WO2010135988A1 - Bague de siège de turbine hydraulique à écoulement mixte à petite échelle, à faible vitesse et à liaison directe, appliquée à une tour de refroidissement à économie d'énergie hydrodynamique - Google Patents

Bague de siège de turbine hydraulique à écoulement mixte à petite échelle, à faible vitesse et à liaison directe, appliquée à une tour de refroidissement à économie d'énergie hydrodynamique Download PDF

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Publication number
WO2010135988A1
WO2010135988A1 PCT/CN2010/073240 CN2010073240W WO2010135988A1 WO 2010135988 A1 WO2010135988 A1 WO 2010135988A1 CN 2010073240 W CN2010073240 W CN 2010073240W WO 2010135988 A1 WO2010135988 A1 WO 2010135988A1
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WO
WIPO (PCT)
Prior art keywords
diameter
ring plate
vane
water
negative curvature
Prior art date
Application number
PCT/CN2010/073240
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English (en)
Chinese (zh)
Inventor
顾星康
Original Assignee
南京星飞冷却设备有限公司
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
Application filed by 南京星飞冷却设备有限公司 filed Critical 南京星飞冷却设备有限公司
Publication of WO2010135988A1 publication Critical patent/WO2010135988A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/16—Stators
    • F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/70—Shape
    • F05B2250/71—Shape curved
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Definitions

  • the invention relates to a cooling tower, in particular to a water inlet seat ring of a cooling tower driven water turbine, in particular to a waterless turbine output shaft by rationally designing a water inlet seat guide vane and an impeller without a reduction gear box. It is a direct-coupled low-speed small mixed-flow turbine seat ring for the hydro-powered energy-saving cooling tower, which is the rated speed of the fan and thus eliminates the gearbox used in the traditional counter-turbine.
  • the existing air conditioning cooling tower has begun to use a water turbine to drive the cooling fan, which fully utilizes the energy of the cooling tower circulating water flow to convert it into the driving force of the water turbine, and converts the water energy into Rotating machinery can be used to drive cooling fans, eliminating the need for traditional high-power cooling motors, and the energy savings are significant.
  • the current counter-turbine turbines require a speed reducer to reduce the output speed of the turbine to a reasonable speed to drive the blades to rotate, thereby achieving cooling of the circulating water. Since the working condition of the reduction gearbox is poor, it is not only noisy, but also has a short life and is prone to failure. At the same time, since the reduction gearbox is a large reduction gearbox, the manufacturing cost is accordingly increased.
  • the gearbox can be removed by reasonable design, the above problem can be solved well.
  • the applicant has calculated through a large number of calculations that the turbine output speed can be as long as the shape and size of the inlet ring and the impeller of the turbine are properly designed. Control is within the desired range. Therefore, it is imperative to design a seat ring that meets the low speed requirements of the turbine of a hydro-cooling tower. It is the key to achieving gearless transmission of the cooling tower turbine.
  • the object of the present invention is to solve the problems of large noise, easy failure and high manufacturing cost of the output shaft of the existing cooling tower counter-turbine that needs to be driven by the reduction gear box, and is designed to be applied to hydrodynamic cooling.
  • the tower's direct-coupled low-speed small Francis turbine seat ring lays the foundation for the final elimination of the gear reduction transmission mechanism.
  • the technical solution of the present invention is:
  • the utility model relates to a direct-coupled low-speed small mixed flow turbine seat ring applied to a hydrodynamic energy-saving cooling tower, which mainly comprises an upper ring plate 1, a lower ring plate 3 and a guide vane 2 installed between the upper ring plate 1 and the lower ring plate 3
  • the composition is characterized in that the vane 2 is a negative curvature vane, and the height of the negative curvature vane 2 is 0.07 to 0.09 times the diameter D1 of the inlet side, and the length L is 0.16 of the diameter D1 of the inlet side.
  • the diameter of the water outlet side D2 of the negative curvature vane 2 is 0.75 ⁇ 0.95 times of the diameter D1 of the inlet water; the diameter of the outer circle D3 of the upper ring plate 1 and the lower ring plate 3 are both the negative curvature
  • the guide vane 2 has a water inlet diameter D1 of 1.0 to 1.25 times, and the inner ring diameter D4 of the upper ring plate 1 and the lower ring plate 3 is 0.7 to 0.9 times the diameter D1 of the water inlet side of the negative curvature guide vane 2.
  • the number of the vanes 2 is 15-19.
  • the invention lays a foundation for the cooling tower water turbine to finally save the reduction gear box, and the seat ring designed by the invention can fully meet the use requirements, and the test proves that the turbine with the seat ring of the invention has the output speed fully satisfying the use. Required, and the pulsation range of the speed is small.
  • the invention has simple structure and is convenient to install and use.
  • the invention is directed to the characteristics of the cooling tower water turbine, and creatively reduces the unit rotation speed nil from not less than 80 to 28-42 of the actual application of the counter-attack turbine, and at the same time, according to the unit rotation speed, the key components affecting the efficiency of the turbine are determined.
  • the curve equation of the leaf after a lot of calculations and experiments The relationship between the size of the seat ring and the water inlet side dimension Dl is given, and the relationship between the D1 and the cooling fan speed is given, which provides a quick and convenient way for rational design of the seat ring.
  • the size of the seat wheel determined by the water inlet side dimension D1 determined when the unit speed is between 28 and 42 can maintain the overall efficiency of the turbine at about 86%, and the efficiency is greater than 42 or less than 28. It is a straight line in a straight line.
  • FIG. 1 is a schematic perspective view of a seat ring of the present invention.
  • FIG. 2 is a schematic view showing the installation layout of the seat ring guide vanes of the present invention.
  • Figure 3 is a diagram showing the position of a single vane curve equation of the present invention.
  • FIG. 4 is a schematic perspective view of a guide vane of the present invention.
  • Figure 5 is a three-view projection view of the vane of the present invention.
  • the utility model relates to a direct-coupled low-speed small mixed flow turbine seat ring applied to a hydrodynamic energy-saving cooling tower, which mainly comprises an upper ring plate 1, a lower ring plate 3 and a guide vane 2 installed between the upper ring plate 1 and the lower ring plate 3 Composition, the number of vanes can be between 15-19, as shown in Figure 1.
  • the vane 2 is a negative curvature guide vane (Fig. 3), the height of the negative curvature vane 2 is 0.07 ⁇ 0.09 times the diameter D1 of the inlet water, and the length L is 0.16 ⁇ of the diameter D1 of the inlet side. 0.2 times, as shown in FIG.
  • the diameter D2 of the water outlet side of the negative curvature guide vane 2 is 0.75 to 0.95 times of the diameter D1 of the inlet water; the outer diameter D3 of the upper ring plate 1 and the lower ring plate 3 are both
  • the water inlet diameter D1 is 1.0 to 1.25 times
  • the inner ring diameter D4 of the upper ring plate 1 and the lower ring plate 3 is 0.7 to 0.9 times the diameter D1 of the water inlet side of the negative curvature guide vane 2.
  • the efficiency can only meet the requirements when the unit speed is selected between 28 and 42. Otherwise, it is difficult to achieve the expected cooling effect, because the relationship between the cooling fan speed and the turbine efficiency is substantially cubic power. Therefore, when the efficiency is lower than 85%, it will be difficult to obtain the desired rotational speed.
  • the parts not covered by the present invention are the same as the prior art or can be implemented by the prior art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)

Abstract

L'invention porte sur une bague de siège de turbine hydraulique à écoulement mixte, à petite échelle, à faible vitesse et à liaison directe, appliquée à une tour de refroidissement à économie d'énergie hydrodynamique, comprenant principalement une plaque annulaire supérieure (1), une plaque annulaire inférieure (3) et des soupapes de guidage (2) disposées entre la plaque de bague annulaire (1) et la plaque de bague annulaire (3). La bague de siège est caractérisée en ce que les soupapes de guidage (2) sont des soupapes de guidage à courbure négative, la hauteur de la soupape de guidage à courbure négative (2) étant de 0,07 à 0,09 fois le diamètre D1 du côté entrée d'eau associé, la longueur L étant de 0,16 à 0,2 fois le diamètre D1 du côté entrée d'eau associé, le diamètre D2 du côté sortie d'eau de la soupape de guidage à courbure négative (2) étant de 0,75 à 0,95 fois le diamètre D1 du côté entrée d'eau associé, le diamètre D3 des cercles externes de la plaque annulaire supérieure (1) et de la plaque de bague annulaire (3) étant de 1,0 à 1,25 fois le diamètre D1 du côté entrée d'eau de la soupape de guidage à courbure négative (2), et les diamètres D4 des cercles intérieurs de la plaque annulaire supérieure (1) et de la plaque annulaire inférieure (3) étant de 0,7 à 0,9 fois le diamètre D1 du côté entrée d'eau de la soupape de guidage à courbure négative (2). La bague de siège présente une structure simple et une conception appropriée, et est avantageuse pour améliorer le rendement de conversion d'énergie de la turbine hydraulique.
PCT/CN2010/073240 2009-05-27 2010-05-25 Bague de siège de turbine hydraulique à écoulement mixte à petite échelle, à faible vitesse et à liaison directe, appliquée à une tour de refroidissement à économie d'énergie hydrodynamique WO2010135988A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009100273084A CN101560937B (zh) 2009-05-27 2009-05-27 应用于水动节能冷却塔的直联低速小型混流式水轮机座环
CN200910027308.4 2009-05-27

Publications (1)

Publication Number Publication Date
WO2010135988A1 true WO2010135988A1 (fr) 2010-12-02

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PCT/CN2010/073240 WO2010135988A1 (fr) 2009-05-27 2010-05-25 Bague de siège de turbine hydraulique à écoulement mixte à petite échelle, à faible vitesse et à liaison directe, appliquée à une tour de refroidissement à économie d'énergie hydrodynamique

Country Status (2)

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CN (1) CN101560937B (fr)
WO (1) WO2010135988A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101560937B (zh) * 2009-05-27 2010-11-10 南京星飞冷却设备有限公司 应用于水动节能冷却塔的直联低速小型混流式水轮机座环
CN102011672B (zh) * 2010-12-08 2012-07-25 清华大学 一种采用新型导叶和转轮叶片型线的混流式水轮机
CN102817763A (zh) * 2011-06-10 2012-12-12 安徽省科捷再生能源利用有限公司 工业冷却塔用混流式水轮机
CN103953489B (zh) * 2013-08-02 2016-02-24 河海大学 一种用于直驱冷却塔风机的径流式水轮机转轮
CN103612082B (zh) * 2013-11-22 2015-11-18 哈尔滨电机厂有限责任公司 大型水轮机座环加工找正的工艺方法
CN108386304A (zh) * 2018-04-24 2018-08-10 东方电气集团东方电机有限公司 反击式水轮机的座环
CN109014649B (zh) * 2018-08-29 2019-09-10 哈尔滨电机厂有限责任公司 一种进出水边无焊接坡口结构的固定导叶装焊工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937594A (en) * 1973-04-27 1976-02-10 Hitachi, Ltd. Object disposed in a fluid flow and having a selected configuration to minimize generation of karman's vortex street
EP0199073A1 (fr) * 1985-04-19 1986-10-29 Man Gutehoffnungshütte Gmbh Procédé de fabrication d'une aube statorique pour un compresseur ou une turbine et aube selon ledit procédé
JPH10184523A (ja) * 1996-12-24 1998-07-14 Hitachi Ltd 水車のガイドベーン
JPH1172077A (ja) * 1997-06-19 1999-03-16 Fuji Electric Co Ltd シリンダゲート型水車
CN101074677A (zh) * 2007-06-19 2007-11-21 金先培 冷却塔用水动力风机
CN101560937A (zh) * 2009-05-27 2009-10-21 南京星飞冷却设备有限公司 应用于水动节能冷却塔的直联低速小型混流式水轮机座环

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Publication number Priority date Publication date Assignee Title
AT405756B (de) * 1996-05-30 1999-11-25 Efg Turbinen Und Kraftwerksanl Leitschaufel für kaplanturbinen
CN201047332Y (zh) * 2007-06-29 2008-04-16 天津市天发重型水电设备制造有限公司 一种水轮机座环
CN201129263Y (zh) * 2007-09-27 2008-10-08 天津市天发重型水电设备制造有限公司 支撑水轮发电机导水机构中内配水环的通用座环

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937594A (en) * 1973-04-27 1976-02-10 Hitachi, Ltd. Object disposed in a fluid flow and having a selected configuration to minimize generation of karman's vortex street
EP0199073A1 (fr) * 1985-04-19 1986-10-29 Man Gutehoffnungshütte Gmbh Procédé de fabrication d'une aube statorique pour un compresseur ou une turbine et aube selon ledit procédé
JPH10184523A (ja) * 1996-12-24 1998-07-14 Hitachi Ltd 水車のガイドベーン
JPH1172077A (ja) * 1997-06-19 1999-03-16 Fuji Electric Co Ltd シリンダゲート型水車
CN101074677A (zh) * 2007-06-19 2007-11-21 金先培 冷却塔用水动力风机
CN101560937A (zh) * 2009-05-27 2009-10-21 南京星飞冷却设备有限公司 应用于水动节能冷却塔的直联低速小型混流式水轮机座环

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CN101560937A (zh) 2009-10-21
CN101560937B (zh) 2010-11-10

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