• Water-cooled Low Temperature Freezer
Water-cooled Low Temperature Freezer
A low-temperature freezer is a refrigeration system consisting of three major components: a refrigeration system, a water system, and an electrical system. The core is the refrigeration system, which is composed of a compressor, an evaporator, a condenser, and an expansion valve. The air-cooled box-type chiller is a fin-type chiller that dissipates heat from the environment through one or more external rotor fans. The core advantages of air-cooled chillers: they come with a refrigeration system, a water pump, a water tank, and a control system. Customers can install them on site. They can be used in areas where water is scarce and cooling water is inconvenient...
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Refrigerator product series

Model: DW-SW series

Type: Water-cooled heat dissipation (requires external cooling water source, generally refers to water tower cooling water)

Cooling capacity range: 100KW~2500KW

Temperature control accuracy: ±1℃~±2℃ (customizable high accuracy ±0.5℃)

Temperature range: 5℃~35℃ (low temperature water outlet 2℃ can be customized)

Customizable: Yes

Delivery time: 15 to 30 working days

Note: Due to limited space, if you want to know more product details, please contact our sales staff, we will provide solutions for different processes and equipment!



Introduction to water-cooled low-temperature freezer

This freezer is a refrigeration system consisting of three major components: a refrigeration system, a water system, and an electrical system. The core is the refrigeration system, which is composed of a compressor, an evaporator, a condenser, and an expansion valve. A water-cooled cryogenic freezer is a refrigeration device because its condenser (radiator) is a shell and tube type. It uses an external cooling tower and a cooling water pump to dissipate heat from the cooling tower. The core advantages of a water-cooled cryogenic freezer: high energy efficiency, used in places with cooling water sources, low noise, etc.


Application fields

With the development of modern science and technology, the requirements for diversified products are not met by normal temperature water for some processes and equipment. For example, pharmaceutical chemicals, food and beverages, special electronic materials and other high-end industries often require low-temperature freezers to meet process requirements. Dawoxi low-temperature freezers use foreign top-level brand compressors and advanced process structure design to meet some low-temperature freezing requirements within -40 degrees.


Freatures of refrigeration products

1. The temperature control system adopts a microcomputer 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℃~-40℃ and can be adjusted arbitrarily.

2. The core component compressor adopts internationally renowned brands such as Denmark DANFOSS, Germany BITZER, France Taikang, and the United States Copeland, which is the 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 water shortage 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 model and process


Technical parameters of water-cooled low temperature freezer


modelDW-5LWDW-6LWDW-8LWDW-10LWDW-12LWDW-15LWDW-20LWDW-25LWDW-30LWDW-40LW
Cooling capacity-10KW6.988.110.414.517.1twenty three28.332.745.656.2
-155.66.88.311.212.917.8922.126.83545
-204.45.36.4910.713.51821.32736.5
power supplyThree-phase 380V 50Hz (60Hz)
Total input powerKW2.954.755.556.758.910.61317.22634
Temperature control range5-35
Temperature control accuracy±1
refrigeranttype
R22 (R407C/R410A/R404A)
Control method
Thermal balance expansion valve
compressorformScroll type (piston type)
power(KW)2.244.867.89.511.515twenty two30
Water tankWater tank capacityL303030606060100150240300
Water tank material
SUS304 stainless steel
Pipe diameter
G1〃G1〃G1〃G1〃G1-1/2"G1-1/2"G2〃G2-1/2"G2-1/2"G3〃
Water PumpYang Cheng
20202020202020202020
power
0.750.750.750.751.11.11.52.244
Evaporatortype
Plate heat exchanger (shell and tube)
Chilled water flowm3/h1.362.262.723.374.575.446.959.141418.3
Condensertype
Shell and tube
Cooling water flowm3/h2.5834.15.46.849.812.316.8twenty two29
Security protectionCompressor overheat protection, overcurrent protection, high and low pressure protection, overtemperature protection, flow protection, phase sequence/phase loss protection, exhaust overheat protection, and antifreeze protection.
Dimensionslongmm89089011701170117017001850200020002200
Widthmm500500710710710810990113014801660
highmm84084012001200120014301680172018001800
Unit weightKG15016826030045053075083510801125

Note: 1. The cooling capacity is measured under the following temperature conditions: the refrigerant is 60% glycol aqueous solution; the cooling water inlet/outlet temperature is 2/37℃. (The cooling capacity is the nominal cooling capacity)

          2. Working range: Chilled water temperature range: 22℃ to 37℃, the cooling inlet temperature difference is 3.5℃ to 10℃; the refrigerant outlet temperature is 5℃ to 30℃, the refrigerant inlet and outlet temperature difference is 2.5℃ to 10℃.

          3. The refrigerant is a 60% glycol aqueous solution prepared by the user (please refer to the low temperature refrigerant configuration table for details)

          4. The above specifications and dimensions are subject to change without prior notice


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