Split type brush seal device, brush seal pieces, and method of assembling split type brush seal device

A split type brush seal device comprising:

• a plurality of brush seal pieces having bundled wire rods;
• and
• an attached member provided with a groove to which the plurality of brush seal pieces is attached in the circumferential direction, wherein:
• each of the brush seal pieces has a plate of arc shape to which the bundled wire rods are fixed,
• the attached member is provided with at least a screw hole which is opened at an inner periphery surface of the attached member and which has a center axis extending in a radial direction of the attached member, the screw hole being formed so as to be close to the plate but independent from the groove of the attached member,
• the split type brush seal device further comprises a bolt having a screw portion and a head portion having a diameter larger than that of the screw portion,
• the screw portion of the bolt is screwed into the screw hole of the attached member but not screwed into the plate,
• the plate is provided with a first recess portion which has an arc shape in a circumferential cross section and which is capable of engaging with part of an periphery surface of the head portion of the bolt,
• the diameter of the head portion has such a size that the head portion overlaps with the plate upon an engagement of the screw portion of the bolt and the screw hole of the attached member, and
• the head portion of the bolt is, upon a screwing of the bolt into the screw hole, engaged with the first recess portion of the plate thereby fixing the plate to the attached member in a circumferential direction, and then brought into contact with the plate before the attached member thereby forcibly causing a curvature of the plate to approximate to a curvature of the groove of of the attached member.