CN105545816A - Linear gradually-shrunk transition round nozzle of water spraying propelling pump device - Google Patents
Linear gradually-shrunk transition round nozzle of water spraying propelling pump device Download PDFInfo
- Publication number
- CN105545816A CN105545816A CN201610060842.5A CN201610060842A CN105545816A CN 105545816 A CN105545816 A CN 105545816A CN 201610060842 A CN201610060842 A CN 201610060842A CN 105545816 A CN105545816 A CN 105545816A
- Authority
- CN
- China
- Prior art keywords
- shrunk
- pump
- round nozzle
- transition
- spout
- 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.)
- Pending
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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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/528—Casings; Connections of working fluid for axial pumps especially adapted for liquid pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
- B63H2011/081—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type with axial flow, i.e. the axis of rotation being parallel to the flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/20—Three-dimensional
- F05D2250/23—Three-dimensional prismatic
- F05D2250/232—Three-dimensional prismatic conical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a linear gradually-shrunk transition round nozzle of a water spraying propelling pump device and belongs to the technical field of ship engineering. The linear gradually-shrunk transition round nozzle comprises a linear gradually-shrunk transition round nozzle body installed on a propelling pump guide vane outlet in a propelling pump. The linear gradually-shrunk transition round nozzle is characterized in that the inlet fracture surface of the linear gradually-shrunk transition round nozzle body is round, and the diameter of the inlet fracture surface is equal to that of the guide vane outlet fracture surface of a propelling pump guide vane; the outlet fracture surface of the linear gradually-shrunk transition round nozzle body is round; and transition between the inlet fracture surface and the outlet fracture surface of the linear gradually-shrunk transition round nozzle body is linear transition. The linear gradually-shrunk transition round nozzle is reasonable, simple and scientific in structure and is an innovation, based on the fluid mechanics principle, space geometry and a water spraying propelling pump design theory, of the water spraying propelling pump device; and because of reasonable water passing fracture surface design, the linear gradually-shrunk transition round nozzle makes high-speed water flowing out of a spraying pump generate large reacting force when the high-speed water is sprayed out, and the propelling efficiency of the device is improved.
Description
Technical field
The present invention relates to a kind of straight line tapering transition circle spout of hydraulic jet propulsion pump-unit, belong to Marine engineering technical field.
Background technique
Hydraulic jet propulsion pump-unit is a kind of novel extraordinary power plant being different from propeller cavitation and advancing, the thrust of hydraulic jet propulsion is that the reaction force of the current sprayed by propulsion pump is obtained, and realizes the manipulation of boats and ships by control vane and the distribution of falling rudder and steering gear and the direction that changes jet flow.Hydraulic jet propulsion pump-unit at skimming boat, wear on the contour performance naval vessel of unrestrained ship and have a wide range of applications.The thrust of hydraulic jet propulsion pump-unit is that the reaction force of the current sprayed by boost pump is obtained.Spout is as the important component part in hydraulic jet propulsion pump-unit, and its Main Function converts the pressure energy of current to kinetic energy further by contraction geometrically, improves the flow velocity of current and then obtains higher thrust.If orifice design is proper, then current are less by energy loss during its ejection, and hydraulic jet propulsion system can obtain comparatively 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-unit can be caused to reduce.Current hydraulic jet propulsion pump-unit nozzle formations is single.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 " a kind of navigating changing device of water jet propulsion ship " is authorized to propose the boost pump spout that a kind of forward position is connected with boost pump and the rudder shell matched with boost pump spout, rudder shell forward position is contacted along coordinating with the rear of boost pump spout by link, rudder shell can swing around boost pump spout centered by link, the forward position of described rudder shell and the rear edge of boost pump spout are that cambered surface coordinates, and the internal surface of boost pump spout is fairing globoidal structure.Because this patent pump discharge and spout intermediate shape change complexity, affect overall hydraulic jet propulsion system hydraulic performance.
Summary of the invention
The object of the invention is the deficiency whole device performance promoted for existing hydraulic jet propulsion pump-unit spout, provide a kind of straight line tapering transition circle spout of hydraulic jet propulsion pump-unit.
The object of the present invention is achieved like this, a kind of straight line tapering transition circle spout of hydraulic jet propulsion pump-unit, comprise the straight line tapering transition circle spout being arranged on boost pump stator outlet in boost pump, it is characterized in that: the admission section of described straight line tapering transition circle spout is for circular, and the stator Outlet Section equal diameters of the diameter of admission section and boost pump stator; The Outlet Section of described straight line tapering transition circle spout is circular; Transition between the admission section of straight line tapering transition circle spout and Outlet Section is straight transitions.
The area of described Outlet Section is 0.15 times of blade wheel chamber's Outlet Section area in boost pump.
Described straight line tapering transition circle spout length in the axial direction equals blade wheel chamber's Outlet Section diameter in 0.315 boost pump.
The present invention rational in infrastructure simple, manufacture easy, easy to use, pass through the present invention, straight transitions circle spout is arranged on the outlet of boost pump stator, and the admission section of straight line tapering transition circle spout is circular, and the stator Outlet Section equal diameters of the diameter of admission section and boost pump stator; The Outlet Section of straight transitions circle spout is circular, and the area of Outlet Section is 0.15 times of blade wheel chamber's Outlet Section area.Transition between straight transitions circle spout admission section and Outlet Section is straight transitions.Straight transitions circle spout length in the axial direction (L) equals 0.315 impeller outlet cross section diameter.
The present invention uses fluid mechanics principle, geometry of space and water jet propulsion pump design theory, to the innovation of hydraulic jet propulsion pump-unit, described straight line tapering transition circle spout, selected by rational flow cross-section design and suitable interim form, make the high speed water body flowed out from hydraulic jet propulsion pump-unit produce larger thrust when it sprays, improve the propulsive efficiency of device.
To sum up, in structure of the present invention rationally, simple and science, based on fluid mechanics principle, geometry of space and water jet propulsion pump design theory, to the innovation of hydraulic jet propulsion pump-unit, described straight line tapering transition circle spout, designed by rational flow cross-section, make the high speed water body flowed out from spray pump produce larger reaction force when it sprays, improve the propulsive efficiency of device.
As everyone knows, hydraulic jet propulsion pump-unit has that propulsive efficiency is high, noise and vibration little, the plurality of advantages such as drive mechanism is simple, are 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-unit, and its Main Function is the kinetic energy etc. of current by the changes mechanical energy of rotary pump, and by current ejection to obtain thrust.If orifice design is proper, then can produce larger reaction force when current are sprayed by it, and then improve the propulsive efficiency of device; On the contrary, then the propulsive efficiency of whole spray pump-unit can be caused to reduce.By the straight line tapering transition circle spout of hydraulic jet propulsion pump-unit of the present invention, larger reaction force can be produced when current are sprayed by it, and then improve the propulsive efficiency of device.
The advantage advanced compared to propeller cavitation along with hydraulic jet propulsion pump-unit manifests gradually, and the application of hydraulic jet propulsion pump-unit in high speed naval vessels field can more and more extensive advantage.Due to the factor such as raising of social development demand and people's living standard, country is also improving gradually to the requirement of high speed naval vessels.Therefore this patent can be applied and implement, and the propulsive efficiency for hydraulic jet propulsion pump-unit has significant effect.This will produce larger economic value and social benefit.
Accompanying drawing explanation
Fig. 1 is the water jet propulsion pump single line drawing being provided with oval spout.
Fig. 2 is the present invention's oval spout longitudinal plane single line drawing.
In figure: 1 straight line tapering transition circle spout, 2 boost pump stators, 3 boost pump impellers, 4 intake pipes, 5 stator Outlet Sections, 6 blade wheel chamber's Outlet Sections, 7 admission sections, 8 Outlet Sections.
Embodiment
Illustrate that the present invention is further illustrated below in conjunction with accompanying drawing and accompanying drawing.
In accompanying drawing, arrow is current side direction.Intake pipe 4 is connected with water jet propulsion pump, and boost pump impeller 3 is arranged in the blade wheel chamber in water jet propulsion pump.
As in figure, a kind of straight line tapering transition circle spout of hydraulic jet propulsion pump-unit, comprise the straight line tapering transition circle spout 1 being arranged on boost pump stator 2 in boost pump and exporting, the admission section 7 of straight line tapering transition circle spout 1 is circular, and stator Outlet Section 5 equal diameters of the diameter of admission section 7 and boost pump stator 2; The Outlet Section 8 of straight line tapering transition circle spout 1 is circular; Transition between the admission section 7 of straight line tapering transition circle spout 1 and Outlet Section 8 is straight transitions.The area of Outlet Section 8 is 0.15 times of blade wheel chamber's Outlet Section 6 area in boost pump.Straight line tapering transition circle spout 1 length in the axial direction equals blade wheel chamber's Outlet Section 6 diameter in 0.315 boost pump.
According to blade wheel chamber's discharge area and the impeller inlet diameter of water jet propulsion pump, the area adopting the inventive method to arrange straight transitions circle spout outlet section 8 is 0.15 blade wheel chamber's discharge area, nozzle configuration is circular, spout section interim form is straight line convergent, vent length is 0.315 blade wheel chamber's outlet diameter, the spout designed by the present invention is contained in hydraulic jet propulsion pump discharge, make the high speed water body flowed out from hydraulic jet propulsion pump-unit produce larger thrust when it sprays, improve the propulsive efficiency of device.
As in Fig. 2, straight line tapering transition circle spout 1 length setting in the axial direction can be that L, L equal blade wheel chamber's Outlet Section 6 diameter in 0.315 boost pump by we.
Claims (3)
1. the straight line tapering transition circle spout of a hydraulic jet propulsion pump-unit, comprise and be arranged on straight line tapering transition circle spout (1) that in boost pump, boost pump stator (2) exports, it is characterized in that: the admission section (7) of described straight line tapering transition circle spout (1) is for circular, and stator Outlet Section (5) equal diameters of the diameter of admission section (7) and boost pump stator (2); The Outlet Section (8) of described straight line tapering transition circle spout (1) is circular; Transition between the admission section (7) of straight line tapering transition circle spout (1) and Outlet Section (8) is straight transitions.
2. the straight line tapering transition circle spout of a kind of hydraulic jet propulsion pump-unit according to claim 1, is characterized in that: the area of described Outlet Section (8) is 0.15 times of blade wheel chamber's Outlet Section (6) area in boost pump.
3. the straight line tapering transition circle spout of a kind of hydraulic jet propulsion pump-unit according to claim 1, is characterized in that: described straight line tapering transition circle spout (1) length in the axial direction equals blade wheel chamber's Outlet Section (6) diameter in 0.315 boost pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610060842.5A CN105545816A (en) | 2016-01-29 | 2016-01-29 | Linear gradually-shrunk transition round nozzle of water spraying propelling pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610060842.5A CN105545816A (en) | 2016-01-29 | 2016-01-29 | Linear gradually-shrunk transition round nozzle of water spraying propelling pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105545816A true CN105545816A (en) | 2016-05-04 |
Family
ID=55825256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610060842.5A Pending CN105545816A (en) | 2016-01-29 | 2016-01-29 | Linear gradually-shrunk transition round nozzle of water spraying propelling pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105545816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815828A (en) * | 2021-09-23 | 2021-12-21 | 中国船舶工业集团公司第七0八研究所 | Inflatable water jet propeller |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04159193A (en) * | 1990-10-22 | 1992-06-02 | Yamaha Motor Co Ltd | Propulsion device structure for water jet pusher boat |
| EP0764577A1 (en) * | 1995-04-28 | 1997-03-26 | Ishigaki Company Limited | Water jet propulsion machine for marine vessels |
| JPH1059287A (en) * | 1996-08-13 | 1998-03-03 | Ishigaki:Kk | Water jet propulsion device for ship |
| CN1652971A (en) * | 2002-05-06 | 2005-08-10 | 联邦国有机械制造企业“星” | Compact water-jet propulsion and steering system |
| CN201292005Y (en) * | 2008-11-10 | 2009-08-19 | 昆山市美吉动力机械科技有限公司 | Propulsion pump |
| CN101734362A (en) * | 2008-11-10 | 2010-06-16 | 昆山市美吉动力机械科技有限公司 | Boost pump |
| CN203604263U (en) * | 2013-09-30 | 2014-05-21 | 合肥华升泵阀有限责任公司 | Guide vane component based on water spraying boost pump |
| CN205533431U (en) * | 2016-01-29 | 2016-08-31 | 扬州大学 | Sharp convergent transition circle spout of water jet propulsion pump device |
-
2016
- 2016-01-29 CN CN201610060842.5A patent/CN105545816A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04159193A (en) * | 1990-10-22 | 1992-06-02 | Yamaha Motor Co Ltd | Propulsion device structure for water jet pusher boat |
| EP0764577A1 (en) * | 1995-04-28 | 1997-03-26 | Ishigaki Company Limited | Water jet propulsion machine for marine vessels |
| JPH1059287A (en) * | 1996-08-13 | 1998-03-03 | Ishigaki:Kk | Water jet propulsion device for ship |
| CN1652971A (en) * | 2002-05-06 | 2005-08-10 | 联邦国有机械制造企业“星” | Compact water-jet propulsion and steering system |
| CN201292005Y (en) * | 2008-11-10 | 2009-08-19 | 昆山市美吉动力机械科技有限公司 | Propulsion pump |
| CN101734362A (en) * | 2008-11-10 | 2010-06-16 | 昆山市美吉动力机械科技有限公司 | Boost pump |
| CN203604263U (en) * | 2013-09-30 | 2014-05-21 | 合肥华升泵阀有限责任公司 | Guide vane component based on water spraying boost pump |
| CN205533431U (en) * | 2016-01-29 | 2016-08-31 | 扬州大学 | Sharp convergent transition circle spout of water jet propulsion pump device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815828A (en) * | 2021-09-23 | 2021-12-21 | 中国船舶工业集团公司第七0八研究所 | Inflatable water jet propeller |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |