阅读说明：本技术 无兴波阻力船及船体制作和推进技术 (Wave-resistance-free ship and ship body manufacturing and propelling technology ) 是由 艾书元 于 2020-03-27 设计创作，主要内容包括：它是造船行业的一种新船体的设计制作方法,和泵推进新的设置方法。一、世界上凡是在水面上以高速航行的船,船头都有兴波产生,但是附图一的这条船,开的很快,船头没有波浪,船体后半部两侧的水花是由船体外的射流管的水流形成的。二、本船体有船头进水的头泵水流管道,由水泵不断快速把管道中的水抽出经喷管喷出转化为动力。而船头对水体没有顶、推、挤压等作用力。所以,船头无兴波阻力,再快的航速,只要功率能够满足,也没有兴波阻力。总之功率加大,航速也大,船头还是无兴波阻力。水泵选用高扬程离心泵。(It is a new ship body design and manufacture method and a new pump propelling setting method in the shipbuilding industry. In the ship shown in the drawing I, the ship is opened quickly, the bow has no waves, and water spray on two sides of the rear half part of the ship body is formed by water flow of a jet pipe outside the ship body. The ship body is provided with a head pump water flow pipeline for water inflow at the ship head, and water in the pipeline is continuously and quickly pumped out by a water pump and is sprayed out through a spray pipe to be converted into power. And the bow does not have acting force such as jacking, pushing, extruding and the like on the water body. Therefore, the bow has no wave-making resistance, and the fast sailing speed is not wave-making resistance as long as the power can be met. In a word, the power is increased, the navigation speed is also high, and the bow still has no wave-making resistance. The water pump is a high-lift centrifugal pump.)

1. It is characterized in that; the ship body manufactured by the two methods and the propulsion effect are higher than the efficiency of the existing water surface drainage ship. The method eliminates wave-making resistance, shape resistance and attachment resistance of the ship and only has friction resistance. Therefore, the ship has fast speed. As long as the ship body and the length of the ship are lengthened, the power and the navigation speed can be increased. And the ship is fast, and the bow does not have the resistance of rising wave and the shape resistance of ship that increases gradually yet.

2. The water inlet pipeline is arranged at the bottom of the ship to form the bow water inlet so as to achieve the wave making elimination effect. And the method changes based on the wave resistance elimination, which belongs to the protection scope.

3. The boat body is in a shape of a pen or a straight line. The left side and the right side of the ship are provided with buoyancy tanks above waterlines, and the size is determined according to requirements.

4. The pump jet spray pipes are arranged below the floating boxes on the two sides of the ship, and the positions of the pump jet spray pipes can be on the water surface or below the water surface, and are determined according to requirements.

5. Jet propulsion method behind three directions [ left rear, right rear, stern ]. The left and right sides are mainly pushed backwards, and the tail is pushed backwards.

6. The ship body does not have a propeller and can lay a foundation for the multi-hulled ship. Are also within the present claims.

7. The water flow of the water pump enters from the bow of the ship and is discharged from the jet flow on the two sides of the ship, and the phase-change improved technical method based on the above is a protection example.

The technical field is as follows:

the method is a method for manufacturing a hull of a ship which sails on the water surface very fast and a method for designing and manufacturing a three-surface backward propulsion method matched with the ship. Fig. 1, it is mainly for eradicating the wave making resistance of the ship's head, also solve the wave making resistance increase progressively after the power is increased, make the ship speed still not go. The existing ship is propelled by the stern, and the excitation phenomenon is more and more serious along with the increase of the power of an engine. At present, a stern water spraying ship solves the problem of slow ship speed by using a large discharge pump, but does not solve the problem of wave-forming resistance formation, and further solves the problem of wave-forming increasing. The existing ship is formed by wave breaking at the bow and backflow water at the stern: the stern is like the buttock of duck, causes shape resistance of ship. The faster the speed, the greater the adsorption resistance behind the hull.

The propulsion of the ship is mostly that the stern pushes water backwards. The ship body is propelled backwards from two sides and the stern simultaneously by jet flow, so that the problem that the ship is unbalanced forwards and backwards due to excitation caused by overlarge power of a single engine and overweight of the single engine is solved.

The hull shape of my design is like the pencil, and the line is all horizontal straight line from bow to stern, can not produce shape resistance map 5. The bottom of the ship body is a double-layer figure 9, and the lowest layer is a U-shaped groove steel plate which is connected with two sides of the ship body by fastening screws. The U-shaped groove can be disassembled and assembled, and is convenient to maintain and remove rust. The middle of the double-layer bottom is provided with a water source pipeline (one end of the stern is sealed) for pushing a water pump, water enters the pipeline from the bow at the speed of navigation and then is sprayed out from a jet pipe in a water pump nozzle figure 2. Fig. 1.

Secondly, the background technology:

in the world, in the case of a water-discharging ship which sails on the water surface at a high speed, as shown in fig. 13, the power of an engine is required to be greatly increased with the further increase of the sailing speed, so that the problem of safe sailing of a single ship is caused. Figure 13 is a ship in an unmanned fleet of america with boats on both sides of the host vessel as fulcrums to prevent misdetection for safety. The ship body designed by the inventor fundamentally eliminates wave-making resistance and shape resistance of the ship body. The ship hardly generates resistance caused by jacking, squeezing and pressing on the water body around the ship body except for the friction force formed by the outer surface of the ship body and water. The water flowing into the pipeline from the bow is pumped by the water pump in time to be changed into thrust. So that wave-making resistance can not be generated at the bow of the ship.

The water source pipeline of the water pump is arranged at the bottom of the ship body and is from one outing in primary school of our country:

at that time, the net of the butterfly catching device falls off from an annular iron wire with the diameter of about one meter, and only one bamboo pole and an iron wire ring on the head of the bamboo pole are arranged in the hand. I vertically extend a half of iron wire circular ring into water and move left and right, and leaves on the water surface do not move when passing through the ring. The resistance of the iron wire circular ring in water is small, and the iron wire circular ring can be quickly and horizontally scratched left and right.

At present, a half pipe of a thin-wall pipe is horizontally immersed in water and moves in a cluster direction on the water surface, waves are not formed in front of the pipe, and the displacement of floaters in the pipe is small [ the diameter of the pipe is large ]. The resistance of the tube is derived from the amount of area formed by the thinness of the tube wall. The resistance to movement of the tube is related to the area and the speed of movement.

A pipe port of the water pipe is sealed, water in the pipe is continuously pumped out and is sprayed backwards, the horizontal moving resistance of the pipe is small, and waves cannot be generated on the water inlet end surface of the pipe, namely the situation of the first drawing. From the first drawing, it can be seen that the front half of the ship hull does not have any wave, but the spray on both sides of the ship hull is not caused by the ship hull, but is formed by the water column sprayed by the spray pipes, and the water column has a distance of 3 cm from the ship hull and does not generate frictional resistance.

With respect to pump inferences, it comes from the phenomena seen during a training session in a visit to the fire department: at that time, after the water outlet main pipe on the fire fighting truck is connected, only one fire fighter at one end of the fire fighting spray gun holds the spray gun and points to the high altitude. The fire fighting pipe connected with the spray gun is bent several meters and placed on the ground, when the high-pressure water flow of the fire fighting truck reaches the spray gun outlet through the fire fighting hose to be sprayed out, a fighter who grips the fire fighting spray gun is unstable at all and fast backs down! At this moment, another two fire fighters immediately go up to hold the fire fighter of the spray gun to hold the fire fighting pipe, so that the high-pressure water column can be stably sprayed to the high altitude of dozens of meters. Just when the training gets into the high tide, a fire hose joint of the water outlet main of connecting the fire engine has fallen, and the outlet pipe of connecting the fire engine at that time has a large amount of water to gush out, and the blast pipe of engine has fled black cigarette simultaneously to the fire engine, and engine speed obviously slows down. This shows that the load of the diesel engine driving the water pump suddenly increases, the rotating speed becomes slow, and the oil supply of the accelerator does not change, so that the incomplete combustion of the diesel oil is generated, and the phenomenon of black smoke emission of the exhaust pipe for several seconds is caused.

Under the above conditions, the centrifugal pump jet propulsion is selected. Because the reverse thrust of the spray gun of the first firefighter is large, the load of the diesel engine is small, and after the water pipe joint is detached, the reaction force of the fire fighting hose is small, and the load of the diesel engine is large. The nozzles used on both sides of the ship in fig. 2 have small diameter, large flow velocity and large thrust.

The now water jet propelled vessel on the water surface is shown in fig. 16: the pushboat has several places that differ from the method by which i make the propulsion.

1. The water source of the pump of the ship enters the water pump from the bow at the speed of the ship, and the bow does not have wave resistance; and it can be seen in fig. 16 that the pump is a stream derived from the rear half part of the ship body, and when the ship sails at high speed, the water in the water inlet pipe and the water below the ship bottom generate a flow speed difference, so that the water cannot enter easily, and the efficiency of the pump is reduced.

2. The pump for spraying water in fig. 16 is a two-stage axial flow water pump. This pump flow is big, but the lift is low, and the thrust that turns to of water spray is not like the fire control spray gun in first fireman's hand, and requires pump shaft power big.

3. Hull design in fig. 16: backflow water is generated below the tail part, and the attached body resistance of the ship is increased along with the acceleration of the speed.

The ship body designed by the inventor is straight and has no adsorption resistance caused by backflow water.

4. In FIG. 16, the area of the water spraying opening is large and the flow rate is large. The efficiency of obtaining big thrust is poor, and I design water jet of a matter is little, but the reverse thrust is efficient, is favorable to the selection of engine and the installation of address.

5. In FIG. 16, the diameter of the water inlet pipe of the pump is the same as that of the water outlet pipe, but is not proper. The pump designed by the inventor has the advantages of thick water inlet pipe, medium water outlet pipe and small diameter of the spray pipe. The reverse thrust is large.

Fig. 15 is a photo of the outlet of a pump ship in a large country showing that the power of the engine is very powerful, which can reduce the hydraulic pressure and flow rate of the nozzles |!

6. In order to arrive at the law enforcement site as soon as possible, the law enforcement ships are dispatched from the Shanghai Huangpu river on the Shanghai beach, the law enforcement ships are provided with engines which are to be arranged on tugboats, and due to the high navigation speed, ships which are parked at the edge of the river and the mountains of the office of the water floating boat shake and the people are unstable. The ship designed by the inventor does not have the rising waves at all. The boat in fig. 1 eliminates all the wave making at one time. It can be clearly seen from figure 1 that the ship is fast, but the water surface of the front half section of the ship body is like a mirror, the water surface reflection view is clear, and water spray on two sides of the rear half section of the ship body is caused by water outlet of the spray pipe.

When the ship is tested for the first time in 10 and 30 months in 2019, the water outlet of the spray pipe is placed under water, and no spray is left on the water surface at the rear half part of the ship body. The reflected scene is also seen. FIG. 3 shows the test results; the propulsion power-speed data in fig. 10 is much higher (2 times increase in engine power and about 1 time increase in speed).

The invention content is as follows:

1. the method for manufacturing the wave-resistance-free ship and the ship body and the method for manufacturing the jet propulsion design behind the ship in three directions (left back, right back and stern) thoroughly solve the problem that the wave-resistance increases progressively when the ship sails, and simultaneously, the pump propulsion technology is applied to two sides and the back of the ship by using a new propulsion scheme. The wave making resistance of the existing ship is the main resistance of the high-speed ship. The method for manufacturing the ship body without wave-making resistance eliminates the wave-making resistance and simultaneously eliminates the shape resistance and the adsorption resistance of the ship, and as can be seen in figures 3 and 10, the speed of the ship is improved by 1 time only by increasing the power to 4 times, 6 times and 8 times. The ship of the method for manufacturing the ship body without wave-making resistance and the three-direction back jet propulsion has the advantages that when the power of a water pump is increased by 2 times, the speed is almost increased by 1 time, and the most important is as follows: the bow never makes wave resistance. The ship body is lengthened, the engine and the water pump can be correspondingly increased, and the navigation speed can be fast.

2. The jet propulsion manufacturing method behind the three directions (left rear, right rear and stern) is beneficial to the maintenance of the ship, and the pump can be independently shut down no matter which engine or water pump has a fault, so that the ship sails as usual. When the destination is reached, the crane is used for adjusting the whole pump with the problem and replacing a spare pump to be connected. The maintenance time is short, and the dirty date is not affected.