Hot water circulation device, hot water circulation control method and water heater
A technology of hot water circulation and control method, applied in fluid heaters, lighting and heating equipment, mechanical equipment, etc., can solve the problem of poor product comfort, the temperature of the water inlet end of the water heater does not reach the set temperature, and the preheating cycle cannot be performed. problem, to achieve the effect of solving the uneven heating temperature
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Embodiment 1
[0028] Such as figure 1 As shown, a hot water circulation device includes: a circulation pipeline 1, a circulation water pump 2 installed on the circulation pipeline 1, a temperature sensor 3, a controller 4 connected to the circulation water pump 2 and the temperature sensor 3, and a controller 4 Connected operator display 5.
[0029] During actual work, the above-mentioned hot water circulation device is installed on the circulation circuit of the water heater. Such as figure 2 As shown, when the water heater is turned on, the circulating water pump 2 automatically works, the controller 4 starts timing and collects the hot water temperature in real time through the temperature sensor 3, and when the temperature sensor 3 detects that the temperature T1 ≥ the set temperature, the circulating water pump 2 stops working , the controller 4 records the total working time t of the circulating water pump 3. At this time, the operation display 5 shows that the temperature control ...
Embodiment 2
[0033] Such as image 3 As shown, a water heater includes: a water heater body 7, a cold water inlet pipe 8 connected to the water heater body 7, a water outlet heater 9, a number of water points 10 arranged on the hot water outlet pipe 9, connected between the cold water inlet pipe 8 and the water outlet pipe 9. The cold water branch pipe 11 between the water points 10, the return pipe 12 is connected between the hot water outlet pipe 9 and the cold water branch pipe 11 at the farthest water point, and a check valve 13 and a hot water circulation device are arranged on the return pipe 12 14.
[0034] Wherein, the farthest water point refers to the farthest path for hot water flowing out of the water heater body 7 to reach the water point. The one-way conduction direction of the one-way valve 13 is from the hot water outlet pipe 9 to the cold water branch pipe 11, so that the cold water branch pipe 11 serves as a circulation loop, and there is no need to additionally set a re...
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