Product Series

Model: DW-VW series

Type: Air-cooled

Cooling capacity range: 2.5KW～135KW

Temperature control accuracy: ±0.1℃-±1℃

Temperature range: 5℃～35℃

Water pump pressure: 2Kg～8kg (customized according to demand)

Customizable: Yes

Delivery time: 5 to 15 working days

Introduction of variable frequency chiller

With the development of modern industry and scientific research, energy conservation and emission reduction are needed. Frequency conversion technology is now more and more widely used in various mechanical equipment. As a reformer in the refrigeration industry, Dawosi launched the variable frequency chiller to meet the current trend of technological development and make our contribution to the energy conservation and emission reduction of the society.

Features of variable frequency chiller

1. Frequency conversion energy saving

The energy saving of frequency converter is mainly reflected in the application of compressors , fans and water pumps. In order to ensure the reliability of production, various production machinery are designed with a certain margin when equipped with power drive. When the motor cannot run at full load, in addition to meeting the power drive requirements, the excess torque increases the consumption of active power, resulting in a waste of electric energy. The traditional speed regulation method for equipment such as fans and pumps is to adjust the air supply and water supply by adjusting the baffle and valve opening at the inlet or outlet. The input power is large, and a large amount of energy is consumed in the interception process of the baffle and valve. When using frequency conversion speed regulation, if the flow requirement is reduced, the requirement can be met by reducing the speed of the pump or fan.

2. Power factor compensation and energy saving

Reactive power not only increases line loss and heating of equipment, but more importantly, the reduction of power factor leads to a reduction in active power of the power grid. A large amount of reactive energy is consumed in the line, and the equipment is inefficient and wasteful. After using the frequency conversion speed regulation device, due to the effect of the internal filter capacitor of the inverter, the reactive loss is reduced and the active power of the power grid is increased.

3. Soft start energy saving

The hard start of the motor will cause serious impact on the power grid, and will also require too high a capacity of the power grid. The large current generated during startup and the vibration will cause great damage to the baffle and valve, which is extremely detrimental to the service life of the equipment and pipelines. After using the variable frequency energy-saving device, the soft start function of the inverter will make the starting current start from zero, and the maximum value will not exceed the rated current, which will reduce the impact on the power grid and the requirements for power supply capacity, and extend the service life of the equipment and valves. Save equipment maintenance costs.

Application areas

Dawoxi air-cooled chillers are all-in-one units and are widely used in: new energy vehicle three-electric test, chip packaging, data center liquid cooling, IGBT liquid cooling test, new material synthesis, personnel research, biopharmaceuticals, scientific research and experimental precision instruments, medical equipment, aerospace and military industry  , etc. They can accurately control the heat generated by modern industry, improve production efficiency, and ensure production quality. There are many varieties and complete specifications.

Product features

1. The temperature control system adopts a new generation of LCD temperature controller, with a simple and elegant interface, intuitive and easy operation, and various operating indication conditions are clear at a glance. The wide temperature range is 5℃～35℃ and can be adjusted arbitrarily.

2. The core component compressor adopts internationally renowned brands such as Denmark DANFOSS, Japan Sanyo, Daikin, and the United States Copeland, which is a reliable guarantee for the operation of the unit.

3. The core refrigeration accessories are made from international brand components such as Danfoss from Denmark, Emersonguo from the United States and domestic top suppliers.

4. The pipe connection system can be configured according to customer requirements, using materials such as galvanized pipes, plastic pipes, and stainless steel.

5. Fluid equipment adopts well-known domestic brands, such as: Hangzhou Nanfang, Denmark Grundfos, Germany Wilo, Hangzhou Xinjie or imported brand water pumps or special customization according to process requirements.

6. The electrical appliances adopt internationally renowned electrical components such as LS Schneider Siemens Omron, etc., and no special machine room is required.

7. It has its own cooling system, cooling water pump, freezing water pump and water tank, which is easy to move and can be used immediately after it is turned on. It is suitable for areas with scarce water resources and mobile occasions.

8. The fully automatic intelligent control system controls water temperature, ultra-high temperature alarm, water flow, fault signal alarm output, and can be customized for remote control

9. It can meet the demand for process cooling source in 24-hour continuous and uninterrupted production in industrial production.

Note: The company provides on-site selection in the early stage to assist customers in choosing the appropriate machine model and process planning.

Technical parameters of variable frequency chiller

Note: 

1. The cooling capacity is based on: chilled water inlet and outlet temperatures of 12°C/7°C, cooling water inlet and outlet temperatures of 30°C/35°C, and condensing temperature of 40°C (the above cooling capacities are all nominal cooling capacities) 

2. Working range: Chilled water temperature range: 5℃～35℃; Chilled water inlet and outlet temperature difference: 3℃ to 8℃ Control accuracy ±1℃～±2℃

3. Use in an environment with an ambient temperature not higher than 35°C and ensure good ventilation

4. The above parameters are standard model parameters, please call us if you have any questions! We reserve the right to change the above parameters or dimensions without prior notice.