Coaxial heat exchanger

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Coaxial heat exchanger is made by  Coaxial Coils to welded inlet and outlet ,and then covered by insulation coat.It is used for as Water Cooled Condensers in Water Chillers, in Water Source Heat Pumps and other systems which is need to do heat exchange. We accept to customize dimesion .

1,Coaxial condenser for air source heat pump/ground source heat pump/Refrigeration Unit

Inner tube material: twisted type copper tube (with twisted 4 heads,6 heads or 8 heads);
Outer tube material: Steel tube or copper tube(optional);
Water flows in the internal copper tube,anti-corrosion;
Refrigeranti goes through between outer tuber and inner tube.Because inner tube is designed with twisted type,can increse heat exchanging capacity and working efficience;
Shape: Oval, Round, Or Square;
With fixing feet;
Wuality line welding;
Tested by filling 3.5Mpa nitrogen,no leak;
Outer tube is sprayed with anti-corrosion powder and then sprayed with black powder;
Coated with 12mm insulation material;
With plastic end cap for water inlet & outlet.

8000BTU Coaxial heat exchanger,0.65RT (Ton Of Refrigeration)

12000BTU Coaxial heat exchanger,1RT (Ton Of Refrigeration)

16000BTU Coaxial heat exchanger,1.3RT (Ton Of Refrigeration)

24000BTU Coaxial heat exchanger,2RT (Ton Of Refrigeration)

32000BTU Coaxial heat exchanger,2.5RT (Ton Of Refrigeration)

40000BTU Coaxial heat exchanger,3.2RT (Ton Of Refrigeration)

48000BTU Coaxial heat exchanger,4RT (Ton Of Refrigeration)

56000BTU Coaxial heat exchanger,4.5RT (Ton Of Refrigeration)

64000BTU Coaxial heat exchanger,5RT (Ton Of Refrigeration)

80000BTU Coaxial heat exchanger,6.5RT (Ton Of Refrigeration)

96000BTU Coaxial heat exchanger,8RT (Ton Of Refrigeration)

160000BTU Coaxial heat exchanger,13RT (Ton Of Refrigeration)

… …

 2, Coaxial condenser for marine,Coaxial heat exchanger for marine

Coaxial condenser used in marine A/C  must have excellent corrosion resistance.Smartclima`s Coaxial condenser for marine/ Coaxial heat exchanger for marine has good performance as following:

1. Corrosion resistance
Applicable to ice machinery since excellent corrosion resistance of inner tube CU-NI and outer tube HPCC steel.
2. High efficiency
The patented convoluted inner tube generates more area and strongly enhances heat transfer between water and refrigerant.
3. Anti-freezing capability
Multi-spiral structure of inner tube imparts outstanding anti-freezing capability to coaxial heat exchanger.
4. Cleanness
Multi-spiral structure of inner tube allows water flow in high-speed turbulent state which will remove foul automatically to remain channel a high cleanness in long-term running.
5. Convenient installation
Coaxial heat exchanger for marine with simple structure which can be designed into round, trombone, rectangle, double helix and spiral shape. Customers are highly free to specify shape and dimensions to fit their units.

3,Customize Coaxial heat exchanger

*We can make Coaxial heat exchanger with single water pipe+refrigerant single  pipe, single water pipe+ refrigerant double  pipe,single water pipe+ refrigerant multi pipe ;

*We can make inner pipe with 4 twisted,6 wisted,8 twisted;

*Pipe material can be optional depending on your request;

*Shape can be Oval, round,square.

Inside detail and design:

Theory of Coaxial heat exchanger:

Coaxial heat exchanger has tube-in-tube and twisted inner tube designs. Rugged tube surface can maximize the overall heat trans

The resulting convoluted tube has increased heat transfer surface area per unit length yet still permits full flow of both water and refrigerant around its entire periphery for improved performance. Turbulence imparted by the convolutions to both the water and refrigerant flows further enhances the thermal performance, while inhibiting the accumulation of deposits on the surfaces. The net result is a highly effective, compact heat exchanger with superior anti-fouling characteristics.

Feature of Coaxial heat exchanger:

1, High efficiency heat transfer: Because of using titanium corrugated tube, the flow channel continuously mutation, so that it always in a highly turbulent although the fluid velocity is very low. It is very difficult to become a laminar flow, and the main resistance for convective heat had being overcome. Simultaneously, the heat transfer are enhanced. so it has high efficiency heat transfer, more than the titanium plain tubes in 2 to 3 times.

2, Anti-fouling ability: The particles in the fluid are difficult to forming in the high turbulence in the flow channel. However, even with a small amount of scale formation on the wall, the turbulence of medium in the pipe, which is strongly erosion anti-fouling ability. Furthermore, it changes the stress of the different temperature between the inner tube and the outer tube, and the curvature of the thread pipe which has elastic characteristics has been changed lightly. That is why the threaded tube heat exchanger has the ability of antifouling and descaling.

3, Strong stress compensation ability: Because of the characteristics of thin-walled, elastic and structural shape threaded pipe, the curvature was changed lightly when the large temperature difference the inner tube and the outer tube to compensate and eliminate the thermal stress. Consequently to prevent the traditional tube heat exchanger to cracking efficiently.

4, With compact structure, small and light: The heat transfer coefficient of the threaded pipe heat exchanger is very high, and the required heat transfer areas are little, also with the small wall thickness, so the titanium corrugated tube heat exchanger has compact structure, small size and light weight.

How to choose Coaxial heat exchanger?

Usually,Coaxial heat exchanger is marked by HP,BTU or KW.  From below table,you can convert unit,and therefore,you can know which model of Coaxial heat exchanger you need.

BTU/hr to tons conversion table

Kilowatts to horsepower conversion table

 Kilowatts to BTU/hr conversion table

Tons to kW conversion table

More keywords: Coaxial condenser for marine

Home>>Refrigerating Parts & Heating Elements>>Heat Exchangers>>Coaxial heat exchanger

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