121results about "Drum steam boilers" patented technology

A condensing gas boiler having a corrosion prevention structure of preventing corrosion caused by using heterogeneous metal is provided, which includes a casing provided with a combustion chamber therein; a present heat exchanger arranged in the casing, which includes a first tubular tube made of a copper material having a plurality first thermal pins formed by processing an outer circumferential surface; a latent heat exchanger disposed at a distance from the present heat exchanger, which includes a second tubular tube whose inner portion is made of a copper material and whose outer portion is made of aluminum, having a plurality second thermal pins formed by processing an outer circumferential surface; end plates contacting and engaged with each other while the present heat exchanger and the latent heat exchanger are fixedly arranged in respective rows and installed in the casing; and a plurality of connection tubes which are mutually connected through a connection portion so that water can circulate through the present heat exchanger and the latent heat exchanger, wherein connection tubes which are made of a corrosion-resistant material are installed to have a broader area, and simultaneously connection tubes which are made of a corrosion-easy material are installed to have a smaller area, to thereby suppress galvanic corrosion through an unfavorable area ratio, and wherein an insulator for electrical insulation is provided between the end plates. Galvanic corrosion or stay current corrosion caused by using heterogeneous metal between the present and latent heat exchangers is suppressed, to thereby enhance durability of a product and thus heighten reliability of the product.

There is provided an indoor mounting water heater in which combustion exhaust gas is discharged to the outdoors via an exhaust duct, wherein a decrease in draft force caused when the number of burner groups to be burned is reduced by a capacity changeover mechanism to decrease the combustion capacity can be prevented, and the heat efficiency can be improved. An air supply chamber 81 is divided into a plurality of parts 82 and 83 corresponding to a plurality of burner groups 51 and 52. The air sent from an air supply fan 84 is supplied to only a part of the air supply chamber corresponding to a burning burner group.

The invention provides a vapor generator. The vapor generator according to the invention is characterized by having a water tank for holding heating water; a heater for heating bottom of the water tank to generate vapor; at least a part of the heater is inserted into bottom of the water tank. The vapor generator can enlarge the heating area of the water and strengthen the heating effect of the water.

There is provided a water heating and storage system, including a heat-insulated main heated water storage tank for storing hot water. The storage tank consists of top, side and bottom walls, has an inlet for heated water entering the tank at a level below the normal level, and a cold water inlet. The system also includes a consumer hot water outlet, and an external water heater having a controlled electrical heating unit, an outlet port for heated water, connectable to the inlet of the tank, and a water inlet port.

The present invention is an apparatus and method for producing a steam and CO2 mixture, as a super heated dry steam mixture. The apparatus includes a rotatable vessel having a combustion section and a steam producing section. There may also be a dry solid removal, a steam production and solid scrubbing vertical vessel, and a heat exchanger. The vessel is partially filled with spherical bodies, and the sections are partially separated by a partition. A discharge section is located at an end of the steam producing section. A homogenizing section has at least one partition wall guiding flow of gases. The process for producing the steam mixture includes mixing a low quality fuel with an oxidation gas, combusting in a rotating drum filled with spherical bodies, and mixing low quality water with a controlled temperature to generate steam. All liquids convert to gas so that there is no liquid discharge.

A control method of a thermostatic system for a hot water heater is provided where when the water temperature in the hot water heater is too large, a first electromagnetic valve is controlled to be open and a second electromagnetic valve is controlled to be closed. Gas will be transferred via the first gas room to the second gas room. The control of the electromagnetic valves causes a decrease in gas outflow to the hot water heater. When the water temperature in the hot water heater is too small, the first electromagnetic valve is controlled to be closed and the second electromagnetic valve is controlled to be open. The further control of the electromagnet valves causes an increase in the open degree of a gas outlet valve, hence increasing gas outflow.

A radiant gas burner within the combustion chamber of a water heater has a pilot flame created using a raw fuel jet that impinges on an interior surface portion of a flame holding outer burner wall portion, representatively of a metal wire mesh material, and is mixed within the burner with combustion air delivered thereto from outside the combustion chamber. The resulting fuel / air mixture passes outwardly through the impinged upon mesh wall portion, which functions as a pilot flame stabilizing structure, and is ignited to form a pilot flame on the exterior of the burner body. A thermocouple portion of a clogging detection system senses a change in the pilot flame shape caused by particulate clogging of the metal mesh material and responsively terminates further gas supply to the water heater.

An improved boiler that allows distillation of ethanol from a continuous flow of a hydrous feedstock compound, which may be beer or other semi-solid substance. The internal compartment of the boiler is separated into different zones by a plurality of primary baffle plates and secondary baffle plates. The hydrous feedstock compound is heated as it passes from one zone to another zone and ethanol inside the hydrous feedstock compound vaporizes. The ethanol rich vapor is channeled through a collector column and then collected for further processing. The temperature of the hydrous feedstock compound is slightly different from one zone to another zone because of ethanol concentration changes as the hydrous feedstock compound moves from one zone to another. At the last zone, where most of ethanol is removed, the remaining hydrous feedstock compound is removed from the boiler.