Nozzle with filter, gasification combined cycle power generator, and method for disassembling filter from nozzle with filter

A nozzle with a filter, comprising:

• a nozzle body having a cylindrical shape, the nozzle body in which a fluid flows;
• a filter including a porous body, the filter having a predetermined thickness in a central axis direction, the filter disposed in such a manner to cover an inner cross-sectional face of the nozzle body at an inside of a leading end portion on a first end portion side of the nozzle body, the inside being in a radial direction of the nozzle body;
• a retainer having an annular shape, the retainer attached via bolts to the leading end portion of the nozzle body in a detachable manner, the retainer configured to fix an outer circumferential portion of the filter via a pair of sealing parts;
• and
• a sealing portion disposed along an outer circumferential end face of the filter, the sealing portion configured to seal off and prevent the fluid from flowing out from the outer circumferential end face outwards in a radial direction through the filter,
• wherein a flange member is disposed on a base end portion of the nozzle body on a second end portion side, the flange member configured to be in a plane contact with the base end portion of the nozzle body such that the flange member and the base end portion are made airtight.