CN1207506C - Repairing method and repairing pipe structure for partially dug old pipeline with stainless lining - Google Patents
Repairing method and repairing pipe structure for partially dug old pipeline with stainless lining Download PDFInfo
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- CN1207506C CN1207506C CN 02123519 CN02123519A CN1207506C CN 1207506 C CN1207506 C CN 1207506C CN 02123519 CN02123519 CN 02123519 CN 02123519 A CN02123519 A CN 02123519A CN 1207506 C CN1207506 C CN 1207506C
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Abstract
The present invention provides a repairing method of a stainless steel lining pipe of a partially excavated old pipeline and a pipeline repairing structure, which belongs to the technical field of pipeline repair. The method and the structure of the present invention are used for solving the technical problems of low strength, short service life and easy generation of secondary pollution of the repairing structure made by the repairing method of the existing old pipeline. The repairing method mainly comprises the steps that the diameter of the stainless steel lining pipe 1-2 is reduced or expanded when the outside dimension of the stainless steel lining pipe 1-2 is equal to or approximately equal to the inner dimension of the old pipeline 1-1; the stainless steel lining pipe 1-2 of which both ends are welded with stainless steel short joints 1-4 is arranged in a first repairing pipeline structure, the old pipeline 1-1 is arranged outside the structure, and an adhesive 1-3 is arranged between the lining pipe and the pipeline; when the outside dimension of a stainless steel lining pipe 2-2 is smaller than the inner dimension of an old pipeline 2-1, the stainless steel lining pipe 2-2 is arranged in a second repairing pipeline structure, the old pipeline 2-1 is arranged outside the structure, and equidistant clamps 2-5, the adhesive and stuffing 2-3 are arranged between the lining pipe and the pipeline. The method and the structure of the present invention are mainly used for repairing various underground pipelines.
Description
Technical field
The stainless steel lining pipe restorative procedure and the pipe-repairing structure of the old pipeline of the local excavation that the present invention proposes belong to the pipe rehabilitation technology field, specially refer to and utilize stainless steel lining pipe repairing used pipeline.
Background technique
The underground pipelines such as crisscross oil, vapour, water supply and sewage, electric power, communication of burying underground of modern city, these pipelines various pipelines after long-time running will upgrade or repair, so that recover the function of pipeline.
Existing restorative procedure of old pipeline and the pipe-repairing structure made by materials such as steel pipe, cast iron tube, plastic tube, Glass Steel Tube, cement pipe are to utilize the operation well of local excavation that old pipeline is repaired on pipeline, mainly be to utilize nonmetallic material such as cement mortar, resin cement, various plastics, rubber to manage to be coated on the inwall of old pipeline, through solidifying to form the solid inside liner, but this non-metallic inner liner layer intensity is low, there is secondary pollution in medium especially water, does not satisfy modern people's requirement.
Summary of the invention
In order to overcome deficiency above-mentioned in the background technique, the present invention proposes a kind of efficient high-quality method and pipe-repairing structure of utilizing stainless steel lining pipe repairing used pipeline.
This restorative procedure comprises:
1. the stainless steel lining pipe restorative procedure of the old pipeline of a local excavation, at first carry out segmentation according to above ground structure situation and liner scheme to being embedded in underground pipeline, section length be several meters to hundreds of rice, dig the operation well in segmentation place, old pipeline 1-1 opens the suitable length of being convenient to operate in the operation well, the inner wall surface of back segmentation cleaning and smooth old pipeline 1-1, and decontamination, it is characterized in that this method may further comprise the steps:
1). the outside dimension of stainless steel lining pipe 1-2 equals or is approximately equal to the internal diameter size of old pipeline 1-1, and this stainless steel lining pipe 1-2 is that undergauge is made local wave concavity;
2). stainless steel lining pipe 1-2 inserts in the old pipeline 1-1 through the operation well;
3). utilize one of following method to finish the bloated footpath of stainless steel lining pipe 1-2, so that its outer surface is adjacent on the internal surface of old pipeline 1-1:
A. the mechanical bloated footpath of method c. hydraulic pressure, the bloated footpath of method b. air pressure, the footpath method that expands
D. the bloated footpath of blast method e. leads to the bloated footpath of method f. vacuum, the bloated footpath of ball method at a high speed
G. make up the bloated footpath of vacuum method;
4). order is finished the connection between being connected of being welded to connect between every section stainless steel lining pipe 1-2, stainless steel lining pipe 1-2 and old pipeline 1-1 and the old pipeline 1-1 in the operation well;
5). check the quality of connection of above-mentioned whole connection parts according to the rules.
2. the stainless steel lining pipe restorative procedure of the old pipeline of a local excavation, at first carry out segmentation according to above ground structure and liner scheme to being embedded in underground old pipeline, section length be several meters to hundreds of rice, dig the operation well in segmentation place, old pipeline 2-1 opens the suitable length of being convenient to operate in the operation well, the inner wall surface of back segmentation cleaning and smooth old pipeline 2-1, and decontamination; It is characterized in that this method may further comprise the steps:
1). the outer surface of stainless steel lining pipe 2-2 is provided with some equidistant card 2-5, the operation well in after stainless steel lining pipe 2-2 inserts old pipeline 2-1, inject binder and compound 2-3 by the injecting hole 2-6 that is arranged on the old pipeline 2-1, with the distance between maintenance stainless steel lining pipe 2-2 and the old pipeline 2-1 and certain binder thickness, also be provided with air outlet hole 2-7 on the old pipeline 2-1;
2). order is finished the connection between being connected of being welded to connect between every section stainless steel lining pipe 2-2, stainless steel lining pipe 2-2 and old pipeline 2-1 and the old pipeline 2-1 in the operation well;
3). check the quality of connection of above-mentioned whole connection parts according to the rules.
3. in above-mentioned two kinds of restorative procedures, old pipeline 1-1,2-1 can be a kind of in steel pipe, cast iron tube, plastic tube, Glass Steel Tube, the cement pipe; And can replace stainless steel lining pipe 1-2,2-2 with one of anti-corrosion titanium, aluminium, nickel, Cu metal tubes.
4. in above-mentioned first method, different with the wall thickness of stainless steel lining pipe 1-2 according to old pipeline 1-1, can also adopt binder 1-3 between old pipeline 1-1 and the stainless steel lining pipe 1-2.
5. utilize the pipe-repairing structure of the old pipeline that above-mentioned two kinds of restorative procedures make, it is characterized in that,
When old pipeline 1-1 internal diameter size equaled or is approximately equal to the outside dimension of stainless steel lining pipe 1-2, the pipe-repairing structure was:
Stainless steel lining pipe 1-2 is old pipeline 1-1 outward;
When the internal diameter size of old pipeline 2-1 during greater than the outside dimension of stainless steel lining pipe 2-2, the pipe-repairing structure is:
Be old pipeline 2-1 outside the stainless steel lining pipe 2-2, some equidistant card 2-5 are set between the two, fill out agent hole 2-6 and air outlet hole 2-7 to guarantee also to be provided with on the old pipeline 2-1 of distance between the two.
6. in above-mentioned pipe-repairing structure, old pipeline 1-1,2-1 can be a kind of in steel pipe, cast iron tube, plastic tube, Glass Steel Tube, the cement pipe; And can replace stainless steel lining pipe 1-2,2-2 with one of anti-corrosion titanium, aluminium, nickel, Cu metal tubes.
7. in above-mentioned pipe-repairing structure,, can adopt following structural type respectively according to the seal request difference of pipe-repairing:
1) stainless steel lining pipe 1-2 and stainless steel short circuit head 1-4 are welded to connect;
2) stainless steel lining pipe 1-2 and stainless steel short circuit head 1-4 are welded to connect, and also fill binder 1-3 between old pipeline 1-1 and the stainless steel lining pipe 1-2;
3) also fill binder 1-3 between old pipeline 1-1 and the stainless steel lining pipe 1-2.
8. in above-mentioned pipe-repairing structure, because old pipeline 3-1 is different with the size of stainless steel lining pipe 3-2, its pipe-repairing structure can be interior for eccentric stainless steel lining pipe 3-2, is outward old pipeline 3-1, and is filled by bulking agent 3-3 between two pipes.
The restorative procedure of the present invention's prompting is compared with the pipe-repairing structure with the restorative procedure of existing old pipeline with the pipe-repairing structure and is had the following advantages:
1. the pipeline configuration intensity height after repairing, increase anti-corrosion working life;
2. the pipeline configuration after repairing is to medium, and especially the water no secondary pollution is of value to health of human body;
3. the pipeline configuration environmentally safe after repairing.
Restorative procedure of the present invention and pipe-repairing structure are applicable to the reparation that is embedded in underground various pipelines.
Description of drawings
Fig. 1. the internal diameter size of old pipeline equals or a kind of pipe-repairing structural drawing when being approximately equal to stainless steel lining external diameter of pipe size;
Fig. 2. a kind of pipe-repairing structural drawing of the internal diameter size of old pipeline during greater than stainless steel lining external diameter of pipe size;
Fig. 3. the eccentric pipe-repairing structural drawing that inserts old pipeline of stainless steel lining pipe.
Old pipeline stainless steel lining pipe restorative procedure and the pipe-repairing structure of the local excavation that proposes below in conjunction with description of drawings the present invention.
Restorative procedure of the present invention adopts the old pipeline stainless steel lining pipe of local excavation to repair, to carry out segmentation according to above ground structure situation and liner scheme to the underground pipeline of burying underground, segmentation can the time several meters to hundreds of rice, dig operating well in segmentation place, inner at operating well, open the suitable length of old pipeline 1-1,2-1,3-1, in order to repair accordingly operation.
It is large that two kinds of operating well discrete and inclineds, vertical operation well are applicable to the old piping laying degree of depth, the situation that old pipe diameter is large, and at this moment the stainless steel lining pipe is made a section short tube, and each short tube is put in operating well and the old pipeline one by one; It is little that the inclined operating well is applicable to the old piping laying degree of depth, the situation that old pipe diameter is little, this is can be with long stainless steel lining pipe, it can once send into operating well and the old pipeline of packing in.
Fig. 1 has represented that the internal diameter size of old pipeline equals or a kind of pipe-repairing structure when being approximately equal to stainless steel lining pipe outside dimension, then make local wave concavity for undergauge stainless steel lining pipe 1-2, the two ends of stainless steel lining pipe 1-2 are being welded to connect the stainless steel short circuit head in this structure, the outside is old pipeline 1-1, inside is stainless steel lining 1-2, be bonding agent 1-3 therebetween, the two ends of stainless steel lining pipe 1-2 and stainless steel short circuit head 1-4 are welded to connect.
A kind of pipe-repairing structure of the internal diameter size that Fig. 2 represents old pipeline during greater than stainless steel lining pipe outside dimension, the outer surface of stainless steel lining pipe 2-2 arranges some equidistant card 2-5, after pack in the old pipeline 2-1, then between two pipes, inject bonding agent and filler 2-3 by the injecting hole 2-6 that is arranged on the old pipeline 2-1, to guarantee distance between two pipes and certain bonding agent thickness, on old pipeline 2-1, also be provided with venthole 2-7, so just formed another kind of pipe-repairing structure as shown in Figure 2, in this structure, the outside is old pipeline 2-1, inside is stainless steel lining pipe 2-2, be some equidistant card 2-5 and bonding agent and filler 2-3 between two pipes, also be provided with injecting hole 2-6 and venthole 2-7 on the old pipeline 2-1.
Fig. 3 represents the eccentric pipe-repairing structure of inserting in the old pipeline of stainless steel lining pipe, in this structure, is outward old pipeline 3-1, and interior is eccentric stainless steel lining pipe 3-2, is filler 3-3 between two pipes.
In pipe-repairing structure shown in Figure 1, because the seal request of pipe-repairing is not high, also can be without stainless steel short circuit head 1-2.
In pipe-repairing structure illustrated in figures 1 and 2, because old pipeline 1-1,2-1 and stainless steel lining pipe 1-2, the wall thickness of 2-2 is different, also can be without bonding agent 1-3,2-3.
Specific implementation method
1. utilize vertical operation well to repair the old pipeline that carbon steel tube is made, carbon steel tube 73 * 5.5mm, the stainless steel lining tubing matter of employing is 304 stainless steels, is of a size of 61 * 0.4mm, its section length is 9-20m, be of a size of 59-60mm behind its undergauge, seal after putting into old carbon steel tube, utilize gasoline and the oxygen mixture blast footpath of expanding, stainless steel lining pipe its inner wall smooth on inspection that expands behind the footpath, utilize the 20MPa hydraulic test, ne-leakage meets the technical requirements of former carbon steel tube.
2. utilize vertical operation well to repair 300 * 40mm cement pipe, it is 304 stainless stainless steel lining pipes that its inner lining is gone into material, and it is of a size of 280 * 0.5mm, length is 80m, after it puts into cement pipe, put into some equidistant cards between cement pipe and the stainless steel lining pipe, equidistantly blocking spacing is 500mm, the sealing of two pipe ends, vacuumize the back and inject resin mortar, fill with the back and solidify, utilize the 1MPa hydraulic test, ne-leakage meets former cement pipe standard.
Claims (11)
1. the stainless steel lining pipe restorative procedure of the old pipeline of a local excavation, at first to carry out segmentation according to above ground structure situation and liner scheme to being embedded in underground old pipeline, section length be several meters to hundreds of rice, dig the operation well in segmentation place, old pipeline (1-1) is opened the suitable length of being convenient to operate in the operation well, the inner wall surface of back segmentation cleaning and smooth old pipeline (1-1), and decontamination, it is characterized in that this method may further comprise the steps:
1). the outside dimension of stainless steel lining pipe (1-2) equals or is approximately equal to the internal diameter size of old pipeline (1-1), and this stainless steel lining pipe (1-2) is made local wave concavity for undergauge;
2). stainless steel lining pipe (1-2) is inserted in the old pipeline (1-1) through the operation well;
3). utilize one of following method to finish the bloated footpath of stainless steel lining pipe (1-2), so that its outer surface is adjacent on the internal surface of old pipeline (1-1):
A. the mechanical bloated footpath of method c. hydraulic pressure, the bloated footpath of method b. air pressure, the footpath method that expands
D. the bloated footpath of blast method e. leads to the bloated footpath of method f. vacuum, the bloated footpath of ball method at a high speed
G. make up the bloated footpath of vacuum method;
4). order is finished the connection between being connected of being welded to connect between every section stainless steel lining pipe (1-2), stainless steel lining pipe (1-2) and old pipeline (1-1) and the old pipeline (1-1) in the operation well;
5). check the quality of connection of above-mentioned whole connection parts according to the rules.
2. the stainless steel lining pipe restorative procedure of the old pipeline of a local excavation, at first carry out segmentation according to above ground structure and liner scheme to being embedded in underground old pipeline, section length be several meters to hundreds of rice, dig the operation well in segmentation place, old pipeline (2-1) is opened the suitable length of being convenient to operate in the operation well, the inner wall surface of back segmentation cleaning and smooth old pipeline (2-1), and decontamination; It is characterized in that this method may further comprise the steps:
1). the outer surface of stainless steel lining pipe (2-2) is provided with some equidistant cards (2-5), the operation well in after stainless steel lining pipe (2-2) inserts old pipeline (2-1), inject binder and compound (2-3) by the injecting hole (2-6) that is arranged on the old pipeline (2-1), with the distance between maintenance stainless steel lining pipe (2-2) and the old pipeline (2-1) and certain binder thickness, also be provided with air outlet hole (2-7) on the old pipeline (2-1);
2). order is finished the connection between being connected of being welded to connect between every section stainless steel lining pipe (2-2), stainless steel lining pipe (2-2) and old pipeline (2-1) and the old pipeline (2-1) in the operation well;
3). check the quality of connection of above-mentioned whole connection parts according to the rules.
3. the stainless steel lining pipe restorative procedure of the old pipeline of local excavation according to claim 1 and 2 is characterized in that, (1-1 2-1) can be a kind of in steel pipe, cast iron tube, plastic tube, Glass Steel Tube, the cement pipe to old pipeline; And can with one of anti-corrosion titanium, aluminium, nickel, Cu metal tubes replace the stainless steel lining pipe (1-2,2-2).
4. the old pipeline stainless steel lining pipe restorative procedure of local excavation according to claim 1, different according to old pipeline (1-1) with the wall thickness of stainless steel lining pipe (1-2), can also adopt binder (1-3) between old pipeline (1-1) and the stainless steel lining pipe (1-2).
5. the stainless steel lining pipe pipe-repairing structure of the old pipeline made of a stainless steel lining pipe restorative procedure that utilizes the old pipeline of claim 1 or 2 described local excavations is characterized in that,
When old pipeline (1-1) internal diameter size equaled or is approximately equal to the outside dimension of stainless steel lining pipe (1-2), the pipe-repairing structure was:
Stainless steel lining pipe (1-2) is outer to be old pipeline (1-1).
6. the stainless steel lining pipe pipe-repairing structure of the old pipeline made of a stainless steel lining pipe restorative procedure that utilizes the old pipeline of claim 1 or 2 described local excavations is characterized in that,
When the internal diameter size of old pipeline (2-1) during greater than the outside dimension of stainless steel lining pipe (2-2), the pipe-repairing structure is:
Be old pipeline (2-1) outside the stainless steel lining pipe (2-2), some equidistant cards (2-5) are set between the two,, also be provided with on the old pipeline (2-1) and fill out agent hole (2-6) and air outlet hole (2-7) to guarantee distance between the two.
7. according to the stainless steel lining pipe pipe-repairing structure of claim 5 or 6 described old pipelines, it is characterized in that (1-1 2-1) can be a kind of in steel pipe, cast iron tube, plastic tube, Glass Steel Tube, the cement pipe to old pipeline; And can with one of anti-corrosion titanium, aluminium, nickel, Cu metal tubes replace the stainless steel lining pipe (1-2,2-2).
8. according to the stainless steel lining pipe pipe-repairing structure of claim 5 or 6 described old pipelines, it is characterized in that according to the seal request difference of pipe-repairing, stainless steel lining pipe (1-2) is welded to connect with stainless steel short circuit head (1-4).
9. according to the stainless steel lining pipe pipe-repairing structure of claim 5 or 6 described old pipelines, it is characterized in that, seal request difference according to pipe-repairing, stainless steel lining pipe (1-2) is welded to connect with stainless steel short circuit head (1-4), and also fills binder (1-3) between old pipeline (1-1) and the stainless steel lining pipe (1-2).
10. according to the stainless steel lining pipe pipe-repairing structure of claim 5 or 6 described old pipelines, it is characterized in that,, also fill binder (1-3) between old pipeline (1-1) and the stainless steel lining pipe (1-2) according to the seal request difference of pipe-repairing.
11. stainless steel lining pipe repair structure according to claim 5 or 6 described old pipelines, it is characterized in that, because old pipeline (3-1) is different with the size of stainless steel lining pipe (3-2), its pipe-repairing structure can be the interior eccentric stainless steel lining pipe (3-2) that is, outer is old pipeline (3-1), and is filled by bulking agent (3-3) between two pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02123519 CN1207506C (en) | 2002-06-28 | 2002-06-28 | Repairing method and repairing pipe structure for partially dug old pipeline with stainless lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02123519 CN1207506C (en) | 2002-06-28 | 2002-06-28 | Repairing method and repairing pipe structure for partially dug old pipeline with stainless lining |
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| Publication Number | Publication Date |
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| CN1388335A CN1388335A (en) | 2003-01-01 |
| CN1207506C true CN1207506C (en) | 2005-06-22 |
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| CN 02123519 Expired - Fee Related CN1207506C (en) | 2002-06-28 | 2002-06-28 | Repairing method and repairing pipe structure for partially dug old pipeline with stainless lining |
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| CN100335836C (en) * | 2004-11-12 | 2007-09-05 | 广东联塑科技实业有限公司 | Damaged pipeline repairing apparatus and method thereof |
| US9052051B2 (en) * | 2009-04-20 | 2015-06-09 | Link-Pipe, Inc. | Apparatus and method for internal repair of conduits |
| CN102128309A (en) * | 2010-10-29 | 2011-07-20 | 广东联塑科技实业有限公司 | Non-excavation steel pipe repair technology |
| CN103982748B (en) * | 2014-06-10 | 2015-12-30 | 武汉中地管通非开挖科技有限公司 | A kind of modified model pipeline stainless steel inner lining restorative procedure |
| CN104308449A (en) * | 2014-08-28 | 2015-01-28 | 天津市管道工程集团有限公司 | Technology for repairing big-caliber concrete pipeline lining by utilizing thin wall stainless steel |
| CN104864176B (en) * | 2014-11-24 | 2016-11-30 | 长春工业大学 | A kind of installation method of oil field gathering and transportation composite metal plastic pipe |
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| CN106949336B (en) * | 2017-05-15 | 2019-02-26 | 丁冲 | A kind of anti-corrosion pipeline Rapid leakage repairing method |
| CN107763362A (en) * | 2017-10-12 | 2018-03-06 | 济南普利市政管网工程有限责任公司 | Interior piston ring method pipe joint method for repairing and constructing |
| CN111677972B (en) * | 2020-05-31 | 2021-11-05 | 中国电建集团华东勘测设计研究院有限公司 | Prefabricated steel ring construction method applied to rapid repair of pressure pipeline |
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