A drop arrester for oil field

Abstract

The invention discloses a drop-type arrester for oil fields, which relates to the field of oil exploitation, and comprises an insulating support, a main body of the arrester, a mounting plate, and a conductive voltage plate. The bottom of the insulating support is connected to the bottom of the main body of the arrester through the mounting plate. The top of the arrester body is connected to the top of the arrester body through a conductive plate, the bottom of the arrester body is rotatably connected to the mounting plate and is provided with a disengager, the top outside of the arrester body is provided with a pull ring assembly, and the insulating support Near the top is provided with a push-off mechanism, the push-off mechanism includes a mounting shell, an electromagnetic tripping mechanism, a push-off lever and a push-off spring, the push-off lever is slidably connected to the installation shell, and the push-off lever One end protruding from the mounting shell is close to or against the upper inner surface of the arrester body, the push-off spring always exerts an elastic force on the push-off rod toward the arrester body, and the electromagnetic tripping mechanism is connected with the arrester body. The disconnectors are connected in parallel or in series.

Description

technical field [0001] The invention relates to the field of oil exploitation, in particular to a drop arrester for oil fields. Background technique [0002] The drop-out arrester is a distribution-type zinc oxide arrester that is skillfully installed on the drop-out mechanism of the drop-out fuse after refitting, so that the arrester can be easily detected and repaired with the help of the insulating pull-up lever when the power supply is not interrupted. with replacement. [0003] The existing drop arrester is equipped with a disconnector, as shown in the invention patent with the notification number CN105680404, the disconnector is a thermal explosion disconnector or a thermal melt disconnector, and the disconnector moves quickly when there is a power frequency short-circuit current , so that the components of the arrester fall down to realize the automatic disengagement of the arrester. [0004] However, there are many potential safety hazards when this kind of arreste...

AI Technical Summary

Problems solved by technology

[0004] However, there are many potential safety hazards when this kind of arrester is used in the field of oil and gas exploitation. Since the drop arrester in the oil field is usually installed outdoors, and its detachment method is to drop and detach through the gravity of the main body of the arrester itself, in the perennial outdoor environment The main body of the arrester and the conductive plate are inevitably corroded. When the disconnector is working, occasionally the top of the main body of the arrester is too tightly combined with the conductive plate and cannot be separated quickly, which will lead to more serious subsequent joint problems.

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