There are many kinds of FRP profiles, such as FRP round pipe, FRP square pipe, FRP rectangular pipe, FRP round bar and FRP i-bar.
The basic components of FRP profile are resin and glass fiber (including cloth, felt, etc.). It is reinforced with fiber (including glass fiber, carbon fiber, organic fiber and other metal, non-metal fiber) and resin (mainly epoxy resin).Polyester resins, phenolic resins) are composite of other auxiliary materials (main auxiliary materials: mold release agent, curing agent, catalyst, sealing agent, UV light stabilizer, mold cleaning water, gel coat, etc.).It has high temperature resistance, corrosion resistance, high strength, low specific gravity, low moisture absorption, small extension and good insulation and other excellent characteristics.
Fiberglass Square Tube,Fiberglass Square Tubing,Fiberglass Tube,Square Steel Tubing Hebei Long Zhuo Trade Co., Ltd. , https://www.hblongzhuo.com
To this end, Yanshan Petrochemical reused the wastewater as an important industrial technology research project, set up a research team specifically, explored the optimization process, and finally independently developed a biofilter-point-chlorination combination process to remove organic matter and ammonia from the wastewater. Nitrogen complete sets of technologies and obtained national invention patents. In 2002, Yanshan Petrochemical used this self-owned technology to invest more than 16 million yuan to build the largest Western wastewater reuse plant in its class, which is mainly used for wastewater treatment and reuse of refinery and synthetic rubber divisions. The commissioning of this unit not only reduced the wastewater discharge of more than 70% in the Western District, but also produced 450 cubic meters of recycled water per hour to replace the new water supply to the circulating water systems of these two plants. In 2004, they invested 70 million yuan to build an Eastern District chemical wastewater reuse plant with an average capacity of 1,200 cubic meters per hour. Xu Chuanhai once served as the deputy manager of the reuse project. He said: “This device was the earliest use of the “ultrafiltration + reverse osmosis†double-membrane process technology in the reuse of chemical wastewater treatment. It is characterized by good treatment effect. Sulfur and sulphide in sewage, benzene and phenol, phosphorus and various suspended oils can all be effectively removed. The final quality water produced is even better than the pure water that people drink.†Yanshan Petrochemical Although the device has invested nearly 100 million yuan, it can produce nearly 10 million cubic meters of reuse water each year, accounting for 20% of the company's total annual production water, which is equivalent to opening up a new water source for the company's production and easing the water supply pressure in Beijing. , Reduced pollution and achieved a win-win result for both economic and social benefits. Throttling priority to improve the utilization efficiency of water resources Yan Jiang, director of Yanshan Petrochemical Production Management Department, said: “The company adheres to the concept of water conservation in small and large areas. It not only pays attention to the treatment and reuse of terminal sewage, but also pays attention to the production process. Run leaks and pay attention to saving water in every process.†In order not to waste a drop of water, Yanshan Petrochemical combined with the company's long-term running time of the groundwater pipe network, it has always been a persistent task to make leaks and leaks a routine management task. They hired a professional leak detection company to carry out pipeline mapping and pipeline leakage inspections at their respective production plants. Every three years, a water balance test is also conducted to find out the bottom of the house and provide basis for formulating water-saving plans and programs.
At the same time, continuous application of new and high technologies has promoted water-saving and emission reduction. According to Chang Jiang, industrial condensate water contains 20% to 30% of the total steam heat, which is a considerable amount of waste heat resources, and the water quality is excellent. However, for a long time, the recovery rate of condensed water in many enterprises in China is very low, resulting in huge waste of water resources and heat energy. To this end, Yanshan Petrochemical invested 7.5 million yuan to improve the open recycling system for the original condensate produced by the company's production facilities, and adopted closed collection for the condensate recovery system of the SBS unit, MTBE unit, and butyl rubber unit of the Synthetic Rubber Business Unit. The technology has been transformed to deliver the condensate collected to the power plant condensate recovery unit in a timely manner. 70 cubic meters of condensate per hour and about 2 tons of steam can be recovered. Condensed water closed recovery purpose is to save water and energy, but in the process of condensate delivery, due to long-distance transportation and other causes of condensate iron and oil content exceeded the impact of the boiler water treatment device. In order to solve this new problem, Yanshan Petrochemical began technical demonstration and field trials in 2005. On August 30, 2006, it invested 17.7 million yuan to introduce the foreign “double layer coating†treatment process to build condensate degreasing and iron removal. The device is effective after it is put into operation, and it has truly realized the integration of water saving, energy saving and emission reduction. In 2003, the refinery oil system caused leakage of the water cooler due to corrosion of the equipment, causing cooling circulating water to carry oil and wax. Wu Xuejie, the technical director of the refinery production technology department who was involved in the processing work at the time, said: “The conventional method of dealing with circulating water leaking materials is to make a big rush. This method not only wastes a lot of water and chemicals, but also has an impact on the sewage treatment plant.
Therefore, we did not deal with the conventional method. Instead, we used the enzymes and advanced oxidation technology of a new technology application research institute in Jiangsu Province to treat the leaked materials. The problem of oil leakage from the system was solved without replacing the pollutants, and it was still able to maintain high concentration operation. . Later, in the daily water treatment process, the oil refinery also adopted this technology, and the entire plant's circulating water system can reduce the amount of water recharge and the amount of sewage discharged per year by more than 100,000 cubic meters. Strengthening the management of water-saving and emission-reducing facilities achieves the desired results from the "fifteen." Starting from the initial period, Yanhua invested a total of RMB 250 million to implement more than 30 water-saving and emission-reduction projects. In order to improve the effectiveness of these projects, Yanshan Petrochemical has comprehensively strengthened its operations management. In 2001, the Deputy Director of Production was established as the The team leader, deputy chief engineer in charge of power is the leading team for water saving and emission reduction of the deputy team leader, and the office is set up in the company's production management department, establishing and perfecting a four-level water-saving management network of “company-plant-workshop-teamâ€. Yanshan Petrochemical Company's Industrial Water and Water Saving Management System and Yanshan Petrochemical Company's Water Saving Assessment Method require each subordinate unit to further decompose the water saving indicators into various production devices in light of their own actual conditions, and strictly test the economic responsibility system. Timely cash rewards and penalties. For individual water-saving emission reduction projects found after the use of design defects or equipment instrument failures and other issues, they insist on the company At the regular meeting of the Water Pollution Reduction Project Coordinating Conference and Energy Conservation and Emission Reduction, the organization design, construction, and related departments will be promptly resolved, and the water saving and emission reduction measures that have been put into use will be included in the equipment management system of the refinery company. Multiple self-inspections and unified inspections were organized to promptly rectify the problems found, ensure the normal investment of water-saving and emission reduction projects and achieve the desired results.
Yanshan Petrochemical Water Saving and Emission Reduction: Benefit to Technological Progress
Located in Beijing, the capital, Yanshan Petrochemical is Beijing's largest industrial company and is responsible for providing high-quality clean oil products for the Beijing Green Olympics and ensuring the energy supply in the capital. Beijing is one of the most severely water-scarce cities in the world. At the same time, environmental standards are extremely strict. How to increase production without increasing water or increasing pollution has become a bottleneck for the sustained and healthy development of Yanshan Petrochemical. To this end, Yanshan Petrochemical has been committed to water resources conservation and industrial waste water resources, and insisted on relying on scientific and technological progress, explored a water-saving and emission-reducing road from water withdrawal, water use to sewage disposal and recycling to closed-circuit recycling. On July 29, Ma Chenghua, deputy manager of Yanshan Petrochemical and leader of the Leading Group for Water Saving and Emission Reduction, said in an interview that during the “10th Five-Year Plan†period and the “Eleventh Five-Year Plan†period, Yanhua invested 250 million yuan to implement water conservation In terms of emission reduction technology projects, although the scale of refining plants has been greatly increased, the amount of new water taken out by enterprises' industries and the volume of external water discharge have decreased year by year. It is understood that in 2007 compared with the end of the “10th Five-Year Planâ€, the annual crude oil processing capacity of Yanshan Petrochemical increased from 8.5 million tons to 10 million tons, and the annual ethylene production capacity increased from 450,000 tons to 800,000 tons, and the company’s industrial fresh water consumption decreased. A total of 8.3 million tons were refined; tons of oil from oil refinery processing decreased by 0.076 tons, tons of crude oil from oil refining processing were reduced by 0.099 tons, and the water consumption per million yuan of chemical production was reduced by 4.329 tons. The industrial water reuse rate increased by 3 percentage points to 98%. Pollution must realize the sustainable utilization of water resources to save water and water must be controlled.Fully “using limited water resources to create an unlimited water cycle†is an important entry point for Yanshan Petrochemical's water saving work.The company’s Minister of Environmental Protection Xu Chuanhai said: “The tenth five-year plan†In the past, about 38 million cubic meters of sewage was discharged every year after treatment in Yanhua, which is also a resource. Although the investment in the treatment and reuse of sewage is large, it is a water-saving and emission-reducing measure with quick returns and a long payback period. ."