CN216642219U

CN216642219U - High-precision control device for blade rotation of steam turbine

Info

Publication number: CN216642219U
Application number: CN202220194520.0U
Authority: CN
Inventors: 袁经文; 洪坤
Original assignee: Jiangsu Underwater Acoustic Technology Co ltd
Current assignee: Jiangsu Underwater Acoustic Technology Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-05-31
Anticipated expiration: 2032-01-19

Abstract

The utility model discloses a high-precision blade rotation control device for a steam turbine, which comprises an outer shell, wherein through grooves are formed in opposite side surfaces of the outer shell, a filter screen is embedded in the inner wall of each through groove, a heat-conducting plate is fixedly installed in the outer shell, a plurality of ventilation grooves which are distributed in a linear arrangement mode are formed in the heat-conducting plate, a control module is fixedly installed on the upper surface of the heat-conducting plate, and an infusion pump, a first liquid storage tank and a plurality of first radiating fins are fixedly installed on the lower surface of the heat-conducting plate. A plurality of first radiating fins that set up through heat-conducting plate and bottom are used for increasing the area of contact with the air when control module operates for the heat exchange efficiency of control module and air can promote, and the use of transfer pump makes the coolant liquid circulation in first liquid reserve tank, second liquid reserve tank and the back flow circulate, further accelerates with control module's heat exchange efficiency, makes the rate of control module cooling promote once more.

Description

High-precision control device for blade rotation of steam turbine

Technical Field

The utility model relates to the technical field of steam turbine production, in particular to a steam turbine control device.

Background

A steam turbine is an external combustion rotary machine that can convert steam heat energy into mechanical work. After steam from a boiler enters a steam turbine, the steam passes through a series of annularly arranged nozzles and movable blades in sequence, and heat energy of the steam is converted into mechanical energy for rotating a rotor of the steam turbine. The steam is converted in different ways in the steam turbine, thus forming the steam turbine with different working principles.

The blades are one of the important components inside the steam turbine, and the rotation of the blades realizes the operation of the steam turbine. When blades in the steam turbine rotate, corresponding control elements need to be used for high-precision control of the blades, the control elements are in a standby state constantly, power is large when the blades are used, internal heat generation amount is large, if the blades cannot be led out in time, operating power of the control elements can be influenced, high-precision control of the blades can be influenced, and therefore the use of the steam turbine is directly influenced.

In view of the above problems, the present invention provides a high-precision control device for blade rotation for a steam turbine.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The utility model aims to provide a high-precision control device for blade rotation of a steam turbine, so as to solve the problems in the background technology.

2. Technical scheme

The blade rotation high-precision control device for the steam turbine comprises an outer shell, wherein through grooves are formed in opposite side surfaces of the outer shell, a filter screen is embedded in the inner wall of each through groove, a heat conducting plate is fixedly mounted in the outer shell, a plurality of ventilation grooves which are distributed in a linear arrangement mode are formed in the heat conducting plate, a control module is fixedly mounted on the upper surface of the heat conducting plate, an infusion pump, a first liquid storage tank and a plurality of first radiating fins are fixedly mounted on the lower surface of the heat conducting plate, the first radiating fins are evenly and symmetrically arranged relative to the first liquid storage tank, a second liquid storage tank is fixedly mounted at the bottom of the first liquid storage tank, a liquid inlet end of the infusion pump is fixed and communicated with the second liquid storage tank, a liquid outlet end of the infusion pump is fixed and communicated with the first liquid storage tank, and a plurality of return pipes are fixedly communicated between the first liquid storage tank and the second liquid storage tank, the bottom fixed mounting of second liquid reserve tank has cooling module, and cooling module is used for cooling down the inside coolant liquid of control module and second liquid reserve tank.

Preferably, the plurality of return pipes are equally and symmetrically arranged relative to the first liquid storage tank, and the plurality of return pipes and the plurality of first radiating fins which are positioned on the same side of the first liquid storage tank are alternately distributed at intervals.

Preferably, a liquid injection pipe is fixedly penetrated through one side of the second liquid storage tank, a valve is arranged on the liquid injection pipe, and the return pipe is of a U-shaped pipe body structure.

Preferably, cooling unit includes air-blower and bellows, air-blower fixed mounting is on the heat-conducting plate, fixed cover has connect a plurality of second radiating fin that are the linear arrangement and distribute on the bellows, and is a plurality of the equal fixed mounting of second radiating fin is in the bottom of second liquid reserve tank.

Preferably, the upper surface of the air box is provided with a plurality of air outlet grooves which are linearly arranged and distributed, and the air outlet grooves and the second radiating fins are alternately distributed at intervals.

Preferably, an air delivery pipe is fixedly communicated with an air outlet end of the air blower, a filter cover is fixedly installed at an air inlet end of the air blower, and an end plate is fixedly installed at an open end of the air box.

Preferably, the other end of the air delivery pipe is fixedly communicated with a transit pipe, a plurality of connecting pipes which are linearly arranged and distributed penetrate through the transit pipe, and the other ends of the connecting pipes penetrate through the end plate and extend into the air box.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

1. a plurality of first radiating fins that set up through heat-conducting plate and bottom thereof are used for increasing the area of contact with the air when control module operates, make the heat exchange efficiency of control module and air promote, the use of transfer pump, make the coolant liquid circulation in first liquid reserve tank, second liquid reserve tank and the back flow, further accelerate with control module's heat exchange efficiency, make the rate of control module cooling promote once more, thereby the heat that produces when making control module operate can in time be derived, make control module more accurate to the control of steam turbine blade.

2. Air blower through among the cooling module is to the inside blast air of bellows for wind blows off along a plurality of air-out grooves, the ventilation groove of seting up on the heat-conducting plate acts on control module's surface, accelerate control module and air heat transfer's efficiency, and fixed mounting's a plurality of second radiating fin can accelerate the heat dissipation of second liquid reserve tank on the wind cooperation bellows that the air-out groove blew off, make the coolant liquid of circulation flow can last effectually to control module processing of cooling down, guarantee that control module can be long-time effectual operation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the heat-conducting plate and the cooling assembly of the present invention;

FIG. 3 is a schematic view of the structure of the heat-conducting plate, the ventilation slot and the infusion pump of the present invention;

FIG. 4 is a schematic view of the structure of the liquid delivery pump, the first liquid storage tank, the second liquid storage tank and the return pipe of the present invention;

FIG. 5 is a schematic view of the structure of the cooling module according to the present invention;

fig. 6 is a partial structural view of the cooling module of the present invention.

The reference numbers in the figures illustrate: 1. an outer housing; 2. a through groove; 3. a filter screen; 4. a heat conducting plate; 5. a control module; 6. a ventilation slot; 7. a first heat radiation fin; 8. an infusion pump; 9. a first liquid storage tank; 10. a second liquid storage tank; 11. a return pipe; 12. a blower; 13. an air box; 14. a second heat radiation fin; 15. an air outlet groove; 16. a wind delivery pipe; 17. a transit tube; 18. a connecting pipe; 19. and an end plate.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Referring to fig. 1-6, the present invention provides a technical solution:

blade rotation high accuracy control device for steam turbine, including shell body 1, the opposite flank of shell body 1 has all been seted up and has been run through groove 2, the inner wall that runs through groove 2 inlays and is equipped with filter screen 3, the inside fixed mounting of shell body 1 has heat-conducting plate 4, set up a plurality of ventilation slots 6 that are the linear arrangement and distribute on heat-conducting plate 4, the last fixed surface of heat-conducting plate 4 installs control module 5, the lower fixed surface of heat-conducting plate 4 installs transfer pump 8, first liquid reserve tank 9 and a plurality of first radiating fin 7, a plurality of first radiating fin 7 divide and the symmetry setting relatively first liquid reserve tank 9, a plurality of first radiating fin 7 that utilize heat-conducting plate 4 and bottom to set up are used for increasing control module 5 area of contact with the air when moving, make control module 5 can promote with the heat exchange efficiency of air.

Further, a second liquid storage tank 10 is fixedly installed at the bottom of the first liquid storage tank 9, a liquid injection pipe is fixedly penetrated through one side of the second liquid storage tank 10, a valve is arranged on the liquid injection pipe, a liquid inlet end of the liquid injection pump 8 is fixedly communicated with the second liquid storage tank 10, a liquid outlet end of the liquid injection pump 8 is fixedly communicated with the first liquid storage tank 9, a plurality of return pipes 11 of U-shaped pipe structures are fixedly communicated between the first liquid storage tank 9 and the second liquid storage tank 10, the plurality of return pipes 11 are symmetrically arranged relative to the first liquid storage tank 9, the plurality of return pipes 11 and the plurality of first radiating fins 7 which are positioned at the same side of the first liquid storage tank 9 are alternately distributed at intervals, the liquid injection pump 8 is controlled to operate, so that cooling liquid in the first liquid storage tank 9, the second liquid storage tank 10 and the return pipes 11 circulates, the heat exchange efficiency with the control module 5 is further accelerated, and the cooling rate of the control module 5 is increased again, thereby make the heat that control module 5 produced when moving in time derive, the bottom fixed mounting of second liquid reserve tank 10 has cooling module, and cooling module is used for cooling the inside coolant liquid of control module 5 and second liquid reserve tank 10.

Further, the cooling component comprises an air blower 12 and an air box 13, the air blower 12 is fixedly installed on the heat conducting plate 4, a plurality of second radiating fins 14 which are distributed in a linear arrangement manner are fixedly sleeved on the air box 13, the plurality of second radiating fins 14 are all fixedly installed at the bottom of the second liquid storage box 10, a plurality of air outlet grooves 15 which are distributed in a linear arrangement manner are formed in the upper surface of the air box 13, the plurality of air outlet grooves 15 and the plurality of second radiating fins 14 are alternately distributed at intervals, the heat dissipation of the second liquid storage box 10 can be accelerated by matching the air blown out from the air outlet grooves 15 with the plurality of second radiating fins 14 fixedly installed on the air box 13, so that the circulating cooling liquid can continuously and effectively carry out cooling treatment on the control module 5, an air conveying pipe 16 is fixedly communicated with an air outlet end of the air blower 12, a filter cover is fixedly installed at an air inlet of the air blower 12, and an end plate 19 is fixedly installed at an open end of the air box 13, the fixed intercommunication of the other end of defeated tuber pipe 16 has transit pipe 17, it is a plurality of connecting pipes 18 that the linear arrangement distributes to run through being fixed with on the transit pipe 17, the other end of a plurality of connecting pipes 18 all runs through end plate 19 and extends to bellows 13 inside, utilize air-blower 12 to the inside blast air of bellows 13 for wind blows off along a plurality of air-out grooves 15, the surface that acts on control module 5 along the ventilation groove 6 of seting up on heat-conducting plate 4, accelerate control module 5 and air heat transfer's efficiency.

The modules referred to in the present invention are prior art and can be fully implemented by those skilled in the art, without needless to say, the protection of the present invention nor the modifications to the internal structure and method.

The working principle is as follows: when the cooling device is used, the control module 5 is utilized to control the rotation of the blades of the steam turbine, a large amount of heat is generated when the control module 5 operates for a long time, the part of heat is conducted to the heat conducting plate 4 and is conducted to the first radiating fins 7 by the heat conducting plate 4, so that the contact area between the control module 5 and air is indirectly increased, the heat exchange efficiency of the control module 5 is improved, the infusion pump 8 operates, the cooling liquid in the second liquid storage tank 10 is continuously sent into the first liquid storage tank 9, the cooling liquid in the first liquid storage tank 9 is increased, the cooling liquid flows along the U-shaped return pipe 11 and flows back into the second liquid storage tank 10 again to form circulation, the flow of the cooling liquid can cool the control module 5, the heat dissipation of the control module blower 5 is further accelerated, the operation of the cooling component 12 sends air into the air box 13, and blows the air out along the air outlet groove 15, blow to control module 5 via the ventilation groove 6 of seting up on the heat-conducting plate 4 for the velocity of flow of control module 5 surface air, make control module 5 cooling rate further promote, and the second radiating fin 14 that fixedly cup joints on the wind cooperation bellows 13 that blows off along air-out groove 15 can cool down the processing to the inside coolant liquid of second liquid reserve tank 10, make thermal exchange efficiency promote in the coolant liquid, thereby make the coolant liquid of circulation flow can last effectual processing of cooling down to control module 5.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Blade rotation high accuracy controlling means for steam turbine, its characterized in that: comprises an outer shell (1), opposite side surfaces of the outer shell (1) are respectively provided with a through groove (2), the inner wall of the through groove (2) is embedded with a filter screen (3), a heat conducting plate (4) is fixedly arranged in the outer shell (1), the heat conducting plate (4) is provided with a plurality of ventilating grooves (6) which are distributed in a linear arrangement manner, the upper surface of the heat conducting plate (4) is fixedly provided with a control module (5), the lower surface of the heat conducting plate (4) is fixedly provided with an infusion pump (8), a first liquid storage tank (9) and a plurality of first radiating fins (7), the first radiating fins (7) are uniformly distributed and symmetrically arranged relative to the first liquid storage tank (9), the bottom of the first liquid storage tank (9) is fixedly provided with a second liquid storage tank (10), the liquid inlet end of the infusion pump (8) is fixed and communicated with the second liquid storage tank (10), the liquid outlet end of the infusion pump (8) is fixed and communicated with the first liquid storage tank (9), a plurality of return pipes (11) are fixedly communicated between the first liquid storage tank (9) and the second liquid storage tank (10), a cooling assembly is fixedly mounted at the bottom of the second liquid storage tank (10), and the cooling assembly is used for cooling the cooling liquid inside the control module (5) and the second liquid storage tank (10).

2. The high-precision blade rotation control device for a steam turbine according to claim 1, characterized in that: a plurality of back flow (11) are equallyd divide and the symmetry sets up relatively first liquid reserve tank (9), lie in first liquid reserve tank (9) with a plurality of back flow (11) and a plurality of radiating fin (7) interval distribution in turn of one side.

3. The high-precision blade rotation control device for a steam turbine according to claim 2, characterized in that: a liquid injection pipe is fixedly arranged on one side of the second liquid storage tank (10) in a penetrating mode, a valve is arranged on the liquid injection pipe, and the backflow pipe (11) is of a U-shaped pipe body structure.

4. The high-precision blade rotation control device for a steam turbine according to claim 1, characterized in that: the cooling assembly comprises an air blower (12) and an air box (13), wherein the air blower (12) is fixedly installed on the heat conducting plate (4), a plurality of second radiating fins (14) which are distributed in a linear arrangement mode are fixedly sleeved on the air box (13), and the second radiating fins (14) are fixedly installed at the bottom of the second liquid storage box (10).

5. The high-precision blade rotation control device for a steam turbine according to claim 4, wherein: a plurality of air outlet grooves (15) which are linearly arranged and distributed are formed in the upper surface of the air box (13), and the air outlet grooves (15) and a plurality of second radiating fins (14) are alternately distributed at intervals.

6. The high-precision blade rotation control device for a steam turbine according to claim 4, wherein: an air delivery pipe (16) is fixedly communicated with an air outlet end of the air blower (12), a filter cover is fixedly installed at an air inlet end of the air blower (12), and an end plate (19) is fixedly installed at an open end of the air box (13).

7. The high-precision blade rotation control device for a steam turbine according to claim 6, wherein: the other end of defeated tuber pipe (16) is fixed to be communicated with transfer pipe (17), run through on transfer pipe (17) and be fixed with a plurality of connecting pipes (18) that are the linear arrangement and distribute, a plurality of the other end of connecting pipe (18) all runs through end plate (19) and extends to inside bellows (13).