JPS60166800A - Thrust force generating device - Google Patents

Abstract

PURPOSE:To provide a pump or thrust force generating device with high operating efficiency by furnishing two nozzles to spray gas and liquid separately into a transport pipe on the outside circumference of the opening part in a pump-up pipe oriented in the same direction of transportation of the object to be transported in such a way as formed in a ring. CONSTITUTION:A pump-up pipe 14 with smaller dia. than the transport pipe 1 is fixed to a connecting cylinder 9 as fitted in it. A number of jets 25 are provided at a constant spacing around the center hole 28 of a liquid nozzle 24 which is connected with a high-pressure liquid supply port 10 to spray high pressure liquid into a transport pipe 1, wherein the high pressure liquid is sprayed out of said jets 25 oriented in the same direction A as transportation of the object to be transported. A gas nozzle 26 connected with a high-pressure gas supply port 11 to spray the high-pressure gas into said tranport pipe 1 is made substantially in the same construction as the first named liquid nozzle. According to this arrangement the gas and liquid sprayed in simultaneously will flow in the transport pipe without risk of producing a turbulence, so that there is no fear of occurrence of cabitation or other inconveniences.

Description

Detailed Description of the Invention This invention uses a high-pressure gas-liquid two-phase flow as a driving force to suck up liquids such as water and sludge, and solids such as earth, sand, rocks, trees, and grass.
An illumination for transporting or propelling a ship, etc. on underwater water.
It relates to a force generating device.

Various devices of this type have existed in the past (as a collection principle,
(sand pump and slurry pump by rotation of al impeller, (b) diaphragm pump by reciprocating motion of diaphragm, (air lift pump by pressure difference due to C1 air/water mixture, (d+jet pump by suction of high pressure jet water, and (el There are air-fuel mixture jet pumps that use air-fuel mixture high-pressure jet water suction.

However, each of these conventional devices has the following drawbacks.

That is, in the case of the device (a), there is a limit to the particle size of the object to be conveyed, and the driving impeller itself wears out.

(In the case of the device (bl), there is a limit on the particle size of the transported object due to the "valve", and the capacity is low and the range of use is narrow. In the case of the device (C), the pumping force is small and it cannot be used on water. (
In the case of the DL device, there is a "partial gutter" which limits the particle size of the transported object, and cavitation will occur if the pressure of the jet water is increased too much. (In the case of the device No. 01, high efficiency of the driving force is achieved by eliminating cavitation, but since the center of the driving force is placed on the central axis of the IM pipe, the above-mentioned IBt Conduit and the I'l
The suction pipe on the front side of the feed pipe must be connected in a bent manner, which prevents the objects to flow in a straight line and increases the frictional resistance. Furthermore, in the case of the FD+ and TE+ devices, since the driving force is only provided by the liquid, the liquid becomes the object to be conveyed, and an additional driving liquid is required for conveyance. There is a drawback that the flow velocity decreases in the vicinity of the inner wall due to ring formation and frictional resistance with the inner wall of the conveying pipe, and the jet flow velocity at the central axis is also affected.

The present invention solves these conventional problems and provides a thrust generating device that has extremely high operating efficiency and can change the thrust generation state according to conditions such as the type of object to be conveyed and the amount of conveyance. The purpose is to

Therefore, the present invention is characterized in that a connecting tube having a high-pressure liquid supply port and a high-pressure gas supply port on the circumference is removably connected to the end of a general feed pipe, and a 1u
A suction pipe with a smaller diameter than the transport pipe is inserted into the pipe and connected to the pipe so that it can be slid freely in the axial direction, and is connected to the high-pressure liquid supply port to supply high-pressure liquid into the transport pipe in the transport direction of the object. a liquid nozzle body that injects a liquid in an annular manner toward the above, and a liquid nozzle body communicating with the high pressure gas supply port to annularly direct the high pressure gas into the conveying pipe in the one-way feeding direction so as to surround the jet flow of the high pressure liquid. A nozzle body for the gas to be injected is interposed between the suction pipe and the connecting tube in a detachable and replaceable manner.

Hereinafter, the present invention will be explained in detail based on drawings showing examples.

In FIG. 1, reference numeral 1 denotes a short conveyance pipe for conveying objects in the direction of the arrow. A female thread 3 is formed on the inner circumferential surface, and a flange portion 5 having bolt insertion holes 4 is formed at the end on the exit side of the conveyed object. Then, another conveyance tube (not shown) is connected to the outlet side end of the IM conveyance tube 1 via a constricted connecting conveyance tube 6. That is, for connection (the collection pipe 6 is connected to the flange part 5 of the IM feed pipe 1 at one end side flange part 7 with bolts and nuts (not shown), and at the other end, the side flange part 8 It is connected to the flange of the pipe with bolts and bolts (not shown).

In this way, the connecting conveyor pipe 6 is replaceable.

9 surrounds the high pressure liquid supply port lO and the high pressure gas supply port 11.
The connecting cylinder has a male thread 12 on the outer circumferential surface on the -intermediate side, which can be screwed into the female thread 3 of the IM conduit l, and an inward flange part 13 on the other end side. The high-pressure liquid supply port 10 is provided near the flange portion 13, and the high-pressure gas supply port 11 is provided near the male screw portion 12. Further, the flange portion 13 is provided with a fixing mechanism 15 for fixing a suction pipe 14, which will be described later.
6, and a bolt portion +A47 for pressing the pushing piece 16 against the outer peripheral surface. 18 is a sealing material such as an O-ring, 19
is attached to the end face of the flange part 13 of the connection 'rf1g with a screw 20 (this is an old mounting plate, and the suction pipe 14 insertion hole 2 is installed coaxially with the connection tube 9 and slightly wider than the inner diameter of the flange part 13).
1 and also has mounting holes 22 at several locations on the peripheral edge.

The suction pipe 14 has a smaller diameter than the conveying pipe 1, and is fitted into the flange portion 13 of the connecting tube 9 so as to be slidable in the axial direction, and is inserted into the connecting tube 9 and fixed by the fixing mechanism 15. Ru. Further, a connecting flange portion 23 is formed on the outer periphery of the suction side end 81S of the suction pipe 14, and the flange portion 23
It is connected to a predetermined pipe body or device, etc. (not shown).

24 communicates with the high pressure liquid supply port 10 to supply high pressure liquid to Il.
The liquid nozzle body 26 that injects internally in the feeding direction 1 is a gas nozzle body that communicates with the high-pressure gas supply port 11 and injects high-pressure gas into the transport pipe l. The liquid nozzle body 24 is
It has a center hole 28 into which the suction pipe 14 is slidably fitted, and a stepped portion 29 is formed on the outer periphery, and the injection hole 25.
. . are provided in large numbers at equal intervals around the center hole 28, as shown in FIG. Note that the injection holes 25 are parallel to the axis, and the high-pressure liquid from the high-pressure liquid supply port 10 is directed from the injection holes 25 through the annular passage 32 in the direction of conveyance of the 1ull object. It is sprayed in an annular shape. The liquid nozzle body 24 is fitted and locked into the first step 30 formed on the inner circumferential surface of the connecting tube 9 from the end on the male thread 12 side.

Further, the gas nozzle body 26 is ring-shaped,
Its inner diameter is larger than the outer diameter of the stepped portion 29 of the liquid nozzle body 24, and its outer diameter is set to be slightly larger than the maximum outer diameter of the liquid nozzle body 24.
It is fitted and locked into a second step portion 31 formed on the second side inner circumferential surface continuously with the first step portion 30 . Therefore, 1. The gas nozzle body 26 forms a slit-shaped injection hole 27 that is continuous in an annular shape between the gas nozzle body 26 and the step part 29 of the liquid nozzle body 240, and the injection hole 27 is parallel to the axis X and The high-pressure gas from the high-pressure gas supply port 11 is located on the larger diameter side than the injection holes 25 of the liquid nozzle body 24, and flows in a circle from the injection holes 27 in the conveying direction through an annular passage 33. Sprayed in a circular pattern.

In addition, the liquid nozzle body 24 and the gas nozzle body 26 are as follows:
The nozzle body 24 or 26 can be removably inserted into and removed from the connection fIfi9, and can be replaced with various nozzle bodies 24 or 26 with different diameters (or numbers) of the injection holes 25, 27, etc., as shown in FIGS. 3 and 4, for example. It is said that In addition, both nozzle bodies 24.26
Connection in built-in state? +fI9 is prevented from coming off by the step 34 at the back of the female thread 3 of the one-way feed pipe 1 coming into contact or pressure contact with the gas nozzle body 26.
This is done by a plurality of bottles 35 . . . projecting in the axial direction from the liquid nozzle body 24 coming into contact or pressure contact with the liquid nozzle body 24 .

Next, the operation of the thrust generating device configured as above will be explained.

Now, high-pressure liquid such as water is supplied from a liquid supply source (not shown) to the annular passage 32 through the high-pressure liquid supply port 10, and at the same time, high-pressure gas such as air is supplied from a gas supply source (not shown) through the high-pressure gas supply port 11. Once supplied to the annular passage 33, the high pressure liquid and high pressure gas flow through the injection holes 25.2 of the respective nozzle bodies 24 and 26.
7 into the conveying pipe 1.

These high-pressure liquids and high-pressure gases form a high-pressure gas-liquid two-phase flow and exhibit an extremely high driving force. That is, the injection hole 25.
The injection hole 2 is located between the substantially cylindrical injection flow layer formed by the high-pressure liquid injected from ... and the inner circumferential surface of the conveyor pipes 1 and 6.
Since there is a cylindrical jet flow layer formed by the high-pressure gas injected from 7, the high 17 liquid appears to be injected into a cylinder running at high speed in the jet direction G.
Therefore, not only is there no friction such as that which occurs in a stopped cylinder, but also negative pressure (suction blade) caused by a stop in the high-pressure gas conveying pipe ) Due to the synergistic 'AJ effect', the jet flow of high-pressure liquid maintains the initial velocity at the time of jetting, rather increasing it, and creates an extremely large negative pressure (suction blade) inside the jet flow layer. Become.

Therefore, for example, when this device is used as a suction pump for sucking up liquids such as water and sludge, or solids such as earth, sand, rocks, trees, grass, and grains as the feed material, Due to the pressure difference caused by the high-pressure gas-liquid two-phase flow flowing inside the retrieval pipe 1.6, the above-mentioned general material is sucked into the two pipes 14, and a cylindrical jet formed by high-pressure water. It is sent through the fluid layer at high speed without encountering any resistance.

Furthermore, for example, when the device is used as a propulsion device for a ship's hull, etc., when the suction pipe 14 is submerged in water, the water sucked up as the material to be transported flows into the conveying pipe together with the high-pressure gas-liquid two-phase flow. 1.6 and the reaction force ← causes the above-mentioned hull to obtain propulsion, and even when the suction pipe 14 is on the water,
Similarly, l[I thrust can be obtained by the reaction caused by the collision between the inhaled air and the high-pressure gas-liquid two-phase flow.

Then, if the suction pipe 14 is fixed by the fixing mechanism 15 so that the distal end 36 of the suction pipe 14 protrudes from both nozzle bodies 24 and 26 as shown in the figure, the distal end 36 and Ill.
The jet flow of high pressure liquid is further accelerated by the negative pressure generated between the pipe 1 and the high pressure gas jet flow. Note that, as shown by the imaginary line in FIG. The nozzle bodies 24 and 26 are connected to the connection ff.
]9 and the one-way feed pipe 1, and can be removed by retracting the suction pipe 14, and the nozzle body 24.2
Either or both of 6 can be replaced with a different one. Furthermore, the connecting conveying pipe 6 can be replaced with another one, such as an IC with a reduced amount, as necessary, and the conveying force can be changed in various ways depending on the degree of the reduced amount. Of course, the connection conveying pipe 6 may be a parallel pipe.

Note that the present invention is not limited to the illustrated embodiments (
, various modifications 81 and 11 may be made without departing from the gist; for example, the shape, position, number, etc. of the injection holes 25 of the liquid nozzle body 24 may be changed as long as they have the same function. In addition, the injection holes 27 of the gas nozzle body 26 may be divided into sections in the circumferential direction.
Similarly to No. 5, the nozzle body 26 itself may be configured by providing a large number of through holes at regular intervals. In this case, the gas nozzle body 26 is removably fitted to the outer peripheral step portion 29 of the liquid nozzle body 24.

Further, in this case, the outer peripheral stage tr of the liquid nozzle body 24
It is also preferable to further form a stepped portion on ++29, into which the gas nozzle body 26 is removably fitted.
The second step portion 31 of the connecting tube 9 and the pin 35 of the gas nozzle body 26 can be omitted. The liquid and gas used are
Materials other than water and air can be used as long as they have the same functionality. Furthermore, it goes without saying that this device can also be used with only a high-pressure jet flow of either high-pressure liquid or high-pressure gas.

The present invention has effectively achieved its intended purpose with the configuration detailed above. In particular, a connecting tube 9 having a high-pressure liquid supply port 10 and a high-pressure gas supply port 11 on its circumference is removably connected to the end of the conveying tube 1, and is connected to the connecting tube 9 more than the conveying tube 1. A small-diameter suction pipe 14 is inserted and connected so that it can be slid freely in the axis X direction, and further communicates with the high-pressure liquid supply port 10 to supply high-pressure liquid into the transport pipe 1 in the front direction of the transported object. A
11B) communicates with the high-pressure gas supply port 11 and supplies the high-pressure gas into the II feed pipe 1 in the first general direction to surround the jet flow of the high-pressure liquid. Since the gas nozzle body 26 which injects gas annularly toward A is removably interposed between the suction pipe 14 and the connecting tube 9, the 1 ull material to be delivered is formed by high-pressure liquid N.
O, 13 The high-pressure liquid is transported inside a substantially cylindrical or cylindrical jetted flow layer, and the high-pressure liquid becomes the object to be transported and li! ! There is no vicious cycle of increasing paper feeding capacity,
Moreover, since a jet layer of high-pressure gas is formed between the jet layer of high-pressure liquid and the inner circumferential surface of the IM feed pipe I, the high-pressure liquid not only receives no resistance but also Due to the synergistic effect of gas-liquid two-phase flow, extremely large driving force can be exerted, improving operational efficiency. Furthermore, since it is a gas-liquid injection force type, cavitation of high-pressure liquid is effectively prevented.

Further, a liquid nozzle body 24 and a gas nozzle body 26 (J
, by disconnecting the connecting tube 9 and the conveying tube 1 and retreating the suction tube 14, it can be removed from the connecting tube 9 and easily replaced with another one with a different injection hole 25, 27, etc. Therefore, the thrust generation state can be varied in accordance with conditions such as the type of object to be transported and the amount of transport. In this way, by simply preparing various nozzle bodies 24.2G, the present thrust generating device can be applied over a wide range of use, and has excellent versatility regardless of whether it is used underwater or above water.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention, FIG. 2 is a front view of the combined state and state of the liquid and gas nozzle bodies,
FIG. 3 is a longitudinal sectional view of another embodiment of the liquid and gas nozzle bodies in a combined state, and FIG. 4 is a front view thereof. l...Transport pipe, 9...Connection tube, 10...High pressure liquid supply port, 11...High pressure gas supply port, 14...Suction pipe, 24...Liquid nozzle body, 26 ...Nozzle body for gas. Patent applicant Toshiaki Kezuka: 4°-3 Figure z1゛shi2 Figure 4 8 Figure 4

Claims (1)

[Claims] 1. A connecting tube 9 having a high-pressure liquid supply port 10 and a high-pressure gas supply port 11 on the same side is removably connected to the 1M:1 section of the conveying pipe I, and the connecting tube 9 is connected to the I refeeding pipe. A suction pipe 14 having a diameter smaller than that of 1 is inserted and connected so as to be slidable in the axial direction A liquid nostle body 24 that injects annularly in the feeding direction of the Ill feed material 111, and a liquid nostle body 24 that communicates with the high pressure gas supply port 11 to supply high pressure gas to the II feed pipe in order to surround the jet stream of the high pressure liquid. 1 inside” 2 notes 11! A thrust generating device characterized in that a gas nozzle body 26 which injects gas annularly in the feeding direction is detachably interposed between the suction pipe 14 and the connecting tube 9.