Rainwater water-saving cleaning system for vacuum tube of solar water heater
A solar water heater and cleaning system technology, applied in the field of solar heating, can solve problems such as high labor intensity, heavy tasks, and decreased heat collection efficiency, and achieve the effects of improving heat collection efficiency and saving water resources
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Embodiment 1
[0017] Embodiment 1: see figure 1 , solar water heater vacuum tube rainwater saving water cleaning system, including sedimentation tank 5, drain pipe 1, outlet pipe 7, ball valve 8, booster pump 13, filter 14, cleaning solenoid valve 15, ten tubular cleaning nozzles 16 and system switch control circuit. The sedimentation tank 5 is arranged at a position lower than the roof surface, and is connected with the drain outlet 3 on the roof surface through a water diversion pipe. The drain pipe 1 is arranged on the upper part of the sedimentation tank 5, and the outlet pipe 7 is arranged in the middle of the sedimentation tank 5. The outlet pipe 7 passes through the ball valve 8, The booster pump 13, the filter 14 and the cleaning solenoid valve 15 are connected with the tubular cleaning nozzles 16; each tubular cleaning nozzle 16 is respectively set on the upper end of each vacuum heat collecting tube 19, and there are 10 heat collecting vacuum tubes in total, and each vacuum tube ...
Embodiment 2
[0022] Embodiment 2: see: 1, 2, 3, 4, the constituent parts and the connection relation of this solar water heater vacuum tube rainwater saving cleaning system are identical with embodiment 1, and the quantity of tubular cleaning nozzle 16 is 20, and the water inlet pipe mouth 36 The caliber is 20 mm, the number of spray holes 34 is 8, and the hole diameter is 5 mm. The entire cleaning nozzle 16 is made of stainless steel and PPR materials for one-time fusion injection molding, the housing 33 is made of stainless steel, and the outer shell 38 and the inner shell 37 are made of PPR.
Embodiment 3
[0023] Embodiment 3: see: 1, 2, 3, 4, the constituent parts and connection relation of this solar water heater vacuum tube rainwater saving cleaning system are identical with embodiment 1, and the quantity of tubular cleaning spray nozzle 16 is 15, and the water inlet nozzle 36 The caliber is 15 mm, the number of spray holes 34 is 12, and the hole diameter is 3 mm. Whole cleaning nozzle 16 adopts aluminum alloy to make.
[0024]
[0025] The circuit breaker 20 is connected to 220V AC, and the AC contactor main contact 22 is controlled by the AC contactor coil 31 through the PLC25. The replenishment solenoid valve 12 and the cleaning solenoid valve 15 are controlled by the replenishment solenoid valve coil 29 and the cleaning solenoid valve coil 30 through PLC25. The input circuit of PLC25 is connected to 24V DC battery 28, the input circuit is connected to 220V AC, the photoelectric liquid level switch 6 is connected to PLC25 input terminal XO, the start button 26 is connect...
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