KR20160134382A - Pimpulse type turine system with independent wings - Google Patents

Abstract

The present invention relates to an impulsive turbine system with independent blades. The turbine system with independent blades according to the present invention comprises: a rotation body which is formed in a disc shape, and is provided with a plurality of blades in a circumferential direction colliding with operation fluid at the edge portion thereof; a housing which is provided with an inner space for installing the rotation body therein, and is provided with an inlet for inflow of the operation fluid and an outlet for outflow of the operation fluid; and a power generator which is connected to the rotation body through a driving shaft, wherein the blades include an inner blade and an outer blade formed outside the inner blade, and the outer blade is provided with an inclined surface which scatters the colliding operation fluid toward the inner blade. According to the present invention, it is possible to provide an impulsive turbine system with independent blades to improve power generation efficiency even in a condition with less evaporation amount of the operation fluid.

Description

{PIMPULSE TYPE TURINE SYSTEM WITH INDEPENDENT WINGS}

The present invention relates to an impulsive turbine system of a stand-alone impeller, and more particularly, to an impulse turbine system of a stand-alone impeller having a simple structure, preventing the formation of an internal back pressure, Gt; turbine < / RTI >

Turbine is a machine that converts the energy of fluids such as water, gas, and steam into useful mechanical work. Generally, a turbomachine is a turbine in which several blades or wings are placed on the circumference of a rotating body, and steam or gas is blown thereon to rotate the rotor at a high speed.

It is the hydro turbine that drops water at high altitudes and passes it through the runner runner to convert the flow energy into mechanical work. It is the steam turbine that uses the steam energy to blow the steam from the nozzle and hit it against the wing . Steam turbines include impulsive and recirculating turbines and mixed turbines that combine the advantages of both.

In this connection, Korean Patent Registration No. 1033324 discloses an axial-flow type multistage turbine, and Korean Patent Publication No. 1033324 discloses a turbine comprising a housing having an inlet port and a discharge port to allow fluid to flow therein, A front impeller which is provided on the rotating shaft and has a plurality of through holes penetrating the fluid to guide the fluid backward through the fluid; and a front impeller fixed to the rotating shaft behind the front impeller, And at least one rear impeller having a rear outlet formed at an end of the guide groove to generate a rotational force by discharging fluid flowing along the guide groove to the rear.

Korean Patent Publication No. 1389013 discloses a reaction-type turbine system, and Japanese Patent Publication No. 1389013 discloses a turbine system having an inlet through which a working fluid flows; A plurality of jetting portions for rotating the turbine shaft by a reaction generated by jetting the working fluid introduced from the inlet in a radial direction of the turbine shaft and jetting the jetted fluid in a circumferential direction; And a plurality of blades which rotate integrally with the plurality of jetting portions while being rotated by a working fluid which is arranged to be spaced apart from the discharge side of the jetting portion of the jetting portion, And a lifting blade which is located at a side opposite to the rotating direction of the turbine shaft and rotates by lifting force generated when the working fluid is injected.

However, conventional turbines including Korean Patent Publication Nos. 1033324 and 1389013 have a problem that sufficient efficiency is obtained only under a condition of large evaporation amount as a large capacity, and the structure is complicated and various problems such as frequent breakage of blades due to internal back pressure .

The conventional turbines including Korean Patent Publication Nos. 1033324 and 1389013 are characterized in that the axial flow turbine flowing along a tunnel formed by elongated working fluid in the direction of the driving shaft is a main type, There is a problem that the efficiency is reduced due to the resistance due to the back pressure caused by the fluid.

On the other hand, in the impulsive turbine, due to the structure in which a plurality of blades can not be arranged, the working fluid is flowed in an axial flow to mix the impulsive type and the recoil type in order to overcome the limit of the rotational force, Resistance and many other obstacles are occurring.

(0001) Korean Patent Registration No. 1033324 (Registered on April 28, 2011) (0002) Korean Patent Registration No. 1389013 (Registered on April 4, 2014)

SUMMARY OF THE INVENTION An object of the present invention is to provide an impulsive turbine system of a stand-alone wing, which is simple in structure, prevents the formation of an internal back pressure, and is capable of improving power generation efficiency even under a condition in which the amount of evaporation of a working fluid is small.

According to an aspect of the present invention, there is provided a scroll fluid machine comprising: a rotating body formed in a disk shape and having a plurality of blades along a circumferential direction, A housing defining an inner space in which the rotating body is installed and having an inlet through which the working fluid flows and an outlet through which the working fluid flows; And a generator connected to the rotating body and a drive shaft, wherein the wing includes an inner wing and an outer wing formed outside the inner wing, and the outer working wing is splashed with the collided working fluid toward the inner wing Wherein the inclined surface is formed on the surface of the impeller.

The rotator including: a loader coupled to the rotation center of the drive shaft and defining a rim portion to which the inner wing is coupled; And a pair of annular seal plates each extending from both sides of a rim portion of the loader and between which the outer wing is engaged, wherein the annular seal plate is provided with an inner wall Can be minimized.

The outer wings are formed in a smaller number than the inner wings so that the vibration and noise due to impact and scattering of the working fluid are reduced, and a gap through which the working fluid moves is formed between the inner wing and the outer wing .

Wherein the housing has a plurality of the inner space, the inlet and the outlet, the rotating body is coupled in a plurality of along the longitudinal direction of the drive shaft, the inlet and the outlet include inlet pipes through which a working fluid flows, And the outflow pipes to be connected may be connected in parallel.

The inner space may be formed in an elliptical shape, and the rotating body may be eccentrically installed in the inner space toward the inlet port so that a working fluid colliding with the vane may expand from the outlet port.

According to the present invention, it is possible to provide an impulsive turbine system of a stand-alone impeller capable of improving the power generation efficiency even under a condition that the evaporation amount of the working fluid is small by forming a sloped surface that splashes the working fluid impinging on the outer impeller toward the inner impeller .

In addition, the rotating body is coupled in plural along the longitudinal direction of the drive shaft, and the inlet pipe and the outlet pipe are connected in parallel to the inlet pipe through which the working fluid flows and the outlet pipe through which the oil flows, It is possible to provide an impulsive turbine system of a stand-alone wing configured to be prevented.

1 is a cross-sectional side view of an impulse turbine system of a stand alone wing according to one embodiment of the present invention.
2 is a longitudinal cross-sectional view of the impulse turbine system of the stand-alone wing of FIG.
Figure 3 is a partial cross-sectional view of the housing seal block of the impulse turbine system of the stand-alone wing of Figure 1;
4 is a longitudinal cross-sectional view of an impulse turbine system of a stand-alone wing according to another embodiment of the present invention.
5 is a longitudinal cross-sectional view of a stand-alone impeller turbine system in which a generator according to another embodiment of the present invention is formed within a turbine housing.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

INDUSTRIAL APPLICABILITY The impulsive turbine system of a stand-alone impeller of the present invention has a simple structure, prevents formation of an internal back pressure, and improves power generation efficiency even under a condition that the evaporation amount of the working fluid is small.

1 is a cross-sectional view of an impulsive turbine system of a stand alone wing according to an embodiment of the present invention, Fig. 2 is a longitudinal section of the impulse turbine system of the stand-alone wing of Fig. 1, Fig. FIG. 4 is a longitudinal sectional view of an impulse turbine system of a stand-alone wing according to another embodiment of the present invention, and FIG. 5 is a longitudinal sectional view of a generator seal block of an impulse turbine system according to another embodiment of the present invention. Fig. 6 is a longitudinal cross-sectional view of a self-propelled turbine system of a stand-alone vane formed within a turbine housing.

As shown in FIGS. 1 and 2, the impulse turbine system 1 of the independent blade 12 according to the embodiment of the present invention is configured to be able to generate power even under a condition that the evaporation amount of the working fluid is small, (10), a housing (20) and a generator (30).

As shown in Figs. 1 and 2, the rotating body 10 is constituted to include a loader 11, a blade 12 and an annular seal plate 13, in which the working fluid is rotated by collision.

As shown in Figs. 1 and 2, the loader 11 is formed in a disk shape, and a drive shaft PS is coupled to the center thereof. The loader 11 is formed with a rim portion to which the wing 12 is coupled in the circumferential direction.

Although not shown in detail, a coupling hole is formed at the center of rotation of the loader 11 so that the driving shaft PS is inserted and coupled. In the turbine field, the coupling structure between the loader 11 and the drive shaft PS is a well-known technology, and a detailed description thereof will be omitted.

As shown in Figs. 1 and 2, the vanes 12 are formed in a plurality of along the rim portion of the loader 11 as a configuration in which the working fluid directly impacts. The wing 12 is composed of an inner wing 12A and an outer wing 12B.

The inner blade 12A may be formed in various shapes such as a rectangular plate and the like to form a rotational force due to the impact of the working fluid. The inner wing 12A may be designed integrally with the loader 11 at the time of designing the mold or may be coupled along the edge of the loader 11 after manufacture of the loader 11. [

As shown in Figs. 1 and 2, the outer blade 12B forms a rotational force due to a collision of a working fluid and guides the working fluid impinging on the inner blade 12A. The inner blade 12A, As shown in Fig.

1, the inner wing 12A forms a surface in the radial direction from the rotation center of the approximately loader 11 so that the impact force of the working fluid forms the maximum rotational inertia for rotating the loader 11, The outer blade 12B is formed to be closer to the inlet G1 toward the outer side and forms an inclined surface that splashes the impacted working fluid toward the inner blade 12A.

1, the working fluid impinging on the outer vane 12B is scattered and diffused toward the inner vane 12A, and the kinetic energy of the working fluid to be scattered and diffused is further transmitted to the inner vane 12A, The impact force transmitted from the fluid to the vane 12 is increased.

The wing 12 also obtains the rotational force by the injection pressure of the working fluid and the working fluid is circulated to the outlet G2 along the wing 12 which is accelerated and rotated by the working fluid to be scattered and dispersed, . The reference character GW denotes a guide vane GW installed on the inner wall of the housing 20 so that the discharged working fluid does not move toward the inlet G1.

Conventionally, the impulse turbine has a shape in which a guide wing is attached to a housing, but the guide wing attached to the housing has a disadvantage in reducing efficiency by forming a back pressure.

When the guide vane is installed in the passage circulating along the outer wall of the housing, the sprayed working fluid impinges on the blade and then is scattered to apply rotational force to the blade. However, the passage of the diffused gas is narrowed to form a back pressure, will be.

Although not shown in detail, the outer vane 12B may be formed in a saw blade shape, a hoe shape, a spatula shape, or the like within a range of approaching toward the inlet G1 toward the outer side.

Further, the outer vane 12B facilitates the working fluid to be discharged through the discharge opening round the inner space of the housing 20, so that the back pressure in the housing 20 can be further reduced.

As shown in Figs. 1 and 2, the annular seal plate 13 is configured to engage the outer wing 12B with the loader 11, .

The annular seal plate 13 is formed in a ring shape and is coupled along the rim portion of the loader 11 and extends in the radial direction of the loader 11 so that the inner wing 12A and the outer wing 12B are coupled do.

The annular seal plate 13 minimizes the gap between the inner wall of the housing 20 and the outer blade 12B so as to prevent the leakage of the working fluid and some of the scattered and diffused working fluid collides with the annular seal plate 13, the impact force transmitted from the working fluid to the wing 12 is further increased.

As shown in Figs. 1 and 2, the outer wings 12B are preferably formed in a smaller number than the inner wings 12A.

As described above, the outer blade 12B functions to directly scatter the impact force of the working fluid and to scatter and diffuse the impacted working fluid toward the inner blade 12A. Since the inclined surfaces on which the working fluid collides with each other form the inclination angle with the center of rotation of the loader 11, it is preferable that the inclined surfaces are formed in a smaller number than the inner vanes 12A.

As shown in FIGS. 1 and 2, a gap 12a through which the working fluid moves is preferably formed between the inner blade 12A and the outer blade 12B.

When the gap 12a is formed between the side vane 12A and the outer vane 12B, when the flow rate of the working fluid spouted from the inlet G1 fluctuates, the overdischarged working fluid flows through the inner vane 12A and the outer vane 12B So that noise and vibration due to fluctuations in the flow rate of the working fluid are prevented.

1 and 2, the housing 20 includes a first body 21, a second body 22, and a second body 22, which are configured to form an internal space 20S in which the rotating body 10 is installed. And a guide plate GP, and is manufactured in such a structure that it can be disassembled and assembled into a fastener B.

The housing (20) has an inlet (G1) through which the working fluid flows and an outlet (G2) through which the working fluid flows out.

2, the guide plate GP is configured to isolate the internal space 20S in the axial direction of the drive shaft PS, and is formed in the first body 21 and the second body 22, respectively, do.

The annular seal plate 13 and the inner wall of the housing 20 where the interval is minimized are formed by the inner wall of the first body 21 and the inner wall of the second body 22 and the inner wall of the guide plate GP.

As shown in Fig. 2, the body bearing block BB1 has a structure for rotatably supporting the end portion of the drive shaft PS, and is constructed so as to block the leakage of the working fluid.

The shaft bearing block BB2 has a structure detachable from the housing 20 and is fixed by a pair of supports 23.

The body bearing block BB1 and the shaft bearing block BB2 are well known in the field of turbines, and a detailed description thereof will be omitted.

1, the inner space 20S of the housing 20 is formed in an elliptical shape, and the rotating body 10 is formed so that the working fluid colliding with the vanes 12 is expanded in the inner space G2 20S to the inlet G1.

The working fluid injected from the inlet G1 is passed through the inner space 20S along the rotation direction of the vane 12 to the outlet G2 provided in the second body 22 and is discharged.

The rotating body 10 is eccentrically installed in the elliptical inner space 20S toward the inlet G1 so that the working fluid that rotates together with the vane 12 is expanded in volume toward the outlet G2, The back pressure is prevented from being formed on the side of the outlet G2 due to the volume expansion of the fluid.

3, the body seal block 90 is detachably coupled to the first body 21 and the second body 22 as a structure for blocking leakage of the working fluid in the housing 20 .

The spring protection cover 91 is provided inside the housing 20 to stop the rotation seal 92 and to prevent water leakage.

The spring tension bolt 93 is fastened to a rotation seal 92 for catching the leakage of the working fluid and the tension spring 94 pushes the rotation seal 92 inside the housing 20 to block leakage.

The shaft fixing coupling 95 is tightly fixed to the rotation seal 92 and fixedly attached to the spring protection cover 91 to block leakage.

The packing 96 and the shaft fixing coupling 95 intercept the leak from the inside to the drive shaft PS.

On the outside of the housing 20, the fixing liner seal 97 is pressurized by the fixing bolt 98 and is brought into close contact with the fixed seal 99 to block the leakage of water.

A cooling water jacket (WJ) is installed for cooling the block bearing.

As shown in FIG. 4, the generator 30 is configured to rotate by the rotational force of the rotating body 10 to produce electric power, and rotates in conjunction with the rotating body 10 by the driving shaft PS. The rotary shaft RS of the generator 30 is connected to the drive shaft PS by a coupling CR.

The rotating shaft separator S is formed on the drive shaft PS so that the generator 30 and the drive shaft PS on the side of the rotating body 10 can be separated.

4, the impulsive turbine system 2 of the independent wing 12 according to another embodiment of the present invention is characterized in that the rotating body 10 is arranged parallel to the longitudinal direction of the drive shaft PS .

Inside the housing 20, an internal space 20S is formed for each rotating body 10. The inner space 20S is formed by a plurality of guide plates GP attached to the first body 21 and the second body 22. [

A working fluid circulation pipe FT connected to the inlet G1 and the outlet G2 is formed in parallel with each other outside the housing 20 so that the working fluid flows into or out of the internal space 20S. Although not shown, an injection nozzle for injecting a working fluid is provided at the inlet G1.

Therefore, according to the present invention, since the working fluid flows in each inlet G1, each rotating body 10 independently forms a rotational force and forms a resultant force to rotate the driving shaft PS, , It is easy to perform maintenance, and the drawbacks of the prior art such as reduction in efficiency due to failure and resistance can be compensated.

5, the impulse turbine system 3 of the stand-alone vane 12 according to another embodiment of the present invention includes a generator 30 to prevent leakage of refrigerant and to reduce frictional force caused by the seal, Can be formed in the housing 20 in a buried form.

The generator 30 can be buried by using the working fluid at a relatively low temperature of 100 or less, and a separate cooling device is not shown but can be constructed from the outside.

The unshown magnetic bearing (MB) is a device for holding the shake of the drive shaft (PS), which can be used as a conventional off-the-shelf product or fixed with a general bearing

According to the present invention, by forming the inclined surface that splashes the working fluid impinging on the outer blade (12B) toward the inner blade (12A), the impulse of the independent blade (12) Thereby making it possible to provide an expression turbine system 1.

The rotating body 10 is coupled in plural along the longitudinal direction of the drive shaft PS and the inlet pipe through which the working fluid flows and the outlet pipe through which the working fluid flows are connected to the inlet G1 and the outlet G2 in parallel It becomes possible to provide an impulsive turbine system 2 of a stand-alone wing 12 whose structure is simple and which prevents the formation of an internal back pressure.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

1: turbine system 10: rotating body
20: housing 11: loader
20S: inner space 12: wing
G1: Inlet port 12A: Inner wing
G2: Outlet 12B: Outer wing
21: first body 12a: gap
22: second body 13: annular seal plate
B: fastener PS: drive shaft
GP: guide plate PSa: rotating shaft separator
FT: working fluid circulation pipe
30: generator
RS: Rotary shaft
CR: Coupling

Claims (5)

A rotating body formed in a disk shape and having a plurality of blades in a circumferential direction where a working fluid impinges on a rim portion;
A housing defining an inner space in which the rotating body is installed and having an inlet through which the working fluid flows and an outlet through which the working fluid flows; And
And a generator connected to the rotating body and the drive shaft,
The wing including an inner wing and an outer wing formed outside the inner wing,
Wherein the outer wing is formed with an inclined surface for scattering the collided working fluid toward the inner wing.
The method according to claim 1,
The rotating body includes:
A loader coupled to the center of rotation of the drive shaft and defining a rim portion to which the inner wing is coupled; And
And a pair of annular seal plates each extending from both sides of a rim portion of the loader and between which the outer wing is engaged,
Wherein the annular seal plate minimizes the spacing between the annular seal plate and the inner walls of the housing to prevent leakage of the working fluid.
3. The method of claim 2,
Wherein the outer wings are formed in a smaller number than the inner wings so as to reduce vibrations and noise caused by impact and scattering of the working fluid, and a gap through which the working fluid moves is formed between the inner wing and the outer wing Impulsive turbine system of independent wings.
The method of claim 3,
The housing has a plurality of the inner space, the inlet and the outlet,
Wherein the rotating body is coupled in plurality along the longitudinal direction of the drive shaft,
Wherein an inlet pipe through which the working fluid flows and an outlet pipe through which the working fluid flows are connected in parallel to the inlet port and the outlet port.
The method according to claim 1,
Wherein the inner space is formed in an elliptical shape,
Wherein the rotating body is eccentrically installed in the inner space toward the inlet so that a working fluid colliding with the vane is expanded at the outlet side of the impeller.

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