Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for thawing electric heating type water tube

An electric heating, water pipe technology, applied in pipeline systems, mechanical equipment, gas/liquid distribution and storage, etc., to achieve the effect of wide application range, simple process and fast heating speed

Inactive Publication Date: 2008-07-23
赵兴玉
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Above-mentioned method can only be to the local heating that is exposed on the earth's surface

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for thawing electric heating type water tube
  • Method for thawing electric heating type water tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 , an electrothermal water pipe thawing method, it comprises the following process steps:

[0027] Step a: Select the BX1-315 arc welding transformer as the power supply, and the input terminal 1 is connected to a 380V or 220V power supply;

[0028] Step b: Lead out four taps 3 from the secondary coil 2 of the transformer, so that the no-load voltages of the four taps reach 10V, 20V, 30V, and 40V respectively;

[0029] Step c: In the environment of -10°C, select a steel frozen water pipe 6 with a length of 30 m and a pipe diameter of 25 mm, and determine the load resistance of the frozen water pipe;

[0030] Step d: According to the load resistance of the water pipe, determine the current intensity to be 400A;

[0031] Step e: derusting both ends of the heated water pipe to see new ones, and then connecting one end of the wire 5 to the voltage output terminal 2, and the other end is fixedly connected to both ends of the water pipe 6;

[0032] Step f: ...

Embodiment 2

[0038] Such as figure 2 , an electrothermal water pipe thawing method, it comprises the following process steps:

[0039] Step a: use DN-50-1 type spot welding machine, its input terminal 7 is connected to a power supply, and a frozen water pipe 11 with a length of 20m and a pipe diameter of 100mm is selected in an environment of -10°C;

[0040] Step b: Derusting both ends of the heated water pipe to see new ones, and then connecting one end of the wire 10 to the output end 8 of the welding resistance transformer of the spot welding machine, and the other end is fixedly connected to both ends of the water pipe 11;

[0041] Step c: Turn on the switch 9, turn on the power supply, heat for 30 minutes, and the temperature of the water pipe rises from -10°C to 2°C.

[0042] Embodiment 2 details

[0043] Can be used as resistance welding machine spot welding machine, projection welding machine, seam welding machine, butt welding machine etc. used as the embodiment of the present ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an electrothermal water pipe defrosting method, which is characterized in that the defrosting method either transforms an arc welding transformer, an arc welding rectifier or a direct current arc welding generator, or adopts a resistance welder directly; when a tube is heated, the positive and the negative electrodes are fixed to the both ends of the heated tube; then the power is switched on; then the output voltage is regulated until the current intensity reaches the required numerical value; due to the low voltage and high current, the electrothermal water pipe defrosting method has the advantages of safety, reliability and apparent heating effect regardless of overground or underground, small diameter or large diameter, short or long water pipes. For instance, a internally frozen drinking-water pipe with the external diameter of 25mm and the length of 30 m is connected with 400 A current below negative ten DEG C and electrified for 50 minutes, the temperature in the pipe rises to 2 DEG C, that is, 12 DEG C is increased.

Description

technical field [0001] The invention relates to an electric heating type water pipe thawing method. Background technique [0002] In most parts of northern my country, there is a freezing period of 1-5 months. During the freezing period, the problems of freezing in water pipes, heating pipes, and sewage pipes have affected the production and life of residents. Yet the measure of thawing that takes at present is generally: water with hot water or bake with fire. Chinese patent discloses a kind of utility model patent: running water pipeline heater, notification number is CN2414335Y, and it is to utilize electric heating wire to be installed in the corresponding semicircular arc-shaped heating tile of running water pipe, be fixed on the pipeline peripheral energization heating. Above-mentioned method can only be to the local heating that is exposed on the earth's surface. Frozen pipes buried underground or over long distances are helpless. Contents of the invention [000...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/00
Inventor 赵兴玉
Owner 赵兴玉