WO2001098667A1 - Pompe de drainage - Google Patents

Pompe de drainage Download PDF

Info

Publication number
WO2001098667A1
WO2001098667A1 PCT/JP2001/005008 JP0105008W WO0198667A1 WO 2001098667 A1 WO2001098667 A1 WO 2001098667A1 JP 0105008 W JP0105008 W JP 0105008W WO 0198667 A1 WO0198667 A1 WO 0198667A1
Authority
WO
WIPO (PCT)
Prior art keywords
drain
drain water
shaft portion
pump
impeller
Prior art date
Application number
PCT/JP2001/005008
Other languages
English (en)
Japanese (ja)
Inventor
Akira Kasuya
Katsuya Taguchi
Original Assignee
Kabushiki Kaisha Saginomiya Seisakusho
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 Kabushiki Kaisha Saginomiya Seisakusho filed Critical Kabushiki Kaisha Saginomiya Seisakusho
Priority to EP01941029A priority Critical patent/EP1293680A4/fr
Publication of WO2001098667A1 publication Critical patent/WO2001098667A1/fr

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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2238—Special flow patterns
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance
    • 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
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate

Definitions

  • the present invention relates to a drain pump, particularly a drain drain pump suitable for draining drain condensed on a heat exchanger surface or the like of an indoor unit of an air conditioner.
  • a drain pan for collecting drain is installed at the bottom of the air conditioner, a drain pump is installed here, and this drain pump is operated appropriately to drain the drain outside the machine or outside the room. I have to. Various pumps have been used for this purpose.
  • This drain drain pump is composed of a pump main body 100 and an impeller 200 rotatably arranged in a pump chamber 120 of the pump main body 100. It is configured.
  • the pump main body 100 has a cover 101 covering the upper part thereof, and the pump main body 100 has a bomb chamber 120 composed of a cylindrical housing 110, and a central part of the pump chamber 120.
  • a suction pipe 140 whose lower end forms a suction port 150 at the lower part, and a discharge member 160 which horizontally forms an extended discharge port 170 on the upper side surface of the pump chamber 120 are provided.
  • the impeller 200 has a shaft portion 210 formed at the upper end with a fitting hole into which the output shaft of the motor 180 can be fitted, and a plurality of plate-like main wings 220 provided radially from the shaft portion 210. And an auxiliary blade 290 provided below the main wing 220, and a drain water guide connected to the outer periphery of the main wing 220 and the auxiliary blade 290 and provided between the shaft portion 210 and the gap 230.
  • the drain water guide part 250 has an inverted conical surface 240 on the lower surface, and has an upper surface on the main wing 220 adjacent to the vertical surface 260 opposite to the direction of rotation of the impeller 200.
  • a guide surface 280 is formed, which slopes upward continuously to a vertical surface 207 in the rotation direction of the umbrella 200.
  • Reference numeral 290 indicates an auxiliary blade provided below the drain water guide 250.
  • the drain water which is agitated by the rotation of the auxiliary blades 290 and rises along the inner surface of the inverted conical shape of the pump chamber 120 by applying centrifugal force, is guided to the inverted conical surface 240 on the lower surface of the drain water guide 250. Then, the water further rises along the inner surface of the pump chamber 120, and rises between the drain water guide portion 250 and the inner wall of the pump chamber 120. As a result, the drain water is stirred at a high speed by the main wing 220, and a large velocity energy is given to the drain water, and the velocity energy is applied to the inner wall of the pump chamber 120.
  • the water is converted into pressure energy to press, and the drain water is discharged to the outside through a discharge port 170 on the upper side surface of the pump chamber 120.
  • the centrifugal force of the rotating main wing 220 gives velocity energy to the drain water and introduces outside air into the center, so that the drain water is
  • the main wing 220 is agitated in a state of being mixed with air, and bubbles are generated.
  • the free surface in the pump chamber is affected by centrifugal force due to the lower pressure in the pump chamber and the increase in the rotation speed of the main wing 220. It can be spread radially outward. As a result, the free surface is disturbed by the main wing 220 to generate bubbles. This bubble collides with the main wing 220 and the wall of the pump room, etc., causing problems such as increased noise and vibration.
  • the present invention provides a pump body having a suction port formed at a lower end and a discharge port formed at an upper side surface, and is rotatably disposed in the pump body.
  • a plurality of blades disposed so that an end thereof is separated from the shaft portion, and a plurality of blades arranged below the shaft portion;
  • a drain guide surface having a hollow portion between the auxiliary blade and the auxiliary blade is connected to a lower end portion of each of the blades at the same time as a plate-shaped auxiliary blade is attached and attached along the axial direction.
  • a drain water straightening ring is provided upright on the outer periphery of the drain guide surface at a constant radius from the shaft portion on the outer periphery of the blade, and A drain water guide portion is provided inside the water flow regulating ring, and the drain water guide portion provided inside the drain water flow regulating ring and the drain water guide portion provided inside the drain water flow regulating ring cooperate to form a drain water guide. It suppresses the generation of air bubbles and makes it possible to reduce noise and vibration.
  • the drain water rectifying ring having the drain water guide portion formed on the outer periphery of the blade, the free surface expanded radially outward by centrifugal force can be reduced. The agitation is eliminated and the generation of air bubbles is suppressed. Also, the drain water guide makes it possible to drain the drain water smoothly by the blades.
  • FIG. 1 is a side view showing, in partial cross section, the entire drainage pump as a first embodiment of the present invention.
  • Fig. 2 is a top view of the impeller.
  • FIG. 3 is a perspective view of the impeller.
  • Fig. 4 is a front view of the impeller.
  • Fig. 5 is a graph showing the results of a noise comparison test between the same drain pump and a conventional drain pump.
  • (A) is for 50 Hz operation
  • (b) is for 60 Hz operation. Is shown.
  • Figure 6 is a graph showing the results of head balance comparison test results between the same drain pump and the conventional drain pump.
  • (A) is for 50 Hz operation, and (b) is for 60 Hz.
  • z Indicates operation.
  • FIG. 7 (a) is a perspective view of an impeller of a drain drain pump according to a second embodiment of the present invention, (b) is a plan view thereof, and (c) is a side view thereof.
  • FIG. 8 (a) is a perspective view of an impeller of a drain drain pump according to a third embodiment of the present invention, (b) is a plan view thereof, and (c) is a side view thereof.
  • FIG. 9 is a perspective view of an impeller of a drain drain pump according to a fourth embodiment of the present invention, (b) is a plan view thereof, and (c) is a side view thereof.
  • FIG. 10 is a side view showing a partial cross section of the entire drain drain pump according to the fifth embodiment of the present invention, (b) is a plan view of the impeller, and (c) is the same. A perspective view of the impeller, and (d) is a side view of the impeller.
  • FIG. 11 (a) is a side view partially showing the entire drain drain pump of the sixth embodiment of the present invention, (b) is a plan view of the impeller, and (c) is the same. A perspective view of the impeller, and (d) is a side view of the impeller.
  • FIG. 12 is a side view showing the whole of a conventional drain drain pump in partial cross section.
  • FIG. 13 is a perspective view of the same inlet. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a side view showing a partial cross section of the whole
  • FIG. 2 is a top view of the impeller
  • FIG. 3 is a perspective view of the impeller.
  • Figure and Figure 4 are front views of the impeller.
  • the drain drain pump according to the first embodiment also includes a pump body 2 having substantially the same configuration as the conventional drain drain pump. That is, a pump body 2 having a hollow cylindrical pump chamber 1 has a suction port 3 at a lower end, a discharge port 4 on an upper side, and a discharge pipe (Not shown).
  • a lid 8 is fixed to the upper opening of the pump body 2 by a snap fitting (not shown) via a 0-ring 6. I have.
  • a drain portion 9 is formed at the center of the lid 8, and an opening 10 is formed at the upper center of the 'drain' portion 9, and at the lower end of the opening 10, A draining surface portion 11 whose inner surface is bent downward is formed.
  • a support 12 protrudes from the upper surface of the body 8, and a motor 13 is fixed to the support 12.
  • the rotating shaft 14 of the motor 13 projects downward, penetrates through the opening 10 of the lid 8, and is fixed to an impeller 20, which will be described in detail later.
  • the impeller 20 is configured to rotate in the pump chamber 1.
  • a drain plate 15 is attached above the opening 10 of the rotating shaft 14, and the return water in the drain hose when the pump stops is transmitted from above the impeller 20 to the outer periphery of the rotating shaft 14. To prevent drain water from entering the motor.
  • the impeller 20 is provided with a shaft portion 21 connected to the rotating shaft 14 of the motor 13, as shown in FIGS. 2 to 4.
  • Eight blades (main wings) 22 are arranged so as to extend in the axial direction of the portion 21 and to position the inner end portion away from the shaft portion 21.
  • auxiliary blades 29 formed by joining two substantially rectangular plates in a cross shape are attached below the shaft portion 21 along the axial direction, and the lower end of each blade 22 is attached.
  • a denter guide surface 24 having a hollow portion 23 between the auxiliary blade and the auxiliary blade 29 is provided.
  • a hole 21 a into which the lower end of the rotating shaft 14 can be fitted is formed at the top end of the shaft 2.
  • Reference numeral 30 denotes a ring-shaped drain water straightening ring disposed on the outer periphery of the blade member at a constant radius from the rotation axis of the motor, and the drain water straightening ring 30 is provided on the outer periphery of the blade. It is erected on the outer periphery of the dengar guide surface 24 at a constant radius from the shaft portion 21.
  • a drain water guide part 25 is provided inside the drain water straightening ring 30.
  • the drain water rectifying ring 30 is formed of a ring-shaped peripheral wall having the same height as a vertical surface 27 described later.
  • a guide section 25 is provided physically.
  • the drain water guide portion 25 is formed on the inner surface of the ring-shaped drain water straightening ring 30, and the drain water guide portion 25 is formed on the upper surface thereof.
  • a guide surface 28 is provided.
  • the guide surface 28 extends from the vertical surface 26 on the opposite side of the rotation direction of the impeller 20 on the blade 22 to the vertical surface 2 in the rotation direction of the impeller on the adjacent blade 22. It is formed into a shape that continuously tilts up to 7. That is, the drain water guide portion 25 extends from the vertical surfaces 26 and 27 and the vertical surface 26 opposite to the rotation direction of the impeller 20 to the vertical surface 27 of the adjacent blade 22 in the rotation direction of the impeller. And a guide surface (inclined surface) 28 that is continuously inclined upwards up to this point. In this embodiment, eight guide surfaces 28 are provided.
  • each of the blades 22 is disposed such that its inner end is separated from the shaft portion 21. That is, it extends in the axial direction of the shaft portion 21 on one side of the ring-shaped drain water guide portion 25, and the inner end thereof is separated from the shaft portion 21. Eight located vanes 22 are installed.
  • the lower ends of the eight blades 22 are connected to each other by a donut-shaped temporary lid, which is formed in a substantially inverted conical shape as a whole, to form the above-mentioned dengar guide surface 24.
  • a hollow portion 23 is formed between the auxiliary blade 29 and the auxiliary blade 29.
  • the inner end green of the drengaid surface 24 is configured to be supported by the auxiliary blade 29.
  • the bottom surface l a (FIG. 1) of the pump chambers 1 and 2 is also formed in an inverted conical shape that is almost similar to the drengueid surface 24.
  • a ring-shaped drain water guide is provided inside the ring-shaped drain water straightening ring 30.
  • a ring-shaped drain water straightening ring 30 is provided at a constant radius from the shaft part 21, and a ring-shaped drain water guide is provided inside the drain water straightening ring 30.
  • a vertical surface 26 is provided in the drain water guide 25 opposite to the direction of rotation of the impeller 20.
  • a guide surface 28 is provided, which slopes upward continuously to a vertical surface 27 in the direction of impeller tillage of the impeller 22 of the adjacent blade member 22.
  • the guide portion 25, the drain water flow regulating ring 30, the blade 22, the auxiliary blade 29, and the shaft portion 21 are formed by integral molding of a synthetic resin material to form the impeller 20.
  • Drain water that is swirled by the auxiliary blades 29 and rises along the inner surface of the pump chamber 1 is transferred to the drainage surface 24 on the lower surface of the drain water guide portion 25 formed above the auxiliary blades 29. While being guided, the water further rises along the inner surface of the pump chamber 1 and rises between the drain water guide part 25 and the inner wall of the pump chamber 1, but during this stroke, the drain water guide is formed on the outer periphery of the blade 22. Due to the action of the drain water rectification element 30 in which the drain portion 25 is formed, the free surface expanded radially outward due to the centrifugal force does not agitate the outer periphery of the blade, and air bubbles are generated.
  • the drain water guide portion 25 acts to suppress the flow of the drain water by the blades 22 from hitting the drain water straightening ring 30, and thereby to prevent the flow from being disturbed. This is possible.
  • the drain water straightening ring 30 and the drain water guide part 25 provided inside the drain water straightening ring 30 cooperate with each other.
  • the blades 2'2 prevent the flow of drain water from colliding with the drain water flow control ring 30 to form turbulent water, thereby enabling smooth drainage. The effect can be obtained.
  • the drain drain pump of this embodiment was installed in an anechoic box under the conditions of AC200V, 50 / 60Hz, and the microphone was positioned 50cm from the top of the tester to make noise.
  • the measurement was carried out with the head changed.
  • the measurement results are as shown in Figs. 5 (a) and (b).
  • FIGs. 5 (a) shows the case of 50 Hz
  • (b) shows the case of 60 Hz.
  • the line A in each figure shows the noise of the drainage drain pump of this embodiment.
  • the line B indicates the noise of the conventional drain drain pump.
  • Figures 6 (a) and 6 (b) are comparison graphs of head balance (the relationship between head and sound pressure) by the same test, where (a) is at 50 Hz and (b) is At 60 Hz, cotton A in each figure indicates the lift balance of the drain drain pump of this embodiment, and line B indicates the lift balance of the conventional drain drain pump described above. ing. From these experimental results, it is clear that the drain drain pump of the first embodiment has more excellent effects in terms of noise and head balance than the above-mentioned conventional drain drain pump. It can be understood.
  • the impeller 20 is the same as that of the first embodiment in that the impeller 20 has eight blades 22, but the inner end of each blade 22 is The difference is that the structure extends to the shaft part 21.
  • the configurations of the drain guide surface 24, the drain water guide portion 25, the drain water flow straightening ring 30, and the auxiliary blade '29 are the same as those of the first embodiment. The operation and effect are the same as those of the first embodiment.
  • the impeller 20 extends in the axial direction of the shaft portion 21. It has eight blades 22 arranged so that the inner end is located away from the shaft 21, and extends axially below the shaft 21.
  • a cross-shaped auxiliary blade 29 is attached and connected to the lower end of each blade 22, and has a dengar guide surface 24 having a hollow portion 23 between the auxiliary blade 29 and each of the blades 22.
  • a ring-shaped drain water straightening ring 30 is provided on the outer periphery of the shaft at a constant radius from the shaft part 21, and a drain water guide part 25 is provided inside the drain water straightening ring 30.
  • the drain water guide portion 25 is formed on the inner surface of the drain water straightening ring 30.
  • the configuration is different from that of the first embodiment in that the shaft portion 21 is constituted by a plurality of concave grooves 25a along the axial direction.
  • the operation of forming an inclined surface and the like can be omitted. The effect of reducing cost can be obtained.
  • the impeller 20 is disposed so that the impeller 20 extends in the axial direction of the shaft portion 21 and the inner end is located away from the shaft portion 21.
  • a cross-shaped auxiliary blade 29 is attached below the shaft portion 21 along the axial direction, and is connected to the lower end of each blade 22.
  • a ring-shaped drain having a hollow portion 24 having a hollow portion 23 between the auxiliary blade 29 and the auxiliary blade 29 and being disposed at a constant radius from the shaft portion 21 on the outer periphery of each blade 22.
  • a water flow regulating ring 30 is provided and a drain water guide portion 25 is provided inside the drain water flow regulating ring 30.
  • the drain water guide part 25 is provided with a shaft part 21 formed on the inner surface of the drain water straightening ring 30.
  • FIGS.10 (a) to (d) in which the impeller 20 is directed in the axial direction of the shaft portion 21.
  • the impeller 20 has eight blades 22 arranged so that the inner end is located away from the shaft portion, and a plate-like shape is provided along the axial direction below the shaft portion.
  • the auxiliary blade 29 When the auxiliary blade 29 is mounted, the auxiliary blade 29 is connected to the lower end of each blade 22, and a dengue guide surface 24 having a hollow portion 23 is formed between the auxiliary blade 29 and the auxiliary blade 29.
  • a drain water straightening ring 30 is provided upright on the outer peripheral green of the drainage surface 24 at a certain radius from the shaft portion 21, and a drain water guide portion 25 is provided inside the drain water straightening section 30.
  • the drain water guide part 25 is composed of a plurality of inclined surfaces 28 provided at intervals on the inner surface of the drain water straightening ring 30.
  • a single triangular plate whose width decreases as the auxiliary blade 29 moves downwards is different from that of the first embodiment. 29 a.
  • the shape of the suction port 3 of the pump body 2 is formed into an inverted truncated cone shape 3a in conformity with the shape of the auxiliary blade 29a.
  • the auxiliary blade 29a is formed in a triangular shape whose width becomes narrower downward in the plane thereof. The centrifugal force acting on the drain water, which rises along the inner surface of the pump chamber 1 due to the rotation of 29a, gradually increases as the drain water rises, increasing the pump discharge capacity. Is played.
  • the sixth embodiment corresponds to a modification of the first embodiment described above, and out of the eight blades 22 constituting the impeller 20, every other blade has four blades 22a. Although the inner end is extended to the shaft portion 21 and is attached to the shaft portion 21, the configuration is different from that of the first embodiment in configuration. There is no difference in the effects.
  • the gap between the inner wall of the pump body 2 and the impeller 20 is 3 mm or less, preferably 1.5 mm to 2.0 mm.
  • the drain water straightening ring 30 and the drain water guide part 25 provided inside the drain water straightening ring 30 cooperate to suppress the generation of air bubbles in the drain water. .
  • auxiliary blades are formed in a triangular shape whose width becomes narrower downward in the plane, they act on the drain water rising along the inner surface of the pump chamber due to the rotation of the auxiliary blades. The centrifugal force gradually increases as the drain water rises, and it becomes possible to increase the discharge capacity of the pump.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

L'invention concerne une pompe de drainage capable de réduire le bruit de fonctionnement, dans laquelle une bague de redressement de drainage (30) est prévue verticalement sur la périphérie extérieure des palettes (22) d'une pompe à palettes (20) et sur le bord périphérique extérieur des surfaces de guidage à l'écart d'un rayon spécifié à partir d'une partie d'arbre (21), et des parties de guidage de drainage (25) sont prévues à l'intérieur de la bague de redressement de drainage (30). La formation d'éventuelles bulles d'air est supprimée dans l'écoulement en association entre la bague de redressement de drainage (30) et la partie de guidage de drainage (25), de manière à réduire le bruit et les vibrations.
PCT/JP2001/005008 2000-06-21 2001-06-13 Pompe de drainage WO2001098667A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01941029A EP1293680A4 (fr) 2000-06-21 2001-06-13 Pompe de drainage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000-185549 2000-06-21
JP2000185549A JP3511044B2 (ja) 2000-06-21 2000-06-21 ドレン排水ポンプ

Publications (1)

Publication Number Publication Date
WO2001098667A1 true WO2001098667A1 (fr) 2001-12-27

Family

ID=18685858

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/005008 WO2001098667A1 (fr) 2000-06-21 2001-06-13 Pompe de drainage

Country Status (5)

Country Link
EP (1) EP1293680A4 (fr)
JP (1) JP3511044B2 (fr)
KR (1) KR100720377B1 (fr)
CN (1) CN1193172C (fr)
WO (1) WO2001098667A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006029214A (ja) * 2004-07-16 2006-02-02 Fuji Koki Corp 排水ポンプ
JP4680922B2 (ja) * 2004-09-30 2011-05-11 株式会社鷺宮製作所 立軸形遠心ポンプおよびそのロータならびに空気調和装置
BRPI0812243A2 (pt) * 2007-06-01 2014-12-23 Gorman Rupp Co Bomba para deslocamento de fluidos
KR100937927B1 (ko) * 2008-02-01 2010-01-21 경남중천전화(주) 배수펌프용 임펠러
JP2009293852A (ja) * 2008-06-05 2009-12-17 Fuji Electric Retail Systems Co Ltd 蓄氷式飲料冷却装置
JP5227370B2 (ja) * 2010-07-09 2013-07-03 パナソニック株式会社 ドレンポンプ
JP5889051B2 (ja) * 2011-08-30 2016-03-22 株式会社不二工機 排水ポンプ
CN102454628A (zh) * 2011-12-30 2012-05-16 新昌县富士精工科技有限公司 空调排水泵叶轮
CN103899541B (zh) * 2012-12-28 2016-03-02 常州雷利电机科技有限公司 排水泵
CN103470538A (zh) * 2013-09-12 2013-12-25 昆山市巴城镇顺拓工程机械配件厂 一种低噪排水泵
JP6427428B2 (ja) * 2014-09-26 2018-11-21 株式会社不二工機 排水ポンプ
CN105464995B (zh) * 2014-09-26 2019-01-11 株式会社不二工机 排水泵
JP2017106388A (ja) * 2015-12-10 2017-06-15 株式会社鷺宮製作所 ポンプロータ、および、それを備える排水ポンプ
CN113351831B (zh) * 2021-05-06 2022-12-23 江山市通联泵业成套有限公司 一种精度高、一体成型的水泵叶轮
KR20220162988A (ko) 2021-06-02 2022-12-09 주식회사 에스 씨디 드레인 펌프
CN114923218B (zh) * 2022-03-29 2023-08-18 青岛海信日立空调***有限公司 空调器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08189662A (ja) * 1995-01-12 1996-07-23 Fuji Koki Seisakusho:Kk 排水ポンプ
JPH0979171A (ja) * 1995-09-14 1997-03-25 Fuji Koki:Kk 排水ポンプ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3348226B2 (ja) * 1995-11-24 2002-11-20 株式会社鷺宮製作所 ドレン排水ポンプ
JP3910665B2 (ja) 1996-10-11 2007-04-25 株式会社不二工機 排水ポンプ
JP2000046363A (ja) * 1998-05-25 2000-02-18 Saginomiya Seisakusho Inc ドレン排水ポンプ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08189662A (ja) * 1995-01-12 1996-07-23 Fuji Koki Seisakusho:Kk 排水ポンプ
JPH0979171A (ja) * 1995-09-14 1997-03-25 Fuji Koki:Kk 排水ポンプ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1293680A4 *

Also Published As

Publication number Publication date
EP1293680A1 (fr) 2003-03-19
EP1293680A4 (fr) 2005-10-19
JP2002005083A (ja) 2002-01-09
CN1383476A (zh) 2002-12-04
KR20020035121A (ko) 2002-05-09
KR100720377B1 (ko) 2007-05-21
JP3511044B2 (ja) 2004-03-29
CN1193172C (zh) 2005-03-16

Similar Documents

Publication Publication Date Title
WO2001098667A1 (fr) Pompe de drainage
US8240997B2 (en) Centrifugal impeller and centrifugal blower using the centrifugal impeller
JPH0886299A (ja) 遠心式送風機
JP2001123977A (ja) ドレン排水ポンプ
US20210262487A1 (en) Housing for a fan and fan
EP1762729B1 (fr) ensemble ventilateur centrifuge
JP4680922B2 (ja) 立軸形遠心ポンプおよびそのロータならびに空気調和装置
KR100716207B1 (ko) 다익송풍기
KR100724234B1 (ko) 드레인 펌프 및 그것을 구비한 공기 조화 장치
CN109424548B (zh) 排水泵以及空调机
EP0836010B1 (fr) Pompe de drainage
JP3524611B2 (ja) 排水ポンプ
JP2925076B2 (ja) 排水ポンプ
JP2002021778A (ja) ドレン排水ポンプ
JPH08285307A (ja) ドレン水排水ポンプ
JP2000046363A (ja) ドレン排水ポンプ
JP3348226B2 (ja) ドレン排水ポンプ
JP3864271B2 (ja) ドレン排水ポンプ
JP3317808B2 (ja) 排水ポンプ
KR100311998B1 (ko) 공기조화기용크로스플로우팬
KR200332249Y1 (ko) 소음이 줄어드는 고효율 원심송풍기
JP2005315194A (ja) 排水ポンプ
JP2000205188A (ja) 液体排水ポンプ
JP2000080996A (ja) 排水ポンプ
JPH0683992U (ja) 排水ポンプ

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN KR

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

WWE Wipo information: entry into national phase

Ref document number: 2001941029

Country of ref document: EP

Ref document number: 1020027002118

Country of ref document: KR

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 018017541

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 1020027002118

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 2001941029

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 2001941029

Country of ref document: EP