ISO 9001 www.dh.co.kr www. dh.co.kr Certificate Number 32533 We wish to communicate with our customers. OHSAS 18001 If you would like any further information about DongHwa Entec, Certificate Number C 0082 please visit our website (www.dh.co.kr). Gland Condenser DongHwa Entec cares for your concerns.
▶▶Engineering technology for the future
Oil Cooler - HEAT EXCHANGER TO COOL THE LUBRICANT OIL FOR ROTATING MACHINERY Heat Exchanger Solution Partner for Steam Turbine
Our company endeavor ceaselessly to develop new products and quality improvement
Deaerator
Deaerator is defined as a mechanical device for removal of dissolved gases, especially oxygen and carbon dioxide from water. And deaerator heat the feed water and maintain regular N.P.S.H of feed water pump. Spray & tray type is utilized for land-use deaerator, and stray • MAIN(SURFACE) CONDENSER & scrubber type is utilized for marine-use deaerator. • EJECTOR CONDENSER • GLAND CONDENSER WITH EJECTOR Donghwa Entec developed major part like spray valve, tray, Head Office and Factory and scrubber and still research for more high efficiency of 7, Noksansandan 261-ro, Gangseo-gu, Busan, Korea • GLAND CONDENSER WITH EXHAUST FAN deaerator. TEL : +82-51-970-1000 FAX : +82-51-970-1001 • OIL COOLER Donghwa Entec has ability of thermal design, strength Hwajeon Office and Factory • DEAERATOR calculation, purchase material, and manufacturing. 20, Hwajeonsandan 1-ro 63beon-gil, Gangseo-gu, Busan, Korea • H.P / L.P HEATER TEL : +82-51-970-1100 FAX : +82-51-970-0710 R&D Center 7, Gwahaksandan-ro 305beon-gil, Gangseo-gu, Busan, Korea H.P / L.P Feed Water Heater TEL : +82-51-970-0711 FAX : +82-51-970-0730 DongHwa Entec (Shanghai) Co., Ltd. Feed water heater is utilized to heat the feed water with steam No.2508 JiangShan Road Luchaogang Shanghai 201308 P.R.China from turbine. And this is served to improve the cycle efficiency of TEL : +86 (0)21-5197-5001 FAX : +86 (0)21-5197-5005 power plant and to minimize the thermal effect result form the Sister Company difference of temperature between steam generator and feed water. Generally, H.P feed water heater is located posterior to DongHwa Machinery & Engineering Co., Ltd. deaerator and L.P feed water heater is prior to deaerator. 173, Hwajeonsandan 1-ro, Gangseo-gu, Busan, Korea TEL : +82-51-971-3455 FAX : +82-51-971-5450 Feed water heater use u-tube usually and has 3 zone of www.donghwame.com desuperheating zone, condensing zone and sub-cooling zone. Donghwa Entec has ability of thermal design, strength DongHwa Pneutec 36, Noksansandan 261-ro, Gangseo-gu, Busan, Korea calculation, purchase material, and manufacturing. TEL : +82-51-974-4800 FAX : +82-51-831-3772
www.dhkomp.co.kr DH No. 201411 Heat Exchanger Surface Condenser
Turbine Exhaust Steam Inlet The function of surface condenser is to maintain back pressure & the power of turbine for generator driver, for Steam Turbine compressor driver and propulsion of LNG carrier while exhausted steam from turbine is condensed. The condensed feed water in surface condenser is recirculated to boiler through feed water heater and deaerator. The kind of surface condenser is classified as top entry type and side entry in accordance with location of condenser & turbine. And circular type condenser is used for small & medium size and square type condenser is used for large size of thermal power plant. Water Outlet Donghwa Entec has ability of thermal design, strength calculation, purchase material, and manufacturing. And if customer requires, 2 stage of ejector vacuum system can be supply.
Product Feature • Design Code • Applicable Material For Plant - Titanium Stainless Steel, - ASME Code Cu-Alloy, 904L, C.S - European PED • Max. Manufacturing - China SELO Condition - API Code - Weight: 400ton - Korea KGS / KOSHA - Japan KHK / JPVC / MHLW - TEMA R,C and B - Russian GOST - ALL CLASS - Others Country Local Code ( Algeria, Singapore, ... ) Condensate Out For Marine Plant - All nation's Code including ABS, • Tube Arrangement LR, DNV, GL, BV, KR, NK, RINA
Water Inlet Surface Condenser Package
EXHAUST SILENCER ATM HOGGING EJECTOR AIR Ejector Vacuum System 4" PI VAPOR LINE PI List of Certificates 1ST STAGE EJECTOR 1 A.R.V PT 1ST STAGE EJECTOR 2 3 4 ASME American Society of 1 2ND STAGE EJECTOR ALM Mechanical Engineers, USA (PP, S, U, U2) VAPOR WATER OUTLET 2ND STAGE EJECTOR OUTLET FLASH ~ NATIONAL BOARD CHAMBER AFTER CONDENSER PI 1. HEAD The National Board of Boiler & Pressure SECTION INTER CONDENSER SECTION CONDENSATE LINES TO 2. MOTIVE STEAM BE FREE DRAINING Vessel Inspectors(PP, S, U, U2) SURFACE CONDENSER 3. MIXING TUBE WATER INLET 5 4. DIFFUSER SELO Manufacture License of Special Equipment TRAP 2 SUCTION 5. NOZZLE People's Republic of China TRAP The vacuum degree is decreased if the air is penetrated to vacuum ANSI American National Standard Institute, USA LT LV LG LT surface condenser for turbine and result the decrease of power of TEMA Tubular Exchanger Manufacturers FD LIC turbine. Therefore steam driving ejector is necessary in order to Association, USA FC remove air in vacuum surface condenser and ejector condenser is DIN Deutsche Industrie Normen, GERMANY LV necessary in order to condense the driving steam. Usually ejector JIS Japanese Industrial Standard, JAPAN vacuum system is consisted of 1st ejector, inter condenser, 2nd ejector KS Korean Industrial Standard, KOREA VlALVE & INSTRUMENT SCOPE OF EQUIPMENT and after condenser. Comparing to vacuum pump, maintenance is not API American Petroleum Institute 3 needed because there is not rotation machinery using electricity. CONTROL ROOM PT PRESSURE TRANSMITTER 1 SURFACE CONDENSER
ATMOSPHERIC RELIEF VALVE PI PRESSURE INSTRUMENT 2 INTER / AFTER CONDENSER Donghwa Entec has testing system in R&D center and design and WITH VACUUM EJECTOR SYSTEM LT LEVEL TRANSMITTER LV LEVEL CONTROL VLAVE 3 PUMP SYSTEM manufacture with our own developed computational program.
CONDENSATE PUMP PUMP LG LEVEL GAUGE TRAP LEVEL GAUGE 4 AUXILIES PARTS