阅读说明：本技术 变电站机构箱凝露报警感应板 (Condensation alarm induction plate for mechanism box of transformer substation ) 是由 张源 吴鹏 阮法 李永虹 成诚 郑小立 马小军 师涛 于 2019-01-16 设计创作，主要内容包括：本发明涉及一种湿度传感器,具体涉及一种应用于国家电网系统内的变电站机构箱凝露报警感应板,包括单板凝露传感器,所述单板凝露传感器由铝基板构成,在所述铝基板的表面设有氧化绝缘层,在所述氧化绝缘层上设有迷宫型电路。本发明变电站机构箱凝露报警感应板采用具有良好的温度特性和亲水性的大面积铝基板构成,在电控柜内工作时具有良好的温度特性和亲水性,保证了在实际应用中的表面可靠结露,克服了传统玻璃钎维基板的传感器表面温度高、亲水性不佳的问题。铝基板表面氧化处理形成的氧化绝缘层以及在氧化绝缘层上设有迷宫型电路,能够能够保证报警的及时性及可靠性,以确保变电站的安全使用。(The invention relates to a humidity sensor, in particular to a condensation alarm induction plate of a substation mechanism box applied to a national power grid system. The condensation alarm sensing plate of the substation mechanism box is formed by a large-area aluminum substrate with good temperature characteristic and hydrophilicity, has good temperature characteristic and hydrophilicity when working in an electric control cabinet, ensures reliable condensation on the surface in practical application, and solves the problems of high temperature and poor hydrophilicity of the surface of a sensor of the traditional glass fiber substrate. The oxidation insulating layer formed by oxidation treatment of the surface of the aluminum substrate and the labyrinth circuit arranged on the oxidation insulating layer can ensure the timeliness and reliability of alarming so as to ensure the safe use of the transformer substation.)

1. Transformer substation's mechanism case condensation warning tablet, including veneer condensation sensor (1), its characterized in that: the single-plate condensation sensor (1) is composed of an aluminum substrate (2), an oxidation insulation layer (3) is arranged on the surface of the aluminum substrate (2), and a labyrinth circuit (4) is arranged on the oxidation insulation layer (3).

Technical Field

The invention relates to a humidity sensor, in particular to a condensation alarm induction plate of a substation mechanism box, which is applied to a national power grid system.

Background

With the development of national economy and the rapid promotion of intelligent power grids, the transformer substation is used as the backbone of the national power grid core, and the safe operation of equipment is more important. The national requirements for safe operation of power grid substations are increasing. There are a large number of primary and secondary equipment operating mechanism boxes and terminal boxes in a substation. Condensation and water accumulation phenomena exist in the box bodies of the operating mechanisms due to various reasons (temperature and humidity of the environment of the transformer substation changes, on-site precipitation, accumulated snow, cable trench water accumulation and the like) in different degrees. The condensation refers to the phenomenon of water drop condensation on the surface of the inner wall when the temperature of the surface of the inner wall of a primary and secondary equipment box and a cabinet body of the transformer substation is reduced to be lower than the dew point temperature. Whether condensation occurs depends on the ambient temperature, the temperature inside the cabinet, the relative humidity and the dew point temperature.

The harm of condensation generated inside the mechanism box is as follows:

dew formed on a terminal row in the mechanism box easily causes AC/DC short circuit grounding, motor burning loss and switch misoperation; dew formed on the switch operating mechanism can corrode metal parts in the mechanism, so that corrosion of equipment is accelerated, and even the mechanism is jammed due to rust; most of porcelain bottles in the mechanism box do not consider waterproofness, and the phenomenon of creepage or flashover can be caused if condensation exists on the porcelain bottles, so that accidents are easy to happen.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a safe and reliable condensation alarm induction plate for a substation mechanism box, which has high sensitivity.

In order to solve the technical problems, the invention adopts the following technical scheme:

substation mechanism case condensation warning induction plate, including the veneer condensation sensor, the veneer condensation sensor comprises aluminium base board the surface of aluminium base board is equipped with the oxidation insulation layer be equipped with labyrinth type circuit on the oxidation insulation layer.

Compared with the prior art, the invention has the beneficial effects that:

the condensation alarm sensing plate of the substation mechanism box is formed by a large-area aluminum substrate with good temperature characteristic and hydrophilicity, has good temperature characteristic and hydrophilicity when working in an electric control cabinet, ensures reliable condensation on the surface in practical application, and solves the problems of high temperature and poor hydrophilicity of the surface of a sensor of the traditional glass fiber substrate. The oxidation insulating layer formed by oxidation treatment of the surface of the aluminum substrate and the labyrinth circuit arranged on the oxidation insulating layer can ensure the timeliness and reliability of alarming so as to ensure the safe use of the transformer substation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of the side view of the structure of the present invention.

Detailed Description

Referring to the attached drawings 1 and 2, the condensation alarm induction plate of the substation mechanism box comprises a single-plate condensation sensor 1, wherein the single-plate condensation sensor 1 is composed of an aluminum substrate 2, an oxidation insulation layer 3 is arranged on the surface of the aluminum substrate 2, and a labyrinth circuit 4 is arranged on the oxidation insulation layer 3. The condensation alarm sensing plate of the substation mechanism box is formed by the large-area aluminum substrate 2 with good temperature characteristic and hydrophilicity, has good temperature characteristic and hydrophilicity when working in an electric control cabinet, ensures reliable surface condensation in practical application, overcomes the problems of high surface temperature and poor hydrophilicity of a sensor of a traditional glass fiber substrate, and realizes reliable condensation. The oxidation insulating layer formed by oxidation treatment on the surface of the aluminum substrate 2 and the labyrinth circuit 4 arranged on the oxidation insulating layer 3 can ensure the timeliness and reliability of alarming so as to ensure the safe use of the transformer substation.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, so that any person skilled in the art can make changes or modifications to the equivalent embodiments using the above disclosure. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are still within the protection scope of the present invention, unless they depart from the technical spirit of the present invention.