CN210685981U

CN210685981U - Round wing shape mine pipeline expansion device

Info

Publication number: CN210685981U
Application number: CN201920580681.1U
Authority: CN
Inventors: 谢炳记
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2020-06-05
Anticipated expiration: 2029-04-18

Abstract

The utility model discloses a make the circular wing shape mine pipeline expansion bend that the adaptation wall of a well of various pipeline developments in the mine pit shaft changes. The safety protection device is arranged for solving the problem that a pipeline cannot normally run due to the superposition influence of various adverse factors on a mine vertical shaft. The structure of the device mainly comprises an end pipe, a middle pipe, a specially-made corrugated expansion joint, a seamless armor ring, a stiffening plate, a ring plate, a circular connecting disc, a double-end bolt connecting rod, a movable guide pipe, a fixed sleeve and a guide cylinder. The special corrugated expansion joint, the end pipe and the middle pipe are coaxially welded into a whole to form a pipeline expansion main body and a medium channel. The seamless armor ring and the specially-made corrugated expansion joint are integrally formed by a hydraulic hoop, the negative wave of the specially-made corrugated expansion joint is completely attached to the positive wave of the seamless armor ring, and the mechanical bearing strength and durability of the specially-made corrugated expansion joint are enhanced. The whole structure is transversely and longitudinally, coaxially and symmetrically distributed.

Description

Round wing shape mine pipeline expansion device

Technical Field

The utility model discloses a make the flexible pipeline of the interior adaptation environmental change of pipeline developments of mine pit shaft, especially in the contractible position of the mine wall of a well or easily produce the broken position that sinks of the wall of a well or the round wing shape mine pipeline expansion bend that the position set up that has broken at stress concentration.

Background

In a mine shaft constructed for developing mine resources, shaft equipment facilities such as a water supply pipe, a drainage pipe, a grouting pipe, a compressed air pipe, a gas pipe, a refrigeration pipe, a nitrogen injection pipe and the like are often arranged as required. However, due to the influence of different environmental temperatures in different areas, the influence of different medium temperatures in different pipelines, the melting and sinking influence of unfreezing frozen well walls of vertical shaft wellbores and the influence of thousands of different geological conditions in each area, certain harm is brought to the operation of the mine pipelines.

The superposition effect of the adverse factors forces the pipeline to be gradually influenced upwards and downwards at certain uncertain parts until the pipeline is obviously bent, distorted and deformed, and even broken pipe bursting and other damage accidents occur. In the past, people all adopt to stop production, passively replace and maintain the pipe beam and the pipeline, and ignore how to make the pipeline dynamically adapt to the environment and the change of a well wall, so that safe and reliable operation is ensured.

Disclosure of Invention

The utility model aims at providing a position can be contracted in the vertical shaft wall of a well, easily produce to destroy the position of sinking or have destroyed the position of sinking and adopt the round wing shape mine pipeline expansion bend of being convenient for measure observation and reliably protecting the safe operation of pipeline in stress concentration.

The purpose of the utility model is realized like this:

the circular wing-shaped mine pipeline expansion piece is composed of an end pipe, a middle pipe, a special corrugated expansion joint, a stiffening plate, a circular connecting disc, a double-headed bolt connecting rod, a fastening nut, a locking flat nut, a gasket, a movable guide pipe, a fixed sleeve, a guide cylinder, a limiting block, a rib plate, a ring plate and a seamless armor ring hooped on the special corrugated expansion joint, wherein the special corrugated expansion joint, the end pipe, the middle pipe and the circular connecting disc are longitudinally and coaxially welded into a whole, so that a medium channel is formed by a pipeline expansion main body and the pipeline, and the pipeline is limited and supported by six pairs of uniformly distributed guide connecting rod mechanisms. The special corrugated expansion joint and the seamless armor ring are integrally formed by a hydraulic hoop, the negative wave of the special corrugated expansion joint is attached to the positive wave of the seamless armor ring by hundreds of percent, and the mechanical bearing strength and the durability of the special corrugated expansion joint are enhanced. When the pipeline on the upper part of the end pipe is pressed and sunk, the two groups of specially-made corrugated expansion joints are compressed under the protection of the hoop joints of the seamless armor ring, at the moment, six guide link mechanisms which are jointly composed of the movable guide pipe, the fixed sleeve, the stud bolt connecting rod, the fastening nut, the locking flat nut and the gasket act in a combined mode under the support of the middle stiffening plate and the circular connecting discs at the two ends as fixed fulcrums, vertical guide is achieved in the longitudinal direction, and bending control and distortion prevention effects are achieved in the transverse direction of 360 degrees. Meanwhile, when the sinking compression amount of the pipeline reaches the limit, namely H and 2H are equal to zero, the specially-made corrugated expansion joint is reliably protected due to the common limiting and supporting effect of the six guide link mechanisms.

The utility model discloses a show characteristics and lie in:

1. according to the actual conditions of mines, the expansion and contraction quantity of pipelines with different functions can be calculated and set according to situations, and is generally set to be 100-200 mm.

2. Two groups of specially-made corrugated joints, two sections of end pipes, two circular connecting discs and a middle pipe in the middle are longitudinally and coaxially welded into a whole, a set of seamless armor ring is hydraulically hooped on each group of specially-made corrugated expansion joints, the negative waves of the specially-made corrugated expansion joints are completely attached to the positive waves of the seamless armor ring, and the specially-made corrugated expansion joints are limited and supported by six guide connecting rod mechanisms which play a role in guiding and fixing, so that the special-made corrugated expansion joints are high in strength, good in integrity and strong in stability.

3. The whole structure is transversely and longitudinally symmetrically and uniformly distributed in a coaxial and symmetrical mode, the field installation is convenient, and the direction limitation is avoided.

4. Through the relative motion of the movable guide pipe and the fixed sleeve, namely the change of the H size, the variation of the pipeline or the well wall can be dynamically reflected, and the H size is convenient for observation and measurement.

5. When the sinking compression amount of the pipeline reaches the limit, namely H and 2H of the six pairs of guide link mechanisms are equal to zero, the specially-made corrugated telescopic joint is reliably protected due to the common limiting and supporting effect of the six pairs of guide link mechanisms, and at the moment, people are reminded to take corresponding precautionary measures on the pipeline or the well wall.

Drawings

Fig. 1 is an assembly diagram of the circular wing-shaped mine pipeline expansion piece of the utility model.

Fig. 2 is a top view of the wing-shaped mine pipeline retractor of the present invention.

Fig. 3 is a sectional view of the wing-shaped mine pipeline retractor of the present invention.

Detailed Description

The basic structure and the assembly operation form of the circular wing-shaped mine pipeline retractor can be seen from fig. 1, 2 and 3.

The circular wing-shaped mine pipeline expansion piece adopts a coaxial symmetrical uniform distribution mode. The upper end pipe 1 and the lower end pipe 1 are respectively longitudinally and coaxially welded with two groups of specially-made corrugated expansion joints 5 and a middle pipe 7 in the middle into a whole, and are limited and supported by six pairs of uniformly distributed guide link mechanisms together, and the end parts of the end pipes 1 are assembled and welded with a pipeline into a whole, so that a medium channel is formed by the pipeline expansion main body and the pipeline.

In order to ensure that the two groups of specially-made corrugated expansion joints 5 can bear normal medium pressure and possible additional destructive pressure in a pipeline, a set of seamless armor ring 6 is hydraulically hooped on each group of specially-made corrugated expansion joints 5, the negative wave of each group of specially-made corrugated expansion joints 5 is attached to the positive wave of each seamless armor ring 6 by one hundred percent, and the stop blocks 4 are uniformly distributed at two ends of each group of specially-made corrugated expansion joints 5 and two ends of each seamless armor ring 6

The upper circular connecting disc 3 and the lower circular connecting disc 3 are respectively welded with the two sides of the end pipe 1 into a whole, and the stiffening plates 8 are respectively and symmetrically assembled and welded with the middle pipe 7 and the six fixed sleeves 9 into a whole, so that each pair of guide connecting rod mechanisms form three longitudinal fixed supporting points. In order to enhance the bracing strength of the circular connecting discs 3, rib plates 2 are distributed and welded at the outer ends of the joint parts of the two sections of end pipes 1 and the two circular connecting discs 3, and are further limited and reinforced by ring plates 17.

Six guide link mechanisms are formed by a fixed sleeve 9, a movable guide pipe 10 with a countersunk head welded on a circular connecting disc 3, a stud connecting rod 11, a fastening nut 13, a flat locking nut 14 and a washer 16, and the six guide link mechanisms vertically guide, transversely control bending and prevent distortion and ensure the normal operation of the circular wing-shaped mine pipeline expansion piece. Meanwhile, when the sinking compression amount of the pipeline reaches the limit, namely H and 2H are equal to zero, the purpose-made corrugated expansion joint is reliably protected due to the common limiting and supporting effect of the six guide connecting rod mechanisms.

In order to avoid and reduce the strong washing of the pipeline by the medium and sundries in the medium and protect the service life of the two groups of specially-made corrugated expansion joints 5, one side of the end pipe 1 and one side of the middle pipe 7 at one end in the medium inflow direction are respectively welded with the same side of the two guide cylinders 12, and the other side of the two guide cylinders 12, namely the medium outflow side, does not need to be welded to form a free movable end.

Each welding of the circular wing shaped mine pipe retractor is achieved by a continuous fillet weld 15.

In addition, Φ in fig. 1, 2, and 3 is a pipe outside diameter dimension; in fig. 1, H is the maximum expansion amount of each group of the special corrugated expansion joints 5, 2H is the maximum expansion amount of two groups of the special corrugated expansion joints 5, L is the maximum length size of the circular wing-shaped mine pipeline expansion piece, and L1 is the reserved size of the connection and installation of the end pipe and the pipeline; in fig. 2, Φ 2 is the maximum external dimension of the circular connecting disc 3, and Φ 1 is the uniform central line dimension of the six guide link mechanisms.

Claims

1. A circular wing-shaped mine pipeline expansion piece is characterized in that: the pipeline expansion joint consists of an end pipe, a middle pipe, a specially-made corrugated expansion joint, a stiffening plate, a circular connecting disc, a stud connecting rod, a fastening nut, a locking flat nut, a gasket, a movable guide pipe, a fixed sleeve, a guide cylinder, a limiting block, a rib plate, a ring plate and a seamless armor ring hooped on the specially-made corrugated expansion joint, wherein the specially-made corrugated expansion joint, the end pipe, the middle pipe and the circular connecting disc are longitudinally and coaxially welded into a whole to form a pipeline expansion main body and a medium channel, the pipeline expansion main body and the medium channel are jointly limited and supported by six guide connecting rod mechanisms, and the whole structure is transversely, longitudinally, coaxially.

2. The circular-wing mine pipe retractor of claim 1, wherein: the specially-made corrugated expansion joint and the seamless armor ring are formed through one-time integrated hydraulic hooping, the negative wave of the specially-made corrugated expansion joint is completely attached to the positive wave of the stepless armor ring, and the mechanical bearing strength and durability of the specially-made corrugated expansion joint are enhanced.