Tongsheng Advantages

                                                            R & D and design capabilities
1.Advanced design software-HXSim
This software is designed by Tongsheng and Shangai jiao tong university

2.Performance test laboratory
  Cooling capacity:3~30kW              
  Air volume:650~7500m3/h
  Test item:
  Refrigerant to air HX --- Heat exchanger capacity,Air flow rate,Air flow resistance,temperature distribution,
                                    Total pressure drop,Refrigerant volume,Heat transfer coefficient
  Water to Air HX --Heat exchanger capacity,Air flow rate,Air flow resistance,temperature distribution,

                           water flow rate,water resistance,Heat transfer coefficient

 


                                                                   Complete Fin Die Data


Tube type Tube OD Tube space Row space Fin space Fin type
mm mm mm mm
Normal Tube 7 21 18.2 1.8-3.8 V-corrugated flat / / bridge fin edges rippled
7 19.05 16.5 1.8-4.0 V-corrugated flat Louver fin sine wave / edges rippled
7 21 12.7 1.7-2.0 / flat Louver fin / / /
7.94 22 19.05 1.8-3.5 V-corrugated flat Louver fin sine wave / edges rippled
9.52 25.4 22 1.5-4.5 V-corrugated flat Louver fin sine wave / edges rippled
9.52 25 21.65 1.8-3.5 V-corrugated flat Louver fin sine wave / edges rippled
12.7 31.75 27.5 2.5-4.5 V-corrugated flat / sine wave / edges rippled
15.88 38.1 33 2.8-4.3 V-corrugated flat / sine wave / edges rippled
Oval tube 10 25.4 22 1.5-3.0 V-corrugated flat / / / /
10 30 26 1.5-3.0 V-corrugated flat / / / edges rippled
12.7 31.75 27.5 2.0-3.0 V-corrugated flat / / / edges rippled



Strict Quality Control

 

1.Quality control standard

Defective rate:≤1000ppm

Punching FinFins should be straight and clean,shouldnt have cleft and glitch.

 

              

Bending tubeTubes should be clean and full,tube surface shouldnt be concave.

 

         

Expanding tubePlate and fins should be fastened with tube,plate is flat,dont have copper tube lay bare.

 

        

WeldingU-bend and header should be clean and full,no morphs.tubes surface wont be oxidized

 

               

Leakage testing

Water testfulling 5MPa gastesting 5 minutes

    Helium testfulling 5MPa gasLeakage rate1g/m

        Pressure test:fulling 28MPa gas for 24 hours,pressure wont change after 24H.


2.Advanced Machine