High-efficiency spiral wound heat exchanger
The high-efficiency spiral wound heat exchanger is a compact heat exchange device based on a spiral wound structure design, and belongs to the core category of high-efficiency indirect heat exchangers.It uses thin metal plates as heat transfer elements, forming concentric annular flow channels by spirally winding the heat transfer plates and spaced strips.It enables two fluids involved in heat exchange to complete heat transfer within their respective independent spiral channels. It is widely used in industrial fluid heating, cooling, condensation, evaporation and other process steps, and is a key device for modern industrial thermal energy utilization and energy-saving transformation.
Core Features of the Product
Extremely high heat transfer efficiency This heat exchanger employs a pure counter-current heat exchange mode, where the two fluids flow in opposite directions within the spiral channel, maximizing the temperature difference between the hot and cold fluids.The heat transfer coefficient is improved by 30%-50% compared to traditional shell-and-tube heat exchangers. Simultaneously, the spiral flow channel design creates strong turbulence during fluid flow, effectively reducing the thickness of the heat transfer boundary layer and avoiding the decrease in heat transfer efficiency caused by laminar flow. It avoids the decrease in heat transfer efficiency caused by laminar flow and maintains excellent heat transfer performance even under low flow rate conditions.
Compact structure and high space utilization The spiral winding design greatly expands the heat transfer area within a limited equipment volume, achieving a heat transfer area of 200-600 m²/m³ per unit volume, which is 3-5 times that of shell-and-tube heat exchangers.Taking equipment that handles the same heat load as an example, its footprint is only 1/4 to 1/2 that of traditional heat exchangers, making it particularly suitable for space-constrained industrial scenarios, such as offshore platforms and integrated chemical equipment.
Strong resistance to fouling The turbulent flow of fluid within the spiral channel generates a certain self-cleaning effect, making it less likely for solid particles in the fluid to deposit on the surface of the heat transfer plate.Meanwhile, the flow channel gap can be adjusted by setting the height of the spacer bars. For fluids containing a small amount of impurities or high viscosity, a wide flow channel structure can be designed to further reduce the risk of clogging and reduce the frequency of equipment cleaning and maintenance.
Excellent pressure resistance and temperature resistance The main body of the equipment is made of corrosion-resistant metal materials such as stainless steel, titanium alloy, and Hastelloy, and combined with welding sealing and metal gasket sealing technology, it can adapt to working conditions with a maximum pressure of 40MPa and a maximum temperature of 600℃.In addition, the flexible design of the spiral structure can effectively absorb the stress generated by thermal expansion, reducing the risk of equipment damage caused by thermal stress.
High operational flexibility It can be designed as a single-flow or multi-flow structure according to process requirements to achieve simultaneous heat exchange of multiple fluids; and the heat exchange area of the equipment can be flexibly customized by adjusting the number of spiral winding turns.The sizes range from a few square meters to several thousand square meters, meeting different heat exchange needs from small-scale pilot tests to large-scale industrial production.
Main Functions of the Product
Heat transfer and recovery
As its core function, the high-efficiency spiral wound heat exchanger can achieve efficient heat transfer between hot and cold fluids and recover process waste heat in industrial production (such as by-product steam in chemical reactions and waste heat from metallurgical flue gas).Using it to preheat raw materials or generate steam reduces energy consumption for enterprises and aligns with energy conservation and emission reduction industrial policies.
Fluid temperature control
It can precisely control the temperature of process fluids, such as heating crude oil in petroleum refining and cooling reaction solutions in pharmaceutical processes.Ensure that the production process operates stably within the set temperature range to improve product quality and production efficiency.
Phase transition
Suitable for fluid condensation and evaporation processes, such as in natural gas processing, condensing high-temperature natural gas into liquefied natural gas (LNG).In refrigeration systems, refrigerant evaporates to absorb heat and achieve a cooling effect. It is a core piece of equipment in phase conversion processes in chemical, refrigeration, and energy fields.
Fluid mixing and partitioned heat transfer
Through an independent spiral flow channel design, heat exchange can be achieved while completely separating the two fluids, avoiding cross-contamination between different media.Suitable for industries with high fluid purity requirements, such as food, pharmaceuticals, and electronics; some specially designed equipment can also achieve gentle mixing and heat exchange of fluids through flow channel optimization.
Product Application Scope
petrochemical industry
It is a core piece of equipment in petroleum refining, coal chemical industry and fine chemical industry, used for heat exchange and condensation in processes such as crude oil distillation, hydrogenation reaction, olefin separation and acid-base neutralization;In natural gas processing, it is widely used in processes such as natural gas dehydration, dehydrocarbonization, and liquefaction (LNG) to handle high-pressure, high-sulfur natural gas media.
Energy and power industry
In thermal power plants, it is used for waste heat recovery from boiler flue gas and cooling of steam turbine lubricating oil.In the field of new energy, it is applied to heat exchange in reduction furnaces for photovoltaic silicon material production, temperature control of lithium battery electrolytes, and heat exchange processes in biomass energy and hydrogen energy production.
Food and pharmaceutical industries
Due to its hygienic materials and structural design, it can be used for pasteurization of food and beverages, concentration of juice, and heating and cooling of dairy products.In the pharmaceutical industry, it is applicable to temperature control in drug synthesis reactions, concentration and purification of drug solutions, and meeting the hygiene requirements of GMP certification.
Metallurgical and papermaking industries
In metallurgical processes, it is used for heat exchange in cooling water of smelting furnaces and for cooling and crystallizing molten metal; in the paper industry, it is used for heating and cooling pulp and recovering waste heat from papermaking wastewater, thus achieving resource recycling.
Marine engineering and shipbuilding industry
With its compact structure and good vibration resistance,Applications include oil and gas processing on offshore drilling platforms, cooling water heat exchange for marine engines, and heat recovery in seawater desalination processes.Adaptable to high salt spray and high vibration conditions in marine environments.
Refrigeration and air conditioning industry
As a core heat exchange component in chillers and heat pump units, it realizes the evaporation and condensation of refrigerant, improving cooling/heating efficiency, and is widely used in central air conditioning systems of large commercial buildings, industrial refrigeration systems, and other scenarios..
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