CN216343989U - Y-shaped stop valve - Google Patents
Y-shaped stop valve Download PDFInfo
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- CN216343989U CN216343989U CN202123257983.1U CN202123257983U CN216343989U CN 216343989 U CN216343989 U CN 216343989U CN 202123257983 U CN202123257983 U CN 202123257983U CN 216343989 U CN216343989 U CN 216343989U
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Abstract
The utility model provides a Y-shaped stop valve, which belongs to the technical field of valve sealing and comprises the following components: the valve comprises a valve body, a valve cover, a valve seat and a valve rod, wherein the bottom end of the valve rod is connected with a valve clack; a locking device; and the sealing structure is suitable for being abutted with the valve seat to form secondary sealing. When the Y-shaped stop valve is used, the valve clack is abutted against the valve seat, so that the movement of fluid can be blocked, primary sealing is formed, when the primary sealing leaks, the sealing structure is tightly attached to the valve seat, the sealing is formed secondarily under the combined action of medium pressure and valve rod closing force, the stop valve can still work continuously, the function of one-valve double sealing is achieved, the service life of the valve is prolonged, and meanwhile, the stop valve can meet more use working condition environments.
Description
Technical Field
The utility model relates to the technical field of valve sealing, in particular to a Y-shaped stop valve.
Background
The Y-shaped stop valve is a valve which drives a valve rod to drive a valve clack to move up and down to be opened and closed by a driving device. The method is simple and convenient to operate, short in stroke and widely applied to the fields of petrochemical industry, chemical industry and the like.
The Y-shaped stop valve is provided with a Y-shaped three-way valve body and a self-sealing valve cover, wherein the outer seal is formed by sealing a seal ring at the connecting part of the valve cover and the valve body and forming an outer seal by a filler between the valve rod and the valve cover, the inner seal is formed by sealing a valve clack and a valve seat, in order to increase the sealing effect of the inner seal, hard alloy is usually overlaid at the contact part of the valve clack and the valve seat to form a sealing surface, when the sealing surface is damaged by washing, the machine can only be stopped to take down the valve integrally, and overlaying repair is carried out on the sealing surface between the valve clack and the valve seat again.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to solve the technical problem of overcoming the defects that when the sealing surface of the stop valve in the prior art is damaged, the stop valve can only be stopped to detach the whole valve and then the surfacing repair is carried out on the sealing surface between the valve clack and the valve seat, thereby providing the Y-shaped stop valve.
In order to solve the above technical problem, the present invention provides a Y-type stop valve, comprising:
the valve comprises a valve body and a valve cover arranged on the top of the valve body;
the valve seat is detachably arranged inside the valve body;
the valve rod penetrates through the valve cover, the bottom end of the valve rod is connected with a valve clack, and the valve clack is suitable for being abutted with the valve seat to form primary sealing;
the locking device is arranged on the valve clack;
and the sealing structure is sleeved on the valve clack and is positioned between the locking device and the positioning ring, and the sealing structure is suitable for being abutted against the valve seat to form secondary sealing.
Optionally, the locking device comprises a positioning ring, and the positioning ring is in threaded connection with the valve clack;
the sealing structure comprises an elastic metal ring which is sleeved on the valve clack, and the elastic metal ring is positioned between the positioning ring and the valve seat;
the end face of the elastic metal ring facing the valve seat extends out of a sealing part, the positioning ring is suitable for extruding the elastic metal ring when rotating along the valve clack, so that the sealing part is abutted against the valve seat, and the sealing part is elastically deformed and is in an extruding state;
and the round nut is connected to the valve clack through threads and arranged on one side, far away from the elastic metal ring, of the positioning ring.
Optionally, the sealing portion extends toward an axial direction of the elastic metal ring.
Optionally, the part of the valve flap extending out of the valve flap in the radial direction is provided with a positioning end face;
the end face of the elastic metal ring, which extends out of the sealing part, is suitable for abutting against the positioning end face.
Optionally, a process groove is formed in the end face, away from the elastic metal ring, of the positioning ring.
Optionally, the locking device further comprises a valve clack nut, and the valve clack nut is in threaded connection with the valve clack;
and the valve clack nut are connected to the valve rod through the split ring.
Optionally, the valve seat is mounted on the valve body by a screw thread.
Optionally, a metal sealing ring and a graphite sealing ring are arranged between the valve seat and the valve body.
Optionally, the valve cover is fixedly mounted on the top of the valve body through a pre-pressing ring;
the valve rod is slidably mounted on the valve cover.
Optionally, a driving device is connected to the top end of the valve rod, and the driving device is suitable for driving the valve rod to rotate and move along the axis of the valve rod.
The technical scheme of the utility model has the following advantages:
1. according to the Y-shaped stop valve provided by the utility model, the valve cover is arranged on the valve body, the detachable valve seat is arranged in the valve body in a threaded manner, the valve rod is arranged on the valve cover in a penetrating manner, the bottom end of the valve rod is connected with the valve clack which is suitable for being abutted against the valve seat, and the sealing structure is sleeved on the valve clack. Y type stop valve is in the use, and when valve clack and disk seat butt, can block fluidic removal, form once sealed, when once sealed emergence is leaked, seal structure tightly laminates on the disk seat, and the secondary forms sealedly under the combined action of closing power at medium pressure and valve rod, and the stop valve still can continue work, plays a valve double sealing's function, extension valve life, makes the stop valve satisfy more service condition environment simultaneously.
2. The utility model provides a Y-shaped stop valve.A locking device comprises a positioning ring and a round nut, and a sealing structure comprises an elastic metal ring; holding ring threaded connection is on the valve clack, round nut threaded connection presses on the valve clack on the holding ring, prevent that the screw thread of holding ring at long-time during operation is not hard up, the holding ring can move along the valve rod when rotating on the valve clack, remove the in-process at the holding ring, the elastic metal circle can be squeezed to the holding ring, make elastic metal circle and valve clack closely laminate, and can prevent elastic metal circle rebound, when installing the valve rod to the valve body on, the control valve rod can make the sealing portion butt of elastic metal circle on the disk seat, and the deformation of certain degree can also take place for the sealing portion, form secondary seal, prevent the fluid outflow.
3. According to the Y-shaped stop valve provided by the utility model, the sealing part of the elastic metal ring extends towards the axial direction of the elastic metal ring, so that the sealing part is prevented from radially extending outwards to increase the size of the elastic metal ring.
4. The utility model provides a Y-shaped stop valve.A part of a valve clack transversely extending out of a valve rod is provided with a positioning end face matched with an elastic metal ring, a certain elastic gap is formed between the positioning end face and the elastic metal ring in the radial direction, the end part of the elastic metal ring extending out of a sealing part is suitable for abutting against the upper surface of a valve seat, the valve rod is installed after the elastic metal ring is extruded to the positioning end face through a positioning ring, and at the moment, a driving device controls the valve rod to enable the sealing part of the elastic metal ring to abut against the valve seat, and the sealing part generates certain elastic deformation to form secondary sealing.
5. According to the Y-shaped stop valve provided by the utility model, the end face of the positioning ring, which is far away from the elastic metal ring, is provided with the process groove, and an operator can rotate the positioning ring by inserting a tool into the process groove.
6. The locking device of the Y-shaped stop valve further comprises a split ring, and the valve clack nut are connected to the valve rod through the split ring.
7. According to the Y-shaped stop valve provided by the utility model, the valve seat is arranged on the valve body through the threads, so that the Y-shaped stop valve is convenient to disassemble and convenient for an operator to operate.
8. According to the Y-shaped stop valve provided by the utility model, the metal sealing ring and the graphite sealing ring are arranged between the valve seat and the valve body, so that good sealing between the valve seat and the valve body is ensured.
9. According to the Y-shaped stop valve provided by the utility model, the valve cover is fixedly arranged on the valve body through the pre-pressing ring, the disassembly is convenient, the valve rod slides on the valve cover, and the top end of the valve rod is connected with the driving device, so that the valve rod can be driven to move along the axis of the valve rod, and the opening and closing of the stop valve are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a first angular cross-sectional view of a Y-stop valve provided in accordance with an embodiment of the present invention;
FIG. 2 is a second angular cross-sectional view of the Y-stop valve provided in accordance with an embodiment of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is an enlarged view of FIG. 3 at B;
fig. 5 is an enlarged view of fig. 3 at C.
Description of reference numerals:
1. a valve body; 2. pre-pressing a ring; 3. a valve clack nut; 4. a valve cover; 5. a valve stem; 6. a support; 7. a drive device; 8. a valve flap; 9. a positioning ring; 10. a valve seat; 11. an elastic metal ring; 12. a sealing part; 13. a metal seal ring; 14. a graphite seal ring; 15. a round nut; 16. and (4) opening the ring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Examples
The embodiment provides a specific implementation manner of a Y-type stop valve, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a valve cover 4 is installed on the top of a valve body 1, a valve rod 5 is arranged on the valve cover 4 in a penetrating manner, a detachable valve seat 10 is installed in the valve body 1, and a valve flap 8 which can be abutted to the valve seat 10 is connected to the bottom end of the valve rod 5; and a sealing structure is sleeved on the valve clack 8. When the Y-shaped stop valve is used, when the valve rod 5 is moved to enable the valve clack 8 to be abutted against the valve seat 10, the movement of fluid can be blocked, primary sealing is formed, when leakage occurs in the primary sealing, the valve seat 10 and the valve clack 8 can be replaced on site, and the stop valve does not need to be disassembled and integrally replaced; and when the on-the-spot spare part that can not change, can pull down valve gap 4, valve rod 5, support 6 and drive arrangement 7, control locking device, make seal structure tightly laminate on valve clack 8, make valve rod 5 and valve gap 4 install the back, seal structure butt is on disk seat 10, form secondary seal, the stop valve can continue to work, wait to change disk seat 10 and valve clack 8 to the stop valve after work is finished, avoid delaying longer time because of the sealed of stop valve reveals, make the stop valve satisfy more service environment.
As shown in fig. 3 and 4, the locking device comprises a positioning ring 9 and a round nut 15, and the sealing structure comprises an elastic metal ring 11; the locating ring 9 threaded connection is on valve clack 8, round nut 15 presses on locating ring 9 on valve clack 8 with threaded connection, locating ring 9 can move along valve rod 5 when rotating on valve rod 5, in the in-process that locating ring 9 removed, locating ring 9 can lock elastic metal ring 11, tighten round nut 15 simultaneously, make elastic metal ring 11 link together with valve clack 8, after installing valve rod 5 this moment, the sealing 12 and the disk seat 10 butt of elastic metal ring 11, and sealing 12 takes place elastic deformation and is in the extrusion state, form secondary seal, prevent that the fluid from flowing out.
Specifically, the part of valve clack 8 radially stretching out valve rod 5 has the location terminal surface, the tip that elastic metal circle 11 stretches out sealing 12 is suitable for with location terminal surface butt, through control locking device, can make the terminal surface butt of elastic metal circle 11 below on the terminal surface of location to can prevent elastic metal circle 11 upwards to move, when installing valve rod 5, can be so that elastic metal circle 11's sealing 12 and disk seat 10 butt, and sealing 12 takes place the elastic deformation of certain degree, form secondary seal.
Specifically, the seal portion 12 of the elastic metal ring 11 extends toward the axial direction of the elastic metal ring 11, and the seal portion 12 is prevented from extending radially outward to increase the size of the elastic metal ring 11.
As an alternative embodiment, the locking device may also be a locking ring, as long as the elastic metal ring 11 can be locked.
In this embodiment, a process groove is formed in the end surface of the positioning ring 9 away from the elastic metal ring 11, that is, the upper end surface of the positioning ring 9 is provided with the process groove, and an operator can insert a tool into the process groove to rotate the positioning ring 9.
In this embodiment, locking device still includes valve clack nut 3, and valve clack nut 3 sets up in valve clack 8 top, and to the ring 16 cover on valve rod 5, valve clack nut 3 and valve clack 8 carry out the screw thread locking. The split ring 16 can be further fastened by the flap nut 3, so that the flap 8, the flap nut 3, the split ring 16 and the valve rod 5 are organically connected together.
As an alternative embodiment, the sealing structure may also be a non-metal elastic sealing ring, for example, a non-metal elastic sealing ring such as a rubber sealing ring may be used to achieve the sealing effect under low pressure conditions with low pressure.
As shown in fig. 5, the portion that stretches out in the valve body 1 is equipped with the external screw thread, is equipped with the internal thread on the disk seat 10, and disk seat 10 passes through the screw thread to be installed on valve body 1, and it is convenient to dismantle, and the operating personnel of being convenient for operates.
A metal sealing ring 13 and a graphite sealing ring 14 are arranged between the valve seat 10 and the valve body 1, so that good sealing between the valve seat 10 and the valve body 1 is ensured.
In this embodiment, valve gap 4 is through 2 fixed mounting on valve body 1 in advance, convenient to detach, and valve rod 5 slides on valve gap 4, and the top of valve rod 5 is connected with drive arrangement 7, can drive valve rod 5 and remove along its axis, realizes opening and closing of stop valve.
Specifically, drive arrangement 7 is the worm gear structure, and the external connection hand wheel, operating personnel pass through the hand wheel drive with power transmission for valve rod 5 can remove, and the worm gear can be adjusted rotatory effort for the straight line effort along the valve body center.
As an alternative embodiment, the driving device 7 may also be provided as a pneumatic device or an electric device, and the valve rod 5 is directly driven to move by an air cylinder or an electric actuator.
In this embodiment, a bracket 6 is further disposed outside the valve cap 4, the driving device 7 is mounted on the bracket 6, and the valve rod 5 is inserted into the bracket 6 and connected to the driving device 7.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the utility model.
Claims (10)
1. A Y-stop valve, comprising:
the valve comprises a valve body (1) and a valve cover (4) arranged at the top of the valve body (1);
the valve seat (10) is detachably arranged in the valve body (1);
the valve rod (5) penetrates through the valve cover (4), the bottom end of the valve rod (5) is connected with a valve clack (8), and the valve clack (8) is suitable for being abutted with the valve seat (10) to form primary sealing;
the locking device is arranged on the valve clack (8);
and the sealing structure is sleeved on the valve clack (8) and is positioned between the locking device and the positioning ring (9), and the sealing structure is suitable for being abutted against the valve seat (10) to form secondary sealing.
2. The Y-stop valve according to claim 1, characterized in that said locking means comprise a positioning ring (9) screwed on said flap (8);
the sealing structure comprises an elastic metal ring (11) which is sleeved on the valve clack (8), and the elastic metal ring (11) is positioned between the positioning ring (9) and the valve seat (10);
a sealing part (12) extends from the end face of the elastic metal ring (11) facing the valve seat (10), the positioning ring (9) is suitable for extruding the elastic metal ring (11) when rotating along the valve clack (8), so that the sealing part (12) is abutted against the valve seat (10), and the sealing part (12) is in an extrusion state after being elastically deformed;
and the round nut (15) is connected to the valve clack (8) through threads and is arranged on one side, away from the elastic metal ring (11), of the positioning ring (9).
3. Y-shaped shut-off valve according to claim 2, characterised in that the sealing portion (12) extends towards the axial direction of the resilient metal ring (11).
4. The Y-shaped shut-off valve according to claim 2, characterized in that the part of the valve flap (8) that projects radially beyond the valve flap (8) has a locating end face;
the end face of the elastic metal ring (11) extending out of the sealing part (12) is suitable for being abutted against the positioning end face.
5. The Y-shaped stop valve according to claim 2, characterized in that a technical groove is arranged on the end surface of the positioning ring (9) far away from the elastic metal ring (11).
6. The Y-type shut-off valve according to claim 2, characterized in that the locking device further comprises a flap nut (3) screwed onto the flap (8);
the valve clack (8) and the valve clack nut (3) are connected to the valve rod (5) through the split ring (16).
7. Y-shaped shut-off valve according to any one of claims 1-6, characterised in that the valve seat (10) is mounted on the valve body (1) by means of a screw thread.
8. The Y-shaped stop valve according to claim 7, characterized in that a metal sealing ring (13) and a graphite sealing ring (14) are arranged between the valve seat (10) and the valve body (1).
9. The Y-type stop valve according to any one of claims 1-6, characterized in that the valve cover (4) is fixedly mounted on the top of the valve body (1) through a pre-pressing ring (2);
the valve rod (5) is slidably mounted on the valve cover (4).
10. Y-shaped stop valve according to any one of claims 1-6, characterized in that the top end of the valve stem (5) is connected with a driving device (7), and the driving device (7) is suitable for driving the valve stem (5) to rotate and move along the axis thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123257983.1U CN216343989U (en) | 2021-12-22 | 2021-12-22 | Y-shaped stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123257983.1U CN216343989U (en) | 2021-12-22 | 2021-12-22 | Y-shaped stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216343989U true CN216343989U (en) | 2022-04-19 |
Family
ID=81165779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123257983.1U Active CN216343989U (en) | 2021-12-22 | 2021-12-22 | Y-shaped stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216343989U (en) |
-
2021
- 2021-12-22 CN CN202123257983.1U patent/CN216343989U/en active Active
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