Stainless steel economizers and shell-and-tube heat exchangers

Specifications

Country of manufacture

Turkey, Kırıkkale

KEJ heat exchangers

24,000–5,317,000 kcal/h

EKO water-tube economizers

50,000–800,000 kcal/h

Heat exchanger models

KEJ-1 … KEJ-24, 24 models

KEJ heat output, kW

≈ 28–6,180 kW

KEJ heating surface

1–30 m² (by outer tube diameter)

KEJ dimensions

shell diameter D 270–600 mm, height H 640–970 mm, length L 1,120–2,930 mm

KEJ weight

80–750 kg

KEJ design

counterflow shell-and-tube unit: FE37 steel shell, tube bundle of copper tubes to TS 443 with wall thickness from 1 mm

KEJ maintenance

removable tube bundle: the tube sheet is bolted with a gasket between two ring flanges

KEJ connections

steam inlet and outlet, heating circuit flow and return; ports for control and safety devices, fill and drain valve; lifting eye

KEJ insulation

stitched rock wool mats, density 90 kg/m³, 50 mm thick, faced with wire mesh; galvanized steel casing from 0.5 mm thick; non-galvanized parts painted with 2 coats of non-combustible paint

KEJ installation

one or two supports of the required height, fixed with studs to a concrete base (250 kg of cement per m³)

KEJ versions

tube bundle of steel tubes (PN10) or copper tubes 1 mm (PN10) and 1.5 mm (PN16); U-tube bundle and other shapes on request; version for generating steam at up to 4 atm with an evaporation zone and steam dome

Economizer models

water-tube EKO 50 … EKO 800, 12 models; fire-tube EKO-02 … EKO-15, 6 models

Water-tube EKO, kW

≈ 58–930 kW

Water-tube EKO heating surface

17–277 m²

Water-tube EKO design temperatures

flue gases 190 °C inlet, 130 °C outlet; boiler water 40 °C inlet, 45 °C outlet

Water-tube EKO dimensions

width A 900–1,800 mm, depth B 450–1,100 mm, height H 1,500–2,500 mm; flue connections Ø1/Ø2 180–450 mm

Water-tube EKO materials

imported 316 stainless steel tubes with 316 steel spiral fins, 316 sheet casing, rock wool insulation, powder-coated mounting parts

Fire-tube EKO

stainless steel fire-tube design: flue gases pass through 42.4 mm AISI 316Ti tubes, lower flue duct of AISI 316Ti

Fire-tube EKO dimensions and weight

B 850–1,100 mm, height H 1,300–1,950 mm, chimney outlet diameter C 300–450 mm; weight 100–695 kg

Economizer effect

the fire-tube economizer raises boiler efficiency by up to 10%; in steam boilers it preheats return water before it enters the boiler, which improves boiler operating safety

Economizer application

gas-fired hot water and steam boilers; installed at the boiler flue gas outlet, simple connection to the chimney and pipework

Condensate handling

the casing resists corrosion from flue gas condensate; the design allows free condensate drainage

Fire-tube EKO connection

system return water passes through the economizer and, once preheated, goes to the boiler inlet; flue gases enter at the bottom from the boiler flue and exit at the top into the building chimney

Factory

Kubuş Kazan, Kırıkkale (Turkey): making boilers since 1948, about 100 employees, 10,400 m² of workshops

Logistics

Shipped from

factory in Kırıkkale, Turkey

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