Abstract: A design method of a center guide pin includes a step of setting a virtual center axis of a casing, a step of acquiring a center position of the center guide pin in a horizontal direction, a step of acquiring, as a first offset amount, an offset amount of the center position of the center guide pin from the virtual center axis of the casing in the horizontal direction, a step of setting a virtual center axis of a diaphragm, a step of acquiring a center position of a groove portion in the horizontal direction, a step of acquiring, as a second offset amount, an offset amount of the center position of the groove portion from the virtual center axis of the diaphragm in the horizontal direction, and a step of designing the center guide pin based on the first offset amount and the second offset amount.

Abstract: A design method of a center guide pin includes a step of setting a virtual center axis of a casing, a step of acquiring a center position of the center guide pin in a horizontal direction, a step of acquiring, as a first offset amount, an offset amount of the center position of the center guide pin from the virtual center axis of the casing in the horizontal direction, a step of setting a virtual center axis of a diaphragm, a step of acquiring a center position of a groove portion in the horizontal direction, a step of acquiring, as a second offset amount, an offset amount of the center position of the groove portion from the virtual center axis of the diaphragm in the horizontal direction, and a step of designing the center guide pin based on the first offset amount and the second offset amount.

Abstract: The measuring jig for the rotary machine is a measuring jig for a rotary machine including a casing that extending about an axis, a rotor that is disposed in the casing and extends in an axial direction about the axis, and a plurality of bearings that are disposed at intervals in the axial direction and supports the rotor in the casing. The measuring jig includes a plurality of casing fixing portions that are respectively attachable to and detachable from bearing holding portions to which the bearings are attached in the casing; a main member that extends in the axial direction so as to connect the plurality of casing fixing portions to each other; an arm that extends from the main member in an orthogonal direction orthogonal to the axial direction; and a reference surface that is disposed at a distance from a measurement target part of the casing.

Abstract: A probe device includes a probe that detects a state of a rotary shaft, a probe holding member having a first end fixed to a bearing portion, in which the probe is fixed to the first end, a cylindrical guide sleeve inserted into a communication hole of a casing, a second end of the probe holding member being inserted into the cylindrical guide sleeve, and a plurality of elastic support members disposed at an interval in an extending direction of the probe holding member between the second end of the probe holding member and an inner peripheral surface of the guide sleeve, and formed of an elastic material to form an annular shape extending along an outer peripheral surface of the probe holding member.

Abstract: The measuring jig for the rotary machine is a measuring jig for a rotary machine including a casing that extending about an axis, a rotor that is disposed in the casing and extends in an axial direction about the axis, and a plurality of bearings that are disposed at intervals in the axial direction and supports the rotor in the casing. The measuring jig includes a plurality of casing fixing portions that are respectively attachable to and detachable from bearing holding portions to which the bearings are attached in the casing; a main member that extends in the axial direction so as to connect the plurality of casing fixing portions to each other; an arm that extends from the main member in an orthogonal direction orthogonal to the axial direction; and a reference surface that is disposed at a distance from a measurement target part of the casing.

Abstract: A probe device includes a probe that detects a state of a rotary shaft, a probe holding member having a first end fixed to a bearing portion, in which the probe is fixed to the first end, a cylindrical guide sleeve inserted into a communication hole of a casing, a second end of the probe holding member being inserted into the cylindrical guide sleeve, and a plurality of elastic support members disposed at an interval in an extending direction of the probe holding member between the second end of the probe holding member and an inner peripheral surface of the guide sleeve, and formed of an elastic material to form an annular shape extending along an outer peripheral surface of the probe holding member.

Abstract: A steam valve includes a valve body having a valve seat in a steam channel, a valve stem configured to close the steam channel by coming in contact with the valve seat and to open the steam channel by moving from the valve seat and a guide portion configured to slidably guide the valve stem in a moving direction thereof. The guide portion has a guide body that encloses the valve stem from a radial outer side of the valve stem and a guide bush that is detachably fixed inside the guide body, has an inner surface which abuts and slides on an outer circumferential surface of the valve stem, and is formed of a material having corrosion resistance.

Abstract: A steam valve includes a valve body having a valve seat in a steam channel, a valve stem configured to close the steam channel by coming in contact with the valve seat and to open the steam channel by moving from the valve seat and a guide portion configured to slidably guide the valve stem in a moving direction thereof. The guide portion has a guide body that encloses the valve stem from a radial outer side of the valve stem and a guide bush that is detachably fixed inside the guide body, has an inner surface which abuts and slides on an outer circumferential surface of the valve stem, and is formed of a material having corrosion resistance.

Abstract: A wafer (22) is placed on an upper surface of a holder body (23), and the holder body is inserted into a plurality of holder-aimed concave recesses (14) formed on supporters (12) accommodated in a heat treatment furnace such that the holder body is held horizontally. The holder body is formed into a disk shape free of recessed cut portions, and the holder body is formed with an upwardly projecting ring-like projection (24) extending in the circumferential direction of the holder body around the axis of the holder body. The wafer holder is constituted such that the wafer is placed on the holder body while contacting with the upper surface of the projection, and such that the outer diameter of the projection is formed to be in a range of 0.5D to 0.98D wherein D is the diameter of the wafer, so that the outer periphery of the wafer is kept from contacting with the projection. Occurrence of slips in the wafer is restricted by preventing warpage of the holder body upon fabricating the holder body.