JP2772500B2 - Fluid discharge nozzle device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention ejects a fluid such as air or water at a predetermined pressure to effectively feed a fluid substance into a pipe, suction settled sludge, or mix and float various substances. The present invention relates to a composite fluid discharge nozzle device.

[0002]

2. Description of the Related Art When water, sewage, mud, powder, solid matter, and other substances are pumped, high-pressure water is injected from a nozzle into a pipe, thereby using the negative pressure generated at the pipe tip to discharge sewage. Various types of jet pumps have been proposed which suck in, settled sludge, and other substances and feed the inside of the pipe with this injection pressure. Also, instead of water, a high-pressure air stream is injected into the pipe, and similarly, suction is performed at the negative pressure generated on the opposite side of the injected air stream,
An apparatus has been proposed in which suction sludge or the like is raised in a pipe by aeration action in the pipe and pressure-fed.

[0003]

As shown in FIG. 10, a conventional nozzle for injecting high-pressure water or high-pressure air is provided with a suction / discharge pipe having a required diameter or a plurality of small-diameter nozzle pipes from the outer periphery of a transfer pipe. At a required interval and at a predetermined angle with respect to the conveying pipe, they are integrated by welding or the like. For this reason,
Since each nozzle pipe is fitted and fixed in the discharge pipe, it takes time and effort to manufacture, and it is difficult or impossible to manufacture discharge pipes and small-diameter transfer pipes. The angle is limited to the range that can be manufactured, and furthermore, a string-like body contained in a fluid material, particularly sludge, and the like is easily entangled with the nozzle pipe protruding into the discharge pipe, which may cause blockage in the pipe such as the discharge pipe. . The number of nozzle tubes,
And the number of steps is limited at the time of manufacture and cannot be easily changed.

The present invention is easy to manufacture, and can be manufactured even when the diameter is very small. The number of nozzles can be easily changed, and the high-pressure fluid injected into the pipe from the nozzle rotates while rotating about the pipe center. An object is to form a continuous conical shape and to reliably perform pressure feeding and mixing of a fluid.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and has a ring-shaped inner peripheral nozzle piece having a required size and an outer peripheral surface having an angled surface. An outer peripheral nozzle piece having an inner peripheral surface with an angle so that the inner peripheral nozzle piece is fitted to the inner peripheral portion is opposed to each other and fitted together to form an integral part. Recesses are formed at different positions, conduction is provided between the recesses through conduction holes formed on the outer peripheral surface of the inner peripheral nozzle piece, and a ring is provided only at one end position between the opposed surfaces of the two nozzle pieces. And a fluid supply pipe for supplying a high-pressure fluid from a tangential direction is provided in each concave groove of the inner and outer peripheral nozzle pieces. Further, as one unit of the nozzle main body, one or more stages are provided in the pipe via a retainer as necessary. Further, the gist of the present invention is to form the nozzle hole with inner and outer double concentric different diameters by sandwiching a sleeve between the inner and outer nozzle pieces as necessary.

[0006]

The fluid discharge nozzle device according to the present invention is divided into an inner peripheral nozzle piece and an outer peripheral nozzle piece having an angle on a contact surface with each other, and a concave groove for guiding a fluid to a different position on the contact surface of the two nozzle pieces. It is formed over the entire circumference of both nozzle pieces, and one of the surfaces facing each other across the two concave grooves is fitted so as to be in close contact with each other to integrally form a ring-shaped nozzle body, and the tip surfaces of both nozzle pieces are formed. A gap is formed between them, and this gap is used as a ring-shaped nozzle hole. Therefore, the manufacture of the ring-shaped nozzle body is easy, and the nozzle holes can be formed in a continuous ring shape. Also, when a high pressure fluid such as a gas or a liquid is supplied from the tangential direction into each of the concave grooves of the nozzle body, while being formed at different positions on the contact surface of each nozzle piece and conducting through the through hole, The high-pressure fluid mixed in the groove and ejected from the nozzle hole at the tip can be mixed and continuously ejected in a conical shape and swirled, so that transport, mixing, and stirring can be performed efficiently. Can be arbitrarily changed according to the application.

[0007] If a ring-shaped nozzle formed as a pair of both inner and outer nozzle pieces is provided as a unit and is disposed via a retainer, a multi-stage nozzle having a stronger pumping force and mixing force can be easily formed. In addition, since there are no protrusions in the discharge pipe and the pressure feed pipe, the flow of the pressure feed can be smooth, and if formed at an arbitrary position in the middle of the pressure feed pipe, different fluids such as gas and liquid are supplied. Since it can be mixed simultaneously with the injection by the nozzle hole, it is also suitable for mixing substances to be mixed immediately immediately before use.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a fluid discharge nozzle device according to the present invention. First, the ring-shaped nozzle body A of the present invention will be described based on the principle of FIG. This ring-shaped nozzle body A has an inner peripheral nozzle piece 1 having a required conical shape.
And an outer peripheral nozzle piece 2 which is fitted in opposition to the outer nozzle piece. This is used as one unit, and one unit or two or more units are used by being stacked via a retainer 5. Using a required metal such as metal steel and a synthetic resin depending on the application, it is formed in a required size according to the application and purpose.

The inner peripheral nozzle piece 1 has a concave groove 11 formed on the outer peripheral surface thereof, that is, substantially at the center of the surface opposed to the outer peripheral nozzle piece 2 over the entire circumference of the inner peripheral nozzle piece 1. This groove 1
Reference numeral 1 denotes a semi-circular shape, a square groove, or any other desired cross-sectional shape and size in addition to the illustrated semicircular shape. One of them is in contact with the outer peripheral nozzle piece, and the other side face is formed with a gap between the outer peripheral nozzle piece 2 and the gap is a ring-shaped nozzle hole 3. The nozzle hole 3 has a desired conical angle by shaping the side surface 13 of the inner peripheral nozzle piece, for example, as shown in the drawing, by making it parallel or slightly inclining with respect to the axis of the center of the nozzle hole. The shape of the fluid to be ejected can be cone-shaped, or a parallel nozzle can be selected in various ways.Moreover, the gap between the nozzle holes can be made parallel, or the outer end side that opens to the outside from the inner end as shown in the figure. The gap can be enlarged to form a pre-expanded shape.

The outer peripheral nozzle piece 2 has a groove 21 formed substantially at the center of the inner peripheral surface over the entire length of the inner peripheral surface. The shape of the concave groove 21 is the same as that of the inner peripheral nozzle piece 1. The grooves 11 and 21 of the pieces 1 and 2 are combined with each other to form one ring-shaped groove.
One of the inner peripheral side surfaces 22 sandwiching the inner peripheral nozzle piece 1 is brought into close contact with the side surface 12 of the inner peripheral nozzle piece 1 and bonded or welded as necessary to form an integral body.
The nozzle hole 3 is opposed to the side surface 13 with a gap as described above. The shape of the side surface 23 is also arbitrarily selected, and is set to a shape according to the use, the type of the material to be fed or mixed, or the like. One or two or more fluid supply pipes 4 are joined to the outer surface of the outer peripheral nozzle piece 2 in a tangential direction, and a gas-liquid or bubble-mixed fluid can be supplied into the concave grooves 11 and 21 while swirling. And

As shown in FIG. 1, a ring-shaped nozzle body A in which the inner and outer nozzle pieces 1 and 2 are integrated is used as one unit, and this is used as a base for a pumping pipe or a mixing pipe.
Alternatively, in the case of joining in the middle, an O-ring fitting groove may be formed on the contact surface between the outer peripheral nozzle piece 2 and the flange or the retainer, and the O-ring may be fitted into this groove to seal.

In the ring-shaped nozzle body A, the nozzle hole 3 is formed on the inner peripheral side of the ring-shaped nozzle body A in FIG. 1 so as to form a desired cone angle. It is formed so as to be perpendicular to the axis on the peripheral surface. As described above, depending on the method of forming the nozzle holes, various objects can be appropriately used according to the application, such as mixing, diffusion, and pressure feeding, and this is arbitrarily selected depending on the application.

When the ring-shaped nozzle body A as one unit configured as described above is constructed in two or more stages in the middle of the tube, it is used as shown in FIG.

In FIG. 2, a retainer 5 having a diameter slightly larger than the inner diameter of the nozzle body A is sandwiched between the two nozzle bodies A and A so as to fix the two nozzle bodies A and A at a required interval. An upstream pipe 6 is provided in one nozzle body A, and a downstream pipe 7 is provided in the other nozzle body A, respectively.
The connecting rod 8 penetrates between the flanges 61 and 71 of the opposed pipes 6 and 7, and a nut 9 is screwed into the pipes 6 and 7.
The two nozzle bodies A and the retainer 5 are integrated on the same axis. At this time, the nozzle holes 3, 3 of each nozzle body A are opened in the pipe 6 or the retainer 5, and are disposed so as to have a predetermined angle α with respect to the inner peripheral surface thereof. In this case, a sealing material 10 such as an O-ring may be interposed to prevent leakage of fluid from between the nozzle body A and the retainer 5 and between the nozzle body A and the pipe 6 or 7. The sealing material 10 includes flanges 61 and 71,
An O-ring fitting groove is formed in either the nozzle body A or the retainer 5, and an O-ring is fitted into this groove to seal.

In FIG. 2, two nozzle bodies are disposed via a retainer to the pipe body. However, in a long pipe, the nozzle bodies A are provided in a plurality of stages and at predetermined intervals of the pipe. In order to ensure that the material is pumped. Further, it is also possible to combine the nozzle bodies A in three or more stages via a retainer, and arrange one or more of them in a pipe as one unit.

Therefore, as shown in FIG. 2, when the nozzle body A of the present invention is provided in one or two or more stages in a pipe, when the required high pressure air (gas) or water (liquid) is supplied from the fluid supply pipe 4, the nozzle In the ring-shaped concave groove in the main body A,
Further, the fluid is supplied as a swirling flow, mixed with each other, and the mixed fluid is jetted into the pipe from the ring-shaped nozzle hole 3 which is connected to the concave groove. At this time, the high-pressure fluid ejected from the nozzle hole has a conical shape corresponding to the installation angle of the nozzle hole and intersects at the center of the tube. As a result, a negative pressure is generated in the pipe body on the side opposite to the nozzle body, and this negative pressure acts on the suction force to suck fluid or solid matter (including powder) such as sludge into the pipe body. It is mixed and agitated by a conical jet fluid that is a swirling flow from a hole, and is pressure-fed into a pipe.

As described above, two or more stages of the nozzle body A
Is installed, the angles α of the nozzle holes 3 of each nozzle body A can all be equal, or the angles of the nozzle holes can be changed depending on the state of mixing and kneading.

FIGS. 4 to 6 show a first embodiment of the present invention, in which one unit of a nozzle body A is stacked in two stages with a retainer 5 interposed therebetween. As shown in FIG. 1, the nozzle body A includes an inner ring piece 1 and an outer ring piece 2 which are opposed to each other. The inner peripheral nozzle piece 1 has a conical outer peripheral surface, and a concave groove 11 is formed on the outer peripheral surface. The outer peripheral nozzle piece 2 is tapered so that the inner peripheral nozzle piece 1 fits on the inner peripheral surface, and a concave groove 21 is formed on the inner peripheral surface. As shown in FIG. 4, when the inner peripheral nozzle piece 1 is fitted into the outer nozzle piece 2 as shown in FIG. The fluid supply pipes 4 and 4 are connected to the respective grooves 11 and 21 from the tangential direction, and the respective grooves 11 and 21 are formed.
1, the fluid is individually introduced, and the fluid is jetted from a nozzle hole 3 formed between the contact surfaces of the inner and outer nozzle pieces 1.2.

In this case, since the fluid introduced into the groove 11 is ejected from the nozzle 3, the groove 21 is
As shown in FIG. 6, the contact surface between the inner and outer ring pieces 1 and 2 is formed by arranging circularly-shaped conduction holes 18 in a circular direction so as to communicate with the inner and outer ring pieces 1 and 2. Ridges 19
Abuts on the inner peripheral surface of the outer ring piece 2 to maintain the accuracy of the pairing of the inner and outer ring pieces 1 and 2, and the fluid introduced into the concave groove 11 passes through the conductive groove 18 through the concave groove 21 through the nozzle 21. Injection from the hole 3 is enabled.

Therefore, even if grooves are individually formed in the inner and outer outer ring pieces 1 and 2 and fluids are introduced independently of each other, the grooves 2 are formed in the nozzle body and through the through holes.
After the two fluids are mixed in 1, they are ejected from the nozzle holes 3. If one of the fluids is a gas and the other is a liquid, a mixture of gas and liquid is ejected from a nozzle, and two different fluids are supplied respectively.
It is also possible to supply two gases, and the type of the fluid to be supplied can be freely combined according to the use or the like.

The outer shape of the nozzle body A can be square as shown in FIG. 5 in addition to the disk shape. When a circular flange is used, the insertion position of the rod 8 can be changed as shown in FIG. Can be placed along the outer surface of the body,
When two or more units are combined via the retainer 5 as shown in FIG. 6, the unit can be made compact.

7 to 9 show different embodiments of the present invention. The same ring-shaped nozzle hole is formed by inserting a sleeve S at an angle formed by the facing surface between the inner and outer peripheral nozzle pieces 1 and 2 facing each other in the first embodiment shown in FIGS. 3 is an inner / outer double type with the sleeve S interposed therebetween, so that the respective fluids ejected from the concentric / diameter double nozzle holes are mixed outside the nozzle holes.

The nozzle holes 3 of the inner and outer nozzle pieces 1 and 2 sandwiching the sleeve S are not continuous ring shapes as shown in FIG. These arc-shaped nozzle holes 31, 31
A protruding piece 32 for holding the inner and outer circumferences of the sleeve S therebetween is formed, and the sleeve is fixed to the center of the nozzle hole by the protruding pieces 32, 32 so that the nozzle hole has the same width over the entire circumference.

The method of supplying the fluid to the groove 11 of the inner nozzle piece 1 and the assembly of the inner and outer nozzle pieces 1 and 2 are as shown in FIGS. That is, flanges 14 and 15 are disposed above and below the inner and outer nozzle pieces 1 and 2 which are provided inside and outside, respectively, and the opposite flanges 14 and 15 sandwiching the inner and outer nozzle pieces 1 and 2 are formed into a square inner and outer circumference. By turning the arrangement angle by 45 degrees with respect to the nozzle pieces 1 and 2, the groove is fastened and fixed by a rod 8 arranged along the outside of the inner and outer ring pieces, and a concave groove formed in one flange 15. Fluid introduced into the nozzle 15h through the fluid supply pipe 4 is supplied from the groove 15h into the groove 11 in the inner nozzle piece 1 through the supply hole 17.

[0025]

According to the fluid discharge nozzle apparatus of the present invention, since the high-pressure fluid supplied to the nozzle body is supplied from the tangential direction, a swirling flow is generated in the concave groove of the nozzle body.
In addition, since the high-pressure fluid is ejected into the pipe through the nozzle hole, the high-pressure fluid has a continuous conical shape (cone) in the pipe while having a rotational force. Increase. Further, since the inlet side of the pipe 7 has a negative pressure, it can be used as a vacuum generator. Further, the fluid ejected from the nozzle hole having the energy determined by the supply pressure, the nozzle opening area, etc., also has the energy in the propulsion direction, whereby the conveyed high-pressure fluid is conveyed through the pipe by the ejected high-pressure fluid. Since the fluid acts to collect objects at the center of the pipe, and the cone-shaped ejection fluid itself is given a swirling force, the fluid conveyed in the pipe is efficiently swirled without being pressed against the inner surface of the pipe. It can be conveyed and can be conveyed even on long pipelines. The nozzle device of the present invention is manufactured by forming the inner peripheral nozzle piece and the outer peripheral nozzle piece separately, forming a ring-shaped concave groove on the inner side and a ring-shaped nozzle hole on the outer side, facing each other and integrating them. It is easy to manufacture, it is a continuous nozzle hole, and the shape and angle of the nozzle hole can be arbitrarily selected, and even small diameter ones can be easily manufactured. Can be used. Further, it can be used for conveying and mixing and stirring according to the direction in which the nozzle holes are provided, and further for other purposes. In addition, concave grooves are formed at different positions on the inner and outer nozzle pieces, and further, if necessary, a sleeve is sandwiched between the inner and outer nozzle pieces, and fluid is individually supplied to each of the concave grooves, and one nozzle hole is used. By jetting, two different fluids can be mixed and jetted in the nozzle body, and at this time, various fluid jetting methods can be adopted by changing the pressure and type of the two fluids.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating the principle of one unit of a fluid discharge nozzle device of the present invention.

FIG. 2 is a cross-sectional view of an embodiment in which a nozzle body of the present invention is used as a pump or a pump using a tubular body in two stages.

FIG. 3 is a cross-sectional plan view of FIG. 2;

FIG. 4 is a sectional view showing an embodiment of the fluid discharge nozzle device of the present invention.

FIG. 5 is a plan view of the same.

FIG. 6 is a sectional view taken along the line XX in the embodiment of FIG. 4;

FIG. 7 is a sectional view of a second embodiment of the present invention having inner and outer concentric double nozzle holes.

FIG. 8 is a plan view of the same.

FIG. 9 is a plan view showing a state where an upper flange is removed in the embodiment of FIG. 7;

FIG. 10 is an explanatory diagram of a known example.

[Explanation of symbols]

 A ring-shaped nozzle body 1 outer peripheral nozzle piece 11 concave groove 2 inner peripheral nozzle piece 21 concave groove 3 nozzle hole 4 fluid supply pipe 5 retainer 6 pipe 7 pipe 8 connecting rod

Claims (2)

(57) [Claims] 1. A ring-shaped inner peripheral nozzle piece having a required size and an outer peripheral surface having an angled surface, and an angled inner peripheral nozzle piece fitted to an inner peripheral portion. The outer peripheral nozzle pieces as the peripheral surfaces are fitted together to form an integral part, and concave grooves are formed at different positions on the opposed surfaces of the inner and outer peripheral nozzle pieces, and the gap between the concave grooves is formed on the outer peripheral surface of the inner peripheral nozzle piece. Conducting with each other through the formed conducting holes, and forming a ring-shaped nozzle hole only at one tip position between the opposed surfaces of both nozzle pieces,
A composite type fluid discharge nozzle device comprising: a fluid supply pipe configured to supply a high-pressure fluid from a tangential direction in each concave groove of the inner and outer peripheral nozzle pieces. 2. A ring-shaped inner peripheral nozzle piece having a required size and an outer peripheral surface having an angled surface, and an angled inner peripheral piece fitted to the inner peripheral portion. The outer peripheral nozzle pieces as the peripheral surfaces are opposed to each other and fitted together to form an integral body, and concave grooves are formed at different positions on the opposed surfaces of the inner and outer peripheral nozzle pieces, respectively. A ring-shaped nozzle hole is formed only at one end position, a sleeve is sandwiched between the contact surfaces of the inner and outer nozzle pieces, and the nozzle hole is formed as an inner / outer concentric double type with this sleeve interposed, and A composite type fluid discharge nozzle device, wherein a fluid supply pipe for supplying a high-pressure fluid from a tangential direction is provided in each concave groove of the nozzle piece.