개의 외주에 있어서의 캠버각보다 큰 것을 특징으로 하는 축류송풍기.The axial blower according to claim 1, wherein the camber angle at the inner circumference of the rotary blade is larger than the camber angle at the outer circumference of the rotary blade. 제2항에 있어서, 상기 회전날개의 내주에 있어서의 회전날개의 내주로부터 외주를 향하여 단위길이 당캠버각 증가비율의 절대치는 회전날개의 외주에 있어서의 회전날개의 외주로부터 내주를 향하여 단위길이 당캠버각 증가비율의 절대치보다 큰 것을 특징으로 하는 축류송풍기.3. The absolute value of the camber angle increase rate per unit length from the inner circumference of the rotary blade in the inner circumference of the rotary blade to the outer circumference is determined per unit length from the outer circumference of the rotary blade in the outer circumference of the rotary blade. An axial blower, characterized in that it is larger than the absolute value of the increase rate of the camber angle. 제1항에 있어서, 상기 회전날개의 내주로부로 상기 회전날개의 중간부까지 캠버각은 증가를 계속하는 것을 특징으로 하는 축류송풍기.The axial flow blower according to claim 1, wherein the camber angle continues to increase from the inner circumferential portion of the rotary blade to the middle portion of the rotary blade. 제2항에 있어서, 상기 회전날개의 외주로부터 상기 회전날개의 중간부까지 캠버각은 증가를 계속하는 것을 특징으로 하는 축류송풍기.The axial blower according to claim 2, wherein the camber angle continues to increase from the outer circumference of the rotary blade to the middle of the rotary blade. 제1항에 있어서, 상기 회전날개의 내주로부터 외주를 향하여 회전날개의 스태거각은 증가하는 것을 특징으로 하는 축류송풍기.The axial blower according to claim 1, wherein the stagger angle of the rotary blade increases from the inner circumference of the rotary blade to the outer circumference. 제8항에 있어서, 상기 회전날개의 내주에 있어서의 회전날개의 내주로부터 외주를 향하여 단위길이 당스태거각 증가비율의 절대치는 회전날개의 외주에 있어서의 회전날개의 외주로부터 내주를 향하여 단위길이 당 스태거각 감소비율의 절대치보다 작은 것을 특징으로 하는 축류송풍기.The absolute value of the stagger angle increase rate per unit length from the inner circumference of the rotary blade in the inner circumference of the rotary blade to the outer circumference according to claim 8 An axial blower, characterized in that it is smaller than the absolute value of the stagger angle reduction ratio. 제1항에 있어서, 회전축선을 포함하는 가상평면에 대하여 경사지고, 회전날개열에 의하여 가세된 기체의 원주방향흐름을 축선방향을 향하여 편향시키는 복수의 정지날개에 의하여 구성되는 정지날개열과, 상기 정지 날개열에 회전날개열에 의하여 가세된 기체를 안내도입하는 또 하나의 기체도입유로서, 상기 또 하나의 기체도입유로의 정지날개열에 면하는 환상의 횡단면형상의 내주직경 및 외주직경이 정지날개열의 내주직경 및 외주직경과 실직적으로 거의 동일하게 되어 있는 또 하나의 기체도입유로를 가지고 있으며, 상기 정지날개의 정지날개상에 있어서의 원주방향의 기체흐름을 축선방향으로 향하여 편향시키는 것을 촉진하기 위한, 회전축선을 중심으로 하는 가상원통면을 따른 단면형상에 있어서의 캠버각은, 정지날개의 외주로부터 정지날개의 내주와 외주간의 중간부를 향하여 증가하는 것을 특징으로 하는 축류송풍기.The stationary blade row according to claim 1, comprising a plurality of stop blades inclined with respect to an imaginary plane including a rotation axis and configured to deflect the circumferential flow of the gas added by the rotary blade row toward the axial direction, and the stops. Another gas introduction oil for guiding the gas added by the blade row to the blade row, wherein the inner and outer diameters of the annular cross-sectional shape facing the stationary wing row of the another gas introduction channel have an inner circumference diameter of the stationary wing row. And another gas introduction passage that is substantially the same as the outer circumferential diameter, and has a rotational shaft for promoting deflecting the circumferential gas flow in the axial direction on the stop blade of the stop blade. The camber angle in the cross-sectional shape along the virtual cylindrical surface centered on the line is defined from the outer periphery of the stationary blade. Axial flow blower, characterized in that to increase toward the middle between the inner and outer wings. 제9항에 있어서, 캠버각은 상기 정지날개의 내주로부터 중간부를 향하여 증가하는 것을 특징으로 하는 축류송풍기.10. The axial blower according to claim 9, wherein the camber angle increases from the inner circumference of the stop blade toward the middle portion. 제10항에 있어서, 상기 중간부는 상기 정지날개의 내주와 외주간의 반경방향중앙지점과, 상기 정지날개의 외주 사이에 배치되는 것을 특징으로 하는 축류송풍기.11. The axial blower according to claim 10, wherein the intermediate portion is disposed between a radial center point between the inner circumference and the outer circumference of the stop blade and the outer circumference of the stop blade. 제9항에 있어서, 상기 정지날개의 내주에 있어서의 캠버각은 상기 정지날개의 외주에 있어서의 캠버각보다 작은 것을 특징으로 하는 축류송풍기.The axial blower according to claim 9, wherein the camber angle at the inner circumference of the stop blade is smaller than the camber angle at the outer circumference of the stop blade. 제10항에 있어서, 상기 정지날개의 내주에 있어서의 정지날개의 내주로부터 외주를 향하여 단위길이 당 캠버각 증가비율의 절대치는 상기 정지날개의 외주에 있어서의 정지날개의 외주로부터 내주를 향하여 단위길이 당 캠버각 증가비율의 절대치보다 작은 것을 특징으로 하는 축류송풍기.The absolute value of the increase rate of the camber angle per unit length from the inner circumference of the stop blade in the inner circumference of the stop blade toward the outer circumference, wherein the unit length from the outer circumference of the stop blade in the outer circumference of the stop blade toward the inner circumference. An axial blower, characterized in that less than the absolute value of the increase rate per camber angle. 제9항에 있어서, 상기 정지날개의 내주에서부터 상기 정지날개의 중간부까지 캠버각은 증가를 계속하는 것을 특징으로 하는 축류송풍기.10. The axial blower according to claim 9, wherein the camber angle continues to increase from the inner circumference of the stop blade to the middle of the stop blade. 제10항에 있어서, 상기 정지날개의 외주로부터 정지날개의 중간부까지 캠버각은 증가를 계속하는 것을 특징으로 하는 축류송풍기.11. The axial blower according to claim 10, wherein the camber angle continues to increase from the outer circumference of the stop blade to the middle of the stop blade. 제1항에 있어서, 반경방향외측벽면과, 반경방향내측벽면과, 그들 사이에서 회전축선을 포함하는 가상평면에 대하여 경사지고, 회전날개열에 의하여 가세된 기체의 원주방향 흐름을 축선방향을 향하여 편향시키는복수의 정지날개에 의하여 구성되는 정지날개열을 가지고, 상기 회전날개의 진행방향을 마주보는 상기 정지날개 표면의 이면은 반경방향 외측벽면과 반경방향 내측벽면의 적어도 한 쪽과의 사이에 둔각을 형성하는 것을 특징으로 하는 축류송풍기.The circumferential flow of the gas inclined relative to the radially outer wall surface, the radially inner wall surface, and the imaginary plane including the axis of rotation therebetween and biased by the rotation of the blades in the axial direction. A stop blade row constituted by a plurality of stop blades, the back surface of the stop blade surface facing the direction of travel of the rotary blade having an obtuse angle between at least one of the radially outer wall surface and the radially inner wall surface. Axial flow blower, characterized in that forming. 제16항에 있어서, 상기 회전날개는 반경방향 외측벽면과 반경방향 내측벽면의 또 한쪽 사이에 실질적으로 거의 직각을 형성하는 것을 특징으로 하는 축류송풍기.17. The axial blower of claim 16, wherein the rotary vane forms substantially a right angle between the radially outer wall surface and another side of the radially inner wall surface. 회전축선의 주위에서 회전하면서 회전축선을 포함하는 가상평면에 대하여 경사져서 기체를 회전축선방향 및 원주방향에 있어서 가세하는 복수의 회전날개에 의하여 구성되는 회전날개열과, 회전축선을 포함하는 가상평면에 대하여 경사지고, 상기 회전날개열에 의하여 가세된 기체의 원주방향흐름을 축선방향을 향하여 편향시키는 복수의 정지날개에 의하여 구성되는 정지날개열과, 상기 정지날개열에 상기 회전날개열에 의하여 가세된 기체를 안내도입하는 기체도입유로로서, 상기 기체도입유로의 정지날개열에 면한 환상의 횡단면형상의 내주직경 및 외주직경은 정지날개열의 내주의 직경 및 외주의 직경과, 실질적으로 거의 동일하게 되어 있는 기체도입유로를 가지고 있으며, 상기 정지날개의 정지날개상에 있어서의 원주방향의 기체흐름을 축선방향을 향하여 편향시키는 것을 촉진하기 위한, 회전축선을 중심선으로 하는 가상원통면을 따른 단면형상에 있어서의 캠버각은, 정지날개의 외주로부터 정지날개의 내주와 외주간의 중간부를 향하여 증가하는 것을 특징으로 하는 축류송풍기.With respect to the imaginary plane comprising a plurality of rotary blades which are rotated around the axis of rotation and inclined with respect to the imaginary plane including the axis of rotation to add the gas in the direction of the axis of rotation and the circumferential direction, and to the imaginary plane including the axis of rotation. A stop blade row composed of a plurality of stop blades which are inclined and deflect the circumferential flow of the gas added by the rotary blade row in the axial direction, and guides the gas added by the rotary blade row to the stop blade row; As the gas introduction channel, the inner circumferential diameter and the outer circumferential diameter of the annular cross section facing the stationary blade row of the gas introduction channel have a gas introduction channel substantially equal to the diameter of the inner circumference and the outer circumference of the stationary wing row. The gas flow in the circumferential direction on the stop blade of the stop blade The camber angle in the cross-sectional shape along the imaginary cylindrical surface centered on the axis of rotation for facilitating the deflection toward the linear direction increases from the outer circumference of the stop blade toward the middle portion between the inner circumference and the outer circumference of the stop blade. Axial blower. 회전축선의 주위에서 회전하면서 회전축선을 포함하는 가상평면에 대하여 경사져서 기체를 회전축선방향 및 원주방향에 있어서 가세하는 복수의 회전날개에 의하여 구성되는 회전날개열과, 반경방향 외측벽면과, 반경방향 내측벽면과, 그들 사이에서 회전축선을 포함하는 가상평면에 대하여 경사지고, 상기 회전날개열에 의하여 가세된 기체의 원주방향 흐름을 축선방향을 향하여 편향시키는 복수의 정지날개에 의하여 구성되는 정지날개열을 가지고 있으며, 상기 회전날개의 진행방향을 마주보는 정지날개표면의 이면은 반경방향 외측벽면과 반경방향 내측벽면의 적어도 한 쪽과의 사이에 둔각을 형성하는 것을 특징으로 하는 축류송풍기.Rotating blade row constituted by a plurality of rotary blades which rotate about the axis of rotation and incline with respect to an imaginary plane including the axis of rotation, thereby adding the gas in the direction of rotation axis and in the circumferential direction, the radial outer wall surface, and the radially inner side And a stop blade row constituted by a wall and a plurality of stop blades inclined with respect to an imaginary plane including a rotation axis therebetween and deflecting the circumferential flow of the gas added by the row of the rotor blades in the axial direction. And a rear surface of the stop blade surface facing the direction of travel of the rotary blade forms an obtuse angle between at least one of the radially outer wall surface and the radially inner wall surface. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950049110A 1994-12-14 1995-12-13 Axial blower mounted inducer fluid road KR0161107B1 (en)

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