The Spiral Plate Heat Exchanger is divided into a detachable spiral plate Heat Exchanger and a non detachable spiral plate heat exchanger. The structure of detachable spiral heat exchanger is relatively simple, both ends of the spiral channel all welding die. Detachable spiral heat exchanger. In addition to the spiral channel Spiral Plate Heat Exchanger Spiral Plate Heat Exchanger,Stainless Steel Spiral Plate Heat Exchanger,Energy Saving Spiral Plate Heat Exchanger Wuxi Weishitiong Machinery Co., Ltd. , http://www.madeinwst.com
The era of "cars = luxury goods" is long gone. According to statistics, the number of vehicles in the city of Hangzhou has reached 1.18 million, 322.7 million in the urban area (excluding Xiaoshan and Yuhang), and the number of private cars in urban areas has reached 25 vehicles/hundred. Car consumption has led to the rapid development of the used car trading market and the auto parts market. However, some unscrupulous merchants produce and sell fake and inferior auto parts from time to time. While affecting the reputation of the auto market, they also seriously damage the legitimate rights and interests of consumers. In response to these circumstances, the Hangzhou City Department of Industry and Commerce recently organized special efforts to carry out special rectification actions in the used car trading market and auto parts market in the city.
It is understood that in this special rectification operation, the city of commerce and industry investigated a total of 18 various types of used cars and auto parts markets, inspected 1,229 business sites, placed on record 22 cases, including 17 cases of more than 10,000 yuan, involving a value of 186,900 yuan. A total of 15536 ​​pieces of counterfeit auto parts were seized and fined 338,000 yuan. In the urban auto parts market of Hangzhou Auto Parts City, Zhejiang Auto Parts, Zhejiang Jintong Auto Parts City, Hangzhou Tianmu Auto Parts Market, and Hangzhou Auto City Auto Parts Market, the company is engaged in the operation of automotive brake linings that may cause personal injury. Products that have been forced to produce standards in countries such as automobile lamps and lanterns have all been sampled and tested by Zhejiang Fangyuan Testing Group Co., Ltd. The test results showed that the 19 batches of brake linings of the spot were qualified in 14 batches and 5 batches were unqualified, and the qualification rate was 73.68%. 19 batches of automobile lamps were sampled, 14 batches were qualified, 5 batches were unqualified, and the pass rate was 73.68%.
The industry and commerce department stated that from the inspection results, the manufacturers of brake linings and automobile lamps that have undergone random inspections can basically control the quality of products in accordance with the technical conditions stipulated by the industry standards. Most of the products produced by the enterprises are relatively good. However, there are also some companies, due to the increasingly fierce competition in the auto parts industry in recent years, in order to survive without hesitating to fight the price war, resulting in product quality can not be guaranteed.
Spiral plate heat exchanger
Spiral plate heat exchanger
Outside the seal structure at both ends of the other with the same detachable. In order to achieve the purpose of cleaning machinery, detachable spiral channel, open end, with a flat cap and gasket seal, to prevent fluid leakage of fluid to short-circuit the atmosphere or the same channel within the. In order to improve the bearing capacity of the spiral plate, a fixed distance column support is used between the plate and the plate. There are two kinds of fluid inlet and outlet in the cylinder, which are normal and tangential nozzles. It is widely used in China, which has a small fluid resistance and is easy to be rushed out. The utility model has the advantages of convenient use, and can make the heat exchanger stand vertically or horizontally. Both sides of the A, B heat transfer fluid respectively through the spiral plate, wherein a fluid along the screw channel from the outside to the inside, to the central outlet; and another fluid along a spiral channel by center of imports, from outside to inside and out. Two kinds of fluid flow in pure countercurrent. The maximum size of the spiral plate heat exchanger is: plate width 1800 mm, outer diameter of 1700 mm, heat transfer area of 250 square meters, the distance between the plate and the plate of 20 mm. Maximum allowable operating pressure up to 2.5 mpa. The working temperature is determined by the choice of materials, mostly carbon steel, stainless steel, aluminum, copper and titanium.