Sensors - solar water heater control of the key instrument

 Decade problems Jinzhao break
 In recent years, with domestic coal, electricity, natural gas and other conventional energy crisis intensifies, solar water heaters save energy highlights the advantages of starting, the industry after 10 years of development, have gradually matured.  Behind the brilliant prospects, production enterprises mixed, after-sales service not protected, dealers limited strength, leading to solar water heater users faced with various problems, such problems mainly from the frequent failure of solar water heater.

 For this failure is the main reason for frequent installed in the solar water heater tank's water temperature sensor failure. At present the majority of solar water heaters used in the use of micro-sensors, separation principle, the use of silicone outer package or other materials, cost is relatively low. Solar sensors working environment is very bad, is placed in water tanks, and the temperature difference in comparison dramatic change sooner or later, in his statement to the surface scale, between the electrodes can not conductive, the sensor failure, the overall control system paralyzed, and a lot of water Loss or not the use of solar water heaters.

 Solar water heaters to really become useful, sensor problems to be overcome.  On the market for electrodes used by the water temperature sensor contact with the surface of the electrode, because the scale of a sensor malfunction, the difficulty is how to solve the circuit will not happen electrical contact with the surface.  Shandong Jinan Tianfuyuan Liu Jianmin, chairman of the Electronics Co., Ltd. under the leadership of the other scientific research institutions, after up to six years of scientific experiments, 2003 for practical operation, the Chinese pilot four years, finally within the industry As long as 10 years to resolve the problem.  Is the only grand launch industry is not afraid of the guitar-float-scale water temperature sensor.

 Jinan Tianfuyuan company's single-float through the water temperature sensor float in the water tanks of plus or minus, driven pendulum to produce the displacement, displacement through the water tank, transmission components into the instrument control signal. Float using special sensors PP materials, high resistance to corrosion, water pollution, to 130 ℃ environment in normal use.  Transmission parts (circuit) in the vast majority of Japan's imports of components used to ensure that the sensor can signal stability and long-term use. 。 And electrode sensors compared Tianfuyuan single-float-level temperature sensor completely overcome the electrode sensors all the weaknesses, burglary at the end of 10 years to solve the industry could not understand the problem.  The product, as -type testing laboratory testing, and the relevant experts identified, agreed that the sensor life is six times the electrode sensors. With the superior performance of the "good music of" brand controllers, so that the whole solar water heater this organism stable, reliable and accurate operation, a fundamental resolution of the solar energy supply system reliability problems.

 R & D in the single-float sensor at the same time, Tianfuyuan companies have also introduced the development of solar collectors for the project Control of the tops of works by sensors, the sensor circuit components in the same water tank, without affecting scale, long life.