A temperature-sensitive indicator nut

Abstract

The invention discloses a temperature-sensing indicating nut, which comprises a base, a temperature-sensing element and an indicating column; the base is provided with a cylindrical accommodating groove with an open top; the inner wall of the accommodating groove is provided with a card slot, The indicating column is installed in the accommodating groove, and the outer wall of the indicating column is provided with a claw that cooperates with the slot; the indicating column is a hollow cylindrical structure with an open lower end and a closed top. The temperature sensing element is installed inside the indicating column. The invention is reasonable in design and simple in structure. It is installed at the place where the electric equipment needs to detect the temperature, and the temperature of the contact point of the transmission line can be monitored in real time by using the shape memory effect of the shape memory alloy. , Eliminate the hidden dangers of system operation and ensure the normal operation of system equipment.

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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