The present disclosure relates to a condensate trap for a gas furnace for collecting and discharging condensate generated in a heat exchanger and an exhaust pipe, the condensate trap including: a first inlet through which the condensate generated in the heat exchanger is introduced; a second inlet through which the condensate generated in the exhaust pipe is introduced; a first passage through which the condensate introduced from the first inlet passes; a second passage through which the condensate introduced from the second inlet passes; a discharge port through which the condensate, having passed through the first passage and the second passage, is discharged outside; and a backflow prevention device disposed on the first passage and configured to prevent backflow of air, wherein the backflow prevention device includes: a housing; and a core which is movably disposed in the housing, and which in response to an amount of the condensate introduced from the first inlet being less than or equal to a predetermined amount, prevents backflow of the air by closing the first passage.

A model-based control system is configured to select a desired parameter of a machinery configured to produce power and to output emissions and to select an emissions model configured to use the desired parameter as input and to output an emissions parameter. The model-based control system is additionally configured to tune the emissions model via a tuning system to derive a polynomial setpoint, and to control one or more actuators coupled to the machinery based on the polynomial setpoint.

ABSTRACT An apparatus is for collecting a by-product in a semiconductor manufacturing process. The apparatus includes: a housing cooling channel on an inner wall thereof to cool exhaust gas which is temperature-controlled by a heater while being introduced through a gas inlet of an upper plate; an internal collecting tower including multiple vertical plates and multiple horizontal plates that are assembled, and condensing and collecting a by-product from the exhaust gas; a main cooling channel having a serpentine shape and cooling the exhaust gas uniformly by using coolant while passing through the internal collecting tower; and a multi-connection pipe sequentially supplying the coolant to the upper plate cooling channel, the housing cooling channel, and the main cooling channel and discharging the coolant, by using a supply pipe and a discharge pipe that are provided outside the housing.

ABSTRACT An apparatus is for collecting a by-product in a semiconductor manufacturing process. The apparatus includes: a housing cooling channel on an inner wall thereof to cool exhaust gas which is temperature-controlled by a heater while being introduced through a gas inlet of an upper plate; an internal collecting tower including multiple vertical plates and multiple horizontal plates that are assembled, and condensing and collecting a by-product from the exhaust gas; a main cooling channel having a serpentine shape and cooling the exhaust gas uniformly by using coolant while passing through the internal collecting tower; and a multi-connection pipe sequentially supplying the coolant to the upper plate cooling channel, the housing cooling channel, and the main cooling channel and discharging the coolant, by using a supply pipe and a discharge pipe that are provided outside the housing.

The invention relates to a gas-liquid separator (2) for separating at least one liquid component, in particular H.sub.2O, from a gaseous component, in particular H.sub.2, the separator comprising at least one container (6) which is supplied with a medium via an inlet (16), at least the liquid component of the medium being separated in at least one container (6) and the separated component of the medium being discharged from the at least one container (6) via a discharge valve (46) with the remaining gaseous component of the medium, in particular H.sub.2, being recirculated into an outflow line (5) via a first outlet (18). According to the invention, in addition to the liquid component, in particular H.sub.2O, a gaseous component N.sub.2 is separated from the medium by the gas-liquid separator (2).

The invention relates to a gas-liquid separator (2) for separating at least one liquid component, in particular H.sub.2O, from a gaseous component, in particular H.sub.2, the separator comprising at least one container (6) which is supplied with a medium via an inlet (16), at least the liquid component of the medium being separated in at least one container (6) and the separated component of the medium being discharged from the at least one container (6) via a discharge valve (46) with the remaining gaseous component of the medium, in particular H.sub.2, being recirculated into an outflow line (5) via a first outlet (18). According to the invention, in addition to the liquid component, in particular H.sub.2O, a gaseous component N.sub.2 is separated from the medium by the gas-liquid separator (2).

An apparatus for a gas turbine power plant that uniquely configures emission control equipment such that the plant can extend the emissions compliant operational range, the apparatus including a plurality of oxidation (CO) catalysts arranged in series.

An apparatus for a gas turbine power plant that uniquely configures emission control equipment such that the plant can extend the emissions compliant operational range, the apparatus including a plurality of oxidation (CO) catalysts arranged in series.

Staying of a drain on a cylinder attached to a lower side of a valve casing is suppressed, and occurrence of corrosion of the cylinder is suppressed. A steam valve includes a valve casing, a valve disc disposed within the valve casing, a cylinder disposed on a lower side of the valve casing and having a piston rod extending upward, a valve stem vertically penetrating a lower portion of the valve casing and having one end coupled to the piston rod via a coupling and having another end coupled to the valve disc, a cover having a larger diameter than the piston rod and the coupling and configured to separate the piston rod and the coupling from each other by being interposed between the piston rod and the coupling, and a tubular skirt hanging down from a peripheral portion of the cover and surrounding a periphery of a head portion of the piston rod.

Staying of a drain on a cylinder attached to a lower side of a valve casing is suppressed, and occurrence of corrosion of the cylinder is suppressed. A steam valve includes a valve casing, a valve disc disposed within the valve casing, a cylinder disposed on a lower side of the valve casing and having a piston rod extending upward, a valve stem vertically penetrating a lower portion of the valve casing and having one end coupled to the piston rod via a coupling and having another end coupled to the valve disc, a cover having a larger diameter than the piston rod and the coupling and configured to separate the piston rod and the coupling from each other by being interposed between the piston rod and the coupling, and a tubular skirt hanging down from a peripheral portion of the cover and surrounding a periphery of a head portion of the piston rod.