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V30a Vacuum Filter

Applications in a Power Plant

In the modern world, we can not live without electricity, the need has increasing over the last 10 years with app. 10%, we users demand more and more power. The reason is higher no. of electric machines, and equipment in every day life. In the homes as well as in the industry. For many years the central power plants has produced the necessary electricity, but today wind turbine, wind parks and decentral power plant are producing more and more of the the electricity. Coal and oil where the main fuels in the past and still is, but today more environment friendly fuels are also being used, like wind, water and gas. The application on Power Plant are mainly Lubrication oil for steam and gas turbines, and feed pumps. Gears on coal mills and reductions, hydraulic for pitch systems, coal cranes, controlsystems, etc. these systems comes in almost all sizes.

The biggest focus has always been on the lubrication oil for the bearings on the turbines. This oil has to be very clean and water free at all times. Recommended is ISO 4406 code 16/13 and water level between 200 -500 ppm. Many are at that level in the beginning, but will they stay there. On the steam turbines the oil and steam is only separated by the labyrinth seal. Pressure in the oil should keep the steam from getting into the oil, but it is not always so. Therefore the steam will mix with the oil, and the water level increase. Also many turbines is running at a high temp. around 60-70 degrees. High temp. like that, the oil will oxidate quicker, forming resin. In the past turbines was supplied only with in-line filters, but today more and more Power Plants demands turbines equipt with an off-line filtration system. Some of the more contaminated system are the gear oil, like coal mill, reductions gear and combustion air preheater. All these systems generates a lot of particles, but also particles from the surroundings gets into the oil. The oil is normally very contaminated and recommended is ISO code 17/13, and water level below 300 ppm. Most of the times water is not the big problem, but because of condense the water level can increase quickly. Most of the application in the Power Plant industry is hydraulic systems. They are smaller system and sometimes forgotten, but clean oil is just as important on hydraulic as on lubrication oil. Application like coal cranes, control systems, pitch systems etc., cleaning level is recommended at ISO 14/11, which is cleaner the new oil. Furthermore application as control system on turbines with phosphate ester and transformers are some of the other oil systems that can be of interest.

Oil types Lube, gear, hydraulic and transformer oils are the most used ones, but in many different viscosities from hydraulic 32 oil, up to a 320 gear oil. Phosphate ester and other fluids are also used in the Power Plant industry.

CJC Solution CJC have different filters for different problems, therefore for steam turbines we use a Filter Separator with aut. Water discharge: PTU3 27/- P-EPW. For gas turbines we use Fine Filter HDU 27/- P, the size of the filter is depending on the size of the lube oil system. For gear and hydraulic, most of the filter types used is Fine Filter HDU, from 15/25 to very big 27/-. Because the oil viscosity differ from application to application, we have build many different filter for many different problems, but nothing we can not solve.

Test results

APPLICATION STUDIES FOR THIS APPLICATION
Hydro Power - Statkraft Main Turbine on lubricating system - Midtkraft Control Oil System on Hydro Tubine Scottish Hydro Electric PLC Transformer Water - Københavns Energi Transformer Gas - Københavns Energi

Reference C.C.Jensen has over the years supplied many filter to the Power Plant industry, mostly for lube oil, but also for gear and hydraulic. All central Power Plant in Denmark has CJC, and app. 90 % of all turbine lube oil, (steam & gas) is equipt with CJC. We supply to Alstom, ABB, AEG, Siemens and Bloom & Voss, just to mention some manufacture. The 2 producers of electricity in Denmark; Elsam and Energi E2, is also a big costumer. Austira SGP AG Bahamas BWSC, Clifton Pier Barbados BWSC, Bridgetown Bermuda BWSC, Hamilton Chile Hidroelectrica Aconcagua Hidroelectrica Codelco Chile-Pangal Croatia Hrvatska Elektroprivreda d.d. Denmark Elsam A/S Nordjyllandsværket Fynsværket Skærbækværket Enstedværket Esbjergværket Studstrupværket Herningværket Århus Nord Kraftvarmeværk Skjern Kraftvarmeværk Ringkøbing Kraftvarmeværk Rudkøbing Kraftvarmeværk Horsens Kraftvarmeværk Måbjerg Kraftvarmeværk Odense Kraftvarmeværk Haderslev Kraftvarmeværk Vejen Kraftvarmeværk Energi E2 A/S Amagerværket Asnæsværket Avedøreværket H.C.Ørstedværket Kyndbyværket Masnedøværket Stignæsværket Svanemølleværket Næstved Kraftvarmeværk Silkeborg Kraftvarmeværk Hjørring Varmeforsysning AVV I/S RENO NORD I/S RENO SYD I/S Randers Kraftvarmeværk I/S Østkraft Eqypt Sidi Krir Estonia EstiPower Finland Meri Pori IVO Imatran Woima Indonesia P.T. Tiga Ikan Engineering Italy SIMA S.P.A Ireland ESB Iceland Rarik Rafal Germany Sulzer Thermtec Sulzer Hydro Grosskraftwerk Union AG, Berlin Grosskraftwerk Union AG, Erlanger Grosskraftwerk Union AG, Volklingen Bayer AG Bayerwerk, Leverkusen Aluminium. Walzwerke, Singen Volkswagen Werke AG, Wolfburg Hamburgische Electricitatswerk, Hamburg Sweden SVE Kraft AB Graningerverkens AB, Degerforsen Graningerverkens AB, Lovon Stockholms Energi AB Nobel Kraft AB, Ljungaverk Nobel Kraft AB, Nobel Balforsen Kraft AB, Hammarforsen Balforsen Kraft AB, Lycksele USA Denver City Energy Associetes Montenay Pacific Power Corp. FPLE Vansycle LLC / Green Ridge Service Powder River Coal Company Colmac Energy Inc. GWF Power Systems Co. Inc. Wadham Energy Ltd. Partnership Multitrade of Iottsylvaniea Co. L.P Dominion / Virginia Power Snohomish County P.U.D Panda-Rosemary Limited Partnership NEPCO / Coyote Springs 2 LLC, Avista Puget Sound Energy Seawest Windpower Inc. Wisconsin Public Service Corp.

PRODUCTS USED ON THIS APPLICATION
HDU PTU2 V30

1. Turbine Main Lube: This is the largest system in a power plant. For reference a 300 MW turbine contains approx. 40,000 ltr. usually ISO VG 46 oil.
Contamination: Water
CJCTM System: PTU2

2. Turbine Control System: The hydraulic system of the turbine. Could be either mineral oil or Phosphate Ester,we can filter both:
Contamination:
Mineral oil: Particles, water & resin
Phosphate ester: Particles, water, resin & acid
CJCTM System: HDU + ALOU

3. Boiler Feed Pump: Can be both steam and electrically driven. Volumes 2,000 to 4,000 ltr. One combined oil system for lube, gear and control oil.
Contamination: Water and particles
CJCTM System: PTU2

4. Coal Crane Hydraulics 200 - 1,000 ltr. hydraulic oil.
Contamination: Particles and water
CJCTM System: HDU

5. Coal Mill Gear Box: 400 - 1,700 ltr. gear oil (150 - 460 cSt).
Contamination: Coal dust
CJCTM System: HDU

6. Low / High Pressure By-pass: Only used in co-generation plants for central heating:
Contamination: Water
CJCTM System: PTU2

7. Fresh Air - Suction Draft Blowers: Hydraulic and lube system for the controllable pitch fan.
Contamination: Particles
CJCTM System: HDU

8. Various Valve Systems: Hydraulic Systems:
Contamination: Particles and resin
CJCTM System: HDU

1. Cooling Water Pump: Lube oil system. The pump could pump 25,000 m²/hour.
Contamination: Water and particles
CJCTM System PTU2

10. GAFO / LUFO: Gear oil system for gas and air preheaters on DeNOx plants 400 - 1,000 ltr. ISO VG 320 - 460 oil.
Contamination: Particles and water
CJCTM System. HDU

11. Non-return Flaps for Bleed Steam: Small hydraulic system running on mineral oil or phosphate ester.
Contamination: Particles and acid
CJCTM System: HDU

12. Diesel Fuel: Back-up fuel for gas fired turbines.
Contamination: Particles and water
CJCTM System: PTU2

13. Transformer: The transformer can contain up to 100,000 ltr. of insulating oil. The water content is not to exceed 20 ppm.
Contamination: Water and resin
CJCTM System: V30 (Vacuum)

Power Stations: