CN114776895A - High-strength H-CPVC heat-resistant sewage pressure pipe - Google Patents
High-strength H-CPVC heat-resistant sewage pressure pipe Download PDFInfo
- Publication number
- CN114776895A CN114776895A CN202210352905.XA CN202210352905A CN114776895A CN 114776895 A CN114776895 A CN 114776895A CN 202210352905 A CN202210352905 A CN 202210352905A CN 114776895 A CN114776895 A CN 114776895A
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- CN
- China
- Prior art keywords
- pipe
- cpvc
- corrugated pipe
- sewage pressure
- corrugated
- 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.)
- Pending
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- 239000004801 Chlorinated PVC Substances 0.000 title claims abstract description 28
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 title claims abstract description 28
- 239000010865 sewage Substances 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000005187 foaming Methods 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
- F16L9/128—Reinforced pipes
-
- 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
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Compositions for or methods of fixing a thermally insulating material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a high-strength H-CPVC heat-resistant sewage pressure pipe which comprises an inner pipe and an outer pipe, wherein a corrugated pipe is arranged between the inner pipe and the outer pipe, and a gap between the inner pipe and the outer pipe is filled with a foaming material; a reinforcing plate is fixed in the middle of the corrugation of the corrugated pipe; the corrugations of the corrugated pipe are arranged along the circumferential direction. The double-layer H-CPVC composite material has better effects of high temperature resistance, corrosion resistance and the like by adopting a double-layer H-CPVC material; the internal pressurized foaming material generates prestress, so that the pressure of internal water flow is fully counteracted, the strength of the whole structure is increased, and the deformation quantity of the whole structure is reduced; the rigid support is formed by the corrugated pipe and the reinforcing plate, and a sufficient energy consumption and energy absorption structure is formed during deformation, so that better bearing capacity is realized.
Description
Technical Field
The invention belongs to the technical field of pipelines, and relates to a high-strength H-CPVC heat-resistant sewage pressure pipe.
Background
The cpvc pipe has the characteristics of high strength, good flexibility, high temperature resistance, corrosion resistance, good insulating property, no pollution, difficult aging, light weight, convenient construction and the like. And are therefore commonly used in municipal pipelines. However, when it is used as a sewage pipe, it is gradually deformed by the pressure of water pressure, so that its flexibility and strength become gradually low, and thus improvement is required.
Disclosure of Invention
In order to solve the technical problem, the invention discloses a high-strength H-CPVC heat-resistant sewage pressure pipe.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a high-strength H-CPVC heat-resistant sewage pressure pipe comprises an inner pipe and an outer pipe, wherein a corrugated pipe is arranged between the inner pipe and the outer pipe, and a foaming material is filled in a gap between the inner pipe and the outer pipe; a reinforcing plate is fixed in the middle of the corrugation of the corrugated pipe; the corrugations of the corrugated pipe are arranged along the circumferential direction.
In a further improvement, the inner and outer pipes are both made of H-CPVC material.
In a further improvement, the corrugated pipe and the reinforcing plate are both made of carbon fiber plates.
In a further improvement, the corrugation of the corrugated pipe is sinusoidal or triangular or trapezoidal.
In a further improvement, through holes are formed in the corrugated pipe and the reinforcing plate.
In a further improvement, the foaming material is polyurethane foaming material.
The further improvement is that the manufacturing method of the high-strength H-CPVC heat-resistant sewage pressure pipe comprises the following steps: step one, preparing a corrugated pipe, and fixing reinforcing plates in the middle of corrugations of the corrugated pipe to form a corrugated pipe structure; punching a plurality of through holes on the corrugated pipe and the reinforcing plate;
fixing the corrugated pipe structure on the inner pipe, and then sleeving the corrugated pipe structure into the outer pipe;
inserting a cylindrical inner die into the inner tube, sleeving a circular outer film into the outer tube, and installing sealing covers at the top and the bottom of the outer tube; a feed inlet and a discharge outlet are formed on the annular outer membrane and the outer tube;
fourthly, enabling the feed port to be arranged at the lower part and the discharge port to be arranged at the upper part, injecting the foaming material into the feed port, and performing ultrasonic vibration to enable the foaming material to fill the gap between the inner pipe and the outer pipe;
step five, pressurizing at a feed inlet and a discharge outlet, and then foaming to enable the internal pressure to be MPa; and fifthly, removing the inner mold and the outer film after the foaming material is solidified to obtain the high-strength H-CPVC heat-resistant sewage pressure pipe.
In a further improvement, through holes are formed in both the corrugated pipe and the reinforcing plate.
In a further improvement, the sealing covers are respectively in threaded connection with the top and the bottom of the circular outer membrane.
The invention has the advantages that:
1. the double-layer H-CPVC material is adopted, so that the effects of high temperature resistance, corrosion resistance and the like are better.
2. The foaming material through inside pressurization produces prestressing force to fully offset the pressure of inside rivers, increased overall structure's intensity, reduced its deformation volume.
3. Form rigid support through bellows and reinforcing plate, and form abundant power consumption and energy-absorbing structure when deformation to there is better bearing capacity.
Drawings
FIG. 1 is a schematic structural diagram of a high-strength H-CPVC heat-resistant sewage pressure pipe.
Detailed Description
The present invention is further illustrated by the following examples.
Example 1
A manufacturing method of a high-strength H-CPVC heat-resistant sewage pressure pipe comprises the following specific steps:
step one, preparing an inner pipe 1, an outer pipe 2, a corrugated pipe 3 and a reinforcing plate 5; wherein the inner pipe 1 and the outer pipe 2 are both made of H-CPVC material, and the corrugated pipe 3 and the reinforcing plate 5 are both made of carbon fiber plates. The corrugations of the corrugated tube 3 are arranged in the circumferential direction. The corrugation of the bellows 3 may be sinusoidal or triangular or trapezoidal.
Fixing a reinforcing plate 5 in the middle of the corrugation of the corrugated pipe 3 to form a corrugated pipe structure; wherein the bellows 3 may be formed integrally with the reinforcement plate 5. Then punching a plurality of through holes on the corrugated pipe 3 and the reinforcing plate 5;
thirdly, welding and fixing the corrugated pipe structure on the inner pipe 1, then sleeving the outer pipe 2, and welding and fixing the outer pipe 2 and the corrugated pipe structure;
inserting a cylindrical inner mold into the inner tube to serve as an inner support, sleeving a circular outer membrane into the outer tube 2 to serve as an outer support, and installing sealing covers on the top and the bottom of the outer tube 2 to serve as supports for the top and the bottom; a feed inlet and a discharge outlet are formed on the annular outer membrane and the outer tube 2; in addition, a pressure valve is arranged at the discharge port of the circular outer membrane.
Fifthly, enabling the feed port to be arranged at the lower part and the discharge port to be arranged at the upper part, injecting the foaming material 4 into the feed port, and performing ultrasonic vibration to enable the foaming material to fill the gap between the inner pipe 1 and the outer pipe 2;
step six, foaming, namely setting the pressure at the pressure valve to be 0.2-0.3 Mpa;
and seventhly, removing the inner mold and the outer film after the foaming material 4 is solidified to obtain the high-strength H-CPVC heat-resistant sewage pressure pipe, wherein the structure is shown in figure 1.
The invention realizes rigid support of the inner pipe 1 and the outer pipe 2 through the corrugated pipe 3, and simultaneously pressurizes and injects the foaming material, thereby realizing internal pre-pressure of the inner pipe 1 and the outer pipe 2, thus when the pressure of the sewage introduced into the inner pipe is larger, a part of the pressure can be offset with the pressure of the foaming material, thereby effectively reducing the deformation of the pipeline and improving the integral strength of the pipeline. Simultaneously through the reinforcing plate, effectively prevented that bellows 3 from appearing deformation to form a plurality of cavities, thereby improve the intensity of whole pipeline, still make it have good thermal-insulated effect through expanded material.
It should be noted that the above embodiments are only used for illustrating the technical solution of the present invention and do not limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (9)
1. The high-strength H-CPVC heat-resistant sewage pressure pipe is characterized by comprising an inner pipe (1) and an outer pipe (2), and is characterized in that a corrugated pipe (3) is arranged between the inner pipe (1) and the outer pipe (2), and a foaming material (4) is filled in a gap between the inner pipe (1) and the outer pipe (2); a reinforcing plate (5) is fixed in the middle of the corrugation of the corrugated pipe (3); the corrugation of the corrugated pipe (3) is arranged along the circumferential direction.
2. A high strength H-CPVC heat resistant sewage pressure pipe according to claim 1, characterized in that the inner pipe (1) and the outer pipe (2) are made of H-CPVC material.
3. A high strength H-CPVC hot sewage pressure pipe as claimed in claim 1, wherein said corrugated pipe (3) and said reinforcing plate (5) are made of carbon fiber plate.
4. A high strength H-CPVC heat resistant sewage pressure pipe as claimed in claim 1, wherein the corrugations of said corrugated pipe (3) are sinusoidal or triangular or trapezoidal.
5. A high strength H-CPVC heat resistant sewage pressure pipe as claimed in claim 1, wherein said corrugated pipe (3) and said reinforcing plate (5) are formed with through holes.
6. A high strength H-CPVC heat resistant sewage pressure pipe as claimed in claim 1, characterized in that said foamed material (4) is a polyurethane foamed material.
7. The high strength H-CPVC heat resistant sewage pressure pipe of claim 1, wherein said high strength H-CPVC heat resistant sewage pressure pipe is made by the following method:
step one, preparing a corrugated pipe (3), and fixing a reinforcing plate (5) in the middle of each corrugation of the corrugated pipe (3) to form a corrugated pipe structure; a plurality of through holes are drilled on the corrugated pipe (3) and the reinforcing plate (5);
secondly, fixing the corrugated pipe structure on the inner pipe (1), and then sleeving the outer pipe (2);
inserting a cylindrical inner mold into the inner tube, sleeving a circular outer membrane into the outer tube (2), and mounting sealing covers at the top and the bottom of the outer tube (2); a feed inlet and a discharge outlet are formed on the circular outer membrane and the outer tube (2);
fourthly, enabling the feed port to be arranged at the lower part and the discharge port to be arranged at the upper part, injecting the foaming material (4) into the feed port, and carrying out ultrasonic vibration to enable the foaming material to fill the gap between the inner pipe (1) and the outer pipe (2);
step five, pressurizing at the feed inlet and the discharge outlet, and then foaming to ensure that the internal pressure is 0.2-0.3 Mpa;
and fifthly, removing the inner mold and the outer film after the foaming material (4) is solidified to obtain the high-strength H-CPVC heat-resistant sewage pressure pipe.
8. A high strength H-CPVC heat resistant sewage pressure pipe as claimed in claim 7, wherein said corrugated pipe (3) and said reinforcing plate (5) are formed with through holes.
9. The high strength H-CPVC heat resistant sewage pressure pipe of claim 7, wherein said caps are threaded on the top and bottom of the circular outer membrane, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210352905.XA CN114776895A (en) | 2022-04-06 | 2022-04-06 | High-strength H-CPVC heat-resistant sewage pressure pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210352905.XA CN114776895A (en) | 2022-04-06 | 2022-04-06 | High-strength H-CPVC heat-resistant sewage pressure pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114776895A true CN114776895A (en) | 2022-07-22 |
Family
ID=82426473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210352905.XA Pending CN114776895A (en) | 2022-04-06 | 2022-04-06 | High-strength H-CPVC heat-resistant sewage pressure pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114776895A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1348318A (en) * | 1970-01-28 | 1974-03-13 | Shell Int Research | Pipe line for the transport of cold liquids |
| GB1574991A (en) * | 1977-09-29 | 1980-09-17 | Kendall & Co | Method for applying foam insulation to pipe |
| CN102374345A (en) * | 2011-10-24 | 2012-03-14 | 广东联塑机器制造有限公司 | Three-wall corrugated tube |
| CN104089104A (en) * | 2014-06-30 | 2014-10-08 | 吴开勇 | Method for producing foaming heat-preservation pipe and foaming heat-preservation pipe |
| CN204573352U (en) * | 2015-04-07 | 2015-08-19 | 亚大塑料制品有限公司 | A kind of thermal insulation pipe |
| JP2016176511A (en) * | 2015-03-19 | 2016-10-06 | 明星工業株式会社 | Insulation method of piping |
| US20160305596A1 (en) * | 2015-04-20 | 2016-10-20 | Shawcor Ltd. | Foamed insulation coating on pipes and methods therefor |
| CN106366503A (en) * | 2016-08-31 | 2017-02-01 | 江苏百通塑业发展有限公司 | Hollow filled PVC (polyvinyl chloride) drainage pipe by W-shaped supports |
| CN107917289A (en) * | 2016-10-07 | 2018-04-17 | 天津浩康科技发展有限公司 | A kind of flame-retardant and anti-static toughening PVC tubing |
| CN109093906A (en) * | 2018-08-08 | 2018-12-28 | 日丰企业（佛山）有限公司 | A kind of prefabricated direct-buried heat insulation composite plastics pipe of polyurethane foam and preparation method thereof |
| CN109404618A (en) * | 2017-08-16 | 2019-03-01 | 湖北屯仓管业科技发展有限公司 | Triple-walled reinforcement pipe |
| CN113401511A (en) * | 2021-07-30 | 2021-09-17 | 苏州得高塑胶容器有限公司 | Food container and manufacturing method thereof |
| CN114251523A (en) * | 2022-01-12 | 2022-03-29 | 江苏中苏节水科技有限公司 | PE adds muscle composite pipe |
-
2022
- 2022-04-06 CN CN202210352905.XA patent/CN114776895A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1348318A (en) * | 1970-01-28 | 1974-03-13 | Shell Int Research | Pipe line for the transport of cold liquids |
| GB1574991A (en) * | 1977-09-29 | 1980-09-17 | Kendall & Co | Method for applying foam insulation to pipe |
| CN102374345A (en) * | 2011-10-24 | 2012-03-14 | 广东联塑机器制造有限公司 | Three-wall corrugated tube |
| CN104089104A (en) * | 2014-06-30 | 2014-10-08 | 吴开勇 | Method for producing foaming heat-preservation pipe and foaming heat-preservation pipe |
| JP2016176511A (en) * | 2015-03-19 | 2016-10-06 | 明星工業株式会社 | Insulation method of piping |
| CN204573352U (en) * | 2015-04-07 | 2015-08-19 | 亚大塑料制品有限公司 | A kind of thermal insulation pipe |
| US20160305596A1 (en) * | 2015-04-20 | 2016-10-20 | Shawcor Ltd. | Foamed insulation coating on pipes and methods therefor |
| CN106366503A (en) * | 2016-08-31 | 2017-02-01 | 江苏百通塑业发展有限公司 | Hollow filled PVC (polyvinyl chloride) drainage pipe by W-shaped supports |
| CN107917289A (en) * | 2016-10-07 | 2018-04-17 | 天津浩康科技发展有限公司 | A kind of flame-retardant and anti-static toughening PVC tubing |
| CN109404618A (en) * | 2017-08-16 | 2019-03-01 | 湖北屯仓管业科技发展有限公司 | Triple-walled reinforcement pipe |
| CN109093906A (en) * | 2018-08-08 | 2018-12-28 | 日丰企业（佛山）有限公司 | A kind of prefabricated direct-buried heat insulation composite plastics pipe of polyurethane foam and preparation method thereof |
| CN113401511A (en) * | 2021-07-30 | 2021-09-17 | 苏州得高塑胶容器有限公司 | Food container and manufacturing method thereof |
| CN114251523A (en) * | 2022-01-12 | 2022-03-29 | 江苏中苏节水科技有限公司 | PE adds muscle composite pipe |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220722 |
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| RJ01 | Rejection of invention patent application after publication |