Abstract: A method for manufacturing a flavor capsule of tobacco according to an embodiment of the present disclosure may comprise: a membrane manufacturing step for manufacturing a membrane of a flavor capsule by a membrane manufacturing part that manufactures a membrane; a capsule manufacturing step for manufacturing the flavor capsule using an apparatus for manufacturing a capsule with the membrane manufactured during the membrane manufacturing step and a flavored liquid to be held in the membrane; and a hardening step for hardening the flavor capsule.

Abstract: A reservoir tank for use in a nuclear reactor building includes a reservoir tank in which cooling water is stored. A partition part is disposed in the reservoir tank and partitions the inside of the reservoir tank into a first storage tank and a second storage tank so as to separate the cooling water in the reservoir tank. An inflow part is disposed in the partition part and allows the cooling water of the second storage tank to naturally flow into the first storage tank by the difference between the water levels of the first and second storage tanks when the water level of the first storage tank is lowered. This configuration is advantageous in that a nuclear reactor does not need to be pressurized and reheated when the nuclear reactor building is cooled due to a severe accident.

Abstract: In order to provide a coolant tank for preventing a containment from being recompressed and reheated during the cooling of the containment upon occurrence of a design basis accident and a severe accident and a passive containment cooling system comprising the same, the present invention comprises: a storage tank for storing a coolant; a division part which is arranged within the storage tank and divides the inside of the storage tank into a first storage tank and a second storage tank to separate the coolant; a first heat exchanger which is extended from the storage tank to the containment and cools the containment on the basis of the coolant; and a unidirectional valve which is provided on the division part and allows the coolant of the second storage tank to be introduced into the first storage tank when the water level of the first storage tank is reduced.

Abstract: The present invention comprises: a storage tank in which cooling water is stored; a partition unit which is disposed inside the storage tank, which partitions the inside of the storage tank into a first storage tank and a second storage tank so that the cooling water can be separated and which has an inlet for causing the cooling water of the second storage tank to naturally introduce into the first storage tank according to the water level difference between the first and second storage tanks; a heat exchanger extending from the first storage tank to the inside of the reactor building to cool the reactor building based on the cooling water of the first storage tank; and a steam discharging unit connected to the heat exchanger and discharging the steam generated in the heat exchanger to the outside of the heat exchanger.

Abstract: The present invention relates to a nuclear power plant having improved cooling performance and a method for operating the same. The nuclear power plant having improved cooling performance according to the present invention comprises: a reactor vessel including a reactor core; a hot-leg and a cold-leg extending from the reactor vessel; a hybrid safety injection tank which contains coolant, is connected to the cold-leg and the reactor vessel, and is positioned higher than the reactor core; a coolant tank connected to the reactor vessel and positioned higher than the reactor core; and a pressure reducing valve connected to the hot-leg.

Abstract: The purpose of the present invention is to prevent a nuclear reactor building from being pressurized and heated again when the nuclear reactor building is cooled in the event of a severe accident. The present invention comprises: a reservoir tank in which cooling water is stored; a partition part which is disposed in the reservoir tank and partitions the inside of the reservoir tank into a first storage tank and a second storage tank so as to separate the cooling water in the reservoir tank; and an inflow part which is disposed in the partition part and allows the cooling water of the second storage tank to naturally flow into the first storage tank by the difference between the water levels of the first and second storage tanks when the water level of the first storage tank is lowered.

Abstract: In order to provide a coolant tank for preventing a containment from being recompressed and reheated during the cooling of the containment upon occurrence of a design basis accident and a severe accident and a passive containment cooling system comprising the same, the present invention comprises: a storage tank for storing a coolant; a division part which is arranged within the storage tank and divides the inside of the storage tank into a first storage tank and a second storage tank to separate the coolant; a first heat exchanger which is extended from the storage tank to the containment and cools the containment on the basis of the coolant; and a unidirectional valve which is provided on the division part and allows the coolant of the second storage tank to be introduced into the first storage tank when the water level of the first storage tank is reduced.

Abstract: The present invention relates to a passive nitrogen injecting device for a nuclear reactor coolant pump, the device comprising: a nitrogen supply unit for supplying nitrogen; a pressure control valve for controlling the supply of nitrogen from the nitrogen supply unit according to pressure; an accumulator for filling the nitrogen supplied through the pressure control valve at a set pressure, and supplying the filled nitrogen in the event that an accident involving coolant loss occurs; and an isolation valve for controlling the supply of the nitrogen from the accumulator into a seal housing of a nuclear reactor coolant pump. The present invention uses an accumulator so as to be able to supply nitrogen by using the pressure in the accumulator without the supply of external power in the event of an accident involving coolant loss, and therefore has the effect of being able to improve safety.

Abstract: The present invention relates to a passive nitrogen injecting device for a nuclear reactor coolant pump, the device comprising: a nitrogen supply unit for supplying nitrogen; a pressure control valve for controlling the supply of nitrogen from the nitrogen supply unit according to pressure; an accumulator for filling the nitrogen supplied through the pressure control valve at a set pressure, and supplying the filled nitrogen in the event that an accident involving coolant loss occurs; and an isolation valve for controlling the supply of the nitrogen from the accumulator into a seal housing of a nuclear reactor coolant pump. The present invention uses an accumulator so as to be able to supply nitrogen by using the pressure in the accumulator without the supply of external power in the event of an accident involving coolant loss, and therefore has the effect of being able to improve safety.

Abstract: Provided is a heat treatment apparatus for tempering glass capable of stabilizing quality and increasing productivity by inducing a stability and smoothness between processes during automatically performing of a heat treatment operation for the tempered surface of thin plate type glass, and including a preheating furnace, a main body furnace, and a cooling furnace, the apparatus including: a traveling unit for moving a conveying bogie on a pair of rails installed in parallel on the preheating furnace, the main body furnace, and the cooling furnace; a rack elevating unit for stably performing an up and down motion of a rack in which the thin plate type glass included in the conveying bogie is accommodated; and a muffle disposed on the main body furnace and performing an indirect heating operation.

Abstract: Device for putting polyethylene cladding on a galvanized steel plate, wherein a galvanized steel plate unroller from unroller is passed through a plate press, an ultrasonic cleaner, a dryer, an intermediate frequency heater, and a roll press in succession, and polyethylene sheets unrolling from one pair of sheet unrollers are welded on opposite sides of the galvanized steel plate, and rolled on a sheet roller, thereby automatically putting polyethylene cladding on the galvanized steel plate, to improve workability and productivity.

Abstract: Device for putting polyethylene cladding on a galvanized steel plate, wherein a galvanized steel plate unrolling from unroller is passed through a plate press, an ultrasonic cleaner, a dryer, an intermediate frequency heater, and a roll press in succession, and polyethylene sheets unrolling from one pair of sheet unrollers are welded on opposite sides of the galvanized steel plate, and rolled on a sheet roller, thereby automatically putting polyethylene cladding on the galvanized steel plate, to improve workability and productivity.

Abstract: The present invention relates to an operator work station for nuclear power plants which can provide plant information in an effective way during abnormal/emergency conditions so that the operator can take necessary actions to recover the nuclear power plants. The operator work station for nuclear power plants of the present invention comprises dynamic alarm console; system information console; computerized operating procedure console; system-alarm connecting system which connects the alarm console with the system information console; and, system-procedure connecting system which connects the system information console with the computerized operating procedure console. According to the operator work station, efforts and time required for the operator to judge for himself, and possibility of mistakes of judgement are properly excused, since the operator can easily recognize the system where abnormality occurs, based on the generated alarms.