CN86206004U - Compound propellant device - Google Patents
Compound propellant device Download PDFInfo
- Publication number
- CN86206004U CN86206004U CN 86206004 CN86206004U CN86206004U CN 86206004 U CN86206004 U CN 86206004U CN 86206004 CN86206004 CN 86206004 CN 86206004 U CN86206004 U CN 86206004U CN 86206004 U CN86206004 U CN 86206004U
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- CN
- China
- Prior art keywords
- jet propulsion
- impeller
- type hydraulic
- propulsion system
- hydraulic efficiency
- 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.)
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Abstract
The utility model discloses a compound hydraulic propulsion device, which is a device combined with a cross flow type hydraulic jet propulsion device and a centrifugal type hydraulic jet propulsion device by utilizing the cross flow principle. The utility model comprises a multi-blade long impeller wheel which is rotated in a spiral casing. The spiral casing is provided with a water inlet barrel and a water outlet barrel. The water current enters into the work chamber of the impeller wheel through the water inlet barrel and is exhausted out though the water outlet barrel of the other side of the water inlet barrel after pressed by the impeller wheel; the impelling action is realized by using the counterforce. Because the cross flow type hydraulic jet propulsion device and the centrifugal type hydraulic jet propulsion device are integrated into one whole, and thus, the utility model can display the advantages of each device. The efficiency of the hydraulic jet propulsion is exerted fully, and the efficiency of the compound hydraulic propulsion device is reached to more than 80%.
Description
A kind of combined type hydraulic efficiency jet propulsion system belongs to oceangoing ship oceangoing ship Push Technology field, is the waterjet propulsion scope in the extraordinary propelling unit.
Existing hydraulic efficiency jet propulsion system according to " propulsion of ship " the book introduction of teaching, has only two kinds of forms: axial-flow type and centrifugal.Wherein the discharge capacity of axial-flow type is big, but lift is little, on the contrary centrifugal then.Still find no that both discharge capacity was big, the device that lift is also big, therefore existing hydraulic efficiency jet propulsion system, its efficient is not all fully developed.
It is big that the purpose of this utility model is to invent a kind of discharge capacity, and the high efficiency hydraulic efficiency jet propulsion system that lift is also big overcomes the deficiency of existing hydraulic efficiency jet propulsion system.
The utility model adopts the crossing current principle, and is auxiliary with the centrifugal realization the purpose of this utility model that matches.
Concerning in the chart from fluid machinery between diametral quotient δ rotating speed σ and the efficiency eta (edited " ventilating set " referring to Huazhong Institute of Technology Li Qingyi) as can be seen, axial-flow type is the scarp slope edge that is in efficiency curve, centrifugal is the adverse grade edge that is in efficiency curve, so the efficient of the fluid machinery of this dual mode all can not obtain best performance.And cross-flow fluid machinery is to be in the peak of efficiency curve to descending edge section, and it is not to work under low pressure and mass flow, the total head that it produced dynamic pressure no better than, thereby be comparatively ideal propelling unit.
Formation of the present utility model is made up of an impeller that can rotate in volute housing and a volute housing that has flooding tube and water output cylinder.Fig. 1 is that its volute housing of schematic perspective view of structure of the present utility model is to be made by the sheet material that certain thickness and intensity are arranged, Fig. 2 is its cutaway view, Fig. 3 is that its A-A is to view, volute housing is divided into into three component parts: flooding tube (1), water output cylinder (3) and impeller operating room (2).Flooding tube is the pipe that a transversal surface becomes rectangle; the lower end of pipe and impeller operating room link; the upper end of pipe is a water inlet; water inlet is inclination shape; shown in 1 among Fig. 2, its inclined angle alpha≤7 degree is provided with the anti-large-scale foreign matter of strip shape protective grille and enters in the water inlet; in the pipe of flooding tube, a dividing plate (4) is arranged with the flooding tube separated into two parts: cross-flow type flooding tube (5) and centrifugal flooding tube (6).The cross-flow type flooding tube directly is connected with the impeller operating room.Centrifugal flooding tube links by hole on the dividing plate and impeller operating room, and the position in the hole on the dividing plate is the center that is positioned at the impeller operating room.Water output cylinder is that a transversal surface is the pipe of rectangle, and the one end directly is connected with the impeller operating room, and the other end is that water outlet (8) water outlet is inverted rectangular funnel shape.The impeller operating room is a cylindrical cavity.The curve of its side is one section camber line of a circle.Radius of a circle equals the impeller outer circle diameter.The transversal surface of impeller operating room is a rectangle.The position on the centrifugal water inlet opposite of impeller operating room is provided with the position of bearing by dress, so that the axle of impeller is by link with main frame herein.
Impeller is that the leafy of a long tubular taken turns, and Fig. 6 is its constructional drawing, and it is to be set between the lid of rear and front end by microscler blade dress to constitute.Front end cover (9) is in the form of annular discs, and the axle of impeller (10) is loaded on the axis place of front end cover.Rear side housing (11) is an annulus that the center is porose.The hole at center is corresponding with the inlet opening of centrifugal water inlet.Blade is preceding bending, the radian R of blade
KRelevant with the diameter of impeller, R
K=
/ 4(DH
1-DH
2) R wherein
KBe the radian of blade, D
H2Be the external diameter of impeller, D
H1Internal diameter for impeller.
Working process of the present utility model is: after the main frame impeller rotation, and the crossing current water inlet portion, water is along entering impeller with the direction of impeller axis normal from a side of impeller, because the rotation of impeller makes water increase energy, water passes impeller inside, by the impeller opposite side, sprays from water outlet; Centrifugal part: after water enters flooding tube from water inlet, by the hole on the dividing plate along with the direction of paddle shaft line parallel, axially enter impeller, the impeller of rotation this moment plays the effect of centrifugal wheel again, and the water that enters is sprayed by water outlet behind impeller in centrifugal mode again.
The utility model is compared with existing hydraulic efficiency jet propulsion system, has tangible advantage:
The utility model be the boundary in axial-flow type and centrifugal between propelling unit, running through of water do not need to turn, the axle of mechanical device also needn't be turned.
2. the utility model does not need strong sealing.
3. the current spectral line at the utility model water outlet place is parallel each other, helps the raising of efficient.
4. go up from efficiency ratio, advance than general axis streaming propeller formula, efficient can improve more than 2 times.
5. the utility model manufacturing and maintenance are all very convenient, and the cost also propelling unit than common is cheap.
As embodiment of the present utility model, can from Fig. 4, Fig. 5, provide, the angle of the water inlet among this embodiment is 7 degree, and the outer subtended angle degree at water outlet place is 5 degree, and the length of impeller is 109 millimeters, and the blade radian is R
K=11, the external diameter R of impeller
H2=115 millimeters, the inside diameter D of impeller
H1=125 millimeters, the number of blade of impeller is 28 rectangular distributions.
Description of drawings:
Fig. 1 is a structural upright scheme drawing of the present utility model.
Fig. 2 is the front view of the utility model shell.
Fig. 3 is that the A-A of the utility model shell (Fig. 2) is to revolved sectional view.
Fig. 4 is the utility model structure assembly drawing.
Fig. 5 is that the utility model structure assembly drawing (Fig. 4) A-A is to cutaway view.
Fig. 6 is the constructional drawing of impeller of the present utility model.
Legend is as follows:
1, flooding tube 2, impeller operating room 3, water output cylinder 4, dividing plate 5, cross-flow type flooding tube 6, centrifugal flooding tube 7, grid 8, water outlet 9, preceding end plate 10, axle 11, back end plate 12, rivet 13, blade 14, cover plate 15, bearing seat
Claims (7)
1, a kind of combined type hydraulic efficiency jet propulsion system, it is made up of an impeller that can rotate in volute housing and a volute housing, it is characterized in that:
(1) its impeller is by radian R
K=
/ 4(DH
1-DH
2) several microscler blades combine,
(2) in correspondence with each other position on the volute housing, offered a flooding tube and a water output cylinder of forming by two chambeies respectively.
2, by the said combined type hydraulic efficiency jet propulsion system of claim 1, it is characterized in that said impeller, is microscler vane group to be contained on former and later two end plates form.
3, by the said combined type hydraulic efficiency jet propulsion system of claim 1, it is characterized in that said flooding tube is to be made of a rectangular long tube of transversal surface, there is a dividing plate of having opened a hole in the lower end will manage separated into two parts in the long tube, directly a part of and impeller operating room links, and another part links by the hole and the impeller operating room of dividing plate lower end.
4,, it is characterized in that the water inlet of said flooding tube is provided with the strip grid by the said combined type hydraulic efficiency jet propulsion system of claim 1.
5,, it is characterized in that said hydraulic efficiency jet propulsion system is a long tube that transversal surface is rectangular by the said combined type hydraulic efficiency jet propulsion system of claim 1.
6,, it is characterized in that said water inlet is a plane inclined, inclined angle alpha≤7 degree by the described combined type hydraulic efficiency jet propulsion system of claim 1～5.
7, by the said combined type hydraulic efficiency jet propulsion system of claim 1, the water outlet that it is characterized in that water output cylinder is an inverted rectangular funnel type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86206004 CN86206004U (en) | 1986-08-20 | 1986-08-20 | Compound propellant device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86206004 CN86206004U (en) | 1986-08-20 | 1986-08-20 | Compound propellant device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86206004U true CN86206004U (en) | 1987-11-07 |
Family
ID=4808737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86206004 Withdrawn CN86206004U (en) | 1986-08-20 | 1986-08-20 | Compound propellant device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86206004U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552678A (en) * | 2013-11-18 | 2014-02-05 | 陈广民 | Propeller lateral-rotation propelling method |
| CN104828203A (en) * | 2014-02-08 | 2015-08-12 | 王亮 | Self-power hydrofoilboat |
| CN105034727A (en) * | 2015-07-07 | 2015-11-11 | 朱沫 | Centrifugal pump type water jetting propulsion amphibious device and work method thereof |
| CN106314737A (en) * | 2016-09-20 | 2017-01-11 | 宋华权 | Novel shipborne binary double electric propeller |
| CN107757853A (en) * | 2017-10-24 | 2018-03-06 | 王凯甬 | One kind is without oar propeller |
-
1986
- 1986-08-20 CN CN 86206004 patent/CN86206004U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552678A (en) * | 2013-11-18 | 2014-02-05 | 陈广民 | Propeller lateral-rotation propelling method |
| CN104828203A (en) * | 2014-02-08 | 2015-08-12 | 王亮 | Self-power hydrofoilboat |
| CN105034727A (en) * | 2015-07-07 | 2015-11-11 | 朱沫 | Centrifugal pump type water jetting propulsion amphibious device and work method thereof |
| CN106314737A (en) * | 2016-09-20 | 2017-01-11 | 宋华权 | Novel shipborne binary double electric propeller |
| CN106314737B (en) * | 2016-09-20 | 2018-03-27 | 宋华权 | The new compound electric plating propulsion of warship binary |
| CN107757853A (en) * | 2017-10-24 | 2018-03-06 | 王凯甬 | One kind is without oar propeller |
| CN107757853B (en) * | 2017-10-24 | 2019-01-22 | 王凯甬 | A kind of no paddle propeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |