Back-flushable type heat exchange system having flow velocity and temperature detecting functions

Abstract

The invention discloses a back-flushable type heat exchange system having flow velocity and temperature detecting functions. The back-flushable type heat exchange system comprises a cold water inlet pipe (5), a hot water outlet pipe (6), a waste water inlet pipe (7), a waste water outlet pipe (8), a spraying head (25), an upper heat exchange water channel (1) and a lower heat exchange water channel (2), wherein an upper heat exchange device (3) and a lower heat exchange device (4) are respectively arranged in the upper heat exchange water channel (1) and the lower heat exchange water channel (2). A heater (13) is further arranged on the hot water outlet pipe (6), and a detector (15) is arranged in the lower heat exchange water channel (2) and used for detecting flow velocity. The detector (15) is connected with a controller (14). The controller (14) comprises a comparison module (143) connected with a setting module (144), the detector (15) and a temperature sensor (27) respectively. The technical problem that stains easily accumulates inside the heat exchange devices and cannot be automatically cleaned is solved.

Description

Technical field [0001] The invention relates to the technical field of heat exchange devices, in particular to a recoilable heat exchange system with flow rate detection and temperature detection. Background technique [0002] With the popularization of water heaters, people enjoy the invigoration and sanitation of showering, and the waste of water resources is also becoming more serious. The heated water is directly discharged after the shower. Since the shower water contains part of the heat and recyclable water resources, the direct discharge of the water after the shower not only wastes a lot of water, but also wastes the heat in the hot water . There is a shower water waste heat recovery device in the prior art, which can effectively collect the waste heat of the shower water. However, since the heat exchange device in the water heater needs to exchange heat frequently, the stains in the waste water tend to accumulate inside. If it cannot be cleaned in time , It will cause...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a water heater heat exchange system with a decontamination function in order to solve the technical problem in the prior art that the stains in the waste water are easy to accumulate inside the heat exchange device and cannot be cleaned automatically

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