On the problem of preventing the use of atmospheric pressure hot water boilers under pressure

　　Atmospheric pressure hot water boilers often have explosion accidents because they are used under pressure. In order to prevent the atmospheric pressure hot water boiler from being used under pressure, it is required to set up openings and pipes leading to the atmosphere at the top of the atmospheric pressure boiler, and ensure that they are unobstructed. Spray the warning signs that "atmospheric pressure boilers shall not be used under pressure and the temperature of the outlet hot water shall not exceed 900C". In the use of atmospheric pressure hot water boilers, supplementary injection warning signs are also required. For newly built atmospheric pressure hot water boilers without openings or nozzles directly leading to the atmosphere on the top of the boiler body, or without spraying warning signs, if an accident occurs, the manufacturer must be held responsible, including the failure to notify users and installers. Legal Responsibility for Safety Matters. Atmospheric pressure boilers that do not meet the regulations shall be investigated and dealt with in accordance with the law.