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Turbine insulation is disclosed, and comprises blankets, ribs and coupling members. The blankets define, with the turbine, an annular channel in receipt of the turbine vertical joint and a pair of longitudinal channels each in receipt of a respective turbine horizontal joint. A pair of ribs are posi

Turbine insulation is disclosed, and comprises blankets, ribs and coupling members. The blankets define, with the turbine, an annular channel in receipt of the turbine vertical joint and a pair of longitudinal channels each in receipt of a respective turbine horizontal joint. A pair of ribs are positioned in each longitudinal channel, in volume-filling relation thereto and overlapping the blankets disposed, respectively, fore and aft of the vertical joint. A pair of ribs are positioned in volume-filling relation to the annular channel and overlapping the blankets disposed, respectively, on the upper and lower arcuate portions of the housing. A coupling member is positioned in each longitudinal channel at its intersection with the annular channel, in volume-filling relation to a void defined by the housing and the ribs and in lapped relation to the ribs.

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1. An insulation system for use with a turbine housing of the type having a tubular exterior surface centred about and defining a horizontal longitudinal axis, a vertical joint raised relative to the tubular exterior surface and dividing the housing into fore and aft tubular portions and a pair of h

1. An insulation system for use with a turbine housing of the type having a tubular exterior surface centred about and defining a horizontal longitudinal axis, a vertical joint raised relative to the tubular exterior surface and dividing the housing into fore and aft tubular portions and a pair of horizontal joints raised relative to the tubular exterior surface and dividing the housing into upper and lower arcuate portions, said insulation system comprising:four insulation blankets removably positioned, in use, at respective operative positions upon said tubular exterior surface, in spaced relation to the horizontal joints and to the vertical joint so as to define between one another, in combination with the tubular surface of the housing, an annular channel in which the vertical joint is positioned and a pair of longitudinal channels each intersecting the annular channel and having positioned therein a respective horizontal joint;a pair of first insulation ribs for each longitudinal channel, said pair of first insulation ribs being removably positioned, in use, respectively, fore and aft of said vertical joint, in volume-filling relation to said each longitudinal channel, in straddling, close-fitting relation to the horizontal joint positioned in said each longitudinal channel and in overlapping relation to the insulation blankets disposed, respectively, on the fore and aft tubular portions of the housing;a pair of second insulation ribs, said pair of second insulation ribs being removably positioned, in use, respectively, above and beneath the horizontal joints, in volume-filling relation to the annular channel, in straddling, close-fitting relation to the vertical joint, and in overlapping relation to the insulation blankets disposed, respectively, on the upper and lower arcuate portions of the housing; andan insulation coupling member for each longitudinal channel, said insulation coupling member being removably positioned, in use, in said each longitudinal channel at the intersection thereof with the annular channel, in volume-filling relation to a void defined by the housing, the first insulation ribs and the second insulation ribs, in straddling, close-fitting relation to the horizontal joint positioned in said each longitudinal channel and to the vertical joint, and in lapped relation to the first insulation ribs and the second insulation ribs. 2. An insulation system according to claim 1, wherein the insulation coupling member is positioned, in use, in overlapped relation to the first insulation ribs and the second insulation ribs. 3. An insulation system according to claim 2, wherein the void is defined by the housing, the first insulation ribs, the second insulation ribs and the insulation blankets. 4. An insulation system according to claim 3, wherein each first insulation rib comprises a plurality of first insulation rib segments arranged, in use, in half-lap relation to one another. 5. An insulation system according to claim 4, further comprising means for releasably securing each first insulation rib segment to the insulation blankets which it overlaps in use. 6. An insulation system according to claim 5, wherein the means for releasably securing each first insulation rib segment to the insulation blankets which it overlaps in use comprises a plurality of first rib securing loops, a first rib securing strap for each first rib securing loop, and a first rib securing clasp for each first rib securing strap, arranged such that, for each first insulation rib segment, at least one of said plurality of first rib securing loops is securely attached to the exterior surface of each of the insulation blankets which said each first insulation rib segment overlaps in use, the first rib securing straps for said first rib securing loops are securely attached to said each first insulation rib segment and extend therefrom, in use, downwardly through said first rib securing loops, and back to the first rib securing clasps prov ided therefor, which are securely attached to said each first insulation rib segment. 7. An insulation system according to claim 6, wherein each second insulation rib comprises a plurality of second insulation rib segments arranged, in use, in half-lap relation to one another. 8. An insulation system according to claim 7, further comprising means for releasably securing each second insulation rib segment to the insulation blankets which it overlaps in use. 9. An insulation system according to claim 8, wherein the means for releasably securing each second insulation rib segment to the insulation blankets which it overlaps in use comprises a plurality of second rib securing loops, a second rib securing strap for each second rib securing loop, and a second rib securing clasp for each second rib securing strap, arranged such that, for each second insulation rib segment, at least one of said plurality of second rib securing loops is securely attached to the exterior surface of each of the insulation blankets which said each second insulation rib segment overlaps in use, the second rib securing straps for said second rib securing loops are securely attached to said each second insulation rib segment and extend therefrom, in use, downwardly through said second rib securing loops, and back to the second rib securing clasps provided therefor, which are securely attached to said each second insulation rib segment. 10. An insulation system according to claim 9, wherein each insulation blanket comprises a plurality of blanket segments arranged, in use, in half-lap relation to one another. 11. An insulation system according to claim 10, further comprising means for releasably securing the plurality of blanket segments of each insulation blanket to one another in such arrangement in use. 12. An insulation system according to claim 11, wherein the means for releasably securing the plurality of blanket segments of each insulation blanket to one another in use comprises a plurality of loop, clasp and strap assemblies operably mounted to said blanket segments. 13. An insulation system according to claim 12, further comprising means for releasably securing the insulation blankets at their respective operative positions. 14. An insulation system according to claim 13, wherein the means for releasably securing the insulation blankets at their respective operative positions comprises a plurality of positioning members, each defining at least one positioning loop, a positioning strap for each positioning loop, and a positioning clasp for each positioning strap, arranged such that a pair of positioning members are securely mounted in use to the housing in circumferentially bracketing relation to said each insulation blanket, the positioning straps for the positioning loops defined by said positioning members are securely attached to said each insulation blanket and extend therefrom, downwardly through said positioning loops, and back to the positioning clasps provided therefor, which are securely attaced to said each insulation blanket, to urge the insulation blanket against the housing. 15. An insulation system according to claim 14, wherein the means for releasably securing the blanket segments at their respective operative positions further comprises:a plurality of spikes secured, in use, to the lower arcuate portion of the housing and having impaled thereon the insulation blankets disposed on said lower arcuate portion; anda plurality of lock washers each seated, in use, on a respective spike in exteriorly abutting relation to said insulation blankets. 16. An insulation system according to claim 15, further comprising means for releasably securing each insulation coupling member to the first insulation ribs and second insulation ribs which it overlaps in use. 17. An insulation system according to claim 16, wherein the means for releasably securing each insulation coupling member to the first insulation ribs and the second insulation ribs which it overlaps in use comprises a plurality of coupler loops, a coupler strap for each coupler loop and a coupler clasp for each coupler strap, arranged such that, for each insulation coupler member, at least one of said plurality of coupler loops is securely attached to the exterior surface of each of said first insulation ribs and second insulation ribs, wherein the coupler straps for said coupler loops are securely attached to said each insulation coupling member and extend therefrom, in use, through said coupler loops and back to the coupler clasps provided therefor, which are securely attached to said each insulation coupling member, to urge the insulation coupling member against said first insulation ribs and second insulation ribs. 18. Method for insulating a turbine housing of the type having a tubular exterior surface centred about and defining a horizontal longitudinal axis, a vertical joint raised relative to the tubular exterior surface and dividing the housing into fore and aft tubular portions and a pair of horizontal joints raised relative to the tubular exterior surface and dividing the housing into upper and lower arcuate portions, said method comprising the steps of:(a) providing the insulation system of claim 1;(b) positioning the insulation blankets at their respective operative positions upon said tubular exterior surface in spaced relation to the horizontal joints and to the vertical joint so as to define between one another, in combination with the tubular surface of the housing, an annular channel in which the vertical joint is positioned and a pair of longitudinal channels each intersecting the annular channel and having positioned therein a respective horizontal joint;(c) positioning, with respect to each longitudinal channel, the pair of first insulation ribs therefor, respectively, fore and aft of said vertical joint, in volume-filling relation to said each longitudinal channel, in straddling, close-fitting relation to the horizontal joint positioned in said each longitudinal channel and in overlapping relation to the insulation blankets disposed, respectively, on the fore and aft tubular portions of the housing;(d) positioning said pair of second insulation ribs, respectively, above and beneath the horizontal joints, in volume-filling relation within the annular channel, in straddling, close-fitting relation to the vertical joint, and in overlapping relation to the insulation blankets disposed, respectively, on the upper and lower arcuate portions of the housing; and(e) positioning the pair of insulation coupling members, respectively, in each longitudinal channel, at the intersection thereof with the annular channel, in volume-filling relation to a void defined by the housing, the first insulation ribs and the second insulation ribs, in straddling, close-fitting relation to the horizontal joint positioned in said each longitudinal channel and to the vertical joint, and in lapped relation to the first insulation ribs and the second insulation ribs. 19. Method for insulating a turbine housing of the type having a tubular exterior surface centred about and defining a horizontal longitudinal axis, a vertical joint raised relative to the tubular exterior surface and dividing the housing into fore and aft tubular portions and a pair of horizontal joints raised relative to the tubular exterior surface and dividing the housing into upper and lower arcuate portions, said method comprising the steps of:(a) providing the insulation system of claim 17;(b) positioning the insulation blankets at their respective operative positions upon said tubular exterior surface in spaced relation to the horizontal joints and to the vertical joint so as to define between one another, in combination with the tubular surface of the housing, an annular channel in which the vertical joint is positioned and a pair of longitudinal channels each intersecting the annular channel and having positioned therein a respective horizontal join t;(c) positioning, with respect to each longitudinal channel, the pair of first insulation ribs therefor, respectively, fore and aft of said vertical joint, in volume-filling relation to said each longitudinal channel, in straddling, close-fitting relation to the horizontal joint positioned in said each longitudinal channel and in overlapping relation to the insulation blankets disposed, respectively, on the fore and aft tubular portions of the housing;(d) positioning said pair of second insulation ribs, respectively, above and beneath the horizontal joints, in volume-filling relation within the annular channel, in straddling, close-fitting relation to the vertical joint, and in overlapping relation to the insulation blankets disposed, respectively, on the upper and lower arcuate portions of the housing; and(e) positioning the pair of insulation coupling members, respectively, in each longitudinal channel, at the intersection thereof with the annular channel, in plugged relation to a void defined by the housing, the first insulation ribs, the second insulation ribs and the insulation blankets, in straddling, close-fitting relation to the horizontal joint positioned in said each longitudinal channel and to the vertical joint, and in overlapped relation to the first insulation ribs and the second insulation ribs. 20. A method according to claim 19, further comprising the step(b) (1) of releasably securing the insulation blankets at their respective operative positions, said step comprising, for each insulation blanket, the substeps of:(i) securely mounting the pair of positioning members for said each insulation blanket to the housing by welding;(ii) threading the positioning straps secured to said each insulation blanket through respective positioning loops of said pair of positioning members, and drawing said positioning straps through a respective positioning clasp to urge said each insulation blanket against the housing. 21. A method according to claim 20, wherein step (b) (1) further comprises, substep(iii) securing the plurality of spikes to the lower arcuate portion of the housing by welding;and, for the insulation blankets disposed on the lower arcuate portion, substeps:(iv) impaling said insulation blankets on said plurality of spikes; and(v) seating each lock washer on a respective spike in exteriorly abutting relation to said insulation blankets. 22. A method according to claim 21, wherein step (b) (1) further comprises the substeps, for each insulation blanket, of:(vi) positioning each of the insulation blanket segments which form said each insulation blanket one after another on the housing in half-lap relation to adjacent insulation blanket segments; and(vii) securing each insulation blanket segment to adjacent insulation blanket segments by the loop, strap and clasp assemblies. 23. A method according to claim 19, wherein step (c) comprises the steps, for each first insulation rib, of:(c)(i) positioning each of the first insulation rib segments which form the same in seriatim in volume-filling relation to said each longitudinal channel, in straddling, close-fitting relation to the horizontal joint contained by said each longitudinal channel, in overlapping relation to the adjacent insulation blankets, and in half-lap relation to adjacent first insulating rib segments; and(c)(ii) threading the first rib securing straps secured to said each first insulation rib segment through a respective first rib securing loop on the insulation blanket which it overlaps, and drawing said first rib securing strap through a respective clasp to urge said each first rib insulation segment against said insulation blanket. 24. A method according to claim 19, wherein step (d) comprises the steps, for each second insulation rib, of:(d)(i) positioning each of the second insulation rib segments which form the same one after another in volume-filling relation to said each longitudinal channel, in straddling, close-fitting relation to the hor izontal joint positioned in said each longitudinal channel, in overlapping relation to the adjacent insulation blankets, and in half-lap relation to adjacent second insulating rib segments; and(d)(ii) threading the second rib securing straps secured to said each second insulation rib segment through a respective second rib securing loop on the insulation blanket which it overlaps, and drawing said second rib securing strap through a respective second rib securing clasp to urge said each second insulation rib segment against said insulation blanket.