CN205533432U - Novel water jet propulsion pump device - Google Patents

Novel water jet propulsion pump device Download PDF

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Publication number
CN205533432U
CN205533432U CN201620088445.4U CN201620088445U CN205533432U CN 205533432 U CN205533432 U CN 205533432U CN 201620088445 U CN201620088445 U CN 201620088445U CN 205533432 U CN205533432 U CN 205533432U
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CN
China
Prior art keywords
spout
oval
pump
jet propulsion
section
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201620088445.4U
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Chinese (zh)
Inventor
成立
夏臣智
袁红彦
祁卫军
刘超
周济人
金燕
杨帆
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Yangzhou University
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Yangzhou University
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Priority to CN201620088445.4U priority Critical patent/CN205533432U/en
Application granted granted Critical
Publication of CN205533432U publication Critical patent/CN205533432U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a novel water jet propulsion pump device belongs to ship engineering technical field, advancing the oval spout that advances the pump stator to export in the pump, characterized by including installing: the imported section of oval spout is circular, and the sectional diameter of import equals with the stator export cross section diameter who impels the pump stator, the export section of oval spout is oval, the imported section of oval spout and the transition between the export section are passed through for the cubic spline curve. The utility model discloses rational in infrastructure simple, manufacture easy, convenient to use, the utility model discloses it is structural reasonable, simple and the science is based on hydrodynamics principle, space geometry and water jet propulsion pump design theory, to the innovation of water jet propulsion pump device, straight line convergent transition circle spout through the reasonable water section design that crosses, makes the high -speed water that flows from spraying pump produce the propulsive efficiency of great reaction force, improvement device when it spout.

Description

A kind of oval spout of novel hydraulic jet propulsion pump installation
Technical field
The utility model relates to the oval spout of a kind of novel hydraulic jet propulsion pump installation, belongs to Marine engineering technical field.
Background technology
Hydraulic jet propulsion pump installation is a kind of novel extraordinary power set being different from screw propelling, the thrust of hydraulic jet propulsion is that the reaction force of the current sprayed by propulsion pump is obtained, and by control vane and the distribution of falling rudder and steering gear with change the direction of jet flow and realize the manipulation of boats and ships.Hydraulic jet propulsion pump installation glider, wear wave ship contour performance naval vessel on have a wide range of applications.The thrust of hydraulic jet propulsion pump installation is that the reaction force of the current by advancing pump ejection obtains.Spout is as the important component part in hydraulic jet propulsion pump installation, and its Main Function is that the pressure energy of current is converted into further kinetic energy by contraction geometrically, improves the flow velocity of current and then obtains higher thrust.If orifice design is proper, then when current are sprayed by it, energy loss is less, and hydraulic jet propulsion system can obtain relatively high thrust, and then improves the propulsive efficiency of device;On the contrary, if orifice design is improper, then the propulsive efficiency of whole spray pump installation can be caused to reduce.Hydraulic jet propulsion pump installation nozzle formations is single at present.Authorize utility model patent 2013207904436 " the adjustable spout of axial flow pump for water jet propulsion " to disclose a kind of adjustable spout, change the spacing of spout and the pump housing by bearing and then realize adjustable spout.Utility model patent 2007200584893 " navigating changing device of a kind of water jet propulsion ship " is authorized to propose the propelling pump spout that a kind of forward position is connected and the rudder shell matched with propelling pump spout with propelling pump, rudder shell forward position is contacted with the rear edge cooperation advancing pump spout by connector, rudder shell can swing around advancing pump spout centered by connector, the forward position of described rudder shell is that cambered surface coordinates with the rear edge advancing pump spout, and the inner surface advancing pump spout is fairing globoidal structure.Due to this patent pump discharge and spout intermediate shape change complexity, the overall hydraulic jet propulsion system hydraulic performance of impact.
Should be used for from present, the shape of hydraulic jet propulsion system spout is circle, is easily caused circular central flow velocity higher, and its elsewhere flow velocity is low, affects device hydraulic performance and plays.
Utility model content
The purpose of this utility model is the deficiency promoted whole device performance for existing hydraulic jet propulsion pump installation spout, it is provided that the oval spout of a kind of novel hydraulic jet propulsion pump installation.
The purpose of this utility model is realized in, a kind of oval spout of novel hydraulic jet propulsion pump installation, the interior oval spout advancing the outlet of pump stator of pump is advanced including being arranged on, it is characterized in that: the admission section of described oval spout is circle, and the diameter of admission section and the stator Outlet Section equal diameters advancing pump stator;The Outlet Section of described oval spout is oval;Transition between admission section and the Outlet Section of oval spout is cubic spline curve transition.
Semi-major axis and the ratio of semi-minor axis that described Outlet Section is oval are 1.3.
The area of described Outlet Section is advance Beng Nei blade wheel chamber Outlet Section area 0.15 times.
Described oval spout length in the axial direction advances Beng Nei blade wheel chamber Outlet Section diameter equal to 0.315.
The utility model is rational in infrastructure simply, it is easy, easy to use to manufacture, pass through the utility model, oval spout is arranged on the propelling pump stator outlet advancing pump, the admission section of oval spout is circular, the diameter of the admission section of oval spout and the Outlet Section equal diameters advancing pump stator;The Outlet Section of oval spout is oval, and the semi-major axis (a) of Outlet Section and the ratio of semi-minor axis (b) are 1.3, and 0.15 times that the area of Outlet Section is blade wheel chamber's Outlet Section (advancing the impeller outlet section of impeller of pump in advancing pump) area.Transition between oval spout admission section and Outlet Section is cubic spline curve transition.Oval spout length (L) in the axial direction is equal to 0.315 blade wheel chamber's Outlet Section (advancing the impeller outlet section of impeller of pump in advancing pump) diameter.The outlet of this oval spout uses oval Internal periphery, and its cross-sectional area has carried out hydraulic optimization so that hydraulic jet propulsion pump installation efficiency and thrust of whole device after installing oval spout all increases significantly.
Hydraulic jet propulsion pump installation is absorbed water by water inlet flow channel, pressurization is accelerated by the effect of impeller of pump, again through the rectified action of stator, form certain band and rotate the helical form jet flow of circular rector, under effect of the present utility model, progressively helical form high-voltage high-speed water body flow is changed into after the uniform jet of cross-sectional flow flows to air, form hydraulic jet propulsion system thrust.
The utility model uses fluid mechanics principle, geometry of space and water jet propulsion pump design theory, innovation to water jet propulsion pump spout, oval spout outlet section uses ellipse, it it is the innovation to conventional spout form, area and axial ratio to oval spout outlet section are optimized design, in addition oval spout is imported and exported excessively form and the suitable selection of vent length between section, the high speed water body flowed out from water jet propulsion pump is made to be more uniformly distributed when it sprays, produce bigger thrust, improve the propulsive efficiency of hydraulic jet propulsion pump installation.
To sum up, reasonable, simple and science in the utility model structure, it is based on fluid mechanics principle, geometry of space and water jet propulsion pump design theory, innovation to hydraulic jet propulsion pump installation, described straight line tapering transition circle spout, designed by the rational cross-section of river, make the high speed water body flowed out from spray pump produce bigger reaction force when it sprays, improve the propulsive efficiency of device.
It is known that hydraulic jet propulsion pump installation has, propulsive efficiency is high, noise and vibration little, the plurality of advantages such as drive mechanism is simple, be therefore used widely on commercial high-speed ship and military boats and ships.Spout is as the important component part in hydraulic jet propulsion pump installation, and its Main Function is to be the kinetic energy etc. of current by the changes mechanical energy of rotary pump, and sprays current to obtain thrust.If orifice design is proper, then current can produce bigger reaction force by it when being sprayed, and then improves the propulsive efficiency of device;On the contrary, then the propulsive efficiency that can cause whole spray pump installation reduces.By the oval spout of novel hydraulic jet propulsion pump installation of the present utility model, current can produce bigger reaction force by it when being sprayed, and then improves the propulsive efficiency of device.
The advantage advanced compared to screw along with hydraulic jet propulsion pump installation gradually manifests, and the application in high speed naval vessels field of the hydraulic jet propulsion pump installation can more and more extensive advantage.The factors such as the raising due to social development demand and people's living standard, the requirement of high speed naval vessels is also being gradually stepped up by country.Therefore this patent can be applied and implement, and the propulsive efficiency for hydraulic jet propulsion pump installation has significant effect.This will produce bigger economic worth and social benefit.
Accompanying drawing explanation
Fig. 1 is the water jet propulsion pump line chart being provided with oval spout.
Fig. 2 is the utility model ellipse spout vertical section line chart.
Fig. 3 is the utility model ellipse spout outlet section line chart.
In figure: 1 oval spout, 2 propelling pump stators, 3 propelling impeller of pump, 4 water inlet flow channels, 5 stator Outlet Sections, 6 blade wheel chamber's Outlet Sections, 7 admission sections, 8 Outlet Sections.
Detailed description of the invention
Illustrate the utility model is further described below in conjunction with accompanying drawing and accompanying drawing.
In accompanying drawing, arrow be current side to, water inlet flow channel 4 is connected with water jet propulsion pump, advances impeller of pump 3 to be arranged in the blade wheel chamber in water jet propulsion pump.
In figure, the propelling pump stator 2 that oval spout 1 is arranged on water jet propulsion pump exports, admission section 7 diameter of oval spout 1 and stator Outlet Section 5 equal diameters advancing pump stator 2, the Outlet Section 8 of oval spout 1 is oval, the semi-major axis of Outlet Section 8 ellipse and semi-minor axis ratio are 1.3, the area of Outlet Section 8 is blade wheel chamber's Outlet Section 6 area of 0.15 times, blade wheel chamber's Outlet Section 6 diameter of a length of 0.315 times between admission section 7 and the Outlet Section 8 of oval spout 1, transition shape line between admission section 7 and the Outlet Section 8 of oval spout 1 is cubic spline curve.
In Fig. 2, oval spout 1 length in the axial direction can be set as L by us, in Fig. 3, the semi-major axis of Outlet Section 8 can be set as a by us, the semi-minor axis of Outlet Section 8 is set as b, according to above-mentioned, L advances Beng Nei blade wheel chamber Outlet Section 6 diameter equal to 0.315, and the ratio of a Yu b is 1.3.

Claims (4)

1. the oval spout of a novel hydraulic jet propulsion pump installation, the interior oval spout (1) advancing pump stator (2) to export of pump is advanced including being arranged on, it is characterized in that: the admission section (7) of described oval spout (1) is circle, and the diameter of admission section (7) and stator Outlet Section (5) equal diameters advancing pump stator (2);The Outlet Section (8) of described oval spout (1) is oval;Transition between admission section (7) and the Outlet Section (8) of oval spout (1) is cubic spline curve transition.
The oval spout of a kind of novel hydraulic jet propulsion pump installation the most according to claim 1, is characterized in that: semi-major axis and the ratio of semi-minor axis that described Outlet Section (8) is oval are 1.3.
The oval spout of a kind of novel hydraulic jet propulsion pump installation the most according to claim 1, is characterized in that: the area of described Outlet Section (8) is advance Beng Nei blade wheel chamber Outlet Section (6) area 0.15 times.
The oval spout of a kind of novel hydraulic jet propulsion pump installation the most according to claim 1, is characterized in that: described oval spout (1) length in the axial direction advances Beng Nei blade wheel chamber Outlet Section (6) diameter equal to 0.315.
CN201620088445.4U 2016-01-29 2016-01-29 Novel water jet propulsion pump device Expired - Fee Related CN205533432U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620088445.4U CN205533432U (en) 2016-01-29 2016-01-29 Novel water jet propulsion pump device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620088445.4U CN205533432U (en) 2016-01-29 2016-01-29 Novel water jet propulsion pump device

Publications (1)

Publication Number Publication Date
CN205533432U true CN205533432U (en) 2016-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620088445.4U Expired - Fee Related CN205533432U (en) 2016-01-29 2016-01-29 Novel water jet propulsion pump device

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105545817A (en) * 2016-01-29 2016-05-04 扬州大学 Oval nozzle of novel water spraying propelling pump device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105545817A (en) * 2016-01-29 2016-05-04 扬州大学 Oval nozzle of novel water spraying propelling pump device
CN105545817B (en) * 2016-01-29 2018-09-14 扬州大学 A kind of oval spout of hydraulic jet propulsion pump installation

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160831

Termination date: 20190129

CF01 Termination of patent right due to non-payment of annual fee