universal ion controller, online ion meter, water ion controller Suzhou Delfino Environmental Technology Co., Ltd. , https://www.daruifuno.com
Building energy consumption accounts for approximately one-third of total social energy use. [2] In China, the total energy used by buildings has been increasing year by year, rising from around 10% at the end of the 1970s to 27.45% in recent years. In developed countries, building energy use typically makes up about 33% of national energy consumption. According to research by the Ministry of Construction's Science and Technology Department, with the acceleration of urbanization and the improvement of living standards, the proportion of energy use in China’s construction sector is expected to eventually reach around 35%. Given this significant share, building energy use has become a major weakness in China’s economic development.
The proportion of high-energy-consuming buildings is particularly large, further worsening the energy crisis. As of the end of 2002, only 230 million square meters of energy-efficient buildings had been constructed in China. Currently, more than 40 billion square meters of buildings are high-energy consumers, creating a massive energy demand and a severe energy crisis. According to an official from the Ministry of Construction, by the end of 2000, the construction industry consumed 376 million tons of standard coal annually, accounting for 27.6% of the country’s total energy use. The contribution of building energy consumption to greenhouse gas emissions reached 25%. Due to the prevalence of inefficient buildings, heating alone in northern regions consumes 18 million tons of standard coal each year, causing direct economic losses of 7 billion yuan and emitting over 520,000 tons of carbon dioxide. If this trend continues, by 2020, China’s building energy use could reach 108.9 billion tons. The peak summer air conditioning load would be equivalent to the full capacity of three Three Gorges Dams, which is an astonishing figure. With annual housing construction reaching 1.6 to 2 billion square meters, exceeding the total built area of all developed countries combined, and more than 97% being high-energy buildings, the situation is growing rapidly. By 2020, the area of high-energy buildings is estimated to reach 70 billion square meters. Without immediate attention to energy-saving design in buildings, the energy crisis will only worsen.
China's building energy efficiency remains far behind that of developed countries and requires urgent improvement. Following the energy crisis of the 1970s, developed nations began researching and implementing energy-saving technologies in buildings, while China largely overlooked this issue. Today, China's building energy efficiency lags significantly behind its global counterparts. For example, in heating areas, the thermal performance of building envelopes in China is much worse than in similar climate zones in developed countries. The heat transfer coefficient of exterior walls is 3.5 to 4.5 times higher, windows are 2 to 3 times worse, roofs are 3 to 6 times worse, and air leakage through doors and windows is 3 to 6 times greater. In European countries, the actual annual heating energy consumption of houses is generally around 6 liters of oil per square meter, equivalent to 8.57 kilograms of standard coal. In China, the energy consumption per square meter is 50% higher, meaning it should be about 12.5 kilograms of standard coal—roughly 1.5 times that of Europe. In Germany, which has a climate similar to Beijing, the heating energy standard before 1984 was comparable to that of Beijing, consuming 24.6 to 30.8 kg of standard coal per square meter annually. By 2001, the average had dropped to 3.7 to 8.6 kg, a reduction of about one-third, while Beijing's remained at 22.45 kg. This highlights the need for significant improvements in building energy efficiency in China.
The ion content in water has a great influence on aquatic organisms and the ecological environment. Conditions where some ions are too high or too low can lead to aquatic life death or habitat destruction. By monitoring changes in water quality ions, timely measures can be taken to protect aquatic organisms and the ecological environment. The online ion controller can add a variety of ion composite sensors. Based on the ion selective electrode method, it can detect chloride ions, sodium ions, potassium ions, calcium ions, fluorine ions and other ions. In addition, the controller also has the function of temperature detection and compensation for the measured water sample. The ion controller is configured with 2 SPST relays by default, 2 channels of 4-20mA current output and an optional RS485 interface. The controller power supply is powered by a wide voltage to avoid interference caused by voltage instability. We currently offer ion controllers in two sizes, the small size is suitable for panel installation, and the large size can be wall-mounted or pipe-mounted.