Steam conveying device of steam turbine

Abstract

The invention relates to the technical field of steam conveying, in particular to a steam turbine steam conveying device which comprises a fixing plate, a primary adjusting mechanism and a secondary adjusting mechanism. Through cooperation of a first pushing set and partition plates in the primary adjusting mechanism, the first pushing set pushes the partition plates blocking through holes one by one in the rotating process of a rotating rod, the steam passing area is gradually increased, and therefore the flow of steam in a pipeline is increased; secondly, the steam passing area is further increased through cooperation between a second pushing set and a corresponding flow limiting plate, so that the flow of the steam is increased, the flow of the steam in the pipeline is adjusted multiple times through rotation of a rotating rod in the single direction, the adjusting speed is increased, and the adjusting range of the flow of the steam is increased; by means of the mode that steam passes through the multiple through holes at the same time, the problem that the gas conveying pipeline is blocked by the adjusting device due to blockage of the through holes is solved.

Description

Technical Field

[0001] The invention relates to the technical field of steam transportation, in particular to a steam turbine steam transportation device. Background Art

[0002] A steam turbine is a rotary power machine that converts the thermal energy of steam into mechanical energy. It is widely used in power generation and energy conversion in industrial processes. When working, it uses high-temperature and high-pressure steam to drive the turbine blades to rotate, thereby driving the generator to work. The generator's power generation frequency is proportional to the turbine's speed. When the steam turbine is working, it is necessary to adjust the turbine's speed according to the required power generation frequency. The speed of the turbine in the steam turbine is controlled by the flow rate of high-temperature steam.

[0003] The existing control of steam flow is mainly carried out by a regulating valve located in the gas pipeline at the steam input end of the steam turbine to control the steam flow in the steam transmission pipeline. The working principle of the regulating valve is mainly to change the position of the valve core and the steam passage area between the valve core and the valve, thereby adjusting the steam flow in the gas transmission pipeline.

[0004] The above-mentioned adjustment process has the following problems: In the existing gas pipeline, a single valve is usually used to adjust the steam flow in the gas pipeline. In the existing method of adjusting the steam flow in the steam pipeline through a regulating valve, the adjustment range of the steam flow is small through the cooperation between the single valve and the valve core. Secondly, the valve and the valve core may undergo thermal expansion under high temperature, and the matching clearance between the valve and the valve core may change due to the high temperature thermal expansion, thereby affecting the control effect of the regulating valve on the steam flow. If the valve and the valve core of the regulating valve are stuck, the entire gas pipeline will be blocked by the regulating valve. Summary of the invention

[0005] Based on this, it is necessary to provide a steam turbine steam delivery device to solve the above technical problems.

[0006] The present application provides a steam turbine steam delivery device, comprising: a gas delivery pipeline and a fixed plate fixedly installed in the gas delivery pipeline, wherein the fixed plate is fixedly arranged on the inner wall of the gas delivery pipeline, a plurality of through holes are penetrated through the fixed plate, a plurality of sliding grooves corresponding to the positions of the corresponding through holes are opened on the left end face of the fixed plate, and the sliding grooves are communicated with the through holes at the corresponding positions, a partition plate for blocking the through holes is slidably arranged in the sliding groove, a plurality of arc grooves corresponding to the positions of the sliding grooves are opened on the fixed plate, the arc grooves are located on the left side of the sliding grooves and are communicated with the corresponding through holes, a flow limiting plate for limiting the steam flow is slidably arranged in the arc groove, a rotating rod is rotatably penetrated through the fixed plate, and a rotating plate is fixedly arranged on the left end face of the rotating rod.

[0007] A primary adjustment mechanism is provided on the rotating plate, and the primary adjustment mechanism includes a pushing column. A pushing column is fixedly provided on the left end face of each partition. A pushing group 1 for driving the pushing column to move is provided on the rotating plate. A rectangular plate located on the front side of the gas pipeline is fixedly provided on the outer wall of the gas pipeline through a fixing bar, and a driving group for driving the rotating rod to rotate is provided on the rectangular plate.

[0008] The rotating rod is provided with a secondary regulating mechanism, which includes a rotating cylinder. The rotating rod is rotatably sleeved with a rotating cylinder, and the rotating cylinder is fixed with a rotating ring through a connecting strip. The rotating ring is provided with a driving group 2 for driving the flow limiting plate to move.

[0009] According to a preferred embodiment, the drive group includes a transmission rod, a transmission rod with an axis extending from front to rear and rotating through the rectangular plate, a rotating disk is fixedly provided on the front end face of the transmission rod, a bevel gear 1 is fixedly provided on the rear end face of the transmission rod, and a bevel gear 2 meshing with bevel gear 1 is fixedly provided on the right end face of the rotating rod.

[0010] According to a favorable embodiment, the fixed sleeve on the transmission rod is provided with a ratchet located on the rear side of the rectangular plate, the rear end surface of the rectangular plate is rotatably provided with a pawl cooperating with the ratchet, a horizontal section is provided on the right side of the pawl, and a spiral spring is fixedly provided between the pawl and the rectangular plate.

[0011] According to a favorable embodiment, a horizontal plate is fixedly provided on the front end face of the rectangular plate, and a lower pressure strip is slidably provided on the horizontal plate and passes through the rectangular plate. The lower pressure strip is divided into a horizontal section, an inclined section and a horizontal section from front to back, and the inclined section of the lower pressure strip is inclined upward from front to back, and the lower pressure strip cooperates with the horizontal section of the ratchet.

[0012] According to a favorable embodiment, the pushing group 1 includes a slide groove, the rotating plate is provided with a slide groove running through it, a sliding block is slidably arranged in the slide groove, a rectangular groove is provided on the right end face of the sliding block, a pushing bar is slidably arranged in the rectangular groove, a spring 1 is fixedly arranged between the pushing bar and the rectangular groove, a plurality of pushing blocks 1 distributed circumferentially and corresponding to the positions of the sliding grooves are fixedly arranged on the right end face of the fixed plate, the pushing block 1 is a right triangle, and the inclined surface of the pushing block 1 faces the direction of the corresponding through hole, a plurality of pushing blocks 2 distributed circumferentially and corresponding to the positions of the sliding grooves are fixedly arranged on the right end face of the fixed plate, the pushing block 2 is a right triangle, and the inclined surface of the pushing block 2 faces the opposite direction to the inclined surface of the corresponding pushing block 1, and the pushing block 2 is closer to the rotating rod than the pushing block 1.

[0013] According to a favorable embodiment, a transmission column is fixedly provided on the left end face of the sliding block, and a transmission bar is fixedly provided on the inner wall of the gas pipeline through a vertical bar. The transmission bar is divided into an inclined section, an arc section and an inclined section from front to back, and the two inclined sections of the transmission bar are inclined upward from front to back.

[0014] According to a favorable embodiment, a placement groove is formed on the sliding block, two positioning posts are slidably arranged in the placement groove, a spring three is fixedly arranged between the two positioning posts, and two positioning grooves are formed on the inner walls on both sides of the sliding groove corresponding to the two positioning posts.

[0015] According to a favorable embodiment, two cylindrical grooves are provided on the inner wall of the sliding groove close to the rotating rod, and a limiting column is slidably arranged in the cylindrical groove, and a second spring is fixedly arranged between the limiting column and the inner wall of the corresponding cylindrical groove.

[0016] According to a favorable embodiment, the push group 2 includes a connecting rod, a connecting rod is fixedly arranged between the rotating ring and each flow limiting plate, a push plate located on the left side of the rotating ring is fixedly sleeved on the rotating rod, and a fixed block is fixedly arranged on the rotating ring.

[0017] According to a favorable embodiment, a plurality of fixing rods corresponding to the positions of the through holes are fixedly arranged on the fixing plate, connecting plates are rotatably sleeved on the fixing rods and the connecting rods, and a spring four is fixedly arranged between two adjacent connecting plates.

[0018] In summary, the present invention includes at least one of the following beneficial effects: First, in the present invention, the steam flow in the pipeline is preliminarily regulated through the cooperation between the primary regulating mechanism and the multiple partitions, and then the steam flow in the pipeline is secondarily regulated through the cooperation between the secondary regulating mechanism and the multiple flow limiting plates. By changing the passage area of ​​the steam in the through hole, the steam flow in the steam pipeline is increased, the regulation speed is improved, and the regulation range of the steam flow is increased. Secondly, by allowing steam to pass through multiple through holes at the same time, the problem of the gas pipeline being blocked by the regulating device due to blockage of the through holes is reduced.

[0019] 2. In the present invention, through the cooperation between the push group 1 and the partition in the primary adjustment mechanism, the push group 1 pushes away the partitions that block the through holes one by one during the rotation of the rotating rod, and the area through which the steam passes gradually increases, thereby increasing the steam flow in the pipeline. Afterwards, through the cooperation between the push group 2 and the corresponding limiting plate, the area through which the steam passes is further increased, thereby increasing the steam flow. The steam flow in the pipeline is adjusted multiple times by rotating the rotating rod in a single direction, thereby increasing the adjustment speed and the adjustment range of the steam flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 A partial cross-sectional view of the three-dimensional structure of a steam turbine steam delivery device provided according to an embodiment of the present invention is shown.

[0022] Figure 2 The embodiment of the present invention provides Figure 1 A magnified view of the structure in the middle.

[0023] Figure 3 A partial cross-sectional view of the structure of a drive group, a ratchet wheel and a transmission rod provided according to an embodiment of the present invention is shown.

[0024] Figure 4 A partial cross-sectional view of the three-dimensional structure of a fixing plate, a sliding groove and a partition provided according to an embodiment of the present invention is shown.

[0025] Figure 5 The embodiment of the present invention provides Figure 4 A magnified view of the structure at B in the middle.

[0026] Figure 6 A partial cross-sectional view of the three-dimensional structure of a rotating plate, a pushing group 1 and a positioning column provided according to an embodiment of the present invention is shown.

[0027] Figure 7 A partial cross-sectional view of the three-dimensional structure of the push group 2, the flow limiting plate and the fixing plate provided according to an embodiment of the present invention is shown.

[0028] Figure 8 A left side view of a rotating plate, a through hole and a rectangular plate provided according to an embodiment of the present invention is shown.

[0029] Fig. 9 A partial structural cross-sectional view of a gas delivery pipeline, a push group 1 and a rotating rod provided according to an embodiment of the present invention is shown.

[0030] Fig.10 The embodiment of the present invention provides Fig. 9 A magnified view of the structure at center C.

[0031] The above drawings include the following reference numerals: 1. Fixed plate; 2. Through hole; 3. Sliding groove; 30. Partition plate; 31. Current limiting plate; 4. Rotating rod; 40. Rotating plate; 5. Primary adjustment mechanism; 50. Pushing column; 51. Pushing group 1; 510. Sliding groove; 511. Sliding block; 512. Pushing bar; 513. Spring 1; 514. Pushing block 1; 515. Pushing block 2; 52. Rectangular plate; 53. Driving group; 530. Transmission rod; 531. Rotating disk; 532. Bevel gear 1; 533. Bevel gear 2; 54. Ratchet; 541, pawl; 543, scroll spring; 544, lower pressure strip; 55, transmission column; 550, transmission bar; 551, positioning column; 552, spring three; 553, positioning groove; 56, cylindrical groove; 561, limit column; 562, spring two; 6, secondary adjustment mechanism; 60, rotating cylinder; 61, rotating ring; 610, fixing rod; 611, connecting plate; 612, spring four; 62, pushing group two; 620, connecting rod; 621, pushing plate; 622, fixing block. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] like Figure 1 , Figure 4 , Figure 7 and Fig. 9 As shown, a steam conveying device for a steam turbine comprises: a gas transmission pipeline and a fixed plate 1 fixedly installed in the gas transmission pipeline, the fixed plate 1 is fixedly arranged on the inner wall of the gas transmission pipeline, a plurality of through holes 2 are penetrated through the fixed plate 1, a plurality of sliding grooves 3 corresponding to the positions of the corresponding through holes 2 are opened on the left end face of the fixed plate 1, and the sliding grooves 3 are communicated with the through holes 2 at the corresponding positions, a partition 30 for blocking the through holes 2 is slidably arranged in the sliding grooves 3, a plurality of arc grooves corresponding to the positions of the sliding grooves 3 are opened on the fixed plate 1, the arc grooves are located on the left side of the sliding grooves 3 and are communicated with the corresponding through holes 2, a flow limiting plate 31 for limiting the steam flow is slidably arranged in the arc groove, a rotating rod 4 is rotatably penetrated through the fixed plate 1, and a rotating plate 40 is fixedly arranged on the left end face of the rotating rod 4.

[0034] like Figure 1 and Figure 4As shown, the rotating plate 40 is provided with a primary adjustment mechanism 5, and the primary adjustment mechanism 5 includes a pushing column 50. The left end surface of each partition 30 is fixedly provided with a pushing column 50, and the rotating plate 40 is provided with a pushing group 51 for driving the pushing column 50 to move. The outer wall of the gas pipeline is fixedly provided with a rectangular plate 52 located on the front side of the gas pipeline through a fixing bar, and the rectangular plate 52 is provided with a driving group 53 for driving the rotating rod 4 to rotate.

[0035] like Figure 1 and Figure 7 As shown, the rotating rod 4 is provided with a secondary adjustment mechanism 6, and the secondary adjustment mechanism 6 includes a rotating cylinder 60. The rotating rod 4 is rotatably sleeved with the rotating cylinder 60, and the rotating cylinder 60 is fixed with a rotating ring 61 through a connecting strip. The rotating ring 61 is provided with a driving group 2 62 for driving the limiting plate 31 to move.

[0036] In the initial state, there is a gap between the current limiting plate 31 and the through hole 2 (see Figure 7 ), when working, the driving group 53 works to rotate the rotating rod 4, and the rotating rod 4 drives the pushing group 1 51 to work through the rotating plate 40. The pushing group 1 51 works to push the partitions 30 in the multiple sliding grooves 3 one by one, so that the through holes 2 blocked by the partitions 30 are opened one by one, and the pushing group 1 51 pushes each partition 30 to move to the end of the corresponding sliding groove 3 away from the through hole 2 in turn, and the steam flows out from the gap between the limiting plate 31 and the through hole 2. After the rotating plate 40 rotates one circle, the pushing group 51 moves in the direction close to the rotating rod 45, and the pushing group 51 is no longer in contact with the pushing column 50 on the partition 30. Then, the rotating rod 4 continues to rotate to drive the pushing group 2 62 to work, and the pushing group 2 62 pushes the multiple limiting plates 31 to move synchronously. The movement of the limiting plate 31 changes the passage area of ​​the steam in the through hole 2, so that the flow rate of the steam output in the pipeline changes, thereby realizing the flow control of the steam.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the driving group 53 includes a transmission rod 530, and the transmission rod 530 with an axis extending from front to rear rotates on the rectangular plate 52, a rotating disk 531 is fixedly provided on the front end face of the transmission rod 530, a bevel gear 1 532 is fixedly provided on the rear end face of the transmission rod 530, and a bevel gear 2 533 meshing with the bevel gear 1 532 is fixedly provided on the right end face of the rotating rod 4.

[0038] like Figure 1 , Figure 2 and Figure 3As shown, the transmission rod 530 is fixedly sleeved with a ratchet 54 located on the rear side of the rectangular plate 52, and the rear end face of the rectangular plate 52 is rotatably provided with a pawl 541 that cooperates with the ratchet 54, and a horizontal section is provided on the right side of the pawl 541, and a spiral spring 543 is fixedly provided between the pawl 541 and the rectangular plate 52, and a horizontal plate is fixedly provided on the front end face of the rectangular plate 52, and a lower pressure strip 544 that passes through the rectangular plate 52 is slidably provided on the horizontal plate, and the lower pressure strip 544 is divided into a horizontal section, an inclined section and a horizontal section from front to back, and the inclined section of the lower pressure strip 544 is inclined upward from front to back, and the lower pressure strip 544 cooperates with the horizontal section of the pawl 541.

[0039] In the initial state, the rear horizontal section of the lower pressure strip 544 is in contact with the horizontal section of the pawl 541. During operation, the staff drives the transmission rod 530 to rotate through the rotating disk 531, and the transmission rod 530 drives the bevel gear 1 532 to rotate synchronously. The bevel gear 2 533 is rotated through the meshing between the bevel gear 1 532 and the bevel gear 2 533, and the bevel gear 2 533 drives the rotating plate 40 to rotate synchronously through the rotating rod 4. During the rotation of the transmission rod 530, the ratchet 54 rotates synchronously with the transmission rod 530, and the transmission rod 530 is prevented from rotating in the opposite direction through the cooperation between the ratchet 54 and the pawl 541, thereby limiting the reversal of the transmission rod 530.

[0040] like Figure 4 , Figure 6 and Fig.10 As shown, the pushing group 1 51 includes a slide groove 510, and the rotating plate 40 is provided with a slide groove 510, a sliding block 511 is slidably arranged in the slide groove 510, and a rectangular groove is provided on the right end surface of the sliding block 511, and a pushing strip 512 is slidably arranged in the rectangular groove, and a spring 1 513 is fixedly arranged between the pushing strip 512 and the rectangular groove, and a plurality of pushing blocks 1 514 distributed circumferentially and corresponding to the positions of the sliding groove 3 are fixedly arranged on the right end surface of the fixed plate 1, the pushing block 1 514 is a right triangle, and the inclined surface of the pushing block 1 514 faces the direction of the corresponding through hole 2, and a plurality of pushing blocks 2 515 distributed circumferentially and corresponding to the positions of the sliding groove 3 are fixedly arranged on the right end surface of the fixed plate 1, the pushing block 2 515 is a right triangle, and the inclined surface of the pushing block 2 515 is opposite to the inclined surface of the corresponding pushing block 1 514, and the pushing block 2 515 is close to the rotating rod 4 relative to the pushing block 1 514.

[0041] like Figure 4 , Figure 6 , Figure 8 and Fig.10As shown, a transmission column 55 is fixedly provided on the left end face of the sliding block 511, and a transmission bar 550 is fixedly provided on the inner wall of the gas pipeline through a vertical bar. The transmission bar 550 is divided into an inclined section, an arc section and an inclined section from front to back, and the two inclined sections of the transmission bar 550 are inclined upward from front to back. A placement groove is opened through the sliding block 511, and two positioning columns 551 are slidably arranged in the placement groove. A spring three 552 is fixedly provided between the two positioning columns 551, and two positioning grooves 553 are opened on the inner walls on both sides of the slide groove 510 corresponding to the two positioning columns 551.

[0042] like Figure 4 and Figure 5 As shown, two cylindrical grooves 56 are formed on the inner wall of the sliding groove 3 close to the rotating rod 4. A limiting column 561 is slidably arranged in the cylindrical groove 56. A second spring 562 is fixedly arranged between the limiting column 561 and the inner wall of the corresponding cylindrical groove 56.

[0043] In the initial state, all through holes 2 are blocked by the corresponding partitions 30 and are in a blocked state. The partition 30 contacts the limiting column 561 close to the side of the through hole 2, and the spring 2 562 is compressed and deformed. The elastic force generated by the deformation of the spring 2 562 acts on the partition 30 through the corresponding limiting column 561 to limit the position of the partition 30. The two positioning columns 551 are respectively located in the positioning grooves 553 on the side away from the rotating rod 4 in the slide groove 510. The position of the sliding block 511 is limited by the cooperation between the positioning grooves 553 on the side away from the rotating rod 4 and the positioning columns 551, so that the sliding block 511 is located on the side of the slide groove 510 away from the rotating rod 4. At this time, the pushing bar 512 and the pushing block 2 515 are staggered with each other to prevent the pushing block 2 515 from preventing the pushing bar 512 from moving.

[0044] During operation, the rotating plate 40 drives the sliding block 511 to rotate around the rotating rod 4, and the sliding block 511 drives the pushing bar 512 to rotate synchronously. After the pushing bar 512 rotates to contact with the pushing column 50, the pushing bar 512 pushes the partition 30 to move through the pushing column 50, and the partition 30 is pushed to the end of the sliding groove 3 away from the through hole 2, and the corresponding through hole 2 is in an open state. The partition 30 is limited by the limiting column 561 on the side away from the through hole 2 in the sliding groove 3. In the process of pushing the partition 30 to move, the pushing bar 512 moves to contact with the inclined surface of the pushing block 1 514, and the inclined surface of the pushing block 1 514 is pushed. The cooperation between the inclined surface and the pushing bar 512 enables the pushing block 514 to push the pushing bar 512 to move to the left, and the spring 513 is compressed and deformed. After the pushing bar 512 moves to the left until it is out of contact with the pushing column 50, the pushing bar 512 continues to rotate until it is out of contact with the pushing block 514. The elastic force generated by the deformation of the spring 513 pushes the pushing bar 512 to move to the right and reset. Then the rotating plate 40 continues to drive the pushing group 51 to rotate and push the partition 30 one by one until all the through holes 2 are in an open state. By opening the blocked through holes 2 one by one, the steam passage area is gradually increased, thereby gradually increasing the steam flow rate.

[0045] After all the through holes 2 are opened, the rotating plate 40 continues to rotate. At this time, the position of the sliding block 511 is limited by the cooperation between the positioning groove 553 and the positioning column 551 on the side away from the rotating rod 4, so that the sliding block 511 is located on the side of the sliding groove 510 away from the rotating rod 4. The rotating plate 40 drives the transmission column 55 to rotate synchronously through the sliding block 511. After the transmission column 55 rotates to contact the lower end surface of the inclined section on the rear side of the transmission bar 550, the transmission column 55 is The transmission column 55 pushes the sliding block 511 to move in the direction close to the rotating rod 4 until the transmission column 55 moves to contact the lower end surface of the arc section of the transmission bar 550, and the positioning column 551 moves to cooperate with the positioning groove 553 on the side close to the rotating rod 4. The position of the sliding block 511 is limited by the cooperation between the positioning groove 553 and the positioning column 551, so that the sliding block 511 is located on the side of the sliding groove 510 close to the rotating rod 4. At this time, the pushing bar 512 and the pushing block 514 are staggered with each other.

[0046] like Figure 1 and Figure 7 As shown, the push group 2 62 includes a connecting rod 620, and a connecting rod 620 is fixedly arranged between the rotating ring 61 and each limiting plate 31. A push plate 621 located on the left side of the rotating ring 61 is fixedly sleeved on the rotating rod 4, and a fixed block 622 is fixedly arranged on the rotating ring 61.

[0047] like Figure 7As shown, a plurality of fixing rods 610 corresponding to the positions of the through holes 2 are fixedly provided on the fixing plate 1, and connecting plates 611 are rotatably sleeved on the fixing rods 610 and the connecting rods 511, and a spring 612 is fixedly provided between two adjacent connecting plates 611.

[0048] In the initial state, the push plate 621 is located at the front side of the fixed block 622 (see Figure 7 ), when working, when the transmission column 55 moves to contact the arc section of the transmission bar 550, the push plate 621 rotates to contact the rear end surface of the fixed block 622, and then the rotating rod 4 drives the push plate 621 to continue to rotate, and the push plate 621 drives the rotating ring 61 to rotate through the fixed block 622, and the rotating ring 61 drives the limiting plate 31 to move synchronously through the connecting rod 620, and the movement of the connecting rod 620 drives the corresponding connecting plate 611 to move synchronously, and the movement of the connecting plate 611 causes the spring 4 612 to be stretched and deformed, and the movement of the limiting plate 31 increases the area of ​​the gas passing through the through hole 2, so that the flow rate of the steam output in the pipeline increases, thereby realizing the flow control of the steam, until all the limiting plates 31 are completely staggered with the corresponding through holes 2 (see Figure 8 ), at this time, the gas flow in the through hole 2 is the largest. During operation, the different opening areas of the multiple through holes 2 on the fixed plate 1 are adjusted according to the requirements of different steam flow rates, thereby realizing the control and regulation of the steam flow rate.

[0049] The pawl 541 is rotated to disengage from the ratchet 541 by pushing the lower pressure bar 544 backwards, and the pawl 541 is rotated to disengage from the ratchet 541 by pulling the lower pressure bar 544 backwards. By the cooperation between the pushing block 2 515 and the pushing bar 512, the pushing column 50 can prevent the pushing bar 512 from rotating after the partition 30 is reset, causing it to get stuck. After all the partitions 30 are moved to complete the blocking of the through hole 2, the transmission column 55 moves to contact the front inclined section of the transmission bar 550. Through the cooperation between the front inclined section of the transmission bar 550 and the transmission column 55, the transmission column 55 drives the sliding block 511 to move in the direction away from the rotating rod 4, avoiding the transmission column 55 from moving under the transmission bar 550, and through the cooperation between the rear inclined section of the transmission bar 550 and the transmission column 55, the transmission column 55 drives the sliding block 511 to move and reset in the direction away from the rotating rod 4. The positioning column 551 moves to cooperate with the positioning groove 553 on the side away from the rotating rod 4. Then the staff pulls the lower pressure bar 544 to move forward, and the elastic force generated by the deformation of the spiral spring 543 drives the pawl 541 to rotate and reset.

[0050] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0051] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steam turbine steam delivery device, characterized in that: include: A gas pipeline and a fixed plate (1) fixedly installed in the gas pipeline, wherein the fixed plate (1) is fixedly arranged on the inner wall of the gas pipeline, a plurality of through holes (2) are penetrated through the fixed plate (1), a plurality of sliding grooves (3) corresponding to the positions of the corresponding through holes (2) are opened on the left end surface of the fixed plate (1), and the sliding grooves (3) are connected to the through holes (2) at the corresponding positions, a partition (30) for blocking the through holes (2) is slidably arranged in the sliding grooves (3), a plurality of arc grooves corresponding to the positions of the sliding grooves (3) are opened on the fixed plate (1), the arc grooves are located on the left side of the sliding grooves (3) and are connected to the corresponding through holes (2), a flow limiting plate (31) for limiting the steam flow is slidably arranged in the arc grooves, a rotating rod (4) is rotatably penetrated through the fixed plate (1), and a rotating plate (40) is fixedly arranged on the left end surface of the rotating rod (4); The rotating plate (40) is provided with a primary adjustment mechanism (5), the primary adjustment mechanism (5) comprising a push column (50), the left end surface of each partition (30) is fixedly provided with a push column (50), the rotating plate (40) is provided with a push group (51) for driving the push column (50) to move, the outer wall of the gas pipeline is fixedly provided with a rectangular plate (52) located at the front side of the gas pipeline through a fixing bar, and the rectangular plate (52) is provided with a driving group (53) for driving the rotating rod (4) to rotate; The rotating rod (4) is provided with a secondary regulating mechanism (6), the secondary regulating mechanism (6) comprising a rotating cylinder (60), the rotating rod (4) is rotatably sleeved with the rotating cylinder (60), the rotating cylinder (60) is fixedly provided with a rotating ring (61) via a connecting strip, and the rotating ring (61) is provided with a second driving group (62) for driving the flow limiting plate (31) to move.

2. A steam turbine steam delivery device according to claim 1, characterized in that: The driving group (53) comprises a transmission rod (530), the transmission rod (530) having an axis extending from front to rear and rotatably passing through the rectangular plate (52), a rotating disk (531) being fixedly arranged on the front end surface of the transmission rod (530), a bevel gear 1 (532) being fixedly arranged on the rear end surface of the transmission rod (530), and a bevel gear 2 (533) meshing with the bevel gear 1 (532) being fixedly arranged on the right end surface of the rotating rod (4).

3. A steam turbine steam delivery device according to claim 2, characterized in that: A ratchet wheel (54) located at the rear side of the rectangular plate (52) is fixedly sleeved on the transmission rod (530); a ratchet pawl (541) cooperating with the ratchet wheel (54) is rotatably arranged on the rear end surface of the rectangular plate (52); a horizontal section is arranged on the right side of the ratchet pawl (541); and a spiral spring (543) is fixedly arranged between the ratchet pawl (541) and the rectangular plate (52).

4. A steam turbine steam delivery device according to claim 1, characterized in that: A horizontal plate is fixedly arranged on the front end surface of the rectangular plate (52), and a lower pressing strip (544) penetrating the rectangular plate (52) is slidably arranged on the horizontal plate. The lower pressing strip (544) is divided into a horizontal section, an inclined section and a horizontal section from front to back, and the inclined section of the lower pressing strip (544) is inclined upward from front to back. The lower pressing strip (544) cooperates with the horizontal section of the ratchet (541).

5. A steam turbine steam delivery device according to claim 1, characterized in that: The push group (51) comprises a slide groove (510), the rotating plate (40) is provided with a slide groove (510) through and through, a sliding block (511) is slidably arranged in the slide groove (510), a rectangular groove is provided on the right end surface of the sliding block (511), a push bar (512) is slidably arranged in the rectangular groove, a spring (513) is fixedly arranged between the push bar (512) and the rectangular groove, and a plurality of push blocks (511) distributed in the circumferential direction and corresponding to the positions of the slide grooves (3) are fixedly arranged on the right end surface of the fixed plate (1). 4), the push block 1 (514) is a right triangle, and the inclined surface of the push block 1 (514) faces the direction of the corresponding through hole (2), and the right end surface of the fixed plate (1) is fixedly provided with a plurality of push blocks 2 (515) distributed circumferentially and corresponding to the positions of the sliding grooves (3) one by one, the push block 2 (515) is a right triangle, and the inclined surface of the push block 2 (515) faces the opposite direction to the inclined surface of the corresponding push block 1 (514), and the push block 2 (515) is located closer to the rotating rod (4) relative to the push block 1 (514).

6. A steam turbine steam delivery device according to claim 4, characterized in that: A transmission column (55) is fixedly arranged on the left end surface of the sliding block (511), and a transmission bar (550) is fixedly arranged on the inner wall of the gas transmission pipeline via a vertical bar. The transmission bar (550) is divided into an inclined section, an arc section and an inclined section from front to back, and the two inclined sections of the transmission bar (550) are both inclined upward from front to back.

7. A steam turbine steam delivery device according to claim 5, characterized in that: The sliding block (511) is provided with a placement groove through which two positioning posts (551) are slidably arranged. A spring three (552) is fixedly arranged between the two positioning posts (551). Two positioning grooves (553) are provided on the inner walls on both sides of the sliding groove (510) corresponding to the two positioning posts (551).

8. A steam turbine steam delivery device according to claim 1, characterized in that: Two cylindrical grooves (56) are provided on the inner wall of the sliding groove (3) close to the rotating rod (4), and a limiting column (561) is slidably arranged in the cylindrical groove (56), and a second spring (562) is fixedly arranged between the limiting column (561) and the inner wall of the corresponding cylindrical groove (56).

9. A steam turbine steam delivery device according to claim 1, characterized in that: The second pushing group (62) comprises a connecting rod (620), a connecting rod (620) is fixedly arranged between the rotating ring (61) and each flow limiting plate (31), a pushing plate (621) located on the left side of the rotating ring (61) is fixedly sleeved on the rotating rod (4), and a fixing block (622) is fixedly arranged on the rotating ring (61).

10. A steam turbine steam delivery device according to claim 9, characterized in that: A plurality of fixing rods (610) corresponding to the positions of the through holes (2) are fixedly arranged on the fixing plate (1), and connecting plates (611) are rotatably sleeved on the fixing rods (610) and the connecting rods (620), and a spring four (612) is commonly fixedly arranged between two adjacent connecting plates (611).

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