Interlayer insulator for converter valve tower and mandril core

Abstract

The invention provides an interlayer insulator mandril core for a converter valve tower. The mandril core comprises a mandril core body; threads are formed at one end of the mandril core body to form a mandril core thread rod; or threads are formed at the two ends of the mandril core body to form two mandril core thread rods. In addition, the mandril core also includes a metal connecting end connected with the mandril core thread rod; the metal connecting end includes a pull rod and a turnbuckle; a thread is formed at one end of the pull rod to form a pull rod thread rod; and the mandril core thread rod matches the turnbuckle and can be screwed into the turnbuckle from the other end of the turnbuckle. When the turnbuckle rotates, the length of the metal connecting end can be adjusted, thereby realizing fine tuning of the length of the interlayer insulator mandril core for a converter valve tower. In addition, the invention also discloses an interlayer insulator for a converter valve tower. According to the invention, when a converter valve is installed, fine tuning of the length of the interlayer insulator for a converter valve tower can be realized, so that forces exerted on all insulators for converter valve towers become uniform.

Description

Technical field [0001] The invention belongs to the field of high-voltage direct current transmission, and particularly relates to an interlayer insulator and rod core for a converter valve tower. Background technique [0002] The structure of the high-voltage direct current converter valve valve tower basically adopts the suspension type and flexible shock-proof structure design: the valve layers of the valve tower are assembled by multiple interlayer insulators, and the interlayer insulators are fixed on the upper by ordinary bolts. , On the channel steel in the lower valve layer frame, due to the difference in the length of the interlayer insulators, the insulator installation will be more difficult. At present, the length of the interlayer insulators is adjusted in disguise by adding or subtracting spacers on the frame base, thus making the installation The interlayer insulators between the subsequent valve layers bear uniform force. Although this method is feasible, it takes...

AI Technical Summary

Problems solved by technology

[0002] The structure of the valve tower of HVDC converter valve basically adopts suspension type and flexible anti-shock structure design: the valve layers of the valve tower are assembled by multiple interlayer insulators, and the interlayer insulators are fixed on the upper layer by ordinary bolts. 1. On the channel steel in the frame of the lower valve layer, due to the differences in the lengths of the interlayer insulators, the installation of the insulators will be more difficult. The interlayer insulators between the final valve layers are evenly stressed. Although this method is feasible, it is time-consuming and laborious to install.

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