CN201972710U

CN201972710U - Reinforced mine pipeline telescopic device

Info

Publication number: CN201972710U
Application number: CN201020271380XU
Authority: CN
Inventors: 谢炳记
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-18
Filing date: 2010-07-18
Publication date: 2011-09-14
Anticipated expiration: 2020-07-18

Abstract

The utility model discloses a reinforced mine pipeline telescopic device making a mine shaft pipeline dynamically adapt to change of a borehole wall. The telescopic device is a safe protection facility disposed for solving the problem that a mine vertical shaft, due to various factors and influences, makes a borehole wall rupture and sink, and further making a pipeline be damaged. The structure of the telescopic device is mainly formed by an end pipe, a middle pipe, a specially-produced corrugated telescopic joint, a stepless armored ring, a reinforced plate, a coupling disc, a stud bolt connecting rod, a movable guide pipe, and a fixed bushing. The specially-produced corrugated telescopic joint, the end pipe, and the middle pipe are welded together to form a pipeline telescopic main body and a medium channel. The stepless armored ring and the specially-produced corrugated telescopic joint are formed into one via hoop, and mechanical strength of the specially-produced corrugated telescopic joint is reinforced. A guide linkage mechanism formed by the movable guide pipe, the fixed bushing, and the stud bolt connecting rod, under fixed support of the reinforced plate and the coupling disc, takes effect of vertical guide in a longitudinal direction, and control of bending and distortion deformation in a transverse direction, when pipeline sinkage reaches to a limit, the specially-produced corrugated telescopic joint is protected.

Description

Reinforced mine pipeline expansion bend

Technical field

But the utility model discloses a kind of draw road that the pipeline dynamically adapting borehole wall in the pitshaft is changed, especially the reinforced mine pipeline expansion bend that can contract the position or concentrate the easy generation shaft wall fracture sinking position or the sinking position of having broken to be provided with at stress at the mine borehole wall.

Background technology

Pitshaft for the resource that develops a mine is built often will be provided with shaft equipment facilities such as supply channel, discharge pipe line, grouting pipeline, air line as required.But owing to have many vertical freezing shaft walls and drilling shaft lining generation break accident today from crossing to go to, and bring corresponding destruction to shaft equipment, brought certain harm for the operation of mine pipeline.Entangle its shaft wall fracture main cause: the one, show native aquifer and water-bearing stratum and produce consolidation settlement because of hydrophobic; The 2nd, the soil body and rock mass constraint borehole wall rising-heat contracting-cold; The 3rd, freezing shaft wall is at the back thaw collapse that thaws; The 4th, surface water is to underground infiltration; The 5th, promote the influence of impact load to the borehole wall; The 6th, the force majeure that the variation of geology and earthquake produce is to the influence of the borehole wall.Above a variety of causes all produces the sinking that covers the soil body and loose rock mass to some extent, the soil body and loose rock mass are in the sinking process, borehole wall appearance is produced downward active force---vertical additional force, when this power arrives certain value, cause the borehole wall at basement rock and shock ply interface position or the sinking of breaking of other weak part.According to the interrelated data analysis, this vertical additional force is subjected to the objective factor restriction unavoidable, different and shaft wall structure design and job practices, construction quality of geology, Di Kuang, landforms and amblent air temperature different separately just, additional force size and also different to the degree of pit shaft borehole wall infringement.

Because sinkings of breaking of the borehole wall drives the pipe beam of taking root on the borehole wall and together sink, force that pipeline progressively makes progress, downward two-way influence,, torsional deformation crooked, even the appearance malicious events such as booster that rupture until obvious appearances.In the past, people taked to stop to produce, and pipe beam and pipeline are carried out passive repair and replacement, and ignored the variation that how to make pipeline adapt to the borehole wall dynamically, thus the problem of assurance safe and reliable operation.

Summary of the invention

The purpose of this utility model just provides a kind of at the vertical borehole wall position of can contracting, and concentrates easily to produce at stress and destroys the sinking position or destroyed the sinking position and adopted to be convenient to measure and observe and the reinforced mine pipeline expansion bend of reliably protecting pipeline safe operation.

Be achieved in that order of the present utility model

This reinforced mine pipeline expansion bend is made up of end pipe, middle pipe, special bellow-type expansion joint, stiffener, tie-plate, stud connecting rod, clamp nut, locking nut, movable conduit, fixed sleeving, guide shell, limited block, gusset and the electrodeless armouring ring of hoop knot on special bellow-type expansion joint respectively, special bellow-type expansion joint and end pipe, middle pipe, the vertically middle centering weldering of tie-plate are connected as a single entity, and by the spacing support of fourth officer guide link mechanism, the symmetrical up and down contraposition of overall structure is arranged.Special bellow-type expansion joint and electrodeless armouring ring one hoop are formed shape, have strengthened the mechanical strength of special bellow-type expansion joint.When the pipeline on end pipe top is depressed when heavy; two groups of special bellow-type expansion joints are compressed under the hoop knot protection of electrodeless armouring ring simultaneously; at this moment; the guide link mechanism that fourth officer is made of jointly movable conduit, fixed sleeving, stud connecting rod and clamp nut, locking nut middle part strength plate and two ends tie-plate as the support of fixed support under teamwork; vertically play vertically-guided, laterally playing the effect crooked, torsional deformation of controlling.Simultaneously, when pipeline sinking decrement reached capacity, when promptly H and 2H equalled zero, this moment was because the spacing supporting role of fourth officer guide link mechanism, reliable protection special bellow-type expansion joint.Distinguishing feature of the present utility model is:

1. according to the actual state of mine, the stroke of pipeline can be set according to feelings.

The middle pipe at two groups of special bellow-type expansion joints, two joint end pipes, two tie-plates and middle part vertically in centering weld and be connected as a single entity, the electrodeless armouring ring of hoop knot one cover on every group of special bellow-type expansion joint, play the spacing support of guide link mechanism of guide securement effect by fourth officer, the intensity height, good integrity, stability is strong.

3. the symmetrical up and down contraposition of overall structure is arranged, and is on-the-spot easy for installation, not limited by the orientation.

4. the relative motion by movable conduit and fixed sleeving, i.e. the variation of H size can reflect the deflection of the pipeline or the borehole wall dynamically.The H size is convenient to observe and is measured.

5. when pipeline sinking decrement reached capacity, when promptly the H of fourth officer guide link mechanism and 2H equalled zero, because the spacing supporting role of fourth officer guide link mechanism, special bellow-type expansion joint had obtained reliably protecting.This moment, reminds people will be taked the corresponding precautionary measures to the pipeline or the borehole wall.

Description of drawings

Fig. 1 is the general assembly drawing of the reinforced mine pipeline of the utility model expansion bend.

Fig. 2 is the vertical view of the reinforced mine pipeline of the utility model expansion bend.

Fig. 3 is the A-A sectional drawing of the reinforced mine pipeline of the utility model expansion bend.

The specific embodiment

By Fig. 1, Fig. 2, Fig. 3 as can be seen this reinforced mine pipeline expansion bend basic structure and the assembling operation form.

This reinforced mine pipeline expansion bend adopts symmetrical up and down contraposition to arrange.Upper and lower side pipe 1 is connected as a single entity with the middle pipe 7 vertically middle centering welderings of two groups of special bellow-type expansion joints 5 with the middle part respectively, and the end of end pipe 1 is integral with pipeline groove assembly welding again, constitutes flexible main body of pipeline and pipeline medium channel thus.

For guaranteeing that two groups of special bellow-type expansion joints 5 can sustain normal pressure medium and the extra destructive pressure that may occur in the pipeline; the electrodeless armouring ring 6 of hoop knot one cover on every group of special bellow-type expansion joint 5, and be distributed on special bellow-type expansion joint 5 two ends by limited block 4 and give position limitation protection.

Up and down two tie-plates 3 respectively with end pipe 1 two-sided being welded as a whole, eight stiffeners 8 are one with middle pipe 7 and four fixed sleeving 9 symmetrical assembly weldings respectively, every thus secondary guide link mechanism has just formed three fixed supports longitudinally.For strengthening the stay bolt intensity of tie-plate 3, welding gusset 2 distributes in two joint end pipe outer ends, 1 and two tie-plate 3 joint portion.

Join clamp nut 13, the locking nut 14 common fourth officer guide link mechanisms that form by movable conduit 10 and stud connecting rod 11 that fixed sleeving 9, countersunk head are welded on the tie-plate 3, it has vertically played vertically-guided, laterally played and controlled effect crooked, torsional deformation, guaranteed the operate as normal of reinforced mine pipeline expansion bend.Simultaneously, when pipeline sinking decrement reached capacity, when promptly H and 2H equalled zero, this moment was because the spacing supporting role of fourth officer guide link mechanism, again reliable protection special bellow-type expansion joint.

For avoiding and reducing pipeline and wash away because of the brute force that is subjected to foreign material in medium and the medium; in order to the application life of two groups of special bellow-type expansion joints 5 of protection; weld mutually with the same side of two guide shells 12 respectively in a side of the end pipe 1 of MEDIA FLOW Inbound one end and a side of middle pipe 7, the opposite side of two guide shells 12 is that the medium outflow side does not then need welding.

Each welding position of reinforced mine pipeline expansion bend is all realized by continuous angle welding line 15.

In addition, the Φ among Fig. 1, Fig. 2, Fig. 3 is the pipeline outside dimension; H among Fig. 1 is the maximum compressibility of every group of special bellow-type expansion joint 5, and 2H is the maximal dilation amount of two groups of special bellow-type expansion joints 5; A among Fig. 2 is the maximum appearance and size of tie-plate 3.

Claims

1. reinforced mine pipeline expansion bend, it is characterized in that: it is made up of end pipe, middle pipe, special bellow-type expansion joint, stiffener, tie-plate, stud connecting rod, clamp nut, locking nut, movable conduit, fixed sleeving, guide shell, limited block, gusset and the electrodeless armouring ring of hoop knot on special bellow-type expansion joint respectively, special bellow-type expansion joint and end pipe, middle pipe, the vertically middle centering weldering of tie-plate are connected as a single entity, and by the spacing support of fourth officer guide link mechanism, the symmetrical up and down contraposition of overall structure is arranged.

2. according to claims 1 described reinforced mine pipeline expansion bend, it is characterized in that: special bellow-type expansion joint and electrodeless armouring ring one hoop are formed shape, have strengthened the mechanical strength of special bellow-type expansion joint.