Heating boiler and method for operating same
AssigneeEconosto N.V.
InventorF. H. C. Nouwens
Life of this patent
Estimating the term…
Abstract
A fan forces air through an air inlet channel to a mixing chamber where it is mixed with fuel, and the mixture is then fed to a burner. The combustion products of the burner provide heat to a heat exchanger which is connected to a discharge channel. The contamination of the system is measured, and the speed of the fan is increased upon an increase in the contamination. The heating system is automatically prevented from operating when the contamination exceeds a predetermined value.
Claims16
A heating system comprising a burner for the combustion of a mixture of air and fuel, a feed channel for feeding said burner, a discharge channel for discharging combustion products from said burner, a heat exchanger to be heated by said burner, means for determining the degree of contamination of said system, a fan for maintaining a pressure difference between said feed and discharge channels and means for increasing the number of revolutions of the fan connected to the means for determining the degree of contamination, such that when the degree of contamination exceeds a predetermined degree the number of revolutions of the fan is increased.
In a heating system including a burner having an upstream air inlet channel, a downstream heat exchanger and a combustion products outlet channel, means for forcing air through the inlet channel, the burner, the heat exchanger and the outlet channel and means for delivering fuel to the burner, the improvement comprising means for measuring resistance to the flow of air effected by the means for forcing air, and means for generating an alarm signal in response to measurement of resistance to flow of air which exceeds a predetermined value, the means for measuring resistance to flow of air including means for measuring the mass rate of air flow and means for measuring the temperature of air flowing from the means for forcing air.
A heating system comprising, a burner, an air inlet channel for feeding air to said burner, fuel feed means for feeding fuel to said burner, a heat exchanger heated by combustion products from said burner, an outlet channel for exhausting the combustion products, means for forcing air through said inlet channel, the burner, the heat exchanger and the outlet channel, measuring means for measuring resistance to the flow of air effected by the means for forcing air, and means operated by said measuring means for automatically preventing operation of the heating system when the resistance to the flow of air exceeds a predetermined value.
In a heating system comprising, a burner, an air inlet channel for feeding air to said burner, fuel feed means for feeding fuel to said burner, a heat exchanger heated by combustion products from said burner, an outlet channel for exhausting combustion products, power operated means for forcing air through said inlet channel, the burner, the heat exchanger and the outlet channel;
- the method of operating the system comprising, operating said power operated means to force air through said inlet channel and into said burner, operating said fuel feed means to feed fuel to said burner, measuring the resistance to the flow of air through the inlet channel, and automatically preventing the operation of the heating system when the measured resistance to the flow of air exceeds a predetermined value.
Dependencies are inferred from the claim text.