Pre-heat system for Catalysts of the Selective Catalytic Reduction Device

摘要

A pre-heat system for the catalyst of the selective catalytic reduction (SCR) device includes an air blower, an interconnecting pipe, a heater unit, and a heat supply pipe. The air blower and the heater unit are in fluid communication with each other through the interconnecting pipe while the heater unit is in fluid communication with an exhaust system through the heat supply pipe. A hot-air flow generated from the air blower and the heater unit flows into the exhaust system so that the hot-air flow is able to pre-heat the catalyst of the SCR device at or close to an activation temperature. Then the SCR device can efficiently and quickly reduce Nitrogen Oxides (NOx) particles of the exhaust gas.

主权项

1. A pre-heat system for catalysts of the selective catalytic reduction device comprises:
an air blower; an interconnecting pipe; a heater unit; a heat supply pipe; the heater unit comprises a housing, a heating element, a thermostat, and at least one temperature sensor; the heater unit being in fluid communication with the air blower through the interconnecting pipe; and the heater unit being in fluid communication with an exhaust system through the heat supply pipe opposite of the air blower.