Sleeve-type heating-and-bathing-dual-purpose water heating furnace and control method thereof

Abstract

The invention discloses a sleeve-type heating-and-bathing-dual-purpose water heating furnace and a control method thereof. The sleeve-type heating-and-bathing-dual-purpose water heating furnace is characterized by comprising a heat exchanger and a radiator; the heat exchanger is connected with the radiator through a heating water returning pipe and a heating water discharging pipe to form a circulation loop; the heat exchanger comprises an inner bathing pipe and an outer heating pipe arranged outside the inner bathing pipe in a sleeving mode, a heating water returning probe and a heating water discharging probe which are used for measuring the temperature are arranged at the water feeding end and the water discharging end of the outer heating pipe respectively, and a bathing water discharging probe for measuring the temperature is arranged at a water discharging end of the inner bathing pipe. When stop valves are closed or a water pump does not work, the heat exchanger continuously absorbs heat, hot water in a heating water way refluxes in the direction of the heating water returning probe under the heating expansion effect of an expansion water tank, and when the temperature of the heating water returning probe rapidly reaches the temperature set value, heating of the heat exchanger is immediately stopped; when the heating water discharging probe is damaged, the heating water returning probe automatically replaces the heating water discharging probe to work.

Description

【Technical field】 [0001] The invention belongs to the field of water heaters, and in particular relates to a casing type dual-purpose water heater for heating and bathing and a control method thereof. 【Background technique】 [0002] The principle of waterway control pump of casing type heating bath water heater at home and abroad is as follows: figure 1 As shown, when the heating is in operation, the water pump 9 works, and the water flows through the casing heat exchanger 1 to supply the hot water to the radiator 2. 1 for heating, when the water temperature drops to a predetermined value, then heat exchanger 1 is heated again, which is the principle of the basic heating cycle. [0003] When the stop valve 11 is artificially closed, the heating water passes through the one-way valve 16 to achieve a small circulation, and the heating water outlet probe 6 controls the burner 15 to heat the heat exchanger 1; when the water pump 9 is not working, the heated water does not pass ...

AI Technical Summary

Problems solved by technology

During bathing work, the other end of the flow sensor 14 is connected to the tap water pipe. When the bath valve 18 is opened, the flow sensor 14 sends a signal to make the water pump 9 stop working. At the same time, the tap water is heated by the heat exchanger 1 and becomes hot water through the bath valve 18. outflow, but when the bath water outlet probe 7 is damaged, the equipment can only be shut down for repair

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