Enhancing Electrostatic Precipitator Performance

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1 TAI & CHYUN NEWSLETTER October December, 2017 Enhancing Electrostatic Precipitator Performance ESP SOLUTION Key Interlock System P. 2-3 ESP TECHNIQUE Procedures of Key Interlock P. 5 CASE STUDY ESP FAQ SESSION What you should know about Key Interlock System? P. 10 COMPANY NEWS & UPCOMING EVENTS P Key Interlock Installation at Cement Plant in Thailand P

2 TAI & CHYUN NEWSLETTER October December, 2017 E SP Solution Key Interlock System Dust collecting efficiency is the main concern when it comes to ESP that sometimes site/ operation safety issues are overlooked, jeopardizing life and resources. As your partner in ESP solution, we see the importance of safety system that can prevent related accident and protect workers life as well. Due to ESP is a high voltage equipment, it is highly recommended that the plant personnel follow safety procedures when entering the ESP to eliminate the risk of injury. Therefore, the importance of key interlock system is recommended to be emphasized and implemented. What is key interlock system? Key interlock system is an equipment to help make sure that all electrical sources are turned off and grounded before entering ESP to prevent potential electrical shock or any undesired hazards from high voltage in order to protect mechanical and electrical equipment from being damaged and to ultimately provide safety working environment for the plant s personnel. What are the functions of key interlock system? Key interlock system requires users to follow safety procedure step by step, ensuring that a correct sequential procedure is followed for switching-off and earthing the ESP. Where are the key interlock system located in ESP? Key interlock system include keys, which are available in different profiles, and an exchange box. Key interlocks on ESP are usually installed on 3 main locations - HV control panel, transformers and access doors. ESP SOLUTION Key Interlock System 2

3 TAI & CHYUN NEWSLETTER October December, 2017 E SP Solution Key Interlock System Diagram below displays overview of key interlock system and its application to ESP system. B2 Earth Switch Keys (B1 and B2) Manhole keys (EP 1) A2 A2 HV Part 2 B2 B1 EP1 EP1 Control Panel 2 H.V. Earth Switch 2 Key Exchange Unit B1 A1 Control Panel 1 A1 H.V. Earth Switch 1 HV Part 1 Manhole on the roof Side Manhole Manhole in Dust Hopper T&C Key Interlock : Meet international standards & comply with safety regulation Reliable and robust design of stainless steel or brass to suit customers requirements and application Adaptable with other manufacturer mounting holes by providing adapter plates To get suitable interlock for your ESP, please provide : The number and type of access doors (manholes) at each location The number of T/R sets and control panels Preferred material of key interlock For more information and technical support, please feel free to contact our local sales representative or the technical team. ESP SOLUTION Key Interlock System 3

4 T ai & Chyun received the 1 st CP replacement turnkey project from one of the steel plants in Malaysia for installing at the 1 st field of the ESP, where there was an ESP explosion accident in Accordingly, due to limited outage duration of end user, Tai & Chyun decided to divide the installation period into two phases and to work 24 hour shifts a day in order to comply with end user s outage constraint. The 1 st installation was done in August, 2017, while the rest will be installed in November, 2017 with an aim to bring back ESP normal operation. 4

5 TAI & CHYUN NEWSLETTER October December, 2017 E SP Technique Procedures of Key Interlock System Procedures of Key Interlock System Turn off the main breaker & take out the operation keys Go to ESP s rooftop, plug in the operation keys into all the earthing's switches of T/R set Switch T/R s earthing switch to Grounding Take out the other keys on the T/R set s earthing switch Plug in the keys into the key box on top of ESP in order to take out the interlock keys to open the access doors Turn off the circuit Unlock Key A Take Key A to T/R set Insert Key A to Unlock T/R Grounding Switch Lock Key A to rotate T/R Grounding Switch Pull out Key B & bring to the Key Exchange Box Insert Key B to Unlock Key Exchange Box Lock Key B to Unlock Key C Unlock Key C Pull out Key C & Open Access Door Insert Key C to Unlock Access Door The access door latch will be loosen, then open the manhole * For more details, click our youtube channel to see our illustration of how key interlock system works. ESP TECHNIQUE Procedures of Key Interlock System 5

6 One of government owned power plants in Thailand with power capacity of 1,434 MW (2 x 717 MW) wishes to retrofit all the controllers for the ESPs in the plant. The plant has 2 units of ESPs, in which each unit consists of 16 fields. Tai & Chyun was awarded a contract to supply 32 sets of controllers in total with installation supervision to replace the old controllers for better and reliable operation. 6

7 TAI & CHYUN NEWSLETTER October December, 2017 C ase Study Key Interlock Installation at Cement Plant in Thailand Application Raw mill, cooler & lignite mill ESP at cement plant in Thailand Problem Since safety concern is the major priority of the plant, and ESP is regarded as a key device that applies high voltage to collect dust particles, which can cause a serious risk to human life; therefore, it is necessary for the plant to ensure safety control among plant s personnel, while they are operating the ESP. Solution Tai & Chyun was awarded a contract to supply 10 sets of key interlock systems, which were installed on control panels, T/R sets and access doors at raw mill, cooler and lignite mill ESP for two production lines (10 ESPs in total), in which Tai & Chyun also provided supervision during the installation procedure. Key interlock installation on T/R set Key interlock installation on control panel CASE STUDY Key Interlock Installation at Cement 77

8 TAI & CHYUN NEWSLETTER October December, 2017 C ase Study Key Interlock Installation at Cement Plant in Thailand Key interlock installation on hopper access door Key interlock installation on side access door Benefit After key interlock system installation, it can improve safety and prevent related accident among the plant s personnel no matter during ESP inspection or maintenance. Accordingly, key interlock system will require users to follow safety procedure step by step prior to entering ESP. Therefore, it can ensure that all electrical sources are turned off and grounded before the plant s personnel can enter ESP. Special Edition Tai & Chyun had launched special edition, focusing on power industry. The content inside consists of articles regarding future outlook for power industry with an upward trend of air-pollution emission, the rising public expectation towards clean air quality, and an emphasis role of ESP in controlling air emission among power industry, together with case studies related to ESP efficiency improvement that took place at various power plants. Read our special edition here! CASE STUDY ESP Key Performance Interlock Enhancement Installation at via Ce- RDE & HFTR Upgrade at Coal-fired Boiler ESP 8 8

9 T ai & Chyun recently received the order for 10 fields of RDE replacement from one of our Indonesian utility plant customers, ai & Chyun which recently has power received capacity the order of for 3,400 1 field MW of DE (4x400 and and 3x600 MW), aiming to improve operating voltage and current, together with dust collecting efficiency in order to lower down emission. 9

10 TAI & CHYUN NEWSLETTER October December, 2017 E SP FAQ Session What you should know about Key Interlock System? Question: What are the advantages of the key interlock system? Answer: The major advantages of the interlock as below Ensure your own safety during maintenance and shut down Enforce safety procedures during start up and shutdown Energize system by authorized person to avoid human error Question: Where are the key interlock systems located in ESP? Answer: The interlock set is located at 4 locations, which are main breaker, T/R set earth switch lock, control key box, and access doors. Question: Do we need to request for an engineer to supervise the installation & testing? Answer: - If the plant already has interlock system, you can self-install the new one. - If the plant has no experience about interlock and request for help 1 day of supervision for each ESP will be suitable. ESP FAQ SESSION What you should know about Key Interlock System? 10

11 TAI & CHYUN NEWSLETTER October-December, 2017 Company News T&T IAC, THAILAND Tai & Chyun participated and sponsored in T&T International Aerosol Conference (T&T IAC) on 7 th- 8th August, 2017 at Prince of Songkla University, Thailand. The conference emphasized on research of aerosol science, air quality and air pollution control. Tai & Chyun was invited to present ESP performance Upgrade and Enhancement of ESP in better O&M for Industries PM emission which will help to reduce air pollution from industries. To see more photos, click here SURABAYA ESP TRAINING SEMINAR 2nd ESP Training Seminar in Indonesia was arranged on 10 th August, 2017 at Vasa Hotel Surabaya. The participants came from many industries such as Semen Padang, Cogindo, PT Smelting etc. Tai & Chyun would like to thank every participants for supporting and giving contribution in the seminar. We wish to see you again in next seminar. To see more photos, click here ELECTRIC, POWER and RENEWABLE ENERGY, INDONESIA Tai & Chyun exhibited in Electric, Power and Renewable Energy (EPRE); the largest electric & power exhibition in Southeast Asia, in booth #3323 on 6th-9th September, 2017 at Jakarta International Expo. In this event, Tai & Chyun presented the solutions for emission control in power industries. Thank you for all visitors who dropped by our stand and discussed with us. We are looking forward to assist you in the future. To see more photos, click here For any enquiries, please contact our local sales representative or at seminar@taichyun.com.tw Stay tuned with our latest COMPANY NEWS 11 11

12 TAI & CHYUN NEWSLETTER October-December, 2017 Company News POWER GEN ASIA, THAILAND Power Gen Asia in this year was held in Thailand on 19 th -21 th September, 2017 at Bitech. The event gathered more than 200 power equipment and technologies suppliers. Tai & Chyun was one of the air pollution control providers that exhibited in booth #P38 as our first time joining this event. To see more photos, click here PHILIPPINE COAL PLANT USER GROUP, PHILIPPINE PCPUG arranges 18th technical forum under the theme of bridging energy security with social acceptability during 5 th -6 th October, Tai & Chyun exhibited the booth and presented paper Coping with Stringent Emission Level on Aging Coal -Fired Plants on 6 th October, TCMA TECHNICAL WORKSHOP AND EXHIBITION, THAILAND 18 th TCMA Technical Workshop and Exhibition was hosted by Thai Cement Manufacturer Association on 6 th October. Tai & Chyun was one of the sponsors and exhibited the booth there. The workshop provided green solution and grinding technology in cement industries. To see more photos, click here For any enquiries, please contact our local sales representative or at seminar@taichyun.com.tw 12 Stay tuned with our latest news, click to follow us at 12 COMPANY NEWS

13 TAI & CHYUN NEWSLETTER October-December, 2017 U pcoming Events.. Booth no th- 26th October, 2017 National Exhibition Construction Center, Hanoi Cement Expo Vietnam is the specialized cement and concrete event that bring international cement equipment and services suppliers. Meet with us at booth no.38, We are ready to discuss with you in regards to ESP issues in your plant. SINGAPORE ESP TRAINING SEMINAR Date: Friday 24th November, :15 16:30 Place: Holiday Inn Singapore Atrium ESP training seminar now is coming to Singapore with the theme of strategy for PM emission control. The seminar will intensively provide ESP knowledge, which will help you to deal with emission including special content Development of Innovation Control Technologies for Reducing Dioxin Emission presented by Prof. Moo Been Change; President of Taiwan Association for Aerosol Research. For registration, please visit us 13 Stay tuned with our latest news, click to follow us at UPCOMING EVENTS 13

14 TAI & CHYUN NEWSLETTER October-December, 2017 Tai & Chyun s Company Trip to Taichung, Taiwan Contact Us! Taipei Office: Bangkok Office: 10F, No. 250, Sec. 1, Nei Hu Rd., Taipei, Taiwan Tel: Fax: Na Nakorn Building: No.99/349 Chaengwattana Road, Thungsonghong, Laksi, Bangkok 10210, Thailand Tel: Fax: Mobile: Manila Office: Unit 1502 Bayview International Tower 3, Roxas Blvd. cor. NAIA Rd., Paranaque City Tel: Fax: International Technical Support Numbers: Malaysia Mobile: Vietnam Mobile: CONTACT US +60-(0) (0) Surabaya Office : Unit 610, 6F, Spazio Office Building, Jl. Mayjend Yono Soewoyo Kav.3, Graha Famili, Surabaya, 60226, Jawa Timur, Indonesia Tel.: (5) Fax:

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