CN110657305A - Combined sealing connection method for plastic pipes - Google Patents
Combined sealing connection method for plastic pipes Download PDFInfo
- Publication number
- CN110657305A CN110657305A CN201910932110.4A CN201910932110A CN110657305A CN 110657305 A CN110657305 A CN 110657305A CN 201910932110 A CN201910932110 A CN 201910932110A CN 110657305 A CN110657305 A CN 110657305A
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- China
- Prior art keywords
- pipe
- plastic pipe
- sleeve
- heating element
- sealing ring
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- 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
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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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/065—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket, the sealing rings being placed previously on the male part
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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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention relates to a plastic pipe combined type sealing connection method, which belongs to the technical field of plastic pipes.A sealing ring and a heating element are arranged on the inner wall of a connecting sleeve pipe horizontally, the connecting sleeve pipe is sleeved with a left plastic pipe, a right plastic pipe is butted with the left plastic pipe, the heating element is electrified, and the heating element heats and melts the inner wall of the connecting sleeve pipe and the outer wall of the plastic pipe; by adopting a double sealing technical means of fusion welding of the rubber sealing ring and the heating element, the pipeline connection is firmer, and no leakage in sealing is ensured; the method is widely applied to the fields of municipal building water supply and drainage, gas, industrial pipelines and the like.
Description
Technical Field
The invention relates to the technical field of plastic pipes, in particular to a sealing ring sealing and fusion welding combined connecting method for plastic pipes.
Background
With the development of chemical industry technology, the plastic pipe can be used for producing non-toxic pipe, so that the plastic pipe has the performance of common polyvinyl chloride, and has some excellent performances, particularly the advantages of good corrosion resistance and flexibility, thereby being particularly suitable for water supply and drainage pipe networks.
The existing plastic pipe connection modes mainly comprise plastic welding, flange connection and the like.
Plastic welding refers to a joining method in which two plastic parts are joined into a single body by simultaneously melting the contact surfaces of the two plastic parts by heating. The prior art plastic welding techniques include hot plate welding, hot air welding, hot bar and pulse welding, etc. The hot plate welding is to melt and soften two planes to be welded by a plane electric heating plate, then quickly remove the electric heating plate, combine the two planes and apply force to the two planes for cooling. The hot air welding means that when hot air flow is directly blown to a joint area, filler wires which are made of the same material as the base metal in the joint area are melted. The two techniques of hot bar and pulse welding are mainly used for welding the plastic films with smaller thickness.
The flange connection adopts a mechanical method, the common flanges are made of cast iron, alloy and the like and are used for fastening plastic parts, the expansion coefficients or the contraction coefficients are different, the connection quality is not high, and the cost is higher.
The connecting device or the connecting method have the defects of inconvenient construction on site at a construction site, long construction time, low economic benefit, incapability of ensuring the connection quality, short service life and other engineering quality problems.
Disclosure of Invention
In order to overcome the defects of the existing plastic pipe connection mode, the invention provides a plastic pipe combined type sealing connection method.
The plastic pipe combined sealing connecting device comprises a plastic pipe, a sleeve, a sealing ring and a heating element; the plastic pipe comprises a socket pipe and a socket pipe; the connection relationship of the plastic pipe combined type sealing connection device is as follows: the method comprises the steps of firstly, horizontally placing two plastic pipes with the same pipe diameter to be connected, installing a sealing ring and a heating element on the inner wall of a connecting sleeve, then, sleeving a left plastic pipe on the connecting sleeve, then, butting a right plastic pipe with the left plastic pipe, namely, butting the right end face of the left plastic pipe with the left end face of the right plastic pipe, electrifying the heating element on the inner wall of the sleeve after butting in place, heating and melting the inner wall of the connecting sleeve and the outer wall of the plastic pipe by the heating element, and carrying out combined sealing connection on the plastic pipes.
The heating element is any one of a heating wire, a heating ring, a heating disc and a heating sheet.
The plastic pipe combined sealing connection method adopts a plastic pipe combined sealing connection device which comprises a plastic pipe, a sleeve, a sealing ring and a heating element; the plastic pipe comprises a socket pipe and a socket pipe;
the method comprises the following steps: checking a plastic pipe, a sleeve, a sealing ring and a heating element of the plastic pipe combined type sealing connection device; comprises a socket pipe and a spigot pipe; after the requirement of safe production is met, the installation and connection are started;
the method comprises the following steps: cleaning the outer wall of the plastic pipe and the inner wall of the sleeve, particularly the positions of a sealing groove and a heating element;
the method comprises the following steps: the inner wall of the sleeve is sequentially provided with a sealing ring and a heating element;
the method comprises the following steps: the plastic pipe to be installed is well installed and positioned, the left side of the sleeve is butted with the right side of the left end plastic pipe according to the design size requirement, then the right side of the sleeve is butted with the left side of the right end plastic pipe according to the design size requirement,
the method comprises the following steps: checking whether the connection position meets the design requirement or not, and whether the sealing ring is installed in place or not, wherein the heating element is intact;
the method comprises the following steps: determining that the connecting sleeve sealing ring is in place, and switching on a power supply of the heating element after the heating element is not damaged, and heating, melting and welding;
the method comprises the following steps: checking the fusion welding quality of the connecting position of the heating element to meet the technical requirements; delivering for use; and finishing the pipeline connection installation construction.
The method comprises the following steps: the inner wall of the sleeve is sequentially provided with the sealing rings and the heating elements, namely the symmetrical center of the horizontal length of the sleeve is taken as the butt joint position of the plastic pipe, and the inner wall of the sleeve is respectively provided with at least more than one sealing ring and at least more than one group of heating elements towards the right side; at least more than one sealing ring and at least more than one group of heating elements are respectively arranged on the inner wall of the sleeve towards the left side.
The method comprises the following steps: cleaning the outer wall of the plastic pipe and the inner wall of the sleeve, particularly the positions of a sealing groove and a heating element; the plastic pipe and the sleeve are combined into a whole, and one end of the plastic pipe is made into a socket pipe with a socket.
The inner wall of the socket pipe is provided with a sealing groove for mounting a sealing ring and a heating element; at least more than one sealing ring and more than one group of heating elements are arranged, and the socket pipe is in butt joint and matched connection with the socket pipe.
Or: the method comprises the following steps: the plastic pipe is used as a socket pipe; the outer wall of the socket pipe is provided with a sealing groove for mounting a sealing ring and a heating element; at least more than one sealing ring and more than one group of heating elements are arranged, and the socket pipe is in butt joint and matched connection with the socket pipe.
The inner wall of the sleeve is provided with a sealing ring and a heating element, namely when the nominal pipe diameter of the plastic pipe is 30-1000 cm, at least more than two sealing rings and more than two groups of heating elements are arranged.
The inner wall of the sleeve is provided with sealing rings and heating elements, namely when the nominal pipe diameter of the plastic pipe is more than 1000 cm, at least more than three sealing rings and more than three groups of heating elements are arranged.
The noun defines:
level: a plane parallel to the horizontal plane of the earth.
Left: the left side of the combined sealing and connecting device facing the horizontally placed plastic pipes is defined as the left side.
And (3) right: the right side of the combined sealing connection device facing the horizontally placed plastic pipes is defined as the right side.
Left side: the left side of the modular sealing connection facing horizontally placed plastic pipes is defined as the left side.
Right side: the right side of the modular sealing joint facing horizontally placed plastic pipes is defined as the right side.
The plastic pipe combined sealing connection method has the remarkable characteristics and technical progress that: the technical route is designed to adopt a rubber sealing ring and heating element fusion welding double-sealing technical means, the technical effects of realizing simple process flow, ensuring sealing quality and improving the sealing performance, the compression resistance and the outer surface corrosion resistance of the plastic pipe combined sealing connecting device are achieved, and the technical purpose of realizing is to reduce the production and construction cost as much as possible and improve the economic benefit; the defects that the plastic of the inner wall and the outer wall of the joint of the pipe is cracked, water leakage occurs and the service life is shortened in the installation and use process are overcome; the technical purpose of realizing is to adopt the double sealing technical means of the fusion welding of the rubber seal ring and the heating element, so that the pipeline connection is firmer, the leakage prevention of the seal is ensured, and the construction, operation and maintenance costs of the pipe are reduced.
Drawings
Fig. 1 is a schematic sectional structure view of a combination of two sealing rings and four groups of heating elements of a sleeve of a plastic pipe combined type sealing connection device.
Fig. 2 is a cross-sectional structure diagram of the combination of four sealing rings and two groups of heating elements of the sleeve of the plastic pipe combined type sealing connection device.
Fig. 3 is a cross-sectional structure diagram of the combination of the bell and spigot semicircular sealing ring and the heating element of the plastic pipe combined type sealing connecting device.
Fig. 4 is a cross-sectional structure diagram of the combination of the rectangular sealing ring of the bell and spigot of the plastic pipe combined type sealing connecting device and the heating element.
In the figure: the heating device comprises a plastic pipe 1, a sleeve 2, a heating element 2-1, a sealing ring 2-2, a socket pipe 3 and a socket pipe 4.
Detailed Description
The patent is implemented at a construction site or workshop where a combined sealed connection method of plastic pipes is required.
The first embodiment,
Referring to the attached figure 1 of the specification, the plastic pipe four-group heating element and two sealing ring combined type sealing connecting device comprises a plastic pipe 1, a sleeve 2, a heating element 2-1 and a sealing ring 2-2; the plastic pipe comprises a socket pipe 3 and a socket pipe 4; the connection relationship of the plastic pipe combined type sealing connection device is as follows: the method comprises the steps of firstly, horizontally placing two plastic pipes 1 with the same pipe diameter to be connected, installing a sealing ring 2-2 and a heating element 2-1 on the inner wall of a connecting sleeve 2, sleeving the connecting sleeve 2 on a left plastic pipe 1, butting a right plastic pipe 1 with the left plastic pipe 1, namely butting the right end face of the left plastic pipe 1 with the left end face of the right plastic pipe 1, electrifying the heating element 2-1 on the inner wall of the sleeve 2 after butting in place, heating and melting the inner wall of the connecting sleeve 2 and the outer wall of the plastic pipe 1 by the heating element 2-1, and connecting the plastic pipes in a combined sealing manner.
The inner wall of the sleeve is provided with a sealing ring 2-2: two sealing rings 2-2 are installed.
The inner wall of the sleeve is provided with a heating element 2-1 which is: four sets of heating elements 2-1 are installed.
The heating element 2-1 is a heating wire.
Combined sealing connection method for plastic pipes
The method comprises the following steps: inspecting a plastic pipe 1, a sleeve 2, a sealing ring 2-2 and a heating element 2-1 of the plastic pipe combined type sealing connection device; after the requirement of safe production is met, the installation and connection are started;
the method comprises the following steps: cleaning the outer wall of the plastic pipe 1 and the inner wall of the sleeve 2, particularly the positions of a sealing groove and a heating element 2-1;
the method comprises the following steps: a sealing ring 2-2 and a heating element 2-1 are sequentially arranged on the inner wall of the sleeve 2;
the method comprises the following steps: the plastic pipe 1 to be installed is installed and positioned, the left side of the sleeve 2 is butted with the right side of the left end plastic pipe 1 according to the design size requirement, then the right side of the sleeve 2 is butted with the left side of the right end plastic pipe 1 according to the design size requirement,
the method comprises the following steps: checking whether the connection position meets the design requirement or not, whether the sealing ring 2-2 is installed in place or not, and enabling the heating element 2-1 to be intact;
the method comprises the following steps: determining that the sealing ring 2-2 of the connecting sleeve 2 is in place, and after the heating element 2-1 is not damaged, switching on a power supply of the heating element 2-1, and heating, melting and welding;
the method comprises the following steps: the welding quality of the melting at the connecting position of the heating element 2-1 is checked to meet the technical requirements; delivering for use; and finishing the pipeline connection installation construction.
Example II,
Referring to the attached figure 2 of the specification, the plastic pipe is a combined sealing connecting device of two groups of heating elements and four sealing rings.
The inner wall of the sleeve is provided with a sealing ring 2-2: four sealing rings 2-2 are installed.
The inner wall of the sleeve is provided with a heating element 2-1 which is: two sets of heating elements 2-1 are installed.
The rest is the same as above.
Example III,
Referring to the attached figure 3 of the specification, the plastic pipe 1 and the sleeve 2 are combined into a whole, and one end of the plastic pipe is made into a socket pipe 3 with a socket.
The inner wall of the socket pipe 3 is provided with a sealing groove for mounting a sealing ring 2-2; the socket pipe 3 is matched with the socket pipe 4, and the sealing ring 2-2 and the heating element 2-1 are arranged at the joint of the socket pipe 3 and the socket pipe 4.
The sealing ring 2-2 is a semicircular sealing ring.
The rest is the same as above.
Example four,
Referring to the specification and the attached figure 4, the socket pipe 4 is the plastic pipe 1; the socket pipe 4 is matched with the socket pipe 3, and the outer wall of the socket pipe 4 is provided with a sealing groove for mounting the sealing ring 2-2; and a sealing ring 2-2 and a heating element 2-1 are arranged at the joint of the socket pipe 3 and the socket pipe 4.
The sealing ring 2-2 is a rectangular sealing ring.
The rest is the same as above.
Claims (8)
1. The plastic pipe combined sealing connection method adopts a plastic pipe combined sealing connection device comprising a plastic pipe,
The sleeve, the sealing ring and the heating element; the plastic pipe comprises a socket pipe and a socket pipe; the method is characterized in that:
the method comprises the following steps: checking a plastic pipe, a sleeve, a sealing ring and a heating element of the plastic pipe combined type sealing connection device; comprises a socket pipe and a spigot pipe; after the requirement of safe production is met, the installation and connection are started;
the method comprises the following steps: cleaning the outer wall of the plastic pipe and the inner wall of the sleeve, particularly the positions of a sealing groove and a heating element;
the method comprises the following steps: the inner wall of the sleeve is sequentially provided with a sealing ring and a heating element;
the method comprises the following steps: the method comprises the following steps of installing and positioning a plastic pipe to be installed, butt-jointing the left side of a sleeve and the right side of a left-end plastic pipe according to the design size requirement, and butt-jointing the right side of the sleeve and the left side of a right-end plastic pipe according to the design size requirement;
the method comprises the following steps: checking whether the connection position meets the design requirement or not, and whether the sealing ring is installed in place or not, wherein the heating element is intact;
the method comprises the following steps: determining that the connecting sleeve sealing ring is in place, and switching on a power supply of the heating element after the heating element is not damaged, and heating, melting and welding;
the method comprises the following steps: checking the fusion welding quality of the connecting position of the heating element to meet the technical requirements; delivery device
Using; and finishing the pipeline connection installation construction.
2. A plastic pipe composite sealed joining method according to claim 1, characterized in that: the method is
Step three: the inner wall of the sleeve is sequentially provided with a sealing ring and a heating element, which means that the symmetrical center of the horizontal length of the sleeve is taken as the butt joint position of the plastic pipe, and the inner wall of the sleeve on the right side of the sleeve is respectively provided with at least more than one sealing ring and at least more than one group of heating elements; at least more than one sealing ring and at least more than one group of heating elements are respectively arranged on the inner wall of the sleeve on the left side of the sleeve.
3. A plastic pipe composite sealed joining method according to claim 1, characterized in that: the method is
Step two: cleaning the outer wall of the plastic pipe and the inner wall of the sleeve, particularly the positions of a sealing groove and a heating element;
the plastic pipe and the sleeve are combined into a whole, and one end of the plastic pipe is made into a socket pipe with a socket.
4. A plastic pipe composite sealed joining method according to claim 1, characterized in that: the plastic
The pipe is a plastic flat-mouth pipe, namely an opening pipe.
5. A plastic pipe composite sealed joining method according to claim 3, characterized in that: the socket
The inner wall of the pipe is provided with a sealing groove for mounting a sealing ring and a heating element; at least more than one sealing ring and more than one group of heating elements are arranged, and the socket pipe is in butt joint and matched connection with the socket pipe.
6. A plastic pipe composite sealed joining method according to claim 3, characterized in that: the method is
Step two: the plastic pipe is used as a socket pipe; the outer wall of the socket pipe is provided with a sealing groove for mounting a sealing ring and a heating element; at least more than one sealing ring and more than one group of heating elements are arranged, and the socket pipe is in butt joint and matched connection with the socket pipe.
7. A plastic pipe composite sealed joining method according to claim 1, characterized in that: the sleeve
The inner wall is provided with a sealing ring and a heating element, which means that at least more than one sealing ring and more than one group of heating elements are arranged when the nominal pipe diameter of the plastic pipe is 30-1000 cm.
8. A plastic pipe composite sealed joining method according to claim 1, characterized in that: the sleeve
The inner wall is provided with a sealing ring and a heating element, which means that when the nominal pipe diameter of the plastic pipe is more than 1000 cm, at least more than two sealing rings and more than two groups of heating elements are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932110.4A CN110657305A (en) | 2019-09-29 | 2019-09-29 | Combined sealing connection method for plastic pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932110.4A CN110657305A (en) | 2019-09-29 | 2019-09-29 | Combined sealing connection method for plastic pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110657305A true CN110657305A (en) | 2020-01-07 |
Family
ID=69039804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910932110.4A Pending CN110657305A (en) | 2019-09-29 | 2019-09-29 | Combined sealing connection method for plastic pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110657305A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111976152A (en) * | 2020-07-29 | 2020-11-24 | 嵊州市康裕钢塑复合管厂 | Assembling and composite welding method based on pipe fitting and metal plastic composite pipe |
| CN112228664A (en) * | 2020-09-23 | 2021-01-15 | 云南傲远智能环保科技有限公司 | Double-crest socket pipe rubber ring hot melting connection method |
| CN112344118A (en) * | 2020-10-27 | 2021-02-09 | 贵州昊华中意环保设备有限公司 | Combined sealing butt joint method for equal-diameter glass fiber reinforced plastic sand inclusion pipe |
| CN114251532A (en) * | 2021-12-08 | 2022-03-29 | 华创天元实业发展有限责任公司 | Novel reinforced electric hot melting belt and connection mode for connecting novel reinforced electric hot melting belt with plastic pipeline |
| CN117020558A (en) * | 2023-09-19 | 2023-11-10 | 威海泉源园林建设有限公司 | Energy-saving heating pipeline construction equipment for building |
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| CN202040472U (en) * | 2011-05-09 | 2011-11-16 | 徐焕松 | Electromagnetic fusion connection structure of plastic pipe |
| CN206369041U (en) * | 2017-01-05 | 2017-08-01 | 四川煌盛管业有限公司 | Improved closed type electric melting pipe fittings |
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| NL7714395A (en) * | 1977-02-03 | 1978-08-07 | Rhein Plastic Rohr Gmbh | Pipe socket with internal sealing ring - providing a flexible joint which obviates reinforcement; thus reducing cost |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111976152A (en) * | 2020-07-29 | 2020-11-24 | 嵊州市康裕钢塑复合管厂 | Assembling and composite welding method based on pipe fitting and metal plastic composite pipe |
| CN112228664A (en) * | 2020-09-23 | 2021-01-15 | 云南傲远智能环保科技有限公司 | Double-crest socket pipe rubber ring hot melting connection method |
| CN112344118A (en) * | 2020-10-27 | 2021-02-09 | 贵州昊华中意环保设备有限公司 | Combined sealing butt joint method for equal-diameter glass fiber reinforced plastic sand inclusion pipe |
| CN114251532A (en) * | 2021-12-08 | 2022-03-29 | 华创天元实业发展有限责任公司 | Novel reinforced electric hot melting belt and connection mode for connecting novel reinforced electric hot melting belt with plastic pipeline |
| CN117020558A (en) * | 2023-09-19 | 2023-11-10 | 威海泉源园林建设有限公司 | Energy-saving heating pipeline construction equipment for building |
| CN117020558B (en) * | 2023-09-19 | 2024-01-23 | 威海泉源园林建设有限公司 | Energy-saving heating pipeline construction equipment for building |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20200107 |