JP3055623B1 - Fluid pumping equipment - Google Patents

Abstract

A conventional fluid transfer device using an impeller can hardly increase the pressure of the fluid by itself, and cannot transfer the fluid by appropriately pressurizing the fluid according to the type of the fluid. In addition, the impeller itself has a complicated structure and mounting structure. SOLUTION: A fluid pumping device P of the present invention includes a two-stage fluid guide blade group 3 having an inflow portion 2 at the center of a first disk 1 and arranged concentrically on the inner surface of the first disk 1. A first blade structure 4 and a first disk 5 having an inflow portion 6 at the center of a second disk 5 and a two-stage fluid guide blade group 7 concentrically arranged on the inner surface of the first disk 5 The first and second blade structures 4 and 8 are combined and housed in the casing 9 in a state where the blade structure 8 and the fluid guide blade group 3 and the fluid guide blade group 7 are fitted in the gaps on the other side. It is characterized by having done.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid pumping device capable of increasing the pressure of a fluid and discharging the fluid as a pressurized fluid.

[0002]

2. Description of the Related Art Conventionally, when transferring a fluid such as a gas or a liquid, a fluid transfer device using an impeller such as a sirocco fan or an impeller has been widely used. These fluid transfer devices use an impeller rotated by a drive source to suck and discharge the fluid, and transfer the fluid at a constant flow rate. The fluid transfer device can secure a desired transfer amount by appropriately adjusting the rotation speed of the impeller.

[0003]

However, a conventional fluid transfer device using an impeller such as a sirocco fan or an impeller transfers a predetermined amount of fluid by suctioning and sending out the fluid at a predetermined flow rate. However, there is a problem that the pressure of the fluid cannot be increased by itself because the pressure of the fluid can hardly be increased by itself. In addition, the sirocco fan and impeller used in the conventional fluid transfer device have not only their own structures, but also the mounting structure of these impellers is complicated, the production cost is high, and the maintenance cost is also high. Was.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has a fluid pumping device capable of transferring a fluid while pressurizing it with a simple structure, thereby reducing the manufacturing cost and the maintenance cost. It is intended to provide.

[0005]

According to a first aspect of the present invention, there is provided a fluid pumping apparatus having an inflow portion in the center of a first disk and fluid guide vanes on the inner surface of the first disk at a predetermined distance from each other. the and having a first blade structure in which a plurality arranged concentrically to entire circumference arranged over the flow body guide blades with a gap mutually spaced, the inflow portion in the center of the second disk a second blade structure is formed by arranging plural second disk inner surface of a predetermined interval from each other is fluid guide vanes entire circumference flow body guide blades arranged over the with a gap concentrically to each other , At least one set of first and second blade structures fits each fluid guide blade group into a gap on the other side.
And a casing having an inlet outlet of the housed and fluid in combination Nde, first, second blade structure it
The tip of the fluid guide blade is inclined in the opposite direction to the rotation direction.
And the first and second blade structures are in opposite directions to each other.
And pressurizes the fluid flowing from the inflow port of the casing and the inflow portions of the first and second disks, and pumps the fluid from the outflow port of the casing.

Further, the fluid pumping device of claim 2 of the present invention, in the invention described in claim 1, further comprising a first driving source for rotating in opposite directions the second blade structure It is a feature.

According to a third aspect of the present invention, there is provided a fluid pumping apparatus according to the first or second aspect , wherein a plurality of sets of the first and second blade structures are housed in the casing. It is characterized by the following.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in FIGS. In each of the drawings, FIG. 1 is a cross-sectional view showing an embodiment of the fluid pumping device of the present invention, and FIG. 2 is a diagram showing a first blade structure of the fluid pumping device shown in FIG.
(A) is its plan view, (b) is its cross-sectional view, and FIG.
FIG. 9 is a diagram showing a second blade structure of the fluid pumping device shown in FIG.
(A) is its plan view, (b) is its cross-sectional view, and FIG.
FIG. 4 is a cross-sectional view of the fluid pumping device shown in FIG.

As shown in FIG. 1, for example, a fluid pumping apparatus P of this embodiment has an inflow portion 2 at the center of a first disk 1 and concentric circles on the inner surface of the first disk 1 with a predetermined interval therebetween. A first blade structure 4 having a plurality of rows (for example, two rows) of fluid guide blade groups 3A and 3B (hereinafter, may be simply referred to as “fluid guide blade group 3”) arranged in a zigzag manner;
A plurality of (for example, two) rows of fluid guide blade groups 7A and 7B having an inflow portion 6 at the center of the second disk 5 and concentrically arranged on the inner surface of the first disk 5 at a predetermined interval from each other.
(Hereinafter, it may be simply referred to as a “fluid guide blade group 7”.) A first blade structure 8 having a fluid guide blade group 3A, 3B and a fluid guide blade group 7A, 7B having opposing blades. A flat, substantially circular casing 9 containing the first and second blade structures 4 and 8 in combination in a state fitted in the gap between the structures and having fluid inlets 9A and 9B at the center of both side surfaces. And fluids sucked from the inlets 9A, 9A at the center of both sides of the casing 9 as shown by arrows, from the inflow portions 2, 6 of the first and second disks 1, 5, from the first and second blades. The fluid passes through the fluid guide vane groups 3 and 7 of the structures 4 and 8, respectively, during which the fluid is pressurized in the fluid guide vane groups 3 and 7, and the pressurized fluid is sent out from the outlet 9B of the casing 9. It is. Only a small gap is formed between the outer surface of each of the first and second disks 1 and 5 and both inner surfaces of the casing 9, and the fluid flowing from the inlet 9A of the casing 9 hardly passes through these gaps. It has become. Further, the fluid pumping device P can be applied to any fluid such as a gas such as air or a liquid such as water.

The inflow portion 2 of the first blade structure 4 is formed as a space which bulges outward from the center of the first disk 1 in a cylindrical shape, and has an inlet 2A (FIG. 2 (b)). The inflow portion 6 of the second blade structure 8 is also formed as a space that bulges outward from the center of the second disk 5, similarly to the inflow portion 2 of the first blade structure 4, and its circumferential surface has a circumferential direction. Inflow ports 6A (see FIG. 3B) are formed at equal intervals. As shown in FIG. 1, shaft members 10 and 11 passing through extensions of the shaft cores of the first and second blade structures 4 and 8 are connected to the center of the side surfaces of the inflow portions 2 and 6, respectively. The first and second blade structures 4 and 8 rotate in directions opposite to each other by obtaining rotational force from a drive mechanism (not shown). Spaces corresponding to the inflow portions 2 and 6 of the first and second blade structures 4 and 8 are formed in the center portions of both side surfaces of the casing 9, and the inflow ports are formed on the respective peripheral surfaces at equal intervals in the circumferential direction. 9A are formed in plurality. In the center of both sides of the casing 9, there are formed holes through which the shaft members 10 and 11 of the first and second blade structures 4 and 8 penetrate, and between these holes and the shaft members 10 and 11. Seal bearings 12 and 13 are provided.

As shown in FIGS. 2 (a) and 3 (a), each of the fluid guide blade groups 3, 7 of the first and second blade structures 4 includes a first and a second disk 1. A plurality of fluid guide vanes 3 arranged in a ring shape at a predetermined interval in each circumferential direction;
1 and 71, and each of the fluid guide blades 31 and 71 is inclined from the radial direction in the direction opposite to the rotational direction indicated by an arrow in each of FIGS. It is arranged in a spiral shape as a whole with a slight curvature. The first disk 1 is formed smaller in diameter than the second disk 5, and the fluid guide blades 3 and 7 are all formed at substantially the same height.

As shown in FIG. 1, a second blade structure 8 is provided between the fluid guide blade group 3A on the radially outer side of the first blade structure 4 and the fluid guide blade group 3B on the radially inner side. A ring-shaped gap into which the fluid guide vane group 7B on the inside is fitted is formed between the fluid guide vane group 7A on the radial outside of the second blade structure 8 and the fluid guide vane group 7B on the radial inside. Is formed with a gap into which the fluid guide blade group 3A outside the first blade structure 4 is fitted. Further, the fluid guide blade group 3B inside the first blade structure 4 is fitted on the center side of the fluid guide blade group 7B inside the second blade structure 8,
The inner end of each fluid guide blade of the fluid guide blade group 3 does not protrude into the inflow port. First in casing 9
FIG. 4 is a plan view showing the relationship between the fluid guide blade groups 3A, 3B, 7A and 7B of the two blade structures 4 and the second blade structures 8 in combination. As is clear from FIG. 4, the gap formed between the casing 9 and the disk 5 of the first blade structure 8 gradually increases as going from the outlet 9 </ b> B clockwise. .

Next, the operation will be described. When the fluid pumping device P is started, the first blade structure 4 rotates counterclockwise via the shaft member 10 as shown in FIGS. 1, 2 and 4, and the second blade structure 8 1, and rotates clockwise through the shaft member 11 as shown in FIGS. This rotational energy causes the fluid to flow through the inlets 9 on both sides of the casing 9.
A and 9A are sucked into the respective casings 9 and flow into the spaces sandwiched between the first and second disks 1 and 5 from the inlets 2A and 6A of the first and second blade structures 4 and 8.

This fluid first receives centrifugal force due to the rotational energy of each fluid guide blade 31 of the fluid guide blade group 3B inside the first blade structure 4 which rotates counterclockwise as shown in FIG. The fluid is guided by the fluid guide blades 31 and forms a counterclockwise spiral flow to reach the fluid guide blade group 7B inside the second blade structure 8 rotating in the opposite direction (clockwise) outside thereof. The counterclockwise spiral fluid is a fluid guide blade group 7B that rotates clockwise as shown in FIG.
The first blade which rotates in the opposite direction (counterclockwise) outside the fluid guide blade group 7B while the pressure of the fluid rises and changes its flow clockwise due to the compressive action of each fluid guide blade 71 of FIG. It reaches the fluid guide vane group 3A outside the structure 4. This fluid is supplied to the fluid guide blade group 3A as shown in FIG.
The second blade structure 8 that rotates in the opposite direction (clockwise) outside the fluid guide blade group 3A while receiving the compressing action of each of the fluid guide blades 31 and further increasing the pressure of the fluid and changing its flow while changing the flow. Reaches the outer fluid guide vane group 7A, where the fluid also flows out from the fluid guide vane group 7A toward the inner peripheral surface of the casing 9 while being further compressed, and turns while flowing along the inner peripheral surface of the casing 9 while rotating. It is pumped from the outlet 9B. That is, the fluid sucked into the casing 9 is the first fluid.
After passing through the second blade structures 4 and 8, each of the fluid guide blade groups 3B, 7B, 3A, and 7A undergoes a four-stage compression action, and is sent out from the outlet 9B of the casing 9 as a pressurized fluid. Is done.

As described above, according to the fluid pumping device P of the present embodiment, the first disk 1 has the inflow portion 2 at the center thereof and is arranged concentrically on the inner surface of the first disk 1 in two rows. A first blade structure 4 having fluid guide blade groups 3A and 3B, and an inflow portion 6 at the center of a second disk 5 and, for example, two rows arranged concentrically on the inner surface of the first disk 5 First blade structure 8 having the fluid guide blade groups 7A, 7B of the first embodiment, and the fluid guide blade groups 3A, 3B of the first blade structure 4.
The first and second blade structures 4 and 8 are combined and housed in a state where the fluid guide blade groups 7A and 7B of the second blade structure 8 and the fluid guide blade groups 7A and 7B are fitted in the gaps on the other side, and the fluid flows in and out. A flat and substantially circular casing 9 having 9A, 9B at the center of both side surfaces , and the first and second blade structures 4, 8 are provided.
Fluids that rotate in opposite directions and are sucked from the inflow portions 7A at the center of both sides of the casing 9 via the inflow portions 2 and 6 are provided in four stages of the first and second blade structures 4 and 8 as fluid guide blades. Compression over 4 stages via groups 3B, 7B, 3A, 7A ,
It is pressurized. As described above, in the present embodiment, it is possible to realize the pressurized supply of fluid, which is almost impossible with a fluid transfer device using a conventional sirocco fan or impeller. In addition, since the blade structures of the first and second blade structures 4 and 8 are simple, manufacturing costs can be reduced as compared with conventional sirocco fans and impellers, and maintenance is easy, and maintenance costs are reduced. Can be reduced.

In the above embodiment, the first and second blade structures 4, 8 are rotated in opposite directions. However, for example, the first blade structure 4 is
, And by rotating only the second blade structure 8, it is possible to achieve the same operation and effect as in the above embodiment.
Further, in order to further increase the pressure of the fluid, three or more rows of the fluid guide blade groups of the first and second blade structures are provided, and a plurality of sets of the first and second blade structures are provided in the casing. Means such as incorporation may be taken. Further, the pressure of the fluid can be increased by arranging a plurality of the fluid pumping devices P of the above embodiment in series.

In the above embodiment, the first and second blade structures each have two rows of fluid guide blade groups. However, the first and second blade structure members of the fluid guide blade group have the same structure. The number of columns may be different from each other. The present invention is not limited to the above embodiment at all, and each component can be appropriately designed and changed as needed. In short, the first having a plurality of stages of fluid guide vanes fitted to each other,
Any fluid pumping device that combines the second blade structure and utilizes the compression action of each fluid guide blade is included in the present invention.

[0018]

According to the first and second aspects of the present invention , an inflow portion is provided at the center of the first disk.
The fluid guide vanes are spaced apart from each other on the inner surface of the first disk.
The fluid guide vanes arranged around the entire circumference
First feathers arranged concentrically with a gap between each other
A root structure and an inflow portion in the center of the second disk;
Fluid guide vanes are spaced at a predetermined distance from each other on the inner surface of the second disk.
Fluid guide vanes arranged over the entire circumference
The second blade structure which is arranged concentrically with a gap in between
The structure and at least one set of first and second blade structures.
Insert each fluid guide blade group into the gap on the mating side
Cases housed together and having fluid inflow and outflow
And the first and second blade structures are provided with respective flow paths.
Do not tilt the tip of the body guide blade in the direction opposite to the rotation direction.
And the first and second blade structures rotate in opposite directions to each other.
Rolling the inlet of the casing and the first and second disks.
The fluid flowing from each inlet is pressurized to
Since the fluid is pumped from the outlet of the ring , the fluid can be pumped while gradually pressurizing the fluid with a simple structure, and the fluid pumping device which can reduce the manufacturing cost and the maintenance cost can be provided. .

Further, according to the third aspect of the present invention,
Then, in the invention described in claim 1 or claim 2,
Plural sets of the first and second blade structures are housed in the casing.
The flow to be pumped with the fluid pressure even higher
A body pumping device can be provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a fluid pumping device of the present invention.

FIGS. 2A and 2B are views showing a first blade structure of the fluid pumping device shown in FIG. 1, wherein FIG. 2A is a plan view and FIG.

FIGS. 3A and 3B are diagrams showing a second blade structure of the fluid pumping device shown in FIG. 1, wherein FIG. 3A is a plan view and FIG.

FIG. 4 is a sectional view of the fluid pumping device shown in FIG. 1 taken along the line IV-IV.

[Explanation of symbols]

 P Fluid pumping device 1 First disk 2 Inflow section 2A Inflow port 3 Fluid guide blade group 4 First blade structure 5 Second disk 6 Inflow section 6A Inflow port 7 Fluid guide blade group 8 Second blade structure 9 Casing 9A Inlet 9B Outlet 31 Fluid guide vane 71 Fluid guide vane

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F04D 11/00 F04D 13/14 F04D 1/08

Claims (3)

(57) [Claims] The method according to claim 1 the first flow body guide blades of fluid guide vanes are arranged over the entire circumference at a predetermined distance from each other on the inner surface of the disc and having an inlet at the center of the first disc A plurality of first blade structures arranged concentrically with a gap therebetween and an inflow portion at the center of the second disk, and fluid guide blades are provided on the inner surface of the second disk at predetermined intervals in a circumferential direction. a second blade structure is formed by arranging plural flow body guide blades arranged along the entire circumference with a gap concentrically to each other, first at least one set of second blade structures each fluid A casing having a guide blade group fitted into the gap on the other side and assembled and housed therein, and having a fluid inflow / outlet port, wherein the first and second blade structures are provided with respective flow paths.
Do not tilt the tip of the body guide blade in the direction opposite to the rotation direction.
And the first and second blade structures rotate in opposite directions to each other to pressurize the fluid flowing from the inlet of the casing and the inlets of the first and second disks. A fluid pumping device, wherein the fluid is pumped from an outlet of the casing. 2. A method according to claim 1, characterized in that it comprises a first drive source for rotating in opposite directions the second blade structure
Fluid pumping apparatus according to. 3. A first, according to claim 1 or a second blade structure is characterized in that plural sets housed in the casing
The fluid pumping device according to claim 2 .