The biggest highlight of the 2021 Guangzhou Air Clean Exhibition was the invitation of Academician of the Chinese Academy of Engineering, Chairman of China Indoor Air purification Brand Cluster, Chairman of the Advisory Group of the Technical Committee on Brand Evaluation of the International Organization for Standardization, Chairman of the China Association for the Promotion of Brand Construction, former Director of the National Standards Commission and Deputy Director of the State Administration of quality Supervision, Inspection and Quarantine Liu Jun visited the exhibition on July 31. Listen to the introduction of the products from various exhibitors, “Exhibition” and “View” push the exhibition site to the most exciting part.
4. The thermal insulation layer and anti-corrosion coating should avoid direct contact with flame. For on-site installation, please follow the following procedures: pipe trench excavation-base treatment (drainage, sand cushion)-lower pipe-steel pipe welding-inspection (water pressure)-installation (pressure test)-foaming-sealing foam cell. Elbow and joint installation can send personnel to the project site to carry out the heat preservation work of the joint, including the installation of the outer casing of the joint, the connection and sealing of the outer casing of the joint with the supervisor, and the foaming work of the on-site joint, but it does not include the welding of the steel pipe of the joint.
With the use of computer networking technology, the condition of the detection equipment can be automatically reported every 10 minutes, such as temperature or pressure data, wear and tear of key components, etc., through more convenient tools such as dashboards or mobile phones (with industrial APP), so that supervisors can achieve remote monitoring to confirm whether the equipment is stable during production, or whether it exceeds the original acceptable range. If there are signs of problems, they need to be dealt with immediately to prevent the occurrence of poor production quality.
GLE2019, with level 4 autopilot, is designed on the basis of more than a dozen safety inventions this year. In automatic mode, the steering wheel and pedals will be retracted in case of danger to provide better collision protection in the event of an accident. New cab layout-“We need a new restraint system concept,” said the designer, such as airbags in dashboards and seat side cushions. When the driver clings to the steering wheel, the sun-like exposure from the visor will keep him alert, which is a good feature when the driver feels tired or distracted. This feature helps drivers focus on the driving of the vehicle rather than anything else.
It includes the installation of the joint outer casing, the connection and sealing of the joint outer casing with the supervisor and the foaming work of the on-site joint, but does not include the welding of the steel pipe of the joint part. The flexible detachable thermal insulation clothing products produced by manufacturers are widely used in the current market. The product can effectively ensure its thermal insulation and heat preservation in use.
The structural design of polyurethane foamed thermal insulation steel pipe is novel, and the insulation work of the joint is carried out on the site of the polyurethane foamed thermal insulation steel pipe project, including the installation of the joint outer casing, the connection and sealing between the joint outer casing and the supervisor, and the foaming work of the on-site joint, but it does not include the welding of the joint part of the steel pipe. High temperature prefabricated directly buried thermal insulation pipe not only has advanced technology and practical performance incomparable with traditional trench and overhead laying pipeline, but also has remarkable social and economic benefits, and it is also an effective measure for heating and energy saving.