Welded Spiral Plate Heat Exchanger

Item No.: 006

INQUIRY PDF Format

Description

Spiral Heat Exchangers are the ideal solution for "Heavy Duty" Heat Exchanger, in extremely dirty and fouling process duties. The self-cleaning features inherent in the design, give unparalleled uptime between service intervals and quick and easy service turn-around.

Design Structure for Spiral Heat Exchanger

The spiral plate heat exchanger is made by rolling two long metal plates around a center core to form two concentric spiral flow passages, one for each fluid. The plate edges are welded shut so that each fluid stays within its own passage and there is no flow bypassing or intermixing. Channel plate width and spacing (gap between plates) are optimized for the specified duty, maximum heat transfer, and ease of access. The plate gap is maintained by welded spacer studs although some designs do not require them.
Due to its inherent circular design and large surface area to volume ratio, the spiral heat exchanger offers unique advantages over other types of heat exchangers like the shell and tube.

Features and Advantages for Spiral Heat Exchanger

High Thermal Efficiency
Single and long curving flow passages with a uniform rectangular cross-section ensure superior flow distribution, intense turbulence, and high heat transfer coefficients (50-100% greater than shell & tubes).
Self-Cleaning Passages
The spiral's single-flow passages induce high shear rates that scrub away deposits as they form. This self-cleaning effect reduces fouling and makes spiral heat exchangers ideal for handling tough fluids such as process slurries, sludge, and media with suspended solids or fibers.
Countercurrent or Co-current
Spiral heat exchangers normally operate in true countercurrent flow for close approaches and temperature crosses. Occasionally a co-current flow design has major benefits, especially in cooling or heating fluids prone to gelation, burn-on, freezing or similar skin temperature related fouling.
Small Footprint & Easy Access
The spiral heat exchanger is compact and requires minimal space for installation and servicing. Removable covers provide easy access to interior heat transfer surfaces for field inspections, routine maintenance, or manual cleaning if required.

Supply Range for Sprial Heat Exchanger

	Min~Max
Heat Transfer Area (m2)	5~600
Design Temperature (℃)	-50~400
Design Pressure (Bar)	Full Vacuum~20
Application Code	ASME, KS, JIS, BS, PED
Spiral Plate Material	SS304, SS316L, 254SMO Nickel Alloy, C-276 , Titanium

Typical Spiral Configurations

Spiral Flow Both Sides

* Liquid to liquid cooling, heating or heat recovery
* Steam heating or vapor condensing
* Suitable condenser at pressures above atmospheric
* Countercurrent or co-current flow
* Best for crossing or close approach temperatures
* Self-cleaning effect in both spiral passages
* Ideal for handling suspensions, slurries & sludge
* Removable covers for independent & easy access

One Side in Cross Flow, One Side in Spiral Flow

* Ideal for condensing under deep vacuum
* Vapor in annular cross flow
* Cooling medium in spiral flow
* Extremely low vapor side pressure drop
* Large flow cross-section for large vapor volumes
* Short height of condensing section
* Suitable in liquid to liquid duty with large flow imbalance

Combined Cross - Spiral Flow

* Vapor to liquid condensing
* Optimal for mixed vapors with inert gases
* Built-in internal subcooling section
* Suitable for low to moderate operating pressures
* Combines features of Types 1 & 2
* Excellent steam heater of viscous fluids & slurries in horizontal direction

Key Application Industries
PVC slurries
Particle laden/fiberous media in Ethanol, Textiles, Pulp and Paper etc.
Erosive slurries Metal extraction and Processing
Hydrocarbon Processing
Viscous fluids such as Heavy Oils and Oil Extraction
Distillation, Condensation and Reboilers
Vegetable Oil Deodorizing
Non-Newtonian fluids
Sewage Sludge and Waste Water

Spiral Plate Heat Exchanger Applications
An Overview Spiral Plate Heat Exchangers (SPHEs) are a type of heat exchanger that is designed to transfer heat between two or more fluids which are separated by a solid wall. These exchangers consist of a series of plates that are arranged in a spiral pattern, which allows for efficient heat transfer even with high viscosity fluids. Due to their unique design, spiral plate heat exchangers are incredibly versatile and can be used in a variety of applications.

The primary application of spiral plate heat exchangers is in the chemical and petrochemical industries. Here, they are used in a wide range of processes, including heating and cooling, condensation, and evaporation. For example, in the chemical industry, SPHEs are extensively used in distillation columns, where they are used to preheat and cool the feed and product streams. Similarly, in the petrochemical industry, SPHEs are used in refineries to heat or cool the crude oil and separate the various components using distillation.

Another common application of spiral plate heat exchangers is in the food and beverage industry. Here, they are used for a variety of tasks, including pasteurization, sterilization and evaporation. For example, in the dairy industry, SPHEs are used to pasteurize milk and other dairy products, while in the fruit juice industry, SPHEs are used for juice concentration and evaporation. They are also used for heat recovery in these industries, which help in reducing the overall energy consumption and cost.

Spiral plate heat exchangers are also used in the HVAC (Heating, Ventilation, and Air-Conditioning) industry. Typically, these exchangers are used in large commercial and industrial buildings that require efficient heating and cooling systems. In such systems, the SPHEs are used to transfer heat between the building's HVAC system and the outside air or water systems. They are also used in geothermal heating and cooling systems, which use the earth's natural temperature to transfer heat and cool the building.

The pharmaceutical and biotech industries are another area where spiral plate heat exchangers are widely used. Here, they are used for sterilization, purification, and fermentation. In these industries, it is essential to maintain a sterile environment, and spiral plate heat exchangers can help achieve this by providing a high level of heat transfer efficiency without contaminating the process.

In the paper and pulp industry, SPHEs are used for heating and cooling of various process streams.

They are also used in the recovery of heat from the black liquor, which is the spent pulping solution, and also in the chemical recovery process.

Spiral plate heat exchangers also find their applications in the marine and offshore industry. They are used for cooling of the engine, lubrication and hydraulic fluid and also for heat recovery from the exhaust gases.

In conclusion, spiral plate heat exchangers are widely used in a variety of industries due to their high efficiency, compact size, and versatile design. They can handle a wide range of fluids, making them ideal for use in diverse applications. The chemical and petrochemical industries, food and beverage industry, HVAC industry, pharmaceutical and biotech industries, paper and pulp industry, and marine and offshore industry are some of the industries which widely use spiral plate heat exchangers. The applications of these heat exchangers are vast, and they continue to be an essential component in various processes across many industries.

Spiral Heat Exchangers & Renewable Energy
Spiral heat exchangers are also used in green anaerobic digestion processes that produce biogas from organic wastes such as livestock manure, food by-products, fats, oils, and grease.
Biogas, a mixture of methane and CO2, is a renewable energy that can be combusted to generate heat and electricity. After dewatering, the remaining pathogen-free biosolids can be used for soil conditioning as fertilizer.

Service and Replacement Manufacturing
Customized design and manufacturing is available from us. The old equipment could be replaced by brand new by which is 100% identical and same in Size and Thermal Performance.
End user even need not to do extra pipeline and foundation Job.

Reference Case for Spiral Plate Heat Exchanger

* Ever Largest Four-Channel Spiral Plate Heat Exchanger

*SP-Wave made its tiney contribution to fight against Climate Chnage

Video Demo for Spiral Plate's Manual Welding

Video Instruction for SP-Wave Spiral Plate Heat Exchanger

Reference Case for SP-Wave Spiral Plate Heat Exchanger