Gas heater

About: Gas heater is a research topic. Over the lifetime, 1799 publications have been published within this topic receiving 6169 citations.

Gas hot -water heating system

Abstract: The utility model provides a gas hot -water heating system, including gas heater, a plurality of water consuming point and intercommunication gas heater and water consuming point's supply channel, gasheater include controller, heat exchanger, water pump, water inlet and delivery port, and the water pump setting is in water inlet department, the entry of water pump and water supply line intercommunication, and the water pump is connected with controller signal, heat exchanger's the end of intaking, play water end (W E ) be provided with respectively and water temperature sensor, play water temperature sensor that controller signal connects, the supply channel includes the parallelly connected cold water pipeline to water consuming point by water supply line to and by the parallelly connected hot water pipeline to water consuming point of gas heater's delivery port, the distal end of hot water pipeline and cold water pipeline is provided with the check valve that is flowed into the cold water pipeline by the hot water pipeline This gas hot -water heating system thoroughly solves the unable problem of using cold water after the completion of preheating under the no return water pipeline circumstances, is realizing realizing " opening coldly promptly " mode in " opening the instant heating promptly " again

Laser processing zone physical state regulation method and device

Abstract: The invention relates to a method for the adjustment of the physical state of a laser processing area and a device thereof, in particular to the mutual interaction of laser and materials and the application of the mutual interaction in the laser processing and the shaping of precision parts, which belong to the technical field of laser processing. The adjustment method comprises the following steps: a physical state adjustment device for a laser processing area with a pipeline and a pipe connector is installed on a common laser processing equipment work table, the physical state pressure, the gas ingredient, the flow regime and the flowing gas temperature in the laser processing area are adjusted and controlled, and a vacuum generator is adopted for the negative pressure adjustment to the physical state of the processing area; a gas source is adopted for gas filling to carry out the positive pressure adjustment to the state. The adjustment device consists of a protection gas source, a gas heater, a state adjuster, a filtering device and the vacuum generator. The invention can improve the precision and the quality of the laser processing machine tool when being applied in the shaping processing of the precision parts of various apparatuses in the fields of machinery, electronics, medical instrument, petroleum, chemical engineering, national defense and the like.

Combustion control method of forced-ventilated gas heater

Abstract: The invention discloses a combustion control method of a forced-ventilated gas heater, which has two situations: when the gas heater is switched from the whole-section big fire state to the whole-section small fire state: (1) when detecting the switching from the whole-section big fire state to the whole-section small fire state, starting an igniter and continuously igniting within a preset time period; (2) and after achieving the whole-section small fire state, turning off the igniter to complete the switching; when the gas heater is switched from the half-section small fire state to the whole-section small fire state: (1) when detecting the switching from the half-section small fire state to the whole-section small fire state, starting the igniter and continuously igniting within a preset time period; (2) and after achieving the whole-section small fire state, turning off the igniter to complete the switching In general, when the gas heater is switched from the whole-section big fire state to the whole-section small fire state or from the half-section small fire state to the whole-section small fire state, the igniter is started to continuously ignite within a preset time period so as to ensure the stability of the flame and avoid the intermediate flameout in the switching process

Air-conditioning system for vehicles, has gas heater cycle with electric heater in passenger compartment, where heater gets activated or deactivated based on variation of heating load to predetermined value

Abstract: The system has a hot gas heater cycle (H) for heating air blown into passenger compartment by introducing a discharged gas refrigerant from a compressor in the refrigerant cycle (C) into an interior heat exchanger (24). The gas heater cycle has electrical heater (30) in the passenger compartment. When the heating load is varied to a predetermined value, the electric heater gets activated or deactivated accordingly.

Technological process for recovering afterheat from synthesizing ammonia (methyl alcohol)

Abstract: After heat exchange with high-pressure water heater, out-tower gas heater and high-pressure water preheater, synthetic ammonia or methanol gas at 290-340 deg.C is cooled to 50-60 deg.C. The desalted and deoxidized water at 5MPa or more is heated to more than 250 deg.C by said preheater and heater and the synthetic raw gas is heated by out-tower heater and then passed into synthesis tower. The hot water at more than 5MPa and 250 deg.C is pressure reduced flashed to provide steam and hot water to different processes.