KR101229575B1 - Reaction type turbine and manufacturing method of the same - Google Patents

Abstract

PURPOSE: A reaction-type turbine and a manufacturing method thereof are provided to reduce vibration as a rotary shaft is precisely fitted into the center of a housing. CONSTITUTION: A reaction-type turbine(100) comprises a rotary shaft(110), rotary member(120), and a housing member(130). One or more rotary members are connected to the rotary shaft and rotate the rotary shaft by distributing a working fluid in a circumferential direction. The housing member accommodates the rotary member and is rotationally supported to the rotary shaft. The housing member is divided into first and second housings from the rotary shaft.

Description

Reaction type turbine and manufacturing method of the same

The present invention relates to a reaction turbine device, and more particularly to a reaction turbine device for generating a rotational force by using steam, gas or compressed air and a manufacturing method thereof.

Steam turbines are one of the prime movers that convert the thermal energy of steam into mechanical work. Steam turbines are widely used as a main engine for thermal power generation and shipbuilding because of their low vibration, high efficiency, high speed and high horsepower.

In Korean Patent No. 10-1052253 (published on April 15, 2009), a reaction type turbine is described. Unlike a conventional turbine, a reaction type turbine ejects working fluid from the rotors to the outside, and the rotor rotates by the repulsive force.

Meanwhile, as shown in FIG. 1 of Korean Patent Registration 10-1052253, a plurality of injection rotation parts 120A, 120B, and 120C should be manufactured by sequentially coupling the turbine shaft 130 to each other, as shown in FIG. 17. Similarly, in the state in which the rotors 240, 250, and 260 are assembled to the turbine shaft 280, the housings 210, 220, and 230 may not be coupled to the turbine shaft 280, so that the housing is manufactured in a divided form, and then the rotor and the housing. It shall be assembled by inserting one by one. Accordingly, since the assembly is not easy, there is a problem that it is not easy to align the axis center of the whole part.

It is an object of the present invention to provide a reaction turbine device having an improved structure to facilitate assembly and a method of manufacturing the same.

Reaction type turbine apparatus according to the present invention for achieving the above object, the rotating shaft, coupled to the rotating shaft and at least one rotating member for rotating the rotating shaft injecting the working fluid in the circumferential direction, and the rotating member It is formed to accommodate the rotatably supported on the rotating shaft, and comprises a housing member formed to be divided into a first housing and a second housing around the rotation axis, wherein the first housing and the second housing is formed At least one partition wall part formed at a predetermined interval within the body part so as to form a body part and at least one unit space part integrally formed with the body part to accommodate the one rotation member; and the body part and the partition wall At least a portion of each of the rotating shafts is formed to be inserted into a portion to which the rotating shaft is coupled; The wrap comprises a penetration.

In addition, the reaction turbine device manufacturing method according to an embodiment of the present invention comprises the steps of providing the first housing and the second housing consisting of the body portion and the partition wall, and the first housing and the second housing Fastening, forming the through part in the first housing and the second housing, forming a fastening hole through the first extension part and the second extension part, and the first housing and the second housing part. Separating the housing, coupling the rotating member to the rotating shaft, assembling the first housing and the second housing to the assembly in which the rotating shaft and the rotating member are coupled, and a fastening member penetrating the fastening hole. And installing the first housing and the second housing to fasten the second housing.

In addition, the reaction turbine device manufacturing method according to another embodiment of the present invention comprises the steps of molding the first housing and the second housing consisting of the body portion, the partition portion and the through portion, and the first extension portion and Comprising the step of finishing the surface in contact with the second extension, the step of fastening the first housing and the second housing, the step of completing the processing through the first housing and the second housing, the first extension Forming an assembly reference hole and a fastening hole penetrating the part and the second extension part, separating the first housing and the second housing, forming an assembly by coupling a rotating member to the rotating shaft, and Assembling the assembly to one of the first housing and the second housing, and then assembling the other of the first housing and the second housing, and inserting an assembly reference member into the assembly reference hole. 2 ha By installing and aligning the studs, the fastening member penetrating the coupling hole and a step of fastening the first and second housings.

In the reaction turbine device according to the present invention, the first housing and the second housing are formed integrally with the body portion and the partition wall, in the process of fastening the first housing and the second housing after assembling the rotating member on the rotating shaft. The rotating shaft can be fastened in a state exactly positioned at the center of the housing member. That is, since the assembling work can be easily performed, not only the assembly time can be reduced, but also the assembly can be performed in a state where the rotation axis is accurately and quickly aligned by arranging the rotating shafts formed in the first and second housings. Accordingly, it is possible to reduce vibration in operation and to reduce leakage loss of the working fluid.

In addition, in the reaction turbine device manufactured by the reaction turbine device manufacturing method according to the present invention, since the housing member is made of one member in which the partition and the body are integrated, the structure is more robust than the structure in which a plurality of components are combined. Therefore, since tolerances generated in the process of assembling a plurality of parts can be minimized, the rotation shaft can be more accurately positioned at the center of the housing member.

1 is a cross-sectional view of a reaction turbine device according to a preferred embodiment of the present invention;
Figure 2 is a cross-sectional view showing a state of five rotating members in the reaction turbine device shown in FIG.
3 is a view showing a method of forming a sealing member according to a modification in the reaction turbine device shown in FIG.
4 is a perspective view showing only the housing member in the reaction turbine device shown in FIG.

The present invention will now be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same components, and repeated descriptions and detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted. Embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

Referring to FIG. 1, the reaction turbine device 100 according to an exemplary embodiment of the present invention includes a rotating shaft 110, a rotating member 120, and a housing member 130.

The rotating shaft 110 is a shaft of a specific length. The rotating shaft 110 is disposed to penetrate the housing member 130 to be described later. When the reaction turbine device 100 is applied to a generator, the electromagnet included in the generator may be coupled to the rotating shaft 110 to produce electricity. In addition, when the reaction turbine apparatus 100 is applied to a power plant, it is also possible to couple a belt or a gear to the rotary shaft 110.

The rotary member 120 is coupled to the rotary shaft 110 to rotate the rotary shaft 110 in accordance with the spraying the working fluid in the circumferential direction. The rotating member 120 is coupled to the rotating shaft 110 to rotate the rotating shaft 110 as the working fluid is injected to the outside. The rotating member 120 may have a flow path formed therein to allow the introduced working fluid to be discharged to the circumferential surface.

The housing member 130 is formed to accommodate the rotating member 120 and supports the rotating shaft 110 to be rotatable. The housing member 130 is formed to be divided into a first housing 131 and a second housing 132 about the rotation shaft 110. One inlet of the housing member 130 is formed with an inlet 139a opened to allow the working fluid to flow therein. The other part of the housing member 130 is formed with a discharge portion (139b) for discharging the working fluid. The housing member 130 is rotatably coupled to the rotating shaft 110 to be retracted. Bearings may be installed at portions where the housing member 130 and the rotation shaft 110 contact each other.

In the reaction turbine device 100 according to the present invention, the first housing 131 and the second housing 132 include a body portion 133, a partition 134, and a through portion 136. The inner space is formed in the body portion 133. The body portion 133 forms an outer shape of the housing member 130. The partition 134 is integrally formed with the body 133. The partition 134 is formed at a predetermined interval inside the body 133. Accordingly, the unit space portion 135 is formed between the partition walls 134, and one rotating member 120 is accommodated in one unit space portion 135. The through part 136 is formed to surround at least a part of the rotation shaft 110. The through part 136 is formed to be introduced into a portion in which the rotation shaft 110 is coupled to each of the body part 133 and the partition wall part 134. In addition, a bearing may be interposed between the through part 136 and the rotation shaft 110. The bearing allows the rotating shaft 110 to rotate smoothly while the housing member 130 is stopped.

In the reaction turbine device 100 according to an embodiment of the present invention as described above, the first housing 131 and the second housing 132 is integral with the body portion 133 and the partition wall portion 134. Since the rotation shaft 110 is formed at the center of the housing member 130 in the process of fastening the first housing 131 and the second housing 132 after assembling the rotation member 120 to the rotation shaft 110. It can be tightened in the exact position. That is, since the assembling work can be easily performed, not only the assembly time can be reduced, but also the center of the rotation shaft 110 is disposed on the through part 136 formed in the first housing 131 and the second housing 132. Assembly can be done with accurate and fast alignment. Accordingly, it is possible to reduce vibration in operation and to reduce leakage loss of the working fluid.

On the other hand, the number of the unit space portion 135 may be made larger than the number of the rotating member 120. For example, the number of unit spaces 135 may be five, and the number of rotating members 120 may be four. Unlike this, when the number of unit spaces 135 is the same as the number of rotating members 120, the housing member 130 includes the number of unit spaces 135 corresponding to the number of rotating members 120. Several types should be manufactured. That is, by manufacturing the housing member 130 with a plurality of molds according to the number of the rotating member 120, the manufacturing cost can be increased. However, the reaction turbine device 100 according to the present invention having the structure as described above can be used by manufacturing a housing member 130 including a plurality of unit spaces 135 in one mold and commonly used, manufacturers By adding or removing the rotating member 120 according to the design of the reaction turbine device 100 can be easily manufactured.

On the other hand, the reaction turbine device 100 of the present invention may further include a sealing member 150. The sealing member 150 is disposed to maintain a state in close contact with the rotating member 120 at the free end of the partition 134. The sealing member 150 allows the working fluid to stably flow into the adjacent rotating member 120 without being lost.

On the other hand, referring to Figure 3, as a modification of the sealing member may be made integrally with the partition 134. The aforementioned sealing member 150 (refer to FIG. 2) is manufactured separately from the partition 134 and then coupled to each other. However, the sealing member 250 according to the modified example is formed integrally with the partition wall portion 134. That is, the sealing member 250 may also be manufactured while manufacturing the housing member 130 including the body portion 133 and the partition wall portion 134. By such a structure, the assembly time can be shortened by not having to perform the process of coupling the sealing member to the partition 134 in the assembling process. As an example of a method of processing the sealing member 250 according to this modification, a plurality of protrusions may be formed at the end of the partition 134, the sharp end of the protrusions may be ground, but is not limited to this method. .

Meanwhile, referring back to FIG. 1, as an example of a detailed structure of the reaction turbine device 100 of the present invention, the first housing 131 further includes a first extension part 137, and the second housing 132. It further includes a second extending portion 138, the housing member 130 may further include a fastening member not shown.

The first extension part 137 protrudes to a specific thickness from the circumferential surface of the portion of the first housing 131 which is in contact with the second housing 132.

The second extension portion 138 is formed in the second housing 132, the second housing 132 protrudes from the circumferential surface of the portion in contact with the second housing 132 to a specific thickness, and thus the first housing 131. And the second housing 132 are in contact with the first extension part 137.

Referring to FIG. 4, the fastening member fastens the first extension part 137 and the second extension part 138. One example of the fastening member may be made of a bolt and a nut. Here, at least one fastening hole 139c may be formed in each of the first extension part 137 and the second extension part 138. The bolt passes through the fastening holes 139c to allow the first extension part 137 and the second extension part 138 to be fastened.

By the first extension part 137 and the second extension part 138 and the fastening member, the reaction turbine device 100 can be easily assembled, and in case of repair, the fastening member is released to react. Work such as cleaning or repairing the interior of the type turbine device 100 can be easily performed.

Hereinafter, a method of manufacturing a reaction turbine device having the above-described structure will be described.

First, the first housing and the second housing, which are integrally formed with the body portion and the partition wall portion, are provided. As an example of a method of providing the first housing and the second housing, a method such as casting into a mold may be used. In the method of manufacturing a reaction turbine device according to the present invention, since the body part and the partition wall part may be integrally formed at one time, the manufacturing time may be shorter than when the body part and the partition wall part are separately manufactured and combined. In this step, only the body part and the partition wall part are integrally formed, and the through part is not formed.

Next, the first housing and the second housing are fastened. The first housing and the second housing may be temporarily fastened using a fixing jig. Since the fixing jig may be a general device for fixing two members, detailed description thereof will be omitted.

Next, the through part is formed in the first housing and the second housing. A through part through which the rotating shaft penetrates while the first housing and the second housing are engaged is formed. In the forming of the penetrating portion in the first housing and the second housing, the penetrating portion may be formed by boring. Boring is to fix an object to a boring machine and rotate the cutting tool to form a hole in the object. Since the boring process can accurately form the through-hole in the housing member, it may be easy to accurately position the rotating shaft in the center of the housing member in the assembly process of the housing member and the rotating shaft later.

Next, a fastening hole penetrating the first extension part and the second extension part is formed. Since the fastening hole has been described above, a detailed description thereof will be omitted.

Next, the first housing and the second housing is separated. In this step, the first housing and the second housing temporarily separated by the fixing jig are separated.

Next, the rotating member is coupled to the rotating shaft. The rotating member is fixedly coupled to the rotating shaft. Spacers may be interposed between the rotating members. Spacers allow the rotating members to achieve a predetermined interval. The spacer may be formed integrally with the rotating shaft.

Next, the first housing and the second housing are assembled to the assembly in which the rotating shaft and the rotating member are coupled to each other. In this step, since the assembly is made in a state in which the rotating shaft is positioned in the penetrating portion formed in the first housing and the second housing, the rotating shaft can be accurately positioned at the center of the housing member.

Finally, a fastening member penetrating the fastening hole is installed to fasten the first housing and the second housing. The first housing and the second housing are not separated by the fastening member so as to maintain a stably coupled state. Since the fastening member for this is described above, a detailed description thereof will be omitted.

In the reaction turbine device manufactured by the above method, the housing member is made of a single member in which the partition wall and the body are integrated, and thus the structure is more robust than the structure in which a plurality of components are combined. Therefore, since tolerances generated in the process of assembling a plurality of parts can be minimized, the rotation shaft can be more accurately positioned at the center of the housing member.

On the other hand, another example of the reaction turbine device manufacturing method described above will be described.

First, the first housing and the second housing, which are integrally formed with the body portion, the partition wall portion, and the through portion, are formed.

Next, the surface which the said 1st extension part and the 2nd extension part contact is completed. In this step, the respective surfaces in contact with the first extension portion and the second extension portion are processed to be in close contact with each other without being spaced apart.

Next, the first housing and the second housing are fastened. In this step, the first housing and the second housing may be fastened by using a separate fixing jig as in the aforementioned reaction turbine device manufacturing method.

Next, the through part is completed in the first housing and the second housing. In this step, the through portion may be formed by boring as in the above-described method of manufacturing the reaction turbine device.

Next, an assembly reference hole and a fastening hole penetrating the first extension part and the second extension part are formed. Here, the assembly reference hole may use some of the fastening holes. For example, one of the two to three fastening holes may be an assembly reference hole.

Next, the first housing and the second housing is separated. Remove the fixing jig fixing the first housing and the second housing and separate the first housing and the second housing.

Next, the rotating member is coupled to the rotating shaft to form an assembly.

Next, after assembling the assembly to one of the first housing and the second housing, the other of the first housing and the second housing is assembled.

Next, the assembly reference member is inserted into the assembly reference hole to align the first housing and the second housing.

Finally, a fastening member penetrating the fastening hole is installed to fasten the first housing and the second housing.

Reaction turbine device manufacturing method according to another embodiment of the present invention as described above using the assembly reference hole and the assembly reference member in the process of assembling the first housing and the second housing forming the outer shape of the reaction turbine device. Tolerances generated during the assembly process may be further minimized than in the above-described reaction turbine device manufacturing method.

Meanwhile, inserting an assembly reference member into the assembly reference hole to align the first housing and the second housing, and installing a fastening member penetrating the fastening hole to fasten the first housing and the second housing. It demonstrates in more detail.

First, the assembly reference member is inserted into the fastening hole that becomes the assembly reference hole. Next, the first and second housings are fastened by installing fastening members in the remaining fastening holes except for the fastening holes which become the assembly reference holes. Next, the assembly reference member is removed from the fastening hole that becomes the assembly reference hole. Finally, the fastening member is installed in the fastening hole that becomes the assembly reference hole to complete the fastening of the first housing and the second housing.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

100: reaction type turbine device 110: rotating shaft
120: rotating member 130: housing member
131: first housing 132: second housing
133: body portion 134: partition wall
135: unit space portion 136: through portion
137: first extension 138: second extension
139: inlet

Claims (9)

A rotating shaft;
At least one rotating member coupled to the rotating shaft to rotate the rotating shaft as spraying a working fluid in a circumferential direction; And
And a housing member formed to receive the rotating member and rotatably supported by the rotating shaft, the housing member being divided into a first housing and a second housing about the rotating shaft.
The first and second housings are:
A body part having an inner space formed therein;
At least one partition wall part formed at a predetermined interval within the body part so as to be integrally formed with the body part to form at least one unit space part in which the one rotation member is accommodated; And
A through portion formed at each of the body portion and the partition wall portion to be inserted into a portion to which the rotating shaft is coupled and surrounding at least a portion of the rotating shaft;
Reaction turbine device comprising a. The method of claim 1,
The first housing further includes a first extension part protruding to a specific thickness from a circumferential surface of the portion in contact with the second housing,
The second housing further protrudes from the circumferential surface of the portion in contact with the second housing to a specific thickness to further contact the first extension portion in a state in which the first housing and the second housing are coupled to each other. Include,
The housing member further comprises a fastening member for fastening the first extension portion and the second extension portion. 3. The method according to any one of claims 1 to 3,
Reaction turbine apparatus, characterized in that the number of the unit space portion is larger than the number of the rotating member. 3. The method according to any one of claims 1 to 3,
The free end of the partition wall reaction turbine device characterized in that it further comprises a sealing member arranged to keep in close contact with the rotating member. 5. The method of claim 4,
Reaction turbine device, characterized in that the sealing member is formed integrally with the partition wall. In the reaction turbine device manufacturing method for producing a reaction turbine device having a structure according to claim 2,
Providing the first housing and the second housing in which the body portion and the partition wall portion are integrally formed;
Fastening the first housing and the second housing;
Forming the through part in the first housing and the second housing;
Forming a fastening hole penetrating the first extension part and the second extension part;
Separating the first housing and the second housing;
Coupling a rotating member to the rotating shaft;
Assembling the first housing and the second housing to the assembly in which the rotating shaft and the rotating member are coupled; And
Fastening the first housing and the second housing by installing a fastening member penetrating the fastening hole;
Reaction turbine device manufacturing method comprising a. In the reaction turbine device manufacturing method for producing a reaction turbine device having a structure according to claim 2,
Molding the first housing and the second housing in which the body portion, the partition wall portion, and the through portion are integrally formed;
Comprising the step of contacting the first extension portion and the second extension portion complete surface;
Fastening the first housing and the second housing;
Completing the through part in the first housing and the second housing;
Forming an assembly reference hole and a fastening hole penetrating the first extension part and the second extension part;
Separating the first housing and the second housing;
Coupling a rotating member to the rotating shaft to form an assembly;
Assembling the assembly to one of the first housing and the second housing, and then assembling the other of the first housing and the second housing;
Inserting an assembly reference member into the assembly reference hole to align the first housing and the second housing; And
Fastening the first housing and the second housing by installing a fastening member penetrating the fastening hole;
Reaction turbine device manufacturing method comprising a. 8. The method according to any one of claims 6 to 7,
In the forming of the through part in the first housing and the second housing,
Reaction turbine device manufacturing method characterized in that for forming the through portion by boring (boring) processing. The method of claim 7, wherein
The assembly reference hole uses a part of the fastening hole,
Inserting an assembly reference member into a fastening hole that becomes an assembly reference hole;
Fastening the first housing and the second housing by installing a fastening member in the remaining fastening holes except for the fastening hole which becomes an assembly reference hole;
Removing the assembly reference member from the fastening hole that becomes the assembly reference hole;
Installing a fastening member in a fastening hole that becomes an assembly reference hole;
Reaction turbine device manufacturing method comprising a.

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