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Since 1925, we manufacture spiral heat exchangers in Japan. As Japanese craftsmanship company.

KUROSE Spiral Heat Exchanger has unique shape.

Spiral Heat Exchanger has two concentric spiral channels, one for each fluid.

The spiral channels provide optimum heat transfer and flow conditions for a wide variety of fluids, while keeping the overall size to a minimum.

In our three main types can be more customized to match for the demands associated with a lot of liquid, vapor and so on.

Advantages

・Strong on customized solutions
・Low maintenance cost due to easy access
・High heat transfer efficiency, higher than in shell & tubes
・Design experience from more than 50 years of manufacturing

Type 1

Vertical
Horizontal

Type 1 is always a liquid / liquid solution.

This type can be opened at each end. And open channel is sealed by the gasket face of the end cover.

Both channels follows the spiral direction, from outside to the center, or the center to outside.

And this model is a good , when fluids are fouling , due to self-cleaning effect.

Type 2

Cross-flow condensing
As option, Column solutions

Type 2 is always a Gas / liquid solution.

The fluid flows across the spiral rather than spiral follow.

This follow can be achieved very low pressure drop on the condensing circuit.

And this model is a good , when to be installed with a very small footprint, compared to the shell and tube model.

Type 3

Vertical
Horizontal

Type 3 has a mixture of type1 and type 2 features.

The fluid flow is two in one. It meaning that cross flow and counter-current flow in the same unit.

This model allows cross temperature approaches than type 2.

Handle crossing-temperature condition in a single spiral

The fully countercurrent system(KSH-1) is able to exchange heat even if temperature difference is extremely close.

SH

Long time operation is possible

Spiral is very good at using with fluids that tend to cause fouling. Single channel geometry reduce the fouling, and it called “self-cleaning”

Self-cleaning means that when fouling occur in spiral channel, taking it away from. Because the entire flow have to pass through fouling section.

It means that velocity of fouling-section increase. So scrubbing effect will happen.

High Overall Heat Transfer Coefficient

Spiral flow passage easily creates turbulent flow.

Optimum flow speed can be gained by selecting the most suitable spiral channel.

High Overall Heat Transfer Coefficient can be achieved.

Less maintenance

Generally, when install the spiral type, to cut down maintenance cost.

Compare that with any other heat exchanger

SH * This example is only for reference. It is not the actual data.
Generally speaking, spiral heat exchanger is stronger than the shell- and-tube type, in the dirt process.

Space Saving

SHE equipment volume is far compact comparing to Tubeler Heat Exchanger.

Plant space can be saved and plant initial cost can be saved.

SH

Ready made model available

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