Nuclear grade air handling unit

An air handling unit, nuclear-level technology, applied in the fields of purification and air conditioning, can solve the problems of inconvenient maintenance and repair of check valves, and achieve the effect of reducing noise
CN103743008BActive Publication Date: 2017-03-15NANFANG VENTILATOR +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANFANG VENTILATOR
Publication Date
2017-03-15

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Abstract

The invention discloses a low-noise low-vibration low-leakage high-seismic nuclear air-handling unit comprising a unit case provided with an air inlet and an air outlet. A primary filter unit, an efficient filter unit, a heater, a cooler, a water baffle, a humidifier and a centrifugal fan are mounted in the unit case sequentially in the flowing direction of air from the air inlet to the air outlet. The low-noise low-vibration low-leakage high-seismic nuclear air-handling unit further comprises a rubber gasket. The primary filter unit is formed by mounting a plurality of primary filters on a primary filter bent frame in a W arrangement form. The efficient filter unit is formed by parallelly arranging a plurality of efficient filters on an efficient filter bent frame. A perforated plate muffler is mounted in the inner wall of the unit case. A base of the centrifugal fan is provided with a wire rope isolator disposed on a frame of the unit case. An air outlet of the fan is flexibly connected with the air outlet of the unit case. A mounting hole of the rubber gasket is provided with a sleeve. The nuclear air-handling unit has the advantages of low noise, low vibration, low leakage and high seismic performance.
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Description

technical field

[0001] The invention relates to the technical field of air conditioning and purification for a nuclear island ventilation and air conditioning system of a nuclear power plant, in particular to a nuclear-grade air processing unit. Background technique

[0002] At present, this type of nuclear-grade air handling unit is installed in the nuclear island electric plant. The existing nuclear-grade air handling unit for CPR1000 and EPR pressurized water reactor nuclear power plants is developed on the basis of 0.2g, 0.25g ground acceleration and 4% damping ratio. The designed and verified products are not equipped with high-efficiency filters, which cannot meet the higher quality requirements of air cleanliness, and cannot be used in the third-generation nuclear power plant nuclear island electrical plant. Because the ground acceleration of the third-generation nuclear power plant is designed according to the requirements of 0.3g and 2% damping ratio, and according ...

Claims

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