Liquid cooling system applied to digital television transmitter

Abstract

The invention discloses a liquid cooling system applied to a digital television transmitter and relates to the technical field of digital televisions. The system consists of a pump unit, a heat exchanger unit and a programmable logic controller (PLC) control cabinet for electrically controlling the whole liquid cooling system, wherein the pump unit comprises two circulating pumps, two electronic thermometers, an electric contact thermometer, an expansion tank, an electronic temperature sensor and an electric contact pressure gauge; the heat exchanger unit comprises a heat exchanger and two fans blowing and radiating the heat exchanger; an outlet of the heat exchanger is connected to an inlet of a circulating pipeline of the digital television transmitter through the second circulating pump and the first circulating pump in turn; an outlet of the circulating pipeline of the digital television transmitter is connected to an inlet of the heat exchanger; and an outlet end of the second circulating pump and an outlet end of the first circulating pump are connected with each other and are respectively connected to outlet ends of the expansion tank and the heat exchanger. Compared with the prior art, the system can achieve good cooling effect of the digital television transmitter, and has the characteristics of small occupied area, low water consumption, high corrosion resistance, safety and reliability.

Description

technical field [0001] The invention relates to the technical field of digital television, in particular to a liquid cooling system suitable for digital television transmitters. Background technique [0002] With the requirements of high power, high power density and high compactness for digital TV transmitters, the heat dissipation of power amplifier units of transmitters has been greatly increased. In order to reduce the operating temperature of the power amplifier unit and the electronic components of the composite distribution network and keep them running effectively, it must be cooled and dissipated to prolong the service life of the power components, reduce the noise of the transmitter, and increase the power of the transmitter under the same volume density while saving energy. Due to the establishment of digital TV standards and the continuous improvement of the design and manufacture of digital TV transmitters, the cooling method of the transmitter has also changed...

AI Technical Summary

Problems solved by technology

[0003] 1. Large water consumption: ordinary stainless steel water tank is used for water storage. Due to the evaporation of water, it needs to be replenished continuously;

[0004] 2. Since the whole system adopts an open system, the floor area of ​​the equipment is relatively large;

[0005] 3. The liquid inside the system is in contact with the air, so that the corrosion resistance of the whole system is not strong;

[0006] 4. The traditional ordinary pipe joint method is very easy to cause liquid leakage, thus damaging electronic devices

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