CN219345878U - Online plugging device for pipeline elbow - Google Patents

Abstract

The utility model relates to the technical field of online plugging, which aims at solving the problems that a direct plugging and pressing mode is not suitable for easily leaking points of a pipeline elbow; the utility model provides an online plugging device for a pipeline elbow, which comprises a pipeline elbow, a pair of plugging components, an outer cavity elbow and a liquid pumping component, wherein the plugging components are arranged on the pipeline elbow; the outer cavity elbow comprises a first portion and a second portion; the first portion is axisymmetric with the second portion; the first part and the second part are arranged on the outer wall of the pipeline elbow in a surrounding mode; a liquid collecting tank is concavely arranged on the wall of the second part, which is close to the bottom of the pipeline elbow; the liquid suction assembly is communicated with the liquid collecting groove; the pair of plugging components are respectively arranged at two openings of the outer cavity elbow, which are close to the pipeline elbow. The outer cavity elbow is sleeved outside the pipeline elbow, two ends of the outer cavity elbow are plugged by a pair of plugging components, and the leakage part of the pipeline elbow is wrapped and plugged under pressure on line.

Description

Online plugging device for pipeline elbow

Technical Field

The utility model relates to the technical field of online plugging, in particular to an online plugging device for a pipeline elbow.

Background

In petrochemical enterprises, the production characteristics of chemical devices are mostly high-temperature, high-pressure and highly corrosive media (such as sulfuric acid), the continuity of the devices is strong, the production relevance of the devices and the devices is strong, the devices are often stopped due to faults caused by equipment and pipeline leakage, and the production and operation of the enterprises are adversely affected;

therefore, the method is particularly important for on-line pressure plugging of equipment and pipeline leakage in the device; as in the process pipeline, the elbow part is extremely easy to leak due to erosion and abrasion, the wall thickness of the part near the leakage point is often seriously reduced, if a direct leakage blocking mode is adopted, the leakage blocking range is limited, a leakage blocking component is easy to be corroded by liquid in a pipe, and the leakage blocking component is easy to drop in production in the long term, so that the leakage blocking is invalid, and potential safety hazards exist, and the leakage point is directly blocked by adopting a soft sealing pressing block as disclosed in CN 101900238A.

Based on the above description, there is an urgent need for an online plugging device for a pipe elbow that facilitates long-term plugging.

Disclosure of Invention

The utility model aims to provide an on-line plugging device for a pipeline elbow, which aims to solve the technical problem that a mode of directly plugging a leakage point is not suitable for plugging the easily-leaked point of the pipeline elbow for a long period.

The embodiment of the utility model is realized by the following technical scheme:

an on-line lost circulation device for a pipe elbow, comprising:

the pipeline elbow, the pair of plugging components, the outer cavity elbow and the liquid pumping component;

the outer cavity elbow comprises a first portion and a second portion;

the first portion is axisymmetric with the second portion;

the first part and the second part are arranged on the outer wall of the pipeline elbow in a surrounding mode;

a liquid collecting tank is concavely arranged on the wall of the second part, which is close to the bottom of the pipeline elbow;

the liquid suction assembly is communicated with the liquid collecting groove;

the pair of plugging components are respectively arranged at two openings of the outer cavity elbow, which are close to the pipeline elbow.

Preferably, the plugging assembly comprises a stuffing box, stuffing and a stuffing gland;

the packing function is arranged at the opening of the outer cavity elbow in a surrounding way;

the filler is filled between the filler box and the pipeline elbow;

one end of the packing gland is detachably connected with the packing box;

the other end of the packing gland is propped against the packing.

Preferably, the stuffing box comprises a flange end cover, and the flange end cover is in threaded connection with the end cover of the stuffing gland.

Preferably, the filler is a corrosion resistant flexible filler.

Preferably, the first portion is welded to the second portion.

Preferably, a pipe joint is penetrated at the bottom of the liquid collecting tank; the pipe joint is communicated with the liquid pumping assembly.

Preferably, the liquid extraction component comprises a liquid extraction pipe and a liquid extraction pump; one end of the liquid suction pipe is communicated with the pipe joint; the other end of the liquid suction pipe is communicated with the liquid suction pump.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

according to the utility model, the outer cavity elbow is sleeved outside the pipeline elbow, and the two ends of the outer cavity elbow are further plugged by the pair of plugging components, so that the leakage part of the pipeline elbow is wrapped and plugged under pressure on line; further, through the drainage component, liquid leaked in the inner cavity of the outer cavity elbow is conveniently and timely pumped out, and further leaked liquid is prevented from corroding the pipeline elbow and the outer cavity elbow, and long-period online plugging is further achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of the present utility model;

fig. 2 is a cross-sectional view of fig. 1.

Icon: the device comprises a 1-pipeline elbow, a 2-plugging component, a 21-stuffing box, a 211-flange end cover, a 22-stuffing, a 23-stuffing gland, a 3-outer cavity elbow, a 31-first part, a 32-second part, a 4-liquid drawing component, a 41-liquid drawing pipe, a 42-liquid drawing pump, a 5-liquid collecting tank and a 51-pipe joint.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1 and 2, the present utility model provides the following technical solutions: an on-line plugging device for a pipeline elbow is suitable for conveying corrosive pipe liquid.

Specifically, as shown in fig. 1 and 2, an on-line plugging device for a pipe elbow includes:

the pipeline elbow 1, the pair of plugging components 2, the outer cavity elbow 3 and the liquid pumping component 4;

the outer cavity elbow 3 is sleeved outside the pipeline elbow 1, two ports of the outer cavity elbow 3 are further plugged by a pair of plugging components 2, and therefore the leakage part of the pipeline elbow 1 is wrapped and plugged online under pressure; further, through the liquid pumping assembly 4, the liquid leaked from the inner cavity of the outer cavity elbow 3 to the pipeline elbow 1 is conveniently pumped out in time, so that the leaked liquid is prevented from corroding the pipeline elbow 1 and the outer cavity elbow 3, and long-period online plugging is realized.

The outer chamber elbow 3 comprises a first portion 31 and a second portion 32;

the first portion 31 is axisymmetric to the second portion 32;

the first portion 31 and the second portion 32 are arranged around the outer wall of the pipe elbow 1;

the pipe bend 1 is mounted in the sealed cavity by dividing the outer cavity bend 3 into the first portion 31 and the second portion 32, thereby facilitating the formation of a sealed cavity.

The wall of the second part 32, which is close to the bottom of the pipeline elbow 1, is concavely provided with a liquid collecting tank 5; the liquid suction assembly 4 is communicated with the liquid collecting tank 5;

through the liquid collecting groove 5, the leaked pipe liquid at the leakage part of the pipe elbow 1 is conveniently collected, and then the pipe liquid is conveniently extracted through the installation of the liquid extracting assembly 4.

The pair of plugging components 2 are respectively arranged at two openings of the outer cavity elbow 3, which are close to the pipeline elbow 1.

The two openings of the outer cavity elbow 3, which are close to the pipeline elbow 1, are conveniently plugged by the plugging assembly 2.

Specifically, as shown in fig. 1 and 2, the plugging assembly 2 includes a stuffing box 21, a stuffing 22, and a stuffing gland;

the stuffing box 21 is arranged on the opening of the outer cavity elbow 3 in a surrounding manner;

the packing 22 is filled between the packing box 21 and the pipe elbow 1;

one end of the packing gland 23 is detachably connected with the packing box 21;

the other end of the packing gland 23 presses against the packing 22.

The packing box 21 is welded with the opening part of the outer cavity elbow 3, so that the packing 22 is conveniently plugged between the packing box 21 and the pipeline elbow 1, the part of the pipeline elbow 1, which is easy to leak pipe liquid, is sealed, the packing 22 is further extruded by the packing gland 23, and the gas in the sealed inner cavity is discharged, so that the on-line pressurized plugging is realized.

Specifically, as shown in fig. 1 and 2, the stuffing box 21 includes a flange end cap 211, and the flange end cap 211 is screwed with an end cap of the stuffing gland 23.

The flange end cover 211 is in threaded connection with an end cover of the gland of the packing 22, so that the packing box 21 and the packing gland 23 are conveniently connected, and the packing gland 23 is further extruded by the packing gland 23 through tight force connection of the packing box 21 and the packing gland 23.

Specifically, as shown in fig. 1, the filler 22 is a corrosion-resistant flexible filler.

By adopting the corrosion-resistant flexible filler as the filler 22, the gas in the sealed inner cavity can be conveniently extruded and discharged, and the online pressure plugging is realized.

Specifically, as shown in fig. 2, the first portion 31 is welded with the second portion 32.

In this embodiment, the first portion 31 and the second portion 32 are sufficiently welded without leaving a gap therebetween when they are mounted.

Specifically, as shown in fig. 1 and 2, a pipe joint 51 is penetrated at the bottom of the liquid collecting tank 5; the pipe joint 51 is communicated with the liquid pumping assembly 4.

By using the adapter 51, it is further convenient to detachably communicate with the pump assembly 4.

Specifically, as shown in fig. 1 and 2, the liquid extraction assembly 4 includes a liquid extraction tube 41 and a liquid extraction pump 42; one end of the liquid suction pipe 41 is communicated with the pipe joint 51; the other end of the liquid extraction tube 41 is communicated with the liquid extraction pump 42.

The liquid suction pump 42 and the liquid suction pipe 41 are convenient for timely sucking and cleaning the pipe liquid in the liquid collecting tank 5, and the on-line pressure plugging of the pipeline elbow 1 is convenient for long-period realization.

In this embodiment, in order to further ensure the stability of the installed outer cavity elbow 3, steel bars may be welded to the outer wall of the outer cavity elbow 3 to serve as supporting legs or supporting frames.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. An on-line plugging device for a pipeline elbow, comprising a pipeline elbow (1) and a pair of plugging components (2), characterized in that: the device also comprises an outer cavity elbow (3) and a liquid pumping assembly (4);

the outer cavity elbow (3) comprises a first portion (31) and a second portion (32);

-said first portion (31) is axisymmetric to said second portion (32);

the first part (31) and the second part (32) are arranged on the outer wall of the pipeline elbow (1) in a surrounding mode;

a liquid collecting tank (5) is concavely arranged on the wall of the second part (32) close to the bottom of the pipeline elbow (1);

the liquid pumping assembly (4) is communicated with the liquid collecting groove (5);

the pair of plugging components (2) are respectively arranged at two openings of the outer cavity elbow (3) close to the pipeline elbow (1).

2. The on-line lost circulation device for a pipe elbow according to claim 1, wherein: the plugging assembly (2) comprises a stuffing box (21), stuffing (22) and a stuffing gland (23);

the stuffing box (21) is arranged at the opening of the outer cavity elbow (3) in a surrounding mode;

the filler (22) is filled between the filler box (21) and the pipeline elbow (1);

one end of the packing gland (23) is detachably connected with the packing box (21);

the other end of the packing gland (23) is pressed against the packing (22).

3. The on-line lost circulation device for a pipe elbow according to claim 2, wherein: the stuffing box (21) comprises a flange end cover (211), and the flange end cover (211) is in threaded connection with the end cover of the stuffing gland (23).

4. An on-line plugging device for a pipe elbow according to claim 2 or 3, wherein: the filler (22) is a corrosion resistant flexible filler.

5. The on-line lost circulation device for a pipe elbow according to claim 1, wherein: the first portion (31) is welded to the second portion (32).

6. The on-line lost circulation assembly for a pipe elbow according to claim 5, wherein: a pipe joint (51) is arranged at the bottom of the liquid collecting groove (5) in a penetrating way; the pipe joint (51) is communicated with the liquid pumping assembly (4).

7. The on-line lost circulation assembly for a pipe elbow according to claim 6, wherein: the liquid extraction assembly (4) comprises a liquid extraction pipe (41) and a liquid extraction pump (42); one end of the liquid suction pipe (41) is communicated with the pipe joint (51); the other end of the liquid suction pipe (41) is communicated with the liquid suction pump (42).

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