CN2238516Y

CN2238516Y - Non-corroding electrothermal pipe

Info

Publication number: CN2238516Y
Application number: CN 95236605
Authority: CN
Inventors: 杨浚
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-17
Filing date: 1995-04-17
Publication date: 1996-10-23
Anticipated expiration: 2005-04-17

Abstract

The utility model discloses a non-corroding electrothermal pipe. The casing pipe of the heating body of the utility model is made of a polytetrafluoroethylene material, and has the performance of resisting a strong corrosive, inadhesion and preventing the surface from producing dirt. A radiator made of a ceramic material is compact arranged between an electric heating wire and the heating body, and the radiator has favorable insulation performance. In addition, when burnt, the electric heating wire can be replaced very conveniently, and the electrothermal pipe can be used a plurality of times.

Description

The anti-corrosion electric heat pipe

The utility model relates to a kind of anti-corrosion electric heat pipe.

At present, be used for electrothermal tube on the market to the heating of corrosivity working media, its heater sleeve pipe tubing is anticorrosive materials such as stainless steel, titanium, quartz glass, but equal hydrofluoric acid resistants not, the corrosion of highly corrosive agents such as caustic soda, simultaneously, in heating process, the electrothermal tube outer wall easily forms schmutzband, not easy-clear, influence heat exchange efficiency, even cause because of incrustation is blocked up that electrothermal tube is overheated to be burnt out.In recent years, the produced electrothermal tube of a kind of metal tube outer wall spraying polytetrafluorethylepowder powder layer of some producer because polytetrafluoroethylene (being commonly called as the plastics king) has good anti-deep-etching performance, thereby has prolonged the useful life of electrothermal tube.But, because the polytetrafluoroethylene sprayed coating is because of technological reason, have micropore inevitably, it is inner to cause Korrosionsmedium to infiltrate, corroding metal tube wall and electrothermal tube is burnt out.Simultaneously,, in heating process, come off, make the metal tube surface exposure and cause corrosion damage because of thermal expansion makes the sprayed coating peeling because the thermal coefficient of expansion of polytetrafluoroethylene and metal pipe material is different.And all at present electrothermal tubes all adopt in the pipe heating wire placed in the middle, and filling magnesia powder between heating wire and inside pipe wall is the version of insulating barrier, heating wire once aging burning then can't repair, so existing electrothermal tube is disposable product.

The purpose of this utility model is to provide a kind of agent of being able to bear strong corrosion, and surperficial non-scaling can be changed the nonexpondable electrothermal tube of heating wire.

The purpose of this utility model can realize by following measure:

A kind of by nipple (1), spacer shell (2), binding post sleeve pipe (3), the electrothermal tube that heater sleeve pipe (4) and heating wire (6) are formed is characterized in that: the heater sleeve pipe is made with polytetrafluoroethylmaterial material, and its internal diameter is φ 10-φ 14mm, wall thickness is 0.5-0.8mm, closely arranging radiator (5) between heater sleeve pipe (4) and heating wire (6), radiator (5) is the ceramic ring made from ceramic material, and its external diameter is φ 10-φ 14mm, wall thickness is 1-3mm, and length is 10-20mm.

The utility model contrast prior art has the following advantages:

At first be that the heater pipe box adopts the polytetrafluoroethylmaterial material manufacturing, because polytetrafluoroethylene has anti-highly corrosive agents performance, and viscosity is outstanding on the surface, so this kind electrothermal tube was both corrosion-resistant, dirt is not tied on the surface again, prolonged useful life, in addition, because the radiator that has adopted pottery to make between heater sleeve pipe and the heating wire, insulation property are good especially, and can change easily after heating wire burns, only need old heating wire is extracted out from radiator, fill in new heating wire and get final product.

The drawing of accompanying drawing is described as follows:

Fig. 1 is an anti-corrosion electric heat pipe outside drawing

Claims

1, a kind of anti-corrosion electric heat pipe, form by nipple (1), spacer shell (2), binding post sleeve pipe (3), heater sleeve pipe (4) and heating wire (6), it is characterized in that: heater sleeve pipe (4) is made with polytetrafluoroethylmaterial material, its internal diameter is φ 10-φ 14mm, wall thickness is 0.5-0.8mm, between heater sleeve pipe (4) and heating wire (6), closely arranging radiator (5), radiator (5) is the ceramic ring made from ceramic material, its external diameter is φ 10-φ 14mm, wall thickness is 1-3mm, and length is 10-20mm.