Reaction-type steam turbine
A steam turbine, reaction type technology, which is applied in the directions of engine working fluid, non-variable-capacity engine, mechanical equipment, etc., can solve the problem of inability to maximize the rotational output of the turbine shaft 20, inability to face the disc blades 30, and inability of steam to Smooth inflow and other problems, to achieve the effect of improving energy efficiency, reducing driving load, and increasing the rotational output of the turbine shaft
Inactive Publication Date: 2018-08-03
POSCO ENERGY CO LTD
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Problems solved by technology
[0010] After the steam injected through the steam injection pipe 11 flows into the turbine inlet 13, the direction should be changed to the right side in the accompanying drawings, towards the inflow hole 32 of the disc blade 30, but the steam flowing in through the steam injection pipe 11 is Turbine inlet 13 can't be towards disc blade 30, as image 3 shows that there is a problem with steam swirls appearing only at the turbine inlet 13 mentioned above
[0011] Therefore, there is a problem that the steam cannot smoothly flow into the disc blades 30, and thus the maximum rotational output of the turbine shaft 20 cannot be realized.
[0012] In addition, there is a problem that frictional energy loss is large due to the steam vortex phenomenon
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[0040] The terms or words used in this specification and claims are not limited to the usual or dictionary interpretations, and should be interpreted as suitable for the present invention in view of the principle that the inventor can properly define the terms and concepts in order to describe his invention in the best way. Technical thought meaning and concept.
[0041] Below, refer to the accompanying drawings Figure 4 to Figure 6 , the reaction steam turbine according to the preferred embodiment of the present invention will be described.
[0042] The technical feature of the reaction steam turbine is that a deflector vane is provided on the turbine shaft to change the direction of the straightly flowing steam to the disk blade side.
[0043] Such as Figure 4 As shown, the reaction steam turbine includes a casing 100 , a turbine shaft 200 , disk blades 300 and guide vanes 400 .
[0044] The casing 100 provides a space for rotating the disc blade 300 by the reaction for...
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The present invention relates to a reaction-type steam turbine. More specifically, the present invention relates to a reaction-type steam turbine that has guide blades mounted on a turbine shaft located between disk blades and a steam inlet tube to divert steam introduced into a housing from the steam inlet tube to the disk blades, thereby preventing a vortex phenomenon within the housing, and rotates the guide blades by means of the pressure of the introduced steam to rotate the turbine shaft, thereby reducing the initial load against the rotation of the turbine shaft and doubling the rotational output of the turbine shaft along with the rotation of the disk blades. To achieve this, provided is a reaction-type steam turbine that comprises: a housing having steam inlet and outlet tubes formed on opposite sides thereof, respectively, and having a space formed therein; and a turbine shaft installed to pass through the space of the housing and having a plurality of disk blades mounted thereon, wherein guide blades are shaft-coupled to the turbine shaft between the passage of the steam inlet tube and the disk blades to guide steam introduced into the space of the housing through the steam inlet tube to the disk blades.
Description
technical field [0001] The present invention relates to a reaction steam turbine, and more particularly, to a reaction steam turbine capable of maximizing energy output by preventing steam swirl in a casing and reducing an initial rotational load of a turbine shaft. Background technique [0002] The reaction steam turbine obtains rotational energy through the reaction of the exhausted steam energy, has a simple structure, and can obtain high thermal efficiency, so it is a turbine suitable for use as a small-to-medium-capacity power machine. [0003] For example, Korean Patent Publication No. 10-2012-47709 (publication date: 2012.05.14), Korean Publication Patent No. 10-2013-42250 (publication date: 2013.04.26) and Korean Registered Patent No. 10-1229575 (registered Day: 2013.01.29) disclosed turbine devices are all related to an embodiment of the reaction turbine device. [0004] figure 1 is a perspective view of a part of a cut-reaction steam turbine according to the prio...
Claims
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IPC IPC(8): F01D1/32F01D1/14F01D1/06F01D5/14
CPCF01D1/32F01D1/34F05D2220/31F05D2210/43F05D2250/51F05D2240/242F01D1/06F01D1/14F01D5/147
Inventor 李在俊李相勋吴星瑾李相明任周昌
Owner POSCO ENERGY CO LTD