CN117145589B - Zero-output bypass cooling steam adjusting device of low-pressure cylinder of steam turbine - Google Patents
Zero-output bypass cooling steam adjusting device of low-pressure cylinder of steam turbine Download PDFInfo
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- CN117145589B CN117145589B CN202311425692.XA CN202311425692A CN117145589B CN 117145589 B CN117145589 B CN 117145589B CN 202311425692 A CN202311425692 A CN 202311425692A CN 117145589 B CN117145589 B CN 117145589B
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- 238000001816 cooling Methods 0.000 title claims abstract description 37
- 210000001503 joint Anatomy 0.000 claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 20
- 230000000903 blocking effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- 230000007363 regulatory process Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003750 conditioning effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000013011 mating Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
The invention relates to the field of zero-output regulation of low-pressure cylinders of steam turbines, and discloses a zero-output bypass cooling steam regulating device of a low-pressure cylinder of a steam turbine, which comprises a steam inlet unit and a power unit, wherein the steam inlet unit comprises a steam inlet pipe, a regulating pipe and a butt joint pipe, the regulating pipe is in sliding fit with the steam inlet pipe, the butt joint pipe is in sliding fit with the regulating pipe, the tail end of the butt joint pipe is connected with a steam inlet end of the low-pressure cylinder, arc-shaped sliding grooves are symmetrically arranged on the side edges of the regulating pipe, and a circular shifting piece is arranged in the middle of the regulating pipe, and the zero-output bypass cooling steam regulating device has the beneficial effects that: the main shaft is driven to rotate by acquiring power from the end part of the low-pressure cylinder, so that the centrifugal block is opened to push the sliding sleeve to move outwards, the adjusting pipe is rotated by different angles, gaps with different degrees are formed between the adjusting pipe and the end part of the butt joint pipe, and the steam inlet amount into the low-pressure cylinder is changed.
Description
Technical Field
The invention relates to the technical field of zero-output adjustment of a low-pressure cylinder of a steam turbine, in particular to a zero-output bypass cooling steam adjusting device of the low-pressure cylinder of the steam turbine.
Background
The low pressure cylinder zero output heat supply technology adopts a hydraulic butterfly valve capable of being completely sealed to cut off the original steam inlet pipeline of the low pressure cylinder under the high vacuum operation condition of the low pressure cylinder, a small amount of cooling steam is introduced through a newly added bypass pipeline for taking away the blast heat generated by the rotation of the low pressure rotor after the low pressure cylinder zero output transformation.
Disclosure of Invention
The invention is provided in view of the problems of inconvenient adjustment and influence on normal working of the low pressure cylinder in the above and/or existing low pressure cylinder zero-output bypass cooling steam adjusting device of the steam turbine.
Accordingly, the present invention is directed to a low pressure cylinder zero-force bypass cooling steam conditioning apparatus for a steam turbine.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a zero-output bypass cooling steam adjusting device of steam turbine low pressure cylinder, its includes, the steam inlet unit includes steam inlet pipe, governing pipe and butt joint pipe, governing pipe and steam inlet pipe sliding fit, butt joint pipe and governing pipe sliding fit, butt joint pipe end-to-end connection low pressure cylinder steam inlet end, governing pipe side symmetry is provided with the arc spout, the governing pipe middle part is provided with circular plectrum.
As a preferable scheme of the low-pressure cylinder zero-output bypass cooling steam adjusting device of the steam turbine, the invention comprises the following steps: the steam inlet pipe comprises a fixed plate arranged at the end part of the steam inlet pipe, fixing holes are formed in the periphery of the fixed plate, a sealing pipe is arranged at the end part of the steam inlet pipe and is in sliding fit with the adjusting pipe, and a spring sleeve is arranged on the inner side of the sealing pipe.
As a preferable scheme of the low-pressure cylinder zero-output bypass cooling steam adjusting device of the steam turbine, the invention comprises the following steps: the steam inlet pipe further comprises a core pipe arranged in the steam inlet pipe, a blocking table is arranged on the side edge of the core pipe, and chute guide balls are symmetrically arranged on the inner side of the steam inlet pipe.
As a preferable scheme of the low-pressure cylinder zero-output bypass cooling steam adjusting device of the steam turbine, the invention comprises the following steps: the arc chute is in sliding fit with the chute guide ball, the end part of the spring sleeve is attached to the blocking table, and the spring sleeve is in sliding fit with the core tube.
As a preferable scheme of the low-pressure cylinder zero-output bypass cooling steam adjusting device of the steam turbine, the invention comprises the following steps: the adjusting tube further comprises a telescopic hole arranged on the side edge of the adjusting tube, an adjusting ring is arranged on the side edge of the telescopic hole, telescopic rods are symmetrically arranged on two sides of the adjusting ring, and the telescopic rods are in sliding fit with the telescopic hole.
As a preferable scheme of the low-pressure cylinder zero-output bypass cooling steam adjusting device of the steam turbine, the invention comprises the following steps: the butt joint pipe comprises sealing blocks symmetrically arranged on the inner side of the butt joint pipe, adjusting grooves are formed in the side edges of the sealing blocks, and the adjusting grooves are in sliding fit with the adjusting rings.
As a preferable scheme of the low-pressure cylinder zero-output bypass cooling steam adjusting device of the steam turbine, the invention comprises the following steps: the power unit comprises a main shaft, a support frame and an adjusting lever, wherein the main shaft acquires power from the low-pressure cylinder end of the steam turbine, the support frame fixes the whole steam inlet unit, and one end of the adjusting lever is movably matched with the main shaft.
As a preferable scheme of the low-pressure cylinder zero-output bypass cooling steam adjusting device of the steam turbine, the invention comprises the following steps: the main shaft comprises a centrifugal shaft, a reciprocating sleeve is arranged at the end part of the centrifugal shaft, centrifugal blocks are symmetrically arranged at two sides of the centrifugal shaft, a blocking block is further arranged at the inner side of the centrifugal shaft, a matching ring is arranged at the end part of the reciprocating sleeve, and an arc-shaped opening is formed in the end part of the reciprocating sleeve.
As a preferable scheme of the low-pressure cylinder zero-output bypass cooling steam adjusting device of the steam turbine, the invention comprises the following steps: the support frame includes slide and support, the slide is including setting up in its inside slider of stirring, the support includes the horizontal pole, the horizontal pole middle part is provided with articulated pole.
As a preferable scheme of the low-pressure cylinder zero-output bypass cooling steam adjusting device of the steam turbine, the invention comprises the following steps: the adjusting lever comprises a middle rod, a driving rod and a driven rod, wherein the driving rod is in sliding fit with the middle rod, the driven rod is in sliding fit with the middle rod, and the driving rod is hinged with the matching ring.
The invention has the beneficial effects that: the main shaft is driven to rotate by acquiring power from the end part of the low-pressure cylinder, the centrifugal block is opened to push the sliding sleeve to move outwards, the sliding sleeve is driven to move outwards to extend into the inner side of the steam inlet pipe by the lever, the adjusting sleeve rotates and generates inward pressure under the action of the arc-shaped sliding groove and the sliding groove guide ball, and then the opening of the end part of the butt joint pipe is reduced, so that the steam inlet of the low-pressure cylinder is reduced, the running condition of zero output of the low-pressure cylinder is influenced, when the rotating speed is reduced, the adjusting pipe is pushed out of the steam inlet pipe due to the action of the spring, the other end of the lever returns to the original position, and the opening size of the butt joint pipe and the adjusting pipe matched is changed again by rotating the adjusting pipe.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a low pressure cylinder zero-force bypass cooling steam conditioning apparatus for a steam turbine in an embodiment.
FIG. 2 is a side view of a low pressure cylinder zero-force bypass cooling steam conditioning device of a steam turbine in an embodiment.
FIG. 3 is an exploded view of the matching of the inlet pipe and the conditioning pipe of the low pressure cylinder zero-output bypass cooling steam conditioning device of the steam turbine in an embodiment.
FIG. 4 is a cross-sectional view of an inlet duct of a low pressure cylinder zero-force bypass cooling steam conditioning device of a steam turbine in an embodiment.
FIG. 5 is a schematic diagram showing the cooperation of the adjusting pipe and the butt joint pipe of the low pressure cylinder zero-output bypass cooling steam adjusting device of the steam turbine in the embodiment.
FIG. 6 is an exploded view of a tuning tube and a butt tube of a low pressure cylinder zero-force bypass cooling steam regulator of a steam turbine according to an embodiment.
FIG. 7 is a schematic diagram of a spindle centrifugal block and reciprocating sleeve combination of a low pressure cylinder zero-output bypass cooling steam conditioning device for a steam turbine in an embodiment.
FIG. 8 is a schematic diagram of a combination of a cross-sectional view of a spindle centrifugal block and a reciprocating sleeve of a low-pressure cylinder zero-output bypass cooling steam regulator of a steam turbine in an embodiment.
FIG. 9 is a schematic diagram of a variation of the regulation of the low pressure cylinder zero-force bypass cooling steam regulator of the steam turbine according to the embodiment.
In the figure: 100. a steam inlet unit; 101. a steam inlet pipe; 102. an adjusting tube; 103. a butt joint pipe; 1011. a fixing plate; 10111. a fixing hole; 1012. sealing the tube; 10121. a spring sleeve; 1013. a core tube; 10131. a blocking table; 10132. a chute guide ball; 1021. an arc chute; 1022. a round plectrum; 1023. a telescopic hole; 1024. an adjusting ring; 10241. a telescopic rod; 1031. a closing block; 1032. an adjustment tank; 200. a power unit; 201. a main shaft; 202. a support frame; 203. an adjusting lever; 2011. a mandrel is detached; 2012. a reciprocating sleeve; 20111. a centrifugal block; 20112. a blocking piece; 20121. a mating ring; 20122. an arc-shaped opening; 2021. a slideway; 2022. a bracket; 20211. the sliding block is toggled; 20221. a cross bar; 202211, hinge rod; 2031. a middle rod; 2032. a driving rod; 2033. a driven rod.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 and 2, a first embodiment of the present invention provides a low pressure cylinder zero-output bypass cooling steam adjusting device of a steam turbine, which includes a steam inlet unit 100 and a power unit 200, wherein the steam inlet unit 100 can adjust the opening size of a pipe orifice of an abutting pipe 103, and the power unit 200 can adjust required power.
Specifically, the steam inlet unit 100 includes a steam inlet pipe 101, a regulating pipe 102 and a butt joint pipe 103, the regulating pipe 102 is in sliding fit with the steam inlet pipe 101, the butt joint pipe 103 is in sliding fit with the regulating pipe 102, the tail end of the butt joint pipe 103 is connected with a steam inlet end of a low-pressure cylinder, arc sliding grooves 1021 are symmetrically formed in the side edges of the regulating pipe 102, and a round poking plate 1022 is arranged in the middle of the regulating pipe 102.
When the device is used, the bypass cooling steam is introduced into the steam inlet unit 100, enters the adjusting pipe 102 through the steam inlet pipe 101, then enters the butt joint pipe 103, the end part of the butt joint pipe 103 is connected with the low-pressure cylinder, the bypass cooling steam can enter the low-pressure cylinder, the arc chute 1021 can move along the chute guide ball on the inner side of the steam inlet pipe 101 to rotate, the opening size of the end part of the butt joint pipe 103 is changed, the gas flow entering the low-pressure cylinder is affected, the rotating speed of the low-pressure cylinder is affected by the flow, the power unit is fed back, the adjusting pipe 102 is regulated and controlled again, and the fluid trafficability of the end part of the butt joint pipe 103 is changed again.
Example 2
Referring to fig. 2 to 7, a second embodiment of the present invention is different from the first embodiment in that: the steam inlet pipe 101 comprises a fixing plate 1011 arranged at the end part of the steam inlet pipe 101, fixing holes 10111 are formed in the periphery of the fixing plate 1011, a sealing pipe 1012 is arranged at the end part of the steam inlet pipe 101, the sealing pipe 1012 is in sliding fit with the adjusting pipe 102, and a spring sleeve 10121 is arranged on the inner side of the sealing pipe 1012.
Further, the steam inlet pipe 101 further comprises a core pipe 1013 arranged in the steam inlet pipe 101, a blocking table 10131 is arranged on the side edge of the core pipe 1013, chute guide balls 10132 are symmetrically arranged on the inner side of the steam inlet pipe 101, the arc chute 1021 is in sliding fit with the chute guide balls 10132, the end part of a spring sleeve 10121 is attached to the blocking table 10131, and the spring sleeve 10121 is in sliding fit with the core pipe 1013.
Preferably, the adjusting tube 102 further comprises a telescopic hole 1023 disposed at a side edge of the adjusting tube, an adjusting ring 1024 is disposed at a side edge of the telescopic hole 1023, telescopic rods 10241 are symmetrically disposed at two sides of the adjusting ring 1024, the telescopic rods 10241 are slidably matched with the telescopic hole 1023, the butt-joint tube 103 comprises a sealing block 1031 symmetrically disposed at an inner side of the butt-joint tube, an adjusting groove 1032 is disposed at a side edge of the sealing block 1031, and the adjusting groove 1032 is slidably matched with the adjusting ring 1024.
Specifically, the fixing plate 1011 is installed at a port of the bypass cooling steam, and is connected with a steam source of the cooling steam to obtain the cooling steam, the fixing hole 10111 is fixed through a bolt, the sealing tube 1012 ensures the tightness of the adjusting tube 102 in the adjusting process, the spring sleeve 10121 can provide the resetting capability for the adjusting tube 102, the telescopic hole 1023 is in sliding fit with the telescopic rod 10241, the sealing block 1031 is matched with the adjusting ring 1024, the telescopic rod 10241 is driven to rotate through the rotation of the adjusting tube 102, the adjusting ring 1024 at the end part of the sealing block is rotated by a certain angle to form an included angle with the sealing block 1031, and the adjusting groove 1032 is in sliding clamping with the adjusting ring 1024, so that the adjusting ring 1024 can only rotationally slide in the adjusting groove 1032, and the telescopic rod 10241 ensures the connection of the adjusting tube 102 and the adjusting ring 1024 to enable the adjusting ring 1024 to synchronously rotate.
Example 3
Referring to fig. 1 to 9, a third embodiment of the present invention is based on the first two embodiments: the power unit 200, the power unit 200 includes main shaft 201, support frame 202 and adjusting lever 203, and main shaft 201 obtains power from the steam turbine low pressure cylinder end, and support frame 202 is fixed whole admission unit 100, and adjusting lever 203 one end and main shaft 201 clearance fit.
Further, the main shaft 201 includes a centrifugal shaft 2011, a reciprocating sleeve 2012 is arranged at the end of the centrifugal shaft 2011, centrifugal blocks 20111 are symmetrically arranged at two sides of the centrifugal shaft 2011, a blocking block 20112 is further arranged at the inner side of the centrifugal shaft 2011, a matching ring 20121 is arranged at the end of the reciprocating sleeve 2012, and an arc-shaped opening 20122 is formed at the end of the reciprocating sleeve 2012.
Preferably, the support 202 includes a slide 2021 and a bracket 2022, the slide 2021 includes a toggle slider 20211 disposed therein, the bracket 2022 includes a cross bar 20221, and a hinge rod 202211 is disposed in the middle of the cross bar 20221.
Preferably, the adjusting lever 203 comprises a middle rod 2031, a driving rod 2032 and a driven rod 2033, wherein the driving rod 2032 is in sliding fit with the middle rod 2031, the driven rod 2033 is in sliding fit with the middle rod 2031, and the driving rod 2032 is hinged with the matching ring 20121.
Specifically, the main shaft 201 obtains the rotation force of the low-pressure cylinder of the steam turbine, converts the rotation force into centrifugal force through the off-axis shaft 2011, so that the centrifugal block 20111 is thrown away by a certain angle, in the throwing process, the reciprocating sleeve 2012 in contact with the centrifugal block 20111 is pushed away by the centrifugal block 20111, an arc-shaped opening 20122 is formed in the contact part of the reciprocating sleeve 2012 and the centrifugal block 20111, the arc-shaped opening 20122 enables the contact surface between the reciprocating sleeve 2012 and the side edge of the centrifugal block 20111 to be larger, the service life of the reciprocating sleeve is prolonged, and abrasion is reduced.
Further, when not starting, the centrifugal block 20111 is attached to the blocking block 20112 at the inner side of the main shaft, at this time, the arc-shaped opening 20122 of the reciprocating sleeve 2012 is contacted with the arc edge of the end part of the centrifugal block 20111, so that the reciprocating sleeve 2012 is limited, the condition that the reciprocating sleeve 2012 is directly sleeved on the centrifugal block 20111 is avoided, the end part of the centrifugal block structure is hinged, and the gravity center is at the other end, so that the reciprocating sleeve can be thrown out when the reciprocating sleeve 2012 is subjected to the action of rotation force.
Furthermore, the slide 2021 provides a sliding space for the toggle slider 20211, the bracket 2022 fixes the device, so as to improve the stability of the structure, the toggle slider 20211 performs translational motion inside the slide 2021, the hinge rod 202211 in the middle of the cross rod 20221 serves as a fulcrum of the whole lever structure, one end of the lever structure is connected with the mating ring 20121 in a connecting manner, the middle of the driving rod 2032 is hinged with the hinge rod 202211, and two ends of the driving rod 2032 are hollow structures, so that the driving rod 2032 and the driven rod 2033 are in sliding fit with the middle rod 2031.
Preferably, the reciprocating sleeve 2012 pushes the adjusting lever 203 to swing, the driven rod 2033 is hinged with the poking slide block 20211, the poking slide block 20211 is in sliding fit with the circular poking plate 1022, and the adjusting tube 102 is pushed to reciprocate, during the reciprocating motion, the arc-shaped sliding chute 1021 in the adjusting tube 102 is in sliding fit with the sliding chute guide ball 10132, so that the adjusting ring 1024 rotates, the sealing block 1031 is matched with the adjusting ring 1024, and the rotation of the adjusting tube 102 drives the telescopic rod 10241 to rotate, so that the adjusting ring 1024 at the end part rotates by a certain angle to form an included angle with the sealing block 1031.
Preferably, the adjusting slot 1032 is slidably engaged with the adjusting ring 1024, so that the adjusting ring 1024 can only slide in the adjusting slot 1032 in a rotating manner, and the telescopic rod 10241 ensures the connection between the adjusting tube 102 and the adjusting ring 1024 to rotate synchronously.
In summary, the main shaft is driven to rotate by acquiring power from the end part of the low-pressure cylinder, the centrifugal block is opened to push the sliding sleeve to move outwards, the sliding sleeve is driven to move outwards to extend into the inner side of the steam inlet pipe by the lever, the adjusting sleeve rotates and generates inward pressure under the action of the arc-shaped sliding groove and the sliding groove guide ball, and then the opening of the end part of the butt joint pipe is reduced, so that the steam inlet of the low-pressure cylinder is reduced, the zero-output running condition of the low-pressure cylinder is influenced, when the rotating speed is reduced, the adjusting pipe is pushed out of the steam inlet pipe due to the action of the spring, the other end of the lever returns to the original position, and the opening size of the butt joint pipe matched with the adjusting pipe is changed again by rotating the adjusting pipe.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (1)
1. A zero-output bypass cooling steam adjusting device of a low-pressure cylinder of a steam turbine is characterized in that: comprising the steps of (a) a step of,
the steam inlet unit (100), steam inlet unit (100) includes steam inlet pipe (101), regulation pipe (102) and butt joint pipe (103), regulation pipe (102) and steam inlet pipe (101) sliding fit, butt joint pipe (103) and regulation pipe (102) sliding fit, butt joint pipe (103) end-to-end connection low pressure cylinder steam inlet end, regulation pipe (102) side symmetry is provided with arc spout (102 a), regulation pipe (102) middle part is provided with circular plectrum (102 b), steam inlet pipe (101) are including setting up fixed plate (101 a) in its tip, fixed plate (101 a) are provided with fixed orifices (101 a-1) all around, steam inlet pipe (101) tip is provided with sealed tube (101 b), sealed tube (101 b) and regulation pipe (102) sliding fit, sealed tube (101 b) inboard is provided with spring housing (101 b-1), steam inlet pipe (101) still including setting up in its inside core tube (101 c), core tube (101 c) are provided with circular plectrum (102 b-1), guide ball (101 c-1) are blocked with arc spout (101 c-1) and are equipped with guide ball (101 c-1), the spring sleeve (101 b-1) is in sliding fit with the core tube (101 c); the method comprises the steps of,
the power unit (200), power unit (200) includes main shaft (201), support frame (202) and regulating lever (203), and main shaft (201) obtains power from steam turbine low pressure cylinder end, and support frame (202) are fixed whole admission unit (100), regulating lever (203) one end and main shaft (201) clearance fit, main shaft (201) are including off-axis (201 a), off-axis (201 a) tip is provided with reciprocating sleeve (201 b), off-axis (201 a) both sides symmetry is provided with centrifugal piece (201 a-1), off-axis (201 a) inboard still is provided with blocking piece (201 a-2), reciprocating sleeve (201 b) tip is provided with cooperation ring (201 b-1), reciprocating sleeve (201 b) tip is provided with arc mouth (201 b-2), butt joint pipe (103) are including the symmetry setting up in closed piece (103 a) of its inboard, closed piece (103 a) side is provided with regulating groove (103 b), regulating groove (103 b) and regulating ring (102 d) are provided with centrifugal piece (201 a), off-axis (201 a) inboard still is provided with blocking piece (201 a-2), reciprocating sleeve (201 b) tip is provided with cooperation ring (202 b) including setting up in slide (202 b) and slide (202 b) are including slide (202 b-1), the middle part of the cross rod (202 b-1) is provided with a hinging rod (202 b-11), the adjusting lever (203) comprises a middle rod (203 a), a driving rod (203 b) and a driven rod (203 c), the driving rod (203 b) is in sliding fit with the middle rod (203 a), the driven rod (203 c) is in sliding fit with the middle rod (203 a), and the driving rod (203 b) is hinged with the matching ring (201 b-1);
when the rotary compressor is used, the main shaft (201) acquires the rotary force of the low-pressure cylinder of the steam turbine, the rotary force is converted into centrifugal force through the eccentric shaft (201 a), the centrifugal block (201 a-1) is thrown away by a certain angle, in the throwing process, the reciprocating sleeve (201 b) contacted with the centrifugal block (201 a-1) is pushed away by the centrifugal block (201 a-1), the fixed plate (101 a) is arranged at a port of bypass cooling steam and is connected with a steam source of the cooling steam to acquire the cooling steam, the arc-shaped sliding groove (102 a) moves along the sliding groove guide ball (101 c-2) at the inner side of the steam inlet pipe (101), so that the regulating pipe (102) rotates, the fixed hole (101 a-1) is fixed through a bolt, the sealing pipe (101 b) ensures the sealing performance of the regulating pipe (102) in the regulating process, the spring sleeve (101 b-1) can provide resetting capacity for the regulating pipe (102), the telescopic hole (102 c) is in sliding fit with the telescopic rod (102 d-1), the sealing block (103 a) is matched with the regulating ring (102 d) to drive the telescopic rod (102 d-102 d) to rotate, and the sealing block (103 a) rotates at the certain angle to enable the regulating ring (102 d) to rotate, and the regulating ring (102 d) to be in the rotating direction is closed with the regulating ring (102 d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311425692.XA CN117145589B (en) | 2023-10-31 | 2023-10-31 | Zero-output bypass cooling steam adjusting device of low-pressure cylinder of steam turbine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311425692.XA CN117145589B (en) | 2023-10-31 | 2023-10-31 | Zero-output bypass cooling steam adjusting device of low-pressure cylinder of steam turbine |
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| CN117145589A CN117145589A (en) | 2023-12-01 |
| CN117145589B true CN117145589B (en) | 2024-01-19 |
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| CN116906134A (en) * | 2023-09-13 | 2023-10-20 | 华能济南黄台发电有限公司 | Steam turbine low pressure cylinder based on zero output of low pressure cylinder |
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|---|---|---|---|---|
| GB540855A (en) * | 1938-11-12 | 1941-11-03 | Raul Pateras Pescara | Improvements relating to power plants comprising a plurality of air or gas compressors or gas generators, and particularly free piston compressors or gas generators |
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| CN107524478A (en) * | 2017-07-18 | 2017-12-29 | 华电电力科学研究院 | For the low pressure (LP) cylinder cooling device of extraction condensing back pressure system and its application |
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| CN117145589A (en) | 2023-12-01 |
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