Closed-loop water heat exchanger

Heat transfer area: 20 m² to 3,000 m²

Tube-side medium: fresh water, seawater

Product Structure: Shell-and-tube design, with tube and shell sides connected by flanges and bolts; features a simple structure, long service life, and easy maintenance.

Heat exchanger tube materials: stainless steel tubes, copper tubes, titanium tubes, etc.

Pipe‑line corrosion protection: carbon steel with paint coating, carbon steel with rubber lining, stainless steel clad plates, titanium–steel clad plates, and others.

Oil heater/oil cooler

An oil heater is a new type of specialized industrial furnace that is safe, highly efficient, and energy‑saving, operating at low pressure (at atmospheric pressure or slightly above) while delivering high‑temperature thermal energy. It uses coal, heavy oil, light oil, combustible gases, or other flammable fuels as its energy source, with heat transfer oil serving as the heat carrier. A circulating oil pump forcibly drives liquid‑phase circulation, transferring thermal energy to the process equipment before returning the heated oil to the temperature‑control unit for reheating.

Shell-and-tube oil coolers are widely used in power systems as oil‑cooling equipment. They facilitate heat exchange between two liquid media with a temperature difference, thereby reducing oil temperature. In particular, when used for cooling turbine oil, they help ensure the reliable operation of steam turbines and other related equipment.
Oil heaters and oil coolers are widely used in industries such as the petrochemical industry, the油脂 industry, plastic machinery, hydraulic equipment, air compressors, dilute-oil lubrication systems, fluid couplings, and power‑generation equipment.

This series of oil heaters and oil coolers can be custom-designed and manufactured to meet customer requirements, ranging from small to medium and large sizes, with broad application coverage.

Product types: horizontal, vertical, and combined.

Product configurations: U-tube type, coil type, straight-tube type

Heat exchanger tube materials: carbon steel, stainless steel, copper, etc.

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.