Heze Boiler Factory Co., Ltd. operates a R&D Center, an installation company, three production bases, and has established close cooperative relationships with numerous key universities and research institutions in China. New product development is ongoing and well-received by a wide customer base. We offer industrial and residential coal-fired, oil-fired, gas-fired, biomass, heat transfer oil, waste heat recovery, refrigeration auxiliary, and first, second, and third class pressure vessels (liquefied gas, liquid ammonia, methyl chloride, propane, underground tanks, tower vessels), as well as low-temperature containers (liquid oxygen, liquid nitrogen, liquid argon tanks), heat exchange units, ground source heat pump units, etc. For many years, the company has actively implemented an innovation strategy centered around technological, market, and management innovation, accelerating the pace of corporate reform and restructuring, and gradually establishing a modern corporate system that adapts to the socialist market economy system.
Liquefied Petroleum Gas (LPG) primarily originates from refinery gas and associated gas from oil fields.
One: Derived from refinery gas
Refinery gas is a byproduct of the oil refining and processing, with its quantity depending on the production method and processing depth of the refinery, generally around 4%-10% of the original weight. Currently, the recovery of liquefied petroleum gas from the catalytic cracking gas of refineries is the main source of domestic LPG.
From associated gas obtained from oil fields
Associated gas from oil fields is a byproduct gas generated during the oil extraction process. It is itself a combustible gas existing in the geological structure of the oil reservoir, containing 10%-40% of propane, butane, pentane, and high-carbon alkanes. During oil extraction, both oil and associated gas are discharged simultaneously. They are separated using gas-oil separation equipment installed above the oil well. The associated gas contains approximately 5% of propane and butane components, which can be extracted using absorption methods. This results in high-purity liquefied petroleum gas with very low sulfur content. The liquefied petroleum gas supplied by countries in Europe, the United States, Japan, and other regions often falls into this category.
III. Extracted from Natural Gas
Pure natural gas extracted from underground is divided into dry gas and wet gas. Wet gas contains less than 90% methane, with more than 10% of ethane, propane, butane, and other alkanes. After being compressed and fractionated, the gas is absorbed using diesel spray, then condensed into a liquid state at a pressure of 1.6 MPa in a fractionation tower, forming liquefied petroleum gas.
Safety Procedure for Inverting Drums
1. Prior to production or maintenance procedures, first check the pressure, liquid level, and temperature of the filling and emptying tanks. Record these details upon confirmation and only then proceed with decanting.
2. Determine the discharge volume from the liquid storage tank and the intake volume to the receiving tank, and calculate if the receiving tank's capacity meets the process and safety requirements, then confirm the tank transfer process.
3. The operational procedure is: open the liquid phase valves for in and out of the tank - adjust the vapor phase valve - start the circulating compressor.
4. During decanting, pay attention to checking the storage tank's pressure and liquid level changes, and always revalidate calculations. The incoming liquid tank must not exceed the maximum allowable liquid level.
5. After emptying the drum, shut off the compressor, close the liquid phase valve, and re-adjust the compressor valve.
6. Carefully fill out the operational records.
Materials used for liquefied gas storage tanks:Q345RThis is a special steel plate for pressure vessels; this equipment has been heat-treated with high-temperature annealing.,Heze Boiler Factory Co., Ltd. is one of the highly competitive and outstanding private enterprises in China's pressure vessel manufacturing industry, particularly renowned for its independent low-temperature storage tanks.|Low-temperature thermal insulation storage tank(LiquidCO2,Liquid Nitrogen,Liquid Oxygen, Liquid Argon)Frame-type Low-Temperature Insulation Storage Tank|Tanks, frame-type container tanks,And other chemical pressure vessels(Liquid Ammonia Tanks, Liquid Chlorine, Ethylene Oxide Storage Tanks,Ethylene, Propane Storage Tank,Propylene)Aspects, After years of accumulation, we have developed a series of products, user solutions, and equipment installation and debugging technologies, offering comprehensive solutions including consultation, design, production, integration, and installation debugging services.
Liquefied petroleum gas storage tanks are pressure vessels used for storing liquefied petroleum gas. They are special equipment that can only be produced by enterprises approved by the National Quality Supervision and Inspection总局. They require a Class 3 pressure vessel design and manufacturing qualification issued by the state. Shandong Heze Boiler Factory Co., Ltd. is a state-approved manufacturer of Class 1-3 pressure vessels, capable of producing pressure vessels such as storage tanks below 200 cubic meters. They are among a select few capable of producing...200Cubic Corporation.
Our LPG storage tanks' advantages:
One, our company conducts an annual quality assessment for all suppliers to ensure supplier quality.
Two, all major pressure materials are made from customized steel plates from Jining Steel and Anyang Steel, with all thickness deviations exceeding national standards.***Standard Specifications50m3For example, in the case of liquefied gas storage tanks, to ensure the service life of the tank, the nominal thickness of the standard hemispherical head is:14mm, but our company uses customized steel plates for the caps***Thin thickness14.7mmSteel plates. (Other companies have limited production capacity and cannot customize steel plates, so they either purchase directly)14mmSteel plate, may result in premature scrapping during future inspections due to insufficient thickness of the head end curvature; or opt for16mmSheet metal fabrication, resulting in waste of resources and extra costs for the customer.
Section 3: Prior to the production process in the manufacturing workshop, the customized steel plates for procurement need to be...100%Ultrasonic re-inspection to further ensure steel plate quality, guaranteeing the production of superior products.
Four: The products are manufactured on an assembly line with standardized operations. This has increased efficiency, ensured the smooth operation of the quality system, and guaranteed the quality of the products.
Five. The main product body welding is done using both internal and external automatic welding, ensuring both welding shape and internal quality.
All pressure parts are焊接 with full penetration structures to ensure welding strength.
All LPG storage tanks undergo full stress-relieving heat treatment. The company has built two gas-fired full heat treatment furnaces, with a single furnace capable of handling...300Rectangular storage tankDN≤4000mm，LTotal ≤25000mmThe product's lifespan and safety quality play a significant role. It is also a major highlight of our company's sales to external customers.
Inspection (at various inspection points)
Eight, during the product manufacturing process, from raw materials to factory to product inspection and shipment, set up various inspection checkpoints to effectively control product quality.
All main weld seams100% XRadiation Detection, Fittings, FlangesC、DWelding-like100%Surface flaw detection ensures welding quality. The company has a non-destructive testing room and is staffed with certified inspectors at all levels.
Ten, individual hydrostatic testing to ensure equipment strength safety; individual air tightness testing to guarantee equipment sealing performance. After hydrostatic testing, internal air blowing and cleaning.
Eleven, the company has2A cabinet type shot blasting room, all tanks are treated with pneumatic steel shot blasting for rust removal, ensuring both the appearance quality and paint quality. (After overall shot blasting and rust removal, the lifespan of the paint can be significantly extended.) Apply two coats of anti-rust primer, followed by two coats of topcoat; four layers of paint guarantee the tank will not peel for five to ten years, and with good maintenance, it can last up to twenty years without repainting.
Twelve: Large production capacity, customers can see the real products at the company. Regular products are available for immediate delivery, allowing customers to shorten their construction cycle and earn money sooner.
Thirteen: Witness Project4000Customers遍布全球， spanning every corner of the world, ensuring your peace of mind in purchasing.
