Abstract: The present disclosure relates to a windows and doors assembly having a ventilation function and a horizontal contact function, and more particularly to a horizontal contact windows and doors assembly for crime prevention and security functions by preventing a window from being open even when the window is slightly open and it is possible to ventilate with the outside air.

Abstract: The invention relates to a furnace for the treatment of material, in particular for the oxidative treatment of fiber material, in particular for producing carbon fibers, comprising a housing (12) having a housing inner space (14), which is gas-tight with the exception of passage areas (18, 20) for the fibers (22). In the housing inner space (14) of the housing (12), a process chamber (28) is located. A hot working atmosphere (40) can be generated by means of an atmosphere device (42). The atmosphere device (42) comprises a flow system (46) having flow channels (48), which are arranged in the housing inner space (14) each defining one flow chamber (50), and are provided with flow passages such that the respective flow chambers (50) are fluidically connected to the process chamber (28) in such a way that hot working atmosphere (40) can be delivered to the process chamber (28) in at least one main flow direction (44) and can be discharged from the process chamber (28).

Abstract: A method for improving effectiveness of a steam generator system includes providing a steam generator system including a steam generator vessel, an air supply system and an air preheater. The air supply system is in communication with the steam generator vessel through the air preheater and the steam generator vessel is in communication with the air preheater. The air supply system provides a first amount of air to the air preheater. At least a portion of the first amount of air is provided to the steam generator vessel. A flue gas mixture is discharged from the steam generator vessel. At least a portion of the flue gas mixture flows into the air preheater. SO3 in the flue gas mixture is mitigated before the flue gas mixture enters the air preheater.

Abstract: A water heating system can include a water heater having a tank, and a first temperature sensor disposed toward a top end of the tank to measure a first temperature and a second temperature sensor disposed toward a bottom end of the tank to measure a second temperature. The water heating system can further include a controller communicably coupled to the first temperature sensor and the second temperature sensor, where the controller determines an amount of heated water in the tank based on a plurality of algorithms and measurements made by the first and second temperature sensors. The plurality of algorithms solves for at least one calculated temperature for at least one point between a first location of the first temperature sensor and a second location of the second temperature sensor, where the at least one calculated temperature is used to determine the amount of heated water in the tank.

Abstract: A heating component comprising a housing, at least one heating component and at least one connecting member; the heating component is disposed within the housing, and the connecting member is disposed on at least one side of the outer wall of the housing; the connecting member is assembled to the housing; the connecting member comprises a slot and a slot wall; the slot wall is located on the periphery of the slot; at least a part of the slot wall is outwardly recessed; the heating component comprises at least one chamber, and the chamber comprises a space formed between the slot wall and the outer wall of the housing; the connecting member comprises a first connecting port and a second connecting port; the first connecting port is connected to the chamber, and the second connecting port is also connected to the chamber; the first connecting port is connected to the second connecting port through the chamber.

Abstract: A method for producing an air duct damper includes the steps of punching from sheet metal stock a damper preform having a body and two diametrically opposed arms extending from opposite sides of the body; and forming an indentation in the damper preform extending between and up to respective ends of the two arms.

Abstract: Heat exchanger output control device in a one-pipe heating network characterized in that a first T-branch, which is connected to a second T-branch interconnected to a primary outlet pipe connection of a primary outlet pipe to a heat source through a primary outlet, is connected to the primary inlet pipe connection through a primary inlet. The first T-branch is connected to a secondary supply pipe connection through a secondary supply pipe with a secondary supply temperature sensor, and the second T-branch is connected to a secondary return pipe connection through a secondary return pipe with an additional secondary return temperature sensor. An impeller of a pump is connected to a secondary circuit to pump the heat-transfer medium from the first T-branch through a heat exchanger back to the second T-branch, and to connected to a electrical motor provided with a control unit connected to secondary supply and return temperature sensors.

Abstract: A fuel-fired heating appliance comprises a fuel source, an air source, a chamber in which fuel and air mix, a burner downstream from the mixing chamber, an igniter proximate the burner, a heat exchanger, a blower and a flue pipe. An ambient air inlet may be defined by at least one of the outlet end of the blower and the flue pipe extending between the interior of the flue pipe and an area ambient to the flue pipe. A flow rate of combustion gas may be controlled to a level below a steady-state flow rate during appliance warm-up.

Abstract: A heating, ventilation, and air conditioning (HVAC) airflow distribution module including a passenger side face outlet and a passenger center face outlet both defined by the module. A passenger face door sub assembly within the module includes a passenger side face door (outer portion) at the passenger side face outlet and movable to control airflow through the passenger side face outlet. A passenger center face door (inner portion) is at the passenger center face outlet and is movable to control airflow through the passenger center face outlet. The passenger side face door and the passenger center face door are movable independent of one another to independently control airflow through the passenger side face outlet and the passenger center face outlet.

Abstract: The present disclosure provides a production system and a production method of potassium manganate, belonging to the technical field of production of potassium manganate. The production system of potassium manganate comprises a hot air generating device, a production device and a circulating air pipeline. The hot air generating device is configured provide hot air in a manner of burning fuel gas. The production device is configured to absorb heat in the hot air generated by the hot air generating device. The circulating air pipeline is configured to introduce the hot air passing through the production device into the hot air generating device to adjust temperature of the hot air.

Abstract: A ventilation arrangement has a ventilation channel with a mouth opening and a first shielding hood shielding the mouth opening. The ventilation channel widens and/or narrows in cross section towards the mouth opening. The mouth opening is encompassed by the first shielding hood, leaving free a gap.

Abstract: Embodiments of the present disclosure provide a sintering device and a pressure sintering mechanism with a controllable atmosphere thereof. The pressure sintering mechanism with the controllable atmosphere includes: a telescopic tube, wherein at least a part of the telescopic tube is an elastically telescopic bellows section; two pressure components arranged opposite to each other, wherein the telescopic tube is configured between the two pressure components, the two pressure components are configured to seal an opening of an end of the telescopic tube when the two pressure components are close to each other to form a sealed sintering chamber inside the telescopic tube and apply pressure to a product inside the sintering chamber; and a heating component configured to heat the product inside the sintering chamber.

Abstract: A wall exhaust vent (e.g., for a dryer or other HVAC system) can include a housing defining a vent opening, and one or more bumpers on or at least partially within the housing and configured contact a door of the wall exhaust vent in a closed position. The one or more bumpers can include a bumper body, and a magnet disposed at least partially within the bumper body that is configured to magnetically interact with the door of the wall exhaust vent to bias the door to the closed position.

Abstract: A condensate drain system for a heating, ventilation, and/or air conditioning (HVAC) system includes a heat exchanger having a plurality of tubes configured to receive ambient air and fluidly coupled to a drain via a conduit, a valve positioned along the conduit between the plurality of tubes and the drain, where the valve is configured to enable a flow of condensate from within the plurality of tubes toward the drain in an open position and the block the flow in a closed position, and a controller configured to adjust a position of the valve based on feedback indicative of an operational state of the HVAC system.

Abstract: An intelligent work vehicle preheating system includes an electric drive subsystem containing a battery pack, a hydraulic subsystem containing a first hydraulic fluid (HF) heating device, and a first HF temperature sensor. A memory stores a first minimum target temperature at or above which a first hydraulic fluid body contained in the hydraulic subsystem is desirably maintained. A controller architecture selectively places the intelligent work vehicle preheating system in an off-duty preheat mode when the electric drive subsystem is connected to an external power supply utilized to charge the battery pack. The controller architecture further controls the HF heating device to heat the first hydraulic fluid body when (i) the intelligent work vehicle preheating system is placed in the off-duty preheat mode, and (ii) the current temperature of the first hydraulic fluid body is less than the first minimum target temperature.

Abstract: An integrated pressure condensing boiler is provided which relates to the technical field of boilers. The integrated pressure condensing boiler includes a pressure-bearing housing, a heat-exchange furnace arranged in the pressure-bearing housing, a combustion chamber communicating with the heat-exchange furnace and cooling tube groups fixed in the heat-exchange furnace. Heat-exchange medium flows from bottom to top in the pressure-bearing housing and in the cooling tube groups, and exchanges heat with high-temperature flue gas flowing from top to bottom in the heat-exchange furnace, thus achieving a counterflow heat exchanging. The heat-exchange furnace includes a multi-stage heat-exchange chamber with each heat-exchange chamber being cylindrical. The heat-exchange chambers are arranged in sequence from top to bottom to achieve a flue gas diffusing manner that high-temperature flue gas diffuses from center part to periphery and then gathers from periphery to center part.

Abstract: In order to quickly condition a room by blowing conditioned air from an air blowing opening over a wide range, a fixed air blowing portion 75 is disposed at a central portion in a raised portion 740 in which a part of a decorative panel 70 is raised toward the air conditioning room. Movable air blowing portions 77 are disposed on both sides thereof. The movable air blowing portion 77 is rotatable within a predetermined angle range around an axis orthogonal to the panel surface of the decorative panel 70 or to the ceiling surface, while air blowing openings 754 and 783 are formed on each side surface of the fixed air blowing portion 75 and the movable air blowing portion 77. As a result, the conditioned air is blown out in a wide range in the horizontal direction from the air blowing opening 783 as the movable air blowing portion 77 rotates.

Abstract: The present disclosure discloses a reflow oven, comprising a heating zone, a cooling zone, a barrier and exhaust zone, a gas exhaust passage, a gas exhaust power device, and a detection device. The heating zone comprises a heating zone inlet and a heating zone outlet. The cooling zone comprises a cooling zone inlet and a cooling zone outlet. The barrier and exhaust zone is located between the heating zone outlet and the cooling zone inlet. An inlet of the gas exhaust passage is communicated with the barrier and exhaust zone. The gas exhaust power device is disposed on the gas exhaust passage. The detection device is disposed on the gas exhaust passage and used for detecting parameters of gas in the gas exhaust passage, wherein the parameters of the gas reflect a blockage condition of the gas exhaust power device.

Abstract: A distribution pump arrangement for a bi-directional hydraulic distribution grid can include a hot conduit control valve in a hot conduit; a first distribution pump having an inlet connected to the hot conduit at a first side of the hot conduit control valve, and an outlet connected to the hot conduit at a second side, opposite the first side, of the hot conduit control valve; a pressure difference determining device arranged beyond the second side of the hot conduit control valve and configured to determine a local pressure difference, ?p, between a local pressure of heat transfer liquid in the hot conduit and a local pressure of heat transfer liquid in the cold conduit; and a controller configured to set the distribution pump arrangement based at least in part on ?p.

Abstract: Disclosed is a combustion heat generator with a recirculation region for forming uniform temperature distribution in a combustion chamber by forming a gas recirculation region around a central part of a combustion space in a housing and injecting fuel into the gas recirculation region to generate space combustion based on the recirculation region.