A protective cover for a transformer respirator

Abstract

The invention discloses a protective cover for a transformer respirator, which comprises an upper tightening part and a lower tightening part arranged in parallel, and several connecting part groups are vertically arranged between the upper tightening part and the lower tightening part; The distance from the top of the upper tightening part to the bottom of the lower tightening part is greater than the height of the glass cylinder of the transformer respirator; the length of the upper tightening part is smaller than the outer diameter of the glass cylinder; upper fixing holes are respectively provided at both ends of the upper tightening part , the plastic buckle passes through the upper fixing hole to fasten the upper fastener on the upper end of the glass cylinder; the two ends of the lower fastener are respectively provided with lower fixing holes, and the plastic fastener passes through the lower fixing hole to fasten the upper fastener at the bottom of the glass cylinder. The invention adopts a rubber elastic structure, which can be installed and used on most existing respirators without changing any structure of the original respirator, and the structure of dividing the glass cylinder into three equal parts can solve the discoloration of silica gel between the maintenance unit and the overhaul unit amount of pointless disputes.

Description

technical field [0001] The invention belongs to the technical field of transformers in the electric power industry, and in particular relates to a protective cover for a transformer respirator. Background technique [0002] Respirator, also known as moisture absorber, is a safety protection device for oil-immersed power transformers. It is filled with adsorbents such as color-changing silica gel to absorb moisture that enters the plastic bags and diaphragms of the oil conservator in the air to ensure that it does not enter the oil conservator. air dry. At present, the sealing structure of most transformers and on-load pressure regulating breathing apparatus silicone tanks is: the upper and lower flanges are pressed tightly with the glass cylinder through the middle long screw rod, and the sealing ring is used to ensure the tightness of the tank body at the junction of the upper and lower flanges and the glass cylinder. . However, after the tank is exposed to the sun and ra...

AI Technical Summary

Problems solved by technology

However, after the tank is exposed to the sun and rain for a long time outdoors, the sealing ring is very easy to age and lose its elasticity, causing water vapor in the air to enter the tank and make the silica gel damp. It is necessary to replace the silica gel frequently to ensure the effectiveness of the respirator. Or remote towns, greatly increasing the workload of maintenance personnel

Transformer maintenance regulations stipulate that when the color-changing silica gel reaches 1 / 3, the on-duty personnel should notify the maintenance personnel to replace it. At present, there is no clear scale on the glass tube body of the respirator, which often causes operation and maintenance personnel and maintenance personnel to check whether the discoloration of silica gel exceeds the standard. A dispute occurred, so a technical solution was urgently needed on site to solve the above problems

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