High-temperature-resistant corrosion inhibition-descaling integrated agent for carbon steel equipment and preparation method of high-temperature-resistant corrosion inhibition-descaling integrated agent

The invention discloses a high-temperature-resistant corrosion inhibition-descaling integrated agent for carbon steel equipment and a preparation method of the high-temperature-resistant corrosion inhibition-descaling integrated agent. The integrated agent is prepared from the following components in percentage by mass: 0.1-5% of a compound corrosion inhibitor; 0.1-30% of hydrochloric acid; 0.1-3% of hydrofluoric acid; 0.5 to 5% of a surfactant; 0.0005 to 0.002% of a scale inhibitor; 60-88% of water; wherein the compound corrosion inhibitor is prepared from the following components in percentage by mass: 5 to 10 percent of ethanol, 15 to 35 percent of imidazolines, 15 to 30 percent of didodecyl dimethyl ammonium chloride, 3 to 10 percent of diamide pod ether, 5 to 10 percent of molybdate and 5 to 57 percent of water. The corrosion inhibition-descaling integrated agent provided by the invention can ensure the descaling effect, has a good corrosion inhibition effect on carbon steel equipment, can maintain the d