262 results about "Valve hall" patented technology

The invention discloses a shield ball fitting for a converter station valve hall. The shield ball fitting comprises a spherical shell formed by butt-connecting an upper shield hemisphere and a lower shield hemisphere. A middle ring peripherally extending along a butt connection interface is arranged at the butt connection of the inner spherical surface of the spherical shell. The middle ring is fixedly connected with the lower shield hemisphere and is detachably connected with the upper shield hemisphere. The spherical shell is formed by butt-connecting the two shield hemispheres which are assembled through the middle ring disposed at the butt connection of the inner spherical surface of the spherical shell, the process is simple, and accordingly the shield ball fitting is quite suitable for being mounted on a large-diameter tubular bus bar and is also convenient to produce on large scale.

The invention discloses a flexible direct current converter station valve hall-direct current field combined building structure. The flexible direct current converter station valve hall-direct current field combined building structure comprises a combined building chamber as well as a converter station valve hall and a direct current field which are arranged in the combined building chamber; the converter station valve hall comprises converters arranged in parallel; the direct current field comprises a direct current field pole bus as well as an arrester, a voltage measuring device, a current measuring device and a reactor which are connected with the direct current field bus; the converter station valve hall and the direct current field are arranged at different sides in the combined building chamber of which the indoor environment is micro positive voltage; a metal shielding net is laid at the wall surfaces in the combined building chamber. The combined building of the converter station valve hall and the direct current field is firstly put forward, the electric equipment configuration of the valve hall and the direct current field is unified and harmonized, the operation environment and electromagnetic interference prevention in the combined building chamber are comprehensively considered, the occupation area of a flexible direct current converter station is reduced and the soil use rate is improved; the flexible converter station direct current field is constructed indoors, so the influence of external environment to electrical equipment of the direct current field is reduced, and the reliability of the electrical equipment is improved.

The invention relates to a method for automatically monitoring water leakage of cooling water of a valve tower of a flexible straight converter valve. The method comprises the steps of firstly, takinga standard equipment heat map as a reference image, and marking a contour of a cooling water pipe component to be analyzed and judged on the reference image; secondly, collecting the current equipment infrared heat map in real time as a to-be-registered image; thirdly, matching the to-be-registered image with the reference image to determine the position range of the cooling water pipe componentin the to-be-registered image; and fourthly, calculating a maximum temperature of an area of the cooling water pipe component in each to-be-registered image of a to-be-detected area, and judging the leakage position according to a difference value between the respective maximum temperatures. With the method for automatically monitoring the water leakage of the cooling water of the valve tower of the flexible straight converter valve, the leakage state of a cooling water system inside a valve hall can be automatically and timely discovered when the patrol personnel cannot enter the interior ofthe valve hall.

The invention relates to a converter station of a maritime flexible direct current transmission system. The converter station is characterized by comprising a combined steel structure building which is transversely divided into an upper end part and a lower end part, wherein the upper end part is longitudinally divided into three electrical rooms, the middle electrical room is a direct current field, and the two electrical rooms on the two sides of the direct current field are converter valve halls; the lower end part is longitudinally divided into five electrical rooms, the middle electrical room is a converter station water-cooling equipment room which is divided into front and rear two parts by use of a cable shaft, each of the electrical rooms close to the two sides of the converter station water-cooling equipment room is longitudinally divided into front and rear end parts, each front end part of the electrical room is a control protection chamber, each rear end part of the electrical room is a storage battery chamber, and the two electrical rooms on the outermost sides are connection regions; two connection transformers are arranged at an interval on the outer side of the combined steel structure building and next to any one connection region. The converter station of the maritime flexible direct current transmission system can be widely applied to the flexible direct current transmission systems of the offshore oil platforms.

The invention relates to a modular multilevel voltage source converter, and particularly relates to the main loop design of a modular multilevel voltage source converter valve hall. The valve hall comprises a main loop which consists of a voltage equalizing ring which is taken as a through-flow loop and installed on the top of a valve tower and a fitting which is installed on the bottom of the valve tower. The fitting is connected with a bus-bar of a valve module in the valve tower and is in a range surrounded by a valve tower shielding cover. The voltage equalizing ring on the top of the valve tower is taken as the through-flow loop, which achieves a role of voltage equalization, and more importantly, greatly simplifies the bus-bar connection difficulty and saves the valuable floor space.