Krabi Waste-to-Energy Project in Thailand
Pressure vessel (yālì ró ng qì), English: pressure vessel refers to a closed device that contains gas or liquid and carries a certain pressure. In order to implement scientific management and safety inspection more effectively, pressure vessels are divided into three categories according to working pressure, medium harmfulness and its role in production in China's Pressure Vessel Safety Supervision Regulations. And for each category of pressure vessels in the design, manufacturing process, as well as inspection items, content and methods to make different provisions. Pressure vessels have implemented the safety and quality licensing system for imported goods, and goods that have not obtained the import safety and quality license are not allowed to be imported. According to the latest TSG21-2016 "Safety and Technical Supervision Regulations for Fixed Pressure Vessels", it should be divided into the first group of media and the second group of media according to the media, and then classified into categories I, II and III according to the pressure and volume. The so-called first, second and third categories of the old capacity regulations are no longer applicable.
A pressure vessel is a closed container that can withstand pressure. The use of pressure vessels is extremely wide, it has an important position and role in many sectors such as industry, civil, military and many other fields of scientific research. Among them, the pressure vessels used in the chemical industry and petrochemical industry are the most, and the pressure vessels used in the petrochemical industry alone account for about 50% of the total number of pressure vessels. Pressure vessels are mainly used for heat transfer, mass transfer, reaction and other technological processes in the chemical and petrochemical fields, as well as storage and transportation of pressurized gases or liquefied gases; they are also widely used in other industrial and civil fields, such as air compressors. All kinds of special compressors and auxiliary machines of refrigeration compressors (coolers, buffers, oil-water separators, gas storage tanks, evaporators, liquid coolant storage tanks, etc.) are pressure vessels.
Key words:
Krabi Waste-to-Energy Project in Thailand
Classification:
Product Introduction
Regular blowdown expansion tank
The periodic blowdown expansion tank reduces the pressure and expands the volume of boiler blowdown water, thereby separating secondary steam from waste hot water. The secondary steam is discharged to the atmosphere or utilized as a heat source, while the waste hot water is typically routed to an effluent cooling pond and then discharged into the groundwater system.
Continuous Blowdown Expansion Tank
The continuous blowdown flash tank is connected to the boiler’s continuous blowdown outlet and serves to reduce the pressure and expand the volume of the boiler’s continuous blowdown before discharging it. The secondary steam is routed through a dedicated pipeline, typically to the deaerator, while the waste hot water is automatically discharged via a float‑type level control valve or an overflow‑adjustment valve, usually into a fixed‑drain flash tank, allowing the thermal energy to be recovered and reused. The continuous blowdown flow rate is automatically adjusted in response to changes in the boiler feedwater load, maintaining a relatively stable blowdown rate. By utilizing the secondary steam and waste hot water as heat sources, part of the heat lost in the boiler’s continuous blowdown can be recovered, thereby improving boiler efficiency.
Structure and Its Function
The expansion vessel consists of a main body, auxiliary components, and other parts. The main body comprises a cylindrical shell, elliptical end caps, a manhole, and internal fittings; the internal fittings include wear‑resistant devices, cooling‑water inlet assemblies, and overflow devices.
| Country of the project |
Customer Name |
Project Name |
|
Specification and Model |
Quantity |
| Continuous blowdown expansion tank & Periodic blowdown expansion tank |
|||||
| Australia |
Ameco Foster Wheeler |
Port Pirie Waste Heat Boiler Project, Australia |
Regular blowdown expansion tank |
DP-5 |
1 |
| Morocco |
Shandong Electric Power Construction No. 3 Engineering Co., Ltd. |
Morocco Noor III 150 MW Concentrated Solar Power Plant Project |
Expansion container |
SK-20/SX-3/SK-22 |
5 |
| Philippines |
Ameco Foster Wheeler |
Philippine SEC 210-1 × 105 MW Coal-fired Power Plant |
Continuous Blowdown Expansion Tank Regular blowdown expansion tank |
LP-1.2 DP-1.5 |
4 |
| Malaysia |
Shanghai Boiler Works Co., Ltd. |
Malaysia Liwen 1 × 260 t/h Biomass–Coal CFB Boiler and Auxiliary Systems Project |
Continuous Blowdown Expansion Tank Regular blowdown expansion tank |
LP-5.5 DP-7.5 |
2 |
| Russia |
China Fifth Ring Engineering Co., Ltd. |
Russia’s Syzran Fertilizer Project |
Expansion container |
LP-1/DP-4.5/SK-3.5 |
3 |
| Singapore |
Jiangsu Haitong Economic and Trade Co., Ltd. |
Singapore Tuas 300 TPD Waste-to-Energy Project |
Expansion container Gas storage tank |
LP-1.5/DP-3.5/SK-1.5 |
9 |
| Maldives |
Jiangsu Haitong Economic and Trade Co., Ltd. (China Tianying Co., Ltd., CNTY) |
Maldives Energy and Waste Management Waste-to-Energy Project |
Expansion container |
LP-1.5/DP-3.5 |
3 |
| Saudi Arabia |
Oriental Lingri Boiler Co., Ltd. |
Saudi Al-Jafra Project |
Continuous Blowdown Expansion Tank Regular blowdown expansion tank |
LP-3 DP-12 |
2 |
| Indonesia |
Shanghai HaiGuo Technology Co., Ltd. |
Indonesia Oman 900 KTPA AMIN Self-Provided Copper Smelting Plant Project |
Regular blowdown expansion tank |
DP-6 DN600 |
4 |
| Gambia |
Tianjin Gela Gas Compression Equipment Co., Ltd. |
Gambia GGC Biomass Power Plant Project |
Regular blowdown expansion tank Hydrophobic expansion vessel |
DP-7.5 V=10m³ SK-0.5 V=10m³ |
5 |
| Thailand |
Chongqing Sanfeng Cavantha Environmental Industry Co., Ltd. |
Thailand Chokchai 9.9MW WTE Project |
Deaerator Expansion container |
DMC-75 DP-3.5/LP-1.5/SK-3 |
4 |
| South Korea |
Sumitomo Heavy Industries Fuhui Energy Management (Shanghai) Co., Ltd. |
Korean TW Project |
Atmospheric Flash Drum Continuous Blowdown Expansion Tank |
DN1500, 4 m³ DN1200, 2 m³ |
2 |
| Malaysia |
Oriental Lingri Boiler Co., Ltd. |
Malaysia Miri Gas-fired Power Plant Project |
Continuous Blowdown Expansion Tank Regular blowdown expansion tank |
LP-3 |
2 |
| Iraq |
Oriental Lingri Boiler Co., Ltd. |
Iraq Zubair Gas Turbine Unit Single-to-Combined Project |
Continuous Blowdown Expansion Tank Regular blowdown expansion tank |
LP-3 DP-10 |
2 |
| Brazil |
Valmet Technology Co., Ltd. |
Brazil |
Regular blowdown expansion tank Continuous Blowdown Expansion Tank |
ID1300x10 L=2000 ID1200x10 L=1500 |
2 |
| Saudi Arabia |
Oriental Lingri Boiler Co., Ltd. |
Saudi Gazlan Combined-Cycle Gas Power Plant Expansion Project |
Regular blowdown expansion tank Continuous Blowdown Expansion Tank |
DP-15 LP-3.0 |
16 |
| Hydrophobic expansion vessel |
|||||
| Oman |
Shandong Electric Power Construction No. 3 Engineering Co., Ltd. |
Oman Salalah Phase II 430 MW Gas-Fired Combined-Cycle Power Plant Project |
Hydrophobic expansion vessel |
SK-47/SK-22/SK-1 |
8 |
| Jordan |
Shandong Electric Power Construction No. 3 Engineering Co., Ltd. |
Jordan Samareh Phase IV 66.4 MW Combined-Cycle Expansion Project |
Hydrophobic expansion vessel |
SK-11.7 |
1 |
| Japan |
Andritz Austria |
Japan Ichihara Project |
Hydrophobic expansion vessel |
SK-0.4 SK-4.8 |
2 |
| United Arab Emirates |
Shandong Electric Power Construction No. 3 Engineering Co., Ltd. |
UAE DUBAL 550 MW Combined-Cycle Power Plant |
Hydrophobic expansion vessel |
SK-20 |
1 |
| Bahrain |
Shandong Electric Power Construction No. 3 Engineering Co., Ltd. |
Bahrain Adu Phase II Independent Water Plant and Power Station Project |
Hydrophobic expansion vessel |
SK-13.5 SK-3.4 |
4 |
| Bangladesh |
China Energy Construction Group Northeast Electric Power First Engineering Company |
Meghnaghat PhaseⅡFuel Gas589.75MW/Fuel Oil 541.22MW Combined Cycle Power Station Project, Bangladesh |
Hydrophobic expansion vessel |
SK-10 |
1 |
| Indonesia |
Sumitomo Heavy Industries Fuhui Energy Management (Shanghai) Co., Ltd. |
Indonesia Mania Smelter Project |
Hydrophobic expansion vessel |
SK-3 SK-5 |
2 |
| Uzbekistan |
China Energy Construction Group Zhejiang Thermal Power Construction Co., Ltd. |
Independent 1,500 MW gas-fired combined-cycle power plant on the Syr Darya River in Uzbekistan |
Hydrophobic expansion vessel |
SK-2.2 |
1 |
| Saudi Arabia |
Shandong Electric Power Construction No. 3 Engineering Co., Ltd. |
Saudi Taiba 1,800 MW Combined-Cycle Power Plant Project |
Expansion container |
SK-36.7/SK-16.2/SX-18 |
21 |
| Singapore |
Shandong Electric Power Construction No. 3 Engineering Co., Ltd. |
Singapore CCP50 600 MW Combined-Cycle Power Plant Project |
Expansion container |
SK-29.4/SX-8.45 SX-0.25/YX-14 |
4 |
Pressure vessel (yālì ró ng qì), English: pressure vessel refers to a closed device that contains gas or liquid and carries a certain pressure. In order to implement scientific management and safety inspection more effectively, pressure vessels are divided into three categories according to working pressure, medium harmfulness and its role in production in China's Pressure Vessel Safety Supervision Regulations. And for each category of pressure vessels in the design, manufacturing process, as well as inspection items, content and methods to make different provisions. Pressure vessels have implemented the safety and quality licensing system for imported goods, and goods that have not obtained the import safety and quality license are not allowed to be imported. According to the latest TSG21-2016 "Safety and Technical Supervision Regulations for Fixed Pressure Vessels", it should be divided into the first group of media and the second group of media according to the media, and then classified into categories I, II and III according to the pressure and volume. The so-called first, second and third categories of the old capacity regulations are no longer applicable. A pressure vessel is a closed container that can withstand pressure. The use of pressure vessels is extremely wide, it has an important position and role in many sectors such as industry, civil, military and many other fields of scientific research. Among them, the pressure vessels used in the chemical industry and petrochemical industry are the most, and the pressure vessels used in the petrochemical industry alone account for about 50% of the total number of pressure vessels. Pressure vessels are mainly used for heat transfer, mass transfer, reaction and other technological processes in the chemical and petrochemical fields, as well as storage and transportation of pressurized gases or liquefied gases; they are also widely used in other industrial and civil fields, such as air compressors. All kinds of special compressors and auxiliary machines of refrigeration compressors (coolers, buffers, oil-water separators, gas storage tanks, evaporators, liquid coolant storage tanks, etc.) are pressure vessels.
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