CN108006346B - Pipeline connection method for municipal pipeline laying - Google Patents
Pipeline connection method for municipal pipeline laying Download PDFInfo
- Publication number
- CN108006346B CN108006346B CN201711446148.8A CN201711446148A CN108006346B CN 108006346 B CN108006346 B CN 108006346B CN 201711446148 A CN201711446148 A CN 201711446148A CN 108006346 B CN108006346 B CN 108006346B
- Authority
- CN
- China
- Prior art keywords
- liquid asphalt
- flanges
- hot
- pipelines
- slag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
- F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
Abstract
The invention discloses a pipeline connecting method for laying municipal pipelines, which comprises the following steps: 1) the method comprises the following steps of utilizing a 3D printer, taking water-soluble wires as raw materials, utilizing a printing nozzle, and carrying out hot-melting printing and stacking to form a support body or a support unit, wherein the support body or the support unit comprises a cavity capable of containing fluid; 2) injecting hot-melt liquid asphalt into the cavity, and placing the hot-melt liquid asphalt between the flanges of the two connected pipelines along with the supporting body or the supporting unit; 3) when the liquid asphalt is in a hot melting state, the liquid asphalt is pressurized to the support body or the support unit to be crushed into slag materials by screwing the connecting screw rods of the flanges of the two adjacent pipelines until the liquid asphalt overflows from the cavity, then the liquid asphalt is mixed with the slag materials and is distributed between the flanges of the two adjacent pipelines along the circumferential direction, so as to form a bonding mixed material for bonding the two flanges; 4) and cooling the liquid asphalt to be solidified.
Description
Technical Field
The invention relates to a municipal pipeline construction operation method, in particular to a pipeline connection method for laying municipal pipelines.
Background
In the municipal construction process, a plurality of sections of pipelines need to be connected into a whole, and certain treatment is needed to be carried out at the pipeline connection position due to the requirements of sealing or heat preservation and other properties; the processing method in the prior art mainly comprises the following steps:
1. sealing is performed with a sealing material such as a gasket. The sealing method has the disadvantages that due to the limitation of environmental conditions and use time, the sealing effect is reduced after the sealing method is used for a period of time, for example, the sealing element is aged and rusted, so that the sealing effect is influenced and even potential safety hazards are brought, and for the purpose, the sealing material is replaced regularly in the conventional treatment mode.
2. And (5) welding the joint of the pipelines. Although the welding method can avoid the occurrence of unfavorable situations such as the loss of the sealing element, the welding method is obviously unfavorable when the pipeline connection needs to be disassembled due to accidents or other reasons.
Disclosure of Invention
The invention aims to provide a pipeline connecting method which has better sealing performance and is convenient to disassemble when used for laying municipal pipelines.
The technical problem to be solved can be implemented by the following technical scheme.
A pipeline connecting method for laying municipal pipelines is characterized by comprising the following steps:
1) the method comprises the following steps of utilizing a 3D printer, taking water-soluble wires as raw materials, utilizing a printing nozzle, and carrying out hot-melting printing and stacking to form a support body or a support unit, wherein the support body or the support unit comprises a cavity capable of containing fluid;
2) injecting hot-melt liquid asphalt into the cavity, and placing the hot-melt liquid asphalt between the flanges of the two connected pipelines along with the supporting body or the supporting unit;
3) when the liquid asphalt is in a hot melting state, the liquid asphalt is pressurized to the support body or the support unit to be crushed into slag materials by screwing the connecting screw rods of the flanges of the two adjacent pipelines until the liquid asphalt overflows from the cavity, then the liquid asphalt is mixed with the slag materials and is distributed between the flanges of the two adjacent pipelines along the circumferential direction, so as to form a bonding mixed material for bonding the two flanges;
4) and cooling the liquid asphalt to be solidified.
As a further improvement of the technical scheme, the volume ratio of the slag charge to the liquid asphalt is 1: 3-1: 5.
Also as a further improvement of the technical proposal, the method also comprises the step of covering the exposed slag with hot-melt liquid asphalt.
As a further improvement of the technical proposal, the method also comprises the step of painting a waterproof coating on the surface of the formed bonding mixed material.
As a preferred embodiment of the invention, the surface of one side, connected with the flange, of the flange is provided with grooves or grooves grids.
According to the pipeline connecting method for municipal pipeline laying, which adopts the technical scheme, the sealing between the adjacent flange plates is realized through the application of the bonding filling material formed by mixing the asphalt and the water-soluble slag charge. The service life is long, the environmental adaptability is good, and the installation and the disassembly are convenient.
Drawings
FIG. 1 is a schematic structural view of a support unit used in the pipe connecting method of the present invention;
FIG. 2 is a schematic structural view of a pipe joint in the pipe joining method of the present invention;
in the figure: 100. 200-pipe 110, 210-connecting flange 111, 211-groove 300-asphalt 410, 420-connecting bolt 500-supporting unit 510- slag 520, 530, 540, 550-chamber
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The invention aims to provide a method for connecting pipelines in municipal pipeline laying, which combines the following structures and steps with the attached drawings 1 and 2:
1) the frame type supporting unit 500 illustrated in fig. 1 is built by hot-melt printing and stacking with a 3D printer and a printing nozzle by using a water-soluble wire as a raw material, wherein the supporting unit 500 comprises a plurality of chambers 520, 530, 540, 550 and the like capable of containing fluid.
2) Injecting hot-melt liquid asphalt into each cavity, and placing the hot-melt liquid asphalt into the gap between the connecting flanges 110 and 210 of the two connected pipelines 100 and 200 along with the supporting unit 500; the plurality of support units 500 are uniformly arranged in the circumferential direction.
3) When the liquid asphalt is still in a hot melting state, the inner walls of the chambers of the supporting unit are pressed and crushed into slag 510 after being pressed along the directions of arrows A and B by screwing the connecting screws 410 and 420 of the two adjacent pipeline flanges, until the liquid asphalt overflows from the chambers, is mixed with the slag 510 and is fully distributed in the space between the connecting flanges 110 and 210 along the circumferential direction, so as to form a bonding mixed material for bonding the two flanges; i.e. the space is filled with the mixture of the slag 510 and the asphalt 300; the final mixing ratio of the two is preferably kept at 1:3 to 1:5 by volume, and 1:3 is preferred.
Wherein, the surfaces of the connecting flange plates 110 and 210 are provided with a plurality of grooves 111 and 211, and the extruded solid-liquid mixture also enters the grooves, thereby increasing the bonding strength.
4) And cooling the liquid asphalt until solidification so as to further form a stable sealing object.
The exposed slag 510 may be covered with hot molten liquid asphalt as necessary. And similarly, a waterproof coating can be coated on the surface of the formed bonding mixed material.
When disassembly is needed subsequently, the asphalt can be softened by heating and then removed, and meanwhile, slag which plays a supporting role in the binding material is made of water-soluble materials and can be removed in a dissolving mode if necessary.
Claims (5)
1. A pipe joining method for municipal pipeline laying, comprising the steps of:
1) the method comprises the following steps of utilizing a 3D printer, taking water-soluble wires as raw materials, utilizing a printing nozzle, and carrying out hot-melting printing and stacking to form a support body or a support unit, wherein the support body or the support unit comprises a cavity capable of containing fluid;
2) injecting hot-melt liquid asphalt into the cavity, and placing the hot-melt liquid asphalt between the flanges of the two connected pipelines along with the supporting body or the supporting unit;
3) when the liquid asphalt is in a hot melting state, the liquid asphalt is pressurized to the support body or the support unit to be crushed into slag materials by screwing the connecting screw rods of the flanges of the two adjacent pipelines until the liquid asphalt overflows from the cavity, then the liquid asphalt is mixed with the slag materials and is distributed between the flanges of the two adjacent pipelines along the circumferential direction, so as to form a bonding mixed material for bonding the two flanges;
4) and cooling the liquid asphalt to be solidified.
2. The pipe connection method for municipal pipeline laying according to claim 1, wherein the slag and the liquid asphalt are mixed in a volume ratio of 1:3 to 1: 5.
3. The method of joining pipes for municipal pipeline laying according to claim 1, further comprising the step of covering the exposed slag with hot-melt liquid asphalt.
4. The pipe connecting method for municipal pipeline laying according to claim 1 or 3, further comprising the step of painting a waterproof coating on the surface of the formed bonded mixed material.
5. The method for connecting pipelines for laying municipal pipelines according to claim 1, wherein the surfaces of the flanges on the sides where they meet are provided with grooves or grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711446148.8A CN108006346B (en) | 2017-12-27 | 2017-12-27 | Pipeline connection method for municipal pipeline laying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711446148.8A CN108006346B (en) | 2017-12-27 | 2017-12-27 | Pipeline connection method for municipal pipeline laying |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108006346A CN108006346A (en) | 2018-05-08 |
| CN108006346B true CN108006346B (en) | 2020-01-24 |
Family
ID=62061868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711446148.8A Active CN108006346B (en) | 2017-12-27 | 2017-12-27 | Pipeline connection method for municipal pipeline laying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108006346B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2000567A (en) * | 1977-07-02 | 1979-01-10 | Anderson J | A method of joining pipes or like structures |
| FR2615590A1 (en) * | 1987-05-22 | 1988-11-25 | Compagnon Jean Pierre | Method for plugging fugitive flanges under pressure |
| CN2658527Y (en) * | 2003-10-14 | 2004-11-24 | 李强 | Flange connecting sealing component for high-temp. high-pressure |
| CN204420369U (en) * | 2014-11-08 | 2015-06-24 | 山西诚信市政建设有限公司 | A kind of linkage structure of large-caliber drainage pipeline |
| CN104565617A (en) * | 2014-12-22 | 2015-04-29 | 洛阳能源密封件有限公司 | High-temperature medium conveying pipeline butt joint sealing element |
| CN104847983A (en) * | 2015-04-09 | 2015-08-19 | 山东华信塑胶股份有限公司 | Plastic flange connecting sealing system |
| CN105952997B (en) * | 2016-07-20 | 2018-06-22 | 辽阳给排水设备阀门有限公司 | A kind of filling type insulating joint and its manufacture craft |
-
2017
- 2017-12-27 CN CN201711446148.8A patent/CN108006346B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108006346A (en) | 2018-05-08 |
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