A Saturated Steam Generator for Sulfur Hexafluoride Humidity Sensor Calibration

Abstract

The invention provides a saturated vapor generating device for verifying a sulfur hexafluoride humidity sensor. The saturated vapor generating device for verifying the sulfur hexafluoride humidity sensor comprises a saturated vapor generator, a gas source and a reduced pressure filtering device with a drying function. An outlet of the gas source is connected with a gas inlet of the saturated vapor generator through the reduced pressure filtering device and a valve in sequence. The saturated vapor generating device for verifying the sulfur hexafluoride humidity sensor is characterized in that the saturated vapor generator comprises a sealed container with an electric heating pipe, a circulation pump, an aerator, a water tank and a temperature sensor, wherein a gas inlet and a water gap are formed in the bottom of the sealed container, the temperature sensor is mounted at the bottom in the sealed container, the aerator is mounted in the sealed container and is communicated with the gas inlet, the gas inlet is communicated with the gas source through a pipeline provided with a first valve and the reduced pressure filtering device in sequence and is connected with a T joint through a circulation pump, one end of the T joint is communicated with the top of the sealed container, the second end of the T joint is connected with the atmosphere through an exhaust pipeline provided with a third valve, a second valve is arranged in the water gap of the sealed container, and the water gap of the sealed container is communicated with the bottom of the water tank. The saturated vapor generating device for verifying the sulfur hexafluoride humidity sensor is small in size, light, easy to achieve and simple in manufacturing technology.

Description

technical field [0001] The invention provides a saturated steam generator used for calibration of sulfur hexafluoride humidity sensors, belonging to the technical field of saturated steam generators. Background technique [0002] Steam generators are widely used in military, industrial, and civilian fields, and the demand for them is particularly strong in the industrial and civilian fields. In the industrial field, the steam generator, as the hub of the reactor cooling system (primary circuit system) and steam and power conversion system (secondary circuit system) in the pressurized water reactor nuclear power unit, is one of the key equipment for the operation of the nuclear power unit; because the primary circuit system and the steam required in the secondary circuit system are respectively used as the direct power to drive the steam turbine unit to generate electricity and an important barrier to block the emissive heat exchange medium in the primary circuit system. Ther...

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Problems solved by technology

In the industrial field, the steam generator, as the hub of the reactor cooling system (primary circuit system) and steam and power conversion system (secondary circuit system) in the pressurized water reactor nuclear power unit, is one of the key equipment for the operation of the nuclear power unit; because the primary circuit system and the steam required in the secondary circuit system are respectively used as the direct power to drive the steam turbine unit to generate electricity and an important barrier to block the emissive heat exchange medium in the primary circuit system. Therefore, the steam generators in this field are bulky, complex in structure, and require Strict requirements and high technology intensity

In the civilian field, electric heating steam generators are more common in garment factories, mainly used as steam irons, steam ironing machines, etc. Electric heating steam generators mainly include water supply systems, automatic control systems, furnace and heating systems, and safety protection systems Among them, the water supply system and the automatic control system have complex logic control, and the furnace has the characteristics of high temperature and high pressure resistance. Therefore, the structure of the electric heating steam generator is relatively complicated and the process requirements are high.

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