CN111891324A - Novel water jet propulsion pump device structure and operation method thereof - Google Patents
Novel water jet propulsion pump device structure and operation method thereof Download PDFInfo
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- CN111891324A CN111891324A CN202010781107.XA CN202010781107A CN111891324A CN 111891324 A CN111891324 A CN 111891324A CN 202010781107 A CN202010781107 A CN 202010781107A CN 111891324 A CN111891324 A CN 111891324A
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- jet propulsion
- water jet
- propulsion pump
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- water
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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
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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
- B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/46—Steering or dynamic anchoring by jets or by rudders carrying jets
Abstract
The invention relates to a novel water jet propulsion pump device structure and an operation method thereof, and the novel water jet propulsion pump device structure comprises a water jet propulsion pump device arranged at the tail part of a naval vessel; the water jet propulsion pump device comprises a first water jet propulsion pump device, a second water jet propulsion pump device and a third water jet propulsion pump device, wherein the second water jet propulsion pump device is arranged between the first water jet propulsion pump device and the third water jet propulsion pump device. The first water jet propulsion pump device and the third water jet propulsion pump device are reverse double-nozzle water jet propulsion pump devices, and the second water jet propulsion pump device is a single-nozzle water jet propulsion pump device. According to the invention, the structural mode of the traditional water jet propulsion pump device is changed, the flow sprayed out from each nozzle is changed by opening and closing the valve and adjusting the rotating speed of the motor, and the thrusts with different sizes and directions are obtained, so that the desired thrust direction is synthesized to realize forward sailing acceleration, backward sailing and steering of the naval vessel.
Description
Technical Field
The invention relates to a novel water jet propulsion pump device structure and an operation method thereof, and belongs to the field of ship engineering.
Background
The existing water jet propulsion ship almost realizes the reversing and turning of the ship body by utilizing a steering reversing device of a water jet propulsion pump device, the quality of the reversing device is generally heavy, so that the displacement of the ship body is greatly increased, and meanwhile, the thrust which can be provided by one water jet propulsion pump device is limited, which is unfavorable for the forward sailing, the backward sailing and the turning of a large-scale naval ship.
Disclosure of Invention
The present invention is directed to solving the above-mentioned problems and to providing a novel water jet propulsion pump device structure and a method for operating the same.
The invention aims to realize the structure, and the novel water jet propulsion pump device comprises a water jet propulsion pump device arranged at the tail part of a naval vessel; the water jet propulsion pump device is characterized by comprising a first water jet propulsion pump device, a second water jet propulsion pump device and a third water jet propulsion pump device, wherein the second water jet propulsion pump device is arranged between the first water jet propulsion pump device and the third water jet propulsion pump device;
the first water jet propulsion pump device comprises a first motor and a first water jet propulsion pump body, wherein a first water inlet pipe is arranged at one end of the first water jet propulsion pump body, a first water outlet pipe is arranged at the other end of the first water jet propulsion pump body, a first nozzle is arranged at the water outlet end on the first water outlet pipe, the first water inlet pipe, the first water jet propulsion pump body, the first water outlet pipe and the first nozzle are sequentially communicated, a power output shaft of the first motor extends into the first water jet propulsion pump body, a first impeller is fixed at one end, arranged in the first water jet propulsion pump body, of the power output shaft of the first motor, and a plurality of first guide vanes are arranged on the first impeller; the first water outlet pipe is provided with a first valve and a first spray pipe, the first spray pipe is communicated with the first water outlet pipe, the communicated part of the first spray pipe and the first water outlet pipe is positioned on the first water outlet pipe between the first valve and the pump body of the first water jet propulsion pump, one end of the first spray pipe is communicated with the first water outlet pipe, the other end of the first spray pipe is provided with an opening, the opening direction and the outlet direction of the first water outlet pipe form an included angle of 150 degrees, and the first spray pipe is provided with a second valve;
the second water jet propulsion pump device comprises a second motor and a second water jet propulsion pump body, wherein a second water inlet pipe is arranged at one end of the second water jet propulsion pump body, a second water outlet pipe is arranged at the other end of the second water jet propulsion pump body, a second nozzle is arranged at the water outlet end on the second water outlet pipe, the second water inlet pipe, the second water jet propulsion pump body, the second water outlet pipe and the second nozzle are sequentially communicated, a power output shaft of the second motor extends into the second water jet propulsion pump body, a second impeller is fixed at one end, arranged in the second water jet propulsion pump body, of the power output shaft of the second motor, and a plurality of second guide vanes are arranged on the second impeller;
the third water jet propulsion pump device comprises a third motor and a third water jet propulsion pump body, a third water inlet pipe is arranged at one end of the third water jet propulsion pump body, a third water outlet pipe is arranged at the other end of the third water jet propulsion pump body, a third nozzle is arranged at the water outlet end on the third water outlet pipe, the third water inlet pipe, the third water jet propulsion pump body, the third water outlet pipe and the third nozzle are sequentially communicated, a power output shaft of the third motor extends into the third water jet propulsion pump body, a third impeller is fixed at one end, arranged in the third water jet propulsion pump body, of the power output shaft of the third motor, and a plurality of third guide vanes are arranged on the third impeller; and a third valve and a second spray pipe are arranged on the third water outlet pipe, the second spray pipe is communicated with the third water outlet pipe, the communicated part of the second spray pipe and the third water outlet pipe is positioned on the third water outlet pipe between the third valve and the third water jet propulsion pump body, one end of the second spray pipe is communicated with the third water outlet pipe, the other end of the second spray pipe is opened, the opening direction and the outlet direction of the third water outlet pipe form an included angle of 150 degrees, and a fourth valve is arranged on the second spray pipe.
The first water jet propulsion pump device and the third water jet propulsion pump device are arranged at an angle of 30 degrees with the central shaft of the naval vessel.
The first water jet propulsion pump device and the third water jet propulsion pump device are reverse double-nozzle water jet propulsion pump devices, and the second water jet propulsion pump device is a single-nozzle water jet propulsion pump device.
The radial direction of the second nozzle is along the direction of the second water jet propulsion pump device, and the radial directions of the first spray pipe and the second spray pipe are along the axis direction of the ship body.
A novel water jet propulsion pump device structure operation method is characterized in that during forward navigation, a second valve and a fourth valve are closed, a first valve and a third valve are opened, a first motor and a third motor are started, the rotating speeds of the first motor and the third motor are the same, a power output shaft of the first motor rotates to drive a first impeller and a first guide vane to rotate, and a power output shaft of the third motor rotates to drive a third impeller and a third guide vane to rotate; at the moment, water continuously flows in from a first water inlet pipe of the first water jet propulsion pump device and is sequentially sprayed out through the first water jet propulsion pump body, the first water outlet pipe and the first nozzle, and water continuously flows in from a third water inlet pipe of the third water jet propulsion pump device and is sequentially sprayed out through the third water jet propulsion pump body, the third water outlet pipe and the third nozzle, so that the naval vessel forward sailing is realized;
when the naval vessel is sailing, the second motor can be started, the power output shaft of the second motor rotates to drive the second impeller and the second guide vane to rotate, and water continuously flows into the second water inlet pipe of the second water jet propulsion pump device and is sequentially sprayed out through the second water jet propulsion pump body, the second water outlet pipe and the second nozzle;
when the ship is sailed backwards, only the second valve and the fourth valve are opened, the first valve and the third valve are closed, and meanwhile, the second motor of the second water jet propulsion pump device is also closed; starting a first motor and a third motor, wherein the rotating speeds of the first motor and the third motor are the same, a power output shaft of the first motor rotates to drive a first impeller and a first guide vane to rotate, and a power output shaft of the third motor rotates to drive a third impeller and a third guide vane to rotate; at the moment, water continuously flows in from a first water inlet pipe of the first water jet propulsion pump device and is sequentially sprayed out through the first water jet propulsion pump body, the first water outlet pipe and the first spray pipe, and water continuously flows in from a third water inlet pipe of the third water jet propulsion pump device and is sequentially sprayed out through the third water jet propulsion pump body, the third water outlet pipe and the second spray pipe, so that the ship sailing is realized;
when the vehicle turns left, the second valve and the fourth valve are closed, the second motor is closed at the same time, the first valve and the third valve are opened, the first motor and the third motor are adjusted, the rotating speed of the first motor is low, the rotating speed of the third motor is high, and therefore left turning can be achieved;
when the automobile turns to the right, the second valve and the fourth valve are closed, the second motor is closed simultaneously, the first valve and the third valve are opened, the first motor and the third motor are adjusted, the rotating speed of the first motor is large, the rotating speed of the third motor is small, and then the right turning can be achieved.
The invention has reasonable structure and advanced and scientific method, and the technical problems to be solved by the invention are as follows: 1 how to realize the reversing and turning of the ship body under the condition of not installing a reversing device. 2 how to design a water jet propulsion pump device with reasonable layout aiming at a large-scale naval vessel, increase the thrust and realize the high-speed navigation of the naval vessel. The core purpose of the invention is to design a novel water jet propulsion pump device structure and an operation method aiming at the problems.
The water jet propulsion pump device comprises a water jet propulsion pump device arranged at the tail of a naval vessel, wherein the water jet propulsion pump device comprises a first water jet propulsion pump device, a second water jet propulsion pump device and a third water jet propulsion pump device; the second water jet propulsion pump device positioned in the middle of the tail of the naval vessel adopts a single-nozzle water jet propulsion pump device, the first water jet propulsion pump device and the third water jet propulsion pump device positioned on two sides of the tail of the naval vessel adopt reverse double-nozzle water jet propulsion pump devices, and the first water jet propulsion pump device and the third water jet propulsion pump device on two sides are arranged at an angle of 30 degrees with the central shaft of the naval vessel.
The radial direction of a second nozzle of the second water jet propulsion pump device is along the pump shaft direction, and the radial directions of a first nozzle and a third nozzle of the first water jet propulsion pump device and the third water jet propulsion pump device are forward along the axis direction of the ship body. The first valve, the second valve, the third valve and the fourth valve adopt ball valves, the upper valves of the left and right reverse double nozzles are used for controlling the opening and closing of the nozzles, the respective motor rotating speeds of the left and right sides are adjusted to realize the jet flow of each nozzle, and therefore the naval acceleration, the rapid backing and the turning of the naval vessel are realized according to the difference of the thrust sizes and the directions of the two sides.
When the ship is in normal navigation, the second valve and the fourth valve are closed, the first valve and the third valve are opened, and meanwhile, the rotating speeds of the first motor and the third motor of the water jet propulsion pump devices on the left side and the right side are ensured to be the same so as to ensure that the thrust provided by the left device and the right device of the ship body is equal in magnitude and symmetrical in direction along the axis of the ship, and the direction of the resultant thrust is along the running direction of the ship.
When the ship is reversed, the first valve and the third valve are closed, the second motor is closed at the same time, the second valve and the fourth valve are opened, and the rotating speeds of the first motor and the third motor of the water jet propulsion pump devices on the left side and the right side are also required to be the same so as to ensure that the direction of the ship is not deviated from the route. When the automobile turns left, the second valve and the fourth valve are closed, the second motor is closed simultaneously, the first valve and the third valve are opened, the first motor and the third motor are adjusted, the rotating speed of the first motor is small, the rotating speed of the third motor is large, and steering in different degrees can be achieved. The opposite is true for a right turn.
Has the advantages that:
according to the invention, the structural mode of the traditional water jet propulsion pump device is changed, the flow sprayed out from each nozzle is changed by opening and closing the valve and adjusting the rotating speed of the motor, and the thrusts with different sizes and directions are obtained, so that the desired thrust direction is synthesized to realize forward sailing acceleration, backward sailing and steering of the naval vessel.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a first water jet propulsion pump device, a second water jet propulsion pump device and a third water jet propulsion pump device according to the present invention.
In the figure: the water spray device comprises a first valve 1, a second valve 2, a third valve 3, a fourth valve 4, a first motor 5, a second motor 6, a third motor 7, a first water outlet pipe 8-1, a second water outlet pipe 8-2, a third water outlet pipe 8-3, a first spray pipe 9-1 and a second spray pipe 9-2.
Detailed Description
The invention is further described with reference to the accompanying drawings and the description thereof.
A novel water jet propulsion pump device structure comprises a water jet propulsion pump device arranged at the tail of a naval vessel; the water jet propulsion pump device comprises a first water jet propulsion pump device, a second water jet propulsion pump device and a third water jet propulsion pump device, wherein the second water jet propulsion pump device is arranged between the first water jet propulsion pump device and the third water jet propulsion pump device.
The first water jet propulsion pump device comprises a first motor 5 and a first water jet propulsion pump body, wherein a first water inlet pipe is arranged at one end of the first water jet propulsion pump body, a first water outlet pipe 8-1 is arranged at the other end of the first water jet propulsion pump body, a first nozzle is arranged at the water outlet end of the first water outlet pipe 8-1, the first water inlet pipe, the first water jet propulsion pump body, the first water outlet pipe 8-1 and the first nozzle are sequentially communicated, a power output shaft of the first motor 5 extends into the first water jet propulsion pump body, a first impeller is fixed at one end, arranged in the first water jet propulsion pump body, of the power output shaft of the first motor 5, and a plurality of first guide vanes are arranged on the first impeller; the first water outlet pipe 8-1 is provided with a first valve 1 and a first spray pipe 9-1, the first spray pipe 9-1 is communicated with the first water outlet pipe 8-1, the communicated part of the first spray pipe 9-1 and the first water outlet pipe 8-1 is positioned on the first water outlet pipe 8-1 between the first valve 1 and the first water jet propulsion pump body, one end of the first spray pipe 9-1 is communicated with the first water outlet pipe 8-1, the other end of the first spray pipe is provided with an opening, the opening direction and the outlet direction of the first water outlet pipe 8-1 form an included angle of 150 degrees, and the first spray pipe 9-1 is provided with a second valve 2.
The second water jet propulsion pump device comprises a second motor 6 and a second water jet propulsion pump body, wherein a second water inlet pipe is arranged at one end of the second water jet propulsion pump body, a second water outlet pipe 8-2 is arranged at the other end of the second water jet propulsion pump body, a second nozzle is arranged at the water outlet end of the second water outlet pipe 8-2, the second water inlet pipe, the second water jet propulsion pump body, the second water outlet pipe 8-2 and the second nozzle are sequentially communicated, a power output shaft of the second motor 6 extends into the second water jet propulsion pump body, a second impeller is fixed at one end, arranged in the second water jet propulsion pump body, of the power output shaft of the second motor 6, and a plurality of second guide vanes are arranged on the second impeller.
The third water jet propulsion pump device comprises a third motor 7 and a third water jet propulsion pump body, wherein one end of the third water jet propulsion pump body is provided with a third water inlet pipe, the other end of the third water jet propulsion pump body is provided with a third water outlet pipe 8-3, the water outlet end on the third water outlet pipe 8-3 is provided with a third nozzle, the third water inlet pipe, the third water jet propulsion pump body, the third water outlet pipe 8-3 and the third nozzle are sequentially communicated, a power output shaft of the third motor 7 extends into the third water jet propulsion pump body, a third impeller is fixed at one end, arranged in the third water jet propulsion pump body, of the power output shaft of the third motor 7, and a plurality of third guide vanes are arranged on the third impeller; and a third valve 3 and a second spray pipe 9-2 are arranged on the third water outlet pipe (8-3), the second spray pipe 9-2 is communicated with the third water outlet pipe 8-3, the communicated part of the second spray pipe 9-2 and the third water outlet pipe 8-3 is positioned on the third water outlet pipe 8-3 between the third valve 3 and the third water jet propulsion pump body, one end of the second spray pipe 9-2 is communicated with the third water outlet pipe 8-3, the other end of the second spray pipe is opened, the opening direction and the outlet direction of the third water outlet pipe 8-2 form an included angle of 150 degrees, and a fourth valve 4 is arranged on the second spray pipe 9-2.
Furthermore, the first water jet propulsion pump device and the third water jet propulsion pump device are arranged at an angle of 30 degrees with the central shaft of the naval vessel. The first water jet propulsion pump device and the third water jet propulsion pump device are reverse double-nozzle water jet propulsion pump devices, and the second water jet propulsion pump device is a single-nozzle water jet propulsion pump device. The radial direction of the second nozzle is along the direction of the second water jet propulsion pump device, and the radial directions of the first spray pipe 9-1 and the second spray pipe 9-2 are along the axis direction of the ship body.
A novel water jet propulsion pump device structure operation method comprises the steps that when the novel water jet propulsion pump device is in a forward navigation state, a second valve 2 and a fourth valve 4 are closed, a first valve 1 and a third valve 3 are opened, a first motor 5 and a third motor 7 are started, the rotating speeds of the first motor 5 and the third motor 7 are the same, a power output shaft of the first motor 5 rotates to drive a first impeller and a first guide vane to rotate, and a power output shaft of the third motor 7 rotates to drive a third impeller and a third guide vane to rotate; at the moment, water continuously flows in from a first water inlet pipe of the first water jet propulsion pump device and is sequentially sprayed out through the first water jet propulsion pump body, the first water outlet pipe 8-1 and the first nozzle, and water continuously flows in from a third water inlet pipe of the third water jet propulsion pump device and is sequentially sprayed out through the third water jet propulsion pump body, the third water outlet pipe 8-1 and the third nozzle, so that naval vessel forward sailing is realized;
when the naval vessel is sailing, the second motor 6 can be started, the power output shaft of the second motor 6 rotates to drive the second impeller and the second guide vane to rotate, and water continuously flows into the second water inlet pipe of the second water jet propulsion pump device and is sequentially sprayed out through the second water jet propulsion pump body, the second water outlet pipe 8-2 and the second nozzle;
when the ship is sailed backwards, only the second valve 2 and the fourth valve 4 are opened, the first valve 1 and the third valve 3 are closed, and meanwhile, the second motor 6 of the second water jet propulsion pump device is also closed; starting the first motor 5 and the third motor 7, wherein the rotating speeds of the first motor 5 and the third motor 7 are the same, a power output shaft of the first motor 5 rotates to drive the first impeller and the first guide vane to rotate, and a power output shaft of the third motor 7 rotates to drive the third impeller and the third guide vane to rotate; at the moment, water continuously flows in from a first water inlet pipe of the first water jet propulsion pump device and is sequentially sprayed out through the first water jet propulsion pump body, the first water outlet pipe 8-1 and the first spray pipe 9-1, and water continuously flows in from a third water inlet pipe of the third water jet propulsion pump device and is sequentially sprayed out through the third water jet propulsion pump body, the third water outlet pipe 8-3 and the second spray pipe 9-2, so that the ship sailing is realized;
when the vehicle turns left, the second valve 2 and the fourth valve 4 are closed, the second motor 6 is closed at the same time, the first valve 1 and the third valve 3 are opened, the first motor 5 and the third motor 7 are adjusted, the rotating speed of the first motor 5 is small, the rotating speed of the third motor 7 is large, and therefore left-turning can be achieved;
when the automobile turns right, the second valve 2 and the fourth valve 4 are closed, the second motor 6 is closed at the same time, the first valve 1 and the third valve 3 are opened, the first motor 5 and the third motor 7 are adjusted, the rotating speed of the first motor 5 is high, the rotating speed of the third motor 7 is low, and the right-turning can be realized.
When the electric vehicle turns, the magnitude and the direction of the resultant thrust are controlled by opening and closing the first motor 5, the second valve 2, the third valve 3 and the fourth valve 4 and changing the rotating speed of the first motor 5, the second motor 6 and the third motor 7, so that the purpose of rotating speed is achieved.
Claims (5)
1. A novel water jet propulsion pump device structure comprises a water jet propulsion pump device arranged at the tail of a naval vessel; the water jet propulsion pump device is characterized by comprising a first water jet propulsion pump device, a second water jet propulsion pump device and a third water jet propulsion pump device, wherein the second water jet propulsion pump device is arranged between the first water jet propulsion pump device and the third water jet propulsion pump device;
the first water jet propulsion pump device comprises a first motor (5) and a first water jet propulsion pump body, wherein a first water inlet pipe is arranged at one end of the first water jet propulsion pump body, a first water outlet pipe (8-1) is arranged at the other end of the first water jet propulsion pump body, a first nozzle is arranged at the water outlet end of the first water outlet pipe (8-1), the first water inlet pipe, the first water jet propulsion pump body, the first water outlet pipe (8-1) and the first nozzle are sequentially communicated, a power output shaft of the first motor (5) extends into the first water jet propulsion pump body, a first impeller is fixed at one end, arranged in the first water jet propulsion pump body, of the power output shaft of the first motor (5), and a plurality of first guide vanes are arranged on the first impeller; a first valve (1) and a first spray pipe (9-1) are arranged on the first water outlet pipe (8-1), the first spray pipe (9-1) is communicated with the first water outlet pipe (8-1), the communicated part of the first spray pipe (9-1) and the first water outlet pipe (8-1) is positioned on the first water outlet pipe (8-1) between the first valve (1) and the first water jet propulsion pump body, one end of the first spray pipe (9-1) is communicated with the first water outlet pipe (8-1), the other end of the first spray pipe is opened, the opening direction and the outlet direction of the first water outlet pipe (8-1) form an included angle of 150 degrees, and a second valve (2) is arranged on the first spray pipe (9-1);
the second water jet propulsion pump device comprises a second motor (6) and a second water jet propulsion pump body, wherein one end of the second water jet propulsion pump body is provided with a second water inlet pipe, the other end of the second water jet propulsion pump body is provided with a second water outlet pipe (8-2), the water outlet end on the second water outlet pipe (8-2) is provided with a second nozzle, the second water inlet pipe, the second water jet propulsion pump body, the second water outlet pipe (8-2) and the second nozzle are sequentially communicated, a power output shaft of the second motor (6) extends into the second water jet propulsion pump body, a second impeller is fixed at one end, arranged in the second water jet propulsion pump body, of the power output shaft of the second motor (6), and a plurality of second guide vanes are arranged on the second impeller;
the third water jet propulsion pump device comprises a third motor (7) and a third water jet propulsion pump body, a third water inlet pipe is arranged at one end of the third water jet propulsion pump body, a third water outlet pipe (8-3) is arranged at the other end of the third water jet propulsion pump body, a third nozzle is arranged at the water outlet end of the third water outlet pipe (8-3), the third water inlet pipe, the third water jet propulsion pump body, the third water outlet pipe (8-3) and the third nozzle are sequentially communicated, a power output shaft of the third motor (7) extends into the third water jet propulsion pump body, a third impeller is fixed at one end, arranged in the third water jet propulsion pump body, of the power output shaft of the third motor (7), and a plurality of third guide vanes are arranged on the third impeller; the third water outlet pipe (8-3) is provided with a third valve (3) and a second spray pipe (9-2), the second spray pipe (9-2) is communicated with the third water outlet pipe (8-3), the communicated part of the second spray pipe (9-2) and the third water outlet pipe (8-3) is positioned on the third water outlet pipe (8-3) between the third valve (3) and the third water jet propulsion pump body, one end of the second spray pipe (9-2) is communicated with the third water outlet pipe (8-3), the other end of the second spray pipe is opened, the opening direction and the outlet direction of the third water outlet pipe (8-3) form an included angle of 150 degrees, and the second spray pipe (9-2) is provided with a fourth valve (4).
2. The novel water jet propulsion pump device structure as claimed in claim 1, wherein the first water jet propulsion pump device and the third water jet propulsion pump device are arranged at an angle of 30 degrees with respect to a central axis of a vessel.
3. The novel water jet propulsion pump device structure as claimed in claim 1, wherein the first water jet propulsion pump device and the third water jet propulsion pump device are reverse double-nozzle water jet propulsion pump devices, and the second water jet propulsion pump device is a single-nozzle water jet propulsion pump device.
4. A new type of water jet propulsion pump unit structure according to claim 1, characterized in that the radial direction of the second nozzle is along the direction of the second water jet propulsion pump unit, and the radial direction of the first nozzle pipe (9-1) and the second nozzle pipe (9-2) is along the axis of the ship body.
5. The operation method of the novel water jet propulsion pump device structure is characterized in that when the device is in normal navigation, the second valve (2) and the fourth valve (4) are closed, the first valve (1) and the third valve (3) are opened, the first motor (5) and the third motor (7) are started, the rotating speeds of the first motor (5) and the third motor (7) are the same, the power output shaft of the first motor (5) rotates to drive the first impeller and the first guide vane to rotate, and the power output shaft of the third motor (7) rotates to drive the third impeller and the third guide vane to rotate; at the moment, water continuously flows in from a first water inlet pipe of the first water jet propulsion pump device and is sequentially sprayed out through the first water jet propulsion pump body, the first water outlet pipe (8-1) and the first nozzle, and water continuously flows in from a third water inlet pipe of the third water jet propulsion pump device and is sequentially sprayed out through the third water jet propulsion pump body, the third water outlet pipe (8-1) and the third nozzle, so that the forward navigation of the naval vessel is realized;
when the naval vessel is sailing, the second motor (6) can be started, the power output shaft of the second motor (6) rotates to drive the second impeller and the second guide vane to rotate, and water continuously flows into the second water inlet pipe of the second water jet propulsion pump device and is sequentially sprayed out through the second water jet propulsion pump body, the second water outlet pipe (8-2) and the second nozzle;
when the ship is sailed backwards, only the second valve (2) and the fourth valve (4) are opened, the first valve (1) and the third valve (3) are closed, and meanwhile, the second motor (6) of the second water jet propulsion pump device is also closed; starting a first motor (5) and a third motor (7), wherein the rotating speeds of the first motor (5) and the third motor (7) are the same, a power output shaft of the first motor (5) rotates to drive a first impeller and a first guide vane to rotate, and a power output shaft of the third motor (7) rotates to drive a third impeller and a third guide vane to rotate; at the moment, water continuously flows in from a first water inlet pipe of the first water jet propulsion pump device and is sequentially sprayed out through a first water jet propulsion pump body, a first water outlet pipe (8-1) and a first spray pipe (9-1), water continuously flows in from a third water inlet pipe of a third water jet propulsion pump device and is sequentially sprayed out through a third water jet propulsion pump body, a third water outlet pipe (8-3) and a second spray pipe (9-2), and the ship sailing is achieved;
when the automobile turns left, the second valve (2) and the fourth valve (4) are closed, the second motor (6) is closed at the same time, the first valve (1) and the third valve (3) are opened, the first motor (5) and the third motor (7) are adjusted, the rotating speed of the first motor (5) is small, the rotating speed of the third motor (7) is large, and therefore left-turning can be achieved;
when turning to the right, close second valve (2) and fourth valve (4), close second motor (6) simultaneously, open first valve (1) and third valve (3), adjust first motor (5), third motor (7), the rotational speed of first motor (5) is big, and the rotational speed of third motor (7) is little, can realize turning to the right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010781107.XA CN111891324A (en) | 2020-08-06 | 2020-08-06 | Novel water jet propulsion pump device structure and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010781107.XA CN111891324A (en) | 2020-08-06 | 2020-08-06 | Novel water jet propulsion pump device structure and operation method thereof |
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| CN111891324A true CN111891324A (en) | 2020-11-06 |
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| CN (1) | CN111891324A (en) |
Citations (10)
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Application publication date: 20201106 |