Single skin AHU

Single-skin AHU 

Features:

1.  Chilled water single-skin ahu is with frame structure: the latest reinforced aluminum alloy profile is used, with surface being subject to anodic oxidation treatment and internal foamed, to prevent to sweat phenomenon on the frame furface, being firm and beautiful.

2. Box board of chilled water single-skin ahu is of sandwich board structure, with foam insulation, of standard thinckness 25mm, in which the external material is the second sprayed hot-dip galvanized sheet steel, of beautiful appearance, resistant to corrosion, rust and weathering; the inner plate is hot-dip galvanized sheet, also resistant to corrosion and rust; the middle rigid polyurethane foam is uniformly mixed, providing closely integration of external and internal panels and excellent thermal insulation. The box board enjoys firm structure and has excellent performance against sound and vibration.

3. Structure of heat exchange coil of  chilled water single-skin ahu is arranged in the triangular staggered manner, generally 4-8 rows; the heat exchanges tubes are made of high-quality copper(TP2). The high-efficient heat exchanger is made on U.S. OAK assembly line. After overall passing through, the copper tube is closely integrated with the aluminum pieces, providing excellent heat transfer effect, satisfactory for the occasions of the thermal performance requirements; precision procession machinery and strict processing control ensure uniform piece distance and tight tube expansion. The external frame of the coil is bent formed with galvanized stell sheet, being firm and durable; bolt connection are used to prevent rust due to welding of the galvanized layer. The design work pressure of the coil is 16 bars, test pressure 25 bars.

4. Fans and motors of chilled water single-skin ahu. Double air-intake centrifugal efficient fans are used, including a volute made of high-quality galvanized steel plate; the side plate enjoys elaborately designed streamlined appearance and machining air intake; the side plate is manufactured with one stamping, enjoying high stiffness, not liable to fatigue damage; tje exterma; [art pf nog fam os a fixed frame structure, enjoying high strength, stable operation and low vibration; fan impellers are made of high-quality steel plate, of particular streamline shape; each impeller has passed the internal control static / dynamic balance inspection according to national standards. Fan bearings are from international famous brands, are air-tight ball bearings, being prior lubricated and aligned, needing no maintenance during normal use period. Fan shafts are made of C-45 steel, being subject to rough processing, finishing, secondary quenching and tempering, and will not rust, easy for repair and maintenance. Generally low speed fans are used in order to minimize the noise and vibration on the premise that the requirement of air quantity and pressure are met. Fan motors are provided by renowned manufacturers, with insulation class B so as to ensure to quality and service life; in addition, the motors of given brands can be provided when user requires so, or motor insulation class can be enhanced in order to meet the need of different occasions.

5. Coil design of chilled water single-skin ahu is according to varied flows, temperature differences and operating conditions, different internal process designs are adopted in order to maintain coil heat exchange performance and coil water pressure drop at a reasonable and efficient levels and reduce application difficulty; designed head-on wind speed is 2.5m/s - 2.8m/s, and special design requirements are also acceptable.

6. Filters of chilled water single-skin ahu is double nylon embossed nets. It's easy for replacement and removal, can be cleaned and used repeatedly. Non-woven plate filter can also be fitted at the air intake when required, or a new fresh return air mixing box be used. Large dust capacity: under the designed final resistance(double the initial resistance), the dust capacity per square meter is more than 100g.

Pictures for Reference: