Mitsubishi Electric Corporation

Motohiko Kawagishi

Minoru Sato

Yoshihiro Takahashi

Masashi Fujitsuka

Yohei Ueno

Kazuhiko Kawajiri

Takaya Yamamoto

Shunkei Suzuki

Hiroshi Enomoto

Tadashi Oi

Hiroshi Maitani

Tadashi Ohi

A first circulation channel connects a first heat demand part and first supply heat exchanger with its forward route and return route. Supply and discharge channels are connected to a first heat accumulation tank, which accommodates a second heat medium heated in the first supply heat exchanger and supplied via the supply channel. A heat accumulation switching valve changes over communication of the second heat medium serving as hot heat or cold heat flowing from the first supply heat exchanger and supplied to the first heat demand part without branching to the supply channel or branching to the supply channel and supplied to the first heat accumulation tank. A heat-accumulating hot-water-supplying air conditioner operates at a first temperature when the second heat medium from the first supply heat exchanger branches to the supply channel, and at a second lower temperature when the second heat medium does not branch to the supply channel.

Heat-accumulating hot-water-supplying air conditioner

An operation plan correction unit is included which, after start of operation based on an operation plan, predicts a subsequent hot water supply load at a predetermined day on the basis of a hot water supply load result at the predetermined day, and changes a subsequent operation plan at the predetermined day generated by an operation plan generation unit, on the basis of the hot water supply load predicted again and a remaining amount of stored hot water in a hot water storage tank.

Hot water supply system

A control apparatus for a heat pump hot water supply system of the indirect heating method is provided such that a change in heat transfer efficiency of a second heat exchanger is estimated by using either or both of a tank water temperature and a temperature of a second refrigerant flowing through a water circuit. When the heat transfer efficiency is determined to be high, an operation switching unit raises an output of a heat source device. When the heat transfer efficiency is determined to be low, the operation switching unit lowers the output of the heat source device.

Hot water supply system control apparatus and hot water supply system control program and hot water supply system operating method

In a large-scale plant such as a power plant, a graphical user interface device displays a target data display screen without increasing a load of searching a screen or a load of grasping a screen transition link. An operation model-creating device reads operation manual data for operation estimation and operation history data from an operation manual managing device and an operation history managing device to create a number of pieces of manual procedure template data for each accident type. An operation predicting device selects the operation procedure template data having same conditions of immediately preceding operation history data obtained from the plant monitoring and control device to predict the next operation estimated to be performed by an operator from the selected operation procedure template data. The plant monitoring and control device displays a system recommended operation button on a monitoring screen thereof based on data of the predicted results.

On a graphical user interface providing guidance of operations in an industrial plant

An object of the invention is to provide a plant information display device which deforms and displays drawing data without hiding all pieces of information necessary for plant monitoring and plant instrument operation while visibility is not lowered. The plant information display device according to an aspect of the invention includes an input unit; a region determination unit into which an interest region and a deformation condition in a plant are fed using the input unit, the region determination unit specifying a deformation target region based on the interest region and deformation condition supplied from the input unit; a region division unit which divides a drawing into plural regions based on the deformation target region specified by the region determination unit, the region division unit performing management while the deformation target region and a non-deformation target region are divided; a drawing distortion unit which separately deforms the deformation target region and non-deformation target region in a display region; a drawing output unit; and a display unit.

Growing community of inventors

Tokyo, Japan

Motohiko Kawagishi