CONTROL METHOD OF UNDERWATER COOLING INTENSITY AND UNDERWATER COOLING INTENSITY CONTROL DEVICE Russian patent published in 2020 - IPC E21B36/00 F28D1/47 E21B43/12 

FIELD: heat power engineering.

SUBSTANCE: group of inventions relates to power engineering, namely to methods for controlling intensity of underwater cooling of liquids and gases and devices for their implementation, and can be used in oil, gas and other industries. Disclosed is a method for controlling the intensity of underwater cooling and a device for its implementation, comprising a supply pipeline, at least a first cooling circuit and a second cooling circuit, configured to divide the flow after the supply pipeline, and a discharge pipeline. First cooling circuit represents a plurality of first heat exchange sections, and the second cooling circuit is a plurality of second heat exchange sections. Said circuits have different cooling capacity and are made with possibility of heat exchange with surrounding sea water. Discharge pipeline is configured to connect flows after the first cooling circuit and the second cooling circuit. At that, device for underwater cooling intensity control additionally contains means of flow rate control through the first cooling circuit and flow rate control means through the second cooling circuit. Said means are configured to be controlled by a control unit. Control unit is configured to be connected to automated process control system via communication lines. At that, flow rate control devices through the first cooling circuit are made with possibility to change throughput capacity through the first cooling circuit at supply of signal from control unit. Means for regulating flow rate through the second cooling circuit are configured to automatically change throughput capacity through the second cooling circuit when the signal from the control unit is supplied simultaneously with variation of throughput capacity through the first cooling circuit. At that value of carrying capacity through the second cooling circuit is depending on value of carrying capacity through the first cooling circuit so, to ensure the required temperature at the outlet of the outlet pipeline of said device at a given temperature value at the inlet of the supply pipeline of the device and maintaining the required total flow rate through the device, the same speeds as the flow of the hydrocarbon mixture and the flow of ambient sea water.

EFFECT: provision of the required total flow rate through the device at regulation of cooling intensity due to change of speeds in cooling circuits of the device by means of flow control devices.

8 cl, 12 dwg