CN215568049U

CN215568049U - Low-torque operation high-pressure block valve

Info

Publication number: CN215568049U
Application number: CN202122120373.0U
Authority: CN
Inventors: 胡博武; 林飞; 吴晓丰; 郭玲玲; 夏建英; 潘梅
Original assignee: Zhongtai Valve Co ltd
Current assignee: Zhongtai Valve Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-01-18
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses a low-torque operation high-pressure block valve, and particularly relates to the technical field of block valves. According to the low-torque operation high-pressure block valve, when a medium enters the valve body from the first open slot, the medium is firstly divided by the first through slots in the dividing cavity, then enters the flow slot along the flow collecting slot and is finally discharged, and the medium is dispersed and collected, so that the medium flow is not reduced, the medium pressure is reduced, the damage probability of the valve is reduced, and the working cost is reduced.

Description

Low-torque operation high-pressure block valve

Technical Field

The utility model relates to the technical field of block valves, in particular to a low-torque operation high-pressure block valve.

Background

The cut-off valve is also called a closed-circuit valve, has the function of connecting or cutting off media in a pipeline, and comprises a gate valve, a stop valve, a plug valve, a ball valve, a butterfly valve, a diaphragm and the like, and is widely applied to the fields of petrochemical industry, ships, power stations, metallurgy, ocean engineering and the like due to the advantages of small friction force between sealing surfaces, long service life, small opening height, low manufacturing cost, convenience in maintenance and the like in the opening and closing process, and is one of essential parts in pipeline transportation.

The conventional shut-off valve has the disadvantages that: in the medium transportation process of the traditional stop valve, the torque operation difficulty of the valve is high, and the torque operation difficulty is aggravated along with the rising of the medium pressure of the valve and the increasing of the drift diameter, so that the application of the stop valve on a high-pressure pipeline with a large drift diameter is seriously restricted, the damage probability is improved, and the working cost is improved.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a low torque operating high pressure shut off valve which effectively solves the problems of the background art.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a low moment of torsion operation high pressure truncation valve, includes the valve body, the upper end of valve body and lower extreme difference fixed mounting have last valve gap and lower valve gap, first open slot and second open slot have been seted up respectively to the one end that goes up valve gap and lower valve gap and keep away from each other, the arc wall has been seted up in the upper end outside of valve body, the inside sliding connection of arc wall has the slide bar, the reposition of redundant personnel chamber has been seted up to the inside of valve body, the rotation groove, separates disconnected groove and flow groove, the surface lower part threaded connection of valve body has control mechanism, control mechanism includes disc, threaded rod, second valve and stopper.

Preferably, the shunting cavity is located the upper portion of valve body and communicates with each other with first open slot, the first logical groove of a plurality of has been seted up to the diapire of shunting cavity, the shunting cavity communicates with each other through first logical groove and rotation groove.

Preferably, the size of the rotating groove is larger than that of the shunting cavity, and the arc-shaped groove and the rotating groove are communicated with each other.

Preferably, the inner surface of the rotating groove is rotatably connected with a first sealing ring, the upper end and the lower end of the first sealing ring are respectively and fixedly provided with a first valve and a second sealing ring, and the lower end of the sliding rod penetrates through the first valve and is fixedly connected to the upper end of the first sealing ring.

Preferably, the first valve, the first sealing ring and the second sealing ring are internally and jointly provided with a plurality of second through grooves penetrating through the upper end and the lower end of the first valve, the first sealing ring and the second sealing ring, the bottom wall of the rotating groove is provided with a plurality of flow collecting grooves, and each first through groove and each second through groove are located right above one of the flow collecting grooves.

Preferably, a plurality of first through grooves are provided with a spherical groove on one side away from the rotating groove, and the spherical groove, the partition groove, the flowing groove and the second open groove are communicated with each other from top to bottom in sequence.

Preferably, the right part of the top wall of the partition groove is provided with a moving groove, the moving groove is not connected with the ball groove, the lower part of the outer surface of the valve body is provided with a thread groove, and the thread groove, the partition groove and the moving groove are communicated with each other.

Preferably, threaded rod threaded connection is in the same place control mechanism and valve body threaded connection in the thread groove, stopper fixed connection is in the upper end right part of second valve, the upper end fixed mounting of second valve has sealed the pad, stopper and second valve are located the shifting chute respectively with sealed the pad and cut off the inslot portion, the threaded rod passes the one end rotation of thread groove and connects the surface of second valve and stopper and the one side that the threaded rod is close to each other, the one end of second valve is kept away from to disc fixed connection at the threaded rod.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model discloses a low-torque operation high-pressure block valve, wherein when a medium enters a valve body from a first open slot, a slide rod is controlled to move in an arc-shaped slot at first, so that a second slot on a first valve is communicated with a first through slot and a flow collecting slot, the medium is divided by a plurality of first through slots in a flow dividing cavity, then is gathered in the flow collecting slot and enters a flow slot for final discharge, and the medium is gathered together after being dispersed, so that the medium flow is not reduced, the medium pressure is reduced, the damage probability of the valve is reduced, and meanwhile, when the medium flow is blocked by the first valve and the second valve, the first valve and the second valve are directly connected with the valve body into a whole through a rotating slot and a blocking slot in the valve body, so that the medium pressure is reduced, the service life of the valve body is prolonged, and the working cost is reduced.

Drawings

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

FIG. 2 is a cut-away schematic view of the valve body, upper bonnet and lower bonnet of the present invention;

FIG. 3 is a schematic view of the internal structure of the valve body of the present invention;

FIG. 4 is a schematic view of the connection of the first valve, the first seal ring and the second seal ring of the present invention;

fig. 5 is a schematic structural diagram of the control mechanism of the present invention.

In the figure: 1. a valve body; 11. a shunting cavity; 12. a collecting groove; 13. a spherical groove; 14. a first through groove; 15. a blocking groove; 16. a moving groove; 17. a flow channel; 18. a thread groove; 19. a rotating groove; 2. an upper valve cover; 21. a first open slot; 3. a lower valve cover; 31. a second open slot; 4. a slide bar; 5. a control mechanism; 51. a disc; 52. a threaded rod; 53. a second valve; 54. a gasket; 55. a limiting block; 6. an arc-shaped slot; 7. a first seal ring; 71. a second through groove; 8. a first valve; 9. and a second seal ring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "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 specific cases to those skilled in the art.

As shown in fig. 1-5, a low-torque operation high-pressure block valve, including valve body 1, the upper end and the lower extreme of valve body 1 are fixed mounting respectively has upper valve cover 2 and lower valve cover 3, first open slot 21 and second open slot 31 have been seted up respectively to the one end that upper valve cover 2 and lower valve cover 3 kept away from each other, arc 6 has been seted up in the upper end outside of valve body 1, the inside sliding connection of arc 6 has slide bar 4, the reposition of redundant personnel chamber 11 has been seted up to the inside of valve body 1, rotation groove 19, cut off groove 15 and flow groove 17, the surface lower part threaded connection of valve body 1 has control mechanism 5, control mechanism 5 includes disc 51, threaded rod 52, second valve 53 and stopper 55.

The distributing cavity 11 is positioned at the upper part of the valve body 1 and is communicated with the first open slot 21, the bottom wall of the distributing cavity 11 is provided with a plurality of first through slots 14, and the distributing cavity 11 is communicated with the rotating slot 19 through the first through slots 14; the size of the rotating groove 19 is larger than that of the shunting cavity 11, and the arc-shaped groove 6 is communicated with the rotating groove 19; the inner surface of the rotating groove 19 is rotatably connected with a first sealing ring 7, the upper end and the lower end of the first sealing ring 7 are respectively and fixedly provided with a first valve 8 and a second sealing ring 9, and the lower end of the sliding rod 4 penetrates through the first valve 8 and is fixedly connected with the upper end of the first sealing ring 7; the first valve 8, the first sealing ring 7 and the second sealing ring 9 are internally provided with a plurality of second through grooves 71 which penetrate through the upper end and the lower end of the first valve, the bottom wall of the rotating groove 19 is provided with a plurality of collecting grooves 12, and each first through groove 14 and each second through groove 71 are positioned right above one of the collecting grooves 12; firstly, the sliding rod 4 is controlled to slide in an arc track in the arc-shaped groove 6, so that the first valve 8 is operated to rotate, the second through groove 71 is communicated with the first through groove 14 and the collecting groove 12, when a medium enters the valve body 1 from the first open groove 21, the medium is divided by the first through groove 14 in the dividing cavity 11, then the medium enters the collecting groove 12 along the second through groove 71, the pressure of the medium is relieved through dividing, and the damage probability of the valve is reduced.

One side of each of the first through grooves 14, which is far away from the rotating groove 19, is provided with a spherical groove 13, and the spherical grooves 13, the partition grooves 15, the flowing grooves 17 and the second open grooves 31 are communicated with each other from top to bottom in sequence; a moving groove 16 is formed in the right part of the top wall of the partition groove 15, the moving groove 16 is not connected with the round ball groove 13, a threaded groove 18 is formed in the lower part of the outer surface of the valve body 1, and the threaded groove 18, the partition groove 15 and the moving groove 16 are communicated with each other; the threaded rod 52 is in threaded connection with the threaded groove 18 to connect the control mechanism 5 and the valve body 1 together in a threaded manner, the limiting block 55 is fixedly connected to the right part of the upper end of the second valve 53, the sealing gasket 54 is fixedly mounted at the upper end of the second valve 53, the limiting block 55, the second valve 53 and the sealing gasket 54 are respectively positioned in the moving groove 16 and the partition groove 15, one end of the threaded rod 52 penetrating through the threaded groove 18 is rotatably connected to one side, close to the threaded rod 52, of the outer surfaces of the second valve 53 and the limiting block 55, and the disc 51 is fixedly connected to one end, far away from the second valve 53, of the threaded rod 52; the disc 51 is rotated to control the threaded rod 52, the second valve 53 and the limiting block 55 to move rightwards, so that the second valve 53 is forced to move out of the separation groove 15, the medium is divided by the first through groove 14 and then enters the collecting groove 12, then is collected through the spherical groove 13, finally enters the flow groove 17 through the separation groove 15 uniformly and then is discharged from the second open groove 31, the medium is dispersed and then collected, the pressure brought by the medium is reduced, meanwhile, the circulation of the medium is not reduced, and the probability of valve damage is reduced.

It should be noted that, the present invention is a low torque operation high pressure block valve, firstly, the sliding rod 4 is controlled to slide in the arc groove 6 in an arc track, so as to operate the first valve 8 to rotate, so that the second through groove 71 communicates with the first through groove 14 and the collecting groove 12, then the disc 51 is rotated, the control threaded rod 52, the second valve 53 and the limiting block 55 move rightwards, so as to force the second valve 53 to open the blocking groove 15, when the medium enters the interior of the valve body 1 from the first open groove 21, the medium is shunted by the first through groove 14 in the shunting cavity 11, then enters the collecting groove 12 along the second through groove 71, and finally the medium is collected in the spherical groove 13, enters the flow groove 17 through the blocking groove 15 and then is uniformly discharged from the second open groove 31.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A low torque operation high pressure shut-off valve comprising a valve body (1), characterized in that: the upper end of valve body (1) and lower extreme fixed mounting have last valve gap (2) and lower valve gap (3) respectively, first open slot (21) and second open slot (31) have been seted up respectively to the one end of going up valve gap (2) and keeping away from each other with lower valve gap (3), arc wall (6) have been seted up in the upper end outside of valve body (1), the inside sliding connection of arc wall (6) has slide bar (4), reposition of redundant personnel chamber (11), rotation groove (19), wall groove (15) and flow groove (17) have been seted up to the inside of valve body (1), the surface lower part threaded connection of valve body (1) has control mechanism (5), control mechanism (5) include disc (51), threaded rod (52), second valve (53) and stopper (55).

2. A low torque operating high pressure shut off valve according to claim 1 wherein: the flow dividing cavity (11) is located on the upper portion of the valve body (1) and communicated with the first open groove (21), the bottom wall of the flow dividing cavity (11) is provided with a plurality of first through grooves (14), and the flow dividing cavity (11) is communicated with the rotating groove (19) through the first through grooves (14).

3. A low torque operating high pressure shut off valve according to claim 2 wherein: the size of the rotating groove (19) is larger than that of the shunting cavity (11), and the arc-shaped groove (6) is communicated with the rotating groove (19).

4. A low torque operating high pressure shut off valve according to claim 2 wherein: the internal surface of rotating groove (19) rotates and is connected with first sealing washer (7), the upper end and the lower extreme of first sealing washer (7) are fixed mounting respectively has first valve (8) and second sealing washer (9), the lower extreme of slide bar (4) runs through first valve (8) and fixed connection in the upper end of first sealing washer (7).

5. A low torque operating high pressure shut off valve according to claim 4 wherein: the inside of first valve (8), first sealing washer (7) and second sealing washer (9) is seted up a plurality of jointly and is run through second that both ends about it and lead to groove (71), a plurality of collection groove (12) have been seted up to the diapire that rotates groove (19), each first logical groove (14) and each second lead to groove (71) and all are located one of them collection groove (12) directly over.

6. A low torque operating high pressure shut off valve according to claim 2 wherein: a spherical groove (13) is formed in one side, away from the rotating groove (19), of the first through groove (14) jointly, and the spherical groove (13), the partition groove (15), the flowing groove (17) and the second open groove (31) are communicated with one another from top to bottom in sequence.

7. A low torque operating high pressure shut off valve according to claim 6 wherein: the right part of the top wall of the separation groove (15) is provided with a moving groove (16), the moving groove (16) and the ball groove (13) are not connected with each other, the lower part of the outer surface of the valve body (1) is provided with a thread groove (18), and the thread groove (18), the separation groove (15) and the moving groove (16) are communicated with each other.

8. A low torque operating high pressure shut off valve according to claim 7 wherein: threaded rod (52) threaded connection is in the same place control mechanism (5) and valve body (1) threaded connection in thread groove (18), stopper (55) fixed connection is in the upper end right part of second valve (53), the upper end fixed mounting of second valve (53) has sealed pad (54), stopper (55) and second valve (53) are located removal groove (16) and cut off inside groove (15) respectively with sealed pad (54), threaded rod (52) pass the one end rotation of thread groove (18) and connect the one side that the surface and threaded rod (52) of second valve (53) and stopper (55) are close to each other, the one end that second valve (53) were kept away from in threaded rod (52) is fixed connection to disc (51).