VE49型呼吸器

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商品名称： VE49型呼吸器

商品详细介绍

VE49（5kg)呼吸器

概述

空气吸湿器是含有纯化学硅盐（硅胶）、带彩色指示器的的透明空心油缸筒。由于油量的热收缩作
用，变压器内部吸入的空气会通过硅胶。硅胶吸收湿气，并通过改变颜色显示饱和度，过程如下：
•   黄色、橙色----- 硅胶完全干燥
•   淡黄色 ----------硅胶部分潮湿
•   白色 ------------ 硅胶湿度饱和
吸湿器中的盐饱和时，可以很方便地取出，可在120° - 150°C的通风炉中加热再生，直到颜色恢复
为橙色。
硅胶的特性是吸湿能力极强。在盐吸收水分达到其重量15%之前这一特性极为明显，当吸收水分达
到其重量30－40%时，达到湿度饱和。

技术性能

上下部为无孔抗腐蚀铝合金铸件制造。空心圆柱筒是用胶质玻璃制作，由不锈钢筒保护。钢筒留有
供直接观察硅胶颜色的观察窗。吸湿器底部装有液压阀，以防空气与硅胶连续接触，只有当变压器
内部压力过小或过大时才允许空气穿过两个方向（入口和出口）。

干燥器的气道压力值为：
0.003 kg/cm2 (入口)或者 0.005 kg/cm2 （出口）

空心容器及液压阀由一块带复杂系统的钻孔板分隔，它即可将入口空气均匀扩散，又可避免
盐粉对封闭系统造成损坏。

AIR DEHYDRATING BREATHERS-TYPE VE49(5kg)

GENERAL INFORMATION

Air dehydrating breathers are transparent hollow cylinder tubes which contain chemically pure silicium salt (silicagel) with coloured indicator. The air breathed inside the transformer due to the thermal contraction of the oil mass, passes through the silicagel. The silicagel absorbs the humidity, indicating the saturation degree by changing colour as follows:
• ORANGE----silicagel completely dry
• WHITE ------silicagel saturated with humidity
The salt contained in the breather, when saturated, may be easily removed and regenerated by heating it, inside a ventilated oven, at 120° - 150°C, until the colour becomes orange again. The specific property of the silicagel is its high absorption power of humidity.
This is total until the salt has absorbed water for about 15% of its weight, and saturation is reached when the salt has absorbed water for 30 to 40 % of its weight.

GENERAL INFORMATION

The upper and lower parts are made in a non-porous corrosion-proof aluminium alloy casting. The hollow cylinder is made of Plexiglas (upon demand in glass) and it is protected by a stainless steel cylinder, with windows which allow the visual control of the silicagel colour. In the bottom side of the breather, an hydraulic valve prevents continuos air contact with the silicagel and allows the air to pass in both direction (inlet or outlet) only when there is pressure deficiency or excess inside the transformer.

Pressure values for air passage into the dehumidifier are:
0.003 kg/cm2 inlet , or 0.005 kg/cm2 outlet

The hollow container and the hydraulic valve are separated by a drilled plate with a labyrinth system, which have the double purpose of diffusing inlet air uniformly, and of avoiding that any salt dust may damage the closing system.