CN112407216A - Pulse jet flow water spray propulsion pump device based on electric valve at nozzle and using method thereof - Google Patents
Pulse jet flow water spray propulsion pump device based on electric valve at nozzle and using method thereof Download PDFInfo
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- CN112407216A CN112407216A CN202011299932.2A CN202011299932A CN112407216A CN 112407216 A CN112407216 A CN 112407216A CN 202011299932 A CN202011299932 A CN 202011299932A CN 112407216 A CN112407216 A CN 112407216A
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- nozzle
- water
- propulsion pump
- jet propulsion
- electric valve
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000007921 spray Substances 0.000 title claims description 11
- 238000005507 spraying Methods 0.000 claims 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- B63H11/09—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps by means of pressure pulses applied to a column of liquid, e.g. by ignition of an air/gas or vapour mixture
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention relates to a pulse jet flow water jet propulsion pump device based on an electric valve at a nozzle and a use method thereof, and the device comprises a motor and a water jet propulsion pump body, wherein one end of the water jet propulsion pump body is provided with a water inlet, the other end of the water jet propulsion pump body is provided with a nozzle, and a nozzle extension pipeline is arranged on the nozzle; the water inlet, the water jet propulsion pump body, the nozzle and the nozzle extension pipeline are sequentially communicated; the power output shaft of the motor extends into the water jet propulsion pump body, an impeller is fixed at one end of the power output shaft of the motor, which is arranged in the water jet propulsion pump body, the impeller is positioned in the water jet propulsion pump body, the front end of the impeller is provided with a plurality of guide blades and an outlet water guide cone, and the outlet water guide cone is positioned at the center of the front end of the impeller; the electric valve is installed at the nozzle, the electric valve is connected with an externally arranged pulse generator, and the pulse generator is connected with the control terminal, so that a control loop is formed. By the invention, the maneuverability of the water jet propulsion ship is improved.
Description
Technical Field
The invention relates to a pulse jet flow water spray propulsion pump device based on an electric valve at a nozzle and a using method thereof, belonging to the field of ship engineering.
Background
The water jet propulsion ship is different from a propeller propulsion ship, and has the advantages of simple transmission mechanism, small draught, low underwater noise, good maneuverability, good backing performance and the like. However, due to factors such as social development and improvement of living standards of people, the existing water jet propulsion pump device has many defects in research design in aspects of speed, efficiency, applicability and the like, the performance of the existing water jet propulsion pump device still needs to be further improved, and the existing water jet propulsion pump device cannot be completely adapted to working conditions such as starting, running free from grounding, instantaneous acceleration, high-speed sailing and the like of a ship. Through search, no pulse jet water jet propulsion pump device patent exists at present.
Disclosure of Invention
The invention aims to solve the existing problems and provides a pulse jet flow water spray propulsion pump device based on an electric valve at a nozzle and a using method thereof.
The invention aims to realize the technical scheme that a pulse jet flow water spray propulsion pump device based on an electric valve at a nozzle is characterized in that: the water jet propulsion pump comprises a motor and a water jet propulsion pump body, wherein one end of the water jet propulsion pump body is provided with a water inlet, the other end of the water jet propulsion pump body is provided with a nozzle, and a nozzle extending pipeline is arranged on the nozzle;
the water inlet, the water jet propulsion pump body, the nozzle and the nozzle extension pipeline are sequentially communicated; the power output shaft of the motor extends into the water jet propulsion pump body, an impeller is fixed at one end of the power output shaft of the motor, which is arranged in the water jet propulsion pump body, the impeller is positioned in the water jet propulsion pump body, the front end of the impeller is provided with a plurality of guide blades and an outlet water guide cone, and the outlet water guide cone is positioned at the center of the front end of the impeller;
the electric valve is installed at the nozzle, the electric valve is connected with an externally arranged pulse generator, and the pulse generator is connected with the control terminal, so that a control loop is formed.
The electric valve is controlled by an external pulse generator, and the opening and closing of the electric valve and the opening degree are controlled by a pulse signal generated by the pulse generator, so that the energized water body flows through the outlet water guide cone due to the high-speed rotation of the impeller, and a pulse jet flow is formed in the nozzle extension pipeline.
The control terminal is programmable, and the pulse generator can be automatically or manually controlled by a program through the control terminal, so that the pulse generator can send different pulse signals to control the jet nozzle to extend the pulse jet flow formed in the pipeline, the water jet propulsion efficiency is improved, and the ship propulsion system is suitable for various working conditions of ships.
A method for using a pulse jet flow water jet propulsion pump device based on an electric valve at a nozzle is characterized by comprising the following steps:
starting a motor, wherein a power output shaft of the motor rotates to drive a impeller to rotate, water flows in from a water inlet, sequentially passes through the water inlet and a water spray propulsion pump body, and is finally sprayed out from a nozzle and a nozzle extension pipeline;
meanwhile, the control terminal controls the pulse generator to enable the pulse generator to send a continuous electric signal to control the opening of the electric valve, so that the area of the nozzle is reduced, and the jet speed in the nozzle extension pipeline is increased.
The method is advanced and scientific, and the whole device mainly comprises a single-nozzle water-jet propulsion pump device, an electric valve, a pulse generator and a control terminal. The single-nozzle water jet propulsion pump device comprises a motor and a water jet propulsion pump body, wherein a water inlet is formed in one end of the water jet propulsion pump body, a nozzle and a nozzle extension pipeline are formed in the other end of the water jet propulsion pump body, the water inlet, the water jet propulsion pump body and the nozzle are sequentially communicated, a power output shaft of the motor extends into the water jet propulsion pump body, and an impeller is fixed at one end, arranged in the water jet propulsion pump body, of the power output shaft of the motor. When the motor is started, the power output shaft of the motor rotates to drive the impeller to rotate, and water flows in from the water inlet, sequentially passes through the water inlet and the water spray propulsion pump body and is finally sprayed out from the nozzle. The electric valve is arranged at the nozzle, the electric valve is connected with an externally arranged pulse generator, and the pulse generator is connected with the control terminal, so that a control loop is formed.
The electric valve is additionally arranged at the nozzle of the single-nozzle water jet propulsion pump, the electric valve is controlled by an external pulse generator, and the opening and closing of the electric valve are controlled by a pulse signal generated by the pulse generator, so that pulse jet flow is formed in the nozzle extension pipeline.
The pulse generator is connected with the control terminal, and the control terminal automatically or manually controls the pulse generator by a program, so that the pulse generator can send different pulse signals to control the pulse jet formed in the nozzle extension pipeline, and the pulse jet control device is suitable for various working conditions of ships.
When the water jet propulsion ship is in a high-speed cruising working condition, the control terminal can automatically or manually control the pulse generator by a program, so that the pulse generator sends a continuous electric signal to control the opening of the electric valve, the area of the nozzle is indirectly reduced, the jet speed formed in the nozzle extension pipeline is increased, and the cruising host is more suitable for high-speed operation.
The beneficial results of the invention are: according to the pulse jet flow water jet propulsion pump device based on the electric valve at the nozzle, pulse jet flow is formed at the nozzle, the short-time thrust of the original pump device is increased, and the water jet propulsion efficiency can be obviously improved, so that the maneuverability of a water jet propulsion ship is improved, and the water jet propulsion ship is more suitable for working conditions of starting, running off with a shallow angle, instantaneous acceleration, high-speed sailing and the like.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: the device comprises an electric valve 1, a pulse generator 2, a control terminal 3, a nozzle 4, an outlet water guide cone 5, a nozzle extension pipeline 6, an impeller 7, a motor 8 and guide vanes 9.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and detailed description, but the scope of the present invention is not limited thereto.
In fig. 1, it can be seen that a pulse jet propulsion pump device based on an electric valve at a jet nozzle comprises a pulse jet propulsion pump device installed on a single-jet propulsion pump device, wherein the single-jet propulsion pump device comprises a motor 8 and a jet propulsion pump body, one end of the jet propulsion pump body is provided with a water inlet, the other end is provided with a jet nozzle 4 and a jet nozzle extension pipeline 6, the water inlet, the jet propulsion pump body, the jet nozzle 4 and the jet nozzle extension pipeline 6 are sequentially communicated, a power output shaft of the motor 8 extends into the jet propulsion pump body, and one end of the power output shaft of the motor 8, which is arranged in the jet propulsion pump body, is fixed with an impeller 7; an impeller 7 is arranged in the pump body of the water jet propulsion pump, and the front end of the impeller 7 is provided with a plurality of guide vanes 9 and an outlet water guide cone 5; when the motor is started, the power output shaft of the motor rotates to drive the impeller 7 to rotate, and water flows in from the water inlet, sequentially passes through the water inlet and the water spray propulsion pump body and is finally sprayed out from the nozzle. An electric valve 1 is installed at the nozzle 4, the electric valve 1 is connected with an externally arranged pulse generator 2, and the pulse generator 2 is connected with a control terminal 3, so that a control loop is formed.
In the propulsion system, an electric valve 1 is arranged at a nozzle 4 of a propulsion pump, the electric valve 1 is controlled by an external pulse generator 2, and the opening and closing of the electric valve 1 are controlled by a pulse signal generated by the pulse generator 2, so that energized water flows through an outlet water guide cone 5 due to the high-speed rotation of an impeller 7, and pulse jet flow is formed in a nozzle extension pipeline 6.
When the water jet propulsion ship provided with the pulse jet water jet propulsion pump device is in a high-speed cruising working condition, the control terminal 3 can automatically or manually control the pulse generator 2 by a program to enable the pulse generator 2 to send a continuous electric signal to control the opening degree of the electric valve 1, thereby indirectly reducing the area of the nozzle 4, increasing the jet speed in the nozzle extension pipeline 6 and enabling the cruising host to be more suitable for high-speed operation.
The working principle of the invention is that the ideal thrust T does not consider the loss at each positioniShould be equal to the increment of the momentum of the water body flowing through the propulsion pump in unit time Ti＝ρQ(Vi-V0). In the formula:
Tiideal thrust (N);
ρ is the density of the fluid, which in this formula refers to the density of water (kg/m)3)；
Q is the flow (m) at the nozzle3/s)；
ViThe speed (m/s) of the water body flowing through the nozzle after being accelerated by the propulsion pump;
V0the water body velocity (m/s) is not accelerated by the propulsion pump.
The device can form pulse jet flow at the nozzle, and the pulse jet flow has higher instantaneous energy, so the short-time thrust of the water jet propulsion pump device can be increased, and the maneuverability of the water jet propulsion ship is improved. Meanwhile, the electric valve enables the flow rate of the nozzle to be controllable, the electric valve can better adapt to the working condition of high-speed sailing of the ship, and the high performance of the whole device is reflected.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a pulse jet water spray propulsion pump device based on spout department motorised valve which characterized by: the water jet propulsion pump comprises a motor (8) and a water jet propulsion pump body, wherein one end of the water jet propulsion pump body is provided with a water inlet, the other end of the water jet propulsion pump body is provided with a nozzle (4), and a nozzle extending pipeline (6) is arranged on the nozzle (4);
the water inlet, the water jet propulsion pump body, the nozzle (4) and the nozzle extension pipeline (6) are communicated in sequence; the power output shaft of the motor (8) extends into the water jet propulsion pump body, an impeller (7) is fixed at one end of the power output shaft of the motor (8) which is arranged in the water jet propulsion pump body, the impeller (7) is positioned in the water jet propulsion pump body, a plurality of guide blades (9) and an outlet water guide cone (5) are arranged at the front end of the impeller (7), and the outlet water guide cone (5) is positioned at the center of the front end of the impeller (7);
an electric valve (1) is installed at the nozzle (4), the electric valve (1) is connected with an externally arranged pulse generator (2), and the pulse generator (2) is connected with a control terminal (3) so as to form a control loop.
2. The pulsating jet water jet propulsion pump device based on the electric valve at the nozzle opening as claimed in claim 1, wherein: the electric valve (1) is controlled by an external pulse generator (2), and the opening and closing and the opening of the electric valve (1) are controlled by a pulse signal generated by the pulse generator (2), so that a water body energized by the high-speed rotation of the impeller (7) flows through the outlet water guide cone (5) to form a pulse jet in the nozzle extension pipeline (6).
3. The pulsating jet water jet propulsion pump device based on the electric valve at the nozzle opening as claimed in claim 1, wherein: the control terminal (3) is programmable, the pulse generator (2) can be automatically or manually controlled by a program through the control terminal (3), so that the pulse generator (2) sends different pulse signals to control pulse jet flow formed in the nozzle extension pipeline (6), the water spraying propulsion efficiency is improved, and the ship water spraying propulsion system is suitable for various working conditions of ships.
4. The use method of the pulse jet water jet propulsion pump device based on the electric valve at the nozzle opening as claimed in any one of claims 1-3 is characterized in that:
starting a motor (8), wherein a power output shaft of the motor rotates to drive a impeller (7) to rotate, water flows in from a water inlet, sequentially passes through the water inlet and a water spray propulsion pump body, and is finally sprayed out from a nozzle (4) and a nozzle extension pipeline (6);
meanwhile, the control terminal (3) controls the pulse generator (2) to enable the pulse generator (2) to send out a continuous electric signal to control the opening of the electric valve (1), the area of the nozzle (4) is reduced, and the jet velocity in the nozzle extension pipeline (6) is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011299932.2A CN112407216A (en) | 2020-11-19 | 2020-11-19 | Pulse jet flow water spray propulsion pump device based on electric valve at nozzle and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011299932.2A CN112407216A (en) | 2020-11-19 | 2020-11-19 | Pulse jet flow water spray propulsion pump device based on electric valve at nozzle and using method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112407216A true CN112407216A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011299932.2A Pending CN112407216A (en) | 2020-11-19 | 2020-11-19 | Pulse jet flow water spray propulsion pump device based on electric valve at nozzle and using method thereof |
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| CN (1) | CN112407216A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115675808A (en) * | 2022-10-26 | 2023-02-03 | 上海理工大学 | Self-circulation jet flow stability expansion control system and method for water-jet propeller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1803531A (en) * | 2005-12-28 | 2006-07-19 | 黄鲁生 | Continuous injection method and apparatus of water-sprinkling engine by utilizing influent water and high-pressure gas energy |
| US20060281375A1 (en) * | 2005-06-10 | 2006-12-14 | Jordan Jeff P | Variable marine jet propulsion |
| US20120252287A1 (en) * | 2011-04-01 | 2012-10-04 | Rolls-Royce Plc | Water jet propulsion device |
| WO2013089244A1 (en) * | 2011-12-16 | 2013-06-20 | 国立大学法人東京海洋大学 | Controller for ship propulsion device and ship propulsion system using same |
| CN106741783A (en) * | 2017-02-27 | 2017-05-31 | 中国科学院海洋研究所 | A kind of pulsed unidirectionally advances pump |
| CN109720525A (en) * | 2018-12-05 | 2019-05-07 | 燕山大学 | A kind of bionic fish tail propulsion device based on wave transmission hydraulics |
| CN111907675A (en) * | 2020-08-06 | 2020-11-10 | 扬州大学 | Short-time high-thrust water jet propulsion pump device externally connected with jet flow and using method thereof |
-
2020
- 2020-11-19 CN CN202011299932.2A patent/CN112407216A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060281375A1 (en) * | 2005-06-10 | 2006-12-14 | Jordan Jeff P | Variable marine jet propulsion |
| CN1803531A (en) * | 2005-12-28 | 2006-07-19 | 黄鲁生 | Continuous injection method and apparatus of water-sprinkling engine by utilizing influent water and high-pressure gas energy |
| US20120252287A1 (en) * | 2011-04-01 | 2012-10-04 | Rolls-Royce Plc | Water jet propulsion device |
| WO2013089244A1 (en) * | 2011-12-16 | 2013-06-20 | 国立大学法人東京海洋大学 | Controller for ship propulsion device and ship propulsion system using same |
| CN106741783A (en) * | 2017-02-27 | 2017-05-31 | 中国科学院海洋研究所 | A kind of pulsed unidirectionally advances pump |
| CN109720525A (en) * | 2018-12-05 | 2019-05-07 | 燕山大学 | A kind of bionic fish tail propulsion device based on wave transmission hydraulics |
| CN111907675A (en) * | 2020-08-06 | 2020-11-10 | 扬州大学 | Short-time high-thrust water jet propulsion pump device externally connected with jet flow and using method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115675808A (en) * | 2022-10-26 | 2023-02-03 | 上海理工大学 | Self-circulation jet flow stability expansion control system and method for water-jet propeller |
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Application publication date: 20210226 |