Temperature-sensitive indication nut

Abstract

The invention discloses a temperature-sensitive indication nut, comprising a pedestal, a temperature-sensitive element and an induction column. The pedestal is provided with a cylindrical storage slot with an opening in the top. An inner wall of the storage slot is provided with clamp grooves. The induction column is mounted in the storage slot. An outer wall of the induction column is provided with clamp claws cooperated with the clamp grooves. The induction column has a hollow cylindrical structure which is open at the lower end and closed at the top. The induction column is internally provided with the temperature-sensitive element. The temperature-sensitive indication nut is reasonable in design and simple in structure. The temperature-sensitive indication nut is mounted at a position, in need of temperature detection, of power equipment. The shape memory effect of shape memory alloy is utilized to timely monitor the temperature of a power line joint, thereby helping inspection persons to timely find the power line joint, and further grasping change in temperature of the power line joint. Therefore, potential safety hazards of system operation are eliminated, and the normal operation of system equipment is ensured.

Description

technical field [0001] The invention relates to the field of electric equipment, in particular to a temperature-sensing indicating nut. Background technique [0002] With the increase of power transmission, transformation, and distribution equipment, the connection parts of the equipment are becoming more and more complex and diverse. Due to the influence of factors such as changes in the operating environment load and construction technology, the connection parts of power equipment are prone to local heating and high temperature safety hazards. The length of the line makes it difficult to detect the high temperature of the connection part without professional equipment and wastes a lot of manpower and material resources. Once the equipment is damaged due to heat and high temperature, it will cause a large-scale power outage and a huge loss. However, there are a large number of power equipment and long line connections. How to prevent heat generation and find out the proport...

AI Technical Summary

Problems solved by technology

However, sometimes the color of phase-colored paint does not change much, which can easily cause misjudgment, so the method of color-painted paint is seldom used.

3 Infrared laser temperature measurement method is expensive, not conducive to popular use, temperature measurement is not accurate, its own measurement has errors, the operation is technically strong, and there will be large errors if there is a slight jitter. It is relatively passive and needs to be measured on time, which is inconvenient to find in time question

Therefore, there is no such simple and effective temperature detection and alarm device applied in the power system at present.

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