In 2014, in order to adapt to the reform situation and accelerate the transformation of government functions, the General Administration of Quality Supervision, Inspection and Quarantine actively promoted the construction of China's import and export products quality and safety risk warning and rapid response supervision system. Vigorously strengthen the risk management foundation and approve the establishment of six national monitoring points for risk information. Based on risk monitoring and using risk assessment as a means, we will continue to increase the inspection and supervision of high-risk imported consumer goods.
Heat exchanger with spiral plate design is formed by steel plate bundle as a whole, forming two identical spiral channels. Two heat transfer medium are meant to meet a counter-current flow, to greatly enhance the heat exchange effect.
It will work well for steam-steam, steam-liquid, liquid-liquid heat transfer, which is applied in chemical, petroleum, solvent, medicine, food, light industry, textile, metallurgy, coking and other industries. The structure is divided into non-detachable spiral Plate Heat Exchanger and detachable spiral plate heat exchanger, according to different customers` requirements.
Most of the time, SS304 is the main material. It protects the exchanger from corrosion over time, while ensuring great transfer efficiency. Pressure range 1.0MPa~2.5MPa also gives the plate heat exchanger a certain bearable requirements.
Distance column, special steel bar inside of the spiral plate heat exchanger, also contributes to its stable connection between plates, and also offers a turbulence flow among the channel for efficiency consideration.
Spiral Plate Heat Exchanger,Spiral Cooler,Spiral Flow Heat Exchanger,Spiral Cooler Heat Exchanger Guangdong Jiema Energy Saving Technology Co.,Ltd , https://www.heatexchangerjm.com
According to statistics, in 2014, the national entry-exit inspection and quarantine institutions detected 23,418 batches of imported garments, and detected 1785 batches of unqualified safety and quality goods, with a total of 1.18 million pieces of goods and a value of 12.93 million US dollars. The main reason is that the fiber composition does not match the label. Color fastness, PH value, formaldehyde, azo and other items do not meet the requirements of China's mandatory technical regulations. Detected 1811 batches of imported simulation jewelry, found 266 batches of safety quality unqualified, 4747.1 kg, 653,000 US dollars, the batch failure rate was 14.7%, and the batch failure rate showed a large after continuous decline for two consecutive years. Rebound. The main unqualified reasons were the excessive release of lead, cadmium and nickel. 12948 batches of imported food contact products were tested, and 228 batches were unqualified. The unqualified test batch rate was 1.76%. The main unqualified reasons were excessive lead and cadmium dissolution of ceramic products, decolorization of plastic products, evaporation residue and acrylonitrile monomer exceeded. The amount of heavy metal dissolved in the metal products and the evaporation residue of the coating exceeded the standard, and the fluorescent substances and lead content of the paper products exceeded the standard. Inspection of 21455 batches of imported toy products, 345 batches of unqualified goods, value of 4,265,600 US dollars, mainly for mechanical physics items and warning signs failed.
The inspection and quarantine institutions have returned or destroyed imported consumer goods that are not qualified for safety and health projects, and rejected unqualified consumer goods outside the country to effectively protect the health and safety of Chinese consumers. Recently, the Beijing Inspection and Quarantine Bureau concentrated on the destruction of 119 batches of unqualified imported garments, amounting to 344,000 US dollars. The Shanghai Inspection and Quarantine Bureau concentrated on the destruction of more than 69,000 pieces of unqualified imported clothing and simulation accessories, amounting to 550,000 US dollars. Brands range from first-line high-end brands to low-end brands. Imported garments that are destroyed intensively involve serious safety risks such as color fastness and pH. Unqualified clothing may cause itching, allergies, dermatitis and other reactions when exposed to skin. The skin of infants and children is thin and tender, and the immune system is not yet fully developed. It is obvious.