CN212338204U - Valve maintained on line - Google Patents

Abstract

A valve maintained on line comprises a valve body, a valve core and a first sealing assembly, wherein an inlet and an outlet are formed in the valve body; the valve also comprises a moving part, the valve body is provided with an access hole, and the moving part is arranged at the access hole and is in sealing connection with the valve body; the valve core can switch and rotate between the inlet or the outlet and the access hole; when the valve needs to be overhauled, the movable part can make valve core sealing contact to isolate the valve cavity from the access hole and enable the first sealing assembly to be located in the access hole; when the valve maintained on line normally works, the movable part and the valve core are unsealed, and the valve cavity is communicated with the access hole. The utility model has the advantages that: when the valve core needs to be overhauled, the valve cavity and the access hole are separated by the valve core, an overhaul worker overhauls in the access hole, the inlet and the outlet are still communicated, normal operation of a pipeline system is not affected, and economic loss is reduced.

Description

Valve maintained on line

Technical Field

The utility model relates to a pipe-line system field especially relates to a valve of online maintenance.

Background

In the piping system, a valve is generally installed for closing to cut off the water supply in an emergency. And the sealing element or other wearing parts in the valve can be damaged in the long-term use process, so that the valve leaks, and the wearing parts need to be replaced.

In the prior art, before the valve is maintained, the operation of a pipeline system needs to be stopped, and the pipeline cannot be maintained in normal operation, so that the maintenance is inconvenient.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides an online valve of maintaining to above-mentioned technical problem, technical scheme as follows:

a valve maintained on line comprises a valve body, a valve core and a first sealing assembly, wherein an inlet and an outlet which are arranged oppositely are formed in the valve body, a valve cavity which is communicated with the inlet and the outlet is formed in the valve body, the valve core is rotatably arranged in the valve cavity, and the first sealing assembly is arranged on the valve core and can open/close the inlet or the outlet under the driving of the valve core; the valve for on-line maintenance further comprises a movable part, an access hole communicated with the valve cavity is formed in the valve body, and the movable part is installed at the access hole and is in sealing connection with the valve body; the valve core can switch and rotate between the inlet or the outlet and the access hole; when the valve needs to be overhauled, the movable part can be in sealing contact with the valve core to isolate the valve cavity from the access opening, and the first sealing assembly is located in the access opening; when the valve maintained on line normally works, the movable part and the valve core are unsealed, and the valve cavity is communicated with the access hole.

So set up, when needs overhaul, the case separates the valve pocket reaches the access hole, and the maintainer overhauls in the access hole, and import, export still communicate, do not influence pipeline system normal operating, reduce economic loss.

In an embodiment of the present invention, the valve maintained on line further includes a valve cover, the valve cover is disposed on the movable member and can keep away from the movable member, and one end of the access hole is sealed.

In an embodiment of the present invention, a drain hole is disposed on the valve cover, the drain hole communicates with the access opening, and a control member is disposed at an opening of the drain hole.

So set up, the outlet can drain the intraoral liquid of maintenance, when not needing the maintenance, utilize the control to close the outlet.

In an embodiment of the present invention, the valve maintained on line further includes an adjusting unit, the adjusting unit is installed at one end of the moving member, and the adjusting unit can drive the moving member to move.

So set up, through the regulating unit to control the valve pocket with access hole intercommunication or isolation.

In an embodiment of the present invention, the one end of the moving member is kept away from the one end of the adjusting unit extends into the access opening and can be along the axial movement of the access opening, the adjusting unit can adjust the moving member extends into the depth of the access opening.

In an embodiment of the present invention, the adjusting unit includes a connecting member and a first adjusting member, the moving member is far away from one end of the valve element and is provided with a first boss along a radial direction, one end of the connecting member is inserted into the first boss and connected to the valve body, and the first adjusting member is rotatably connected to the connecting member and can follow the axial movement of the connecting member.

So set up, through adjusting the connecting piece with the cooperation of first regulating part is adjusted the moving part stretches into the position of access hole.

The utility model discloses an in the embodiment, the one end of valve gap radially is equipped with the second boss, adjusting unit still includes the second regulating part, the one end of connecting piece certainly first boss stretches out and runs through in the second boss, and with the second regulating part is connected, in order to incite somebody to action the valve gap locking in first boss.

So set up, the second regulating part with be close to the first regulating part cooperation of valve gap is in order to fix the valve gap.

The utility model discloses an in the embodiment, seted up on the valve body with the connecting hole of valve pocket intercommunication, the case still includes the valve shaft, the valve shaft connect in the case just wears to locate the connecting hole, and follow the connecting hole stretches out to the valve body outside.

In an embodiment of the present invention, the valve element further includes a contact portion, the contact portion is circumferentially provided with a first sealing groove, the first sealing assembly includes a first sealing member disposed in the first sealing groove, and the first sealing member can abut against the side wall of the inlet/the outlet; the moving part is close to the inner side wall circumference of case has seted up the second seal groove, is equipped with the second sealing member in the second seal groove, the second sealing member with the contact site contact forms sealedly.

So configured, make the said contact site seal the said inlet/outlet port, and can seal the moving part.

In one embodiment of the present invention, the inner side of the second sealing member is disposed opposite to the axial direction of the access opening.

So set up, can lead just the second sealing member with the contact of contact site, and play the water conservancy diversion effect to liquid.

Compared with the prior art, the utility model provides a pair of valve of maintaining on line can seal through the setting the moving part of access hole for when overhauing, rotate the case, so that the case can with moving part sealing connection, will the valve pocket with the access hole is kept apart, and the maintainer is in the access hole overhauls, and export, valve pocket and import still communicate, do not influence pipe-line system's normal operating.

Drawings

Fig. 1 is a first structural sectional view of the valve for on-line maintenance according to the present invention in normal operation;

fig. 2 is a structural sectional view ii of the valve for on-line maintenance according to the present invention in normal operation;

fig. 3 is a structural sectional view of the valve for on-line maintenance provided by the present invention in a closed state;

fig. 4 is a structural sectional view of the valve maintained on line in a maintenance state provided by the present invention;

fig. 5 is a structural sectional view of the valve maintained on line according to the present invention after the valve cover is removed in the maintenance state;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

fig. 7 is a structural sectional view of the valve for on-line maintenance according to the present invention, in which the first sealing assembly is removed in a maintenance state;

fig. 8 is a schematic structural diagram of a valve element of the valve maintained on line according to the present invention.

The symbols in the drawings represent the following meanings:

100. valves maintained on-line; 10. a valve body; 11. an inlet; 12. an outlet; 13. a valve cavity; 14. an access hole; 15. connecting holes; 141. a third seal groove; 142. a third seal member; 20. a valve core; 21. a valve shaft; 22. a contact portion; 221. a first seal groove; 222. a step; 223. a reinforcing surface; 224. a connecting portion; 2241. mounting holes; 30. a first seal assembly; 31. a first seal member; 32. pressing a ring; 40. a movable member; 41. a first boss; 42. a second seal groove; 43. a second seal member; 50. a valve cover; 51. a second boss; 52. a water drain hole; 53. a control member; 54. a fourth seal groove; 55. a fourth seal member; 60. an adjustment unit; 61. a connecting member; 62. a first adjustment member; 63. a second adjustment member.

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.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 8, the present invention provides an on-line maintenance valve 100 (hereinafter referred to as valve 100), the valve 100 is used for cutting off or connecting a pipeline in a pipeline system, in this embodiment, the valve 100 is a ball valve, and of course, in other embodiments, the valve 100 may also be a gate valve or a butterfly valve.

Specifically, the valve 100 includes a valve body 10, an inlet 11 and an outlet 12 are opened at two ends of the valve body 10, a valve cavity 13 is provided in the valve body 10, and when the valve 100 is in an open state, the valve cavity 13 is communicated with the inlet 11 and the outlet 12. In this embodiment, the inlet 11 and the outlet 12 are disposed at two opposite ends of the valve body 10, and in other embodiments, the inlet 11 and the outlet 12 may be disposed at two adjacent sides of the valve body 10.

Further, the valve 100 further includes a valve core 20, a first sealing assembly 30 and a movable member 40, the valve core 20 is located in the valve cavity 13, the valve core 20 is rotatably installed in the valve cavity 13, the first sealing assembly 30 is installed on the valve core 20, and the valve core 20 can open/seal the inlet 11 or the outlet 12 under the driving of the valve core 20, so as to realize the pipeline cutoff function of the valve 100; the valve body 10 is provided with an access opening 14 communicated with the valve cavity 13, and the movable member 40 is installed at the access opening 14 and is connected with the valve body 10 in a sealing manner. The valve core 20 can be switched to rotate between the inlet 11/outlet 12 and the service opening 14.

When the maintenance is needed, the movable part 14 can be in sealing contact with the valve core 20 to isolate the maintenance opening 14 from the valve cavity 13, and the first sealing assembly 30 is positioned in the maintenance opening 14, so that a maintenance worker can maintain or replace the first sealing assembly 30 or other vulnerable parts in the maintenance opening 14, and in the maintenance process, the inlet 11 and the outlet 12 are communicated with the valve cavity 13, the pipeline system is still in a normal working state, the operation does not need to be stopped, and the economic loss can be reduced; when the valve 100 works normally, the movable member 40 is unsealed from the valve core 20, and the valve cavity 13 is communicated with the access opening 14. It should be noted that normal operation of the valve 100 refers to a condition in which the valve 100 does not require servicing.

A third sealing groove 141 is formed in the inner side of the access opening 14, a third sealing element 142 is arranged in the third sealing groove 141, and the third sealing element 142 abuts against the outer side of one end of the movable element 40, which extends into the access opening 14, so that the movable element 40 is hermetically connected with the valve body 10. In this embodiment, the valve element 20 is capable of sealing the inlet 11, and in other embodiments, the valve element 20 may also seal the outlet 12 according to different designs.

The valve spool 20 includes a valve shaft 21, and the installer can rotate the valve shaft 21 to enable the valve spool 20 to rotate to seal the inlet 11/outlet 12 or to unseal the inlet 11/outlet 12.

Referring to fig. 1 to 4, the valve element 20 includes a contact portion 22, when the valve 100 is in an open state and does not need to be repaired, two ends of the contact portion 22 are respectively spaced from a sidewall of the access opening 14 to communicate the access opening 14 with the valve cavity 13, and when the valve needs to be repaired, the contact portion 22 is in sealing contact with the movable member 40, and the contact portion 22 can seal the movable member 40.

Preferably, the contact portion 22 is circumferentially provided with a first sealing groove 221, the first sealing assembly 30 includes a first sealing member 31, the first sealing member 31 is disposed in the first sealing groove 221, and when the pipeline system needs to be closed, the valve element 20 makes the first sealing member 31 abut against the side wall of the inlet 11/the outlet 12 to seal the inlet 11/the outlet 12, so that the valve 100 is in a closed state.

Referring to fig. 7, the contact portion 22 is provided with a step 222, the first sealing assembly 30 further includes a pressing ring 32, the pressing ring 32 is detachably fixed on the step 222, and the pressing ring 32 is partially abutted against the first sealing member 31 to fix the first sealing member 31. When the first seal member 31 needs to be replaced, the pressing ring 32 is removed, and the first seal member 31 is removed. In the present embodiment, the pressing ring 32 is fixed to the contact portion 22 by a bolt, and the first sealing member 31 is a Y-shaped sealing ring, but in other embodiments, the pressing ring 32 may be fixed to the contact portion 22 by other methods, and the first sealing member 31 may also be a sealing member with other cross sections being long.

In the present embodiment, the first seal groove 221 is provided obliquely to the axial direction of the valve body 20, that is, when the contact portion 22 is located in the service opening 14, the first seal groove 221 is provided obliquely to the axial direction of the service opening 14, and accordingly, the first seal 31 is inclined to the axial direction of the valve body 20, and the outer side of the pressing ring 32 is provided protrudingly to the step 222 in the radial direction of the contact portion 22, and the protrudingly portion abuts against the first seal 31 to fix the first seal 31. In other embodiments, the pressing ring 32 may fix the first sealing member 31 in other manners.

Preferably, referring to fig. 6, the first seal groove 221 is of a dovetail groove structure, that is, the notch of the first seal groove 221 is narrow and the bottom is wide, and a gap is formed between the first seal groove 221 and the first seal 31, so that the first seal 31 can be prevented from being separated from the first seal groove 221, and under the action of pressure, liquid enters the first seal groove 221 along the gap, so as to provide pressure to the first seal 31, and thus the sealing effect of the first seal 31 can be enhanced. In this embodiment, the first seal groove 221 is a two-layer dovetail groove, but in other embodiments, one or more than three layers of dovetail grooves may be provided.

Referring to fig. 8, the contact portion 22 is disc-shaped and extends along a circumferential direction to form a reinforcing surface 223, and the reinforcing surface 223 can reinforce the sealing engagement between the contact portion 22 and the movable member 40 and the inlet 11/outlet 12. The two sides of the reinforcing surface 223 symmetrically extend to form connecting parts 224, the two sides of the valve body 10 are respectively provided with connecting holes 15 communicated with the valve cavity 13, one end of the connecting part 224, which is far away from the reinforcing surface 223, is provided with a mounting hole 2241, the valve shaft 21 is mounted in one of the mounting holes 2241, hermetically penetrates through the corresponding connecting hole 15, and extends out of the valve body 10 from the connecting hole 15 so as to allow an overhaul worker to rotate the valve core 20; the valve body 20 is rotatably connected to the outer side wall of the valve body 10 through another mounting hole 2241 and another connection hole 15, and the service person rotates the valve shaft 21 on the outer side of the valve body 10 to rotate the valve body 20 to rotationally switch the contact portion 22 between the inlet 11/outlet 12 and the service port 14.

The inner side wall of the movable element 40 close to the valve core 20 is circumferentially provided with a second sealing groove 42, and when a second sealing element 43 is arranged in the second sealing groove 42 and overhauled, the second sealing element 43 is abutted against the contact part 22, so that the valve core 20 is hermetically connected with the movable element 40. In other embodiments, the second sealing groove 42 may also be opened at the contact portion 22, and the second sealing element 43 may be capable of being sealingly connected with the movable member 40.

With continued reference to fig. 6, the inner side of the second sealing element 43 is disposed obliquely relative to the axial direction of the service opening 14, so as to guide the sealing contact between the second sealing element 43 and the contact portion 22, and to guide the liquid.

The valve 100 further includes a valve cover 50, two ends of the movable member 40 are open and disposed, the valve cover 50 covers one end of the movable member 40 and seals an opening at one end of the movable member 40 away from the valve element 20, one end of the valve cover 50 is open and disposed, one end provided with the opening extends into the movable member 40, and an outer side wall of the valve cover 50 is attached to an inner side wall of the movable member 40, so that the valve cover 50 is hermetically connected to the movable member 40.

Preferably, the valve cover 50 is provided with a drain hole 52, a control member 53 is provided at an opening of the drain hole 52, and during maintenance, the control member 53 is opened to discharge the liquid in the maintenance opening 14 through the drain hole 52 for maintenance. After the maintenance is completed, the control member 53 is closed to seal the valve body 10. In this embodiment, the control member 53 is a drain valve, and in normal operation, the access opening 14 is communicated with the valve cavity 13, and the excess liquid in the valve 100 can be automatically discharged through the drain valve, but of course, in other embodiments, the control member 53 can also be another valve member such as a ball valve.

Further, a fourth sealing groove 54 is formed in the outer side of one end, extending into the movable member 40, of the valve cover 50, a fourth sealing element 55 is arranged in the fourth sealing groove 54, and the fourth sealing element 55 abuts against the inner side of one end, extending into the access opening 14, of the movable member 40, so that the valve cover 50 is in sealing connection with the movable member 40.

Specifically, the valve 100 further includes an adjusting unit 60, the adjusting unit 60 is mounted at an end of the movable member 40 away from the access opening 14, and the adjusting unit 60 can drive the movable member 40 to move.

In the present embodiment, one end of the movable member 40 protrudes into the access opening 14 and can move along the axial direction of the access opening 14, and the adjusting unit 60 can adjust the depth of the movable member 40 protruding into the access opening 14. In other embodiments, the moveable member 40 may also laterally seal the access opening 14.

Further, the adjusting unit 60 includes a connecting member 61 and a first adjusting member 62, a first boss 41 is radially disposed at one end of the movable member 40 away from the valve cavity 13, the first boss 41 is circumferentially disposed along the movable member 40, the connecting member 61 penetrates through the first boss 41 and is connected to the valve body 10, and the first adjusting member 62 is rotatably connected to the connecting member 61 and can move along an axial direction of the connecting member 61 to drive the movable member 40 to move along an axial direction of the access opening 14.

The end of the valve cover 50 away from the movable member 40 is provided with a second boss 51 along the radial direction, the second boss 51 is arranged along the circumferential direction of the valve cover 50, the adjusting unit 60 further includes a second adjusting member 63, and one end of the connecting member 61 extends from the first boss 41, penetrates through the second boss 51, and is connected with the second adjusting member 63, so as to lock the valve cover 50 on the first boss 41.

In this embodiment, the connecting member 61 is a bolt, the first adjusting member 62 and the second adjusting member 63 are nuts, and the number of the nuts is three, two of the nuts are located on two sides of the first boss 41 and are in threaded connection with the bolt, the remaining one nut is located on one side of the second boss 51 far away from the first boss 41 and is in threaded connection with the bolt, and the nut close to the second boss 51 can be abutted against the second boss 51 to fix the valve cover 50.

When the maintenance is required, the nuts on both sides of the first boss 41 are rotated to adjust the movable member 40 toward the direction close to the valve element 20, after the adjustment is completed, the nuts on both sides of the first boss 41 are tightened to lock the movable member 40, and the nuts on one side of the second boss 51 away from the first boss 41 are tightened to fix the valve cover 50. In other embodiments, the nuts are not limited to three, but may be more than three. In other embodiments, the first adjustment member 62 and the second adjustment member 63, and the connection member 61 may also be other members capable of matching adjustment.

In the working process, when the valve 100 has a fault and needs to be overhauled, the valve shaft 21 is rotated to rotate the contact part 22 to the position of the access opening 14, the first adjusting piece 62 is adjusted to move the movable piece 40 towards the direction close to the valve core 20, so that the movable piece 40 is abutted against the contact part 22 to separate the valve cavity 13 from the access opening 14, the control piece 53 is opened to discharge water in the access opening 14, the second adjusting piece 63 is rotated to open the valve cover 50, the pressing ring 32 is detached from the contact part 22, the first sealing piece 31 or other wearing parts are replaced, at the moment, the inlet 11, the valve cavity 13 and the outlet 12 are communicated, and the pipeline system is in a normal working state. After the maintenance is finished, the valve cover 50 is closed, the control member 53 is closed, the first adjusting member 62 is adjusted, and the movable member 40 is moved away from the contact portion 22, so that the valve cavity 13 is communicated with the maintenance opening 14, and the valve 100 completes the maintenance.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An on-line maintenance valve comprises a valve body (10), a valve core (20) and a first sealing assembly (30), wherein the valve body (10) is provided with an inlet (11) and an outlet (12) which are oppositely arranged, the valve body (10) is internally provided with a valve cavity (13) which is respectively communicated with the inlet (11) and the outlet (12), the valve core (20) is rotatably arranged in the valve cavity (13), and the first sealing assembly (30) is arranged on the valve core (20) and can open/close the inlet (11) or the outlet (12) under the driving of the valve core (20);

the valve is characterized in that the valve for on-line maintenance further comprises a moving part (40), an access hole (14) communicated with the valve cavity (13) is formed in the valve body (10), and the moving part (40) is installed at the access hole (14) and is in sealing connection with the valve body (10); the valve core (20) can switch and rotate between the inlet (11) or the outlet (12) and the service port (14); when the valve is maintained on line, the movable piece (40) can be in sealing contact with the valve core (20) to isolate the valve cavity (13) from the access opening (14) and enable the first sealing assembly (30) to be located in the access opening (14); when the valve maintained on line normally works, the movable piece (40) and the valve core (20) are unsealed, and the valve cavity (13) is communicated with the access hole (14).

2. The on-line maintenance valve according to claim 1, further comprising a valve cover (50), wherein the valve cover (50) covers the movable member (40) and can seal one end of the movable member (40) away from the access opening (14).

3. The valve for on-line maintenance according to claim 2, wherein a drainage hole (52) is formed in the valve cover (50), the drainage hole (52) is communicated with the access opening (14), and a control member (53) is arranged at the opening of the drainage hole (52).

4. The on-line maintenance valve according to claim 2, further comprising an adjusting unit (60), wherein the adjusting unit (60) is mounted at one end of the movable member (40), and the adjusting unit (60) can drive the movable member (40) to move.

5. The on-line maintenance valve according to claim 4, characterized in that one end of the movable member (40) away from the adjusting unit (60) extends into the access opening (14) and can move along the axial direction of the access opening (14), and the adjusting unit (60) can adjust the depth of the movable member (40) extending into the access opening (14).

6. The valve for on-line maintenance according to claim 4, wherein the adjusting unit (60) comprises a connecting member (61) and a first adjusting member (62), a first boss (41) is radially arranged at one end of the movable member (40) far away from the valve core (20), one end of the connecting member (61) penetrates through the first boss (41) and is connected with the valve body (10), and the first adjusting member (62) is rotatably connected with the connecting member (61) and can move along the axial direction of the connecting member (61).

7. The on-line maintenance valve according to claim 6, wherein one end of the valve cover (50) is provided with a second boss (51) in a radial direction, and the adjusting unit (60) further comprises a second adjusting member (63), and one end of the connecting member (61) extends from the first boss (41) and penetrates through the second boss (51), and is connected with the second adjusting member (63) to lock the valve cover (50) to the first boss (41).

8. The valve for on-line maintenance according to claim 1, wherein the valve body (10) is provided with a connecting hole (15) communicated with the valve cavity (13), the valve core (20) further comprises a valve shaft (21), and the valve shaft (21) is connected to the valve core (20), passes through the connecting hole (15), and extends out of the connecting hole (15) to the outside of the valve body (10).

9. The on-line maintenance valve according to claim 1, wherein the valve core (20) further comprises a contact portion (22), the contact portion (22) is circumferentially provided with a first sealing groove (221), the first sealing assembly (30) comprises a first sealing member (31) arranged in the first sealing groove (221), and the first sealing member (31) can abut against the side wall of the inlet (11)/the outlet (12);

a second sealing groove (42) is formed in the inner side wall, close to the valve core (20), of the movable piece (40) along the circumferential direction, a second sealing piece (43) is arranged in the second sealing groove (42), and the second sealing piece (43) is in contact with the contact portion (22) to form sealing.

10. Valve for on-line maintenance according to claim 9, characterized in that the inner side of the second seal (43) is arranged obliquely in relation to the axial direction of the access opening (14).

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