CN2711711Y

CN2711711Y - Multi-insulation high temperature resisting thermocouple wire

Info

Publication number: CN2711711Y
Application number: CN 200420045831
Authority: CN
Inventors: 李明斌
Original assignee: 李明斌
Current assignee: Dongguan Nissei Transmitting Technology Co., Inc.
Priority date: 2004-05-18
Filing date: 2004-05-18
Publication date: 2005-07-20
Anticipated expiration: 2014-05-18

Abstract

The utility model relates to a multi-insulation high temperature resisting thermocouple wire, comprising a positive conductive core, a negative conductive core, an inner insulation layer of the core, and an outer insulation layer of the core, and especially comprising an outmost insulation layer. The positive and the negative conductive core are the conductive wire with single core or multiple cores. The inner insulation layer of the core is divided into two layers structure to wind respectively the conductive the core. The outer insulation layers of the core wind respectively the inner insulation layer of the core. The outmost insulation layer winds the outer insulation layer of the positive and the negative conductive core. The inner and the outer insulation layer of the core and the outmost insulation layer all pass the dispose of the brushing of silicone oils, and the material is high temperature resisting glass fibre. The thermocouple wire of the utility model has the advantages of holding the triple insulation layers and having excellent heat resistance, so the utility model is suitable for the temperature measurement location of high temperature and high pressure.

Description

The high temperature resistant thermocouple wire of a kind of multiple insulation

Technical field:

The utility model relates to the high temperature resistant thermocouple wire of a kind of multiple insulation, especially as high temperature place thermometric sense line.

Background technology:

Be applicable to high temperature place thermometric sensing thermocouple wire at present, its conductor wire core outside has only double glazing fibrage layer to play insulation and heatproof effect at the most, and version is single, and in extraordinary high temperature place, heat-resisting deficiency causes thermocouple wire short serviceable life easily; And the conductor wire core insulation course is independent separately, and braid is few, and thermocouple wire easily uses through long-term, fiberglass braided loose easily, come off.

Summary of the invention:

According to the problem of above-mentioned existence, the purpose of this utility model is to provide obviously higher thermocouple wire of a kind of insulation and heat-resisting degree.

For achieving the above object, the high temperature resistant thermocouple wire of a kind of multiple insulation provided by the utility model comprises: positive and negative conductor wire core, and the inside and outside layer insulating of core also comprises the outermost layer insulation course;

Described positive and negative conductor wire core can be single core or multicore structure lead, described core inner insulation layer is for dividing double-layer structure to twine described conductor wire core respectively by clockwise and counter-clockwise direction, play double-deck basic insulation effect, and on formed core inner insulation layer, carry out the oil processing of brushing high-temperature insulation;

Described core outer insulation for compiling around layer, is compiled respectively around described core inner insulation layer, as the high temperature insulation enhancement Layer of thermocouple wire, on formed core outer insulation, carries out the oil processing of sufficient brushing high-temperature insulation;

Described outermost layer insulation course, also for compiling around layer, the outer layer insulation that it is closely compiled around described positive and negative conductor wire core plays and strengthens the effect of thermocouple wire high temperature insulation, on formed outermost layer insulation course, carries out the oil processing of sufficient brushing high-temperature insulation equally;

All winding layers of described thermocouple wire and volume all adopt the glass fiber material of corrosion-and high-temp-resistant around layer material;

As a kind of improvement of the present utility model, on the outer layer insulation basis of the positive and negative conductor wire core of thermocouple wire, twine described outermost layer insulation course again, each winding layer and volume are all carried out the oil processing of brushing high-temperature insulation around layer, can play the heat resistance of remarkable reinforcement thermocouple wire, and prolong the serviceable life of thermocouple wire;

By such scheme, make the utility model thermocouple wire have triple insulation courses, have extremely superior heat resistance, can be used on high temperature or high voltage thermometric place.

Description of drawings:

Fig. 1 is the structural diagrams of the utility model thermocouple wire

The accompanying drawing sign:

Positive and negative conductor wire core 1, the clockwise winding layer 2 of core inner insulation layer, core inner insulation layer inhour winding layer 3, core outer layer insulation braid 4, outermost layer insulation 5;

Embodiment:

In order to further specify above-mentioned purpose of the present utility model, structure and effect, embodiment of the present utility model is described below in conjunction with accompanying drawing.

Fig. 1 is the structural diagrams of the utility model thermocouple wire, comprising: positive and negative conductor wire core 1, the clockwise winding layer 2 of core inner insulation layer, core inner insulation layer inhour winding layer 3, core outer layer insulation braid 4, outermost layer insulation 5;

Positive and negative conductor wire core 1 is respectively multicore thermometric transducer wire, pass through special process, at first twine first insulation course clockwise in the periphery of described positive and negative conductor wire core 1, it is the clockwise winding layer 2 of core inner insulation layer, inhour is twined second layer insulation course again outside clockwise winding layer 2, be the counter-clockwise winding layer 3 of core inner insulation layer, form the core inner insulation layer of double-layer insulating structure; Carrying out abundant coating silicon oil on the online in-core layer insulating handles; Outside the core inner insulation layer after being coated with oil processing, closely compile coiling core outer layer insulation braid 4 more separately, on core outer layer insulation braid 4, carry out coating silicon oil again and handle; At last, outside the outer insulation 4 of two conductor wire cores, closely compile again, on formed outermost layer insulation course 5, carry out coating silicon oil equally and handle around outermost layer insulation course 5; Inside and outside layer insulating of described core and outermost layer insulation course just constitute the utility model by high temperature resistant, corrosion resistant fiberglass braided composition.

The utility model thermocouple wire, at above-mentioned multi-layer insulating structure, repeatedly coating silicon oil is handled, is especially closely compiled outside the outer insulation of two conductor wire cores behind high temperature resistant, corrosion resistant fiberglass braided layer again, insulativity, the thermotolerance of thermocouple wire are greatly improved, can be for a long time in rated voltage 300V, environment temperature are 300 ℃ working environment, use;

The utility model thermocouple wire can be widely used in the thermometric sensing place of High Temperature High Pressure.

Claims

1, the high temperature resistant thermocouple wire of a kind of multiple insulation comprises: positive and negative conductor wire core, the inside and outside layer insulating of core; Described positive and negative conductor wire core is single core or multicore cable, and described core inner insulation layer divides double-layer structure to twine described conductor wire core respectively, and described core outer insulation is compiled respectively around described core inner insulation layer;

It is characterized in that, also comprise: the outermost layer insulation course; Described outermost layer insulation course; closely compile outer layer insulation around described positive and negative conductor wire core; outermost layer braiding insulation course for thermocouple wire plays multiple heat-resisting protective effect, and described core ectonexine insulation course, outermost layer insulation course are all through the oil processing of brushing high-temperature insulation.

According to the high temperature resistant thermocouple wire of claims 1 described a kind of multiple insulation, it is characterized in that 2, described outermost layer insulation course adopts the fiberglass braided of corrosion-and high-temp-resistant.

According to claims 1 and the high temperature resistant thermocouple wire of 2 described a kind of multiple insulation, it is characterized in that 3, described core ectonexine insulation course, outermost layer insulation course are all through the oil processing of brushing high-temperature insulation, the high-temperature insulation of being brushed oil is silicone oil.