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Combined sealing connecting method for plastic pipes

A connection method and technology for plastic pipes, which are applied in the direction of pipe connection layout, pipe/pipe joints/pipe fittings, machinery and equipment, etc., can solve the problems of shortened service life, long construction time and low economic benefits.

Inactive Publication Date: 2020-01-07
谭连平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The flange connection adopts a mechanical method. Usually, the material of the flange is cast iron, alloy, etc., which are used to fasten plastic parts. The expansion or contraction coefficients are different, the connection quality is not high, but the cost is relatively high.
[0006] The disadvantages of the above-mentioned connecting device or method are that the construction site is inconvenient, the construction time is long, the economic benefit is low, the connection quality cannot be guaranteed, and the service life is shortened.

Method used

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  • Combined sealing connecting method for plastic pipes
  • Combined sealing connecting method for plastic pipes
  • Combined sealing connecting method for plastic pipes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] See attached figure 1 , four sets of heating elements of plastic pipes and two sealing rings combined sealing connection device, the plastic pipe combined sealing connection device includes plastic pipe 1, casing 2, heating element 2-1, sealing ring 2-2; the plastic The pipe includes a socket pipe 3 and a socket pipe 4; the connection relationship of the plastic pipe combined sealing connection device is: first place two plastic pipes 1 of the same diameter to be connected horizontally, and then install the connecting sleeve 2 on the inner wall Install the sealing ring 2-2 and the heating element 2-1, then put the connecting sleeve 2 on the left plastic pipe 1 first, and then connect the right plastic pipe 1 with the left plastic pipe 1, that is, the right end surface of the left plastic pipe 1 and the right The left end face of the plastic pipe 1 is docked, and after the docking is in place, the heating element 2-1 on the inner wall of the casing 2 is energized, and th...

Embodiment 2

[0051] See attached figure 2 , Two sets of heating elements of plastic tubes and four sealing rings combined sealing connection device.

[0052] The sealing ring 2-2 installed on the inner wall of the casing is: four sealing rings 2-2 are installed.

[0053] The installation of the heating element 2-1 on the inner wall of the casing means: installing two sets of heating elements 2-1.

[0054] The rest is the same as above.

Embodiment 3

[0056] See attached image 3 , the plastic pipe 1 and the sleeve pipe 2 are combined into one, and one end of the plastic pipe manufactured is a socket pipe 3 with a socket.

[0057] The inner wall of the socket pipe 3 is provided with a sealing groove for installing the sealing ring 2-2; the socket pipe 3 is matched with the socket pipe 4, and the sealing ring 2-2 is installed at the junction of the socket pipe 3 and the socket pipe 4 and heating element 2-1.

[0058] The sealing ring 2-2 is a semicircular sealing ring.

[0059] The rest is the same as above.

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PUM

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Abstract

The invention discloses a combined sealing connecting method for plastic pipes and belongs to the technical field of plastic pipes. Two plastic pipes, needing to be connected, with the same pipe diameter are horizontally placed; then the inner wall of a connecting casing pipe is provided with a sealing ring and a heating element; then the connecting casing pipe is firstly sleeved with the left plastic pipe, and then the right plastic pipe is in butt joint with the left plastic pipe; and then the heating element is electrified and melts the inner wall of the connecting casing pipe and the outerwalls of the plastic pipes in a heating manner. A rubber sealing ring and heating element melting and welding double-sealing technological means is adopted, pipeline connection is firmer, sealing isensured, and leakage is avoided; and the combined sealing and connecting method is widely applied to the fields of civic building water supply and drainage, gas and industrial pipelines and the like.

Description

technical field [0001] The invention relates to the technical field of plastic pipes, in particular to a sealing ring sealing and fusion welding combined connection method for plastic pipes. Background technique [0002] Plastic pipe, with the development of chemical industry technology, can now produce non-toxic grade pipe, so it has the performance of general polyvinyl chloride, and added some excellent performance, specifically, it has good corrosion resistance and flexibility Advantages, so it is especially suitable for water supply and drainage pipe network. [0003] Existing plastic pipe connection methods mainly include plastic welding, flange connection and the like. [0004] Plastic welding refers to a connection method in which the contact surfaces of two plastic parts are melted at the same time by heating, so that they are combined into a whole. Plastic welding techniques in the prior art include hot plate welding, hot air welding, hot rod and pulse welding, et...

Claims

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Application Information

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IPC IPC(8): F16L47/02F16L47/06F16L47/08
CPCF16L47/02F16L47/065F16L47/08
Inventor 代志春谭连平
Owner 谭连平
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