CN214534549U

CN214534549U - Low-pressure pipeline valve device for thermal power plant

Info

Publication number: CN214534549U
Application number: CN202120737929.8U
Authority: CN
Inventors: 甄长红; 彭庆生; 王锡胜; 罗海
Original assignee: Huaneng Lanzhou Fanping Thermal Power Co ltd
Current assignee: Huaneng Lanzhou Fanping Thermal Power Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-10-29
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a low pressure pipeline valve device for thermal power plant, including connecting pipe, box and cutting ferrule, the top welding of connecting pipe has even the cover, the cutting ferrule passes through the bolt and installs at the top of even the cover, one side integrated into one piece of cutting ferrule has the side cover, the inboard card of connecting pipe has the valve plate, the center department card of valve plate has the case, the top cover of case is equipped with gear one, one side card of gear one has gear two, the center department welding of gear two has the pivot, this low pressure pipeline valve device for thermal power plant can reduce the dynamics when the valve is adjusted, need not with the help of other instruments, practices thrift personnel's physical power, can carry out spacing operation to the valve plate, prevents that the valve plate turned angle is offside, can carry out fixed work to the valve plate in real time, prevents to lead to the situation that the valve plate appears deflecting because of the circumstances such as fluid flowing pressure or equipment vibrations, the valve can ensure the accuracy of controlling the flow, and is suitable for the on-off regulation of low-pressure pipelines.

Description

Low-pressure pipeline valve device for thermal power plant

Technical Field

The utility model relates to a low pressure pipeline valve equipment technical field specifically is a thermal power plant uses low pressure pipeline valve gear.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, various pipelines are required to be used for conveying water, steam, flue gas and various fluids in a thermal power plant, and then the valve is required to adjust different fluids, the utility model with the patent application number of CN201822095738.7 discloses a shunting and pressure reducing type underground drainage pipeline valve, the existing low-pressure pipeline valve equipment basically has the advantages of high installation speed, convenient use, high adjustment speed, good sealing effect, long service life and the like, the use requirement of on-off adjustment of the low-pressure pipeline of the thermal power plant can be met, on one hand, when the valve is adjusted, on the one hand, the valve often needs larger strength, the physical consumption of personnel is increased, and the difficulty of valve adjustment is increased, on the other hand, the stop gear of current valve often carries on spacingly through the turned angle to the case, produces easily to stop gear after the pivoted dynamics increase and warp, is unfavorable for the guarantee to the valve and seals or the spacing operation under the full open mode, and on the other hand, the valve is after the adjustment, and the vibrations or personnel mistake that receive easily bump and take place to rotate, are unfavorable for guaranteeing the precision or the closed density of valve regulation.

Therefore, how to design a low-pressure pipeline valve device for a thermal power plant becomes a problem to be solved currently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a low pressure pipeline valve gear is used in thermal power plant to solve the problem that proposes in the above-mentioned background art, the utility model relates to a rationally, it is comparatively convenient during the use, the on-off regulation who is applicable to the low pressure pipeline uses.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a thermal power plant uses low pressure pipeline valving, includes the device body, the device body is including linking pipe, box and cutting ferrule, the box passes through the bearing and installs the one end at linking pipe, the top welding of linking pipe has even the cover, the cutting ferrule passes through the bolt and installs the top at linking the cover, one side integrated into one piece of cutting ferrule has the side cover, the inboard card of linking pipe has the valve plate, the center department card of valve plate has the case, the top cover of case is equipped with gear one, one side card of gear one has gear two, the center department welding of gear two has the pivot, the top card of pivot has the commentaries on classics board, the top welding of cutting ferrule has the shell fragment, the outside side of the bottom of commentaries on classics board is opened and is equipped with the card line, the inboard card of linking the cover has the sealing washer.

As an optimal implementation mode of the utility model, the outer warp of valve plate equals the internal diameter of connecting pipe, the bayonet socket has been seted up to the inboard of valve plate, the bottom card of case is in the inboard of bayonet socket, the inboard of cover is even passed through at the middle part of case sealing washer card.

As an optimized embodiment of the present invention, the first gear is clamped inside the cutting sleeve, the second gear is clamped inside the side sleeve, the cutting sleeve is communicated with the side sleeve, and the first gear is engaged with the second gear.

As a preferred embodiment of the utility model, the bottom setting of pivot is in the bottom of side cover, the top of pivot passes the bottom of side cover, gear two, side cover in proper order and extends to the inboard of changeing the board, change the outside side at the pivot by the board cover.

As a preferred embodiment of the present invention, the screw socket has been all seted up to the top and the bottom of side cover, the internal thread has been seted up on the inner wall of screw socket, the external screw thread has been seted up to the outside side of pivot, the internal thread cooperatees with the external screw thread.

As a preferred embodiment of the present invention, the one end of the elastic piece is clamped inside the clamping groove, and the rotating plate is mounted on the top of the side sleeve through the bearing.

Has the advantages that: 1. this thermal power plant uses low pressure pipeline valve device owing to be provided with connecting pipe, cutting ferrule, even cover, side cover, valve plate, case, gear one, gear two, pivot and commentaries on classics board, required dynamics when can reducing the valve effectively adjusts for the personnel can relax carry out rotatory adjustment, need not be with the help of other instruments, practice thrift personnel's physical power, the degree of difficulty when reducing the valve adjustment.

2. The low-pressure pipeline valve device for the thermal power plant is provided with the connecting pipe, the clamping sleeve, the connecting sleeve, the side sleeve, the valve plate, the valve core, the first gear, the second gear, the rotating shaft and the rotating plate, so that damage or deformation of a limiting mechanism of the valve core caused by excessive force applied by personnel can be effectively prevented, the limiting operation is effectively carried out when the valve plate is in a fully-opened or closed state, and the rotating angle of the valve plate is prevented from being offside.

3. This low pressure pipeline valve device for thermal power plant owing to be provided with the cutting ferrule, link cover, side cover, valve plate, case, gear one, gear two, pivot, commentaries on classics board, shell fragment and card line, after carrying out flow adjustment to the valve and accomplishing, can carry out spacing fixed work to the valve plate in real time, prevents to lead to the situation that the valve plate deflected to appear because of circumstances such as fluidic flowing pressure or equipment vibrations, and the angle of guarantee valve plate is fixed, and the guarantee valve is to the precision of flow size control.

4. This low pressure pipeline valve device for thermal power plant reasonable in design, it is comparatively high-efficient convenient during the use, the on-off adjustment who is applicable to the low pressure pipeline uses.

Drawings

Fig. 1 is a schematic structural view of a low-pressure pipeline valve device for a thermal power plant of the present invention;

fig. 2 is a sectional view of a low-pressure pipeline valve device for a thermal power plant according to the present invention;

fig. 3 is a top view of a rotating plate of a low-pressure pipeline valve device for a thermal power plant according to the present invention;

in the figure: 1. connecting pipes; 2. a female buckle; 3. a card sleeve; 4. connecting a sleeve; 5. side sleeves; 6. a valve plate; 7. a valve core; 8. a first gear; 9. a second gear; 10. a rotating shaft; 11. rotating the plate; 12. a spring plate; 13. blocking lines; 14. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a thermal power plant uses low pressure pipeline valve device, includes the device body, the device body is including even pipe 1, box 2 and cutting ferrule 3, box 2 passes through the bearing and installs the one end at even pipe 1, the top welding of even pipe 1 has even cover 4, cutting ferrule 3 passes through the bolt and installs the top at even cover 4, one side integrated into one piece of cutting ferrule 3 has side cover 5, the inboard card of even pipe 1 has valve plate 6, the center department card of valve plate 6 has case 7, the top cover of case 7 is equipped with gear 8, one side card of gear 8 has gear two 9, the center department welding of gear two 9 has pivot 10, the top card of pivot 10 has rotor plate 11, the top welding of cutting ferrule 3 has shell fragment 12, the outside side of the bottom of rotor plate 11 is opened and is equipped with card line 13, the inboard card of even cover 4 has sealing washer 14, can dig 2 through the box of even pipe 1 one end and the screw thread of the other end of even pipe 1 installs the valve at two pipes The joint of the passage is convenient for the installation and the use of the valve.

As an optimal implementation mode of the utility model, the outer warp of valve plate 6 equals the internal diameter of connecting pipe 1, the bayonet socket has been seted up to the inboard of valve plate 6, the bottom card of case 7 is in the inboard of bayonet socket, 14 cards of sealing washer are passed through at the inboard of even cover 4 in the middle part of case 7, can utilize 14 guarantees of sealing washer to the leakproofness of case 7, prevent that the fluid from flowing outward through even cover 4.

As an optimized implementation manner of the present invention, the first gear 8 is clamped inside the sleeve chuck 3, the second gear 9 is clamped inside the side sleeve 5, the sleeve chuck 3 is communicated with the side sleeve 5, and the first gear 8 is engaged with the second gear 9.

As an optimal implementation manner of the utility model, the bottom of pivot 10 sets up in the bottom of side cover 5, the top of pivot 10 passes bottom, two 9 gears, the top of side cover 5 in proper order and extends to the inboard of commentaries on classics board 11, commentaries on classics board 11 cover is established in the outside side of pivot 10, when rotating valve plate 6, can extrude shell fragment 12 downwards earlier, rotates commentaries on classics board 11 again for commentaries on classics board 11 drives two 9 gears through pivot 10, two 9 gears drive one 8 gears and rotate, and then make case 7 drive valve plate 6 and rotate, thereby the aperture of valve is controlled to the angle of adjustment valve plate 6, utilizes the diameter ratio of commentaries on classics board 11 and two 9 gears and the tooth ratio of one 8 gears, and the dynamics when reducing personnel rotated commentaries on classics board 11, personnel's physical power saving, the degree of difficulty when reducing the valve adjustment.

As an optimal implementation mode of the utility model, the screw socket has all been seted up to the top and the bottom of side cover 5, set up the internal thread on the inner wall of screw socket, the outside side of pivot 10 is opened and is equipped with the external screw thread, the internal thread cooperatees with the external screw thread, when rotating commentaries on classics board 11, pivot 10 passes through the cooperation of screw thread and side cover 5, and when two 9 of gears rotate the bottommost of side cover 5, valve plate 6 is opened completely, when two 9 of gears rotate the top of side cover 5, valve plate 6 is closed completely, utilizes side cover 5 to carry out spacingly to valve plate 6 effectively, prevents effectively that too big stop gear to case 7 produces destruction or deformation because of personnel's hard to carry out spacing operation when being in full open or closed state effectively to valve plate 6, prevent that 6 turned angle of valve plate offside.

As an optimal implementation mode, the one end card of shell fragment 12 is in the inboard of card line 13, change board 11 and pass through the bearing and install the top at side cover 5, after the aperture adjustment to the valve is accomplished, loosen shell fragment 12, make shell fragment 12 card go into in the card line 13 of changeing 11 bottoms of board, utilize shell fragment 12 to carry on spacingly to changeing board 11, and then carry on spacingly to valve plate 6, prevent to lead to the situation that the deflection appears in valve plate 6 because of circumstances such as fluidic flowing pressure or equipment vibrations, guarantee valve plate 6's angle is fixed, the guarantee valve is to the precision of flow size control.

When the low-pressure pipeline valve device for the thermal power plant is used, the switch 19 is opened, the valve is installed at the connector of two pipelines through the female key 2 at one end of the connecting pipe 1 and the thread at the other end of the connecting pipe 1, the valve is convenient to install and use, when the valve plate 6 is rotated, the elastic sheet 12 can be firstly extruded downwards, then the rotating plate 11 is rotated, the rotating plate 11 drives the gear II 9 through the rotating shaft 10, the gear II 9 drives the gear I8 to rotate, further the valve core 7 drives the valve plate 6 to rotate, so that the opening degree of the valve is controlled by adjusting the angle of the valve plate 6, the force when the rotating plate 11 is rotated by personnel is reduced by utilizing the diameter ratio of the rotating plate 11 and the gear II 9 and the gear ratio of the gear II 9 and the gear I8, the physical strength when the personnel rotate the rotating plate 11 is saved, the difficulty when the valve is adjusted is reduced, when the rotating plate 11 is rotated, the rotating shaft 10 is matched with the side sleeve 5 through the thread, when the second gear 9 rotates to the bottommost part of the side sleeve 5, the valve plate 6 is completely opened, and when the second gear 9 rotates to the topmost part of the side sleeve 5, the valve plate 6 is completely closed, the side sleeve 5 is effectively utilized to limit the valve plate 6, the limit mechanism of the valve core 7 is effectively prevented from being damaged or deformed due to excessive force applied by personnel, thereby effectively carrying out the limiting operation when the valve plate 6 is in the full open or close state, preventing the rotating angle of the valve plate 6 from offside, after the opening of the valve is adjusted, the elastic sheet 12 is loosened, so that the elastic sheet 12 is clamped in the clamping grains 13 at the bottom of the rotating plate 11, the rotating plate 11 is limited by the elastic sheet 12, and then carry on spacingly to valve plate 6, prevent to lead to the situation that the valve plate 6 deflected to appear because of the circumstances such as fluidic flowing pressure or equipment vibrations, guarantee the angle of valve plate 6 fixed, guarantee the precision of valve to flow size control.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a thermal power plant uses low pressure pipeline valving, includes the device body, its characterized in that: the device body comprises a connecting pipe (1), a female buckle (2) and a clamping sleeve (3), wherein the female buckle (2) is installed at one end of the connecting pipe (1) through a bearing, a connecting sleeve (4) is welded at the top of the connecting pipe (1), the clamping sleeve (3) is installed at the top of the connecting sleeve (4) through a bolt, a side sleeve (5) is integrally formed on one side of the clamping sleeve (3), a valve plate (6) is clamped on the inner side of the connecting pipe (1), a valve core (7) is clamped at the center of the valve plate (6), a first gear (8) is sleeved at the top of the valve core (7), a second gear (9) is clamped at one side of the first gear (8), a rotating shaft (10) is welded at the center of the second gear (9), a rotating plate (11) is clamped at the top end of the rotating shaft (10), an elastic sheet (12) is welded at the top of the clamping sleeve (3), clamping grains (13) are arranged on the outer side of the bottom of the rotating plate (11), the inner side of the connecting sleeve (4) is clamped with a sealing ring (14).

2. The low-pressure pipeline valve device for the thermal power plant according to claim 1, wherein: the outer diameter of the valve plate (6) is equal to the inner diameter of the connecting pipe (1), a bayonet is formed in the inner side of the valve plate (6), the bottom end of the valve core (7) is clamped in the inner side of the bayonet, and the middle of the valve core (7) is clamped in the inner side of the connecting sleeve (4) through a sealing ring (14).

3. The low-pressure pipeline valve device for the thermal power plant according to claim 1, wherein: the first gear (8) is clamped on the inner side of the clamping sleeve (3), the second gear (9) is clamped on the inner side of the side sleeve (5), the clamping sleeve (3) is communicated with the side sleeve (5), and the first gear (8) is meshed with the second gear (9).

4. The low-pressure pipeline valve device for the thermal power plant according to claim 1, wherein: the bottom setting of pivot (10) is in the bottom of side cover (5), the top of pivot (10) passes the bottom of side cover (5), the top of gear two (9), side cover (5) in proper order and extends to the inboard of changeing board (11), the outside side in pivot (10) is established in commentaries on classics board (11) cover.

5. The low-pressure pipeline valve device for the thermal power plant according to claim 1, wherein: the top and the bottom of the side sleeve (5) are both provided with screw sockets, the inner wall of each screw socket is provided with an internal thread, the outer side of the rotating shaft (10) is provided with an external thread, and the internal thread is matched with the external thread.

6. The low-pressure pipeline valve device for the thermal power plant according to claim 1, wherein: one end of the elastic sheet (12) is clamped on the inner side of the clamping grain (13), and the rotating plate (11) is installed on the top of the side sleeve (5) through a bearing.