DUAL-RING AND STRAIGHT FIN TUBE CONDENSING

摘要

A heat exchanger for supplying heat includes a housing, a bundle of dual-ring, straight fin-coil tubes, and a flue channel. The housing includes a burner, a water inlet, a water outlet and a flue gas outlet. The burner is disposed on a top portion of the housing and connected to an air/gas mixture unit. The first group of fin tubes is disposed tightly, circularly, and coaxially around the burner. The flue channel is disposed below the burner and is formed by a second group of fin tubes. A flow of flue gas vents from the flue channel to the flue gas outlet. The water inlet is connected to the first group of fin tubes which forms the flue channel below the burner. The second group of fin tubes below the burner is connected to the first group of fin tubes. The first group of fin tubes is connected to the water outlet.

主权项

1. A heat exchanger for supplying heat, comprising:
a housing includes:
a burner;a water inlet;a water outlet; anda flue gas outlet; the burner is disposed on a top portion of the housing and connected to an air/gas mixture unit; a first group of fin tubes are disposed tightly, circularly, and coaxially around the burner; a flue channel is disposed below the burner, the flue channel being formed by a second group of fin tubes, wherein a flow of flue gas vents from the flue channel to the flue gas outlet; the water inlet is connected to the second group of fin tubes which forms the flue channel below the burner; the second group of fin tubes below the burner are connected to the first group of fin tubes; and the first group of fin tubes are connected to the water outlet.