Senin, 24 Agustus 2009

It pays to talk with Minco the expert of gas turbine cleaner

What is the problems should be avoided ? We offer you the best solution how to solve it

‘An average 46,500KW power plant gas turbine with normal fouling and showing just a 3% power decrease and 1% heat rate increase can suffer a loss of performance costing more than $500,000 every year.’

Fouling refers to the accumulation of unwanted material on solid surfaces causing an undesirable roughness. In a gas turbine compressor this means deterioration in the aerodynamic form of the aerofoil blades and annulus surfaces, resulting in reduced air flow, lower efficiency and a lower pressure ratio.

These losses of performance are indicated by a decrease in power output and an increase in heat rate which means lost profits and increased environmental damage.


TYPES OF FOULING


Hydrocarbons
The worst fouling problems are caused by mixtures of liquids and oils or generally hydrocarbons, which deposit on the blades and form an oily film which catches dry particulate matter. This could be caused by the burnt fuel exhausts emitted from turbines, and can be particularly severe if less clean fuels such as crude oil are used. Oil leaks are another major problem and even smoke from surrounding industries, cities and vehicles contribute toward the fouling.

Salt water
As the air ingested into the compressor is heated the moisture in the air evaporates, leaving salt and dissolved constituents to deposit on the blades. Not all salts are soluble and when exposed to the operating temperatures inside the compressor these deposits can become firmly baked onto the compressor surfaces. Salt also gives rise to blade corrosion and should be promptly removed.

Dust and sand
They generally cause erosion and can lead to fouling when combined with other constituents such as oily vapours.

Other causes
The atmosphere also contains numerous other contaminants including farming chemicals, plant spores, insects, smog. Even some additives in cleaning products, if not rinsed off properly, can all contribute to the fouling.

HOW TO CLEAN THE FOULING ?
What do we have to do ? you really need gas turbine cleaner

Off-Line (Soak or Crank) Washing;

Off-line washing is conducted with the gas turbine in a cooled state, by injecting cleaning solution into the compressor while it is being turned at cranking speed. Once the chemicals are injected into the compressor, the gas turbine is shut off and allowed to come to a halt. The chemicals are then left to soak for 20-30 minutes, before being thoroughly rinsed with demineralised or deionised water. The efficiency of crank washes is very high, and the power recovery is close to the original level or the level reached after a major overhaul. When to Wash? Online washing needs to be performed regularly to decrease the fouling rate but the timing of offline washing is a more complex proposition. When determining the best time to perform an offline wash all of the following must be considered.
  • Environmental Factors such as the amount and type of contaminants in the local air supply.
  • Time Constraints on the operator owing to demand for the turbine to be operational.
  • Acceptable Level of Power Degradation to the user.
These variables mean there cannot be one universal cleaning procedure. The most beneficial regime of online and offline washing is usually developed through trial and error and needs to be customised for every compressor.

Minco is happy to work with operators to help them develop the best washing solution for their specific needs. Our products are tailored to meet the online and offline washing requirements of all types of gas turbine compressors, and to deal with all types of fouling effectively.

There's no substitute for washing with quality cleaning chemicals.

Washing will remove fouling deposits and restore performance, but full power may not always be regained once significant fouling occurs.

It is vital that the compressor is washed regularly to help maintain performance. Regular washing may also slow the progress of corrosion, thereby increasing blade life and reducing the contribution of corrosion to the formation of fouling deposits.

On-Line (Fired) Washing;
On-line washing is the process of injecting a solution into the compressor while running at full speed, usually at base load. This is advantageous as it can be performed without having to shut the machine down. High operating temperatures of compressors, the high centrifugal forces on the injected liquid and the short contact time of the wash solution with the fouling all mean this method only has a limited effectiveness. It should only be used as a preventative measure to prolong the time between off-line washes and not as a substitute.

For more details, please make a contact with the sole agent in Indonesia is Pt Zefa Valindo Jaya, Phone: (o21) 8873531 Fax: (021) 8873532 Email: minco@zevanya.com

Rabu, 03 Juni 2009

Turbokleanz dan Protoklenz GT produk pembersih Gas Turbine telah mendapatkan approval dari mayoritas GT's OEM

Untuk keperluan GT compressor water wash, mungkin banyak produk yang ditawarkan di pasaran, namun perlu dipastikan bahwa setiap produk detergent/kimia pembersih GT yang ditawarkan harus memenuhi peryaratan atau mendapatkan approval dari OEM yaitu pabrikan gas turbine tersebut.
Turboklenz dan Protoklenz GT sebagai produk dari MINCO UK LTD telah mendapatkan approval dari mayoritas pabrikan gas turbine (GT OEM) di dunia. Berikut daftar approval yang kami miliki, dan hal ini menunjukkan jaminan kwalitas produk-produk kami.

Gas turbine original equipment manufacturers approval status for ProtoKlenz and TurboKlenz ;

ABB ALSTOM (UK) ALSTOM (ABB) Switzerland ALSTOM (EGT) France ALSTOM (EGT) Germany ALSTOM (EGT) UK Arbejdstilsynet Denmark CEFAS (HOCNF) (PARCOM) CEFAS (HOCNF) Norway Dresser-Rand GE Industrial Aero Derivative GT’s GE Power Systems & Licensees IHI – Japan Mitsubishi Heavy Industries Rolls Royce Industrial Gas Turbines Siemens UK/Germany/Sweden Solar Stewart & Stevenson Thomassen International b.v UBA 39250001 Germany United States South Coast AQMD Clean Air Solvents Certificate Westinghouse (complies) WGK-1 Germany Welsh Water Authority (Discharge) ProtoKlenz GT-SC GE Industrial Aero Derivative GT’s GE Power Systems & Licensees Siemens UK TurboKlenz ABB ALSTOM (UK) ALSTOM (EGT) France ALSTOM (EGT) Germany ALSTOM (EGT) UK GE Industrial Aero Derivative GT’s GE Power Systems & Licensees IHI – Japan Mitsubishi Heavy Industries Siemens Solar Stewart & Stevenson Thomassen International b.v UBA 39250002 Germany WGK-2 Germany
Aeroplane Engine approvals GE Aircraft Engines MIL-PRF-85704C Types II & III Pratt & Witney (conforms) Rolls Royce Aero Engines
ProtoKlenz/TurboKlenz OEM approvals for on/off-line compressor washing

Demikian informasi ini untuk dapat diketahui para customer yang membutuhkan gas turbine cleaner/ gt compressor water wash with detergent/chemical cleaning for gas turbines.

Hubungi kami untuk info lebih lanjut.

Kamis, 30 April 2009

Turboklenz dan Protoklenz GT Kimia untuk Waterwash/Pembersih Compressor Gas Turbine

Turbin Gas merupakan mesin rotasi yang sangat menentukan lancarnya suatu operasi pembangkit listrik tenaga gas turbine. Beberapa aplikasi di industri pembangkitan dengan turbine gas mengalami kerusakan sebelum waktu yang telah ditetapkan dalam desain, atau performa turun secara drastis dalam waktu singkat sehingga menimbulkan resiko kerugian yang sangat besar. Salah satunya adalah disebabkan permasalahan penumpukan kerak/ kotoran yang terjadi pada air compressor Turbin Gas tersebut. Turbin Gas dianggap sebagai peralatan kritis, karena bila terjadi kerusakan maka proses produksi akan terhenti dan kerugian yang ditimbulkan sulit dihindari. Oleh karena itu perawatan dan perbaikan terhadap Turbin Uap dan Gas sangat penting untuk diketahui dan dimengerti, sehingga dapat dioperasikan yang sesuai dengan rancangannya.

PT Zefa Valindo Jaya adalah sole Agent MINCO UK LTD di Indonesia untukproduct ‘gas turbine cleaner’ atau water wash of gas turbines dengan brand ProtoKlenz-GT and TurboKlenz memperkenalkan produk unggulan kami untuk para operator gas turbines.

Adapun strong point dari ProtoKlenz dan Turboklenz GT adalah :
  1. Dapat digunakan pada saat turbin on-line maupun off-line, sehingga tidak mengganggu proses produksi.
  2. Free rinsing, tidak menimbulkan limbah sisa pemakaian.
  3. ISO 9002 QA system
  4. Tidak menyebabkan korosif terhadap material.
  5. Effective and Efficient, tidak mengganggu proses kerja turbin yang menyebabkan kerugian biaya dan waktu kerja (down-time).
  6. Health & safety and environmental impact, ProtoKlenz dan Turboklenz kimia berbahan dasar air dan solvent sehingga aman dan ramah terhadap manusia serta lingkungan.
Bagi yang berminat untuk mendapatkan brosur/product data sheet, dapat mengunduhnya/download hanya dengan meng-klik ProtoKenz GT dan TurboKlenz.

Demikian kami informasi ini dan kami akan sangat senang jika dapat bermitra dengan anda yang membutuhkan produk dan layanan kami. Dan atas perhatiannya dan kerjasamanya kami sampaikan terima kasih.