Because the tank wall manhole is located in the lower part of the oil tank, the manhole bears a lot of liquid pressure. In order to prevent leakage, the installation quality of the manhole must be strictly required. The flanges and cover plates are processed with sealing water lines, and care should be taken to protect them during construction to avoid oil leakage during use. Make a mark every time the manhole is removed, so as to avoid dislocation during reinstallation and affect the tightness. When installing the nuts on the manhole cover, apply force evenly in pairs to prevent oil leakage caused by deformation of the cover or uneven force. The tank wall manhole is installed in the lower part of the storage tank, and is mainly used for the staff to enter and exit the storage tan

It is reported that the 2021 China International Fluid Machinery Exhibition, which is highly anticipated by the industry, has successfully closed in Shanghai Hongqiao National Convention and Exhibition Center. In his speech, oriole, President of China General Machinery Industry Association, said that the International Fluid Machinery Exhibition has witnessed the rapid development of China's fluid machinery industry in the past 20 years, promoted technical exchanges and cooperation among the fluid machinery industries, and made important contributions to the communication of market information and the advancement of Chinese fluid machinery technology. This exhibition is held in the 100th anniversary of the founding of the Communist Party of China and the opening year of the

In the engineering design, all kinds of exhaust valves should be selected according to the specific site conditions, and the composite exhaust valve should be installed at the local highest point; For long-distance horizontal pipe section and long-distance down pipe section without break point, composite exhaust valve or micro exhaust valve should be installed; The micro exhaust valve should be selected when the descending slope becomes larger and the ascending slope becomes smaller; When vacuum protection is needed, composite exhaust valve should be selected; For long-distance upward pipe without break point, composite exhaust valve can be selected. The diameter of exhaust valve is micro exhaust valve, which can be directly selected due to its small scope of application. The ge

It is reported that on the afternoon of May 15th, the 2021 Fifth China (Zibo) Chemical Technology Expo was successfully concluded at Zibo International Convention and Exhibition Center. Professional audiences, experts, and media from all over the country gathered in Zibo to witness the huge development opportunities under the "double cycle" pattern. Under the background of "double cycle", the demand for insight into new technologies, new industries and new business forms has soared. The fifth China (Zibo) Chemical Technology Expo in 2021 restarts the engine of scale growth and establishes it as China's leading chemical technology exhibition and exchange The status of the platform: This exhibition has a total of 617 exhibitors with an exhibition area of 55,000 square meter

It is reported that on May 11, Han Jianyu, head of Sinopec’s anti-surge valve localization research team, led experts from Sinopec’s equipment department, Maoming branch, Guangzhou branch, SEI and Guangzhou Engineering Company to work on the localization of anti-surge valves. In-depth research on Newtok Fluid Control Co., Ltd. ("Newtok" for short). Participants in the survey also included experts from Shenyang Blower Group Co., Ltd. ("Shengu Group").     The expert team went to the Newtok production site to understand the development of anti-surge valves, and visited the product exhibition hall, production testing equipment and oxygen valve workshop. Newtok reported to the expert group the relevant situation of anti-surge valve localization: including t

On May 2, the drilling of Well 1-29QKP1 in Nanpu 1-29QKP1, located on the artificial island of Nanpu 1-2 in Jidong Oilfield, was launched, announcing that the construction of the first offshore gas storage group in my country has begun the construction of new wells. The Nanpu 1-29QKP1 well is deployed in the high part of the 109 fault block of 1-29 gas storage in the No. 1 structure of Jidongnanpu Oilfield. It is the first new well constructed in the gas storage of Jidong Oilfield. At the same time, Nanpu 1-29 gas storage The warehouse is also the first domestic offshore gas storage. As the pilot test well for the construction of Nanpu 1-29 gas storage, the well is responsible for the protection of low-pressure and easy-to-leak formations in the construction of offshore gas

The safety valve has great value and significance for safe operation and ensuring safe operation. In order to play the actual value and function of the safety valve, it is very important to pay attention to details in the process of use. As the saying goes, the details determine the success or failure, and the details of the use of the safety valve determine the specific value of the safety valve. Refining safety valves are widely used in the oil refining industry, and have a huge role in regulating pipeline pressure and protecting oil refining safety. So what details should be paid attention to during the use of oil refining safety valves? 1. The correct installation is the same for any mechanical equipment. If it is not installed correctly, the value will be lost and the service

Recently, the 22nd China Environment Expo 2021 (hereinafter referred to as "China Environment Expo") was held at the Shanghai New International Expo Center. The China Environment Expo started in 2000. With more than 20 years of industry experience in the Chinese market and the global resources of the parent exhibition IFAT in Munich, it has grown into an important professional exhibition and exchange platform for the global ecological environment governance industry. Olympus attended this industry event as an exhibitor. During the exhibition, Olympus exhibited "Vanta Handheld XRF Analyzer" and "Terra II Portable XRD Analyzer", sharing advanced experience in soil detection analysis and solid waste recycling with many companies, fully demonstrating Olympus High-quality competitivene

In recent years, throughout the valve industry, many valve research and development areas still have many deficiencies and shortcomings, and master the core technology of the valve to promote the high-quality development of China's economy, improve the comprehensive strength of the country has a very important significance. How to improve the core technology innovation ability of China's industrial products and firmly grasp the initiative of science and technology development in their own hands is a subject and challenge faced by every plus enterprise and every technology research and development personnel. To be sure, some companies have achieved success on the road to innovation and research. It has its own set of complete system on technology. The first is to increase the alloc

Low protection level: the valve motor for Denso is fully enclosed squirrel cage structure, short-time intermittent working system (10min) self-cooling type.According to the requirements of GB4942.1-85, the lowest protection grade is IP44, the highest protection grade is IP68.Valve operating conditions and different environments, the requirements of the protection level is also different.The low level of protection will cause the internal cavity of the motor to be damp or dust and other foreign matter invasion, and the insulation resistance value of the motor will decline and cause damage. Improper packaging, transportation and storage: the package of electric valve should be rainproof, moisture-proof and dust-proof, and the package should be firm and reliable.Rainproof measures shoul

Renewable energy is a natural green energy that does not emit pollutants or greenhouse gases. Its rapid development has laid a solid foundation for the construction of ecological civilization.The 14th Five-Year Plan is a critical and critical period for the transformation to low-carbon energy. We will push forward the steady realization of the carbon peak and carbon neutral targets, and the "staying power" of the development of renewable energy should not be slurred. Fast-growing renewable energy is becoming a major force in China's drive to reach a carbon peak and be carbon neutral.At a recent press conference held by the State Council Information Office, a person in charge of the National Energy Administration said that China's renewable energy development and utilization scale

The control valve is widely used in oil refining and chemical industry. It is used to control the flow rate, pressure and liquid level of the fluid in the production process.In the application of control valves, calculation and selection is the premise, installation and debugging is the key, use and maintenance is the purpose.If the selection of the control valve is not appropriate, improper installation or debugging is not good, it will not play a regulating role.Therefore, it is very important to be familiar with the control valve working principle and maintenance skills. Principle of control valve Pneumatic control valve to compressed air as power source, through the cylinder, film as the actuator, and with the help of electrical valve positioner, converter, solenoid val

Working condition of high temperature including high temperature, high temperature Ⅰ Ⅱ, high temperature, high temperature Ⅲ Ⅳ, high temperature, high temperature Ⅴ level, the following were introduced. 1, Sub-high temperature Sub-high temperature refers to the valve operating temperature in the 325 ~ 425℃ region.If the medium is water and steam, mainly use WCB, WCC, A105, WC6 and WC9.If the medium is sulfur-containing oil, mainly with anti-sulfide corrosion of C5, CF8, CF3, CF8M and CF3M, etc.They are commonly used in oil refinery atmospheric and vacuum units and delayed coking units. At this time, the valves made of CF8, CF8M, CF3 and CF3M are not used for corrosion of acid resistant solutions, but for sulfur- containing oil and gas pipelines.In this working c

The consensus in the industry is that the market environment has indeed changed profoundly.The industry generally believes that due to the increasingly saturated urban sewage, the future of China's sewage treatment in the main battlefield in the countryside.For the rural sewage treatment market, urbanization will drive the construction of a number of thousand-ton scale sewage treatment plants.Even considering the factors of rural population reduction caused by the increase of urbanization rate, the construction and operation of rural sewage treatment facilities in China can still reach the level of one trillion.According to the estimation of E20 Research Institute, the market space of rural sewage treatment is estimated to be 120 billion yuan after the "13th Five-Year" p

Under the goal of achieving carbon peak before 2030 and carbon neutral before 2060, how to promote the construction of the national carbon emission rights trading market (referred to as the "national carbon market") in the opening year of the 14th Five-Year Plan and complete the related targets of carbon emission reduction on schedule has become a hot topic in this year's NPC and CPPCC. The Ministry of Ecology and Environment has announced that the construction of a national carbon market has reached the most critical stage to ensure that online trading will start before the end of June this year.The representative members suggested speeding up the construction of the national carbon market system, optimizing the carbon trading mechanism, and promoting the hierarchical development