CN103147805A - Steam exhausting cylinder of axially-exhausting steam turbine unit - Google Patents
Steam exhausting cylinder of axially-exhausting steam turbine unit Download PDFInfo
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- CN103147805A CN103147805A CN2013100661226A CN201310066122A CN103147805A CN 103147805 A CN103147805 A CN 103147805A CN 2013100661226 A CN2013100661226 A CN 2013100661226A CN 201310066122 A CN201310066122 A CN 201310066122A CN 103147805 A CN103147805 A CN 103147805A
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Abstract
The invention provides a steam exhausting cylinder of an axially-exhausting steam turbine unit and relates to an exhausting cylinder of a steam turbine unit. The invention aims to solve the problems that a steam exhausting cylinder workshop of a steam turbine unit has high construction cost and the steam exhausting energy is lost when the steam exhausting energy of a radially-exhausting steam turbine unit enters an external condenser from the steam exhausting cylinder. The exhausting cylinder comprises a bearing box assembly and further comprises a water spray mechanism, a smoke discharge mechanism, a shell of the steam exhausting cylinder, an oil path mechanism, a steam-exhausting, flow guide and diffusion mechanism and a steam sealing body of the steam exhausting cylinder, wherein the steam-exhausting, flow guide and diffusion mechanism comprises a second flange, a flow guide cover and two semi-conical diffusion guide flow cylinders; the steam sealing body of the steam exhausting cylinder comprises a steam sealing shell, a high-pressure steam inlet pipe, a micro-negative-pressure steam suction pipe, two first fixing plates and two second fixing plates; and the bearing box assembly comprises a bearing pedestal mounted with a bearing, a bearing box body, a sixth flange and a bearing box protective cover. The steam exhausting cylinder is applied to the steam turbine unit.
Description
Technical field
The present invention relates to a kind of exhaust casing of steam turbine set, be specifically related to a kind of exhaust casing of axial exhaust turbine group.
Background technique
Traditional steam turbine generally adopts radially steam discharge, radially the bearing housing of exhaust turbine unit is generally in the outside of unit exhaust casing, steam turbine set is very high for the spatial requirement of factory building, so also improved the required cost of construction of factory building, and radially the steam discharge energy of exhaust turbine group exhaust casing enters into outside vapour condenser by exhaust casing and has than macro-energy and lose.
Summary of the invention
The present invention is high for the cost of the exhaust casing workshop building that solves steam turbine set, the larger problem of steam discharge energy loss when steam discharge energy radially exhaust turbine group enters into outside vapour condenser by exhaust casing, and then a kind of exhaust casing of axial exhaust turbine group is provided.
the present invention addresses the above problem the technological scheme that adopts to be: described exhaust casing comprises the bearing housing assembly, described exhaust casing also comprises water spraying mechanism, smoke exhaust mechanism, the exhaust casing housing, oil circuit mechanism, steam discharge water conservancy diversion diffusion mechanism and exhaust casing labyrinth casing mechanism, steam discharge water conservancy diversion diffusion mechanism comprises the second flange, air guide sleeve and two half cone-shaped diffusion guide shells, exhaust casing labyrinth casing mechanism comprises the packing housing, the high-pressure admission pipe, little negative pressure extraction steam pipe, two the first fixed plates and two the second fixed plates, the bearing housing assembly comprises the bearing support that bearing is installed, bearing housing, the 6th flange and bearing housing guard shield, two half cone-shaped diffusion guide shells fasten a tapered cylinder that forms, one end face seal of the small end of tapered cylinder and the second flange is fixed, the center line of two half cone-shaped diffusion guide shells overlaps with the center line of the second flange, air guide sleeve is cylindric, the bottom of bearing housing is the plane, the bearing housing guard shield forms for two and half cylinder bodies by an end opening fasten, the opening of bearing housing guard shield and the 6th flange one end face seal are fixed, the center line of bearing housing guard shield overlaps with the center line of the 6th flange, the packing housing is relatively fastened by two semicircular ring and forms, two semicircular ring and the 5th flange are fixed near an end face seal of inner headed face, the center line of packing housing overlaps with the center line of the 5th flange, the top of bearing support of bearing and the inwall at bearing housing top are installed to be fixed, the bottom of bearing support and bearing housing guard shield bottom that bearing is installed are fixing, be processed with respectively the first circular groove and the second circular groove on the madial wall of packing housing, the first circular groove is positioned at the left side of the second circular groove, the 5th flange internal diameter equates with the small end internal diameter of semicircular ring, and the center line of the 5th flange overlaps with the center line of semicircular ring, both sides near the cross section on semicircular ring are fixed with respectively first fixed plate, both sides near the cross section on another semicircular ring are fixed with respectively second fixed plate, each first relative fixed plate is fixedly connected with the second fixed plate, the other end sealing of the other end of the 5th flange and the 6th flange is fixing, air guide sleeve is set in the exhaust casing labyrinth casing mechanism outside, the first fixed plate and the second fixed plate are all affixed with the inwall of air guide sleeve, and the center line of the 5th flange, the center line of air guide sleeve overlaps with the center line of the 6th flange, bearing housing guard shield and air guide sleeve are fixedly installed in the exhaust casing housing, one end of high-pressure admission pipe is communicated with the bottom of the second circular groove, little negative pressure extraction steam pipe is communicated with the first annular groove bottom, the other end of high-pressure admission pipe passes successively air guide sleeve and the exhaust casing housing is derived, the other end of little negative pressure extraction steam pipe passes successively air guide sleeve and the exhaust casing housing is derived.
the invention has the beneficial effects as follows: reduced the required solid space of factory building by the present invention, save the construction cost of factory building, bearing housing assembly design in the present invention is in the inside of exhaust casing, and increased steam discharge water conservancy diversion diffusion mechanism, two half cone-shaped diffusion guide shells fasten the conically shaped that forms with expansion angle, make steam flow after leaving the final stage moving blade that is arranged on exhaust casing inside, carry out the recovery of energy, pressure is raise, kinetic energy reduces, in addition, cylinder inner wall is conically shaped, steam flow is after the guide plate of flowing through, during through half cone-shaped diffusion guide shell inwall, can carry out secondary diffusion, reclaim the static pressure of steam discharge, reduce the speed of steam flow, steam flow is able to lower speed and higher pressure enters vapour condenser like this, reduce the loss of steam discharge energy, the inwall of the first fixed plate and the second fixed plate and air guide sleeve is affixed, the intensity that strengthens air guide sleeve prevents distortion, it is simple that the present invention has an operating structure, satisfy the requirement of design, the characteristics that usability is strong.
Description of drawings
Fig. 1 is the integrally-built schematic diagram of the present invention, Fig. 2 is the schematic diagram that in the present invention, arc boatswain chair 8 is arranged on exhaust casing housing 3 tops, Fig. 3 is that overall structure master of the present invention looks sectional view, Fig. 4 is the schematic diagram that in the present invention, two half-cone housings 11 are arranged on two semicircular shell 10 1 sides, Fig. 5 is the schematic diagram that in the present invention, exhaust casing labyrinth casing mechanism 7 is arranged on exhaust casing housing 3 inside, Fig. 6 is the schematic diagram that in the present invention, oil circuit mechanism 4 is arranged on exhaust casing housing 3, and Fig. 7 is the schematic diagram that in the present invention, water spraying mechanism 1 is arranged on exhaust casing housing 3.
Embodiment
embodiment one: present embodiment is described in conjunction with Fig. 1-Fig. 7, a kind of exhaust casing of axial exhaust turbine group, described exhaust casing comprises bearing housing assembly 9, described exhaust casing also comprises water spraying mechanism 1, smoke exhaust mechanism 2, exhaust casing housing 3, oil circuit mechanism 4, steam discharge water conservancy diversion diffusion mechanism 6 and exhaust casing labyrinth casing mechanism 7, steam discharge water conservancy diversion diffusion mechanism 6 comprises the second flange 28, air guide sleeve 25 and two half cone-shaped diffusion guide shells 26, exhaust casing labyrinth casing mechanism 7 comprises packing housing 27, high-pressure admission pipe 37, little negative pressure extraction steam pipe 38, two the first fixed plates 34 and two the second fixed plates 35, bearing housing assembly 9 comprises the bearing support 9-1 that bearing is installed, bearing housing 9-2, the 6th flange 33 and bearing housing guard shield 9-3, two half cone-shaped diffusion guide shells 26 fasten a tapered cylinder that forms, one end face seal of the small end of tapered cylinder and the second flange 28 is fixed, the center line of two half cone-shaped diffusion guide shells 26 overlaps with the center line of the second flange 28, air guide sleeve 25 is cylindric, the bottom of bearing housing 9-2 is the plane, bearing housing guard shield 9-3 forms for two and half cylinder bodies by an end opening fasten, the opening of bearing housing guard shield 9-3 and the 6th flange 33 1 end face seals are fixed, the center line of bearing housing guard shield 9-3 overlaps with the center line of the 6th flange 33, packing housing 27 is relatively fastened by two semicircular ring 27-2 and forms, two semicircular ring 27-2 and the 5th flange 27-1 fix near an end face seal of inner headed face, the center line of packing housing 27 overlaps with the center line of the 5th flange 27-1, the top of bearing support 9-1 of bearing and the inwall at bearing housing 9-2 top are installed to be fixed, the bottom of bearing support 9-1 and bearing housing guard shield 9-3 bottom that bearing is installed are fixing, be processed with respectively the first circular groove 42 and the second circular groove 43 on the madial wall of packing housing 27, the first circular groove 42 is positioned at the left side of the second circular groove 43, the 5th flange 27-1 internal diameter equates with the small end internal diameter of semicircular ring 27-2, and the center line of the 5th flange 27-1 overlaps with the center line of semicircular ring 27-2, a semicircular ring 27-2 upward is fixed with respectively first fixed plate 34 near the both sides in cross section, the upper both sides near the cross section of another semicircular ring 27-2 are fixed with respectively second fixed plate 35, each first relative fixed plate 34 is fixedly connected with the second fixed plate 35, the other end sealing of the other end of the 5th flange 27-1 and the 6th flange 33 is fixing, air guide sleeve 25 is set in exhaust casing labyrinth casing mechanism 7 outsides, the first fixed plate 34 and the second fixed plate 35 are all affixed with the inwall of air guide sleeve 25, and the center line of the 5th flange 27-1, the center line of air guide sleeve 25 overlaps with the center line of the 6th flange 33, bearing housing guard shield 9-3 and air guide sleeve 25 are fixedly installed in exhaust casing housing 3, one end of high-pressure admission pipe 37 is communicated with the bottom of the second circular groove 43, little negative pressure extraction steam pipe 38 is communicated with the first circular groove 42 bottoms, the other end of high-pressure admission pipe 37 passes successively air guide sleeve 25 and exhaust casing housing 3 is derived, the other end of little negative pressure extraction steam pipe 38 passes successively air guide sleeve 25 and exhaust casing housing 3 is derived.
embodiment two: present embodiment is described in conjunction with Fig. 1-Fig. 7, a kind of exhaust casing of axial exhaust turbine group, described exhaust casing housing 3 comprises arc boatswain chair 8, rectangular framework 12, rectangular cover plate 15, guide plate 22, three-flange 29, the 4th flange 31, fixed arch plate 40, supporting arc plate 36, the 7th flange 41, two semicircular shells 10, two supporting bases 13, two supporting frames 14, two half-cone housings 11, two arc channel-section steels 32, three are supported pipe 19 and four closure plates 46, two semicircular shells 10 fasten and form a circular shell, the inwall of semicircular shell 10 is the flaring shape, two semicircular shell 10 internal diameter small ends and the 4th flange 31 1 sides are fixing near the inner circle sealing, two semicircular shell 10 large ends of internal diameter and the 7th flange 41 sealings are fixing, two supporting bases 13 and two supporting frames 14 are symmetricly set on respectively semicircular shell 10 near on the outer side wall of bottom semicircular housing 10, two half-cone housings 11 fasten and form a conical shell, two maximum ends of half-cone housing 11 are fixing with the opposite side sealing of the 4th flange 31, the small end of two half-cone housings 11 and three-flange 29 sealings are fixing, each arc channel-section steel 32 sealing is fixed on each outer side surface near the small end of half cone-shaped diffusion guide shell 26, the two ends of each arc channel-section steel 32 are by closure plate 46 sealings, radially evenly be processed with a plurality of circular holes 45 on the half cone-shaped diffusion guide shell 26 relative with arc channel-section steel 32, 12 sealings of rectangular framework are fixed on the top periphery of a semicircular shell 10, and be processed with a rectangular hole 47 on the semicircular shell in rectangular framework 12 10, rectangular cover plate 15 is fixed on the top of rectangular framework 12, two half cone-shaped diffusion guide shells 26 are arranged on two semicircular shell 10 inside, the outer side surface of the second flange 28 is fixed at the inner wall sealing of two semicircular shell 10 internal diameter small ends with close, the large end sealing of two half cone-shaped diffusion guide shells 26 is fixed on the inwall of two semicircular shells 10, large end at the half cone-shaped diffusion guide shell 26 that is positioned at the top is processed with flow-guiding mouth, breach and the rectangular framework 12 of half cone-shaped diffusion guide shell 26 are oppositely arranged, and the indentation, there near half cone-shaped diffusion guide shell 26 radially is fixed with supporting arc plate 36 along half cone-shaped diffusion guide shell 26 between semicircular shell 10 and half cone-shaped diffusion guide shell 26, the length of the length of arc boatswain chair 8 and guide plate 22 is identical with the length of rectangular hole 47, the width of rectangular hole 47 is greater than the width of arc boatswain chair 8, the width of arc boatswain chair 8 is greater than the width of guide plate 22, overlapping being fixedly installed of minor face at the minor face at arc boatswain chair 8 two ends and guide plate 22 two ends, the setting of aliging with the long limit on the right side of arc boatswain chair 8 of the long limit on guide plate 22 right sides, and be provided with a fixed arch plate 40 between the right side near guide plate 22 right sides and arc boatswain chair 8, the bottom surface of guide plate 22 left sides and arc boatswain chair 8 is fixed, arc boatswain chair 8 is arranged near on the rectangular hole 47 of half-cone housing 11 1 sides, guide plate 22 is near the flow-guiding mouth setting of half cone-shaped diffusion guide shell 26, the bearing housing guard shield 9-3 that is arranged in exhaust casing housing 3 supports fixing by three support pipes 19, one of them supports pipe 19 vertically between bearing housing guard shield 9-3 and two semicircular shells 10, three are supported pipe 19 and are symmetrical set, each two ends of supporting pipe 19 is fixedly connected with two semicircular shells 10 with bearing housing guard shield 9-3 respectively, in the present invention, first of exhaust casing is provided with rectangular cover plate 15, there is a detachable semicircle diffusion guide shell 26 inside, satisfy the maintenance man and free in and out this exhaust casing, realization is for the service work of bearing housing and exhaust casing inner components, other is identical with embodiment one.
embodiment three: in conjunction with Fig. 1, Fig. 3 and Fig. 7 illustrate present embodiment, a kind of exhaust casing of axial exhaust turbine group, water spraying mechanism 1 comprises pipe joint 21, two water pipes 20 and a plurality of nozzle 39, one end of two water pipes 20 is oppositely arranged and is tightly connected by pipe joint 21, the housing that any end at water pipe 20 other two ends passes semicircular shell 10 is communicated with arc channel-section steel 32, the other end of water pipe 20 and outside water feed apparatus are tightly connected, on semicircle diffusion guide shell 26, each circular hole sealing is fixed with a nozzle 39, nozzle 39 arranges towards bearing housing guard shield 9-3, nozzle 39 is in vertical direction with 35 ° to 65 ° settings, nozzle 39 by water spraying mechanism 1 has been realized cooling-down effect, water spraying mechanism 1 in the present invention is arranged on has avoided between exhaust casing housing 3 and steam discharge water conservancy diversion diffusion mechanism 6 that in water pipe 20 and cylinder, the direct of water vapor contacts, increased leaving area, reduced the windage loss that direct contact brings, two water pipes 20 are tightly connected by pipe joint 21, when unit maintenance is dismantled, pipe joint 21 is turned on like this and got final product, other is identical with embodiment two.
embodiment four: present embodiment is described in conjunction with Fig. 3 and Fig. 6, a kind of exhaust casing of axial exhaust turbine group, oil circuit mechanism 4 comprises oil inlet pipe 16 and oil outlet tube 17, oil inlet pipe 16 supports pipe 19 and passes the side that bearing housing guard shield 9-3 is arranged on the bearing support 9-1 that bearing is installed by being positioned at three one of them that support pipe 19 both sides, oil outlet tube 17 by be positioned at three support pipe 19 both sides another support pipe 19 and pass bearing housing guard shield 9-3 and the bottom of bearing housing 9-2 and being communicated with bearing housing 9-2, the present invention has avoided oil inlet pipe 16 to contact with the direct of exhaust casing steam discharge with oil outlet tube 17, improved the Security of this exhaust casing, other is identical with embodiment two.
Embodiment five: present embodiment is described in conjunction with Fig. 1 and Fig. 3, a kind of exhaust casing of axial exhaust turbine group, smoke exhaust mechanism 2 comprises smoke-ejecting pipe 23 and the first flange 24, the first flange 24 sealings are arranged on the top of bearing housing guard shield 9-3, one end of smoke-ejecting pipe 23 passes the first flange 24 and is communicated with bearing housing guard shield 9-3, any one side plate that the other end of smoke-ejecting pipe 23 passes rectangular framework 12 is communicated with exterior part, and other is identical with embodiment four.
Embodiment six: present embodiment is described in conjunction with Fig. 2, a kind of exhaust casing of axial exhaust turbine group, described exhaust casing also comprises two strip plates 18 and a plurality of lifting thread head 44, the upper-end surface of arc boatswain chair 8 evenly is fixed with a plurality of lifting thread heads 44, be fixed with respectively a strip plate 18 on the upper-end surface of arc boatswain chair 8 both sides minor faces, each strip plate 18 is fixed on the housing of the interior semicircular shell 10 of square framework 12, facilitated arc boatswain chair 8 to move when maintenance, other is identical with embodiment two.
Embodiment seven: present embodiment is described in conjunction with Fig. 5, a kind of exhaust casing of axial exhaust turbine group, described exhaust casing also comprises a plurality of wedge shape gussets 30, a plurality of wedge shape gussets 30 evenly are arranged on the outer side wall of two semicircular ring 27-2, and face directly on the side that is separately fixed at semicircular ring sidewall 27-2 and the 5th flange 27-1 for two of wedge shape gusset 30, other is identical with embodiment one.
Embodiment eight: in conjunction with Fig. 1, present embodiment is described, a kind of exhaust casing of axial exhaust turbine group is processed with two through holes 45 on described rectangular cover plate 15, and other is identical with embodiment two.
Embodiment nine: present embodiment is described in conjunction with Fig. 3, a kind of exhaust casing of axial exhaust turbine group, described exhaust casing also comprises temperature and pressure control gear 5, temperature and pressure control gear 5 is arranged near bearing housing 9-2 leftward position, temperature and pressure in exhaust casing is monitored, and other is identical with embodiment four.
Working principle
Water vapor is through after three grade blades, by the steam discharge water conservancy diversion diffusion mechanism 6 in exhaust casing housing 3, the kinetic energy of water vapor reduced, and reclaims a part of remaining kinetic energy, is translated into the pressure energy of water vapor, recovered energy, raising capacity usage ratio.After water vapor process steam discharge water conservancy diversion diffusion mechanism 6, enter into vapour condenser, outside vapour condenser reduces the temperature of water vapor, and it is condensed into water.The velocity of exhaust of water vapor before entering vapour condenser generally remains on the 90m/s left and right,
Unit is in start-up course, when the rotor speed in being arranged on exhaust casing reaches 600r/min, the water spray projector system that is arranged in exhaust casing will drop into automatically, and before reaching approximately 15% load, unit continues use, when surpassing 70 ℃ because of other reasons, the exhaust casing temperature also can automatically drop into simultaneously, in the situation that idling lotus steam flow and vacuum, the exhaust casing temperature can not be too high, vacuum error can cause that the exhaust casing temperature raises, when the exhaust casing excess Temperature, can affect the intensity of the interior exhaust stage blade of exhaust casing and casing wall.If temperature surpasses 80 ℃, must load or improve the temperature that vacuum progressively reduces exhaust casing by increase, the limiting temperature of exhaust casing is 120 ℃.If reach this temperature, should shut down and get rid of fault.
Steam turbine is in the process that starts, moves and shut down; because existing friction between the rotor that is arranged on exhaust casing inside and bearing; certain temperature will be produced; will produce a large amount of oil smoke; by smoke exhaust mechanism, oil smoke is extracted out; be discharged to after filtering in atmosphere environment, make the interior pressure of bearing housing lower than barometric pressure 100-200KPa, make to be in all the time micro-vacuum state in bearing housing.
First is provided with arc boatswain chair 8 and rectangular framework 12 this exhaust casing, when break down in exhaust casing inside, arc boatswain chair 8 can be taken off, and the maintainer enters into exhaust casing inside from rectangular framework 15, completes the service work to exhaust casing inside.With bearing housing assembly 9 and labyrinth casing mechanism 7 all from then on access hole hang out, avoided in the past unit first whole disassembling of exhaust casing just can must be completed the service work in exhaust casing when maintenance, improved the efficient of service work.
Claims (9)
1. the exhaust casing of an axial exhaust turbine group, described exhaust casing comprises bearing housing assembly (9), it is characterized in that: described exhaust casing also comprises water spraying mechanism (1), smoke exhaust mechanism (2), exhaust casing housing (3), oil circuit mechanism (4), steam discharge water conservancy diversion diffusion mechanism (6) and exhaust casing labyrinth casing mechanism (7), steam discharge water conservancy diversion diffusion mechanism (6) comprises the second flange (28), air guide sleeve (25) and two half cone-shaped diffusion guide shells (26), exhaust casing labyrinth casing mechanism (7) comprises packing housing (27), high-pressure admission pipe (37), little negative pressure extraction steam pipe (38), two the first fixed plates (34) and two the second fixed plates (35), bearing housing assembly (9) comprises the bearing support (9-1) that bearing is installed, bearing housing (9-2), the 6th flange (33) and bearing housing guard shield (9-3), two half cone-shaped diffusion guide shells (26) fasten a tapered cylinder that forms, one end face seal of the small end of tapered cylinder and the second flange (28) is fixed, the center line of two half cone-shaped diffusion guide shells (26) overlaps with the center line of the second flange (28), air guide sleeve (25) is cylindric, the bottom of bearing housing (9-2) is the plane, bearing housing guard shield (9-3) forms for two and half cylinder bodies by an end opening fasten, the opening of bearing housing guard shield (9-3) and the 6th flange (33) one end face seals are fixed, the center line of bearing housing guard shield (9-3) overlaps with the center line of the 6th flange (33), packing housing (27) is relatively fastened by two semicircular ring (27-2) and forms, two semicircular ring (27-2) are fixed near an end face seal of inner headed face with the 5th flange (27-1), the center line of packing housing (27) overlaps with the center line of the 5th flange (27-1), the top of bearing support (9-1) of bearing and the inwall at bearing housing (9-2) top are installed to be fixed, the bottom of bearing support (9-1) and bearing housing guard shield (9-3) bottom that bearing is installed are fixing, be processed with respectively the first circular groove (42) and the second circular groove (43) on the madial wall of packing housing (27), the first circular groove (42) is positioned at the left side of the second circular groove (43), the 5th flange (27-1) internal diameter equates with the small end internal diameter of semicircular ring (27-2), and the center line of the 5th flange (27-1) overlaps with the center line of semicircular ring (27-2), the upper both sides near the cross section of a semicircular ring (27-2) are fixed with respectively first fixed plate (34), the upper both sides near the cross section of another semicircular ring (27-2) are fixed with respectively second fixed plate (35), each relative first fixed plate (34) is fixedly connected with the second fixed plate (35), the other end sealing of the other end of the 5th flange (27-1) and the 6th flange (33) is fixing, air guide sleeve (25) is set in exhaust casing labyrinth casing mechanism (7) outside, the first fixed plate (34) and the second fixed plate (35) are all affixed with the inwall of air guide sleeve (25), and the center line of the 5th flange (27-1), the center line of air guide sleeve (25) overlaps with the center line of the 6th flange (33), bearing housing guard shield (9-3) and air guide sleeve (25) are fixedly installed in exhaust casing housing (3), one end of high-pressure admission pipe (37) is communicated with the bottom of the second circular groove (43), little negative pressure extraction steam pipe (38) is communicated with bottom the first circular groove (42), the other end of high-pressure admission pipe (37) passes successively air guide sleeve (25) and exhaust casing housing (3) is derived, the other end of little negative pressure extraction steam pipe (38) passes successively air guide sleeve (25) and exhaust casing housing (3) is derived.
2. a kind of exhaust casing of axial exhaust turbine group according to claim 1, it is characterized in that: described exhaust casing housing (3) comprises arc boatswain chair (8), rectangular framework (12), rectangular cover plate (15), guide plate (22), three-flange (29), the 4th flange (31), fixed arch plate (40), supporting arc plate (36), the 7th flange (41), two semicircular shells (10), two supporting bases (13), two supporting frames (14), two half-cone housings (11), two arc channel-section steels (32), three are supported pipe (19) and four closure plates (46), two semicircular shells (10) fasten and form a circular shell, the inwall of semicircular shell (10) is the flaring shape, two semicircular shells (10) internal diameter small end and the 4th flange (31) one sides are fixing near the inner circle sealing, the large end of two semicircular shells (10) internal diameter and the 7th flange (41) sealing are fixing, two supporting bases (13) and two supporting frames (14) are symmetricly set on respectively semicircular shell (10) near on the outer side wall of bottom semicircular housing (10), two half-cone housings (11) fasten and form a conical shell, the maximum end of two half-cone housings (11) is fixing with the opposite side sealing of the 4th flange (31), the small end of two half-cone housings (11) and three-flange (29) sealing are fixing, each arc channel-section steel (32) sealing is fixed on each outer side surface near the small end of half cone-shaped diffusion guide shell (26), the two ends of each arc channel-section steel (32) are by closure plate (46) sealing, radially evenly be processed with a plurality of circular holes (45) on the half cone-shaped diffusion guide shell (26) relative with arc channel-section steel (32), rectangular framework (12) sealing is fixed on the top periphery of a semicircular shell (10), and be processed with a rectangular hole (47) on the semicircular shell (10) in rectangular framework (12), rectangular cover plate (15) is fixed on the top of rectangular framework (12), two half cone-shaped diffusion guide shells (26) are arranged on two semicircular shells (10) inside, the outer side surface of the second flange (28) is fixed at the inner wall sealing of two semicircular shells (10) internal diameter small end with close, the large end sealing of two half cone-shaped diffusion guide shells (26) is fixed on the inwall of two semicircular shells (10), large end at the half cone-shaped diffusion guide shell (26) that is positioned at the top is processed with flow-guiding mouth, the breach of half cone-shaped diffusion guide shell (26) and rectangular framework (12) are oppositely arranged, and the indentation, there near half cone-shaped diffusion guide shell (26) radially is fixed with supporting arc plate (36) along half cone-shaped diffusion guide shell (26) between semicircular shell (10) and half cone-shaped diffusion guide shell (26), the length of the length of arc boatswain chair (8) and guide plate (22) is identical with the length of rectangular hole (47), the width of rectangular hole (47) is greater than the width of arc boatswain chair (8), the width of arc boatswain chair (8) is greater than the width of guide plate (22), overlapping being fixedly installed of minor face at the minor face at arc boatswain chair (8) two ends and guide plate (22) two ends, the setting of aliging with the long limit on the right side of arc boatswain chair (8) of the long limit on guide plate (22) right side, and be provided with a fixed arch plate (40) between the right side near guide plate (22) right side and arc boatswain chair (8), guide plate (22) left side is fixed with the bottom surface of arc boatswain chair (8), arc boatswain chair (8) is arranged near on the rectangular hole (47) of half-cone housing (11) one sides, guide plate (22) is near the flow-guiding mouth setting of half cone-shaped diffusion guide shell (26), the bearing housing guard shield (9-3) that is arranged in exhaust casing housing (3) supports fixing by three support pipes (19), one of them supports pipe (19) vertically between bearing housing guard shield (9-3) and two semicircular shells (10), three are supported pipe (19) and are symmetrical set, each two ends of supporting pipe (19) is fixedly connected with two semicircular shells (10) with bearing housing guard shield (9-3) respectively.
3. a kind of exhaust casing of axial exhaust turbine group according to claim 2, it is characterized in that: water spraying mechanism (1) comprises pipe joint (21), two water pipes (20) and a plurality of nozzle (39), one end of two water pipes (20) is oppositely arranged and passes through pipe joint (21) and is tightly connected, the housing that any end at the other two ends of water pipe (20) passes semicircular shell (10) is communicated with arc channel-section steel (32), the other end and the outside water feed apparatus of water pipe (20) are tightly connected, upper each the circular hole sealing of half cone-shaped diffusion guide shell (26) is fixed with a nozzle (39), nozzle (39) arranges towards bearing housing guard shield (9-3), nozzle (39) is in vertical direction with 35 ° to 65 ° settings.
4. a kind of exhaust casing of axial exhaust turbine group according to claim 2, it is characterized in that: oil circuit mechanism (4) comprises oil inlet pipe (16) and oil outlet tube (17), oil inlet pipe (16) supports pipe (19) and passes the side that bearing housing guard shield (9-3) is arranged on the bearing support (9-1) that bearing is installed by being positioned at three one of them that support pipe (19) both sides, oil outlet tube (17) by be positioned at three support pipe (19) both sides another support pipe (19) and pass bearing housing guard shield (9-3) and the bottom of bearing housing (9-2) and being communicated with bearing housing (9-2).
5. a kind of exhaust casing of axial exhaust turbine group according to claim 1, it is characterized in that: smoke exhaust mechanism (2) comprises smoke-ejecting pipe (23) and the first flange (24), the first flange (24) sealing is arranged on the top of bearing housing guard shield (9-3), one end of smoke-ejecting pipe (23) passes the first flange (24) and is communicated with bearing housing guard shield (9-3), and any one side plate that the other end of smoke-ejecting pipe (23) passes rectangular framework (12) is communicated with exterior part.
6. a kind of exhaust casing of axial exhaust turbine group according to claim 2, it is characterized in that: described exhaust casing also comprises two strip plates (18) and a plurality of lifting thread head (44), the upper-end surface of arc boatswain chair (8) evenly is fixed with a plurality of lifting thread heads (44), be fixed with respectively a strip plate (18) on the upper-end surface of arc boatswain chair (8) both sides minor face, each strip plate (18) is fixed on the housing of the interior semicircular shell of square framework (12) (10).
7. a kind of exhaust casing of axial exhaust turbine group according to claim 1, it is characterized in that: described exhaust casing also comprises a plurality of wedge shape gussets (30), a plurality of wedge shape gussets (30) evenly are arranged on the outer side wall of two semicircular ring (27-2), and two of wedge shape gusset (30) face directly on the side that is separately fixed at semicircular ring sidewall (27-2) and the 5th flange (27-1).
8. a kind of exhaust casing of axial exhaust turbine group according to claim 2, is characterized in that: be processed with two through holes (45) on described rectangular cover plate (15).
9. a kind of exhaust casing of axial exhaust turbine group according to claim 1, it is characterized in that: described exhaust casing also comprises temperature and pressure control gear (5), and temperature and pressure control gear (5) is arranged near bearing housing (9-2) leftward position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310066122.6A CN103147805B (en) | 2013-03-01 | 2013-03-01 | Steam exhausting cylinder of axially-exhausting steam turbine unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310066122.6A CN103147805B (en) | 2013-03-01 | 2013-03-01 | Steam exhausting cylinder of axially-exhausting steam turbine unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925011B (en) * | 2014-04-17 | 2015-09-16 | 哈尔滨汽轮机厂有限责任公司 | A kind of 9F level black soy sauce axial exhaust turbine |
| CN108825315A (en) * | 2018-09-21 | 2018-11-16 | 中国船舶重工集团公司第七0三研究所 | A kind of marine turbing bearing housing support construction |
| CN111927581A (en) * | 2020-09-08 | 2020-11-13 | 杭州汽轮机股份有限公司 | Multi-surface supported welding exhaust cylinder of industrial steam turbine |
| CN112186952A (en) * | 2020-09-30 | 2021-01-05 | 中车株洲电机有限公司 | Permanent magnet traction motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925011B (en) * | 2014-04-17 | 2015-09-16 | 哈尔滨汽轮机厂有限责任公司 | A kind of 9F level black soy sauce axial exhaust turbine |
| CN108825315A (en) * | 2018-09-21 | 2018-11-16 | 中国船舶重工集团公司第七0三研究所 | A kind of marine turbing bearing housing support construction |
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| CN111927581A (en) * | 2020-09-08 | 2020-11-13 | 杭州汽轮机股份有限公司 | Multi-surface supported welding exhaust cylinder of industrial steam turbine |
| CN112186952A (en) * | 2020-09-30 | 2021-01-05 | 中车株洲电机有限公司 | Permanent magnet traction motor |
| CN112186952B (en) * | 2020-09-30 | 2023-04-25 | 中车株洲电机有限公司 | Permanent magnet traction motor |
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| CN103147805B (en) | 2014-11-26 |
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Effective date of registration: 20221220 Address after: 150000 building 3, high tech production base, Nangang District, Harbin City, Heilongjiang Province Patentee after: HARBIN TURBINE Co.,Ltd. Patentee after: HADIAN POWER EQUIPMENT NATIONAL ENGINEERING RESEARCH CENTER CO.,LTD. Address before: 150046 No. three power road 345, Xiangfang District, Heilongjiang, Harbin Patentee before: HARBIN TURBINE Co.,Ltd. |
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