JP3100455U - Centrifugal pump - Google Patents

Centrifugal pump Download PDF

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JP3100455U
JP3100455U JP2003271214U JP2003271214U JP3100455U JP 3100455 U JP3100455 U JP 3100455U JP 2003271214 U JP2003271214 U JP 2003271214U JP 2003271214 U JP2003271214 U JP 2003271214U JP 3100455 U JP3100455 U JP 3100455U
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pump
casing
shrouds
impeller
suction pipe
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江明祥
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江明祥
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    • 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
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Abstract

【課題】
小型で揚水特性に優れた渦巻ポンプを提供する。
【解決手段】
吸込管と吐出管を備えたケーシングと、ケーシングの少なくとも一方の側壁を貫通し外部に設けた原動機により駆動され回転する主軸と、主軸に同軸に取付けられた一対のシュラウドに挟まれた複数の渦巻状の羽根から成る回転子と、を具備する渦巻ポンプにおいて、
回転子を、
一対のシュラウドと、それらのシュラウドに挟まれた複数の渦巻状の羽根とから成る羽根車ポンプ部と、
羽根車ポンプ部の吸込管側のシュラウドと同軸に設けられ、ケーシングの吸込管を形成する部分の内壁面との間に微小間隙を介して対向する外壁面を有し、羽根車の低圧部に通じる円筒部と、円筒部の内部に回転時に液体を羽根車ポンプ部の吸込み部に送出し得る軸流ラセン羽根とから成る軸流ポンプ部と、
により構成する。
【選択図】図１
【Task】
To provide a small-sized centrifugal pump with excellent pumping characteristics.
[Solution]
A casing provided with a suction pipe and a discharge pipe, a main shaft which penetrates at least one side wall of the casing and is driven and rotated by a motor provided outside, and a plurality of spirals sandwiched between a pair of shrouds coaxially mounted on the main shaft And a rotor composed of wing-shaped blades,
Rotor,
A pair of shrouds, and an impeller pump section comprising a plurality of spiral blades sandwiched between the shrouds,
An outer wall surface is provided coaxially with the shroud on the suction pipe side of the impeller pump portion, and has an outer wall surface opposed to an inner wall surface of a portion forming a suction pipe of the casing via a minute gap. An axial flow pump portion comprising a cylindrical portion communicating therewith, and an axial flow spiral blade capable of sending liquid to a suction portion of the impeller pump portion during rotation inside the cylindrical portion;
It consists of.
[Selection diagram] Fig. 1

Description

本考案は、渦巻ポンプに関する。 The present invention relates to a centrifugal pump.

吸込管と吐出管を備えたケーシングと、そのケーシングの少なくとも一方の側壁を貫通し外部に設けた原動機により駆動され回転する主軸と、主軸に同軸に取付けられた一対のシュラウドに挟まれた複数の渦巻羽根から成る羽根車又は回転子と、を具備する渦巻ポンプは広く用いられている。 A casing provided with a suction pipe and a discharge pipe, a main shaft that is driven by a motor provided outside through at least one side wall of the casing, and a plurality of shrouds sandwiched between a pair of shrouds coaxially mounted on the main shaft; Spiral pumps having an impeller or a rotor composed of spiral blades are widely used.

水は低きに流れ、人は高所に登ると言うことから、近年、住宅やビル、マンション等の高層化が進展し、そこでは地下に給水施設が設けられるので、供給された水を高所に設けた貯水槽を介して各戸に配分するため揚水ポンプが必要となっており、そのため小型の揚水ポンプの需要は益々増大している。
然し、従来公知の渦巻ポンプは、外径の大きな羽根車を使用する必要があり、ポンプが大型となる上、モーターに掛かる負荷が大きいと言う欠点があった。
特に住宅やマンションなどでは、揚水ポンプの小型化が求められている。 Water flows low and people climb to high places.In recent years, houses, buildings, condominiums, etc. have been increasing in height, and underground water supply facilities have been established. Pumps are needed to distribute water to each house via a water tank provided at the place, and the demand for small-sized pumps is increasing.
However, conventionally known centrifugal pumps require the use of an impeller with a large outer diameter, which has the disadvantage that the pump becomes large and the load on the motor is large.
Particularly in houses and condominiums, there is a demand for a smaller pump.

特開2002−276596号公報JP 2002-276596 A

解決しようとする課題は、小型で揚水特性に優れた渦巻ポンプを提供することである。 The problem to be solved is to provide a small-sized centrifugal pump having excellent pumping characteristics.

渦巻ポンプのサクション側に、渦巻ポンプの羽根車と同軸で駆動される補助の軸流ポンプを設ける。
主体と成る渦巻状の羽根を有する羽根車ポンプ部と附設される軸流ポンプ部のケーシング及び回転翼は、望ましくは一体に形成され、ポンプの主軸に取付けられる。 An auxiliary axial pump driven coaxially with the impeller of the volute pump is provided on the suction side of the volute pump.
The casing and the rotor of the impeller pump section having the spiral blades as the main body and the attached axial flow pump section are desirably integrally formed and attached to the main shaft of the pump.

本考案に係る渦巻ポンプは、主体と成る渦巻ポンプの外に、補助となる軸流ポンプが同軸に設けられるので、渦巻ポンプの羽根車の外径を小さくしても、揚水特性を高いレベルに保持することができ、このためポンプを小型化できるものである。 In the centrifugal pump according to the present invention, an auxiliary axial flow pump is coaxially provided in addition to the main centrifugal pump, so that the pumping characteristic can be increased to a high level even if the outer diameter of the centrifugal pump impeller is reduced. The pump can be held down, so that the pump can be downsized.

以下、図面により本考案の実施例について説明する。　 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図1は、本考案に係る渦巻ポンプの回転子の主軸取付用のボス部を除いた主要部分の構成を示す斜視図、
図2は、図1に示した回転子の主要部分の一部破断斜視図、
図3は、主軸取付用ボス部を含む、本考案に係る渦巻ポンプの回転子の構成を示す斜視図、
図4は、図3に示した回転子の一部破断斜視図、
図5は、上記各図に示された回転子を用いた渦巻ポンプの軸直角断面図、
図6は、図5に示した渦巻ポンプの要部の主軸取付用ボス部を省略した縦断面図、
図7は、図5に示した渦巻ポンプの要部の主軸取付用ボス部を含む縦断面図である。 FIG. 1 is a perspective view showing a configuration of a main part excluding a boss part for attaching a main shaft of a rotor of a centrifugal pump according to the present invention,
FIG. 2 is a partially cutaway perspective view of a main part of the rotor shown in FIG. 1,
FIG. 3 is a perspective view showing a configuration of a rotor of the centrifugal pump according to the present invention, including a boss for spindle attachment,
FIG. 4 is a partially broken perspective view of the rotor shown in FIG. 3,
FIG. 5 is a cross-sectional view perpendicular to the axis of a centrifugal pump using the rotor shown in each of the above drawings,
FIG. 6 is a vertical cross-sectional view of the main part of the centrifugal pump shown in FIG.
FIG. 7 is a longitudinal sectional view including a main shaft mounting boss part of a main part of the centrifugal pump shown in FIG.

図1及び2において、10は本発明に係る渦巻ポンプの回転子で、渦巻ポンプの羽根車ポンプ部10A及び軸流ポンプ部10Bとから成る。本実施例において、羽根車ポンプ部10Aと軸流ポンプ部10Bは、一体的に構成されているが、これは別体として構成し、ボルトなどで結合しても良いこと勿論である。
尚、これらの図においては、主軸が挿入されるボス部が省略されている。
図3及び４に示されたものは、図1及び2に示した回転子10と同じものであるが、これらの図では、図1及び2では省略されたボス部まで表示してある。
本実施例は片吸込み型であるので、羽根車ポンプ部10Aは、複数の渦巻状の羽根10A1と、吸込み側のシュラウド10A2、その反対側のシュラウド10A3とから成り、軸流ポンプ部10Bは、吸込み側のシュラウド10A2と一体に形成された円筒部10B2とその内部に一体的に構成された軸流ラセン翼10B1とから成る。
羽根車ポンプ部10Aは、公知の渦巻ポンプのものと同様であるが、相当小型になっている。 1 and 2, reference numeral 10 denotes a rotor of a centrifugal pump according to the present invention, which includes an impeller pump section 10A and an axial pump section 10B of the centrifugal pump. In this embodiment, the impeller pump section 10A and the axial flow pump section 10B are integrally formed. However, it is needless to say that the impeller pump section 10A and the axial flow pump section 10B may be formed separately and connected by bolts or the like.
In these drawings, the boss into which the main shaft is inserted is omitted.
What is shown in FIGS. 3 and 4 is the same as the rotor 10 shown in FIGS. 1 and 2, but in these figures, the boss portion omitted in FIGS. 1 and 2 is shown.
Since the present embodiment is a single suction type, the impeller pump unit 10A includes a plurality of spiral blades 10A1, a suction side shroud 10A2, and a shroud 10A3 on the opposite side, and the axial flow pump unit 10B includes: It is composed of a cylindrical portion 10B2 formed integrally with the shroud 10A2 on the suction side and an axial flow spiral blade 10B1 integrally formed inside the cylindrical portion 10B2.
The impeller pump section 10A is similar to that of a known volute pump, but is considerably smaller.

図5ないし図7において、100は本考案に係る渦巻ポンプ、20はそのケーシング、30は回転子10が取付けられる主軸である。
尚、図5及び6では図中左側、即ちモーター側のケーシング、スタフィングボックス及びベアリングは図示を省略してある。
ケーシング20は、吸込管20A及び吐出管20Bを具備する． 5 to 7, reference numeral 100 denotes a centrifugal pump according to the present invention, reference numeral 20 denotes its casing, and reference numeral 30 denotes a main shaft on which the rotor 10 is mounted.
In FIGS. 5 and 6, the casing, stuffing box and bearing on the left side of the figure, that is, the motor side are omitted.
The casing 20 includes a suction pipe 20A and a discharge pipe 20B.

軸流ポンプ部10Bのケーシングは、吸込み側のシュラウド10A2と一体に形成された円筒部10B2であり、その外面は、図6及び図7に示す如く、ポンプの吸込管20Aの内面との間に微小な間隙を介して対向しており、揚水された高圧側の水が吸込み側に逆流しないようになっている。 The casing of the axial flow pump section 10B is a cylindrical section 10B2 formed integrally with the shroud 10A2 on the suction side, and its outer surface is located between the inner surface of the suction pipe 20A of the pump as shown in FIGS. They face each other with a small gap therebetween, so that the pumped high-pressure water does not flow back to the suction side.

円筒部10B2の内部には、軸流ラセン翼10B1が一体的に形成されており、軸流ポンプとして作動するようになっている。
即ち、この円筒部10B2及び軸流ラセン翼10B1から成る軸流ポンプ部10　　　　　　　　　Bは、羽根車ポンプ部10Aと共に回転し、吸込管から吸引した液体を羽根車ポンプ部10Aの低圧部に向けて圧送する。 An axial flow spiral blade 10B1 is integrally formed inside the cylindrical portion 10B2, and operates as an axial flow pump.
That is, the axial flow pump section 10B including the cylindrical section 10B2 and the axial flow spiral blade 10B1 rotates together with the impeller pump section 10A, and pumps the liquid sucked from the suction pipe toward the low pressure section of the impeller pump section 10A. I do.

このため、ポンプ全体としての揚程及び揚液量が、羽根車ポンプ部10Aのみのポンプに比して増大することとなる。
従って、ポンプの揚液特性を同じにすれば良いとすれば、羽根車ポンプ部10Aを小型化できるものである。
尚、本考案の構成は叙上の実施例に限定されるものでなく、例えば、上記の説明では、回転子を単一部品として一体の構成とするよう説明したが、これは各部を別々に製作し、組み立てるようにしても良く、又、回転子各部の構成は自由に設計変更し得るものであり、更に本考案は両吸込み型のポンプにも適用でき、本考案はこれら総ての変更例を包摂するものである。 For this reason, the head and the pumping amount of the pump as a whole are increased as compared with the pump having only the impeller pump unit 10A.
Therefore, if it is sufficient to make the pumping characteristics of the pump the same, the impeller pump unit 10A can be downsized.
In addition, the configuration of the present invention is not limited to the above-described embodiment. For example, in the above description, the rotor is described as a single component as an integral configuration, but each component is separately configured. It may be manufactured and assembled, and the configuration of each part of the rotor can be freely changed in design. Further, the present invention can be applied to both suction type pumps, and the present invention is applicable to all of these changes. It is an inclusive example.

本考案によるときは、極めてコンパクトで揚水特性に優れた渦巻ポンプを提供し得る。 According to the present invention, it is possible to provide a centrifugal pump that is extremely compact and has excellent pumping characteristics.

本考案に係る渦巻ポンプの羽根車の主軸取付部を除いた主要部分の構成を示す斜視図である。FIG. 4 is a perspective view showing a configuration of a main part of the centrifugal pump according to the present invention, excluding a main shaft mounting portion of the impeller. 図1に示した羽根車の主要部分の一部破断斜視図である。FIG. 2 is a partially cutaway perspective view of a main part of the impeller shown in FIG. 主軸取付け部を含む、本考案に係る渦巻ポンプの羽根車の構成を示す斜視図である。FIG. 3 is a perspective view showing a configuration of an impeller of the centrifugal pump according to the present invention, including a spindle mounting portion. 図3に示した羽根車の一部破断斜視図である。FIG. 4 is a partially cutaway perspective view of the impeller shown in FIG. 上記各図に示された羽根車を用いた渦巻ポンプの軸直角断面図である。FIG. 2 is a cross-sectional view perpendicular to the axis of a centrifugal pump using the impeller shown in each of the drawings. 図5に示した渦巻ポンプの要部の主軸取付部の一部を省略した縦断面図である。FIG. 6 is a longitudinal sectional view in which a part of a main shaft mounting portion of a main part of the centrifugal pump shown in FIG. 図5に示した渦巻ポンプの要部の主軸取付部を含む縦断面図である。FIG. 6 is a longitudinal sectional view including a main shaft mounting portion of a main part of the centrifugal pump shown in FIG.

符号の説明Explanation of reference numerals

100　　渦巻ポンプ
10　　回転子
10A　　羽根車ポンプ部
10A1　　複数の渦巻状の羽根
10A2　　吸込み側のシュラウド
10A3　　反対側のシュラウド
10B　　軸流ポンプ部
10B1　　軸流ラセン翼
10B2　　円筒部
20　　ケーシング
20A　　吸込管
20B　　吐出管
30　　主軸 100 centrifugal pump
10 rotor
10A impeller pump section
10A1 Multiple spiral blades
10A2 Shroud on suction side
10A3 Opposite shroud
10B Axial pump
10B1 Axial spiral wing
10B2 cylindrical part
20 Casing
20A suction pipe
20B discharge pipe
30 spindle

Claims (1)

吸込管と吐出管を備えたケーシングと、ケーシングの少なくとも一方の側壁を貫通し外部に設けた原動機により駆動され回転する主軸と、主軸に同軸に取付けられた一対のシュラウドに挟まれた複数の渦巻状の羽根から成る回転子と、を具備する渦巻ポンプにおいて、
回転子（10）を、
一対のシュラウド（10A2、10A3）と、それらのシュラウド（10A2、10A3）に挟まれた複数の渦巻状の羽根（10A1）とから成る羽根車ポンプ部（10A）と、
羽根車ポンプ部（10A）の吸込管側のシュラウド（10A2）と同軸に設けられ、ケーシング（20）の吸込管（20A）を形成する部分の内壁面との間に微小間隙を介して対向する外壁面を有し、羽根車（10A）の低圧部に通じる円筒部（10B2）と、円筒部（10B2）の内部に回転時に液体を羽根車ポンプ部（10A）の吸込み部に送出し得る軸流ラセン羽根（10B1）とから成る軸流ポンプ部（10B）と、
により構成することを特徴とする上記の渦巻ポンプ（100）。 A casing provided with a suction pipe and a discharge pipe, a main shaft which penetrates at least one side wall of the casing and is driven and rotated by a motor provided outside, and a plurality of spirals sandwiched between a pair of shrouds coaxially mounted on the main shaft And a rotor composed of a plurality of blades,
Rotor (10)
An impeller pump section (10A) including a pair of shrouds (10A2, 10A3) and a plurality of spiral blades (10A1) sandwiched between the shrouds (10A2, 10A3);
It is provided coaxially with the shroud (10A2) on the suction pipe side of the impeller pump section (10A), and faces the inner wall surface of the portion forming the suction pipe (20A) of the casing (20) via a minute gap. A cylindrical portion (10B2) having an outer wall surface and communicating with a low-pressure portion of the impeller (10A), and a shaft capable of sending liquid to a suction portion of the impeller pump portion (10A) when rotating inside the cylindrical portion (10B2). An axial pump section (10B) composed of a flow spiral blade (10B1);
The centrifugal pump (100) described above, characterized in that:
JP2003271214U 2002-09-20 2003-09-16 Centrifugal pump Expired - Fee Related JP3100455U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101822619B1 (en) * 2017-11-24 2018-01-26 주식회사 신한알앤디 A Centrifugal pump with swirl flow generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101822619B1 (en) * 2017-11-24 2018-01-26 주식회사 신한알앤디 A Centrifugal pump with swirl flow generator

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