FIELD: heating; cooling.
SUBSTANCE: disclosed is a process control plant comprising a housing, a process control device located in the housing, and a temperature control device, functionally connected to housing for atmosphere temperature control inside housing. Device for temperature control comprises vortex tube and flow rate control valve. Flow rate control valve is connected to vortex tube and comprises heat-sensitive element, made with possibility of atmosphere temperature measurement inside housing and made with possibility to move control element of flow rate control valve depending on measured temperature into multiple positions for selective direction of fluid medium flow from first and second outputs of vortex tube to inner atmosphere of housing.
EFFECT: possibility of process control under action of extreme temperatures or temperature changes.
29 cl, 5 dwg
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