CN211639735U

CN211639735U - Air-vent valve repair tools

Info

Publication number: CN211639735U
Application number: CN201922050251.1U
Authority: CN
Inventors: 李博文; 徐岩林; 马连喜; 戴丽娟
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-10-09
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses an air-vent valve repair tools belongs to oil gas pipeline maintenance technical field. The maintenance tool for the pressure regulating valve comprises a valve core push-pull device; the valve core push-pull device comprises: pushing and pulling a lead screw; the first baffle is fixedly connected to the first end of the push-pull lead screw; the second baffle is sleeved at the second end of the push-pull lead screw; and the push-pull lead screw nut is arranged on the push-pull lead screw and is positioned between the first baffle and the second baffle. The pressure regulating valve maintenance tool provided by the embodiment of the utility model can control the elastic force of the spring assembly in the valve core by arranging the valve core push-pull device in the process of dismounting the pressure regulating valve, thereby avoiding the damage of other accessories in the valve body caused by the rapid elastic deformation of the spring assembly; the valve core push-pull device can effectively shorten the maintenance operation time, reduce the labor intensity, improve the working efficiency, ensure the installation quality and simultaneously ensure the personal safety of operators in the operation process.

Description

Air-vent valve repair tools

Technical Field

The utility model relates to an oil gas pipeline maintenance technical field, in particular to air-vent valve repair tools.

Background

The pressure regulating valve can also be called a pressure reducing valve and is an important component in a gas delivery pipe network. Generally, a pressure regulating valve includes a first valve body and a second valve body, a valve core (the valve core has a spring assembly) is arranged in the first valve body, a valve seat is arranged in the second valve body, the first valve body and the second valve body are both provided with flange discs, and when the pressure regulating valve is used, the first valve body is connected with the second valve body through bolts so that the valve core is pressed on the valve seat.

Because the elastic pressure of the spring assembly in the pressure regulating valve is large, the weight of the valve body is heavy, and the disassembly, the assembly, the positioning and the movement are difficult when the pressure regulating valve is maintained. In the related art, the work is usually assisted by a crane or a hoist. However, due to the flexibility of the hanging strip, the pressure regulating valve can swing when the lifting is carried, which still does not facilitate the dismounting of the pressure regulating valve. After the bolt is removed, the first valve body and the second valve body are bonded due to paint on the surface or saponification of internal grease, but when the first valve body and the second valve body are stressed or vibrated, the pressure of the spring assembly in the valve core is rapidly released, so that not only are other accessories in the valve body easily damaged, but also the personal safety of operators is threatened.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air-vent valve repair tools can solve above-mentioned technical problem.

Specifically, the method comprises the following technical scheme:

the maintenance tool for the pressure regulating valve comprises a valve core push-pull device;

the valve core push-pull device comprises: pushing and pulling a lead screw; the first baffle is fixedly connected to the first end of the push-pull lead screw; the second baffle is sleeved at the second end of the push-pull lead screw; and the push-pull lead screw nut is arranged on the push-pull lead screw and is positioned between the first baffle and the second baffle.

In one possible design, the first stop is welded to the first end of the push-pull lead screw.

In one possible design, the first baffle has a threaded through hole, and the first baffle is connected to the first end of the push-pull lead screw through the threaded through hole;

the number of the push-pull lead screw nuts is two.

In one possible design, the valve core push-pull device further includes: rotating the handle;

the rotating handle is arranged on the push-pull lead screw nut.

In one possible embodiment, the second stop has a through hole, and the second stop is sleeved on the second end of the push-pull lead screw through the through hole.

In one possible design, the second baffle includes a plate body and a flange;

the flange forms a slot on the plate body, and the slot faces the second end of the push-pull lead screw.

In one possible design, the pressure regulating valve service tool further comprises a valve body bracket;

the valve body bracket includes: a tray; a base plate; and a lifting mechanism connected between the tray and the bottom plate.

In one possible design, the lifting mechanism comprises a lifting screw, a lifting screw nut and a limiting barrel;

the bottom of a limiting cylinder is fixed on the bottom plate, the first end of the lifting screw is fixedly connected with the tray, the second end of the lifting screw extends into the limiting cylinder, the lifting screw nut is arranged on the lifting screw, and the lifting screw nut is located at the top of the limiting cylinder.

In one possible design, the first end of the lifting screw is welded to the tray.

In one possible design, the tray comprises a pallet and two round tubes;

the two circular tubes are respectively arranged at two opposite ends of the supporting plate.

The embodiment of the utility model provides a technical scheme's beneficial effect is:

the pressure regulating valve maintenance tool provided by the embodiment of the utility model can control the elastic force of the spring assembly in the valve core by arranging the valve core push-pull device in the process of dismounting the pressure regulating valve, thereby avoiding the damage of other accessories in the valve body caused by the rapid elastic deformation of the spring assembly; the valve core push-pull device can be used for online maintenance of the pressure regulating valve and offline maintenance of the pressure regulating valve, can effectively shorten the maintenance operation time, reduce the labor intensity, improve the working efficiency, ensure the installation quality and simultaneously ensure the personal safety of operators in the operation process.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a valve core push-pull device according to an embodiment of the present invention;

fig. 2 is a schematic side view of a valve body bracket according to an embodiment of the present invention;

fig. 3 is a schematic front view of a valve body bracket according to an embodiment of the present invention.

The reference numerals in the drawings denote:

100. a valve core push-pull device;

101. pushing and pulling a lead screw;

102. a first baffle plate;

103. a second baffle; 1031. a plate body; 1032. a flange;

104. pushing and pulling the screw nut;

105. rotating the handle;

200. a valve body bracket;

201. a tray; 2011. a support plate; 2012. a circular tube;

202. a base plate;

203. a lifting mechanism; 2031. lifting a screw rod; 2032. a lifting lead screw nut; 2033. a limiting cylinder.

Detailed Description

In order to make the technical solutions and advantages of the present invention clearer, the following will describe the embodiments of the present invention in further detail with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are usually placed in when they are used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which they refer must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

The embodiment of the utility model provides a pressure regulating valve maintenance tool, as shown in fig. 1, the pressure regulating valve maintenance tool includes a valve core push-pull device 100;

the valve core push-pull device 100 includes: pushing and pulling the lead screw 101; a first baffle plate 102 fixedly connected to a first end (i.e., a lower end as shown in fig. 1) of the push-pull screw 101; a second baffle 103 sleeved at a second end (i.e., the upper end shown in fig. 1) of the push-pull screw 101; and a push-pull lead screw nut 104 disposed on the push-pull lead screw 101 and between the first barrier 102 and the second barrier 103;

it can be understood that the second blocking plate 103 sleeved on the push-pull lead screw 101 can slide on the push-pull lead screw 101. For convenience of description, the direction in which the push-pull screw nut 104 rotates to the outside of the push-pull screw 101 is defined as "forward direction", and the direction in which the push-pull screw nut 104 rotates to the inside of the push-pull screw 101 is defined as "reverse direction".

Under the condition of online maintenance, when the pressure regulating valve needs to be disassembled, the first valve body and the downstream flange are disassembled firstly, so that a certain distance is reserved between the first valve body and the downstream flange; then the valve core push-pull device 100 is placed between the two devices, wherein a first baffle plate 102 of the valve core push-pull device 100 is abutted against a downstream flange, and the push-pull lead screw nut 104 is rotated in the forward direction to enable the push-pull lead screw nut 104 to push a second baffle plate 103 until the second baffle plate 103 is abutted against a valve core sleeve of the first valve body; then the bolt connecting the first valve body and the second valve body is disassembled, and the second baffle plate 103 slowly slides towards the direction of the downstream flange by reversely rotating the push-pull screw nut 104, so that the elastic force of the elastic component in the valve core is gradually and slowly released. When the pressure regulating valve needs to be installed, the push-pull lead screw nut 104 is rotated in the forward direction, so that the push-pull lead screw nut 104 extrudes the second baffle 103 to slide until the first valve body and the second valve body are combined and fixed by connecting an upper bolt.

Under the condition of off-line maintenance, when the pressure regulating valve needs to be disassembled, the second baffle plate 103 and the push-pull lead screw nut 104 are firstly taken down, the second end of the push-pull lead screw 101 penetrates through the middle of the pressure regulating valve, the first baffle plate 102 is abutted against the outside of the second valve body, and the second end of the push-pull lead screw 101 extends out of the outside of a valve core sleeve of the first valve body; then, a second baffle 103 is installed on the second end, a push-pull lead screw nut 104 is installed (the push-pull lead screw nut 104 is arranged on the outer side of the second baffle 103), and the push-pull lead screw nut 104 is rotated reversely to push the second baffle 103 to be pushed by the push-pull lead screw nut 104 until the second baffle 103 abuts against a valve core sleeve of the first valve body; then the bolt connecting the first valve body and the second valve body is removed, and then the push-pull lead screw nut 104 is rotated in the positive direction, so that the second baffle plate 103 slowly slides to the outer side of the push-pull lead screw 101, and the elastic force of the elastic component in the valve core is gradually and slowly released. When the pressure regulating valve needs to be installed, the push-pull lead screw nut 104 is rotated reversely, so that the push-pull lead screw nut 104 extrudes the second baffle 103 to slide until the first valve body and the second valve body are combined and fixed by the upper bolt.

Therefore, the valve core push-pull device 100 can effectively control the elastic force of the spring assembly in the valve core in the process of dismounting the pressure regulating valve, avoid the damage of other accessories in the valve body caused by the rapid elastic deformation of the spring assembly and ensure the personal safety of operators.

The pressure regulating valve maintenance tool provided by the embodiment of the utility model can control the elastic force of the spring component in the valve core by arranging the valve core push-pull device 100 in the process of dismounting the pressure regulating valve, thereby avoiding the damage of other accessories in the valve body caused by the rapid elastic deformation of the spring component; the valve core push-pull device 100 can be used for online maintenance of the pressure regulating valve and offline maintenance of the pressure regulating valve, can effectively shorten the maintenance operation time, reduce the labor intensity, improve the working efficiency, ensure the installation quality and simultaneously ensure the personal safety of operators in the operation process.

In addition, the valve core push-pull device 100 can simulate the opening and closing of a valve and check the installation condition and the valve position condition of the valve position indicator.

In the pressure regulating valve maintenance tool described above, the first barrier 102 is fixed to the push-pull screw 101 to provide support required for pushing and pulling, while facilitating the push-pull screw nut 104 to rotationally advance the second barrier 103. Illustratively, the first baffle 102 may be welded to the first end of the push-pull lead screw 101.

Further, in order to adapt to the distance between the first valve body and the downstream flange, as shown in fig. 1, the first baffle plate 102 may also be provided with a threaded through hole, and the first baffle plate 102 is connected to the first end of the push-pull screw rod 101 through the threaded through hole; and the number of push-pull lead screw nuts 104 is two.

One of the push-pull lead screw nuts 104 is used for abutting against the second baffle 103, and the other push-pull lead screw nut 104 is used for fixing the first baffle 102. In use, the first retainer 102 may be secured in a desired position by rotating the push-pull lead screw nut 104 in a forward or reverse direction, and then the plug push-pull 100 may be placed between the first valve body and the downstream flange.

When the push-pull lead screw nut 104 is rotated, the rotation can be performed by a wrench. In view of convenience of rotation, as shown in fig. 1, the valve core push-pull device 100 may further include: a rotating handle 105; a rotating handle 105 is provided on the push-pull lead screw nut 104.

Further, 2 rotation handles 105 may be provided on each of the push-pull lead screw nuts 104, and the two rotation handles 105 are symmetrically provided on both sides of the push-pull lead screw nut 104. When the push-pull lead screw nut 104 is used, the two rotating handles 105 can facilitate the force application of two hands of an operator, so that the push-pull lead screw nut 104 can be rotated.

In the pressure regulating valve maintenance tool described above, the second stopper 103 may have a through hole, and the second stopper 103 may be fitted to the second end of the push-pull screw 101 through the through hole. The diameter of the through hole is smaller than the outer diameter of the push-pull lead screw nut 104, so that the push-pull lead screw nut 104 is prevented from passing through the through hole and being unable to abut against the second baffle 103.

In the pressure regulating valve maintenance tool described above, the first baffle 102 is used to abut against a flange (a flange of a downstream assembly or a flange of a second valve body), and the second baffle 103 is used to abut against a spool sleeve of the first valve body. In consideration of the fact that the elastic pressure of the spring assembly in the valve body is relatively large, in order to avoid abrasion of the second baffle 103 to the valve core sleeve, the second baffle 103 can be made of plastic, and the first baffle 102 can be made of steel or plastic.

Further, in order to protect the valve core sleeve and to make the connection between the second baffle 103 and the valve core sleeve more stable, the second baffle 103 may further include a plate body 1031 and a flange 1032; the flange 1032 forms a catch on the plate 1031, and the catch faces the second end of the push-pull screw 101.

During application, the clamping groove is connected with the valve core sleeve, and the flange 1032 is attached to the outer wall of the valve core sleeve. The valve core sleeve is fixed in the clamping groove, so that the valve core sleeve can be prevented from moving back and forth, and abrasion is avoided.

When dismantling the air-vent valve (especially online maintenance), because the valve body is heavier, the first valve body and the second valve body that part can descend certain height respectively under the effect of gravity, this causes the upper and lower dislocation of first valve body and second valve body easily, and is unfavorable for the subsequent installation of valve body, and the valve body after connecting sinks also does not favor with being connected of low reaches flange. Based on this, as shown in fig. 2, the pressure regulating valve maintenance tool may further include a valve body bracket 200; the valve body bracket 200 includes: a tray 201; a base plate 202; and a lifting mechanism 203 connected between the tray 201 and the base plate 202.

During the use, before dismantling first valve body and second valve body, place valve body bracket 200 in the lower extreme of first valve body and second valve body, bottom plate 202 is located just on the ground of valve body or on other planes, adjusts elevating system 203, makes tray 201 from below butt first valve body and second valve body. Then the fixing bolt between the first valve body and the second valve body is disassembled.

Through setting up valve body bracket 200, can support the valve body at the in-process of dismouting air-vent valve, guarantee first valve body and second valve body separate under the condition of upper and lower not dislocation and go up to the installation of valve body is convenient for. And when the valve body is connected with the downstream flange, the height of the pressure regulating valve can be adjusted to align with the downstream flange, so that the connection between the downstream flange and the valve body is facilitated.

The lifting mechanism 203 can raise or lower itself, thereby lifting or lowering the tray 201. The embodiment of the utility model provides a do not restrict elevating system 203's structure, can realize above-mentioned function can.

For example, as shown in fig. 2, the lifting mechanism 203 may include a lifting screw 2031, a lifting screw nut 2032, and a limit cylinder 2033; the bottom of the limiting barrel 2033 is fixed on the bottom plate 202, the first end of the lifting screw 2031 is fixedly connected with the tray 201, the second end of the lifting screw 2031 extends into the limiting barrel 2033, the lifting screw nut 2032 is arranged on the lifting screw 2031, and the lifting screw nut 2032 is located at the top of the limiting barrel 2033.

The bottom of the limiting cylinder 2033 can be welded on the bottom plate 202, and the first end of the lifting screw 2031 can be welded on the connecting tray 201. The outer diameter of the lifting lead screw nut 2032 is larger than the outer diameter of the limiting cylinder 2033.

During the use, through rotatory lift screw nut 2032, can make lift screw 2031 screw out or screw in spacing section of thick bamboo 2033 to make tray 201 rise or fall, and then the height of the valve body of adjustment on tray 201, with the smooth butt joint of low reaches flange.

In order to ensure that the valve body bracket 200 is stably supported, two lifting mechanisms 203 can be arranged between the tray 201 and the bottom plate 202, and as shown in fig. 2, the two lifting mechanisms 203 are symmetrically arranged between the tray 201 and the bottom plate 202.

When the first valve body and the second valve body are connected, if the bolt holes on the valve bodies are not aligned, the first valve body or the second valve body can be rotated on the tray 201 to align the bolt holes on the first valve body and the second valve body, so that the bolts can be screwed in and fixed conveniently.

Further, in order to facilitate the rotational adjustment of the valve body on the tray 201, as shown in fig. 2 and 3, the tray 201 may further include a supporting plate 2011 and two round pipes 2012;

two round tubes 2012 are provided on opposite ends of the retainer plate 2011.

When the valve is used, the axis of the round pipe 2012 is parallel to the axis of the valve body, and when the valve body needs to rotate, the valve body can rotate on the round pipe 2012. The round pipe 2012 is arranged to reduce the rotation friction between the valve body and the tray 201, so as to facilitate the adjustment of the bolt hole of the valve body and align the bolt hole.

Through field application, adopt the embodiment of the utility model provides an air-vent valve repair tools, maintenance time is three four hours less than before, and installation quality has also had the assurance, has not appeared the accessory and has damaged, installs the condition of doing over again that does not arrive, and has eliminated the potential safety hazard of bruising, crushing wound.

The above description is only for facilitating the understanding of the technical solutions of the present invention by those skilled in the art, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure regulating valve maintenance tool, characterized in that it comprises a spool push-pull (100);

the spool push-pull (100) includes: a push-pull lead screw (101); a first baffle plate (102) fixedly connected to a first end of the push-pull lead screw (101); the second baffle (103) is sleeved at the second end of the push-pull lead screw (101); and a push-pull lead screw nut (104) disposed on the push-pull lead screw (101) and located between the first baffle (102) and the second baffle (103).

2. A pressure regulating valve service tool according to claim 1, wherein said first blind (102) is welded to a first end of said push-pull lead screw (101).

3. The pressure regulating valve service tool according to claim 1, wherein said first blind (102) has a threaded through hole through which said first blind (102) is connected to a first end of said push-pull lead screw (101);

the number of the push-pull lead screw nuts (104) is two.

4. The pressure regulating valve service tool of claim 1, wherein said spool push-pull (100) further comprises: a rotating handle (105);

the rotating handle (105) is arranged on the push-pull lead screw nut (104).

5. The pressure regulating valve maintenance tool according to claim 1, characterized in that said second baffle plate (103) has a through hole, and said second baffle plate (103) is fitted over a second end of said push-pull lead screw (101) through said through hole.

6. The pressure regulating valve service tool according to claim 5, wherein said second flap (103) comprises a plate body (1031) and a flange (1032);

the flange (1032) forms a catch on the plate body (1031) and the catch faces the second end of the push-pull lead screw (101).

7. The pressure regulating valve service tool of claim 1, further comprising a valve body bracket (200);

the valve body bracket (200) includes: a tray (201); a base plate (202); and a lifting mechanism (203) connected between the tray (201) and the bottom plate (202).

8. The pressure regulating valve service tool according to claim 7, wherein the lifting mechanism (203) comprises a lifting screw (2031), a lifting screw nut (2032) and a limiting cylinder (2033);

the bottom of the limiting cylinder (2033) is fixed on the bottom plate (202), the first end of the lifting screw (2031) is fixedly connected with the tray (201), the second end of the lifting screw (2031) extends into the limiting cylinder (2033), the lifting screw nut (2032) is arranged on the lifting screw (2031), and the lifting screw nut (2032) is located at the top of the limiting cylinder (2033).

9. A pressure regulating valve service tool according to claim 8, characterized in that the first end of the lifting screw (2031) is welded to the tray (201).

10. The pressure regulating valve service tool of claim 7, wherein said tray (201) comprises a pallet (2011) and two round tubes (2012);

the two round pipes (2012) are respectively arranged at two opposite ends of the supporting plate (2011).