The TL type surface cooler is a copper tube through aluminum plate surface cooler, which adopts a mechanical expansion tube and a curved corrugated double flanged aluminum auxiliary plate structure. Mechanical expansion of the tube ensures tight contact between the copper tube and the aluminum foil, and the circular ripple can accelerate fluid turbulence, destroy the boundary layer, and improve the heat transfer coefficient. The structural type, combined with the reasonable design of waterway travel, pipe spacing, and sheet spacing, makes this surface cooler have the characteristics of good heat transfer performance, low air resistance, compact structure, and light weight. It can be widely used in air conditioning, cooling, dehumidification, heating and other engineering projects, and is a suitable supporting product for fresh air units and air handling units. It can also be connected to air ducts for separate use as cooling or heating.
Copper pipes are welded using low-temperature rapid brazing to ensure a pressure resistance of>1.2MPa.
This surface cooler has a variety of blade spacing (2.5-3.6 millimeters), and the current variety is complete to meet the needs of different working conditions and various combinations.
According to the theory of heat transfer, for water air heat exchangers with high thermal resistance on the air side, in order to increase the heat transfer coefficient, it is necessary to reduce the thermal resistance on the air side. An effective method is to use boundary layer theory to increase the turbulent state of the air, that is, to increase the heat release system on the air side. Four types of auxiliary film shapes have been designed for this purpose:
● V-shaped assistance ● V-shaped+slit ● Sine waveform ● Sine wave+bridge
The above four types of auxiliary film shapes can meet different process requirements of different users.

Number of surface tubes n	Effective high B	Full height B1	Width C				c¹				c²				Pipe diameter a	Effective manager A	A2
			2 rows	4 rows	6 rows	8 rows	2 rows	4 rows	6 rows	8 rows	2 rows	4 rows	6 rows	8 rows
4	152	228	160	180	260	330	66	100	165	230	47	40	47.5	50	48×3.5	300-3000	178
6	228	304	160	180	260	330	66	100	165	230	47	40	47.5	50	48×3.5	300-3000	178
8	304	380	160	180	260	330	66	100	165	230	47	40	47.5	50	48×3.5	300-3000	178
10	380	456	160	180	260	330	66	100	165	230	47	40	47.5	50	48×3.5	300-3000	178
12	456	532	160	180	260	330	66	100	165	230	47	40	47.5	50	48×3.5	300-3000	178
14	532	608	160	180	260	330	90	100	165	230	35	40	47.5	50	60×4	300-3000	190
16	608	684	160	180	260	330	90	100	165	230	35	40	47.5	50	60×4	300-3000	190
18	684	760	160	180	260	330	90	100	165	230	35	40	47.5	50	60×4	300-3000	190
20	760	836	180	200	260	350	100	100	165	230	40	50	47.5	60	75×4	300-3000	205
22	836	912	180	200	260	350	100	100	165	230	40	50	47.5	60	75×4	300-3000	205
24	912	988	180	200	260	350	100	100	165	230	40	50	47.5	60	75×4	300-3000	205
26	988	1064	180	200	260	350	100	100	165	230	40	50	47.5	60	75×4	300-3000	205
28	1064	1140	180	200	260	350	100	100	165	230	40	50	47.5	60	75×4	300-3000	205
30	1140	1216	210	220	280	350	115	115	165	230	47.5	52.5	57.5	60	90×4.5	300-3000	220
32	1216	1292	210	220	280	350	115	115	165	230	47.5	52.5	57.5	60	90×4.5	300-3000	220
34	1292	1368	210	220	280	350	115	115	165	230	47.5	52.5	57.5	60	90×4.5	300-3000	220
36	1368	1444	210	220	280	350	115	115	165	230	47.5	52.5	57.5	60	90×4.5	300-3000	220
38	1444	1520	210	220	280	350	115	115	165	230	47.5	52.5	57.5	60	110×4.5	300-3000	240
40	1520	1596	210	220	280	350	115	115	165	230	47.5	52.5	57.5	60	110×4.5	300-3000	240
42	1596	1672	210	220	280	350	115	115	165	230	47.5	52.5	57.5	60	110×4.5	300-3000	240
44	1672	1748	210	220	280	350	115	115	165	230	47.5	52.5	57.5	60	110×4.5	300-3000	240
46	1748	1824	210	220	280	350	115	115	165	230	47.5	52.5	57.5	60	110×4.5	300-3000	240