The discharge valve unit includes: a valve case configured to be detachably attached to the housing and including a second reservoir for liquid configured to communicate with the first reservoir when the valve case is attached to the housing; and a second valve mechanism disposed in the second reservoir and including a second discharge hole having a larger opening diameter than that of the first discharge hole and a second valve member accommodated in the second reservoir and configured to open and close the second discharge hole. The second valve mechanism includes a spring configured to bias the second valve member in a valve opening direction. When a pressure of the second reservoir increases to a predetermined value, the second valve member closes the second discharge hole against a biasing force of the spring.

The discharge valve unit includes: a valve case configured to be detachably attached to the housing and including a second reservoir for liquid configured to communicate with the first reservoir when the valve case is attached to the housing; and a second valve mechanism disposed in the second reservoir and including a second discharge hole having a larger opening diameter than that of the first discharge hole and a second valve member accommodated in the second reservoir and configured to open and close the second discharge hole. The second valve mechanism includes a spring configured to bias the second valve member in a valve opening direction. When a pressure of the second reservoir increases to a predetermined value, the second valve member closes the second discharge hole against a biasing force of the spring.

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 collecting tank (12) which is supplied with a medium, at least the liquid component of the medium being separated into the collecting tank (12), and the separated portion of the medium being discharged from the collecting tank (12) via a discharge valve (46). According to the invention, the gas-liquid separator (2) is integrated into a housing (11) of a recirculation pump (9).

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 condensate trap for a furnace system includes a trap inlet configured to receive combusted gases, a condensate chamber coupled to the trap inlet and configured to trap condensate, a trap outlet coupled to the condensate chamber and configured to exhaust the combusted gases, a header box inlet configured to receive condensate from a header box, and a condensate outlet configured to drain condensate from the condensate chamber. Combusted gas that passes through the condensate trap provides heat to condensate within the condensate trap to thaw frozen condensate or to prevent condensate from freezing.

A condensate trap for a furnace system includes a trap inlet configured to receive combusted gases, a condensate chamber coupled to the trap inlet and configured to trap condensate, a trap outlet coupled to the condensate chamber and configured to exhaust the combusted gases, a header box inlet configured to receive condensate from a header box, and a condensate outlet configured to drain condensate from the condensate chamber. Combusted gas that passes through the condensate trap provides heat to condensate within the condensate trap to thaw frozen condensate or to prevent condensate from freezing.

A condensate trap for a furnace system includes a trap inlet configured to receive combusted gases, a condensate chamber coupled to the trap inlet and configured to trap condensate, a trap outlet coupled to the condensate chamber and configured to exhaust the combusted gases, a header box inlet configured to receive condensate from a header box, and a condensate outlet configured to drain condensate from the condensate chamber. Combusted gas that passes through the condensate trap provides heat to condensate within the condensate trap to thaw frozen condensate or to prevent condensate from freezing.

A condensate trap for a furnace system includes a trap inlet configured to receive combusted gases, a condensate chamber coupled to the trap inlet and configured to trap condensate, a trap outlet coupled to the condensate chamber and configured to exhaust the combusted gases, a header box inlet configured to receive condensate from a header box, and a condensate outlet configured to drain condensate from the condensate chamber. Combusted gas that passes through the condensate trap provides heat to condensate within the condensate trap to thaw frozen condensate or to prevent condensate from freezing.

A method and device for detecting and extracting a gaseous fluid contained in a closed loop operating on a Rankine cycle are provided. The loop includes a multiplicity of constituents with, successively, a circulation and compression pump for a working fluid, a heat exchanger associated with a hot source, an expansion machine, a cooling exchanger, a working fluid tank and circulation pipes connecting these constituents. The method and device measure the temperature (Trelle) and the pressure (Prelle) of the working fluid at a point of the loop when this loop is at rest, and, as soon as the measured pressure (Prelle) exceeds a threshold value (Pliquide satur) for a given ambient temperature (T), activate equipment for extracting the gaseous fluid in order to discharge it from the loop.

A method and device for detecting and extracting a gaseous fluid contained in a closed loop operating on a Rankine cycle are provided. The loop includes a multiplicity of constituents with, successively, a circulation and compression pump for a working fluid, a heat exchanger associated with a hot source, an expansion machine, a cooling exchanger, a working fluid tank and circulation pipes connecting these constituents. The method and device measure the temperature (Trelle) and the pressure (Prelle) of the working fluid at a point of the loop when this loop is at rest, and, as soon as the measured pressure (Prelle) exceeds a threshold value (Pliquide satur) for a given ambient temperature (T), activate equipment for extracting the gaseous fluid in order to discharge it from the loop.