HP Heaters Dealers in Ahmedabad

The needs of the power generation industry include year-in and year –out reliabity, optimum performance for maximum efficiency, and absolute on-time delivery to meet plant outage schedules. All of Mazda feed water heaters are designed in accordance with HEI standards, TEMA and ASME section VIII code. Mazda uses state-of –the art computer programs to perform the thermal-hydraulic and mechanical design of each feedwater heater we fabricate. Each Mazda Feed water heater will contain from one to three separate heat transfer areas of zones including the condensing, desuperheating and sub-cooling zones. Economics of design and particular performance needs of your plant will determine the design parameters of your feed water heaters from Mazda. Mazda thorough understanding of these factors enhances its ability to communicate clearly with power design engineers . Mazda designs enable power engineers to anticipate maximum efficiency from the turbine extraction steam in preheating the boiler feedwater.

a low-pressure feed water preheater or heater in power plants, heated with bleed steam and having a two-pass tube bundle of the tube sheet type of construction, has a carrier design for the tube bundle having side plates running parallel to the tube bundle and one or more supporting plates disposed perpendicularly to the tube bundle. In the center of the bundle between the cold and the hot leg are suction tubes through which non-condensable gases are drawn off in the zones of lowest pressure. The supporting plates are each made of a single piece and are thus continuous, and the partition consists of individual sheet-metal parts which are connected to the supporting plates. In one embodiment, the sheet-metal parts of the partition and the supporting plate are connected to one another by indentations on each side of the sheet-metal part which faces the supporting plate and by a corresponding opening in the supporting plate. Lp feed water heater’s pressure ratings range between 400 and 1,500 psig. lp feed water heaters are designed as single zone with a condensing section or two zones with a condensing section and integral sub cooler section. Drain coolers are employed because of heat consumption improvement in case of drain introduction into the lower heater through the level control valve. Condensing heaters without a sub cooler section have better heat consumption if the drain flows forward by using a drain pump. A drain pump is used usually for the drain of lp heaters.   high-pressure feed water heater tube sheet high-pressure heaters are designed as two zones or three zones with a condensing section, desuperheater and integral sub cooler. The use of a desuperheater reduces the terminal temperature difference (ttd) of the entire feed water heater. A negative ttd of up to 3°c can be achieved by the use of a desuperheater, depending on the steam inlet temperature. The tube wall temperature must be over the local saturation temperature in all operation conditions. The use of a separate cross-connected desuperheater improves the heat consumption and increases the feed water temperature at the boiler inlet. Hp feed water heater’s pressure ratings range from 1,500 to 4,800 psig. drain coolers are employed because of heat consumption improvement in case of drain introduction into the lower heater through the control valve. These types of hp feed water heaters have been developed to meet the increasingly severe operating conditions in large turbo generator plants. These may include high heat rates, sudden load variations and frequent start-ups and shut–downs in case of peak-load power plants.

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