Heat preservation apparatus for solar water heater exhaustion spill

Abstract

The invention discloses a vent and overflow insulation device of a solar water heater. The device is made of borosilicate glass 3.3 which undergoes toughening treatment in a toughening furnace and a hollow thin wall of which can resist severe cold and high temperature; the top part of the device is bent into 1-3 rings of O shape, and the overall top part takes a P shape, and the tail part of the P-shaped tube is arranged on a vent and overflow tube made of a hollow stainless steel material by a silicone rubber gasket, wherein, the external part of one end of the vent and overflow tube is provided with threads; silicone rubber gaskets are attached in the stainless steel tube and between the two ends of borosilicate glass tubes, and a waterproof sealing material is sealed in the stainless steel tube and between the borosilicate glass tubes sealed with the silicone rubber gaskets, the P-shaped tube is filled with water, namely, a water sealing layer, heat is confined to the water sealing layer at normal state, and a little pressure of the vapor escapes from the water sealing layer when the temperature continues to increase to 100 DEG C, and is condensed and collected as distilled water.

Description

Technical Field: [0001] The patent of the invention relates to an energy-saving technology device. Background technique: [0002] Solar energy is an inexhaustible and inexhaustible new energy source for human beings. The average distance between the sun and the earth is 100 million kilometers. Outside the earth’s atmosphere, the solar radiation power density is 1.353KW / m 2 (Called the solar constant), when the earth's surface is incident perpendicularly at noon, the solar radiation power density is about 1KW / m 2 If the total radiant power from the sun to the earth is converted into electric power, it is 17,71012KW, which is 108 times larger than the current average power consumption in the world. Solar water heater is a measure to solve the use of new energy. In recent years, with the background of the depletion of conventional energy, the country has advocated the development strategy of vigorously developing and using inexhaustible solar energy, which has important practical si...

AI Technical Summary

Problems solved by technology

It has been nearly 30 years since the solar water heater appeared in the 1980s. It is composed of a water tank with a layer-preserving structure, heat collecting pipes, brackets, pipes and indoor application systems. The application of solar water heaters has the following points that have not been encountered so far. Difficulties: 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 must close the water. During the period, you have to wait. If the weather is bad the next day, the water temperature will not be 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 become cold water again, causing energy waste; (6) The outlet of the exhaust overflow pipe is connected to the atmosphere, and the water pump is used to circulate the water 24 hours a day. Make hot water multi-point water supply, and use electric heating tape to keep the water pipes warm

But there are disadvantages: long-term power consumption and high loss of water pumps and electric heating belts, the lack of sunshine in winter, the natural cooling of pipelines for a long time to send hot water, can not continue to have defects and deficiencies of hot water; winter freezing period, Due to the low outdoor temperature, the cold water in the pipeline is easy to freeze, which makes it inconvenient to go up and down the water. At present, electric heating belts are often used to ensure the smooth flow of the pipeline, resulting in waste of electric energy; The inlet and outlet of the water tank insulation layer are installed on both sides of the water tank to ensure water in and out. After several years of operation, the water will leak out of the inner water tank, and the rainwater is inserted into the inlet and outlet of the water tank insulation layer through the stainless steel pipe installed in the water inlet and outlet pipes. At the same time, the insulation layer at the bottom of the water tank has no water outlet holes, and rainwater remains in the insulation layer, which may reduce the insulation performance of the insulation layer; (8) The switch of the indoor control system cannot be matched with the conventional household switch. The overall switch is beautiful; (9) The water tower for storing water sources is an integral part of the solar water heater, and it is responsible for continuous water supply to the solar water heater tank to ensure the normal operation of the solar water heater; (10) The current situation of the available water for the existing solar water heater is : It is composed of water in the water tank and the heat collecting pipe. The water in the water tank can be used directly, but the water in the heat collecting pipe cannot be used directly, resulting in waste; the water source varies from place to place, and scaling under high temperature conditions reduces the effective heat absorption efficiency of the heat collecting pipe. It is also very troublesome to clean up the scale and impurities in the heat collector every year, causing damage to the heat collector tube. (11) The actual use status of existing solar water heaters is: in winter, after one or more days of heating hot water, the original water tank There are 250Kg of hot water at 90°C, and 130Kg in the heat collecting tube. When the first person is washing at night, 50Kg of hot water is used, and 50Kg of cold water below 10°C is added from the water tower into the solar water heater tank. At this time, the hot water in the water tank may only be 70°C hot water. The second person used 50Kg of hot water for washing, and added 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 ℃ hot water, hot water is not guaranteed when the third person washes; (13) Fresh water is in short supply in coastal islands, seawater desalination has huge investment, covers a large area, and there are many follow-up consumables and high costs; (14).Industrial Salt production occupies a large area and is labor-intensive

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