| 摘要 |
A heat exchanger consists of an outer casing, core tube device, flow guide plate and sealing means. The outer casing comprising the lower and upper outer casings has the front and rear enclosed plates fixed to both ends to form a closed casing. The core tube device provided at the middle portion of the outer casing includes a core tube body, end enclosed plates and heat exchanging copper tubes. The flow guide plate is located between the inner wall of the outer casing and the outer wall of the core tube body with the sealing means provided between the upper and lower outer casings and secured into an integral casing by bolts and nuts. The exhausted hot water enters the heat exchanger from the inlet on the outer casing and exits the outlet while the clean tap water enters the heat exchanger from the opposite inlet provided on the core tube device. The hot water absorbing the heat from the exhausted hot water exits the outlet, thus giving full recovery of the heat stored in the exhausted hot water, energy savings and ease of manufacturing and cleaning.
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