JPS6127999U

JPS6127999U - jet pump

Info

Publication number: JPS6127999U
Application number: JP11118984U
Authority: JP
Inventors: 正則青木
Original assignee: 株式会社荏原製作所
Priority date: 1984-07-24
Filing date: 1984-07-24
Publication date: 1986-02-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

７第１図は従来のジェットポンプの縦断面図、第２図
は本考案の第１実施例に係るジェットポンプの縦断面図
、第３図は本考案の第２実施例に係るジェットポンプの
縦断面図、第４図イ，口は本考案の第３実施例に係るジ
ェットポンプてイは縦断面図、口はイのＡ−Ａ線断面図
、第５図イ，口は本考案の第４実施例に係るジェットポ
ンプてイは縦断面図、口はイのＡ−Ａ線断面図である。１・・・・・・被駆動流体吸込口、２・・・・・・混合
流路、３・・・・・・ノズル、４・・・・・・駆動流体
供給路、５・・曲駆動流体導入管、６・・・・・・流体
抵抗物、７・・・・・・旋回流防止板、訃・・・・・連
結部材、９・・・・・・スペーサ、１０・・・・・・Ｏ
リング。7. Fig. 1 is a longitudinal cross-sectional view of a conventional jet pump, Fig. 2 is a longitudinal cross-sectional view of a jet pump according to a first embodiment of the present invention, and Fig. 3 is a longitudinal cross-sectional view of a jet pump according to a second embodiment of the present invention. A vertical sectional view, Fig. 4A, the mouth is a jet pump according to the third embodiment of the present invention. The jet pump according to the fourth embodiment is a vertical cross-sectional view, and the mouth is a cross-sectional view taken along line A-A of A. DESCRIPTION OF SYMBOLS 1... Driven fluid suction port, 2... Mixing flow path, 3... Nozzle, 4... Driving fluid supply path, 5... Curved drive Fluid introduction pipe, 6...Fluid resistor, 7...Swirling flow prevention plate, end...Connecting member, 9...Spacer, 10...・・O
ring.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

（１）駆動流体が被駆動流体吸込口の外周から噴出する
外周噴流形ジ・エットポンブにおいて、駆動流体に助走
距離を与えて駆動流体を軸対称流とする駆動流体供給路
を備えていて、該駆動流体供給路とノズルの下流に位置
する混合流路とを二重円筒形状となし、駆動流体供給路
に流入した駆動流体は駆動流体供給路で軸対称流とされ
て、そのままノズル付近で内径側へ反転し、軸対称流と
してノズルから混合流路へ導かれるごとく構成されてい
ることを特徴とするジェットポンプ。(1) A peripheral jet jet pump in which the driving fluid is ejected from the outer periphery of the driven fluid suction port, which is provided with a driving fluid supply path that gives the driving fluid a run-up distance to make the driving fluid an axially symmetrical flow; The driving fluid supply path and the mixing flow path located downstream of the nozzle have a double cylindrical shape, and the driving fluid that flows into the driving fluid supply path is made into an axially symmetrical flow in the driving fluid supply path, and the inner diameter remains in the vicinity of the nozzle. A jet pump characterized in that the jet pump is configured such that the flow is reversed to the side and guided as an axially symmetrical flow from a nozzle to a mixing flow path.

（２）駆動流体に助走距離を与えて駆動流体を軸対称流
とする駆動流体供給路の長さしがノズルの下流に位置す
る混合流路の内径Ｄの２倍以上であることを特徴とする
実用新案登録請求の範囲第１項に記載のジェットポンプ
。(2) The length of the driving fluid supply path that gives the driving fluid a run-up distance to make the driving fluid an axially symmetrical flow is at least twice the inner diameter D of the mixing flow path located downstream of the nozzle. A jet pump according to claim 1 of the utility model registration claim.

（３）ノズルから混合流路へ流出する流れが比較的短い
助走距離でも軸対称流となるように駆動流体供給路中に
流体抵抗物を設けたことを特徴とする実用新案登録請求
の範囲第１項に記載のジェットポンプ。(3) Utility model registration claim No. 1 characterized in that a fluid resistance object is provided in the drive fluid supply path so that the flow flowing out from the nozzle to the mixing flow path becomes an axially symmetrical flow even over a relatively short run-up distance. The jet pump according to item 1.

（４）ノズルから混合流路へ流出する流れが旋回速度成
分をもたないように、駆動流体供給路中に旋回防止板を
設けたことを特徴とする実用新案登録請求の範囲第１項
に記載のジェットポンプ。(4) Claim 1 of the utility model registration is characterized in that a swirl prevention plate is provided in the driving fluid supply channel so that the flow flowing out from the nozzle into the mixing channel does not have a swirl velocity component. Jet pump as described.

（５）ポンチを、被駆動流体吸込口を形成する部品と混
合流路を形成する部品とに分割可能とし、両部品の間に
異なる寸法のスペーサを介在させて両部品を連結するこ
とによりノズルの幅を調整可能としたことを特徴とする
実用新案登録請求の範囲第１項に記載のジェットポンプ
。(5) The punch can be divided into a part that forms the driven fluid suction port and a part that forms the mixing flow path, and a spacer of different size is interposed between the two parts to connect the two parts, thereby creating a nozzle. The jet pump according to claim 1, wherein the width of the jet pump is adjustable.