CN203348825U

CN203348825U - Non-excavating lining repairing and renovating device for pipeline

Info

Publication number: CN203348825U
Application number: CN 201320407267
Authority: CN
Inventors: 顾和根
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-10
Filing date: 2013-07-10
Publication date: 2013-12-18
Anticipated expiration: 2023-07-10

Abstract

The utility model provides a non-excavating lining repairing and renovating device for a pipeline. A non-excavating mode is adopted to repair and renovate a lining of a plastic pipeline arranged in an old pipeline (especially a buried old steel pipeline). The device comprises the plastic pipeline with the head in the shape of a reversed cone, an inner core contained in the plastic pipeline, a locking clamping sleeve arranged on the outer side of the head of the plastic pipeline, a locking bolt, a steel wire rope and a power machine used for drawing the steel wire rope through power. The inner core and the locking clamping sleeve act together to clamp the head of the plastic pipeline, the inner core is in threaded connection with the locking bolt, and two ends of the steel wire rope are connected with the locking bolt and the power machine.

Description

The non-excavation liner of pipeline is repaired refreshing apparatus

Technical field

The utility model relates to a kind of buried pipeline liner that is applicable to oil transportation, gas transmission, electric power, chemical industry, water supply and sewerage pipeline industry and repairs refreshing apparatus, relates in particular to the non-excavation liner of a kind of pipeline and repairs refreshing apparatus.

Background technique

The oil and gas pipes of China develops over 30 years rapidly, construction investment is very huge, just reach KM more than 30000 to 2012 older oil and gas pipelines, the whole nation has the city of logical gas pipeline to reach nearly 300, Beijing only, Tianjin, the gas pipeline in nine cities such as Shanghai just reaches more than 10000 kilometer, 344 the city supply water pipeline total lengths in the whole nation reach 100,000 KM, the annual expense of upgrading for old pipeline maintenance accounts for the 10-20% of newly-built pipeline, also having many pipeline operation 2-3 is corrosion failure, the floor drain accident happens occasionally, befouling environment, cause work safety accident, keep in repair once be difficult to, often build again a new pipeline and original pipeline is discarded, bring massive losses to national economy.

Therefore be necessary to adopt a kind of old pipe lining to repair refreshing apparatus, old pipeline rehabilitation renovation is adopted and do not excavate or few excavation, in the situation that do not affect road traffic, original waste and old pipeline is carried out to whole restoration updating.

The model utility content

The utility model is in order to solve above-mentioned deficiency of the prior art, provide the non-excavation liner of a kind of pipeline to repair refreshing apparatus, its mode by non-excavation realizes liner reparation renovation by plastic pipe is set in old pipeline (especially buried old steel pipeline), comprise a plastic pipe that head is in an inverted cone, an inner core be contained in plastic pipe, a tight pintle hook lock cover be placed in outside the plastic pipe head, a tight lock bolt, article one, wire rope and one are used for the dynamic power machine of power traction wire rope, the plastic pipe head is blocked in inner core and the acting in conjunction of tight pintle hook lock cover, inner core is connected with tight lock bolt thread, the two ends of wire rope are connected with dynamic power machine with tight lock bolt respectively.

Further, it is trapezoidal that core shape is, and the centre of inner core is provided with tapped hole, and the surface of inner core is provided with and is beneficial to the skid-resistant lines of tight lock.

Further, tight pintle hook lock cover be provided with the tapped hole same diameter of inner core, be convenient to tightly lock the circular hole that bolt inserts.

Wherein, plastic pipe is made by high-density polyethylene plastics or acid thermoplastic materials.

Further, the non-excavation liner of pipeline is repaired refreshing apparatus and is also comprised the annular packing be placed between pipeline and plastic pipe, and pipeline comprises inwall, and the inwall of plastic pipe and pipeline is not exclusively fitted, and plastic pipe is supported by inwall and the annular packing of pipeline.

In another embodiment, pipeline comprises inwall, and the inwall of plastic pipe and pipeline fits tightly.

The utility model " the non-excavation liner of pipeline is repaired refreshing apparatus " does not need full-face tunneling can carry out the integral lining repairing construction for buried old steel pipe, usually only need be spaced in intervals an operating pit of excavation, segmentation is repaired, then connecting leg restores and can complete repair, does not affect traffic and environment.Utilize the utility model task equipment site operation repair speed fast, low with old renovation cost, the rehabilitation expense of the old pipeline of non-trenchless rehabilitation is only 50% of new pipeline comprehensive cost, can successfully be used for repairing the DN50-DN1500MM pipelines, as natural gas line, oil transport pipeline, filling pipe, water supply pipe.Can be used for municipal administration, oil field, gas field, electric power, the pipeline corrosion protection of the industries such as chemical industry and reparation.

With little cost, it is come into operation again, the whole technique for repairing and renewing of therefore old pipeline is very suitable for oil and gas long distance pipeline, gas, water and heat provision pipe network, and petroleum industry, the industries such as sewage treatment.This recovery technique produces far-reaching influence to the development of China's pipeline industry undoubtedly, and its Social benefit and economic benefit assessment sees the following form:

Project	Old pipe rehabilitation technology	Old pipeline renews pipeline
			Operating expenses	50％-60％	100％
Engineering time	Short	Long
			Boundary of works area	Fixed point is opened and is buried the operation hole	Open and bury completely
Construction equipment	According to technological process, successively dispatch	Main equipment is now cut for a long time
			Rebuild the life-span	More than 30 years	Average 20 years
Environmetal impact	Pollution-free	Dust, noise, clay contaminated is serious
			Traffic condition	Do not affect	Interrupt or be obstructed

The accompanying drawing explanation

The floor map that Fig. 1 is a kind of circular inner core in the utility model one embodiment;

The floor map that Fig. 2 is the tight pintle hook lock cover of a kind of circle in the utility model one embodiment;

The floor map that Fig. 3 is a kind of tight lock bolt in the utility model one embodiment;

The shape schematic diagram that Fig. 4 is a kind of PE pipe saw tooth in the utility model one embodiment;

Fig. 5 is that a kind of PE pipeline in the utility model one embodiment is with the floor map of closing up taper;

Fig. 6 is the whole process traction schematic diagram in the utility model one embodiment.

Embodiment

As shown in Fig. 1-6, the utility model all adopts 304 stainless steels to be made, and drawing-die inner core 1 forms for real core turning.If in large specification adopt hollow turning to make, it is trapezoidal that shape is, there is lines on surface, in order to tight lock, does not slide, inner core mesopore 10 is provided with the tooth line, upper and lower communications and liaison are specialized in tight lock bolt and are entangled firm and tighten up.Tight pintle hook lock cover 2 is hollow devices, and there is the circular hole 20 with inner core mesopore 10 same diameter on upper plane.Purposes is to inject in order to tight lock bolt, anti-jack panel.Plastic tube top saw tooth part in echelon, injects in tight pintle hook lock cover 2, under the effect of tightening up in 2 pairs of drivings of drawing-die inner core 1 and tight pintle hook lock cover, only entangles plastic tube 4 top trapezoidal portions firm, draws more capable and more capable, more capable tighter.Tight lock bolt 3 is Materials with High Strength production, and wear-resisting withstand voltage, rigidity is strong.The small-sized drawing-die of specification is tightly locked diameter of bolt 15MM, medium-sized drawing-die is tightly locked diameter of bolt 25MM, large-scale drawing-die is tightly locked diameter of bolt 40MM, after plastic tube 4 tapers inject tight pintle hook lock cover, after locking nut, just can start traction power equipment 6 and by wire rope 5, all size plastic tube be moved from waste and old steel pipe to 1-2KM place in addition.

Adopt the high-density polyethylene plastics pipe, undergauge interts laminating and the seamless special joint technology of automatically restoring, successful solution heat supply, combustion gas, the difficult trenchless rehabilitation problem of petroleum pipeline and online old pipeline.

Use acid thermoplastic materials HDPE pipe, it can recover original physical form after having distortion, and the external diameter of the liner HDPE pipe of selecting is slightly larger than the main pipeline internal diameter of reparation, passes through size reducing machine while passing through, from size reducing machine, HDPE out pipe diameter will dwindle 10% left and right, be less than main pipeline internal diameter to be repaired.Easily draw in former pipeline under tractive force and speed, after waiting for that plastic tube bounces back in steel pipe, PE pipe external diameter and former internal diameter of the pipeline are closely linked, and the pipeline overall performance is good, reliable in quality.Have better physical and chemical performance, also have outstanding wear resistance, resistance to compression is withstand voltage, and shock resistance reaches more than 50 years working life.

Utilize technique for repairing and renewing and the technique of the utility model to old pipeline:

1. interior interspersed method: this process using PE plastic tube or fiber reinforced pipe, intert in old pipeline, with old inner-walls of duct, not exclusively fit, pressure-bearing is by the transmission of inner wall tube and annular packing, because caliber dwindles to some extent, conveying capacity decreases, but subtract power from the resistance of tube wall despatch, considers, will be conducive to improve transfer capability, be applicable to the oil and gas pipes reparation of low-pressure delivery; (pine lining technique)

2. inner lining plastic tube method: macromolecule PE plastic tube being fitted tightly to (or claiming microgap liner) forms liner pipe (composite metal plastic pipe) in old inner-walls of duct face, and this method lining processing once can reach 1-2KM, can be used for the high-pressure delivery pipeline; The maximum characteristics of (tightly serving as a contrast technique) the utility model, the inner core cutting ferrule, tightly lock bolt, the three-in-one, thereby after making the PE pipe draw in waste and old steel pipe, under the draw of power, locking device draws tighter and tighter, can not cause loosening and comes off, and can guarantee once success of pipe in pipe pulling construction;

This use new and innovative part: utilize trapezoidal die head inner core and tight pintle hook lock cover, block the trapezoidal head of plastic tube.Locking device draws tighter and tighter, can slippage.Thoroughly solve the domestic and international similar repair trombone slide critical defect of slippage repeatedly halfway.

This uses novel using scope wide, is applicable to the cast iron tube of DN50-DN1500, cement pipe, steel pipe, the pipeline of the various materials such as bellows.

This use novel " the non-excavation liner of buried steel pipe technique for repairing and renewing equipment " is applied to the reparation renovation of old pipeline, pipeline is formed a kind of new pipeline configuration, the antiseptic property of HDPE pipe and the mechanical property of former pipeline are united two into one, thereby greatly improved the integrity of pipeline, can extend 40-50 working life, have good Social benefit and economic benefit, market prospects are very wide!

Specific embodiment described herein is only to the explanation for example of the utility model spirit.Those skilled in the art described in the utility model can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims

1. the non-excavation liner of pipeline is repaired refreshing apparatus, it is characterized in that: comprise a plastic pipe that head is in an inverted cone, an inner core be contained in described plastic pipe, a tight pintle hook lock cover be placed in outside described plastic pipe head, a tight lock bolt, article one, wire rope and one are used for the dynamic power machine of the described wire rope of power traction, described plastic pipe head is blocked in described inner core and the acting in conjunction of described tight pintle hook lock cover, described inner core is connected with described tight lock bolt thread, the two ends of described wire rope are connected with described dynamic power machine with described tight lock bolt respectively.

2. the non-excavation liner of pipeline according to claim 1 is repaired refreshing apparatus, and it is characterized in that: described core shape is trapezoidal, and the centre of described inner core is provided with tapped hole, and the surface of described inner core is provided with and is beneficial to the skid-resistant lines of tight lock.

3. the non-excavation liner of pipeline according to claim 2 is repaired refreshing apparatus, it is characterized in that: described tight pintle hook lock cover is provided with the tapped hole same diameter, the circular hole that be convenient to described tight lock bolt insertion with described inner core.

4. the non-excavation liner of pipeline according to claim 1 is repaired refreshing apparatus, and it is characterized in that: described plastic pipe is made by high-density polyethylene plastics or acid thermoplastic materials.

5. the non-excavation liner of pipeline according to claim 1 is repaired refreshing apparatus, it is characterized in that: the non-excavation liner of described pipeline is repaired refreshing apparatus and is also comprised the annular packing be placed between described pipeline and described plastic pipe, described pipeline comprises inwall, the inwall of described plastic pipe and described pipeline is not exclusively fitted, and described plastic pipe is supported by inwall and the described annular packing of described pipeline.

6. the non-excavation liner of pipeline according to claim 1 is repaired refreshing apparatus, and it is characterized in that: described pipeline comprises inwall, and the inwall of described plastic pipe and described pipeline fits tightly.