Circulating fluidized bed boiler multiple-point return feeder
A technology of circulating fluidized bed and feeder, which is applied in the field of high-temperature circulating material return device, which can solve the problems of difficult expansion design, prone to expansion sealing, and affecting operation safety, etc., to achieve flexible design, avoid deformation and leakage, and simplify The effect of the expansion seal
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Embodiment 1
[0018] As shown in Figures 1, 2, 3 and 4, it is embodiment 1, the multi-point feeder of circulating fluidized bed boiler, including a cylindrical descending section 1, a cuboid rising section 3, and a level connecting the two bottoms Section 2, its cross-section is approximately isosceles trapezoidal; the cross-section of ascending section 3 is rectangular, its long side is perpendicular to the direction of the horizontal symmetry axis of horizontal section 2, and the ratio of the cross-sectional area of ascending section 3 to the cross-sectional area of descending section 1 is 3.6; It also includes two return sections 4 that are respectively connected to the two overflow ports 31 on the upper part of the ascending section 3, and the two overflow ports 31 are equal in height; the two return sections 4 are symmetrical to each other on the symmetry plane of the return device, And the centerlines thereof are parallel to each other, and the outlets all point downward to the dir...
Embodiment 2
[0020] like Figure 5 , 6 Shown in and 7 are embodiment 2, the multi-point feeder of circulating fluidized bed boiler, comprising a cylindrical descending section 1, a cuboid rising section 3, and a horizontal section 2 connecting the two bottoms, whose cross section is approximately Isosceles trapezoidal; the cross-section of the ascending section 3 is a rectangle, and its long side is perpendicular to the direction of the horizontal symmetry axis of the horizontal section 2, and the ratio of the cross-sectional area of the ascending section 3 to the cross-sectional area of the descending section 1 is 2; The return section 4 connected to the overflow port 31 on the upper part of the ascending section 3 has its center lines parallel to each other, and the outlets all point to the furnace 10; the center line of one of the return sections 4 is located on the symmetric plane of the return device, and the other two are in the form of return The planes of symmetry of the devic...
Embodiment 3
[0022] As shown in Figures 8, 9 and 10 is embodiment 3, the multi-point return feeder of the circulating fluidized bed boiler, comprising a cylindrical descending section 1, a columnar ascending section 3, and a nearly cuboid shape connecting the two bottoms The horizontal section 2 of the horizontal section; the cross section of the rising section 3 is oblong, and its long side is perpendicular to the symmetry plane of the feeder, and the ratio of the cross-sectional area of the rising section 3 to the falling section 1 is 1; the upper part of the rising section 3 has two An overflow port 31, which is located at the two ends of the cross-sectional width direction of the rising section 3, that is, two circular ends; the centerlines of the two return sections 4 that link to each other with the overflow port 31 are on the same plane, and the The symmetry plane of the feeder is symmetrical, and the outlet points downwards to two opposite directions respectively, and communicates...
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Abstract
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Application Information
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