Parallel hot oil boiler duct system

The utility model discloses a parallel type hot oil boiler tube system, comprising a hot oil circulation pump, a heating boiler, a user heating system and an air removal tank, which are connected in series in one loop, also a temperature-flow regulator which is connected with the user heating system in parallel. The heating boiler is composed of a hot oil boiler and at least an exhaust gas boiler. The oil inlets of the hot oil boiler and exhaust gas boiler are connected with the output end of the hot oil circulation pump. The oil outlets of the hot oil boiler and exhaust gas boiler are concurrently connected with the input end of the user heating system. Owing to the fact that the hot oil boiler is used in parallel connection with the exhaust gas boiler and concurrently provides the heating system with oil, the flow of hot oil is increased; the power of the oil boiler and exhaust gas boiler can be optimized; the power of the overall system is improved significantly.