Valve device for thermal power generation steam turbine

Abstract

The invention discloses a valve device for a thermal power generation steam turbine, and relates to the field of valve devices, the valve device comprises a main water pipe and a valve, the valve is provided with an adapter pipe, the main water pipe is provided with an amplifying pipe, and the adapter pipe is arranged on the amplifying pipe. It needs to be explained that the flow of water is guaranteed through the amplifying pipe, and the filtering holes can be partially exposed through the arrangement of the partition baffles; when the filtering circular plate is blocked, the impact force borne by the impact sinking plate is reduced, and then the two partition baffles automatically rotate to be switched, so that continuous filtering of the amplifying pipe is guaranteed; when water enters the amplifying tube and falls on the impact sinking plate, air is blown through the air blowing pump, heat dissipation is conducted on the water falling on the impact sinking plate, the heat dissipation sleeve is made to blow air to the outer side of the amplifying tube through the multiple air blowing heads for heat dissipation, synchronous heat dissipation is conducted on the inner side and the outer side of the amplifying tube, the heat dissipation effect is guaranteed, and the service life of the amplifying tube is prolonged. And the safety of the valve is effectively protected.

Description

Technical Field

[0001] The present invention relates to the technical field of valve devices, and in particular to a valve device for a thermal power generation steam turbine. Background Art

[0002] A steam turbine, also known as a steam turbine engine, is a rotary steam-powered device that generates power by injecting high-temperature, high-pressure steam through a fixed nozzle into an accelerated stream, which is then ejected onto blades. This causes the bladed rotor to rotate, simultaneously generating work. Steam turbines are a staple of modern thermal power plants and are also used in the metallurgical and chemical industries, as well as in ship propulsion systems. During operation, steam turbines require water cooling to dissipate heat, which is then discharged by opening a valve.

[0003] However, during the flow of water, due to the water itself or the shedding of impurities inside the pipe, the water contains a large amount of impurities. These impurities not only affect the heat dissipation effect, but are also easily blocked by the valve, causing impurities to adhere to the valve, causing the valve to be rubbed by impurities during the opening and closing process, thereby causing valve damage or valve leakage. In addition, the temperature of the heat dissipation water is relatively high, and these high-temperature waters are likely to damage the valve when flowing through it. Summary of the Invention

[0004] The object of the present invention is to provide a valve device for a thermal power generation steam turbine to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A valve device for a thermal power generation steam turbine comprises a main water pipe and a valve, a transfer pipe is installed on the valve, an amplifying pipe is installed on the main water pipe, and the transfer pipe is installed on the amplifying pipe; The invention also includes a mechanical dynamic partition filter mechanism, which is installed in the amplifying tube and is used to filter the water entering the amplifying tube; the mechanical dynamic partition filter mechanism includes a filter disc, which is provided with a plurality of filter holes, and a rotating seat is rotatably installed on the filter disc, and two partition baffles are installed on the rotating seat, and the partition baffles are provided with a plurality of water outlet holes; The amplifying tube is provided with a linkage rotation switching mechanism, and the linkage rotation switching mechanism is used to drive the mechanical dynamic partition filtering mechanism to switch; the linkage rotation switching mechanism includes a plurality of switching toggle plates, and the plurality of switching toggle plates are equidistantly mounted on the rotating seat in a ring shape. A toggle pull frame is movably mounted on one side of the amplifying tube, and a toggle plate is rotatably mounted on the toggle pull frame. The toggle pull frame moves by driving the toggle plate to toggle the switching toggle plate to rotate. An impact sinking plate is movably mounted in the amplifying tube, and a sinking drive frame is movably mounted on the impact sinking plate, and the sinking drive frame is used to drive the toggle pull frame to move; It also includes a valve protection heat dissipation mechanism, which is installed on the amplifying tube and is used to dissipate heat for water entering the valve; the valve protection heat dissipation mechanism includes an air pump, an air pump bracket is installed on the amplifying tube, and the air pump is installed on the air pump bracket. The impact sinking plate is hollow, and an air pipe and an air outlet pipe are installed on the impact sinking plate, and the air pipe is installed on the air pump.

[0006] Furthermore, in a preferred embodiment of the present invention, the partition baffle is provided with a plurality of groups of rising grooves, and the plurality of groups of rising grooves are respectively located on one side of the plurality of water outlet holes; A cleaning bullet is movably installed in the rising groove, and the cleaning bullet is inserted into the filter hole. A cleaning spring is installed on the inner wall of the rising groove, and the other end of the cleaning spring is installed on the cleaning bullet.

[0007] Furthermore, in a preferred embodiment of the present invention, the linked rotation switching mechanism further includes a water outlet pipe, the water outlet pipe being installed at the center of the impact sinking plate, and the water outlet pipe being inserted into the transfer pipe; A support spring is installed on the water outlet pipe, and the other end of the support spring is installed on the transfer pipe.

[0008] Furthermore, in a preferred embodiment of the present invention, a wedge-shaped push block is installed on the toggle pull frame, and an extrusion wheel is rotatably installed on the sinking drive frame, and the sinking drive frame moves by squeezing the wedge-shaped push block through the extrusion wheel; A push-back spring is installed on one side of the wedge-shaped push block, and the other end of the push-back spring is installed on the amplifying tube.

[0009] Furthermore, in a preferred embodiment of the present invention, a mounting seat is installed on the toggle pull frame, and the toggle plate is rotatably mounted on the mounting seat; A reset groove is provided on the mounting seat, a reset shaft is rotatably mounted in the reset groove, and the toggle plate is mounted on the reset shaft.

[0010] Furthermore, in a preferred embodiment of the present invention, a reset torsion spring is installed on the inner wall of the reset groove, and the reset torsion spring is installed on the reset shaft, and the reset torsion spring is used to drive the toggle plate to reset; A return baffle is installed on the toggle pull frame, and the return baffle is used to limit the position of the toggle plate.

[0011] Furthermore, in a preferred embodiment of the present invention, the valve protection heat dissipation mechanism further comprises a heat dissipation sleeve, wherein a plurality of air blowing heads are installed in the heat dissipation sleeve, and the plurality of air blowing heads blow air toward the amplifying tube to dissipate heat; An air blowing branch pipe is installed on the air blowing pipe, and the air blowing branch pipe is connected to the heat dissipation sleeve.

[0012] Furthermore, in a preferred embodiment of the present invention, a lifting heat dissipation frame is installed on the heat dissipation sleeve, and a driving column is rotatably installed in the lifting heat dissipation frame, and the driving column rotates to drive the lifting heat dissipation frame to move up and down; A driving groove is provided on the driving column in an annular and inclined manner, and a driving arc block is installed on the inner wall of the lifting heat dissipation rack. The driving column rotates to squeeze the driving arc block through the driving groove to move, thereby driving the lifting heat dissipation rack to move.

[0013] Furthermore, in a preferred embodiment of the present invention, a transfer shaft is rotatably mounted on the air pump bracket, and the driving column is mounted on the transfer shaft; A driving shaft is installed on the motor shaft of the air pump, and bevel gears are installed on both the driving shaft and the adapter shaft, and the two bevel gears are meshed with each other.

[0014] Furthermore, in a preferred embodiment of the present invention, two lifting limit rods are installed on the air pump bracket, and the lifting heat dissipation frame is slidably installed on the two lifting limit rods.

[0015] The beneficial effects of the valve device for a thermal power generation steam turbine proposed by the present invention are: In the present invention, a mechanical dynamic partition filtering mechanism is provided and an amplifying tube is used to ensure the flow of water. The filter holes can be partially exposed by the provision of a partition baffle, and when some of the filter holes are blocked, the filter holes can be automatically rotated and switched, thereby ensuring continuous filtration of the amplifying tube. In addition, when the partition baffle rotates, a plurality of cleaning bullets are squeezed back into the rising groove, and the cleaning spring is squeezed, and when the partition baffle rotates to expose new filter holes, the cleaning bullets are inserted into the blocked filter holes under the rebound force of the cleaning spring, thereby realizing the function of active cleaning.

[0016] Furthermore, in the present invention, through the setting of the linked rotary switching mechanism, when the filter circular plate is blocked, the impact force on the impact sinking plate is reduced. At this time, under the rebound force of the support spring, the impact sinking plate is driven to move up, and then the sinking drive frame is driven to move, so that the toggle pull frame pulls a switching toggle plate through the toggle plate to rotate, and then the rotating seat drives the two partition baffles to rotate, thereby achieving the purpose of automatic switching of the two partition baffles.

[0017] Furthermore, in the present invention, the valve is used to protect the heat dissipation mechanism. When water enters the large amplifying tube and falls on the impact sinking plate, air is blown by the air pump, and the high-pressure air enters the impact sinking plate through the air blowing pipe, and at the same time enters the heat dissipation sleeve through the air blowing branch pipe, and dissipates the water falling on the impact sinking plate, and then is discharged through the air outlet pipe. The heat dissipation sleeve can move vertically, so that the heat dissipation sleeve can blow air to the outside of the amplifying tube through multiple air blowing heads to dissipate heat, thereby achieving synchronous heat dissipation of the inside and outside of the amplifying tube, ensuring the heat dissipation effect, and effectively protecting the safety of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention; Figure 2 A schematic diagram of the internal structure of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention, wherein a filter disc is connected to a blow pump bracket and other structures; Figure 4 A schematic diagram of the structure of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention, wherein a filter disc and a partition baffle are connected; Figure 5 A schematic diagram of a partial cross-section of the structure of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention, showing the connection between a filter disc and a partition baffle; Figure 6 A schematic partial cross-sectional view of the connection between an impact sinking plate and a water outlet pipe and other structures of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention; Figure 7 A schematic diagram of a partial structure of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention, wherein a switching toggle plate and a toggle pull frame and other structures are connected; Figure 8 A partial cross-sectional structural diagram of the connection between a toggle puller and a toggle plate and other structures of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention; Figure 9 A schematic diagram of a partial structure of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention, wherein a toggle pull frame and a wedge-shaped push block and other structures are connected; Figure 10 A schematic diagram of the structure of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention, wherein a blow pump bracket is connected to a blow pump and other structures; Figure 11 A schematic diagram of the fracture structure of a drive column of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention.

[0019] In the figure: 1-main water pipe; 2-valve; 3-transfer pipe; 4-amplifier pipe; 5-mechanical dynamic partition filter mechanism; 501-filter disc; 502-partition baffle; 503-filter hole; 504-water outlet; 505-rotating seat; 506-rising trough; 507-cleaning bullet; 508-cleaning spring; 6-linked rotary switching mechanism; 601-switching toggle plate; 602-water outlet pipe; 603-extrusion wheel; 604-sinking drive frame; 605-support spring; 606-impact sinking plate; 607-toggle pull frame; 608-toggle plate; 609-return Position baffle; 610-reset shaft; 611-mounting seat; 612-reset groove; 613-reset torsion spring; 614-wedge-shaped push block; 615-push back spring; 7-valve protection heat dissipation mechanism; 701-air pump bracket; 702-air pump; 703-air blowing pipe; 704-air outlet pipe; 705-drive shaft; 706-adapter shaft; 707-bevel gear; 708-lifting heat dissipation frame; 709-drive column; 710-drive groove; 711-drive arc block; 712-lifting limit rod; 713-heat dissipation sleeve; 714-air blowing head; 715-air blowing branch pipe. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0023] In addition, in the description of the present invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, the terms "horizontal," "vertical," and "perpendicular" do not necessarily imply that a component must be absolutely vertical, but rather that it can be slightly tilted. For example, "vertical" simply means that its direction is more vertical than "horizontal," and does not mean that the structure must be completely vertical, but rather that it can be slightly tilted.

[0025] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0026] Please refer to the attached manual Figures 1-11 An embodiment of the present invention provides a valve device for a thermal power generation steam turbine, which includes a main water pipe 1 and a valve 2, a transfer pipe 3 is installed on the valve 2, an amplifying pipe 4 is installed on the main water pipe 1, and the transfer pipe 3 is installed on the amplifying pipe 4.

[0027] For further information, please refer to the attached manual. Figure 3-Figure 5A valve device for a thermal power generation steam turbine provided by an embodiment of the present invention also includes a mechanical dynamic partition filter mechanism 5, which is installed in the amplifying pipe 4 and is used to filter the water entering the amplifying pipe 4; specifically, the mechanical dynamic partition filter mechanism 5 includes a filter circular plate 501, and a plurality of filter holes 503 are provided on the filter circular plate 501. A rotating seat 505 is rotatably installed on the filter circular plate 501, and two partition baffles 502 are installed on the rotating seat 505. The partition baffle 502 is provided with a plurality of water outlet holes 504. It should be noted that, in the embodiment of the present invention, after water enters the amplifying tube 4 through the main water pipe 1, it is filtered by some of the filter holes 503 on the filter disc 501, and the filtered water leaks out through the water outlet 504. Moreover, by the setting of the amplifying tube 4, the water flow rate can be guaranteed; in addition, when some of the exposed filter holes 503 are blocked, the partition baffle 502 automatically rotates and switches to expose new filter holes 503, thereby ensuring that the amplifying tube 4 can continue to filter.

[0028] To be more specific, in an embodiment of the present invention, a linkage rotation switching mechanism 6 is installed on the amplifying tube 4, and the linkage rotation switching mechanism 6 is used to drive the mechanical dynamic partition filtering mechanism 5 to switch; the linkage rotation switching mechanism 6 includes a plurality of switching toggle plates 601, and the plurality of switching toggle plates 601 are equidistantly installed in a ring on the rotating seat 505. A toggle pull rack 607 is movably installed on one side of the amplifying tube 4, and a toggle plate 608 is rotatably installed on the toggle pull rack 607. The toggle pull rack 607 moves by driving the toggle plate 608 to toggle the switching toggle plate 601 to rotate. An impact sinking plate 606 is movably installed in the amplifying tube 4, and a sinking drive rack 604 is movably installed on the impact sinking plate 606. The sinking drive rack 604 is used to drive the toggle pull rack 607 to move.

[0029] It should be noted that in the embodiment of the present invention, when the filter disc 501 is clogged, the impact force on the impact sinking plate 606 is reduced. At this time, under the rebound force of the support spring 605, the impact sinking plate 606 is driven to move upward, thereby driving the sinking drive frame 604 to move, and then the toggle pull frame 607 pulls a switching toggle piece 601 through the toggle plate 608 to rotate, so that the rotating seat 505 drives the two partition baffles 502 to rotate, realizing automatic rotation switching of the two partition baffles 502.

[0030] More specifically, in an embodiment of the present invention, a valve protection heat dissipation mechanism 7 is further included, which is installed on the amplifying tube 4. The valve protection heat dissipation mechanism 7 is used to dissipate heat for water entering the valve 2; the valve protection heat dissipation mechanism 7 includes an air pump 702, an air pump bracket 701 is installed on the amplifying tube 4, the air pump 702 is installed on the air pump bracket 701, the impact sinking plate 606 is hollow, and an air pipe 703 and an air outlet pipe 704 are installed on the impact sinking plate 606, and the air pipe 703 is installed on the air pump 702. It should be noted that, in the embodiment of the present invention, when water enters the amplifying tube 4 and falls on the impact sinking plate 606, air is blown by the air pump 702, so that the high-pressure air enters the impact sinking plate 606 through the air blowing tube 703, and at the same time enters the heat dissipation sleeve 713 through the air blowing branch pipe 715, so as to dissipate the heat of the water falling on the impact sinking plate 606, and then discharge it through the air outlet pipe 704, and the heat dissipation sleeve 713 can move vertically, so that the heat dissipation sleeve 713 can blow air to the outside of the amplifying tube 4 through multiple air blowing heads 714 to dissipate heat, thereby achieving synchronous heat dissipation of the inside and outside of the amplifying tube 4 and ensuring the heat dissipation effect.

[0031] Please continue to refer to the instructions attached Figure 3-Figure 5 Furthermore, an embodiment of the present invention provides a valve device for a thermal power generation steam turbine, wherein a partition baffle 502 is provided with multiple groups of rising grooves 506, and the multiple groups of rising grooves 506 are respectively located on one side of the multiple water outlet holes 504; In addition, a cleaning block 507 is movably installed in the rising groove 506, and the cleaning block 507 is inserted into the filter hole 503. A cleaning spring 508 is installed on the inner wall of the rising groove 506, and the other end of the cleaning spring 508 is installed on the cleaning block 507. It should be noted that in the embodiment of the present invention, when the partition baffle 502 rotates, the multiple cleaning blocks 507 are squeezed and retracted into the rising groove 506, and the cleaning spring 508 is squeezed. When the partition baffle 502 rotates to expose a new filter hole 503, the rebound force of the cleaning spring 508 causes the cleaning block 507 to be inserted into the clogged filter hole 503, thereby realizing the active cleaning function.

[0032] For further information, please refer to the attached manual. Figure 6-Figure 9In an embodiment of the present invention, a valve device for a thermal power generation steam turbine is provided. The linked rotation switching mechanism 6 further includes a water outlet pipe 602, which is mounted at the center of an impact sinking plate 606 and inserted into a transfer tube 3. Furthermore, a support spring 605 is mounted on the water outlet pipe 602, the other end of which is mounted on the transfer tube 3. It should be noted that in this embodiment of the present invention, when some of the filter holes 503 on the filter disc 501 become clogged, causing a reduction in water flow, the impact sinking plate 606 automatically moves upward due to the rebound force of the support spring 605.

[0033] More specifically, in the embodiment of the present invention, a wedge-shaped push block 614 is mounted on the toggle pull frame 607, and a squeezing wheel 603 is rotatably mounted on the sinking drive frame 604. The squeezing wheel 603 squeezes the wedge-shaped push block 614 to move the sinking drive frame 604. A return spring 615 is mounted on one side of the wedge-shaped push block 614, and the other end of the return spring 615 is mounted on the amplifying tube 4. It should be noted that in the embodiment of the present invention, when some of the filter holes 503 on the filter disc 501 become clogged, the squeezing wheel 603 squeezes the wedge-shaped push block 614 to move the sinking drive frame 604, and the return spring 615 is subjected to force, thereby achieving the purpose of automatically rotating and switching the partition baffle 502.

[0034] Please continue to refer to the instructions attached Figure 6-Figure 9 More specifically, in the embodiment of the present invention, a mounting seat 611 is mounted on the toggle bracket 607, and the toggle plate 608 is rotatably mounted on the mounting seat 611. The mounting seat 611 defines a reset groove 612, and a reset shaft 610 is rotatably mounted within the reset groove 612. The toggle plate 608 is mounted on the reset shaft 610. It should be noted that in the embodiment of the present invention, when the toggle plate 608 rotates, the reset shaft 610 rotates within the reset groove 612, applying force to the reset torsion spring 613. Therefore, the rebound force of the reset torsion spring 613 can help the toggle plate 608 to reset.

[0035] To be more specific, in an embodiment of the present invention, a reset torsion spring 613 is installed on the inner wall of the reset groove 612, and the reset torsion spring 613 is installed on the reset shaft 610. The reset torsion spring 613 is used to drive the toggle plate 608 to reset; in addition, a return baffle 609 is installed on the toggle pull frame 607, and the return baffle 609 is used to limit the position of the toggle plate 608. It should be noted that in the embodiment of the present invention, after the toggle pull rack 607 toggles the switch toggle plate 601 through the toggle plate 608, the water can be filtered normally. At this time, the toggle pull rack 607 drives the toggle plate 608 to reset, and the toggle plate 608 is blocked and retracted. The toggle plate 608 rotates in the reset groove 612 through the reset shaft 610, and the reset torsion spring 613 is subjected to force. Therefore, after the toggle plate 608 is reset, under the rebound force of the reset torsion spring 613, the reset shaft 610 drives the toggle plate 608 to rotate and reset, and is blocked by the return baffle 609.

[0036] Further, please refer to the attached manual. Figure 3 and Figure 10-11 In an embodiment of the present invention, a valve device for a thermal power generation steam turbine is provided. The valve protection and heat dissipation mechanism 7 further includes a heat dissipation sleeve 713. A plurality of air blowing heads 714 are installed in the heat dissipation sleeve 713. The plurality of air blowing heads 714 blow air toward the amplifying tube 4 to dissipate heat. In addition, an air branch pipe 715 is installed on the air pipe 703, and the air branch pipe 715 is connected to the heat dissipation sleeve 713. It should be noted that in the embodiment of the present invention, when the valve is in use, air is blown by the air pump 702, so that high-pressure gas enters the impact sinking plate 606 and the heat dissipation sleeve 713 through the air pipe 703 and the air branch pipe 715, thereby achieving simultaneous heat dissipation of the inside and outside of the amplifying tube 4, thereby ensuring a heat dissipation effect.

[0037] More specifically, in the embodiment of the present invention, a lifting heat dissipation frame 708 is mounted on the heat dissipation sleeve 713, and a driving column 709 is rotatably mounted in the lifting heat dissipation frame 708. The driving column 709 rotates to drive the lifting heat dissipation frame 708 to move. In addition, a driving groove 710 is annularly and obliquely formed on the driving column 709. A driving arc block 711 is mounted on the inner wall of the lifting heat dissipation frame 708. The driving column 709 rotates to squeeze the driving arc block 711 through the driving groove 710 to move, thereby driving the lifting heat dissipation frame 708 to move. It should be noted that in the embodiment of the present invention, when the driving column 709 rotates, the driving arc block 711 is squeezed and moved through the driving groove 710, thereby driving the lifting heat dissipation frame 708 to move. When the driving column 709 rotates one circle, the lifting heat dissipation frame 708 moves up and down once. The movement of the lifting heat dissipation frame 708 drives the heat dissipation sleeve 713 to move up and down, thereby achieving heat dissipation on the outside of the amplifier tube 4.

[0038] Please continue to refer to the instructions attached Figure 3 and Figure 10-11 More specifically, in the embodiment of the present invention, a transfer shaft 706 is rotatably mounted on the air pump bracket 701, and a drive column 709 is mounted on the transfer shaft 706. Furthermore, a drive shaft 705 is mounted on the motor shaft of the air pump 702, and bevel gears 707 are both mounted on the drive shaft 705 and the transfer shaft 706, with the two bevel gears 707 meshing with each other. It should be noted that in the embodiment of the present invention, when the air pump 702 is started, the drive shaft 705 drives one bevel gear 707 to rotate, and the rotation of one bevel gear 707 drives the other bevel gear 707 to rotate, thereby driving the transfer shaft 706 to rotate. The rotation of the transfer shaft 706 drives the drive column 709 to rotate, thereby achieving vertical movement of the heat dissipation sleeve 713.

[0039] More specifically, in the embodiment of the present invention, two lifting limit rods 712 are mounted on the air pump bracket 701, and the lifting heat dissipation frame 708 is slidably mounted on the two lifting limit rods 712. It should be noted that in the embodiment of the present invention, when the lifting heat dissipation frame 708 moves, it moves vertically on the two lifting limit rods 712, thereby achieving vertical movement of the heat dissipation sleeve 713.

[0040] In summary, the working principle of a valve device for a thermal power generation steam turbine provided by an embodiment of the present invention is: After the water enters the amplifying pipe 4 through the main water pipe 1, it is filtered by some of the filter holes 503 on the filter disc 501, and the filtered water leaks out through the water outlet holes 504. The setting of the amplifying pipe 4 can ensure the flow of water. However, when some of the filter holes 503 are blocked, the water flow passing through the filter disc 501 is greatly reduced. At this time, under the rebound force of the support spring 605, the impact sinking plate 606 is driven to move upward, thereby driving the sinking driving frame 604 to move. The sinking driving frame 604 squeezes the wedge-shaped push block 614 to move through the squeezing wheel 603, and squeezes the push-back spring 615 to be stressed. At the same time, the wedge-shaped push block 614 moves and drives the toggle pull frame 607 to move. The toggle pull frame 607 pulls a switching toggle piece 601 to rotate through the toggle plate 608, thereby causing the multiple water outlet holes 504 on the two partition baffles 502 to rotate to the other multiple filter holes 503, realizing dynamic switching of the filter holes 503, and ensuring continuous filtering of the water. Furthermore, when the partition baffle 502 rotates, the plurality of cleaning springs 507 are squeezed and retracted into the rising groove 506, and the cleaning spring 508 is squeezed. Moreover, when the partition baffle 502 rotates to expose new filter holes 503, the rebound force of the cleaning spring 508 causes the cleaning spring 507 to be inserted into the blocked filter hole 503, thereby achieving the active cleaning function. Furthermore, when water enters the amplifying tube 4 and falls on the impact sinking plate 606, air is blown by the air pump 702, and the high-pressure air enters the impact sinking plate 606 through the air blowing pipe 703, and at the same time enters the heat dissipation sleeve 713 through the air blowing branch pipe 715, dissipating the heat of the water falling on the impact sinking plate 606, and then discharged through the air outlet pipe 704; in addition, when the air pump 702 is started, the driving shaft 705 drives one bevel gear 707 to rotate, and the rotation of one bevel gear 707 drives the other bevel gear 707 to rotate. The adapter shaft 706 rotates, and the adapter shaft 706 rotates, which drives the driving column 709 to rotate, so that the driving column 709 squeezes the driving arc block 711 through the driving groove 710 to move, and then drives the lifting heat dissipation frame 708 to move, and when the driving column 709 rotates one circle, the lifting heat dissipation frame 708 moves up and down once, and the movement of the lifting heat dissipation frame 708 drives the heat dissipation sleeve 713 to move, so that the heat dissipation sleeve 713 blows air to the outside of the amplifying tube 4 through multiple blowing heads 714 to dissipate heat, thereby further ensuring the heat dissipation effect.

[0041] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A valve device for a thermal power generation steam turbine, characterized in that: It includes a main water pipe and a valve, a transfer pipe is installed on the valve, an amplifying pipe is installed on the main water pipe, and the transfer pipe is installed on the amplifying pipe; The invention also includes a mechanical dynamic partition filter mechanism, which is installed in the amplifying tube and is used to filter the water entering the amplifying tube; the mechanical dynamic partition filter mechanism includes a filter disc, which is provided with a plurality of filter holes, and a rotating seat is rotatably installed on the filter disc, and two partition baffles are installed on the rotating seat, and the partition baffles are provided with a plurality of water outlet holes; The amplifying tube is provided with a linkage rotation switching mechanism, and the linkage rotation switching mechanism is used to drive the mechanical dynamic partition filtering mechanism to switch; the linkage rotation switching mechanism includes a plurality of switching toggle plates, and the plurality of switching toggle plates are equidistantly mounted on the rotating seat in a ring shape. A toggle pull frame is movably mounted on one side of the amplifying tube, and a toggle plate is rotatably mounted on the toggle pull frame. The toggle pull frame moves by driving the toggle plate to toggle the switching toggle plate to rotate. An impact sinking plate is movably mounted in the amplifying tube, and a sinking drive frame is movably mounted on the impact sinking plate, and the sinking drive frame is used to drive the toggle pull frame to move; It also includes a valve protection heat dissipation mechanism, which is installed on the amplifying tube and is used to dissipate heat for water entering the valve; the valve protection heat dissipation mechanism includes an air pump, an air pump bracket is installed on the amplifying tube, and the air pump is installed on the air pump bracket. The impact sinking plate is hollow, and an air pipe and an air outlet pipe are installed on the impact sinking plate, and the air pipe is installed on the air pump.

2. A valve device for a thermal power generation steam turbine according to claim 1, characterized in that: The partition baffle is provided with a plurality of groups of rising grooves, and the plurality of groups of rising grooves are respectively located on one side of the plurality of water outlet holes; A cleaning bullet is movably installed in the rising groove, and the cleaning bullet is inserted into the filter hole. A cleaning spring is installed on the inner wall of the rising groove, and the other end of the cleaning spring is installed on the cleaning bullet.

3. The valve device for a thermal power generation steam turbine according to claim 1, characterized in that: The linkage rotation switching mechanism further includes a water outlet pipe, which is installed at the center of the impact sinking plate and is inserted into the transfer pipe; A support spring is installed on the water outlet pipe, and the other end of the support spring is installed on the transfer pipe.

4. The valve device for a thermal power generation steam turbine according to claim 3, characterized in that: A wedge-shaped push block is installed on the toggle pull frame, and an extrusion wheel is rotatably installed on the sinking drive frame, and the sinking drive frame moves by squeezing the wedge-shaped push block through the extrusion wheel; A push-back spring is installed on one side of the wedge-shaped push block, and the other end of the push-back spring is installed on the amplifying tube.

5. The valve device for a thermal power generation steam turbine according to claim 4, characterized in that: The toggle pull frame is provided with a mounting seat, and the toggle plate is rotatably mounted on the mounting seat; A reset groove is provided on the mounting seat, a reset shaft is rotatably mounted in the reset groove, and the toggle plate is mounted on the reset shaft.

6. The valve device for a thermal power generation steam turbine according to claim 5, characterized in that: A reset torsion spring is installed on the inner wall of the reset groove, and the reset torsion spring is installed on the reset shaft. The reset torsion spring is used to drive the toggle plate to reset; A return baffle is installed on the toggle pull frame, and the return baffle is used to limit the position of the toggle plate.

7. The valve device for a thermal power generation steam turbine according to claim 1, characterized in that: The valve protection heat dissipation mechanism further comprises a heat dissipation sleeve, wherein a plurality of air blowing heads are installed in the heat dissipation sleeve, and the plurality of air blowing heads blow air toward the amplifying tube for heat dissipation; An air blowing branch pipe is installed on the air blowing pipe, and the air blowing branch pipe is connected to the heat dissipation sleeve.

8. The valve device for a thermal power generation steam turbine according to claim 7, characterized in that: A lifting heat dissipation frame is installed on the heat dissipation sleeve, and a driving column is rotatably installed in the lifting heat dissipation frame, and the driving column rotates to drive the lifting heat dissipation frame to move up and down; A driving groove is provided on the driving column in an annular and inclined manner, and a driving arc block is installed on the inner wall of the lifting heat dissipation rack. The driving column rotates to squeeze the driving arc block through the driving groove to move, thereby driving the lifting heat dissipation rack to move.

9. The valve device for a thermal power generation steam turbine according to claim 8, characterized in that: A transfer shaft is rotatably mounted on the air pump bracket, and the driving column is mounted on the transfer shaft; A driving shaft is installed on the motor shaft of the air pump, and bevel gears are installed on both the driving shaft and the adapter shaft, and the two bevel gears are meshed with each other.

10. The valve device for a thermal power generation steam turbine according to claim 9, characterized in that: Two lifting limit rods are installed on the air pump bracket, and the lifting heat dissipation frame is slidably installed on the two lifting limit rods.

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