Anti-freezing module of closed cooling tower

Abstract

The invention relates to the field of cooling equipment, and discloses a closed cooling tower anti-freezing module which comprises a microcirculation device, the microcirculation device is arranged between the water inlet end and the water outlet end of a condensing coil, and the microcirculation device is used for driving water to circulate in the condensing coil; the anti-freezing solution filling device is arranged on one side of the cooling tower, the anti-freezing solution filling device comprises a bottom plate, an anti-freezing solution box arranged on the bottom plate, a liquid injection pipe communicated with the anti-freezing solution box and the lower end of the condensing coil, and a liquid injection pump arranged in the middle of the liquid injection pipe, and a liquid injection valve is arranged at the water outlet end of the liquid injection pipe; the controller is arranged on the bottom plate, and the microcirculation device and the anti-freezing solution filling device are both electrically connected with the controller. The anti-freezing device has the effect of conveniently performing anti-freezing protection on the condensing coil.

Description

technical field [0001] The application relates to the field of cooling equipment, in particular to an antifreeze module of a closed cooling tower. Background technique [0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it to the atmosphere to reduce the temperature of the water. The current closed cooling tower is a combination of a cooler and a wet cooling tower. A condensing coil is installed inside the cooling tower. Both ends of the condensing coil extend out of the cooling tower. Both ends of the condensing coil are equipped with throttle valves. The liquid flows through the condensing coil, and the air flows outside the condensing coil. At the same time, the water in the reservoir at the bottom of the tower is pumped by the circulating pump, and the condensing coil is evenly sprayed from the top of the tower. [0003] When the closed cooling tower is shut down in winter, in order to prevent the wate...

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Problems solved by technology

[0004] However, the water inside the condensing coil cannot be drained by gravity alone, and the residual water will cause damage to the condensing coil after freezing. It is necessary for the staff to close the drain valve and drain the water from the intake and exhaust valves to the condensing coil. Inflate the interior to maintain a certain pressure inside the condensing coil, and then open the drain valve to discharge the residual water under the high pressure inside the condensing coil. Generally, it is necessary to repeat the above steps three to four times to drain the water in the condensing coil. Basic emptying

[0005] In the process of realizing the present application, the inventor found that there are at least the following problems in this technology: it is inconvenient to use the above-mentioned drainage method to protect the condensing coil against freezing

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