Control method of solar water heater with scale-prevention and water-storage functions
A solar water heater and hot water technology, applied in solar thermal power generation, solar thermal devices, heating devices, etc., can solve the problems of easy breeding of pathogenic bacteria clusters, bursting, unfavorable skin, etc., to ensure normal and efficient work, simple installation and construction , reliable effect of the control method
Inactive Publication Date: 2014-08-06
FUJIAN UNIV OF TECH
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Problems solved by technology
The water in conventional solar water heaters is likely to produce harmful substances such as nitrate and nitrite after repeated heating, and it is easy to breed pathogenic bacteria
Therefore, bathing with such water is not good for the skin, and long-term use of this water for bathing will cause skin diseases
[0005] 3) With the long-term operation of conventional solar water heaters, the inner wall of the water heater is prone to fouling
If the solar water heater is not cleaned frequently, it will not only reduce its use value, but also cause problems such as bursting and water leakage.
[0006] 4) The water supply operation of conventional solar water heaters mainly depends on the user's experience, which will affect the performance of the water heater and even cause damage
Although these technologies solve certain problems theoretically, they cannot solve the problems in an all-round way, and are rarely adopted by water heater manufacturers.
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[0023] Such as figure 1 with figure 2 As shown, the solar water heater control method with anti-scaling and water storage functions of the present invention requires a solar water heater including a heat preservation water tank 1, a pipe 2, a pressure water tank 3, a plurality of collector tubes 4, and a first The valve 6, the second valve 7, the third valve 8, the fourth valve 9, the temperature sensor 13, the pressure sensor 14 and the controller 5. The thermal insulation water tank 1 is provided with a float valve (not shown). A valve 6, the second valve 7, the third valve 8, and the fourth valve 9 are solenoid valves or butterfly valves, and the conduit 2 is a collector tube;
[0024] The solar water heater also includes a fifth valve 11, a sixth valve 10, and a water mixer 12.
[0025] Based on the above-mentioned solar water heater, the present invention also provides a control method for scale prevention and water storage, including the following steps:
[0026] Step 10S, s...
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The invention provides a control method of a solar water heater with scale-prevention and water-storage functions. The control method involves the solar water heater. The solar water heater comprises a thermal insulation water tank, a guide tube, an air pressure water tank, a plurality of heat collecting tubes, a first valve, a second valve, a third valve, a fourth valve, a temperature sensor, a pressure sensor and a controller. The control method comprises the steps that the temperature range of the thermal insulation water tank of the solar water heater is set, the protection pressure range of the closed air pressure water tank is set and the solar water heater is set to use hot water in the thermal insulation water tank or hot water in the closed air pressure water tank; the pressure sensor is used for measuring the pressure P of the closed air pressure water tank, the temperature sensor is used for detecting the temperature T of the thermal insulation water tank and a series of operations are conducted. By means of the control method, the effect that the water temperature in the solar water heater is kept in a reasonable temperature range, the amount of hot water of the water heater is increased, efficient work of the water heater is realized and meanwhile, scale formation is reduced.
Description
Technical field [0001] The invention relates to a control method of a solar water heater with anti-scaling and water storage functions. Background technique [0002] Solar water heaters are a major industry in the application of solar energy. It quickly won the favor of consumers with its advantages of environmental protection, safety, energy saving, and hygiene. China is a big energy consuming country, and the national energy consumption accounts for about 1 / 3 of the world's total energy consumption each year. And 1 / 3 of the country's total energy consumption comes from building energy consumption. "Ask for energy from the roof", solar water heaters absorb the radiant heat energy of the sun, heat cold water and provide energy-saving equipment for people to use in life and production. Although it meets the needs of production and life, there are also some problems: [0003] 1) The output of hot water is limited by the annual average temperature, annual sunshine hours, total sola...
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Login to View More IPC IPC(8): F24J2/40
CPCY02E10/40
Inventor郭永辉方永梅戴贵龙高兰周李祎彧许媛媛倪刘芳黄丽丽
OwnerFUJIAN UNIV OF TECH