The Feentor pneumatic hydraulic tube expander for air conditioning and refrigerator greatly improves efficiency and energy saving

The Feentor pneumatic hydraulic tube expander for air conditioning and refrigerator greatly improves efficiency and energy saving

The Feentor pneumatic hydraulic tube expander has low labor intensity and high production efficiency; The expansion quality is uniform and reliable; The expansion medium does not contaminate the joint; Low residual stress in the expanded tube; Can perform full expansion welding on heat exchangers of any tube plate thickness; Hydraulic expansion can ensure the quality of expansion joints, extend the life of heat exchangers, improve work efficiency, and reduce labor costs. The pneumatic hydraulic tube expander has solved the problems of long construction time and high labor costs in the maintenance and installation of heat exchangers, which has led to the increasing popularity of high hydraulic tube expander in these enterprises.
1. Function

The radiator consists of multiple heat dissipation tubes, a base, heat dissipation fin components, and brackets. Due to the small thickness of the heat dissipation tubes and the large number of heat dissipation fins, the connection is more complicated. It is necessary to eliminate the gap between the heat dissipation tubes and fins (0.4mm-0.6mm) to achieve interference fit and prevent loosening. This is the function of the tube expander.

2. Reference standards

GB/T151-1999

3. Composition of gas-liquid expansion tube machine

The pneumatic hydraulic tube expander consists of three parts: the electronic control part, the pneumatic boosting system, and the expander. The electrical control adopts Siemens PLC control. The pneumatic boosting system adopts a special liquid booster for Feentor high-pressure tube expander It can quickly increase the pressure, and the pressure increase time within a length of 5m and a diameter of 25mm can reach the predetermined pressure in just over ten seconds.

4. Main technical parameters

① Rated expansion pressure: 0-40 MPa, 0-70 MPa (higher pressure options available)

② Expansion speed: about 1 piece/min (water injection expansion drainage)

③ Expansion medium: water

④ High pressure pipe burst pressure: 100 Mpa

⑤ Input power supply: 220 V

⑥ Drive: Compressed air 5-8 kg

⑦ Water source: tap water

⑧ Control system: PLC

⑨ Voltage control accuracy:+-1%

⑩ Workstation: 1 workstation

5. Product Features

① The holding time and expansion pressure can be set arbitrarily to ensure the quality of expansion;

② Foot switch control is convenient to operate

③ The speed of pressure rise and release is fast, and the expansion speed is doubled; More than three times the mechanical expansion joint.

④ Perform a one-time uniform expansion joint on the entire thickness of the heat dissipation tubes and fins;

⑤ The residual stress of the device after expansion is low, making it less prone to gap corrosion;

⑥ After expansion, the axial direction of the heat exchanger does not elongate but slightly contracts, which is beneficial for reducing operating noise;

⑦ There is no pollution at the expansion joint, and the expansion before welding is not affected;

⑧ This device can also be used for conventional heat dissipation pipes with built-in steel ball extrusion expansion joints