Shower with long-acting recovery of residual heat

Abstract

The invention relates to a shower with the long-acting recovery of residual heat, which comprises a heater and a shower cabinet, wherein a self-cleaning type hair filtration device is installed on a base of the shower cabinet. After filtration, wastewater with the residual heat is connected and communicated with a spiral type antiscale heat exchanger by a pipeline and a double-body balance pump; after heat exchange, the wastewater is drained by a drain outlet; in the meantime, the water inlet end of the other pump of the double-body balance pump is connected with the water inlet end of tap water; after the tap water passes through the pump, the tap water enters the other circulation passage of the spiral type antiscale heat exchanger for reverse-convection heat absorption; after heat absorption, the water outlet end is connected and communicated with the heater, and then the output end of the heater is connected with a spray thrower; and in the invention, the entire equipment is intelligently controlled by a controller of a single chip computer. The invention has no scaling and dirt blocking, automatic cleaning of solid-state impurities of hair and the like, high heat efficiency of the heat exchanger and obvious energy saving and consumption reduction.

Description

Technical field: [0001] The invention relates to a water heater, in particular to a long-acting waste heat recovery shower, which is especially suitable for showers used in families and hotels. Background technique: [0002] Water heaters are indispensable daily necessities for people. They are widely used and have high energy consumption. For example, gas water heaters consume hundreds of cubic meters of natural gas a year. DC electric water heaters consume more than 10KW per hour. In winter, a large amount of electric energy is still needed for auxiliary heating. In the current era of increasingly serious global energy crisis, energy conservation and consumption reduction has become a common task for all mankind, and it is also an important strategy for the sustainable development of national economies of all countries. For the energy saving and consumption reduction of water heaters, people have tried to recycle the waste heat of waste water after bathing, but they faile...

AI Technical Summary

Problems solved by technology

[0003] 1. Soft scaling and fouling of waste heat waste water after bathing. Since the waste water after bathing is relatively dirty, soft scaling of dirt will be generated in waste water pipes and heat exchangers, and the efficiency of heat exchangers will gradually decrease until they fail, and finally fail due to blockage;

[0004] 2. The hair and some solid impurities in the bath cannot be filtered, blocking the filter holes, resulting in the retention of waste heat waste water, which cannot enter the heat exchanger in time for waste heat recovery, and these hairs and other obstructions cannot be cleaned and washed away by themselves, which affects the waste heat recovery of shower waste water long-term effective operation of the system;

[0005] 3. The heat exchanger, a key component of waste heat recovery after bathing, not only fails to solve the problem of scaling and fouling, but also cannot balance the convection between the refrigerant and the heating medium, resulting in large fluctuations in heat exchange temperature difference, low efficiency, difficult temperature control, and poor application effect

Images