Full automatic control equipment for solar water heater

Abstract

The invention relates to a solar-energy water heater automatic controller which can fully automatically display water temperature, keep temperature in normal condition, and collect distilled water, etc. Wherein, it only uses open contact point plastic sealed dual-metal temperature controller, close contact point plastic sealed dual-metal temperature controller, silica gel gasket, stainless steel tube, three-way valve, dry-reed tube, magnetic plastic float, electromagnetic valve, electric valve, and timing circuit. The invention can obtain the hot water at 50Deg. C with sunlight, to realize full-automatic constant-temperature stepless water feeding.

Description

Technical field: [0001] The patent of the present invention relates to a device of energy-saving technology. Background technique: [0002] Solar energy is an inexhaustible new energy for human beings, and solar water heaters are a measure to solve the utilization of new energy. It has been more than 20 years since the solar water heater appeared in the 1980s. It is composed of a water tank with a layer-preserving structure, heat collecting tubes, brackets, pipes and indoor application systems. The application of solar water heaters has the following points that have not been encountered so far. More difficult problems: Attached information: (1) Water supply depends on the weather conditions of the next day to determine the amount of water supply. When the water is full, people have to close it, and you have to wait during the period. If the weather is bad the next day, the water temperature will not be guaranteed; (2) ) The water level display control system, because scale...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the existing solar water heaters: (1) water supply depends on the weather conditions of the next day to quantitatively supply water, and when the water is full, people have to turn it off and wait during the period. If the weather is bad the next day, the water temperature is not guaranteed; (2) ) The water level display control system, because scale is easy to form when the water temperature is high, and the effective service period is short due to the unreasonable process at the same time, so that the entire control system cannot work normally; , state, when the sunshine makes the water temperature rise to a high temperature, the water tank may be short of water. At this time, the tap water pressure is too high, and water entering the water tank will cause the heat collecting tube to burst when it encounters cold water; (4) The heat of the solar water heater tank is emitted, Because the outlet of the exhaust overflow pipe is connected to the atmosphere, just like a thermos bottle, the surrounding insulation system is well done, but if there is no plug, the heat will escape from the bottle mouth, and the heat cannot be guaranteed, and the solar water heater is the same; First discharge the cold water in the pipeline, and then the hot water will come down. After the hot water is used up, the hot water in the pipeline will turn into cold water again, causing energy waste; (6) During the winter freezing period, due to the low outdoor temperature, the cold water in the pipeline is easy to freeze , resulting in inconvenience of water up and down, currently using electric heating to ensure the smooth flow of the pipeline, resulting in waste of electric energy; On both sides to ensure water in and out. After several years of operation, the water will leak out of the inner water tank, and the rainwater will enter the insulation layer through the stainless steel pipe installed in the water inlet and outlet pipes and inserted into the gap of the inlet and outlet positions of the water tank insulation layer. At the same time, the bottom of the water tank The insulation layer has no water outlet holes, and rainwater remains in the insulation layer, which may reduce the insulation performance in the insulation layer; (8) The switch of the indoor control system cannot be matched with the conventional household switch, which affects the appearance of the overall switch; (9) Store water source As an integral part of the solar water heater, the water tower is responsible for continuously supplying water to the solar water heater tank to ensure the normal operation of the solar water heater; The water can be used directly, but the water in the heat collecting tube cannot be used directly, resulting in waste; the situation of water sources varies from place to place, and scaling under high temperature conditions causes the effective heat absorption efficiency of the heat collecting tube to decrease, and the scaling and impurities in the heat collecting tube should be cleaned every year Also very troublesome, may cause heat collecting tube to damage, (11) the actual use status of existing solar water heater is: in winter, through the hot water of one or more days heating, there is 250Kg 90 ℃ hot water in the original water tank, in the heat collecting tube There are 130Kg. When the first person is washing at night, 50Kg of hot water is used, and 50Kg of cold water less than 10°C is added from the water tower into the solar water heater water tank. At this time, the hot water in the water tank may only be 70°C. When the second person washes, he uses 50Kg of hot water, and adds 50Kg of cold water from the water tower into the solar water heater water tank. At this time, the hot water in the water tank may only be 50°C hot water. The third person washes (12) The multi-core cable used for signal transmission from the top layer to the bottom layer is expensive due to the price increase of copper, which affects The defect of direct use; the patent of the present invention provides a set of devices, which utilizes the use characteristics of solar water heaters: by improving the structure of solar water heaters, it can improve the overall technical level of solar water heaters and bring practicality and convenience to users.

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