Constant temperature gas water heater and control method thereof
A technology of gas water heaters and water heaters, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve problems such as heat exchangers are easy to boil and gasify, affect product life, reduce temperature rise when water is stopped, and achieve a solution Long waiting time for hot water, improve the effect of rapid heating up, and reduce the effect of water supply pressure
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Example Embodiment
[0046] Example 1
[0047] like Figure 1-2As shown, a constant temperature gas water heater in this embodiment includes a burner 1, a heat exchanger 2, a water inlet pipe 31, a water outlet pipe 32, a temperature detection device 4, a water flow detection device 5, a gas control valve 6, and a controller 7 , the flow regulator 8 and the water flow control valve 9, the two ends of the water inlet pipe 31 are respectively connected with the external water supply (ie tap water) and the water inlet of the heat exchanger 2, and one end of the water outlet pipe 32 is communicated with the water outlet of the heat exchanger 2, The other end communicates with the external hot water pipe 33 through a water outlet joint. The temperature detection device 4 is disposed on the water outlet pipe 32 and is electrically connected to the controller 7 for monitoring the water outlet temperature of the water outlet pipe 32 in real time. The water flow detection device 5 is disposed on the wate...
Example Embodiment
[0056] Example 2
[0057] like Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the installation position of the water flow detection device 5 is different. Specifically, the water flow detection device 5 is disposed between the heat exchanger 2 and the connection between the flow stabilizer 8 and the first water outlet 92, so as to ensure that the water flow value detected by the water flow detection device 5 is used to flow through the heat exchanger The water flow rate of 2 can prevent the water heater from being in the mixed water position and the water supply pressure is low and the ignition is turned on, which can effectively prevent the water stored in the heat exchanger 2 from boiling and vaporizing, and ensure the product life.
Example Embodiment
[0058] Example 3
[0059] like Image 6 , a control method for a constant temperature gas water heater in this embodiment, which applies the constant temperature gas water heater described in Embodiment 1 or 2, and the control method includes the steps:
[0060] S3: Exit the bathing mode, and the water heater switches to the mixing gear;
[0061] Specifically, the controller 7 is connected with a timing module. After the water heater is turned off and turned off, the bathing mode is exited. The controller 7 controls the water flow control valve 9 to conduct the second water outlet 93 and the water inlet 91, and disconnect the first water outlet 92 and the water inlet 91, so as to switch the water heater to the mixed water level. , at the same time, the timing module starts to record the length of time when the water heater is turned off and turned off.
[0062] S4: Continue to judge whether the water heater is at the program reset time t 复位 Turn on the ignition again, if s...
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