Company background: Donghua Energy Co., Ltd. (referred to as Donghua Energy for short) is a large-scale liquefied petroleum gas frozen storage and transportation wholesale base jointly funded by five shareholders, with a registered capital of 222 million yuan. The main business of the company is: 1. Development and utilization of associated resources in oil fields, that is, processing propane and butane separated from associated gas in oil fields into high-purity liquefied petroleum gas for high-quality industrial gas; Processed into liquefied gas for vehicles and used as automobile fuel; Propane or butane is directly used as a chemical raw material. 2/200,000 cubic meters of liquid chemicals storage tanks are used to store all kinds of chemicals with business licenses.
Donghua (Petroleum) Changjiang Co., Ltd. holds 49% of the shares. Unocal Changjiang Limited holds 22% of the shares. Jiangsu Xinqiao Industrial Investment Co., Ltd. holds 20% shares. Zhenjiang Xiekai Electromechanical Co., Ltd. holds 4.5% of the shares. Nanjing Huizhongjie Energy Trading Co., Ltd. holds 4.5%. The company has a low-temperature liquefied petroleum gas transfer base, covering an area of 6.5438+0.6 million square meters, with an annual transfer of 500,000 tons of liquefied petroleum gas. The 54,000-ton liquefied petroleum gas terminal has a total unloading capacity of 1 1,000 cubic meters of propane and 1 1,000 cubic meters of butane per hour, and a loading capacity of 300 cubic meters per hour. 3 1 1,000 m3 low temperature and atmospheric pressure liquefied gas storage tank, 1 1,000 m3 pressure spherical tank, repackaging propane and butane, which can meet customers' requirements for any proportion and fully guarantee the quality of liquefied gas. There are 8 parking spaces for tank trucks, and the loading capacity can reach 1500 tons/day. Donghua Chemical Storage Base has two docks, 46 vertical liquid chemical storage tanks with a total volume of186,600 cubic meters, and 8 pressure spherical tanks with a total area of 350 mu.
The LPG transfer station of Zhangjiagang Donghua Energy Co., Ltd. is located in the south bank of Golden Waterway, Zhangjiagang City, Jiangsu Province, about 134 km from the middle and upper reaches of Wusong River. It is not frozen or silted, and its geographical position is extremely superior. The large-scale liquefied petroleum gas frozen ship can directly reach the ZOUEC liquefied petroleum gas transfer terminal all the year round, and the berth depth of the terminal in flood season is-15m. The ZOUEC Wharf can berth large liquefied petroleum gas carriers with a deadweight of over 35,000 tons. ZOUEC Liquefied Petroleum Gas Terminal is a butterfly terminal with a total length of 29 1.5m, including an 80m-long operating platform. The platform is equipped with four sets of imported 8-inch hydraulic unloading arms. The specification of the butt flange is ANSI B 16.5 150LB, and the total unloading capacity is 1000 m3 propane per hour, 1000.
There are 46 vertical vault tanks for chemical products, with a total capacity of186.6 million cubic meters.
Two styrene coolers with heat exchange area of 64 cubic meters (water cooling circulation technology)
Frozen water storage tank with capacity of 20 cubic meters
14 loading platform 1 (loading speed is 90 m3/h, loading speed is 150 m3/h)
Combustible gas detection, fire alarm system, public address intercom system, industrial television system and related hydropower facilities.
Tank setting
The storage tanks are divided into freezing tanks 365,438+0,000 cubic meters, heating tanks 365,438+0,000 cubic meters, inner coating tanks 64,600 cubic meters, methanol tanks 40,000 cubic meters and other types of storage tanks 20,000 cubic meters.
Both inclined bottom tank and storage tank are equipped with heat preservation facilities to reduce the volatilization loss of tank cleaning;
The diameter of inlet and outlet pipelines of methanol tank group is DN250, the rest is DN200, the loading flow rate is 90 m3/h, and the pump outlet diameter is DN 150. Each tank group is equipped with a loading pump with the flow rate of 120 ~ 200 m3/h to ensure the receiving and conveying speed.
Purge the pipeline with pig balls and nitrogen to ensure quality and reduce loss and pollution;
The storage tank is equipped with radar, which is also a system and can be queried remotely. It is also equipped with facilities such as ultra-high liquid level interlock cut-off, warehouse overflow cut-off, and grounding alarm interlock cut-off; Equipped with PLC control system and delivery management system, the batch controller is used to quantitatively deliver goods, effectively preventing man-made accidents.
The tank farm is equipped with perfect fire fighting, sewage treatment and waste adsorption treatment systems.