What is Chiller?

Replacing exciting standard chiller to Inverter chiller, Changing from using city water, Changing from Cooling Tower.
It will contribute to Stable water temprature and water quality.

A chiller is a device that either cools a heat source or controls temperature through the flow of constant-temperature controlled water.
Chillers are used in many industrial applications such as industrial machinery, medical devices, scientific equipment, and food-related equipment, etc.

In addition to the main chiller unit, ORION chillers include other components such as a water tank, water-supply equipment, and control system, all in a single unitized package, in order to best suit any of our users' application requirements.
(Unit Coolers without built-in water tanks are also available.)

Our all-in-one chillers offer reduced installation costs and are also space saving.

We can use a refrigerator to cool water. But a refrigerator won't provide you with a constant supply of cold water. For a constant supply of cold water, you need a chiller.
Water in a chiller is circulated through an evaporator in order to provide a sustained supply of cold water. Chillers are used to cool hot areas on devices such as laser processing equipment or high-frequency heaters, and are also suitable for cooling to a fixed temperature when needed. For these reasons, chillers are widely used.

The basic chiller is only a refrigeration unit whose main role is cooling. In addition to this main unit, other components such as water tanks and pumps, etc must be chosen and installed, and the system that controls these components must also be designed and manufactured.

In addition to layout design, and on-site piping and wiring must also be carried out. However, ORION's chillers with built-in water tanks have the cooling components, water tank, and pump in a single unit, so all that is needed to start operating is piping to and from the user's equipment and some electrical hookups.

The red outline in the illustration below shows a basic chlorination chillers with built-in water tanks are an all-in-one solution.

Solving Problems by Introducing a Chiller (Welding Machine Application Example)

Proper chiller setup can resolve many problems and lower running costs. As an example, we will look at problems associated with a welding machine and how the introduction of a chiller can resolve these problems.

Problem1： Insufficient cooling capacity of Radiator type cooler

When using a radiator to cool surrounding air without any type of refrigeration, weld quality and electrode tip lifespan can both be reduced due to insufficient cooling during extreme temperature rises in the hot weather of Thailand. Using a chiller, stable temperatures can be achieved through the year, and of course, tip-dressing frequency can be reduced and tip lifespan can be improved.

Problem2： Insufficient cooling capacity of Cooling Tower

When a cooling using a cooling tower, worsening water quality can cause the inside of electrodes to become dirty, resulting in a drop in welder performance. On the other hand, chiller-based cooling is a closed circuit, which reduces water-quality degradation. Also, since operation can be synchronized with the target equipment, troublesome valve operation before and after each use is unnecessary.

Problem3： Wasted Tap-Water

Cooling by using a constant stream of tap water will incur extremely high running costs. Setting up a chiller can reduce running costs.

For example, under the following conditions -- cost of tap water: ¥500/m3; cost of electricity: ¥15/kW; chiller water replaced twice per month; running time: 5 h/day, 300 days/year; flow rate: 3.0 L/min -- the cost reduction over using tap water would be 80%.

ORION Chiller and Unit Cooler Configurations

Without Built-In Water Tank (Open Loop)
Case where an on-site water tank and cooling water are available to cool equipment.

With Built-In Water Tank (Closed Loop)
Case where cooling water is supplied directly to equipment.

Without Built-In Water Tank (Open Loop)
Case where an on-site water tank and cooling water are available to cool equipment.

With Built-In Water Tank (Closed Loop)
Case where cooling water is supplied directly to equipment.

Chillers are Used in Many Applications Like These

MRI Cooling

MRI scanners that have built-in helium compressors use chillers to cool the helium gas. The MRI scanner cannot be switched off even when not being used for an examination, so the chiller must operate continuously. For this reason, the effective energy savings offered by an inverter chiller is very beneficial.

Die Temperature Control for Molding Machines

In addition to P.E.T. bottle caps, tableware products such as plastic bowls and plates are produced by processes such as flowing resin into a mold, heating and compressing, and curing, which are carried out by molding machines and related equipment. By cooling the molds with cold water supplied from a chiller, plastic can be cured in a short time and takt times can be improved.

Reflow Oven (Reflow Soldering Equipment)

PC boards that undergo soldering processes see a lot of heat stress, so a big issue is how to reduce the resulting thermals stress on surface mount devices. An air-cooled heat exchanger (condenser) is set up inside the tank, and cold water is circulated through the heat exchanger. The temperature inside of the tank is kept constant via contact with a stream of fan-blown cooling air. The cooling part may installed at the very end of the oven and/or at the reflow area.

Fiber Laser

Cooling for diode laser oscillators and optical systems.

Mold Cooling

Speed up curing time of plastic castings by a flow of cooling water in metal molds. When the mold is kept hot by the machine, the temperature of the mold is controlled by supplying chilled water, which is maintained at a certain temperature.